US380567A - William hankffi - Google Patents

William hankffi Download PDF

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Publication number
US380567A
US380567A US380567DA US380567A US 380567 A US380567 A US 380567A US 380567D A US380567D A US 380567DA US 380567 A US380567 A US 380567A
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Prior art keywords
brace
william
braces
handle
hankffi
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    • 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
    • B23D51/08—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 devices for mounting straight saw blades or other tools
    • B23D51/12—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 devices for mounting straight saw blades or other tools for use with tools, dealt with in this subclass, which are connected to a carrier at both ends, e.g. bows adjustable in length or height
    • B23D51/125—Blade tensioning means

Definitions

  • My invention relates to bucksaws and braces therefor; and it consists in the novel construction of the parts hereinafter specified and claimed.
  • This invention is designed as an improvement upon the device shown and described in Letters Patent granted to me June 28, 1870, and numbered 104:,847.
  • Figure l is a side View of a saw constructed accordingto my improvements.
  • Fig. 2 is a side view of one of the forked braces, and
  • Fig. 3 is a plan view of the same; and
  • Fig. 4 is a view of a modification.
  • Fig. 1 of the drawings I have shown the frame of a bucksaw, of which the letter A is the handle, and B the end bar, and O the saw proper, all constructed and united in the usual manner.
  • the letterD represents a longitudinal brace, bent to form a crescent in shape, and having its ends secured in the handle and bar B, precisely as shown.
  • E represents metallic rods, 'affixed to the handle and end bar in the ordinary manner, and provided with a turn-buckle, F, for tight ening purposes.
  • braces G represents a preierabl y bifnrcated brace connected with the handle A and brace D, respectively, as shown, and is arranged diagonally therewith.
  • a similar brace G arranged to the arm B and brace D in the same manner.
  • My object in bifurcating these diag onal braces is to provide against large mortises and consequent weakening of the several parts. It is obvious, also, that by this method of construction the apparatus is decreased in weight from what it would be were the braces made of a single solid piece of timber.
  • the upper arm of this bifurcated brace is passed into a recess, a, formed in the handle or arm B,while the lower arm thereof rests against the inner side of said handle or brace.
  • Alike connection is made with the braces G aud D, as fully represented on Fig. l of the drawings.

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

(No Model.)
W. HANKIN, Sr.
BUUKSAW BRAGE.
No. 380,567. Patented Apr. 3, 1888.
UNITED STATES PATENI trice.
WILLIAM HANKIN, SR., OF BROOKLYN, NEW YORK.
BUCKSAW-BRACE.
EJPECIEICATION forming part of Letters Patent No. 380,567, dated April 3, 1888.
Application IiledNevember 15, 1887. Serial No. 255.212. (No modcLl To all whom it may concern:
Be it known that I, WILLIAM HANKIN, Sr., a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new. and useful Improvements in BuclIsaw-Braces; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
My invention relates to bucksaws and braces therefor; and it consists in the novel construction of the parts hereinafter specified and claimed.
This invention is designed as an improvement upon the device shown and described in Letters Patent granted to me June 28, 1870, and numbered 104:,847.
In the accompanying drawings, Figure l is a side View of a saw constructed accordingto my improvements. Fig. 2 is a side view of one of the forked braces, and Fig. 3 is a plan view of the same; and Fig. 4 is a view of a modification.
In Fig. 1 of the drawings I have shown the frame of a bucksaw, of which the letter A is the handle, and B the end bar, and O the saw proper, all constructed and united in the usual manner.
The letterD represents a longitudinal brace, bent to form a crescent in shape, and having its ends secured in the handle and bar B, precisely as shown.
E represents metallic rods, 'affixed to the handle and end bar in the ordinary manner, and provided with a turn-buckle, F, for tight ening purposes.
G represents a preierabl y bifnrcated brace connected with the handle A and brace D, respectively, as shown, and is arranged diagonally therewith. A similar brace G, arranged to the arm B and brace D in the same manner. My object in bifurcating these diag onal braces is to provide against large mortises and consequent weakening of the several parts. It is obvious, also, that by this method of construction the apparatus is decreased in weight from what it would be were the braces made of a single solid piece of timber. The upper arm of this bifurcated brace is passed into a recess, a, formed in the handle or arm B,while the lower arm thereof rests against the inner side of said handle or brace. Alike connection is made with the braces G aud D, as fully represented on Fig. l of the drawings.
In practice the rods E are loosened or tightcned at Will by the turn-buckle arranged between them, and in tightening, the braces G are pressed down firmly against the upper surface of the longitudinal brace D, and spring it downward. This brace then serves as a re tractionspring and keeps the saw taut and in line.
Having described my invention,whatI claim 1s#- In a bucksaw, the combination, with the end bar and handle-bar, of the longitudinal bowed brace having the upward curve the oblique braces G, having their ends forked, and one end of each brace secured to the upper side of the longitudinally-bowed brace and the opposite end secured to the upper inner side of the end bar and handle-bar, respectively, as set forth.
In testimony whereof I afx my signature in presence of two witnesses.
WILLIAM IANKIN, SR.
Witnesses:
WILLIAM HANIIIN, Jr., Tnos. CORWITHEN.
on the opposite side of the frame, is united
US380567D William hankffi Expired - Lifetime US380567A (en)

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