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Publication numberUS1244187 A
Publication typeGrant
Publication dateOct 23, 1917
Filing dateFeb 17, 1917
Priority dateFeb 17, 1917
Publication numberUS 1244187 A, US 1244187A, US-A-1244187, US1244187 A, US1244187A
InventorsWarren M Frisbie
Original AssigneeWarren M Frisbie
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Circular-saw guard.
US 1244187 A
Abstract  available in
Images(2)
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Claims  available in
Description  (OCR text may contain errors)

W. M FRISBIE.

CIRCULAR SAW GUARD. APPLICATION FILED FEB. 11. I917.

1 2%,17B Patented oat; 23,1917.

2 SHEETS-SHEET 1.

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At-fto rne w. M, FRISBIE. CIRCULAR SAW GUARD. APPLICATION FILED FEB. H' 1917.

L%%,17 Patentad Oct. 23,1917.

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barren sra ras m caries.

WARREN 1V1. rnrsiarn, or YPSILANTI, MICHIGAN.

CIRCULAR-SAW Guano.

retailer. I

To all whom it may concern. I

Be it known that I, WARREN M. FRIsBIE, a citizen 01"- the Unlted States, residing at Ypsilanti, in the county of VVashtenaw and State of Michigan, have invented a new and useful Circular-Saw Guard, of which the following is a specification.

The present invention appertains to saw guards, and aims to provide a novel and improved device ofthat character for use in connection with circular saws. I

It'is the object of the invention to provide a circular saw guard embodying anov'el assemblage of the component elements, the device being adjustable tosuit the conditions and effectively serving its oliice of protecting the saw'and preventing injury either by objects thrown by the saw, or the accidental falling of a person over the saw.

lVith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the com-' bination andarrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made with in the scope of what is claimed without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawings, wherein Figure 1 is a side elevation of the device as applied.

Fig. 2 is an enlarged section on the line 2-2 of Fig. 1.

Fig. 3 is a sectional detail taken on the line 3-3 of Fig. 2.

Fig. 1 is an enlarged vertical section taken on the line H of Fig. 1.

Fig. 5 is a perspective view of the main guard member. 7

Fig. 6 is a fragmental perspective view of the secondary or auxiliary guard member.

In carrying out the invention, there is provided a sheet metal hanger plate 1 having a flange 2 extending at an angle from its upper end and adapted to be secured in any suitable manner to the bottom of the table 3 in rear of the circular saw 4. A slide plate 5 bears against one side of the hanger plate 1, and is provided with lips 6 struck therefrom and working in horizontal slots 7 with which the plate 1 is provided, whereby to guide the slide plate 5 for horizontal adjustments, the slots 7 being longer than Specification of Letters Patent.

side edges with outtu-rned guide flanges 8-.

Patented Got. 23, 191?.

Application filed. February 1?, 191?. Serial No. 149,249. i

fiat bracket 9is provided atits lower end with a depending flat shank l0 resting against the plate 5 and fitting slidably'betweenthe flanges 8. The bracket 9 is of semi-crescent shape, being curved forwardly so as to overhang the'saw. The

bracket 9- is disposed in the sameplaneasthe saw band projects upwardly above the table 3 to work in the slot or kerf cut in the wood :or stock by the saw. The shan'k 10 of the bracketis provided with a downwardly opening vertical slot 11 for receiving a bolt 12 extending through a central opening or aperture of the plate 5, and a horizontal elongated slot 12 of the plate 1. A nut 13 is threaded upon the bolt 12 to clamp the plates 1 and 5 and shank 10 together, .'suit able washers being used upon the bolt if desired. By loosening the nut 13, the slide plate 5 can beslid horizontally toward and away from thesawto adjust the bracket 9 I likewise, and the bracket can be adjusted vertically. lVhen the nut 13 is tightened, the parts are clamped in the positions to which they have been adjusted, it thus being possible to adjust the bracket 9 both horizontally and vertically in the plane of the saw 4.

Adjustably carried by the bracket 9 is a main guard member 14: of inverted U-shaped cross section, preferably constructed of sheet metal. The backor web portion of the member 14 is adapted to seat on .the upper curved edge of the bracket 9 with the flanges or wings of the member 1 1 depending at the opposite sides of the saw, whereby to provide the desired protection. One flange of the member lt is provided at one end with an extension 15 adapted to overlap one side of the bracket 9, and the corresponding end of the other flange of the member 14: has a tongue 16 offset toward the extension 15, said extension and tongue being provided at their free ends with apertures 16 receiving a bolt 17. The bracket 9 has a series of open slots or notches 18 extending 'from its upper and rearcurved edge for receiving the bolt 17 Thus, when the bolt 17 is loosened, the member 1-1 can be placed on the bracket 9 and moved longitudinally to move the bolt 17 into the desired slot or notch 18, the member 14 seating on the upper edge of the bracket 9.to hold it in thede- I sired position. The bolt 17 can then be tightened for clamping the member 14 in place, the bracket being clamped between the extension 15 and tongue 16. By placing the bolt 17 in the various slots 18, the anguhaving the extension 15 and tongue 16.

Thus, the hook 120 can be pivotally engaged downwardly through the slot 21, as seen in Fig. 1, with the flanges of the member 19 overlapping and depending from the flanges of the member 1% to ride on the material being cut. The member 19 can be applied and removed readily, and is swingable vertically to coeperate with the member 1a to properly protect the saw.

The various parts are constructed chiefly of sheet metal, being simple and inexpensive to manufacture, and the parts can be readily assembled and applied.

Having thus described the invention, what is claimed as new is:

1, A saw guard embodying an upwardly projecting bracket having a curved upper edge and a series of guard engaging portions, and a guard member seatable slidably on said upper edge and having means engageable with said portions to hold the guard member in various angular positions.

A saw guard embodying an upwardly projecting bracket having a curved upper edge provided with notches, and a guard member seating slidably on said upper edge and having means engageable in said notches for pivotally connecting the guard member with the bracket so that the guard member seats on said upper edge of the bracket.

3. A saw guard embodying main and secondary guard members each of inverted U- shaped section, means for supporting the main guard member, the secondary guard member straddling the main guard member, the main guard member having a slot near one end, and the secondary guard member having a hook engaging through said slot to pivotally connect it with the main guard member.

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

WARREN M. FRISBIE.

Witnesses:

W. 'L. PUTNAM, TRAOEY L. Townes.

Copies of this patent may be obtained for five cents each, by addressing the Gommissioner of Patents, Washington, D. G.

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US7137326Aug 13, 2001Nov 21, 2006Sd3, LlcTranslation stop for use in power equipment
US7137327 *Nov 23, 2004Nov 21, 2006Black & Decker Inc.Riving knife assembly for a dual bevel table saw
US7171879Jul 2, 2002Feb 6, 2007Sd3, LlcDiscrete proximity detection system
US7210383Aug 13, 2001May 1, 2007Sd3, LlcDetection system for power equipment
US7225712Aug 13, 2001Jun 5, 2007Sd3, LlcMotion detecting system for use in a safety system for power equipment
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US7284467Aug 13, 2001Oct 23, 2007Sd3, LlcApparatus and method for detecting dangerous conditions in power equipment
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US7308843Aug 13, 2001Dec 18, 2007Sd3, LlcSpring-biased brake mechanism for power equipment
US7347131Jun 2, 2006Mar 25, 2008Sd3, LlcMiter saw with improved safety system
US7347851Mar 9, 2004Mar 25, 2008Leo B KriksunovNeedleless hypodermic jet injector apparatus and method
US7350444Aug 13, 2001Apr 1, 2008Sd3, LlcTable saw with improved safety system
US7350445Aug 20, 2004Apr 1, 2008Sd3, LlcBrake cartridge for power equipment
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US7357056Jul 25, 2005Apr 15, 2008Sd3, LlcCutting tool safety system
US7359174Aug 18, 2006Apr 15, 2008Sd3, LlcMotion detecting system for use in a safety system for power equipment
US7421315Jul 17, 2006Sep 2, 2008Sd3, LlcDetection system for power equipment
US7437981 *Nov 21, 2005Oct 21, 2008Robert Bosch GmbhModular guard system and apparatus for a power saw
US7472634Aug 20, 2004Jan 6, 2009Sd3, LlcWoodworking machines with overmolded arbors
US7481140Apr 15, 2005Jan 27, 2009Sd3, LlcDetection systems for power equipment
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US7525055Apr 11, 2006Apr 28, 2009Sd3, LlcSwitch box for power tools with safety systems
US7536238Dec 31, 2004May 19, 2009Sd3, LlcDetection systems for power equipment
US7540223 *Mar 11, 2005Jun 2, 2009Makita CorporationMountings for riving knives of table saws
US7591210Feb 5, 2007Sep 22, 2009Sd3, LlcDiscrete proximity detection system
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US7600456Nov 29, 2006Oct 13, 2009Robert Bosch GmbhModular guard system for a power saw
US7621205Sep 2, 2005Nov 24, 2009Sd3, LlcBand saw with safety system
US7681479Jun 4, 2007Mar 23, 2010Sd3, LlcMotion detecting system for use in a safety system for power equipment
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US7827893Mar 14, 2007Nov 9, 2010Sd3, LlcElevation mechanism for table saws
US7832314Jun 11, 2007Nov 16, 2010Sd3, LlcBrake positioning system
US7836804Dec 29, 2006Nov 23, 2010Sd3, LlcWoodworking machines with overmolded arbors
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US7895927May 19, 2010Mar 1, 2011Sd3, LlcPower equipment with detection and reaction systems
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US7991503May 18, 2009Aug 2, 2011Sd3, LlcDetection systems for power equipment
US8037792Apr 22, 2009Oct 18, 2011Makita CorporationMountings for riving knives of table saws
US8061245Nov 8, 2004Nov 22, 2011Sd3, LlcSafety methods for use in power equipment
US8065943Oct 24, 2005Nov 29, 2011Sd3, LlcTranslation stop for use in power equipment
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
US8087438May 3, 2010Jan 3, 2012Sd3, LlcDetection systems for power equipment
US8100039Apr 19, 2010Jan 24, 2012Sd3, LlcMiter saw with safety system
US8122807May 3, 2010Feb 28, 2012Sd3, LlcTable saws with safety systems
US8127648Jul 31, 2008Mar 6, 2012Robert Bosch GmbhTable saw guard system
US8151675Mar 31, 2011Apr 10, 2012Sd3, LlcLogic control for fast-acting safety system
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US8191450Aug 20, 2010Jun 5, 2012Sd3, LlcPower equipment with detection and reaction systems
US8196499Aug 20, 2010Jun 12, 2012Sd3, LlcPower equipment with detection and reaction systems
US8408106Apr 9, 2012Apr 2, 2013Sd3, LlcMethod of operating power equipment with detection and reaction systems
US8459157Dec 31, 2004Jun 11, 2013Sd3, LlcBrake cartridges and mounting systems for brake cartridges
US8489223Dec 23, 2011Jul 16, 2013Sd3, LlcDetection systems for power equipment
US8498732Dec 19, 2011Jul 30, 2013Sd3, LlcDetection systems for power equipment
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US9038515Aug 29, 2013May 26, 2015Sd3, LlcLogic control for fast-acting safety system
US9254580 *Sep 15, 2009Feb 9, 2016Robert Bosch GmbhGuard system for a power saw
US9522476Aug 20, 2010Dec 20, 2016Sd3, LlcPower equipment with detection and reaction systems
US20020017175 *Aug 13, 2001Feb 14, 2002Gass Stephen F.Translation stop for use in power equipment
US20020017178 *Aug 13, 2001Feb 14, 2002Gass Stephen F.Motion detecting system for use in a safety system for power equipment
US20020017179 *Aug 13, 2001Feb 14, 2002Gass Stephen F.Miter saw with improved safety system
US20020017180 *Aug 13, 2001Feb 14, 2002Gass Stephen F.Brake mechanism for power equipment
US20020017181 *Aug 13, 2001Feb 14, 2002Gass Stephen F.Retraction system for use in power equipment
US20020017182 *Aug 13, 2001Feb 14, 2002Gass Stephen F.Brake positioning system
US20020017183 *Aug 13, 2001Feb 14, 2002Gass Stephen F.Cutting tool safety system
US20020020262 *Aug 13, 2001Feb 21, 2002Gass Stephen F.Logic control for fast-acting safety system
US20020020263 *Aug 13, 2001Feb 21, 2002Gass Stephen F.Firing subsystem for use in a fast-acting safety system
US20020020271 *Aug 13, 2001Feb 21, 2002Gass Stephen F.Spring-biased brake mechanism for power equipment
US20020056348 *Jan 14, 2002May 16, 2002Gass Stephen F.Miter saw with improved safety system
US20020056349 *Jan 14, 2002May 16, 2002Gass Stephen F.Miter saw with improved safety system
US20020056350 *Jan 16, 2002May 16, 2002Gass Stephen F.Table saw with improved safety system
US20020059853 *Jan 16, 2002May 23, 2002Gass Stephen F.Power saw with improved safety system
US20020059855 *Jan 16, 2002May 23, 2002Gass Stephen F.Miter saw with improved safety system
US20020066346 *Jan 15, 2002Jun 6, 2002Gass Stephen F.Miter saw with improved safety system
US20020170399 *Mar 13, 2002Nov 21, 2002Gass Stephen F.Safety systems for power equipment
US20020170400 *May 15, 2002Nov 21, 2002Gass Stephen F.Band saw with improved safety system
US20030015253 *Jul 18, 2002Jan 23, 2003Gass Stephen F.Router with improved safety system
US20030019341 *Jul 25, 2002Jan 30, 2003Gass Stephen F.Safety systems for band saws
US20030037651 *Aug 9, 2002Feb 27, 2003Gass Stephen F.Safety systems for power equipment
US20030056853 *Sep 20, 2002Mar 27, 2003Gass Stephen F.Router with improved safety system
US20030058121 *Sep 13, 2002Mar 27, 2003Gass Stephen F.Logic control with test mode for fast-acting safety system
US20030090224 *Nov 12, 2002May 15, 2003Gass Stephen F.Detection system for power equipment
US20030131703 *Jan 15, 2003Jul 17, 2003Gass Stephen F.Apparatus and method for detecting dangerous conditions in power equipment
US20030140749 *Jan 13, 2003Jul 31, 2003Gass Stephen F.Brake Pawls for power equipment
US20040040426 *Aug 18, 2003Mar 4, 2004Gass Stephen F.Miter saw with improved safety system
US20040163514 *Feb 23, 2004Aug 26, 2004Gass Stephen F.Safety systems for power equipment
US20040173430 *Mar 4, 2004Sep 9, 2004Gass Stephen F.Retraction system and motor position for use with safety systems for power equipment
US20040255745 *Jun 23, 2003Dec 23, 2004One World Technologies LimitedTable saw guard assembly
US20050039586 *Aug 20, 2004Feb 24, 2005Gass Stephen F.Brake cartridges for power equipment
US20050041359 *Aug 20, 2004Feb 24, 2005Gass Stephen F.Motion detecting system for use in a safety system for power equipment
US20050139051 *Feb 18, 2005Jun 30, 2005Gass Stephen F.Brake positioning system
US20050139057 *Dec 31, 2004Jun 30, 2005Gass Stephen F.Table saws with safety systems
US20050139058 *Dec 31, 2004Jun 30, 2005Gass Stephen F.Brake cartridges and mounting systems for brake cartridges
US20050139459 *Dec 31, 2004Jun 30, 2005Gass Stephen F.Switch box for power tools with safety systems
US20050155473 *Dec 31, 2004Jul 21, 2005Gass Stephen F.Dectection systems for power equipment
US20050178259 *Apr 4, 2005Aug 18, 2005Gass Stephen F.Miter saw with improved safety system
US20050204885 *Sep 1, 2004Sep 22, 2005Gass Stephen FMiter saw with improved safety system
US20050211034 *Mar 11, 2005Sep 29, 2005Makita CorporationMountings for riving knives of table saws
US20050252187 *Jul 25, 2005Nov 17, 2005Gass Stephen FCutting tool safety system
US20050274432 *Aug 19, 2005Dec 15, 2005Gass Stephen FRouter with improved safety system
US20060000337 *Sep 2, 2005Jan 5, 2006Gass Stephen FBand saw with safety system
US20060032352 *Oct 24, 2005Feb 16, 2006Gass Stephen FTranslation stop for use in power equipment
US20060123960 *Feb 13, 2006Jun 15, 2006Gass Stephen FSafety systems for power equipment
US20060123964 *Feb 6, 2006Jun 15, 2006Gass Stephen FTable saw with improved safety system
US20060247795 *Apr 15, 2005Nov 2, 2006Gass Stephen FDetection systems for power equipment
US20070056153 *Sep 8, 2006Mar 15, 2007Reinhold OpperFastening apparatus and method with compensation for load-induced deformation of supporting frame
US20070113714 *Nov 21, 2005May 24, 2007Credo Technology Corporation And Robert Bosch GmbhModular guard system and apparatus for a power saw
US20070113715 *Nov 29, 2006May 24, 2007Credo Technology CorporationModular guard system for a power saw
US20070157784 *Feb 23, 2007Jul 12, 2007Gass Stephen FTable saws with mounting brackets for splitters or riving knives
US20070163408 *Jan 17, 2006Jul 19, 2007Buck William CTable saw guard
US20070186739 *Feb 16, 2006Aug 16, 2007Eastway Fair Company Limited Of Trident ChambersRiving knife clamp for a table saw
US20070186741 *Mar 27, 2007Aug 16, 2007Buck William CTable saw guard assembly
US20080276780 *May 11, 2007Nov 13, 2008Bor-Yann ChuangCombining device for the chopper set of a table sawing machine
US20090090627 *Jul 31, 2008Apr 9, 2009Andelman Marc DMethod of providing a charge barrier flow-through capacitor system
US20090205472 *Apr 22, 2009Aug 20, 2009Makita CorporationMountings for riving knives of table saws
US20090314148 *Jun 20, 2008Dec 24, 2009Gass Stephen FTable saw blade guards and blade guard assemblies including lateral blade guards, and table saws including the same
US20110061506 *Sep 15, 2009Mar 17, 2011Credo Technology CorporationGuard system for a power saw
Classifications
U.S. Classification83/860
International ClassificationB27G19/02
Cooperative ClassificationB27G19/02
European ClassificationB27G19/02