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Publication numberUS713196 A
Publication typeGrant
Publication dateNov 11, 1902
Filing dateMay 6, 1902
Priority dateMay 6, 1902
Publication numberUS 713196 A, US 713196A, US-A-713196, US713196 A, US713196A
InventorsWilliam B Bennett
Original AssigneeWilliam B Bennett
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 713196 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

No. 7\3,\96. Patented Nov w. B. BENNETT. A

SAW GUARD. (Application led May 6, 1902.)

(No Modem 'NITED STATES viPnfrnNr FFICE.



SPECIFICATION forming part of Letters Patent No. 713,196, dated November 11, 1902.

Application filed May 6, 1902. Serial No. 106,182. (No model.)

To @llink/0711, it may concern:

Be it known that I, WILLIAM B. BENNETT, a citizen of the United States, residing at Grand Rapids, in the county of Kent andz device adapted to be readily appliedto a saw,

and capable of protecting the saw and of pre- Venting the dust from flying into the face and eyes of the operator.

A further object of the invention is to increase the strength and durability of sawgnards and to enable the same to be readily adjusted to aline them properly with a saw and to provide simple and efficient means for spreading the material to prevent the same from pinching the saw.

Another object of the invention is to provide a spreading device of this character which will permit the material to be readily drawn backward without catching upon it or the saw.

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

In the drawings, Figure 1V is a perspective View of a saw-guard constructed in accordance with this invention and shown appliedA to a saw. Fig. 2 is a longitudinal sectional View, the spreader being shown in elevation. Fig. 3 is a detail sectional'view on the line 3 3 of Fig. 2, illustrating the construction of the front and rear edges of the spreader. 4 is a detail View of the adjustable clamp or holder. Y

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

l designates a hood or saw-guard proper, forming a cap for a saw 2, adapted to prevent anything from falling upon the saw and capable also of keeping the dust from the face of the operator, and the said guard, which is provided with sides or flanges, is supported I at the rear by transverse lugs 4 and 5, which are bifurcated for the reception of the upper end of the spreader 6; The bifurcation 7 of the lug 5 forms a shoulder, which rests upon the upper endof the spreader, and the rear lug and the sidesof the guard are perforated for thereception of an adjusting-screw 8, which also passes through a perforation 9 of the spreader. The slot or bifurcation of the rear lugV extends to within a short distance of the top of the guard, and the perforation at one side of the .lug 4 is threaded for the reception'of the threaded portion of the screw Si,n which is adapted torcompress the sides of the lugs sufficiently to cause the hood to bind against the upper end of the spreader, whereby the hood is effectually prevented from vibrating. By preventing the hood from Vibratingthe upper end of the parts are also prevented from wearing out at the perforation 9. The bolt o1' screw 8 pivots the guard to the spreader, and it may be readily loosened to permit the hood or guard to be swung backward from over the saw. The upper portion of the spreader is tapered, as clearly shown in Fig. 2 of the drawings, and the slots or bifurcations of thelngs 4 and 5 form aseat for the spreader.

' The spreader, which consists of a thin steel blade, is provided at its upper portion with a front oppositely-beveled edge 11, which is adapted to readily enter the kerf cut by the saw in the material, and it will spread the said material and prevent the same from pinching the saw. The rear edge 12 of the upper portion of the spreader is rounded or beveled to prevent the spreader from catching the material should the latter be drawn backward from the sawbefore completing the cut.,

The lower portion 13 of the spreader is provided with a slot or bifurcation 14 and is engaged by a clamp or holder which is adjustably secured to a saw-table 16. The clamp or holder consists of an upright plate 15 and a jaw 17, consisting of a plate having inclined front and rear flanges. 18 and arranged at an inclination. The plate 15 is provided with a longitudinal slot 19, and the front and rear inclined anges 18 have tongues or projections 20, extending into the horizontal slot 19 and preventing the jaw from rotatingon ICD the clamping-bolt 2l. The clamping-bolt 2l is provided with a thumb-nut 22, and it extends through the slot or bifurcation I4 of the lower portion of the spreader. The jaw is provided with a block 23 of wood or other suitable material which engages the inner face of the lower portion of the spreader and offsets the jaw from the plate to cause the former to clear the saw, which operates close to the upper portion of the jaw at the front of the same.

The plate is provided at its top with a horizontal flange 24, having slots 25 arranged transversely of it and extending to the edge of the flange and receiving bolts or other suitable fastening devices for securing the clamp or holder to the saw-table. By this construction the clamp or holder may be readily adjusted to aline the spreader properly with the saw. The longitudinal slot 19 permits the clamping-jaw to be adjusted backward and forward on the plate l5, and the clamp permits the spreader to be adjusted to raise and lower the hood, while the slots 25 permit any lateral adjustment of the saw-guard. The hood is also adapted to prevent the material being cut from rising and getting upon the top of the saw.

Vhat I claim isl. A saw-guard forming a cap and consisting of atop and sides and provided at its rear portion with bifurcated lugs located between the sides, and a spreader pivoted in the slot or bifurcation of one lug and extending into the slot or bifurcation of the other lug and supporting the hood, substantially as described.

2. A saw-guard comprising a hood, a spreader supporting the hood, an adjustable plate, and a clamp receiving the spreader and provided with side flanges slidably interlocked with the adjustable plate, substantially as described.

3. A saw-guard comprising an adjustable plate having a slot, a clamp provided with side flanges having tongues extending into the slot, a spreader arranged in the clamp, a fastening device operating in the said slot and holding the clamp in engagement with the spreader and securing the said clamp to the adjustable plate, and a hood supported by the spreader, substantially as described.

4. A saw-guard comprising an adjustable plate having a slot, a clamp provided with side flanges having tongues extending into the slot, a spreader arranged in the clamp, a block also located in the clamp and interposed between the spreader and the adjustable plate, a fastening device operating in the slot and connecting the clamp the block and the plate and securing the spreader in its adjustment, and a hood supported by the spreader, 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.




Referenced by
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US4721023 *Jun 20, 1986Jan 26, 1988Shopsmith, Inc.Saw guard system
US7437981Nov 21, 2005Oct 21, 2008Robert Bosch GmbhModular guard system and apparatus for a power saw
US7540223 *Mar 11, 2005Jun 2, 2009Makita CorporationMountings for riving knives of table saws
US7600456Nov 29, 2006Oct 13, 2009Robert Bosch GmbhModular guard system for a power saw
US7806032Aug 8, 2007Oct 5, 2010Robert Bosch GmbhTable saw guard system side barrier
US7814818Aug 8, 2007Oct 19, 2010Robert Bosch GmbhModular table saw guarding system riving knife release mechanisms
US7921755 *Jul 8, 2008Apr 12, 2011Black & Decker Inc.Guard assembly for table saw
US8037792Apr 22, 2009Oct 18, 2011Makita CorporationMountings for riving knives of table saws
US8079295Jun 20, 2008Dec 20, 2011Sd3, LlcTable saw blade guards and blade guard assemblies including lateral blade guards, and table saws including the same
US8082825Jun 9, 2009Dec 27, 2011Butler David JHealth and safety system for a table saw
US8082826Mar 25, 2008Dec 27, 2011Power Tool InstituteSaw accessories and clamp for use therewith
US8091456Mar 25, 2008Jan 10, 2012Power Tool InstituteSafety devices for saws
US8096220Aug 8, 2007Jan 17, 2012Robert Bosch GmbhModular table saw guarding system upper guard barrier
US8127648Jul 31, 2008Mar 6, 2012Robert Bosch GmbhTable saw guard system
US8245614 *Mar 8, 2011Aug 21, 2012Black & Decker Inc.Guard assembly for table saw
US20050211034 *Mar 11, 2005Sep 29, 2005Makita CorporationMountings for riving knives of table saws
US20060096428 *Mar 15, 2004May 11, 2006Garcia Jaime ERiving knife assembly
US20070074613 *Oct 4, 2005Apr 5, 2007Ben YuWorktable having adjustable shield
US20100319509 *Jun 22, 2009Dec 23, 2010Bor-Yann ChuangQuick release device for a chopper in a workbench sawing machine
Cooperative ClassificationB27G19/02