US302041A - Saw-guard - Google Patents

Saw-guard Download PDF

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Publication number
US302041A
US302041A US302041DA US302041A US 302041 A US302041 A US 302041A US 302041D A US302041D A US 302041DA US 302041 A US302041 A US 302041A
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Prior art keywords
saw
guard
arm
clamping
box
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Expired - Lifetime
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27GACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G19/00Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
    • B27G19/02Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/768Rotatable disc tool pair or tool and carrier
    • Y10T83/7734With guard for tool

Definitions

  • Figure l is a perspective View of a circular sawing machine and saw-guard adjusted over the circular saw by my improved attachment.
  • Fig. 2 is a view of the same parts, showing the Saw-guide adjusted from over the top of the Fig. 3 is a view in detail and section showing the Saw-guard, its head, and the means for adjusting it vertically.
  • Fig. 4 is an en-v larged view of the clamp-box, the eccentric clamping-lever, and the stop applied on the 2 5' upright portion of theswinging arm.
  • My object is to combine, with a horizontally-swinging arm bearing a circular sawl guard or sheath of segmental form, certain novel devices for adjusting said guard or 3o sheath vertically and horizontally, as will be fully understood from the following description, when taken in connection with the anneXed drawings.
  • A designates the sawframe, in which is 3 5 suitably mounted an arbor and a circular Saw, B, the upper portion of which latter extends above the top G of the Saw-table, in the usual well-known manner, as Shown in Figs. l and 2."
  • D designates an angular horizontally-ad- 4o justable supporting arm or bracket, which is preferably made of tubular metal, and which has its vertical limb fitted into a clamp-boX,
  • a pendant, vF which iS vertically slotted, as shown in the drawings, and provided with a hollow segmental guard, G, adapted to cover the-upper part of the saw B and protect the Sawyer from flying dust, and also protect him against accident, should the s aw belcome fractured and the pieces be throwni'rom it by centrifugal force. sidesof the guard G will allow the discharge of the sawdust that may get inside.
  • This guard is guided in its up-and-down movement in the Vertical slot formed in the said pendant, and it is vertically adjusted by means of a worm on a hand wheel shaft, s, vwhich worm engages with the teethi on avertically'guided rack, J, to whichthe said guard G is secured; or I may use, if desired, a wormgear for this purpose.

Description

J. SILT..
SAW GUARD.
Patented July 15, 1884 (No Model.) l
N, PETERS. Mmmuxwqmpw. wnhinmn. n.0.
1. HV1 .-.en
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Wl /VESSE S M. awww@ @Mg-My 2o table.
' UNITED STATES PATENT OFFICE.
J'osEPH SILL, oE PICTURE Rocks, PENNSYLVANIA.
,- n SAW-GUARD;
SPECIFICATION forming part of Letters Patent No. 302,041, dated `l'uly 15, 1884.
. a Application filed August 2l, 18,83.
To a/Z whom it may concern,.-
Be it known that I, JOSEPH SILL, a citizen of the United States, residing at Picture Rocks, in the county of Lycoming and State of Penn- 5 Sylvania, have invented certain new and useful Improvements in Saw-Guards; and I do hereby declare the-following to be a full, clear, and eXact description of the invention, Such as lwill enable others skilled in the art to which Io it appertains to make and use the same, reference being had to the accompanying drawings, and to lettersor iigures of reference marked thereon, which forni a part of this specification.
4Figure l is a perspective View of a circular sawing machine and saw-guard adjusted over the circular saw by my improved attachment. Fig. 2 is a view of the same parts, showing the Saw-guide adjusted from over the top of the Fig. 3 is a view in detail and section showing the Saw-guard, its head, and the means for adjusting it vertically. Fig. 4 is an en-v larged view of the clamp-box, the eccentric clamping-lever, and the stop applied on the 2 5' upright portion of theswinging arm.
My object is to combine, with a horizontally-swinging arm bearing a circular sawl guard or sheath of segmental form, certain novel devices for adjusting said guard or 3o sheath vertically and horizontally, as will be fully understood from the following description, when taken in connection with the anneXed drawings.
A designates the sawframe, in which is 3 5 suitably mounted an arbor and a circular Saw, B, the upper portion of which latter extends above the top G of the Saw-table, in the usual well-known manner, as Shown in Figs. l and 2." D designates an angular horizontally-ad- 4o justable supporting arm or bracket, which is preferably made of tubular metal, and which has its vertical limb fitted into a clamp-boX,
E, secured rigidly to one side of the sawframe. To this box E, I apply an eccentric,
45 a, having a hand-lever, b, keyed on it for the purpose of gripping or clamping the arm D and holding it rigidly in'either of the posi' tions designated4 in Figs. 1 and 2.
.Directly above the clamp-box E, and fixed 5o to the upright limb of the arm D, is a lug, c, which serves as a stop when this arm D is Renewed June 12, 1884. (No model.)
swung into the position shown in Fig. 2 by impinging against a plate, d, on the main frame.
To the overhanging end of the arm D, I secure a pendant, vF, which iS vertically slotted, as shown in the drawings, and provided with a hollow segmental guard, G, adapted to cover the-upper part of the saw B and protect the Sawyer from flying dust, and also protect him against accident, should the s aw belcome fractured and the pieces be throwni'rom it by centrifugal force. sidesof the guard G will allow the discharge of the sawdust that may get inside.
This guard is guided in its up-and-down movement in the Vertical slot formed in the said pendant, and it is vertically adjusted by means of a worm on a hand wheel shaft, s, vwhich worm engages with the teethi on avertically'guided rack, J, to whichthe said guard G is secured; or I may use, if desired, a wormgear for this purpose.
It will be seen from the above description indicatedin Fig. 1 to that shown in Fig. 2by iirst adjusting itvertical until it iS freed from the saw, then releasing the arnrD from its clamping-eccentric a and swinging the arm around about one-half of a revolution on' its vertical axis until the stop-lug e strikes the plate d. The arm D maybe xed in this position by means of the eccentric a, above described.
Having described my invention, what I claim as new, and desire to secure by Letters Patent, is- Y g 1. The combination of the arm adapted to Swing over tlie Saw-table, and having on its outer horizontal end a guardI for a` circular saw, .with a clamp-box iixedto the side of s-aid table for clamping the vertical end of said arm, whereby said guard can be moved on its vertical end or fixed in position, sub- Stantially vas described. 2. vIhe combination, with a saw-table, of Swinging arm having a saw-guard applied to its'overhanging end, and provided with a clamping l.device for the vertical end of the arm, and `a stop-lug, c, substantially in the manner and for the purposes described.
that the guard G is inoved'from the position The orifices g in the i IOO 3. The combination,\with ai'rame having a In testimony whereof I affix my signaturein presence of two witnesses.
JOSEPH SILL.
Vitnesses:
JAMES B. CoRYnLL, THOMAS W. LLOYD.
US302041D Saw-guard Expired - Lifetime US302041A (en)

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Cited By (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679871A (en) * 1950-07-19 1954-06-01 Robert S Ford Work holder for jointer planers and other woodworking machines
US5181447A (en) * 1991-03-25 1993-01-26 Timothy Hewitt Adjustable protecting guard apparatus for a blade of a table saw
US20020017175A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Translation stop for use in power equipment
US20020017179A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Miter saw with improved safety system
US20020017182A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Brake positioning system
US20020017184A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Table saw with improved safety system
US20020017180A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Brake mechanism for power equipment
US20020017183A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Cutting tool safety system
US20020017336A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Apparatus and method for detecting dangerous conditions in power equipment
US20020017178A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Motion detecting system for use in a safety system for power equipment
US20020017181A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Retraction system for use in power equipment
US20020020263A1 (en) * 2000-08-14 2002-02-21 Gass Stephen F. Firing subsystem for use in a fast-acting safety system
US20020020265A1 (en) * 2000-08-14 2002-02-21 Gass Stephen F. Translation stop for use in power equipment
US20020020271A1 (en) * 2000-08-14 2002-02-21 Gass Stephen F. Spring-biased brake mechanism for power equipment
US20020020262A1 (en) * 2000-08-14 2002-02-21 Gass Stephen F. Logic control for fast-acting safety system
US20020056348A1 (en) * 2000-09-29 2002-05-16 Gass Stephen F. Miter saw with improved safety system
US20020056350A1 (en) * 2000-09-29 2002-05-16 Gass Stephen F. Table saw with improved safety system
US20020056349A1 (en) * 2000-09-29 2002-05-16 Gass Stephen F. Miter saw with improved safety system
US20020059853A1 (en) * 2000-09-29 2002-05-23 Gass Stephen F. Power saw with improved safety system
US20020059855A1 (en) * 2000-09-29 2002-05-23 Gass Stephen F. Miter saw with improved safety system
US20020066346A1 (en) * 2000-09-29 2002-06-06 Gass Stephen F. Miter saw with improved safety system
US20020170399A1 (en) * 1999-10-01 2002-11-21 Gass Stephen F. Safety systems for power equipment
US20020170400A1 (en) * 2001-05-17 2002-11-21 Gass Stephen F. Band saw with improved safety system
US20030015253A1 (en) * 2001-07-18 2003-01-23 Gass Stephen F. Router with improved safety system
US20030019341A1 (en) * 2001-07-27 2003-01-30 Gass Stephen F. Safety systems for band saws
US20030020336A1 (en) * 2001-07-25 2003-01-30 Gass Stephen F. Actuators for use in fast-acting safety systems
US20030037651A1 (en) * 2001-08-13 2003-02-27 Gass Stephen F. Safety systems for power equipment
US20030058121A1 (en) * 2001-09-24 2003-03-27 Gass Stephen F. Logic control with test mode for fast-acting safety system
US20030056853A1 (en) * 2001-09-21 2003-03-27 Gass Stephen F. Router with improved safety system
US20030090224A1 (en) * 2001-11-13 2003-05-15 Gass Stephen F. Detection system for power equipment
US20030131703A1 (en) * 2002-01-16 2003-07-17 Gass Stephen F. Apparatus and method for detecting dangerous conditions in power equipment
US20030140749A1 (en) * 2002-01-25 2003-07-31 Gass Stephen F. Brake Pawls for power equipment
US20040040426A1 (en) * 2002-08-27 2004-03-04 Gass Stephen F. Miter saw with improved safety system
ES2209646A1 (en) * 2002-12-04 2004-06-16 Benjamin Bello Garcia Protector for the cutting wheel of a sawing machine
US20040173430A1 (en) * 2003-03-05 2004-09-09 Gass Stephen F. Retraction system and motor position for use with safety systems for power equipment
US20050039822A1 (en) * 2003-08-20 2005-02-24 Gass Stephen F. Woodworking machines with overmolded arbors
US20050039586A1 (en) * 2003-08-20 2005-02-24 Gass Stephen F. Brake cartridges for power equipment
US20050041359A1 (en) * 2003-08-20 2005-02-24 Gass Stephen F. Motion detecting system for use in a safety system for power equipment
US20050139057A1 (en) * 2003-12-31 2005-06-30 Gass Stephen F. Table saws with safety systems
US20050139459A1 (en) * 2003-12-31 2005-06-30 Gass Stephen F. Switch box for power tools with safety systems
US20050139058A1 (en) * 2003-12-31 2005-06-30 Gass Stephen F. Brake cartridges and mounting systems for brake cartridges
US20050155473A1 (en) * 2003-12-31 2005-07-21 Gass Stephen F. Dectection systems for power equipment
US20050166736A1 (en) * 2004-01-29 2005-08-04 Gass Stephen F. Table saws with safety systems and systems to mount and index attachments
US20050178259A1 (en) * 2001-08-13 2005-08-18 Gass Stephen F. Miter saw with improved safety system
US20050204885A1 (en) * 2002-01-14 2005-09-22 Gass Stephen F Miter saw with improved safety system
US20050252187A1 (en) * 2000-09-29 2005-11-17 Gass Stephen F Cutting tool safety system
US20060032352A1 (en) * 2000-09-18 2006-02-16 Gass Stephen F Translation stop for use in power equipment
US7055417B1 (en) 1999-10-01 2006-06-06 Sd3, Llc Safety system for power equipment
US20060247795A1 (en) * 2005-04-15 2006-11-02 Gass Stephen F Detection systems for power equipment
US7171879B2 (en) 2001-07-02 2007-02-06 Sd3, Llc Discrete proximity detection system
US7210383B2 (en) 2000-08-14 2007-05-01 Sd3, Llc Detection system for power equipment
US7347851B1 (en) 2004-03-09 2008-03-25 Leo B Kriksunov Needleless hypodermic jet injector apparatus and method
US7712403B2 (en) 2001-07-03 2010-05-11 Sd3, Llc Actuators for use in fast-acting safety systems
US7836804B2 (en) 2003-08-20 2010-11-23 Sd3, Llc Woodworking machines with overmolded arbors
US8082825B2 (en) 2009-06-09 2011-12-27 Butler David J Health and safety system for a table saw
US8186255B2 (en) 2000-09-29 2012-05-29 Sd3, Llc Contact detection system for power equipment
US10118308B2 (en) 2013-10-17 2018-11-06 Sawstop Holding Llc Systems to mount and index riving knives and spreaders in table saws

Cited By (127)

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Publication number Priority date Publication date Assignee Title
US2679871A (en) * 1950-07-19 1954-06-01 Robert S Ford Work holder for jointer planers and other woodworking machines
US5181447A (en) * 1991-03-25 1993-01-26 Timothy Hewitt Adjustable protecting guard apparatus for a blade of a table saw
US5317944A (en) * 1991-03-25 1994-06-07 Timothy Hewitt Adjustable protecting guard apparatus for a blade of a table saw
US7055417B1 (en) 1999-10-01 2006-06-06 Sd3, Llc Safety system for power equipment
US8196499B2 (en) 1999-10-01 2012-06-12 Sd3, Llc Power equipment with detection and reaction systems
US7525055B2 (en) 1999-10-01 2009-04-28 Sd3, Llc Switch box for power tools with safety systems
US7895927B2 (en) 1999-10-01 2011-03-01 Sd3, Llc Power equipment with detection and reaction systems
US7347131B2 (en) 1999-10-01 2008-03-25 Sd3, Llc Miter saw with improved safety system
US20020170399A1 (en) * 1999-10-01 2002-11-21 Gass Stephen F. Safety systems for power equipment
US20060000337A1 (en) * 1999-10-01 2006-01-05 Gass Stephen F Band saw with safety system
US7788999B2 (en) 1999-10-01 2010-09-07 Sd3, Llc Brake mechanism for power equipment
US8408106B2 (en) 1999-10-01 2013-04-02 Sd3, Llc Method of operating power equipment with detection and reaction systems
US9522476B2 (en) 1999-10-01 2016-12-20 Sd3, Llc Power equipment with detection and reaction systems
US9724840B2 (en) 1999-10-01 2017-08-08 Sd3, Llc Safety systems for power equipment
US9925683B2 (en) 1999-10-01 2018-03-27 Sawstop Holding Llc Table saws
US9969014B2 (en) 1999-10-01 2018-05-15 Sawstop Holding Llc Power equipment with detection and reaction systems
US10335972B2 (en) 1999-10-01 2019-07-02 Sawstop Holding Llc Table Saws
US7621205B2 (en) 1999-10-01 2009-11-24 Sd3, Llc Band saw with safety system
US7225712B2 (en) 2000-08-14 2007-06-05 Sd3, Llc Motion detecting system for use in a safety system for power equipment
US7308843B2 (en) 2000-08-14 2007-12-18 Sd3, Llc Spring-biased brake mechanism for power equipment
US7681479B2 (en) 2000-08-14 2010-03-23 Sd3, Llc Motion detecting system for use in a safety system for power equipment
US20020017175A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Translation stop for use in power equipment
US7600455B2 (en) 2000-08-14 2009-10-13 Sd3, Llc Logic control for fast-acting safety system
US20020017179A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Miter saw with improved safety system
US20020017182A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Brake positioning system
US7509899B2 (en) 2000-08-14 2009-03-31 Sd3, Llc Retraction system for use in power equipment
US7832314B2 (en) 2000-08-14 2010-11-16 Sd3, Llc Brake positioning system
US20020017184A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Table saw with improved safety system
US7359174B2 (en) 2000-08-14 2008-04-15 Sd3, Llc Motion detecting system for use in a safety system for power equipment
US7921754B2 (en) 2000-08-14 2011-04-12 Sd3, Llc Logic control for fast-acting safety system
US7350444B2 (en) 2000-08-14 2008-04-01 Sd3, Llc Table saw with improved safety system
US20020017180A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Brake mechanism for power equipment
US7284467B2 (en) 2000-08-14 2007-10-23 Sd3, Llc Apparatus and method for detecting dangerous conditions in power equipment
US20020020262A1 (en) * 2000-08-14 2002-02-21 Gass Stephen F. Logic control for fast-acting safety system
US20020020271A1 (en) * 2000-08-14 2002-02-21 Gass Stephen F. Spring-biased brake mechanism for power equipment
US20020020265A1 (en) * 2000-08-14 2002-02-21 Gass Stephen F. Translation stop for use in power equipment
US7228772B2 (en) 2000-08-14 2007-06-12 Sd3, Llc Brake positioning system
US20020020263A1 (en) * 2000-08-14 2002-02-21 Gass Stephen F. Firing subsystem for use in a fast-acting safety system
US6857345B2 (en) 2000-08-14 2005-02-22 Sd3, Llc Brake positioning system
US9038515B2 (en) 2000-08-14 2015-05-26 Sd3, Llc Logic control for fast-acting safety system
US8522655B2 (en) 2000-08-14 2013-09-03 Sd3, Llc Logic control for fast-acting safety system
US20020017181A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Retraction system for use in power equipment
US7210383B2 (en) 2000-08-14 2007-05-01 Sd3, Llc Detection system for power equipment
US20020017178A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Motion detecting system for use in a safety system for power equipment
US8191450B2 (en) 2000-08-14 2012-06-05 Sd3, Llc Power equipment with detection and reaction systems
US20050139051A1 (en) * 2000-08-14 2005-06-30 Gass Stephen F. Brake positioning system
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US8151675B2 (en) 2000-08-14 2012-04-10 Sd3, Llc Logic control for fast-acting safety system
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US20020017183A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Cutting tool safety system
US7024975B2 (en) 2000-08-14 2006-04-11 Sd3, Llc Brake mechanism for power equipment
US20020017336A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Apparatus and method for detecting dangerous conditions in power equipment
US20060032352A1 (en) * 2000-09-18 2006-02-16 Gass Stephen F Translation stop for use in power equipment
US8065943B2 (en) 2000-09-18 2011-11-29 Sd3, Llc Translation stop for use in power equipment
US8061245B2 (en) 2000-09-29 2011-11-22 Sd3, Llc Safety methods for use in power equipment
US20020056348A1 (en) * 2000-09-29 2002-05-16 Gass Stephen F. Miter saw with improved safety system
US7784507B2 (en) 2000-09-29 2010-08-31 Sd3, Llc Router with improved safety system
US20020059855A1 (en) * 2000-09-29 2002-05-23 Gass Stephen F. Miter saw with improved safety system
US20050274432A1 (en) * 2000-09-29 2005-12-15 Gass Stephen F Router with improved safety system
US20020066346A1 (en) * 2000-09-29 2002-06-06 Gass Stephen F. Miter saw with improved safety system
US20020056349A1 (en) * 2000-09-29 2002-05-16 Gass Stephen F. Miter saw with improved safety system
US20020056350A1 (en) * 2000-09-29 2002-05-16 Gass Stephen F. Table saw with improved safety system
US8186255B2 (en) 2000-09-29 2012-05-29 Sd3, Llc Contact detection system for power equipment
US20050252187A1 (en) * 2000-09-29 2005-11-17 Gass Stephen F Cutting tool safety system
US6877410B2 (en) 2000-09-29 2005-04-12 Sd3, Llc Miter saw with improved safety system
US20060123964A1 (en) * 2000-09-29 2006-06-15 Gass Stephen F Table saw with improved safety system
US20020059853A1 (en) * 2000-09-29 2002-05-23 Gass Stephen F. Power saw with improved safety system
US7357056B2 (en) 2000-09-29 2008-04-15 Sd3, Llc Cutting tool safety system
US20020170400A1 (en) * 2001-05-17 2002-11-21 Gass Stephen F. Band saw with improved safety system
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US20030019341A1 (en) * 2001-07-27 2003-01-30 Gass Stephen F. Safety systems for band saws
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US20040163514A1 (en) * 2001-08-13 2004-08-26 Gass Stephen F. Safety systems for power equipment
US20060123960A1 (en) * 2001-08-13 2006-06-15 Gass Stephen F Safety systems for power equipment
US20030056853A1 (en) * 2001-09-21 2003-03-27 Gass Stephen F. Router with improved safety system
US20030058121A1 (en) * 2001-09-24 2003-03-27 Gass Stephen F. Logic control with test mode for fast-acting safety system
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US7290472B2 (en) 2002-01-14 2007-11-06 Sd3, Llc Miter saw with improved safety system
US20050204885A1 (en) * 2002-01-14 2005-09-22 Gass Stephen F Miter saw with improved safety system
US20030131703A1 (en) * 2002-01-16 2003-07-17 Gass Stephen F. Apparatus and method for detecting dangerous conditions in power equipment
US20030140749A1 (en) * 2002-01-25 2003-07-31 Gass Stephen F. Brake Pawls for power equipment
US20040040426A1 (en) * 2002-08-27 2004-03-04 Gass Stephen F. Miter saw with improved safety system
ES2209646A1 (en) * 2002-12-04 2004-06-16 Benjamin Bello Garcia Protector for the cutting wheel of a sawing machine
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US20040173430A1 (en) * 2003-03-05 2004-09-09 Gass Stephen F. Retraction system and motor position for use with safety systems for power equipment
US20050041359A1 (en) * 2003-08-20 2005-02-24 Gass Stephen F. Motion detecting system for use in a safety system for power equipment
US7836804B2 (en) 2003-08-20 2010-11-23 Sd3, Llc Woodworking machines with overmolded arbors
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US20050039822A1 (en) * 2003-08-20 2005-02-24 Gass Stephen F. Woodworking machines with overmolded arbors
US20050039586A1 (en) * 2003-08-20 2005-02-24 Gass Stephen F. Brake cartridges for power equipment
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