US3124175A - Miter guide box - Google Patents

Miter guide box Download PDF

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Publication number
US3124175A
US3124175A US3124175DA US3124175A US 3124175 A US3124175 A US 3124175A US 3124175D A US3124175D A US 3124175DA US 3124175 A US3124175 A US 3124175A
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Prior art keywords
miter box
miter
guide
saw
wedges
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Expired - Lifetime
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G5/00—Machines or devices for working mitre joints with even abutting ends
    • B27G5/02—Machines or devices for working mitre joints with even abutting ends for sawing mitre joints; Mitre boxes
    • B27G5/023—Machines or devices for working mitre joints with even abutting ends for sawing mitre joints; Mitre boxes the mitre angle being adjusted by positioning a workpiece relative to a fixed saw
    • 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
    • B23Q9/0064—Portable machines cooperating with guide means not supported by the workpiece during working
    • B23Q9/0078—Portable machines cooperating with guide means not supported by the workpiece during working the guide means being fixed to a support
    • 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
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8773—Bevel or miter cut

Definitions

  • the present invention relates to a miter box or miter guide particularly adapted for use with a powered hand saw at a building site or the like.
  • one object of the present invention is to provide a miter box capable of use with a powered hand saw.
  • Another object of the present invention is to provide a miter box capable of improving the accuracy of powered hand saws.
  • Still another object of the invention is to provide a miter box which is relatively inexpensive and yet is capable of insuring great accuracy.
  • One embodiment of the present invention comprises a miter box including a container having parallel internal mutually facing walls.
  • a pair of Wedges are received between the walls and have equal apex angles pointing in opposite directions.
  • Each of these wedges has one side in engagement with the other wedge and the other side located in parallel relation to the internal walls of the container.
  • the wedges are arranged so that the outwardly facing, wedging surfaces bear against one of the internal walls and against a work piece received within the container.
  • FIG. 1 is a side elevation of a miter box constructed according to the present invention, the dotted lines show- .ing the position of a power saw during use of the miter box of the present invention.
  • FIG. 2 is an end elevation of the structure illustrated in FIG. 1.
  • FIG. 3 is a side elevation of the structure of FIG. 1 showing the opposite side of the miter box and showing the miter box in a different operating position.
  • a miter box which includes a pair of parallel elongated elements and 11 which may be formed of wood and which each have a generally rectangular cross section with a groove 12 and 13 in the mutually facing surfaces 15 and 16 thereof.
  • the grooves 12 and 13 extend longitudinally of the elongated elements centrally along the faces 15 and 16 and receive a sheet of pressed hardwood material 17, for example, peg board or the like, which extends between the two elongated elements.
  • the guides 22 and 23 may be formed of pressed hardwood material such as is commonly referred to as Masonite.
  • a pair of Wedges 25 and 26 may be received within either of the guides and the central sheet of material 17.
  • the wedges have equal apex angles formed by their bearing surfaces 24-, 27, 28 and 29, and therefore, their outwardly facing bearing surfaces 24 and 29 are parallel to one another. It should be noted that the thickness of the wedges 25 and 26 is equal to the dis tance between the central sheet 17 and either of the guides 22 or 23. For this reason, the outward faces of the wedges are always in alignment either with the sides 20 of the elongated elements 10 and 11 to which guide 22 is attached or the sides to which the guide 23 is attached.
  • the triangular shaped guide 22 may have any desired angle between its guiding surfaces 30 and 31 and those surfaces may have any desired angle with respect to the length of the elongated elements 10 and 11.
  • the angle between the surfaces 30 and 31 is degrees and the angle of both of those surfaces with respect to the length of the elongated elements is 45 degrees.
  • a work piece such as the baseboard material 32 will be cut at a 45 degree angle when a power hand saw 33 is used in the manner illustrated in FIG. 1.
  • the base 34 of the saw is guided by faces 20 of the elongated elements and also by the faces of the wedges 25 and 26 which are in alignment with the faces 20 as well as the guide 22.
  • the opposite side of the miter box is used in exactly the same manner as the side illustrated in FIG. 1.
  • the wedges 25 and 26 are operated to lock the work piece 35 in position and the base 33 of the saw is guided by the U-shaped element 23. It can be appreciated that the outside surfaces 36 and 37 of the legs of the U-shaped element are in perpendicular relation to the length of the elongated elements and as a result, the work piece 35 will be cut off perpendicularly to its length.
  • the guides 22 and 23 function to hold the miter box together. More particularly the guides have therethrough screws 40 which extend into the elongated elements to maintain them in spaced parallel relation. Preferably, at least some of the screws 40 also extend into the sheet hardwood material 17 to maintain it fixed in position relative to the elongated elements.
  • the present invention provides a miter box capable of use with a powered hand saw. It can also be appreciated that the present invention provides a miter box which may be relatively inexpensively constructed but which is capable of providing desired accuracy.
  • a miter box comprising a pair of elongated members of rectangular cross section, said members being arranged in parallel relation and having mutually facing surfaces which are grooved along their length, a sheet of material received in said grooves and extending between said elements, a triangularly shaped guide secured to said elongated members on one side thereof in parallel relation to said sheet of material, a U-shaped guide secured to said elongated members on the opposite side thereof in parallel relation to said sheet of material, said triangularly shaped guide having sides arranged at forty-five degree angles to the length of said elements, said U-shaped guide having sides arranged at ninety degree angles to the length of said elements.

Description

March 10, 1964 MCCLOUD 3,124,175
MITER GUIDE BOX Filed Jan. 23, 1961 ll Fig,
Fig. 3. i
INVENTOR. DONALD E. M CLOUD BY [aria W4 wamamww Ahorngus United States Patent Ofifice 3,124,175 Patented Mar. 10, 1964 3,124,175 l /HTER GUKDE BGX Donald E. MeClond, 1322 E. Vermont St., Indianapolis,
Ind, assignor of one-half to Jehu D. Stafiord, Southport, Ind.
Filed Jan. 23, 1961, Ser. No. 84,257 1 Claim. (Cl. 143-6) The present invention relates to a miter box or miter guide particularly adapted for use with a powered hand saw at a building site or the like.
It is well known that powered hand saws such as circular or rotary saws are quite a bit faster to use than the conventional manually powered reciprocating saw but, generally speaking, can be used only for relatively rough work. Accuracy can be produced by the use of the miter box with a manually powered reciprocating saw, however, there is not presently available such a miter box or guide for use with a power saw. Accordingly, one object of the present invention is to provide a miter box capable of use with a powered hand saw.
Another object of the present invention is to provide a miter box capable of improving the accuracy of powered hand saws.
Still another object of the invention is to provide a miter box which is relatively inexpensive and yet is capable of insuring great accuracy.
Related objects and advantages will become apparent as the description proceeds.
One embodiment of the present invention comprises a miter box including a container having parallel internal mutually facing walls. A pair of Wedges are received between the walls and have equal apex angles pointing in opposite directions. Each of these wedges has one side in engagement with the other wedge and the other side located in parallel relation to the internal walls of the container. The wedges are arranged so that the outwardly facing, wedging surfaces bear against one of the internal walls and against a work piece received within the container. There is also provided a guide secured to the container for guiding a saw during cutting of the work piece.
The full nature of the invention will be understood from the accompanying drawings and the following description and claim:
FIG. 1 is a side elevation of a miter box constructed according to the present invention, the dotted lines show- .ing the position of a power saw during use of the miter box of the present invention.
FIG. 2 is an end elevation of the structure illustrated in FIG. 1.
FIG. 3 is a side elevation of the structure of FIG. 1 showing the opposite side of the miter box and showing the miter box in a different operating position.
For the purposes of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawing and specific language will be used to describe the same. It will neverltheless be understood that no limitation of the scope of the invention is thereby intended, such alterations and further modifications in the illustrated device, and such further applications of the principles of the invention as illustrated therein being contemplated as would normally occur to one skilled in the art to which the invention relates.
Referring now more particularly to the drawings, there is illustrated a miter box which includes a pair of parallel elongated elements and 11 which may be formed of wood and which each have a generally rectangular cross section with a groove 12 and 13 in the mutually facing surfaces 15 and 16 thereof. The grooves 12 and 13 extend longitudinally of the elongated elements centrally along the faces 15 and 16 and receive a sheet of pressed hardwood material 17, for example, peg board or the like, which extends between the two elongated elements.
Secured to the opposite sides 20 and 21 of the elongated elements 10 and 11 are a pair of guides 22 and 23, the guide 22 having a triangular shape as illustrated in FIG. 1 and the guide 23 having a U-shape as illustrated in FIG. 3. The guides 22 and 23 may be formed of pressed hardwood material such as is commonly referred to as Masonite. A pair of Wedges 25 and 26 may be received within either of the guides and the central sheet of material 17. The wedges have equal apex angles formed by their bearing surfaces 24-, 27, 28 and 29, and therefore, their outwardly facing bearing surfaces 24 and 29 are parallel to one another. It should be noted that the thickness of the wedges 25 and 26 is equal to the dis tance between the central sheet 17 and either of the guides 22 or 23. For this reason, the outward faces of the wedges are always in alignment either with the sides 20 of the elongated elements 10 and 11 to which guide 22 is attached or the sides to which the guide 23 is attached.
The triangular shaped guide 22 may have any desired angle between its guiding surfaces 30 and 31 and those surfaces may have any desired angle with respect to the length of the elongated elements 10 and 11. In the illustrated embodiment, the angle between the surfaces 30 and 31 is degrees and the angle of both of those surfaces with respect to the length of the elongated elements is 45 degrees. For this reason, a work piece such as the baseboard material 32 will be cut at a 45 degree angle when a power hand saw 33 is used in the manner illustrated in FIG. 1. It should be noted that in using the saw, the base 34 of the saw is guided by faces 20 of the elongated elements and also by the faces of the wedges 25 and 26 which are in alignment with the faces 20 as well as the guide 22.
Referring to FIG. 3, the opposite side of the miter box is used in exactly the same manner as the side illustrated in FIG. 1. The wedges 25 and 26 are operated to lock the work piece 35 in position and the base 33 of the saw is guided by the U-shaped element 23. It can be appreciated that the outside surfaces 36 and 37 of the legs of the U-shaped element are in perpendicular relation to the length of the elongated elements and as a result, the work piece 35 will be cut off perpendicularly to its length.
It can be appreciated that the guides 22 and 23 function to hold the miter box together. More particularly the guides have therethrough screws 40 which extend into the elongated elements to maintain them in spaced parallel relation. Preferably, at least some of the screws 40 also extend into the sheet hardwood material 17 to maintain it fixed in position relative to the elongated elements.
For the above reasons, it can be appreciated that the present invention provides a miter box capable of use with a powered hand saw. It can also be appreciated that the present invention provides a miter box which may be relatively inexpensively constructed but which is capable of providing desired accuracy.
While the invention has been illustrated and described in detail in the drawings and foregoing description, the same is to be considered as illustrative and not restrictive in character, it being understood that only the preferred embodiment has been shown and described and that all changes and modifications that come Within the spirit of the invention and the scope of the claim are also desired to be protected.
The invention claimed is:
A miter box comprising a pair of elongated members of rectangular cross section, said members being arranged in parallel relation and having mutually facing surfaces which are grooved along their length, a sheet of material received in said grooves and extending between said elements, a triangularly shaped guide secured to said elongated members on one side thereof in parallel relation to said sheet of material, a U-shaped guide secured to said elongated members on the opposite side thereof in parallel relation to said sheet of material, said triangularly shaped guide having sides arranged at forty-five degree angles to the length of said elements, said U-shaped guide having sides arranged at ninety degree angles to the length of said elements.
UNITED STATES PATENTS Bartlett July 16, Frazier Feb. 12, Douglas Nov. 30, Denyer Apr. 26, Avery May 6, Kearney May 12, Neilson June 14,
FOREIGN PATENTS Great Britain May 6,
US3124175D Miter guide box Expired - Lifetime US3124175A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516457A (en) * 1969-05-27 1970-06-23 Samuel Winters Hand held miter guide for use with a power saw
JPS52123890U (en) * 1976-03-17 1977-09-20
US4054077A (en) * 1975-03-18 1977-10-18 Reginald Henry Gram Guide for hand held power saws
US4250624A (en) * 1979-01-22 1981-02-17 Partington Everett J Miter table for use with a saber saw
US4907482A (en) * 1988-02-26 1990-03-13 Hujo Lawrence W Guide for hand held power saws
US5226345A (en) * 1992-04-03 1993-07-13 Timothy Gamble Portable guide for hand power saws
US5832913A (en) * 1995-05-30 1998-11-10 Arends; William R. Tile saw accessory
US6158321A (en) * 1997-10-03 2000-12-12 Fencil; Adam Blase Internal miter saw means and method for cutting a workpiece to length without the need to measure
US20030140745A1 (en) * 2002-01-30 2003-07-31 Lewis Thomas M. Method and apparatus for stabilizing a workpiece
US20050016000A1 (en) * 2003-06-16 2005-01-27 Stewart Denham Ray Miter frame for a circular saw
US20050172776A1 (en) * 2004-02-05 2005-08-11 Beleski Alex T. Guide for hand-held power saw
US20060112806A1 (en) * 2003-06-16 2006-06-01 Stewart Denham R Miter box for guiding a circular saw
US20100251870A1 (en) * 2006-12-01 2010-10-07 Kelce Steven Wilson Power saw miter guide
US20130081529A1 (en) * 2011-09-30 2013-04-04 Robert Bosch Gmbh Power Saw Crown Molding Cutting Guide

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US129516A (en) * 1872-07-16 Improvement in templets for cutting miters
US533881A (en) * 1895-02-12 Dado-clamp
US1360507A (en) * 1919-04-14 1920-11-30 Douglas Norman Column-form, shore, and scaffold clamp
GB251437A (en) * 1925-05-09 1926-05-06 Michael Augustine Kent Improvements in or relating to devices or appliances for use in teaching handicrafts
US1855945A (en) * 1930-03-07 1932-04-26 Denyer Walter Gauge for cutting timber
US2595322A (en) * 1950-11-20 1952-05-06 Avery Benjamin Blanton Miter guide for power saws
US2638134A (en) * 1949-12-23 1953-05-12 Leroy Guittar Sr Adjustable miter rule attachment
US2940484A (en) * 1957-06-27 1960-06-14 Neilson Donald Miter box

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US129516A (en) * 1872-07-16 Improvement in templets for cutting miters
US533881A (en) * 1895-02-12 Dado-clamp
US1360507A (en) * 1919-04-14 1920-11-30 Douglas Norman Column-form, shore, and scaffold clamp
GB251437A (en) * 1925-05-09 1926-05-06 Michael Augustine Kent Improvements in or relating to devices or appliances for use in teaching handicrafts
US1855945A (en) * 1930-03-07 1932-04-26 Denyer Walter Gauge for cutting timber
US2638134A (en) * 1949-12-23 1953-05-12 Leroy Guittar Sr Adjustable miter rule attachment
US2595322A (en) * 1950-11-20 1952-05-06 Avery Benjamin Blanton Miter guide for power saws
US2940484A (en) * 1957-06-27 1960-06-14 Neilson Donald Miter box

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516457A (en) * 1969-05-27 1970-06-23 Samuel Winters Hand held miter guide for use with a power saw
US4054077A (en) * 1975-03-18 1977-10-18 Reginald Henry Gram Guide for hand held power saws
JPS52123890U (en) * 1976-03-17 1977-09-20
US4250624A (en) * 1979-01-22 1981-02-17 Partington Everett J Miter table for use with a saber saw
US4907482A (en) * 1988-02-26 1990-03-13 Hujo Lawrence W Guide for hand held power saws
US5226345A (en) * 1992-04-03 1993-07-13 Timothy Gamble Portable guide for hand power saws
US5832913A (en) * 1995-05-30 1998-11-10 Arends; William R. Tile saw accessory
US6158321A (en) * 1997-10-03 2000-12-12 Fencil; Adam Blase Internal miter saw means and method for cutting a workpiece to length without the need to measure
US20030140745A1 (en) * 2002-01-30 2003-07-31 Lewis Thomas M. Method and apparatus for stabilizing a workpiece
US6938528B2 (en) * 2002-01-30 2005-09-06 Thomas M. Lewis Method and apparatus for stabilizing a workpiece
US20050016000A1 (en) * 2003-06-16 2005-01-27 Stewart Denham Ray Miter frame for a circular saw
US20060112806A1 (en) * 2003-06-16 2006-06-01 Stewart Denham R Miter box for guiding a circular saw
US7159498B2 (en) * 2003-06-16 2007-01-09 Denham Ray Stewart Miter box for guiding a circular saw
US20050172776A1 (en) * 2004-02-05 2005-08-11 Beleski Alex T. Guide for hand-held power saw
US20100251870A1 (en) * 2006-12-01 2010-10-07 Kelce Steven Wilson Power saw miter guide
US8201483B2 (en) * 2006-12-01 2012-06-19 Kelce Steven Wilson Power saw miter guide
US20130081529A1 (en) * 2011-09-30 2013-04-04 Robert Bosch Gmbh Power Saw Crown Molding Cutting Guide
US10071498B2 (en) * 2011-09-30 2018-09-11 Robert Bosch Tool Corporation Power saw crown molding cutting guide

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