US3859826A

US3859826A - Apparatus for securing office equipment at a remote station

Info

Publication number: US3859826A
Application number: US334276A
Authority: US
Inventors: M Leonard Singer; Robert M Woletz
Original assignee: Individual
Current assignee: Individual
Priority date: 1973-02-21
Filing date: 1973-02-21
Publication date: 1975-01-14
Anticipated expiration: 1992-01-14

Abstract

A device for locking office equipment to a remote fixed base includes a first locking device connected to the base and having a locking cable secured to the base which has an opposite end with a collar which is secured directly to the office equipment. The locking device at one end of the cable may advantageously comprise a hollow metal block which is secured to the base, such as by securing screws which extend from the interior of the block into the base and which cannot be loosened except through a large circular slot which is filled by either a locking member which is engaged into the circular slot and has a key operated latch which is extended to prevent withdrawal or by a locking member which telescopically engages with an upstanding shank portion of a securement member which is secured to the base. The locking member carries a key operated lock which moves a latch member into engagement with the securement member and when it is locked in position it covers the slot against accessibility. The locking cable includes an end portion with axially spaced collars defining recesses which permit the end to be engaged into the circular slot opening when the locking device is not present and then to be moved into a receiving slot which extends radially off from the large circular slot. The opposite end of the cable advantageously carries a similar arrangement or a securement collar which is held in position by a similar locking device which includes a securement member which engages a locking member and is latched thereto by a lock mechanism which is operated by a key.

Description

United States Patent 1191 Singer et al.

[ APPARATUS FOR SECURING OFFICE EQUIPMENT AT A REMOTE STATION [76] Inventors: M. Leonard Singer, 1500 Cardinal Dr., Little Falls; Robert M. Woletz, 294 Buttonwood Dr., Paramus, both of NJ.

22 Filed: Feb. 21, 1973 1211 Appl.No.:334,276

[52] US. Cl. 70/58 [51] Int. Cl E05!) 73/00 [58] Field of Search 70/58, 93, 234, 232,57,

70/DlG. 57, 59, 60, 61, 62, 63

[56] References Cited UNITED STATES PATENTS 1,274,203 7/1918 Sager '70/DlG. 57

Primary Examiner-James R. Boler Assistant ExaminerWai M. Chan Attorney, Agent, or FirmMcGlew and Tuttle [57] ABSTRACT A device for locking office equipment to a remote Jan. 14, 1975 fixed base includes a first locking device connected to the base and having a locking cable secured to the base which has an opposite end with a collar which is secured directly to the office equipment. The locking device at one end of the cable may advantageously comprise a hollow metal block which is secured to the base, such as by securing screws which extend from the interior of the block into the base and which cannot be loosened except through a large circular slot which is filled by either a locking member which is engaged into the circular slot and has a key operated latch which is extended to prevent withdrawal or by a locking member which telescopically engages with an upstanding shank portion of a securement member which is secured to the base. The locking member carries a key operated lock which moves a latch member into engagement with the securement member and s when it is locked in position it covers the slot against accessibility. The locking cable includes an end portion with axially spaced collars defining recesses which permit the end to be engaged into the circular slot opening when the locking device is not present and then to be moved into a receiving slot which extends radially off from the large circular slot. The opposite end of the cable advantageously carries a similar arrangement or a securement collar which is held in position by a similar locking device which includes a securement member which engages a locking member and is latched thereto by a lock mechanism which is operated by a key.

17 Claims, 9 Drawing Figures PATEMTED 5 3. 859.82

sum 1n: 5

PATENTEDJAH 1 41915 3.859.826 sum anr APPARATUS FOR SECURING OFFICE EQUIPMENT AT A REMOTE STATION BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates in general to devices for securing office equipment andin particular to a new and useful device for securing office machines at the end of a connecting cable so that they may be positioned within a desired radius of operation, but secured through the connecting cable to a fixed base.

2. Description of the Prior Art At the present time devices are known for securing adding machines, typewriters, photocopiers, etc. to large fixed bases in offices in order to prevent their theft. In most instances such devices comprise a member which is bolted to a base, and which includes a securing bar or other element which is slidable in respect to the member and which is secured, in turn, to the equipment to be held against theft. With devices of this nature the positioning range of the equipment which is protected is rather limited and in addition, in most instances, the devices are not secured reliably against removal. In cases where the equipment is merely bolted in place, it is not unusual for the machine to be stolen by removal of the bolts which hold them in place.

SUMMARY OF THE INVENTION In accordance with the invention there is provided a locking device which includes a locking cable having one end secured with a key operated latching mechanism to a fitment secured to an office machine and which is secured at its opposite end to a fixed base. The invention advantageously includes a collar formation at one end of the cable, preferably at the machine end which engages over. an eyelet of a securement fitment which is secured to the office machine. The locking mechanism advantageously includes a bolt member having a shank portion which extends through the eye-' let and the collar and also a head portion which is too wide to fit through the collar or eyelet. A key operated latch ona locking member is engaged with the shank portion and latched thereto by turning the key. The opposite end of the cable carries a double collar formation with spaced apart collar portions which form a recess therethrough which permits the device to be en gaged into a large circular slot of a hollow block holding member and advanced outwardly along a radially extending slot so that the wall bounding the radially extending slot extends between the two collar formations. The outer collar formation is advantageously provided with a bullet head or rounded head so that it becomes positioned over one of the securement screws for holding the hollow block member to a fixed base. The base memeber is also advantageously held into position by an additional securingscrew which is engaged through a hollow shank portion of a securement member of a lock mechanism. The hollow shank portion is engaged by the outer securement member having key operated latch means which engages therewith and secures the fastening screw against removal. In addition the outer securement member fills the cylindrical hole of the hollow block so that no access to the interior of the block is possible for the purpose of removing the securement screws unless a key is employed to unlatch the securement and uncover the screws.

Accordingly it is'an object of the invention to provide an improved device for securing; office equipment in position and preferably which includes a long connecting cable so that the office equipment may be positioned at any desired location within the radius of the cable.

A further object of the invention is to provide a device for securing office equipment which includes a fitment plate adapted to-be secured to the base of the equipment to be secured by bolts which are made inaccessible by the fitment and wherein the fitment includes a locking loop formation which fits over an upstanding shank portion of a locking member and which carries a collar of a connecting cable thereon which is locked in position by a securement member engaged with the shank portion, the cable having an opposite end which is adapted to be locked at a fixed location.

A further object of the invention is to provide a locking device for securing, preferably, office equipment in position and which includes a hollow block member which is secured to a base and which includes an upstanding locking member shank portion which extends from an interior bottom wall upwardly into a cylindrical slot of the top wall and which is secured to the block member and including a securement member engagable with said shank portion for locking therewith so as to cover the opening of the block member and prevent access to the removal of screws for loosening the block member from a fixed foundation.

A further object of the invention is to provide an office equipment locking device which is simple in 'design, rugged in construction and economical to manufacture.

For an understanding of the principles of the invention, reference is made to the following description of typical embodiments thereof as illustrated in the accompanying drawing.

BRIEF DESCRIPTION OF THE DRAWINGS In the drawings: FIG. 1 is a front,.side perspective view of a locking device constructed in accordance with the invention;

FIG. 2 is an enlarged, exploded, partial sectional and V 'partial elevational view of one of the latching mechanisms associated with the device of FIG. 1;

FIG. 3 is a front, top perspective view of the other latching device used with the locking device shown in FIG. 1;

FIG. 4 is a section taken along the line 4-4 of FIG. 3;

FIG. 5 is a partial elevational and partial sectional view of another embodiment of the device shown in FIG. 3;

FIG. 6 is an enlarged, exploded, partial elevational and partial sectional viewof another embodiment of the device shown in FIG. 2;

FIG. 7 is an enlarged, exploded, partial elevational and partial sectional view of still another embodiment of the device indicated in FIG. 2;

FIG. 8 is a partial elevational and partial sectiona view of the device shown in FIG. 2 in a closed position; and

FIG. 9 is a view similar to FIG. 3 of another embodiment of latching device.

GENERAL DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, in particular, the invention embodied therein in FIG. 1 comprises, a securing device generally designated for securing a piece of office equipment such as an adding machine 12 so that it may be oriented on a desk or support 14 at a location spaced away from a fixed base 16 which may or may not be a continuation of the desk 14.

In order that the adding machine 12 maybe anchored so that it can not easily be removed, it is secured to a holding plate generally designated 18 which includes a bottom wall portion 18a and an end wall portion 18b. The wall portion 18a contains small size openings 20 for receiving securement elements such as bolts which are advantageously only removable with a special tool. A similar bolt opening 22 is provided in the end wall 18b which is located at the lower end of a rounded portion 18c which is accessible only by the use of a special tool, and which is at least partially blocked by a first latching member or a lock generally designated 24 when the lock is in a locked position. An eyelet or loop plate 26 comprises a flat plate with a rectangular slotted forward portion 28 and a central circular slot portion 30 which leads into the rectangular position. An end 32 is engaged through a loop 34 of a holding member 36 which is secured to the bottom of the plate 18. The loop includes an elongated part 34a into which the flat end 32 engages when it is desired that the loop 34 be oriented'directly outwardly from the bottom wall 18a, when the part 32 fits into the rectangular slot portion 34a the eyelet 26 cannot pivot in respect to the holding member 36.

In accordance with the invention the latching member 24 includes a securement member generally designated 40 which is engagable with a locking member generally designated 42. The securement member 40 includes a head portion 44 of a larger diameter than the circular slot 30 of the eyelet 26 and a shank portion 46 which extends through the slot 30 and which carries locking or latching tabs 48 on each side.

The locking member 42 is telescopically engagable with the securement member 40 and, in the embodiment shown, it fits over the securement member 40 and it includes a hollow interior annular space 50 into which the hollow shank portion 46 projects. The locking tabs 48 engage in a slot 52 which has a vertically extending portion and an upper horizontally extending portion 52a which accommodates the locking tabs 48 when the locking member 42 is rotated relative to the shank part 46. The locking member 42 includes an inner cylindrical portion 54 having locking dogs or elements 56 which move into recesses in the interior of the cylindrical portion 54 as indicated in dotted lines at 56a when a key 58 is inserted into the locking mechanism. When the key 58 is withdrawn the dogs 56 extend out: wardly as shown in the solid line position and they engage into vertical recesses 60 of the securement member 40 and once engaged therein they prevent relative rotation between the securement 40 and the locking member 42. The device is locked when the projecting tabs 48 are positioned within the horizontal groove 52a and at the same time the dogs 56 become aligned with the vertical groove 60. The locking is effected by removing the key 58 to cause the dogs 56 to go into the vertical groove 60 and prevent the relative rotation which is necessary to open the device. When it is desired to unlock the device the key 58 is inserted to withdraw the dogs 56 to the dotted line position in which they clear the groove and permit relative rotation of the locking member relative to the securement member 40. The rotation continues until the projection 48 moves into the vertical groove 52 and the two parts are disengaged by relative axial movement therebetween.

In accordance with the invention the latching member 24 is provided to lock a collar 62 carried on a connecting cable 64 in position engaged over the shank portion 46 and secured in position by the locking member 42. The other end of the connecting cable 64 advantageously has another latching member or lock device generally designated 66 which, in the embodiment shown, comprises a hollow block or holder generally designated 68 having a flat bottom wall 70,

end walls

72 and 74, side walls 76 and 78 and a top 80. The block 68 is secured to the base 16 by one or more screws 82, which extend through the bottom wall and are accessible only from the hollow interior of the block 68. Access is provided through the securement means or screws 82 which includesa large cylindrical slot 84 which is formed in the top wall 80, and which includes a radially extending extension 86 directed toward the end wall 72. The slot 86 forms a receiving channel for locking an engagement head 88 carried at the end of the cable 64 to the block member 68. The engagement head 88 includes a collar portion 88 a which is spaced axially from a head portion 88b which is of domeshaped configuration and wide enough to block access to one of the engagement screws 82 which underlies it. The walls bounding the slot 86 engage into the annular recess 90 formed between the

parts

88a and 88b, so that the head 88 can be removed only by directing it outwardly into a widened cylindrical slot 84.

In order to prevent access to the cylindrical slot 84, and removal of the head 88 and the connecting cable 64, the slot 84 is covered by a latch assembly 92 which comprises a securement member 94 which is telescopically and lockably engagable with a locking member 96. The latch assembly 92 is similar to the latch assembly 24 and the securement member 96 includes an inner cylindrical portion 96a which engages within a shank portion 94a of the securement member 94. The securement member covers and locks a head 82a of a screw 82 which is located within the outline of the slot 84 and thus, prevents the removal of the securement screw. In this construction a guide sleeve 98 is employed between the screw 82 and the securement member 94.

In the embodiment shown in FIG. 5, a latching member or lock generally designated 100 includes a hollow block or holder 102 having a top wall with a cylindrical slot which is closed by a latching member or lock 104. In this case construction cable 64', having an engage- I ment head 88', is held in a slot in the top wall similar to the embodiment shown in FIG. 3. In the construction of FIG. 5, however, substantially all of the securing screws 82' are covered by the latching member 104.

In the arrangement shown'in FIG. 6, a latching member or lock generally designated 106 includes a securelocking screw 114 which extends through the guide sleeve and through an opening 116 in a base plate 118, which is positioned over the fixed base to which the device-is to be secured. A spring 120 is interposed between the bottom of the securement member 110 and the base plate 118 and it functions as a friction clutch which holds the securement member 110 during the fastening of the screw 114 and during its removal when the locking member 108 is removed in the same manner as in the other embodiment.

In the arrangement shown in FIG. 7 there is provided a latching member or lock generally designated 120 which includes a securement member generally designated 122 which is telescopically engageable and lock able with a locking member 124. In this embodiment the securement member includes a base plate 125 having an annular portion extending around a shank portion 126 and which is secured to a fixed base 128 by securement screws 130 which are arranged at equal intervals around the circumference of the annular portion of the base plate 125. In this construction the locking member 124 has a wide skirt that covers all of the screws 130 so that they cannot be removed.

In the embodiment shown in FIG. 8 there is shown a latching member or lock assembly generally designated 132 which includes a securement member 134 having anupstanding shank portion 136 which engages through an eyelet 138 and a base portion 140 which is secured to a fixed base such as by a plurality of screws 142 which extend around its outer marginal edge and which arelocated below the collar 138. The latching member assembly 132 also includes a locking member 144 which may be locked in engagement with the shank portion 136 to the arrangement shown in FIG. 2.

FIG. 9 shows an arrangement similar to FIG. 3 in which a connecting cable 64" carries a head 88" with spaced roller portions 88A" and 88B defining a recess therebetween 88C" which fits into an elongated slot 150 which leads off from a widened slot portion or circular slot 152 of a block member 154 which is secured to a mounting base 156. After the head 88" is inserted into the widened slot portion 152 it is moved into the narrow slot 150 where the

collars

88A and 88B" prevent withdrawal of the head from the block 154. The head 88 is locked against removal by a locking member generally designated 160 having latch means in the form of an extensible latch 162 which may be extended by operation ofa key 164 after the locking member 160 is inserted into the cylindrical portion 152. The locking member includes a cylindrical body 166 which is sized to substantially completely fill the cylindrical slot 152. Once it is in position the key 164 is operated to extend the latch 162 to lock the slot opening 152 and to lock the head 88" in the slot 150.

While specific embodiments of the invention have been shown'and described in detail to illustrate the application of the principles of the invention, it will be understood that the invention may be embodied otherwise without departing from such principles.

What is claimed is:

1. A device for locking office equipment to a fixed base which is adapted to engage through a securing eyelet of the equipment, comprising a securement member having a base portion and a shank portion of smaller dimension then said base portion engagable through the securement eyelet and extending outwardly therefrom, a connecting collar engaged over said shank portion and carrying a connecting cable, a locking member telescopically engaged with said shank portion over said collar, said locking member and said securement member having a key operated interengagable latch means for latching said locking member to said securement member to hold said collar therebetween, said cable having an opposite end with means for locking it to a fixed base.

2. A device according to claim 1, wherein said locking member is engaged over said shank portion, said interengagable latch means including a groove defined on the interior of said locking member extending upwardly from the bottom thereof and provided with a horizontal portion at the upper inner end thereof, said shank portion having a projection at a height above said base greater than the thickness of said collar and engagable in the vertical groove and being movable into the horizontal portion of the groove upon relative rotation of said locking member and said shank por tion, and further including, means for locking said shank portion and said locking member against relative rotation when the projecting portion of said shank portion is in the horizontal groove of said locking member.

3. A device according to claim 2., wherein said shank portion is hollow and includes an interior wall with a vertically extending groove therein said locking member including an inner cylindrical portion extending into the hollow portion of said shank portion as an outer cylindrical portion extending over said shank portion, said latch means further including a dog on said locking member movable into and out of the vertical groove of said shank portion and a key insertable into and out of said locking member for moving the dog inwardly into the cylindrical portion of said locking member to release it from the groove of said shank portion.

4. A device according to claim 1, including a securement plate adapted to be secured to the office equipment having a bottom portion carrying a loop member adapted to be engaged with the eyelet, and comprising a flat plate with a substantially cylindrical opening therethrough.

5. A device according to claim 4, wherein said securement member comprises a bolt with the base comprising a head portion against one side of said eyelet plate.

6. A device according to claim 4, wherein said securement plate includes a horizontal portion adapted to be secured to the base of the office equipment and a vertical portion adapted to be secured to one end of the equipment, said end portion of said plate having openings therethrough for a securing bolt to secure said plates to the equipment being located in a position in which it is blocked by said securement member and said locking member when they are interengaged.

7. A device for locking office equipment to a fixed base which is adapted to engage through a securing eyelet of the equipment, comprising a securement member having a base portion and a shank portion of smaller dimension than said base portion engageable through the securement eyelet and extending outwardly therefrom, a connecting collar engaged over said shank portion and carryinga connecting cable, a locking member telescopically engaged with said shank portion over said collar, said locking member and said securement member having a key operated interengageable latch means for latching said locking member to said securement member to hold said collar therebetween, said cable having an opposite end with means for locking it to a fixed base, the opposite end of said connecting cable carrying an engagement head and including a hollow holding block, securement means carried at the interior of said holding block for securing said holding block to a fixed base, said holding block having a wall with an enlarged slot therein having a radially extending smaller slot portion, said engagement head being engageable in said slot and having separated head parts defining an engagement recess on each side engageable with the walls bearing along the small slot for positioning of the outer head portion within the hollow block, said hollow block having an upstanding second securement member secured to the interior thereof and centered within said large slot and a second locking member engageable with said securement member and substantially filling the large slot to prevent access of the interior of said block member and preventing removal of said cable engagement head, and key operated means for securing said second locking member to said second securement member.

- 8. A device according to claim 7, wherein said securement means comprises at least one securement screw extending through the interior bottom wall of said hollow block, said screw being inaccessible when said second locking member and said second securement memberare interengaged.

9. A device according to claim 8, wherein said securement screw is covered by said securement member.

10. A device according to claim 8, wherein said securement member includes a hollow shank portion, said securement means for securing said hollow block to a fixed base including a threaded securement member extending through said hollow shank portion, having a head portion engaged with said shank portion 7 which is removable from the interior.

' 11. A device according to claim 10, including a sleeve member located within said hollow shank portion, said hollow shank portion having an opening at its inner end for passage of said sleeve member, said sleeve member having a widened funnel portion for receiving a threaded member, said securement means comprising a threaded securement member engaged through said sleeve and having a head portion bearing end said funnel portion of said sleeve.

12. A device according to claim 7, wherein said securement means comprises a plurality of screws extending through the interior bottom wall of said hollow block, all of said screws being covered by said securement member and said locking member when they are interengaged.

13. A device for locking parts to a fixed base comprising a hollow block having a top wall with a cylindrical slot with a radially extending smaller slot portion, said hollow block having a bottom wall with means accessible from the interior thereof for securing said bot- .tom wall to a fixed base, said means for securing said bottom wallto a fixed base being accessible through the large diameter slot portion, a connecting member having a head portion with axially spaced collars defining a recess therebetween permitting said connecting member collars to be moved into the radially extending slot with the collars bearing in respective opposite sides of said top wall of said hollow block member and locking means including a securement member secured to the interior bottom wall of said hollow block member and a locking member locked thereto and which covers a substantial area of the slot so that the interior of said hollow block member is inaceessible.

14. A device according to claim 13, wherein said securement member comprises a hollow cylinder having a closed end wall with an opening for the passage of a securing bolt, and a securing bolt extending through said hollow shank portion into the opening therethrough and through the bottom of said hollow block for engagement with ya fixed base, said locking member covering the open end of said shank portion and preventing withdrawal of the securement bolt.

15. A device according to claim 13, wherein the other end of said connecting member is adapted to be connected to an apparatus to be secured, said means for securing said hollow block member to a fixed base including a plurality of threaded engagement members extending through the hollow block bottom interior, said interengagable securement member and locking member covering said screws.

16. A device according to claim 1, wherein the opposite end of said connecting cable carries an engagement head, and including a hollow holding block having means for securing it to a fixed base, said holding block having a wall with an enlarged slot therein having a radially extending smaller slot portion, said engagement head being engageable in said enlarged slot and having separated head parts defining an engagement recess on each side engageable with the walls bearing along the small slot forpositioning of the outer head portion within the small slot, and a locking member engaged in and filling the enlarged slot and having key operated latch means for latching said locking member to said holding block and thereby preventing said head from being moved outwardly from said smaller slot portion.

17. A device. for locking parts to a fixed base comprising a hollow block having a top wall with an enlarged slot portion with a smaller slot portion extending outwardly therefrom, said block having means for securing it to a fixed base, said means for securing it to a fixed base being accessible through the large size slot, a connecting portion having a head portion with an axially spaced part defining a recess therebetween permitting said connecting member to be moved into the outwardly extending smaller slot with the parts bearing against respective opposite sides of the wall bounding said slot, and a locking member engaged in and substantially filling the large slot and blocking the end of the smaller slot and having latching means for latching said locking member to said block.

Claims

2. A device according to claim 1, wherein said locking member is engaged over said shank portion, said interengagable latch means including a groove defined on the interior of said locking member extending upwardly from the bottom thereof and provided with a horizontal portion at the upper inner end thereof, said shank portion having a projection at a height above said base greater than the thickness of said collar and engagable in the vertical groove and being movable into the horizontal portion of the groove upon relaTive rotation of said locking member and said shank portion, and further including, means for locking said shank portion and said locking member against relative rotation when the projecting portion of said shank portion is in the horizontal groove of said locking member.

3. A device according to claim 2, wherein said shank portion is hollow and includes an interior wall with a vertically extending groove therein said locking member including an inner cylindrical portion extending into the hollow portion of said shank portion as an outer cylindrical portion extending over said shank portion, said latch means further including a dog on said locking member movable into and out of the vertical groove of said shank portion and a key insertable into and out of said locking member for moving the dog inwardly into the cylindrical portion of said locking member to release it from the groove of said shank portion.

7. A device for locking office equipment to a fixed base which is adapted to engage through a securing eyelet of the equipment, comprising a securement member having a base portion and a shank portion of smaller dimension than said base portion engageable through the securement eyelet and extending outwardly therefrom, a connecting collar engaged over said shank portion and carrying a connecting cable, a locking member telescopically engaged with said shank portion over said collar, said locking member and said securement member having a key operated interengageable latch means for latching said locking member to said securement member to hold said collar therebetween, said cable having an opposite end with means for locking it to a fixed base, the opposite end of said connecting cable carrying an engagement head and including a hollow holding block, securement means carried at the interior of said holding block for securing said holding block to a fixed base, said holding block having a wall with an enlarged slot therein having a radially extending smaller slot portion, said engagement head being engageable in said slot and having separated head parts defining an engagement recess on each side engageable with the walls bearing along the small slot for positioning of the outer head portion within the hollow block, said hollow block having an upstanding second securement member secured to the interior thereof and centered within said large slot and a second locking member engageable with said securement member and substantially filling the large slot to prevent access of the interior of said block member and preventing removal of said cable engagement head, and key operated means for securing said second locking member to said second securement member.

8. A device according to claim 7, wherein said securement means comprises at least one securement screw extending through the interior bottom wall of said hollow block, said screw being inaccessible when said second locking member and said second securement member are interengaged.

10. A device according to Claim 8, wherein said securement member includes a hollow shank portion, said securement means for securing said hollow block to a fixed base including a threaded securement member extending through said hollow shank portion, having a head portion engaged with said shank portion which is removable from the interior.

11. A device according to claim 10, including a sleeve member located within said hollow shank portion, said hollow shank portion having an opening at its inner end for passage of said sleeve member, said sleeve member having a widened funnel portion for receiving a threaded member, said securement means comprising a threaded securement member engaged through said sleeve and having a head portion bearing end said funnel portion of said sleeve.

13. A device for locking parts to a fixed base comprising a hollow block having a top wall with a cylindrical slot with a radially extending smaller slot portion, said hollow block having a bottom wall with means accessible from the interior thereof for securing said bottom wall to a fixed base, said means for securing said bottom wall to a fixed base being accessible through the large diameter slot portion, a connecting member having a head portion with axially spaced collars defining a recess therebetween permitting said connecting member collars to be moved into the radially extending slot with the collars bearing in respective opposite sides of said top wall of said hollow block member and locking means including a securement member secured to the interior bottom wall of said hollow block member and a locking member locked thereto and which covers a substantial area of the slot so that the interior of said hollow block member is inaceessible.

14. A device according to claim 13, wherein said securement member comprises a hollow cylinder having a closed end wall with an opening for the passage of a securing bolt, and a securing bolt extending through said hollow shank portion into the opening therethrough and through the bottom of said hollow block for engagement with a fixed base, said locking member covering the open end of said shank portion and preventing withdrawal of the securement bolt.

16. A device according to claim 1, wherein the opposite end of said connecting cable carries an engagement head, and including a hollow holding block having means for securing it to a fixed base, said holding block having a wall with an enlarged slot therein having a radially extending smaller slot portion, said engagement head being engageable in said enlarged slot and having separated head parts defining an engagement recess on each side engageable with the walls bearing along the small slot for positioning of the outer head portion within the small slot, and a locking member engaged in and filling the enlarged slot and having key operated latch means for latching said locking member to said holding block and thereby preventing said head from being moved outwardly from said smaller slot portion.

17. A device for locking parts to a fixed base comprising a hollow block having a top wall with an enlarged slot portion with a smaller slot portion extending outwardly therefrom, said block having means for securing it to a fixed base, said means for securing it to a fixed base being accessible through the large size slot, a connecting portion having a head portion with an Axially spaced part defining a recess therebetween permitting said connecting member to be moved into the outwardly extending smaller slot with the parts bearing against respective opposite sides of the wall bounding said slot, and a locking member engaged in and substantially filling the large slot and blocking the end of the smaller slot and having latching means for latching said locking member to said block.