US888805A - Guard for circular saws. - Google Patents

Description

' No. 888,805. PATBNTEDMAY 2 1908.

R. W. HOOD. GUARD FDR CIRCULAR 'sAWs,

II G. APPLICATION LED AU 2 1907 a BHnETS BHEET 1 Smmatar/ N0. 888,805. PATENTED MAY 26, 19.08;

R. W. HOOD,

GUARD FOR CIRCULAR SAWSL rum-non nun AUG. 2.1901.

2 SHEETS-SHEET B.

I I I amt/Mot attomgo faces of t TENT OFFICE.-

RICHARD W. HOOD, OF OARTERVILLE; MISSOURI.

GUARD FOR CIRCULAR SAWS.

Sp ecification of Letters Patent.

Patented May 26, 1908.

Application filed August 2, 1907. Serial No. 386,840.

To all whom it may concern:

Be it known that I, RICHARD W. H001), a citizen of the United States, residing at Carterville, in the county of Jasper and State of Missouri, have invented a new and useful Guard for Circular Saws, of which the following is a specification.

This invention relates to guards for circular saws and its object is to provide an adj ustable device of this character which can be conveniently placed in position over a saw and which constitutes an efficient means for preventing injury to the operator such as might result from accidental contact with the saw. 4

With these and other objects in view the invention consists of certain novel features of construction and combinations of parts which will be hereinafter more fully described and pointed out in the claims.

In the accompanying drawings is shown the preferred form of the invention.

In said drawings: Figure 1 is a side elevation of the guard, the same being shown in the osition assumed thereby after a board has been cut. Fig. 2 is an end elevation of I the guard. Fig. 3 is a longitudinal section therethrough. Fig. 4 is a section on line :tx, Fig. 3. 1 Referring to the figures by characters of reference, 1 desi nates a table having a circular saw 2 extending therethrough. A slot 3 is formed in the table and in alinement with the saw 2 and secured within this slot is an upstanding plate 4 constituting a standard for supporting the guard. This standard has a series of alining apertures 5 and is de signed to extend through a slot 6 extending through one end of the shield body 7. A pin 8 is insertible through the body and into any one of the openings 5 so as to lock the body at a desired elevation. Said body may be formed of any suitable material and that portion thereof extending over the saw has a recess 9 into which the saw is designed to project and rotate.

Wear lates 10 are secured upon the outer e body-7 near that end thereof farthest removed from standard 4 and these plates are designed to enga e guards 11 which are disposed upon the si e faces of the body and are pivotally connected to the body adjacent to standard 4 as shown at 12. These uards are preferably formed of metal lates aving straight upper edges while the j ower edges thereof are inclined from the pivots to points adjacent to the opposite ends of the plates. The guards extend beyond the front end of the body and are connected by a oposs strip 13 so that the two guards will move in unison.

Slidably mounted on the front end of the body is a front guard 14 having side flanges 15 designed to lap the body and this guard or slide has a londitudinal slot 16 through which projects a guide 17 in theform of a screw or other suitable device. A handle 18 extends forward from this slide and located at the lower end ofthe slide are laterally extending Wings 19 each of which has a notch 20 constituting a seat for one of the guards 1]. The wings 19 are preferably formed of a piece of metal soldered or otherwise secured to the slide 14 although it is to be understood that if preferred the wings may be formed in one piece with the slide. The front end of the body 7 is recessed longitudinally at the top thereof as indicated at 21 and secured within this recess is a leaf spring 22 from which projects a locking nose 28. This s ring projects above the body and, when s ide 14 is raised the locking nose is designed to spring into the slot 16 and secure the slide against movement. By pressing backward u on the spring 22, however, the nose can e withdrawn from engagement with the slide and the same ermitted to drop to its lowest positionu etaining hooks 24 are secured to the top of the body and lap the front end thereof and the slide 14 when raised is designed to project under these hooks and to be held thereby in engagement with the locking nose 23.

In using the device herein described the slide 14 is pushed upward until engaged by the catch formed by nose 23 and spring 22. This movement of the slide will cause guards 11 to swing upward on their pivots as indicated by dotted lines in Fig. 3. The body 7 is then adjusted vertically upon the stand ard 4 until its lower edge assumes a position about one-quarter or one-half an inch above the work to be sawed. The work isthen directed against the saw and after the end thereof passes from under the slide 14 said slide is released and will drop upon the table 1. The guards 11 will at the sametime assume positions upon the work and as the same passes the saw the guards will gradually move downward until they assume positions upon the wings 19. When the operation is to be repeated the handle 18 is pushed upward and will cause the slide 14 and the guards to again move to their raised position where they will be locked by nose 23. It will be seen that the guard is very simple,

guards pivotally mounted upon opposite faces of the body and detached from and normally supported by the wings.

3. In a device of the character described durable and efficient, and can be readily apthe combination with a support; of a saw plied, and will fully protect the operator.

What is claimed is:

1. In a device of the character described the combination with a receiving body adj ustably mounted upon the support, a front guard slidably mounted upon the body and having lateral wings,

side guards pivotally connected to the body irom and bearing upon but detached from the wings, and means engaging the front guard front for supporting all of the guards in raised positions.

body adjustably connected to the guard embracing and slidsaid guard receiving support, a front ably mounted upon the body,

support; of a saw having lateral wings, means for automatically engaging said guard to support it in raised position, connected side bars pivoted on op )osite faces of the body and detached ut normally bearing upon the wings, and means upon the body for engaging the guard to retain it in engagement with the securing means.

In testimony that I claim the foregoing as 2. In a device ofthe character described my own, I have hereto aflixed my signature the combination with a support; of a saw receiving body adjustablymounted on the support, a front guard slidably mounted on the body and having lateral wings, means for detachably engaging said guard to support it in raised position, and connected side in the presence of two witnesses.

RICHARD W. HOOD.

Witnesses J. G. OARMEAU W. T. FERGUSON.

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