US1539546A - Pillar crane - Google Patents

Description

May 26, 1925.

J. M. DEENIK PIL-LAR CRANE Filed Aug. s. '1923 3 Sheets-*Sheet 1 www May 26, 1925.

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May 26, 1925.

J. M. DEENlK PILLAR CRANE Filed Aug. Z5, 1925 s sheets-sheet s rfa Tnt? STTES 50E-IN M'. DEENIK, GF CHICAGO, LLlNOS, ASSIGNOR T0 VHLTING CORPORATON, 0F HARVEY, ILLENUI, A GOQBATCN F ILLINOS.

PILLAR CRANE.

Application filed August 3, 1923.

Be it known that l, JOHN M. DnnNIK,"`-a citizen of the United States, residing at Cl irago, in the county of Cook and State of illinois, hare invented a certain new and useful Improvement in Pillar Cranes, of which the following is a specification.

This invention relates to a conventional form of cranes commonly called pillar cranes in Which the sustaining truss structure carrying the hoisting trolley is rotatably mounted upon a vertical support frequently located upon and carried by a freight ear.

in the use of the device just re erred to, say on Wrecking cars. it is necessary that the entire crane mechanism be of a minimum height so that it can pass under bridges and other structures partially or wholly overhan, ng the railroad on which the car is yet, for etiective Work as a crane, it is iieiA vntly desirable to have the trolley hiringl actual lifting operations supported `so that it can Work, viz.: travel backward 25 and forward at a greater height than the normal height of the conventional forni of such crane Where this invention is not cmploycd.

y'lhe principal object of this inrention is to provide a pillar erano in which the outer ien of the main support along which the 1 trolley travels may be elevated bodat the v-:ill of the operator and thereby 1l in such elevated position during actual use of the device. he invention consists in mechanism for attaining the fore o'ing and other objects; riifh can be easily and eon'iparatively cheaply made: which is satisfactory in use and is not readily liable to get out of order.

Referring; to the drawings in which like numerals represent tho san'ie parts through1 ont the several views:

Figure 1 is a side vier.' of a wrecking cai' equipped with the uiechanisin of this invention in its preferred form.

Figure 2 is an enlarged plan view of the essential portions of the device of Figure 1, an unimportant portion being broken array to bring the drawing Within proper limits.

Figure 3 is a detail plan view of the irregular line of Figure 4.

Figure 4 is an enlarged, sectional slele vieiv on the line 4--4 f Figure 2,

Serial No. 655,482.

Figure 5 is a detail end View taken on the line 5 5 of Figure 4.

The pillar crane of this invention is shown in Figure 1 mounted on a flat car 10 traveling on Wheels 12 over a conventional railroad track 14. Rigidly attached to the top of the car 10, by any suitable means as boltsI 16, is the main base member 18 of the cranecarrying, upwardly extending, conventional conical support 20. Journalled on this support through the agency of balls 22 at the top thereof and rollers 24 at the bottom is a non-elevatable frame 26 of any conventional construction adapted to be powerfully rotated, around the vertical axis of conical member through the agency of a horizontally disposed pinion 30 traveling inside an internal gear 32 rising' from and rigid With the base 18. Said pinion 30 may be driven by any suitable means, the conventional mechanism for this purpose here shown being a vertical shaft 34 engaging at its lower end the pinion 30 and carrying atv its upper end the gear 86 meshing with the pinion 38 on a short vertical shaft carrying a bevel gear 40 meshing With the bevel pin-7 ion 42 on the horizontal shaft 44, Which in turn carries a gear 46 meshing with pinion 48 on shaft 50 driven by a conventional forni of independent electric motor 52 sup plied by means not here shown with electrical current in conventional manner. vBy manipulating this motor 52 by conventional electrical control. means, not entering into this invention, the operator can rotate the entire frame 26 and allattached parts, hereafter referred to. about the central axis of the stationary pillar or column 2O carried by the car.

Rigidly sustained on one side Iof the frame 26, the. connection being made by any conventional means, are tivo parallel trackivays, specifically I beams 54, adapted to be slidably engaged by a vertical bracket arm 56 with horizontal arm 58, made up of separated, parallel girders, which constitute the supporting` horizontal track of the cane proper. Rigidly attached to opposite sides of vertical member 56 of the bracket are guide plates 60, each carrying a centrally disposed Wheel 62, adapted to engage and travel upon the side of the adjacent upright member 54 which is nearest to the pedestal 20. These plates 60 also extend below the lower end of bracket members 56 and afford journal bearings for a horizontal shaft 64 carrying wheels 66 traversing the outside of upright 54, viz: the side which is opposite to that traversed by the wheel 62. The result of the construction just described is that the weight of bracket arm 56 and load carried thereon tends to rotate the entire bracket 56-58 in a clockwise direction, as viewed in Figure l, thus causing both sets of wheels 62 and 66 to take bearing upon their respective opposite sides of the upright guide 54, whereby the sets of wheels V62 and 64 serve as anti-frictiondevices supporting the entire bracket devices 56-58 on the upright support or guide 54, thus allowing the bracket and attached parts to move up and down said guide under proper power supplied for the purpose. The power for this desired result is obtained by mounting in any conventional manner intermediate between the upright I' beams 54 a vertical, lifting screw 68, traversing a screw threaded block 70 rigid with bracket member 56, said screw being equipped at itsA lowerend in conventional manner with a worm gear 7 2 meshing with a worm 74 on a horizontalv shaft 7 6A carrying a gear 7 8 meshing with pinion 80 on motor shaft 82, driven by a conventional form of electric motor 84, supplied with electric current and controly device therefor in conventional manner. When the operator runs the mo- 'tor 84 in one direction, he causes the. screw' 68' to rotate in such a direction that the crane bracket 56-58is elevated from the full line to the dotted line position of Figure l and, on reversing the motor, he returns the bracket to initial position. The horizontal arm 58 of the crane bracket is made up of two separated girders, as shown, forming at' their outer end a track 'for the conventional wheels 86 of crane trolley7 88, propelled by any suitable means backward and forward along said horizontal bracket armv 581 So far as this invention is conmotor 96 of conventional construction; l

while the` elevatingof hook 90 is controlled by another cable mechanism 98, manipulated through conventional gearing 100 d'riven by conventional motor 102, located on vertical bracket arm 58.

In the operation ofthe device, the entire mechanism is for traveling purposes assembled as shown in Figure l. When the scene of actual working has arrived and the operator through electrical control devices, not shown, operates one or more of the four motors, either separately o-r simultaneously as desired, to rotate the entire mechanism, about pillar 20, tov elevate the crane bracket from the full line to the dotted line position of Figure l to cause the trolley 88 totravel along the horizontal armi 58 of the bracket and to cause the load hook 90 to move up and down,

Having thus described my invention, what I claim as new and desire to secure .by Letters Patent is:

In mechanism of the class described, a base, a pillar rising from said base, 4a frame rotatably mounted on said pillar, a crane bracket, a pair of beams affixed to said bracket providing a trackway located en-V tirely to one side of said pillar and upon which the crane bracket is mounted `for vertical movement, and means between said beams and also between said pillar and said crane bracket for yeffecting vertical movement of the latter along said trackway.

In witness whereof, I have hereunto subscribed my name.

JOHN M. DEENIK.

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