Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
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)
Previous page
Next page
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.

I ie

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

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

z shins-sum 2.

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.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6405624 *Jul 8, 1998Jun 18, 2002Delta International Machinery Corp.Splitter and cutting member guard assembly
US6857345Aug 13, 2001Feb 22, 2005Sd3, LlcBrake positioning system
US6877410Jan 15, 2002Apr 12, 2005Sd3, LlcMiter saw with improved safety system
US6920814Aug 13, 2001Jul 26, 2005Sd3, LlcCutting tool safety system
US6945149Jul 25, 2002Sep 20, 2005Sd3, LlcActuators for use in fast-acting safety systems
US6997090Feb 23, 2004Feb 14, 2006Sd3, LlcSafety systems for power equipment
US7024975Aug 13, 2001Apr 11, 2006Sd3, LlcBrake mechanism for power equipment
US7055417Sep 29, 2000Jun 6, 2006Sd3, LlcSafety system for power equipment
US7100483Aug 13, 2001Sep 5, 2006Sd3, LlcFiring subsystem for use in a fast-acting safety system
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
US7228772Feb 18, 2005Jun 12, 2007Sd3, LlcBrake positioning system
US7284467Aug 13, 2001Oct 23, 2007Sd3, LlcApparatus and method for detecting dangerous conditions in power equipment
US7290472Sep 1, 2004Nov 6, 2007Sd3, LlcMiter saw with improved safety system
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
US7353737Apr 4, 2005Apr 8, 2008Sd3, LlcMiter saw with improved safety system
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
US7509899Aug 13, 2001Mar 31, 2009Sd3, LlcRetraction system for use in power equipment
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
US7600455Aug 13, 2001Oct 13, 2009Sd3, LlcLogic control for fast-acting safety system
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
US7707920Dec 31, 2004May 4, 2010Sd3, LlcTable saws with safety systems
US7712403Jul 2, 2002May 11, 2010Sd3, LlcActuators for use in fast-acting safety systems
US7784507Aug 19, 2005Aug 31, 2010Sd3, LlcRouter with improved safety system
US7788999Apr 10, 2006Sep 7, 2010Sd3, LlcBrake mechanism for power equipment
US7827890Jan 28, 2005Nov 9, 2010Sd3, LlcTable saws with safety systems and systems to mount and index attachments
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
US7866239Mar 14, 2007Jan 11, 2011Sd3, LlcElevation mechanism for table saws
US7895927May 19, 2010Mar 1, 2011Sd3, LlcPower equipment with detection and reaction systems
US7921754Oct 9, 2009Apr 12, 2011Sd3, LlcLogic control for fast-acting safety system
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
US8186255Nov 16, 2009May 29, 2012Sd3, LlcContact detection system for power equipment
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
US8505424Nov 8, 2010Aug 13, 2013Sd3, LlcTable saws with safety systems and systems to mount and index attachments
US8522655Apr 9, 2012Sep 3, 2013Sd3, LlcLogic control for fast-acting safety system
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