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Publication numberUS1050649 A
Publication typeGrant
Publication dateJan 14, 1913
Filing dateMay 28, 1910
Priority dateMay 28, 1910
Publication numberUS 1050649 A, US 1050649A, US-A-1050649, US1050649 A, US1050649A
InventorsElmer Harrold, Clinton G Wilderson
Original AssigneeCrescent Machine Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Saw-guard.
US 1050649 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

E. HARROLD & C. G. WILDERSON. SAW GUARD. `APPLIOATION FILED HAY 28, 1910.

1,050,649. Patented Jan. 14, 1913.-

C. mm, "M-@Mmwd' UTED STA PATENT orrion.

ELMER HARROLD AND CLINTON G. WILDERSON, OF LEETONIA, OHIO, ASSIGNORS TO THE CRESCENT MACHINE COMPANY, OF LEETONIA, OHIO, A CORPORATION OF OHIO.

SAW-GUARD.

Specicaton of Letters Patent.

Patented Jan. 14,1913.

Application filed May 28, 1910. Serial No. 564,014.

ing the connection between the shoe supporting member and the supporting arm therefor; and Fig. i is a detail view of the connection between t-he shoe and the supporting member therefor. v

Our invention has relation to saw guards, and is` designed to provide a simple, convenient, and efficient form of guard which can be readily attached to various forms of saw tables, either fixed or tilting; and which, when applied to a tilting table will not interfere with the operation of such table. Also to provide a guard which will completely cover the saw and prevent the 'possibility of getting the hands or any part of thebodyain contact therewith, and which will also prevent strips of Wood being thrown by get-ting on to the saw.

A still further object is to provide a shoe of this kind -which is readily adjustable as far forward or backward on the table as. may bedesired; and which can be swung backwardly entirely out of 4the way when not desired for use.

The nature of our invention will behest understood by reference to the accompanying drawings, in which we have shown a preferred embodiment thereof, and which will now be described, it being premised, however, that various changes can be mada` in the details of construction and arrangement of the parts by those skilled in the art without departing from the spirit and scope of our invention as defined in the appended claims.

In thesedrawings, the numeral 2 desig-l nates a saw table, and 3 a saw.

4 is a shoe, which is preferably made of wood, although not necessarily, and which is formed with a vertical, longitudinal slot 4a. This shoe is closed at the top, and tits over the saw in the i'nanner shown in Fins. l and 2, completely covering the saine.

Rigidly secured to one side ofthe shoe is a metal flange or plate 5, which is provided with a central bolt" or pin hole, and with two projecting lugs G.

7 is a huhmenber, which is provided with an eye portion which loosely fits apin or holt 8 insertedtherethrough and into the member 5, and wllich salso provided witha sleeve or socket port-ion 9 to tit the end of a supporting bar or arm 10. The hub member is also provided with a lug T, which extends between the twollugs 6 to limit the pivotal movement ot' the shoe Vwith reference to the hub member. The bar lor arm l0 is .adjustably secured at its upper rear end portion in a hub member 11, which is pivotally supported on the end portion of. an overhanging goose-neck bar or rod 12. This bar or rod is secured at its lower end in a bracket 13, which is rigidly secured to the frame of the machine. is provided with a stop lug 1l, which is arranged to engage the projecting stop lug l1b of a collar 11c secured to the arm 12, when the bar 10 and shoe 4- are swung up wardly and backwardly out of use, into thel position shown in dotted lines in Fig. 1.

The operation of the device will be apparent. The shoe 4 completely covers the saw, but will readily move upwardly to permit the passage thereunder of the piece being sawed, by reason of its pivotal engagement with the pin or bolt 8. The front end of the shoe is undercut. or beveled backwardly, as shown atl db, so that as the piece to be sawed is shoved underneath the same, the front end of the shoe will rst rise slightly. and then the whole shoe will lift by parallel movement, The pivotal connection on thepin or bolt 8 gives suicient flexibility to the shoe, while the provisionof the stop lugs 6 prevents undue movement of the shoe.

vWhen it 'is not desired to use the guard, itmay be thrown upwardly and backwardly into the position shown in dotted lines in Fig. 1, the stop lug 11 engaging the stop lug 11'*V of the collar 11c to hold the shoe in this position. By loosening the set screw which secures the upper end portion ot the member 10 in the hub member 1l. it will'be olivious that the shoe may be adjusted as for forxvardly or hackwardlx of the ta'hlc as may lic desired. This is a feature of sliiccial The hub member 11 t miportance in connection with saws ein-,U0

ploying two mandrels, each carrying a saw, and so arranged that either saw can be brought up into working position.

It will be obviousr that the details of the device may be .changed in many particulars without departing from our invention. Thus, the forni of the supporting bar or arm l2 and the exact means of attaching it to the traine of the saw may be varied to suit the particular foi-1n of saw table to which the device is to be applied. Changes ma)Y also be inadc in the details of the connections between the shoe and its support.

Wvhat we claiin ist-- 1. A saw guard comprising a frame in back of tliesaw, a shoe adapted to lit over the saw and rest on the saw table, a support pivoted to the frame and to the shoe, the pivotal connections being such that the shoe will tiret swing on its connection with the supportwhen the work piece is moved into engagement with the saw and then lswing back lto its normal position with relation to the support while the support will swing on its pivotal connection with the frame, substantiall)T as described.

2. A saw guard comprising a support at the back of the saw, a shoe adapted to tit over the saw and to lie parallel with the upper portion ofthe saw table before the work piece is inserted and after one end of the Work piece has passed beyond the saw, a support pivoted t-o the shoe and the trame, the pivotal connections being such that the shoe Will tirst be swung at an angle when the work piece engages the saw and then swing into a position which is parallel with the saw table after the end of the work piece has passed the center of gravity ot the shoe, substantially :es described.

3. saw guard compi-hing a supporting trame in back of the saw, a Shoe adapted to lit over the exposed portion ot the saw above the table, pivotal connectionsl between the frame and the alice, and a cam on the front endY of the shoe arranged to he engaged bv the work piece to rai. e the shoe, the pivotal connections being such that the front portion of the Shoe will be raised when el'igaged by the work piece and then the heel portion thereof after the work pieiie has passed thel centerl ot gravity il' the shoe, Substai'itially as described.

4. A saw guard comprising a vertically slotted shoe adapted to tit over the exposed portion oil the saw, a member secured there to and carrying a pin or pivot. a hnli niember engaging ead pin onl pivot, said hub member and the lirst named member haring cooperating stop luge, a supporting arm to which the hub member is secured, an overhanging lSupport, a sleeve member loosely mounted thereon and having meanel tor'adjustablv securing thereto the upper end portion of said Supporting arm, and meanS vtor limiting the pivotal movement olf the arm; substantially as described.

In testimony `whereof, we have hereunto set our hands.

Elllllt lIiUllOLl). CLlNTON G. VILDIQRSUN. lVitnesses:

Jnssn-i J. GALLAonnn, JOHN B. MORGAN.

Referenced by
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US2425331 *Dec 13, 1945Aug 12, 1947Kramer Linzie FGuard device for circular-saw table sawing machines
US3105530 *Oct 23, 1961Oct 1, 1963Peterson Russell EGuard for a circular table saw
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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
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
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
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
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US7895927May 19, 2010Mar 1, 2011Sd3, LlcPower equipment with detection and reaction systems
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US8061245Nov 8, 2004Nov 22, 2011Sd3, LlcSafety methods for use in power equipment
US8065943Oct 24, 2005Nov 29, 2011Sd3, LlcTranslation stop for use in power equipment
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
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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
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
US20020020265 *Sep 17, 2001Feb 21, 2002Gass Stephen F.Translation stop for use in power equipment
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
US20050039586 *Aug 20, 2004Feb 24, 2005Gass Stephen F.Brake cartridges for power equipment
US20050039822 *Aug 20, 2004Feb 24, 2005Gass Stephen F.Woodworking machines with overmolded arbors
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
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
US20060180451 *Apr 11, 2006Aug 17, 2006Gass Stephen FSwitch box for power tools with safety systems
US20060230896 *Jun 2, 2006Oct 19, 2006Gass Stephen FMiter saw with improved safety system
US20060247795 *Apr 15, 2005Nov 2, 2006Gass Stephen FDetection systems for power equipment
US20060272463 *Aug 18, 2006Dec 7, 2006Gass Stephen FMotion detecting system for use in a safety system for power equipment
US20070028733 *Oct 2, 2006Feb 8, 2007Gass Stephen FSafety methods for use in power equipment
US20070131071 *Feb 5, 2007Jun 14, 2007Gass Stephen FDiscrete proximity detection system
US20070175306 *Mar 14, 2007Aug 2, 2007Gass Stephen FElevation mechanism for table saws
US20070240786 *Jun 4, 2007Oct 18, 2007Gass Stephen FMotion detecting system for use in a safety system for power equipment
US20080029184 *Jun 11, 2007Feb 7, 2008Gass Stephen FBrake positioning system
US20100089212 *Oct 9, 2009Apr 15, 2010Gass Stephen FLogic control for fast-acting safety system
US20100236663 *May 19, 2010Sep 23, 2010Gass Stephen FPower equipment with detection and reaction systems
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DE1259556B *Oct 26, 1960Jan 25, 1968Norddeutsche Seekabelwerke AgTrennschweissvorrichtung fuer die paarweise Herstellung von Rundbeuteln aus thermoplastischem Kunststoff
Classifications
U.S. Classification83/440.2
Cooperative ClassificationB27G19/02