US2823709A - Protractor for electric hand saw - Google Patents

Protractor for electric hand saw Download PDF

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Publication number
US2823709A
US2823709A US588122A US58812256A US2823709A US 2823709 A US2823709 A US 2823709A US 588122 A US588122 A US 588122A US 58812256 A US58812256 A US 58812256A US 2823709 A US2823709 A US 2823709A
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Prior art keywords
protractor
electric hand
sleeve
arm
saw
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Expired - Lifetime
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US588122A
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Edmund T Konieczka
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
    • B23Q17/2233—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work for adjusting the tool relative to the workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q9/00—Arrangements for supporting or guiding portable metal-working machines or apparatus
    • B23Q9/0014—Portable machines provided with or cooperating with guide means supported directly by the workpiece during action
    • B23Q9/0042—Portable machines provided with or cooperating with guide means supported directly by the workpiece during action the guide means being fixed only on the workpiece
    • B23Q9/005—Portable machines provided with or cooperating with guide means supported directly by the workpiece during action the guide means being fixed only on the workpiece angularly adjustable
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/667—Tool carrier or guide affixed to work during cutting
    • Y10T83/68—Entirely work supported
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/687—By tool reciprocable along elongated edge
    • Y10T83/6905—With tool in-feed
    • Y10T83/6945—With passive means to guide tool directly
    • Y10T83/695—By plural opposed guide surfaces
    • Y10T83/696—With relative adjustment between guide and work or work-support
    • Y10T83/6975—By rotation about an axis perpendicular to the work-support surface
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/748—With work immobilizer
    • Y10T83/7487—Means to clamp work
    • Y10T83/756—Self-locking drive means
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7755—Carrier for rotatable tool movable during cutting
    • Y10T83/7763—Tool carrier reciprocable rectilinearly
    • Y10T83/7768—With means to adjust path of reciprocation
    • Y10T83/7772—Angular relative to previous path

Definitions

  • An object of the invention is to provide a mechanism that is used as a protractor with an electric hand saw.
  • Another object of the invention is to provide a mechanism of this type with an adjustable saw-cut indicator which shows where the saw is to make its cut.
  • a further object of the invention is to provide a mechanism which will enable the operator to make precision cuts and to use the saw with both hands.
  • Figure 1 is a view in front elevation, showing the mechanism adjusted to permit a cut at 30 degrees on a board or rafter.
  • Figure 2 is an enlarged fragmentary view in elevation.
  • Figure 3 is a view partly in elevation and partly in section.
  • Figure 4 is a longitudinal sectional view taken on line 4-4, Figure 2, and looking in the direction of the arrows.
  • Figure 5 is partly a view in elevation and partly a sectional view taken on line 5-5, Figure 2, and looking in the direction of the arrows.
  • Figure 6 is a sectional view taken on line 6-6, Figure 2, and looking in the direction of the arrows.
  • Figure 7 is a sectional view taken on line 7-7, Figure 2, and looking in the direction of the arrows.
  • Figure 8 is a vertical sectional view taken on line 8-8, Figure 6, and looking in the direction of the arrows.
  • Figure 9 is a detail sectional view taken on line 9-9, Figure 2, and looking in the direction of the arrows.
  • Figure 10 is a transverse sectional view taken on line 10-10, Figure 2, and looking in the direction of the arrows.
  • Figure 11 is a longitudinal sectional view taken on line 11-11, Figure 2, and looking in the direction of the arrows.
  • Figure 12 is a longitudinal sectional view of the mechanism taken on line 12-12, Figure 2, and looking in the direction of the arrows.
  • 1 designates a saw guide which is angular shape in cross section. Fastened by means of a thumb screw 2 to said saw guide is a degree plate 3. In this degree plate 3 is an elongated slot 4. Contiguous to said slot 4 is a scale 5. A primary arm 6 is pivotally mounted at its inner end upon the thumb screw 2, Fig. 1.
  • an indicator 8 which comprises an outer section 9 (Figs. 6 and 7) and an inner section 10. These two sections 9 and 10 are in slidable engagement, and a thumb screw 11 serves to retain these two sections in an adjusted position.
  • the outer section 9 has a pointed end 12 and the inner section 10 has a bifurcated end 13.
  • the bifurcated 13 is detachably mounted upon the saw guide 1.
  • a stationary jaw 14 is integral with a sleeve 15 which is fitted on the outer end of the auxiliary arm 16.
  • the sleeve 15 is held in an adjusted position upon arm 16 by means of assembly screw 17.
  • An auxiliary sleeve 18 is mounted upon the auxiliary arm 16, and this sleeve 18 is provided with :an adjustable clamping jaw 19. This jaw 19 cooperates with jaw 14, and lumber may be clamped between these jaws 14 and 19.
  • a handle 20 (Figs. 11 and 12) is provided with an extension 21 which is pivotally connected at 24 to link 23, which link 23 is connected to stud 24a that is carried by sleeve 18.
  • An auxiliary link 25 is pivotally connected at 26 to the outer end of the extension 21.
  • Link 25 is connected at 26 to the stud 27 carried by lock 28.
  • handle 20 is shown in a closed or locking position, wherein the lock 28 is tightly clamping the arm 16, holding jaw 19 in a fixed position.
  • the lock 28 is released and then sleeve 18 can be adjusted on arm 16. Then by closing the handle 20 the lock will be set.
  • the primary arm 6 is provided with a pointer 29, which is held by plate lock screw 30, said screw 30 working in the slot 4 when the screw 30 is loosened and the operator shifts the angularity of the primary arm 6.
  • a pointer 29 which is held by plate lock screw 30, said screw 30 working in the slot 4 when the screw 30 is loosened and the operator shifts the angularity of the primary arm 6.
  • 30a is a fish-tail cut-put to see degree indicated.
  • the indicator 8 permits the operator to indicate the line of cut.
  • the lock 28 is V-shape in cross section and the auxiliary arm 16 is also substantially V- shape, the V-shape lock 28 being capable of fitting tightly the V-shape arm 16.
  • a saw guide comprised of a length of angle iron having a fiat portion and an upright portion perpendicular thereto, an indicator slidably mounted on said upright portion, said indicator comprising an inner section and an outer section slidable relative to each other, means for securing the sections in a desired position of adjustment, a bifurcated end on said inner section detachably secured to said upright portion, a depending marker point on said outer section, an auxiliary arm pivotally mounted on one end of said guide, a degree plate fixed to said.
  • said degree plate having a pair of arcuate slots therein, degree indicia marked adjacent said slots, a pointer afiixed to said auxiliary arm, said pointer having a cut-out portion through which certain of said degree indicia may be read, a clamping member extending through one of said slots for securing said auxiliary arm in a desired position of angularity relative to said guide, a sleeve slidable on said auxiliary arm, a clamping jaw fixed to said sleeve, a second auxiliary arm fixed to said sleeve in perpendicular relation to said first-mentioned arm, a second sleeve slidable upon said second auxiliary arm, a second clamping jaw parallel to said first-mentioned jaw carried by said second sleeve movable to clamp lumber between said jaws, and means for clamping said last-mentioned jaw in a selected position, said last-mentioned clamping means comprising a stud on
  • clamp lock 311,432 SWitZef1flPd 3 9 9 will preclude movement of said second sleeve, the linkage 631,301 Great Br ta n Oct. 31, 1949 forming an over-center snap to secure said clamp lock 10 666,254 Great England Feb. 6, 1952 in clamping position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)

Description

Feb. 18, 1958 E. T. KONIECZKA 2,823,709
- PROTRACTOR FOR ELECTRIC HAND SAW Filed May 29, 1956 Y 3 Sheets-Sheet 1 INVENTOR,
ATTORNEYS Feb. 18, 1958 E. T. KONIVECZKA PROTRACTOR FOR ELECTRIC HAND SAW Filed ma 29, 1956 3 Sheets-Sheet 2 4 4mm; fil 6H m 1 mli T m A 4 m 2 A. n 2 5? fin QZ Z M 1 u a w P A a w w 7 E W H M fi H 6 i f a Z 8 1/ I BY ATTORNEYS:
Feb. 18, 1958 E. T. KONIECZKA v 2,823,709
PROTRACTOR FOR ELECTRIC HAND SAW Filed May 29, 1956 SSheets-Sheet 3 rp rpalllrirlllpa,
INVENTOR,
i' ATTORNEYS United States Patent PROTRACTOR FOR ELECTRIC HAND SAW Edmund T. Konieczka, Nekoosa, Wis.
Application May 29, 1956, Serial No. 588,122
1 Claim. (Cl. 143-6) This invention relates to a protractor for an electric hand saw.
An object of the invention is to provide a mechanism that is used as a protractor with an electric hand saw.
Another object of the invention is to provide a mechanism of this type with an adjustable saw-cut indicator which shows where the saw is to make its cut.
A further object of the invention is to provide a mechanism which will enable the operator to make precision cuts and to use the saw with both hands.
With the foregoing and other objects in view, this invention comprises certain novel constructions, combinations, and arrangements of parts as will be hereinafter fully described, illustrated in the accompanying drawings, and more particularly pointed out in the appended claim.
I n the drawings:
Figure 1 is a view in front elevation, showing the mechanism adjusted to permit a cut at 30 degrees on a board or rafter.
Figure 2 is an enlarged fragmentary view in elevation.
Figure 3 is a view partly in elevation and partly in section.
Figure 4 is a longitudinal sectional view taken on line 4-4, Figure 2, and looking in the direction of the arrows.
Figure 5 is partly a view in elevation and partly a sectional view taken on line 5-5, Figure 2, and looking in the direction of the arrows.
Figure 6 is a sectional view taken on line 6-6, Figure 2, and looking in the direction of the arrows.
Figure 7 is a sectional view taken on line 7-7, Figure 2, and looking in the direction of the arrows.
Figure 8 is a vertical sectional view taken on line 8-8, Figure 6, and looking in the direction of the arrows.
Figure 9 is a detail sectional view taken on line 9-9, Figure 2, and looking in the direction of the arrows.
Figure 10 is a transverse sectional view taken on line 10-10, Figure 2, and looking in the direction of the arrows.
Figure 11 is a longitudinal sectional view taken on line 11-11, Figure 2, and looking in the direction of the arrows.
Figure 12 is a longitudinal sectional view of the mechanism taken on line 12-12, Figure 2, and looking in the direction of the arrows.
Referring to the drawings by numerals, 1 designates a saw guide which is angular shape in cross section. Fastened by means of a thumb screw 2 to said saw guide is a degree plate 3. In this degree plate 3 is an elongated slot 4. Contiguous to said slot 4 is a scale 5. A primary arm 6 is pivotally mounted at its inner end upon the thumb screw 2, Fig. 1.
On the edge 7 of the saw guide 1, Fig. 1, is mounted an indicator 8, which comprises an outer section 9 (Figs. 6 and 7) and an inner section 10. These two sections 9 and 10 are in slidable engagement, and a thumb screw 11 serves to retain these two sections in an adjusted position. The outer section 9 has a pointed end 12 and the inner section 10 has a bifurcated end 13. The bifurcated 13 is detachably mounted upon the saw guide 1.
A stationary jaw 14 is integral with a sleeve 15 which is fitted on the outer end of the auxiliary arm 16. The sleeve 15 is held in an adjusted position upon arm 16 by means of assembly screw 17.
An auxiliary sleeve 18 is mounted upon the auxiliary arm 16, and this sleeve 18 is provided with :an adjustable clamping jaw 19. This jaw 19 cooperates with jaw 14, and lumber may be clamped between these jaws 14 and 19.
A handle 20 (Figs. 11 and 12) is provided with an extension 21 which is pivotally connected at 24 to link 23, which link 23 is connected to stud 24a that is carried by sleeve 18. An auxiliary link 25 is pivotally connected at 26 to the outer end of the extension 21. Link 25 is connected at 26 to the stud 27 carried by lock 28.
In Figures 11 and 12 handle 20 is shown in a closed or locking position, wherein the lock 28 is tightly clamping the arm 16, holding jaw 19 in a fixed position. When handle 20 is swung outward, away from the arm 16, the lock 28 is released and then sleeve 18 can be adjusted on arm 16. Then by closing the handle 20 the lock will be set.
The primary arm 6 is provided with a pointer 29, which is held by plate lock screw 30, said screw 30 working in the slot 4 when the screw 30 is loosened and the operator shifts the angularity of the primary arm 6. At 30a is a fish-tail cut-put to see degree indicated.
It is understood that the indicator 8 permits the operator to indicate the line of cut.
Referring to Figure 9, the lock 28 is V-shape in cross section and the auxiliary arm 16 is also substantially V- shape, the V-shape lock 28 being capable of fitting tightly the V-shape arm 16.
While I have described the preferred embodiment of the invention and illustrated the same in the accompanying drawings, certain minor changes or alterations may appear to one skilled in the art to which this invention relates during the extensive manufacture of the same, and I, therefore, reserve the right to make such changes or alterations as shall fairly fall within the scope of the appended claim.
What I claim is:
In a mechanism of the class described, a saw guide comprised of a length of angle iron having a fiat portion and an upright portion perpendicular thereto, an indicator slidably mounted on said upright portion, said indicator comprising an inner section and an outer section slidable relative to each other, means for securing the sections in a desired position of adjustment, a bifurcated end on said inner section detachably secured to said upright portion, a depending marker point on said outer section, an auxiliary arm pivotally mounted on one end of said guide, a degree plate fixed to said. guide, said degree plate having a pair of arcuate slots therein, degree indicia marked adjacent said slots, a pointer afiixed to said auxiliary arm, said pointer having a cut-out portion through which certain of said degree indicia may be read, a clamping member extending through one of said slots for securing said auxiliary arm in a desired position of angularity relative to said guide, a sleeve slidable on said auxiliary arm, a clamping jaw fixed to said sleeve, a second auxiliary arm fixed to said sleeve in perpendicular relation to said first-mentioned arm, a second sleeve slidable upon said second auxiliary arm, a second clamping jaw parallel to said first-mentioned jaw carried by said second sleeve movable to clamp lumber between said jaws, and means for clamping said last-mentioned jaw in a selected position, said last-mentioned clamping means comprising a stud on said sleeve, a link pivotally con nected at one end to said stud, a handle, an extension end 3 on said handle, a pivotal connection between an inter- References Cited in the file of this patent mediate portion of said extension and the other end of UNITED STATES PATENTS said link, a second link pivotally connected to the end of said extension, a clamp lock surrounding said second auxiliary arm, a stud carried by said clamp lock, and a 5 pivot connecting said last-mentioned stud to the other end of said second link whereby when said handle is 2,735,455 Forsberg Feb. 21, 1956 2,773,523 Hopla Dec. 11, 1956 FOREIGN PATENTS moved towards said second auxiliary arm said clamp lock 311,432 SWitZef1flPd 3 9 9 will preclude movement of said second sleeve, the linkage 631,301 Great Br ta n Oct. 31, 1949 forming an over-center snap to secure said clamp lock 10 666,254 Great Britain Feb. 6, 1952 in clamping position.
US588122A 1956-05-29 1956-05-29 Protractor for electric hand saw Expired - Lifetime US2823709A (en)

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Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2926706A (en) * 1956-10-29 1960-03-01 Lloyd M Hopla Cross-cut and rip guide device for portable power saws
US2976899A (en) * 1959-02-16 1961-03-28 Joseph H Lane Power tool guide with clamping and indicator means
US3124176A (en) * 1964-03-10 Adjustable jig for cutting wood
US3273613A (en) * 1966-09-20 Portable saw guide and work holder
US3287808A (en) * 1964-09-15 1966-11-29 William J Fortune Clamp saw guide
US3757628A (en) * 1972-05-01 1973-09-11 G Camacho Fixture for saw
US3845556A (en) * 1973-05-23 1974-11-05 T Edmunson Cut control attachment for chain saws
US4179965A (en) * 1978-03-13 1979-12-25 Johnson F Walter Guide for portable power tool
US4522098A (en) * 1984-02-27 1985-06-11 Bliss Delbert N Saw guide
WO1986003446A1 (en) * 1984-12-11 1986-06-19 Volk Michael J Saw guide and miter apparatus
US4608761A (en) * 1985-12-16 1986-09-02 Small Charles B Portable precision guide for powered hand tools
US4901444A (en) * 1988-04-13 1990-02-20 Maschmeier Frederick W Method and apparatus for guiding a saw relative to an angular cut of a board
US4952214A (en) * 1981-08-20 1990-08-28 Ohio Medical Instrument Co., Inc. Arcuate osteotomy blade, blade guide, and cutting method
US5035698A (en) * 1985-04-10 1991-07-30 Ohio Medical Instrument Co., Inc. Arcuate osteotomy blade
US5147364A (en) * 1981-08-20 1992-09-15 Ohio Medical Instrument Company Osteotomy saw/file, cutting guide and method
US5148730A (en) * 1988-03-24 1992-09-22 Mccaw Ronald A Sawmark guide
US5379670A (en) * 1994-01-13 1995-01-10 Ferry; Gordon Guide for a mitre saw
US5390425A (en) * 1992-01-22 1995-02-21 Gilberts; Alexander Saw guide measuring square
US5487319A (en) * 1993-10-22 1996-01-30 Cody; Delbert J. Saw guide apparatus
US6536125B2 (en) * 2000-02-18 2003-03-25 Leo Klapperich Measuring and shifting square
US20040020061A1 (en) * 2002-08-02 2004-02-05 O'banion Michael L. Cut guide for portable saw
US20050154394A1 (en) * 2004-01-14 2005-07-14 Michalowicz Joseph J. Variable angle cutting block
US20050172769A1 (en) * 2004-02-06 2005-08-11 Maes Roger V. Portable vise and saw combination
US20050204888A1 (en) * 2004-03-16 2005-09-22 Gd Tools, Llc Cutting guide
US20050204887A1 (en) * 2004-03-16 2005-09-22 Roland Fries Cutting guide
FR2903926A1 (en) * 2006-07-20 2008-01-25 Andre Dieu Support for e.g. metallic piece machining guide, has fixation unit to directly place support on piece, and rail to position and move guide along axle rotatably moving in plane parallel to that of piece, where rail is connected to protractor
US20160075049A1 (en) * 2014-09-15 2016-03-17 Caspar Lilholt Guidance assembly for circular saws

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB631301A (en) * 1947-11-06 1949-10-31 Donald Ross Improvements in vices
GB666254A (en) * 1949-02-07 1952-02-06 Harold George Ruddick Improvements in or relating to means for clamping
CH311432A (en) * 1953-10-30 1955-11-30 Breitler Pierre Electrical signaling device.
US2735455A (en) * 1956-02-21 forsberg
US2773523A (en) * 1952-04-29 1956-12-11 Hopla Lloyd Melvin Guide device for portable power saws

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735455A (en) * 1956-02-21 forsberg
GB631301A (en) * 1947-11-06 1949-10-31 Donald Ross Improvements in vices
GB666254A (en) * 1949-02-07 1952-02-06 Harold George Ruddick Improvements in or relating to means for clamping
US2773523A (en) * 1952-04-29 1956-12-11 Hopla Lloyd Melvin Guide device for portable power saws
CH311432A (en) * 1953-10-30 1955-11-30 Breitler Pierre Electrical signaling device.

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124176A (en) * 1964-03-10 Adjustable jig for cutting wood
US3273613A (en) * 1966-09-20 Portable saw guide and work holder
US2926706A (en) * 1956-10-29 1960-03-01 Lloyd M Hopla Cross-cut and rip guide device for portable power saws
US2976899A (en) * 1959-02-16 1961-03-28 Joseph H Lane Power tool guide with clamping and indicator means
US3287808A (en) * 1964-09-15 1966-11-29 William J Fortune Clamp saw guide
US3757628A (en) * 1972-05-01 1973-09-11 G Camacho Fixture for saw
US3845556A (en) * 1973-05-23 1974-11-05 T Edmunson Cut control attachment for chain saws
US4179965A (en) * 1978-03-13 1979-12-25 Johnson F Walter Guide for portable power tool
US5147364A (en) * 1981-08-20 1992-09-15 Ohio Medical Instrument Company Osteotomy saw/file, cutting guide and method
US4952214A (en) * 1981-08-20 1990-08-28 Ohio Medical Instrument Co., Inc. Arcuate osteotomy blade, blade guide, and cutting method
US4522098A (en) * 1984-02-27 1985-06-11 Bliss Delbert N Saw guide
WO1986003446A1 (en) * 1984-12-11 1986-06-19 Volk Michael J Saw guide and miter apparatus
US4608898A (en) * 1984-12-11 1986-09-02 Volk Michael J Saw guide and miter apparatus
US5035698A (en) * 1985-04-10 1991-07-30 Ohio Medical Instrument Co., Inc. Arcuate osteotomy blade
US4608761A (en) * 1985-12-16 1986-09-02 Small Charles B Portable precision guide for powered hand tools
US5148730A (en) * 1988-03-24 1992-09-22 Mccaw Ronald A Sawmark guide
US4901444A (en) * 1988-04-13 1990-02-20 Maschmeier Frederick W Method and apparatus for guiding a saw relative to an angular cut of a board
US5390425A (en) * 1992-01-22 1995-02-21 Gilberts; Alexander Saw guide measuring square
US5487319A (en) * 1993-10-22 1996-01-30 Cody; Delbert J. Saw guide apparatus
US5379670A (en) * 1994-01-13 1995-01-10 Ferry; Gordon Guide for a mitre saw
US6536125B2 (en) * 2000-02-18 2003-03-25 Leo Klapperich Measuring and shifting square
US20040020061A1 (en) * 2002-08-02 2004-02-05 O'banion Michael L. Cut guide for portable saw
US6829830B2 (en) * 2002-08-02 2004-12-14 Black & Decker Inc. Cut guide for portable saw
US7364581B2 (en) * 2004-01-14 2008-04-29 Howmedica Osteonics Corp. Variable angle cutting block
US20050154394A1 (en) * 2004-01-14 2005-07-14 Michalowicz Joseph J. Variable angle cutting block
US20050172769A1 (en) * 2004-02-06 2005-08-11 Maes Roger V. Portable vise and saw combination
US7159496B2 (en) * 2004-02-06 2007-01-09 Amaesing Tools Manufacturing Inc. Portable vise and saw combination
US20050204887A1 (en) * 2004-03-16 2005-09-22 Roland Fries Cutting guide
US20050204888A1 (en) * 2004-03-16 2005-09-22 Gd Tools, Llc Cutting guide
FR2903926A1 (en) * 2006-07-20 2008-01-25 Andre Dieu Support for e.g. metallic piece machining guide, has fixation unit to directly place support on piece, and rail to position and move guide along axle rotatably moving in plane parallel to that of piece, where rail is connected to protractor
US20160075049A1 (en) * 2014-09-15 2016-03-17 Caspar Lilholt Guidance assembly for circular saws
US9718207B2 (en) * 2014-09-15 2017-08-01 Caspar Lilholt Guidance assembly for circular saws

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