US660481A - Saw-guard. - Google Patents

Description

No. 660,48l. Patented Oct. 23, |900.'

H. ,1. Anml'um.`

SAW GUARD.

plication led Feb. 9, 1900 N 0 M 0 d B l.)

l IHIIIININUJI ////f ff UNITED STATES PATENT OFFICE.

HERMAN J. BARNARD, OF INDIANAPOLIS, INDIANA.

SAW-GUARD.

SPECIFICATION forming part of Letters Patent No. 660,481, dated October 23, 1900.

Application filed February 9, 1900. Serial No.` 4,667. (No model.)

T LZZ wwnt it may concern,.-

citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Saw-Guard, of which the following is a specification. n

'The invention relates to improvements in saw-guards.

The object of the present invention is to improve the construction of saw-guards and to provide a simple, inexpensive, and eflicient one hich will be detachably and securely mounted on a bench or other suitable support and which will be capable of ready adjustment to arrange its hood in the desired position relative to the saw.

The invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure I is a side elevation of a saw-guard constructed in accordance with this invention. Fig. 2 is a vertical sectional view. Fig. 3 is a detail perspective view of the base-plate and the key. Fig. 4 is a detail perspective view of the removable standard or arm. Fig. 5 is a detail view of the shank of the adjustable support. Fig. 6 is a detail sectional view showing another means for retaining the lug of the arm or standard in engagement with the lugs of the base-plate.

Like numerals of reference designate corresponding parts in all the figures of the drawings.

l designates a base-plate designed to be secured in a recess 2 of a saw bench or table 3, with its upper face flushwith the upper face of the table or bench7 as clearly illustrated in Figs. l and 2 of the accompanying drawings, and it is provided with perforations 4 for the reception of screws or other suitable fastening devices for securing it to the said bench or table. The plate 1 is provided at its outer edge with a pair of lugs 5, having their upper faces located in a plane below the upper face of the plate 1 and provided with inwardly-converging inclined faces 6, forming a dovetailed socket or recess for engaging a dovetailed boss or lug 7, arranged at the inner face of a lower enlarged. portion of. an inclined arm or standard S. The lug or boss 7 of the standard or arr 8 has downwardlyconverging or inclined end walls which also converge inwardly, whereby the arm or standard is interlocked with the plate and is held against downward or outward movement and can be disengaged from the same by an upward movement only. The lower enlarged portion of the arm or standard is provided with horizontal flanges 8, which fill the spaces at the top of the lugs 5 and which have their upper faces Hush with the upper face of the plate 'l when the parts are assembled. The lower enlarged portion of the arm or standard may be formed Vintegral with the same, or it may consist of a separate piece, as clearly shown at 9 in Fig. 2 of the drawings.

The upper face of the boss or lug is provided with a recess 10, having an inclined bottom and arranged to be engaged by a beveled or inclined portion l2 of a key 13, which ,is arranged to slide in a dovetailed groove 14 of the upper face of the plate l. The key has oppositely-beveled edges to interlock with undercut edges or walls of the dovetailed groove 14, which is arranged in alinement with the recess 10, and when the key is engaged with the lug o r boss 7, as clearly illustrated in Fig. 2 of the drawings, the arm or standard is securely locked in its engagement with the plate l. The sliding key is provided with a slot 16 and is secured at any desired adjustment by a screw l7,passing through the slot and engaging the key, as clearly shown in Fig. 2. The beveled or inclined faces of the lug or boss and the key enable the parts to be clamped perfectly tight.

The arm or standard is provided with a series of perforations 18, adapted to receive a pivot 19 of an adjustable support 20, which carries a hood 2l, located above a circular saw 22, as clearly shown in Fig. 1 of the drawings. The adjustable support 20 is provided with a straight slotted shank 23, the longitudinal slot 24 being adapted to receive the arm or standard, as clearly shown in Fig. 2, and the said shank or bar is provided near its rear end with a perforation for the reception of the pivot 19, whereby the support may be swung upward and downward. The arm or standard is provided near its front edge IOS) witha double seriesof perforations25,adapted to receive a key 26, located beneath the adjustable support,A as clearly shown in Fig. 1. By means of the pin 26 and the perforations 25 the adjustable support may be swung upward or downward and secured at the desired adjustment. The perforations 18 permit the pivot-bolt of the support to be raised and lowered independently of the adjustment of the pin 26.

In Fig. 6 of the drawings is illustrated a slight modification of the invention, the boss or lug of the arm or standard being retained in engagement with the lugs of the base-plate by means of a disk or washer 29, which overlaps the joint and which is preferably seated in recesses of the adjacent part, so that its upper face will be flush with the upper face ot' the. base-plate andthe block or piece to which the arm or standard is riveted or otherwise fastened. The disk or washer, which is provided with a central opening, is secured by a screw 30, engaging a threaded socket of the base-plate, as illustrated in Fig. 6.

The adjustable support. is provided with a supporting portion or shoe 27, which receives the hood 21, and the latter is capable of longitudinal adjustment on the supporting portion or shoe 27 and is secured at the desired adjustment by a screw 28 or other suitable fastening device arranged as shown in Fig. 1.

It will be seen that the saw-guard, which is simplel and comparatively inexpensive in construction, is adapted to be readily mounted upon and removed from a saw bench or table and that its hood is capable of adjustment to, position it properly with relation to a saw. It will also be seen that the hood wi/ll prevent the hand ofa person from coming inv contact with the saw and also prevent a stick or board from falling directly upon the said saw and that the standard 8 serves to shield the saw and prevent a stick or board from falling on the same.

What is claimed is- 1. A device of the class described comprising a horizontal plate provided at its outer end with oppositely-beveled lugs forming a dovetailed recess, an arm or standard provided with a lug` beveled at itsside edges and fitting between the said lugs, said standard being also provided with horizontal flanges engaging the upper faces of the lugs of the plate, and a locking device located at the npper face of the plate and engaging the upper face of the lug of the standard, substantially as described.

2. A device of the class described comprising a horizontal plate provided with a recess and havingagroove atits upper face, a standard having a lug fitting in the recess, a sliding key arranged at the upper face of the plate and interlocked with the grooves thereof and engaging the upper face of the lug of the standard, and a support mounted on the standard and carrying a hood, substantially as described.

3. A device of the class described comprising a horizontal plate provided with a recess, astand ard having a lug arranged in the recess of the plate and having its upper face beveled, a key arranged at the upper face of the plate and interlocked with the same and havingits outer end beveled and engaging the beveled portion of the lug, whereby the latter is forced downward into the recess, and a hood, substantially as described.

4. A device of the class described comprising a plate provided with lugs forming a recess, a standard havinga lug titted in the recess, a locking device arranged at the upper faces of the plate and the lug of the standard and letinto both of said parts, and a hood,

rsubstantially as described.

5. Adevice of the class described comprising a plate provided with lugs, a standard having a lug to fit between the lugs of the plate and provided with horizontal flanges located at opposite sides ot' the lug ot' the standard and engaging the upper faces of the lugs of the plate, and a locking device arranged at the upper faces of the plate and the lug of the standard and having its upper face flush with the upper faces of the same, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses. I

HERMAN J. BARNARD.

Witnesses:

WM. DowNEY, LUoIAN L. GREEN.

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