US836110A - Handsaw-guide. - Google Patents

Handsaw-guide. Download PDF

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Publication number
US836110A
US836110A US1905288830A US836110A US 836110 A US836110 A US 836110A US 1905288830 A US1905288830 A US 1905288830A US 836110 A US836110 A US 836110A
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United States
Prior art keywords
guide
plate
piece
handsaw
bar
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Expired - Lifetime
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Oscar F Giffin
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Individual
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Priority to US1905288830 priority Critical patent/US836110A/en
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Publication of US836110A publication Critical patent/US836110A/en
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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
    • 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
    • Y10T83/697—By rotation about an axis parallel to the work-support surface

Definitions

  • This invention relates to improvements in handsawguides, the object. of the invention being to provide an instrument by means of which a handsaw may be guided over a piece of wood to saw the same at any angle to its general direction or many desired plane or inclination to the vertical.
  • Figure 1 is a plan view of the instrument.
  • Fig. 2 is a side view thereof.
  • Fig. 3 is a front view.
  • Fig. 4 is a view of the side opposite to that shown in Fig. 2.
  • Fig. 5 is an enlarged detail vertical section through the main pivot of the instrument.
  • Fig. 6 is a horizontal sec tion on the line 6 6 of Fig. 5.
  • 1 represents an angular base having a vertical member 2, adapted to rest against the vertical edge of the board, beam, or other piece of wood to be sawed, and a horizontal member 3, adapted to rest upon the top thereof.
  • a bolt 4 extending upward from the end of said angular base 1, is a horizontal guidesupporting plate 5, onto which is secured a semicircular rack 6.
  • This rack is graduated in angles, each tooth of the rack preferably corresponding with a small number of degrees of arc, as five degrees.
  • a locking-bar 7 normally pressed toward said rack by a spring 8
  • Hinged to said guide-supporting plate 5, as shown at 10, is an upwardly-extending guide-plate 1 1, on which, in line with the bolt 4 of the plate 5, is a pivot 12'of a semicircular graduated brace 13, which passes through a slot 14 in the angular base and is clamped at any desired point by a set-screw 15.
  • This brace is graduated, as shown at 16, to indi cate the angle of inclination of said guideplate 11 to the vertical.
  • Upon the back of said guide-plate 11 is secured a guide-strip 17, which extends first upwardly and then downwardly over the upper edge of the guideplate 11.
  • the saw is reoiprocated between the guide-strip 17 and the guide-plate 11, the instrument having been set at the desired angle of inclination either across the piece of wood by means of the rack and sliding locking-bar or to the vertical by means of the graduated limb and set-screw.
  • a cheaper instrument which suffices for many purposes of carpentry, may be made by omitting the angular adjustment to the vertical of the upwardly-extending guideplate and using only the semicircular rack and locking-bar to vary the inclination of the out across the piece of wood which is to be sawed.
  • I claim- 1 In combination, a suitable supportingplate adapted to rest upon the piece of wood to be sawed, a guide-supporting plate, one of said plates having immovably secured thereto a bar pivoted to the other plate, said plates and bar all extending from a common center, and said plates tapering toward said center, and having their under surfaces in substantially the same plane, and a guideplate hinged to said guide-supporting plate, and provided with means for guiding a saw in its movement in contact with said plate, substantially as described. 7
  • a guide supporting plate a suitable supporting-plate adapted to rest upon the piece of wood to be sawed, having inimovably secured thereto a bar pivoted to the other plate, said plates and bars all extending from a common center, and said plates tapering toward said center, and having their under surfaces in substantially the same plane, and a guide-plate hinged to said guide-supporting plate, and provided with means for guiding a saw in its movement in contact with said plate, substantially as described.
  • a suitable supportingplate adapted to rest upon the piece of wood to be sawed, a guide-supporting plate, one of said plates having immovably secured thereto a bar pivoted to the other plate, said plates and bar all extending from a common center, and said plates tapering toward said center, and having their under surfaces in substantially the same plane, and a guide-plate hinged to said guide-supporting plate, and

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)

Description

No. 836,110. Q PATENTED NOV. 20, 1906.
, 0. F. GIFPIN.
HANDSAW GUIDE.
APPLICATION FILED NOV.24. 1905.
14 WWW MAW/ma OSCAR F. GIFFIN, OF SAN FRANCISCO, CALIFORNIA.
HAN DSAW-GUIDE.
Specification of Letters Patent.
Patented Nov. '20, 1906'.
A li ti fil d November 24,1905. Serial No. 288,830.
To all whom it may concern:
Be it known that I, OSCAR F. GI-FFIN, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented ce r tain new and useful Improvements in Handsaw-Guides, of which the following is a specification.
This invention relates to improvements in handsawguides, the object. of the invention being to provide an instrument by means of which a handsaw may be guided over a piece of wood to saw the same at any angle to its general direction or many desired plane or inclination to the vertical.
In the accompanying drawings, Figure 1 is a plan view of the instrument. Fig. 2 is a side view thereof. Fig. 3 is a front view. Fig. 4 is a view of the side opposite to that shown in Fig. 2. Fig. 5 is an enlarged detail vertical section through the main pivot of the instrument.' Fig. 6 is a horizontal sec tion on the line 6 6 of Fig. 5.
Referring to the drawings, 1 represents an angular base having a vertical member 2, adapted to rest against the vertical edge of the board, beam, or other piece of wood to be sawed, and a horizontal member 3, adapted to rest upon the top thereof. Pivoted upon a bolt 4, extending upward from the end of said angular base 1, is a horizontal guidesupporting plate 5, onto which is secured a semicircular rack 6. This rack is graduated in angles, each tooth of the rack preferably corresponding with a small number of degrees of arc, as five degrees. Upon the horizontal member of the angular piece 1 is slidably mounted a locking-bar 7, normally pressed toward said rack by a spring 8, and
aving at its end near the rack teeth 9, which are adapted to engage the teeth of the rack.
Hinged to said guide-supporting plate 5, as shown at 10, is an upwardly-extending guide-plate 1 1, on which, in line with the bolt 4 of the plate 5, is a pivot 12'of a semicircular graduated brace 13, which passes through a slot 14 in the angular base and is clamped at any desired point by a set-screw 15. This brace is graduated, as shown at 16, to indi cate the angle of inclination of said guideplate 11 to the vertical. Upon the back of said guide-plate 11 is secured a guide-strip 17, which extends first upwardly and then downwardly over the upper edge of the guideplate 11. The saw is reoiprocated between the guide-strip 17 and the guide-plate 11, the instrument having been set at the desired angle of inclination either across the piece of wood by means of the rack and sliding locking-bar or to the vertical by means of the graduated limb and set-screw.
A cheaper instrument, which suffices for many purposes of carpentry, may be made by omitting the angular adjustment to the vertical of the upwardly-extending guideplate and using only the semicircular rack and locking-bar to vary the inclination of the out across the piece of wood which is to be sawed.
I claim- 1. In combination, a suitable supportingplate adapted to rest upon the piece of wood to be sawed, a guide-supporting plate, one of said plates having immovably secured thereto a bar pivoted to the other plate, said plates and bar all extending from a common center, and said plates tapering toward said center, and having their under surfaces in substantially the same plane, and a guideplate hinged to said guide-supporting plate, and provided with means for guiding a saw in its movement in contact with said plate, substantially as described. 7
2. In combination, a guide supporting plate, a suitable supporting-plate adapted to rest upon the piece of wood to be sawed, having inimovably secured thereto a bar pivoted to the other plate, said plates and bars all extending from a common center, and said plates tapering toward said center, and having their under surfaces in substantially the same plane, and a guide-plate hinged to said guide-supporting plate, and provided with means for guiding a saw in its movement in contact with said plate, substantially as described.
3. Inv combination, a suitable supportingplate adapted to rest upon the piece of wood to be sawed, a guide-supporting plate, one of said plates having immovably secured thereto a bar pivoted to the other plate, said plates and bar all extending from a common center, and said plates tapering toward said center, and having their under surfaces in substantially the same plane, and a guide-plate hinged to said guide-supporting plate, and
provided with means for guiding a saw in its movement in contact with said plate, said means comprising a double U-shaped bar the ends of which are secured upon the side of the guide-plate opposite to the Saw, While the cenctlral portion extenlds lovfir the face of thg gui elatea ainstw ie t esaW moves an in clos proxiinity thereto, the front member GIFFIN' of said piece being shorter than the rear Witnesses: member, substantially as described. BESSIE GORFINKEL,
In Witness whereof I have hereunto set my ANNIE PETERSON.
hand in the presence of two subscribing witnesses.
US1905288830 1905-11-24 1905-11-24 Handsaw-guide. Expired - Lifetime US836110A (en)

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US1905288830 US836110A (en) 1905-11-24 1905-11-24 Handsaw-guide.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2719548A (en) * 1954-03-26 1955-10-04 Paul B Mitchell Saw guide tool for portable power saw

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2719548A (en) * 1954-03-26 1955-10-04 Paul B Mitchell Saw guide tool for portable power saw

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