US140611A - Improvement in the manufacture of knitting-machine needles - Google Patents
Improvement in the manufacture of knitting-machine needles Download PDFInfo
- Publication number
- US140611A US140611A US140611DA US140611A US 140611 A US140611 A US 140611A US 140611D A US140611D A US 140611DA US 140611 A US140611 A US 140611A
- Authority
- US
- United States
- Prior art keywords
- manufacture
- knitting
- improvement
- machine needles
- needle
- 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 title description 16
- 238000000034 method Methods 0.000 description 12
- 210000001699 lower leg Anatomy 0.000 description 8
- 238000010276 construction Methods 0.000 description 4
- 238000003801 milling Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21G—MAKING NEEDLES, PINS OR NAILS OF METAL
- B21G1/00—Making needles used for performing operations
- B21G1/02—Making needles used for performing operations of needles with eyes, e.g. sewing-needles, sewing-awls
- B21G1/04—Making needles used for performing operations of needles with eyes, e.g. sewing-needles, sewing-awls of needles specially adapted for use in machines or tools
Definitions
- Knitting-Machine Needles Manufacture of Knitting-Machine Needles.
- This invention has relation to the manufacture of knitting-machine needles; and it consists in the process of drawing out the end of the needle to the small diameter required, then flattening the sides, then setting the small end which has been drawn out, from the center backward, so that it will be in line with the back of the needle, and finally finishing the needle in the ordinary manner.
- My mode of operation is to first draw out the' point before the wire is flattened, thus bringing the point or small end exactly central. Secondly, the whole shank'and bend of the needle are flattened.
- the third step in the manufacture is to swage or press the point from front to back so that the point will be in linewith the back, as indicated in Fig. 3 of the drawing.
- This step is the main feature of my process, and is regarded as a great improvement, as the needle is straightened thereby, and is provided by the pressure with a hard bearing-surface to run upon.
- the needle is finished in the ordinary manner, as illustrated in Fig. 4 of the drawing.
- enough stock is saved to make thirteen needles where twelve were made by the old method of milling or grinding off the point.
- my process is further designed to give greateruniformity to the hooks as well as greater strength.
- the needle wear For the purpose of making the needle wear longer it may be provided, in addition to the doubling a at the end of the shank, with a semicircular bend, b, this bend being designed to run in a groove of equal depth. In this manner the amount ofbearin'g surface is great- 1 y increased, while the process of manufacture is not more complicated than in the ordinary form of the shank.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Knitting Machines (AREA)
Description
.I. H. BUL LABD'.
Manufacture of Knitting-Machine Needles.
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UNITED STATES PATENT OFFICE.
JAMES H. BULLARD, OF GHIGOPEE FALLS, MASSACHUSETTS, ASSIGNOR OF ONE-HALF HIS RIGHT TO AMOS W. PAGE, OF SAME PLACE.
IMPROVEMENT IN THE MANUFACTURE OF KNITTING-MACHINE NEEDLES.
Specification forming part of Letters Patent No. 140,611, dated July 8, 1873; application filed April 19, 1873.
To all whom it may concern Be it known that I, J. HERBERT BULLARD, of Ghicopee Falls, in the county of Hampden and State of Massachusetts, have invented a new and valuable Improvement in the Manufacture of Knitting-Machine Needles; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings making a part of this specification, and to the letters and figures of reference marked thereon.
The figures of the drawings are representations of my needle as it appears respectively during the process of construction.
This invention has relation to the manufacture of knitting-machine needles; and it consists in the process of drawing out the end of the needle to the small diameter required, then flattening the sides, then setting the small end which has been drawn out, from the center backward, so that it will be in line with the back of the needle, and finally finishing the needle in the ordinary manner.
Heretofore knitting-machine needles have been made by simply pressing or swaging the bars flat from side to side, and then forming the small ends by milling down the metal from front to back, an expensive manipulation which wastes the steel and does not produce as strong a needle as is produced by my method, in which the small end of the needle is first drawn and then pressed.
My mode of operation is to first draw out the' point before the wire is flattened, thus bringing the point or small end exactly central. Secondly, the whole shank'and bend of the needle are flattened.
These two operations are indicated respectively in Figs. 1 and 2 of thedrawings, which illustrate the needle after the different stages of the manufacture.
The third step in the manufacture is to swage or press the point from front to back so that the point will be in linewith the back, as indicated in Fig. 3 of the drawing. This step is the main feature of my process, and is regarded as a great improvement, as the needle is straightened thereby, and is provided by the pressure with a hard bearing-surface to run upon. Finally, the needle is finished in the ordinary manner, as illustrated in Fig. 4 of the drawing. By this process enough stock is saved to make thirteen needles where twelve were made by the old method of milling or grinding off the point. And my process is further designed to give greateruniformity to the hooks as well as greater strength.
For the purpose of making the needle wear longer it may be provided, in addition to the doubling a at the end of the shank, with a semicircular bend, b, this bend being designed to run in a groove of equal depth. In this manner the amount ofbearin'g surface is great- 1 y increased, while the process of manufacture is not more complicated than in the ordinary form of the shank.
What I claim as new, and desire to secure by Letters Patent, is-- The method herein described of making knitting-machine needles, namely, first, drawing the point; second, swaging the parallel sides; third, pressing the point and offsetting it in line with the back ofthe shank; and, fourth, finishing in the usual manner, substantially as specified.
In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.
JAMES HERBERT BULLARD.
Witnesses GEORGE S. TAYLOR, ANDREW GALE.
Publications (1)
Publication Number | Publication Date |
---|---|
US140611A true US140611A (en) | 1873-07-08 |
Family
ID=2210025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US140611D Expired - Lifetime US140611A (en) | Improvement in the manufacture of knitting-machine needles |
Country Status (1)
Country | Link |
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US (1) | US140611A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3220221A (en) * | 1962-04-30 | 1965-11-30 | Textile Machine Works | Pivoted latch knitting needle |
US3229485A (en) * | 1961-11-28 | 1966-01-18 | Vyzk Ustav Bavlnarsky | Sliding latch needle |
-
0
- US US140611D patent/US140611A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3229485A (en) * | 1961-11-28 | 1966-01-18 | Vyzk Ustav Bavlnarsky | Sliding latch needle |
US3220221A (en) * | 1962-04-30 | 1965-11-30 | Textile Machine Works | Pivoted latch knitting needle |
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