US175101A - Improvement in jig-saws - Google Patents

Improvement in jig-saws Download PDF

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Publication number
US175101A
US175101A US175101DA US175101A US 175101 A US175101 A US 175101A US 175101D A US175101D A US 175101DA US 175101 A US175101 A US 175101A
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Prior art keywords
saws
improvement
jig
saw
treadle
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Expired - Lifetime
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D49/00—Machines or devices for sawing with straight reciprocating saw blades, e.g. hacksaws
    • B23D49/007—Jig saws, i.e. machine saws with a vertically reciprocating narrow saw blade chucked at both ends for contour cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
    • B23D51/16—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of drives or feed mechanisms for straight tools, e.g. saw blades, or bows
    • B23D51/162—Stored energy furnished drive in one direction
    • 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
    • Y10T83/705—With means to support tool at opposite ends
    • Y10T83/7055—And apply drive force to both ends of tool
    • Y10T83/7065—By reciprocating rigid support

Definitions

  • Figure 1 is a top view of. my improved jigsaw, and Fig. 2 is a sectional elevation.
  • 'A is the bench or table; B, G, and D, the stationary frame, in which the saw-gate E works by the guides F G, .the gate being pressed down by the foot-treadle H, and raised by the springs I, J and K, spring I being attached to the under side of the stationary frame 0, and connected to the-treadle by the link K, spring J being attached by both ends to beam B, and spring K being attached at its upper end to beam B, and at the lower end to the short arm L of the foottreadle.
  • the saw M is connected to the arms of the saw-gate by the turning studs N O, for shifting'it to any direction, and stud O has thestraining-nut P screwed on it.
  • Q is the presser-foot for keeping the work in position.
  • R is the miter-box gage for sawing miters, the same being a board with right-angled sides S, and a flange, T, to gage it to the table, so that the base of the triangle runs parallel with the saw, and said board and sides S terminate short of the intersecting point of the sides to allow the work to project sufliciently to be sawed to the required bevel.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)

Description

P. HUGHES.
J'IG-SAW.
No.175,101. 1 rammed March 21,1876.-
WITNESSES:
ATTUBIIEYS.
MPETERS, PNOYO-LITHOGHAFHER, WASHING-Til"v D C UNITED STATES PATENT OFFICE.
PETER HUGHES, OF NEW YORK, N. Y.
IMPROVEMENT IN JlG-SAWS.
Specification forming part of Letters ,PatentNo. 115,101, dated March21, 1876; application filed February 21, 1876.
a ajig-saw.
Figure 1 is a top view of. my improved jigsaw, and Fig. 2 is a sectional elevation.
Similar letters of reference indicate corresponding parts.
'A is the bench or table; B, G, and D, the stationary frame, in which the saw-gate E works by the guides F G, .the gate being pressed down by the foot-treadle H, and raised by the springs I, J and K, spring I being attached to the under side of the stationary frame 0, and connected to the-treadle by the link K, spring J being attached by both ends to beam B, and spring K being attached at its upper end to beam B, and at the lower end to the short arm L of the foottreadle. The saw M is connected to the arms of the saw-gate by the turning studs N O, for shifting'it to any direction, and stud O has thestraining-nut P screwed on it. Q is the presser-foot for keeping the work in position. R is the miter-box gage for sawing miters, the same being a board with right-angled sides S, and a flange, T, to gage it to the table, so that the base of the triangle runs parallel with the saw, and said board and sides S terminate short of the intersecting point of the sides to allow the work to project sufliciently to be sawed to the required bevel.
Having thus described my invention, Iclaim as new and desire to secure by Letters Patent- The springs I, J, and K, combined and arranged with the foot-treadle H and the sawgate E, substantially as specified.
PETER HUGHES.
Witnesses:
T. B. MOSHER, ALEX. F. ROBERTS.
US175101D Improvement in jig-saws Expired - Lifetime US175101A (en)

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US175101A true US175101A (en) 1876-03-21

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