US88232A - Improvement in wire for shoe-pegs - Google Patents
Improvement in wire for shoe-pegs Download PDFInfo
- Publication number
- US88232A US88232A US88232DA US88232A US 88232 A US88232 A US 88232A US 88232D A US88232D A US 88232DA US 88232 A US88232 A US 88232A
- Authority
- US
- United States
- Prior art keywords
- wire
- pegs
- shoe
- improvement
- twisted
- 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
- 238000004519 manufacturing process Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B15/00—Nails; Staples
Definitions
- FIG. 1 is a perspective view of a spool, upon which is reeled both plain and twisted wire, made according to my improvement.
- Fig. 2 is a side view of a piece of the plain wire.
- Fig. 3 is a side view ot' a piece ot the wire twisted; and
- Fig. 4 is a cross-section, showing the peculiar form in which the wire is drawn.
- a marks the spool
- b the plain wire
- c the twisted wire
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Description
ELMER TOWNSED, OF BOSTON, MASSACHUSETTS.
IMPROVEMENT IN WIRE FOR SHOE-PEGS.
Specication forming part of Letters Patent No. 88,232, dated March 23, 1869.
To all whom t 'may concern:
Be it known that I, ELMER TOWNSEND, of Boston, in thecounty of Suffolk and State of Massachusetts, have invented an Improvement in Polygonal W'ire for Pegs; and I do hereby declare the following to be a full and correct description of the same, reference being had to the accompanying drawings, in which- Figure l is a perspective view of a spool, upon which is reeled both plain and twisted wire, made according to my improvement. Fig. 2 :is a side view of a piece of the plain wire. Fig. 3 is a side view ot' a piece ot the wire twisted; and Fig. 4 is a cross-section, showing the peculiar form in which the wire is drawn.
In these figures, a. marks the spool, b the plain wire, and c the twisted wire.
The manufacture of shoe-pegs from twisted polygonal wire is secured to T. Briggs Smith by patents, ot' which I am joint owner. Various forms of wire were suggested in those patents, among them one triangular and another lenticular in cross-section. In the practical development of that invention extensive eX- periments have been tried with wires of the forms mentioned; but, though they give good results, experience has shown that in order to give the wire the requisite number of threads to the inch to secure the best holding-power, an amount of twisting is necessary which tends to break down the Jber of the central portion ot the wire and impair its strength.
My ett'orts have been directed to a remedy for this ditliculty, and I have succeeded in discovering it in the present invention, which consists in making the sides of the triangular` wire concave, as shown in Fig. 4. A wire of this cross-section has less of the material in the center, and will bear more twisting Without injury to its strength than one with iiat sides. Hence a greater number of threads to the inch can be obtained, and a deeper and sharper thread is produced, securing greater holding-power to the peg cut from it, both by its increased lateral penetrationV and its diminished liability to draw out.
What I claim,aud desire to secure by Letters Patent, is-
Giving a concave form to the sides of a triangular wire for the manufacture of shoe-pegs, for the purpose set forth.
The above specification of my said invention signed and witnessed at Boston.
ELMER TOWNSEND.
Witnesses:
CHAs. P. GORELY, CHAs. F. STANsBURY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US88232A true US88232A (en) | 1869-03-23 |
Family
ID=2157715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US88232D Expired - Lifetime US88232A (en) | Improvement in wire for shoe-pegs |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US88232A (en) |
-
0
- US US88232D patent/US88232A/en not_active Expired - Lifetime
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