US130484A - Improvement in saw-tooth swages - Google Patents
Improvement in saw-tooth swages Download PDFInfo
- Publication number
- US130484A US130484A US130484DA US130484A US 130484 A US130484 A US 130484A US 130484D A US130484D A US 130484DA US 130484 A US130484 A US 130484A
- Authority
- US
- United States
- Prior art keywords
- saw
- tooth
- swages
- improvement
- swage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 241001646071 Prioneris Species 0.000 title description 16
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
Images
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
- B23D63/00—Dressing the tools of sawing machines or sawing devices for use in cutting any kind of material, e.g. in the manufacture of sawing tools
- B23D63/06—Upsetting the cutting edges of saw teeth, e.g. swaging
Definitions
- the object of my invention is a saw-tooth swage of a more economical and durable character than those of the class to which my invention appertains.
- My improved swage consists of but two parts, namely, the block A, of steel, and the band or'ferrule B, one side of the latter being removed in the perspective view illustrated in the accompanying drawing for the better demonstration of my invention.
- the block A is of proper shape and dimensions for being grasped by one hand of the operator, and is suitably rounded at the outer end for receiving the blows of the hammer in the other hand of the operator.
- two angular notches, a a are formed in the swaging end of the instrument, and two holes, b b, are drilled transversely through the block, the metal intervening between the bottom of each notch, and. the adjacent hole being severed with a fine saw.
- one of the notches has slightly rounded sides, which have the effect of spreading the cutting-edges of a sawtooth, the other notch having straight sides for imparting the proper straight edge to the tooth after the latter has been spread.
Description
J; CONNOR.
Saw-Tooth Swages.
1 No, 130,484., Patented Aug. 13,1872.
UNITED STATES PATENT OFFICE.
JOHN CONNOR, OF PHILADELPHIA, PENNSYLVANIA.
IMPROVEMENT IN SAW-TOOTH SWAGES.
Specification forming part of Letters Patent No. 130,484., dated August 13, 1872.
Specification describing an Improved Saw- Iooth Swage, invented by JOHN CONNOR, of Philadelphia, Pennsylvania.
Improvement in Saw-Tooth Swage.
The object of my invention is a saw-tooth swage of a more economical and durable character than those of the class to which my invention appertains. My improved swage consists of but two parts, namely, the block A, of steel, and the band or'ferrule B, one side of the latter being removed in the perspective view illustrated in the accompanying drawing for the better demonstration of my invention.
The block A is of proper shape and dimensions for being grasped by one hand of the operator, and is suitably rounded at the outer end for receiving the blows of the hammer in the other hand of the operator. In the present instance two angular notches, a a, are formed in the swaging end of the instrument, and two holes, b b, are drilled transversely through the block, the metal intervening between the bottom of each notch, and. the adjacent hole being severed with a fine saw. The slots thus formed, however, are tightly closed on driving the tapering ferrule 13 onto the tapering end of the block, and thus a sharp, well-defined corner is always presented where .the two sides of each notch meetafor acting on the extreme cutting-edge of a sawtooth, the perfection of the swage depending. upon the perfection of the bottom of each notch.
In saw-tooth swages of this class detachable pieces are usually fitted to the swaging end for the formation of the notch. I not only save expense by dispensing with these pieces, which demand accurate fitting, but, by making the block A of one solid piece, in the manner described, increased solidity and durability are imparted to the instrument.
It will be observed that one of the notches has slightly rounded sides, which have the effect of spreading the cutting-edges of a sawtooth, the other notch having straight sides for imparting the proper straight edge to the tooth after the latter has been spread.
I claim as my invention- A saw-tooth swage composed of a block, A, notched, drilled, and slotted, and combined with a tapering ferrule, B, all as set forth.
In testimony whereofl have signed myname to this specification in the presence of two subscribing witnesses.
JOHN CONNOR.
Witnesses:
WM. A. STEEL, JOHN K. RUPEnTUs.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US130484A true US130484A (en) | 1872-08-13 |
Family
ID=2199902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US130484D Expired - Lifetime US130484A (en) | Improvement in saw-tooth swages |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US130484A (en) |
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0
- US US130484D patent/US130484A/en not_active Expired - Lifetime
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