US123493A - Improvement in sewing-machines - Google Patents
Improvement in sewing-machines Download PDFInfo
- Publication number
- US123493A US123493A US123493DA US123493A US 123493 A US123493 A US 123493A US 123493D A US123493D A US 123493DA US 123493 A US123493 A US 123493A
- Authority
- US
- United States
- Prior art keywords
- shuttle
- sewing
- machines
- lever
- improvement
- 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
- 239000000428 dust Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/08—Loop takers, e.g. loopers for lock-stitch sewing machines
- D05B57/10—Shuttles
- D05B57/14—Shuttles with rotary hooks
- D05B57/143—Vertical axis type
Definitions
- the first part of my invention relates to a method of actuating a horizontal shuttle-lever for an elevated main shaft by a pendent lever, itself actuated by a cam thereon; and more particularly to the method whereby the two fixed levers, vibrating in planes at right angles to each other, transmit and receive motion, respectively, with a minimum of strain or friction.
- the shuttle-lever is furnished with a ball termination at the end opposite the shuttle, and the pendent lever with what would be a forked terminal were its outer sides not closed by a solid extension andunion thereof. This somewhat forked terminal engages the ball terminal of the shuttlelever and allows it free play during action.
- the second part of my invention consists in a shuttle made nearly straight operating in a curved shuttle-race or against a shuttle-race face, so that only the point and heel of the shuttle touch the face, thereby giving steadiness to the shuttle.
- Figure l is a plan of each part of my invention in place in the 'machine.
- Figs. 2 and 3 represent the two levers.
- I) is a ball on the shuttle-lever.
- j is the jaw of the pen dent lever.
- sh is the shuttle in place.
- the jaws j joined by a solid curtain which protects the end of the ball I) from flying dust, embraces the ball b, and in its pendulum-like action, which it receives from its cam, slightly slips on the periphery of the same, because of the two planes of motion at right angles.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Description
WILLIAM A. MACK.
Improvement in Sewing Machines.
N0. 123,493. Patented Feb. 6,1872.
NITED STATES PATENT' WILLIAM A. MACK, OF NORWALK, OHIO.
Specification forming part of Letters Patent No. 123,493, dated February 6, 1872; antedated January 22, i872.
I, WILLIAM A. MACK, of Norwalk, in the county of Huron and State of Ohio, have invented certain Improvements in Sewing-Machines, of which the following is a specification:
Nature and Object of the Invention.
The first part of my invention relates to a method of actuating a horizontal shuttle-lever for an elevated main shaft by a pendent lever, itself actuated by a cam thereon; and more particularly to the method whereby the two fixed levers, vibrating in planes at right angles to each other, transmit and receive motion, respectively, with a minimum of strain or friction. To this end the shuttle-lever is furnished with a ball termination at the end opposite the shuttle, and the pendent lever with what would be a forked terminal were its outer sides not closed by a solid extension andunion thereof. This somewhat forked terminal engages the ball terminal of the shuttlelever and allows it free play during action. The second part of my invention consists in a shuttle made nearly straight operating in a curved shuttle-race or against a shuttle-race face, so that only the point and heel of the shuttle touch the face, thereby giving steadiness to the shuttle.
Description of the Accompanying Drawing.
Figure l is a plan of each part of my invention in place in the 'machine. Figs. 2 and 3 represent the two levers.
General Description.
I) is a ball on the shuttle-lever. j is the jaw of the pen dent lever. sh is the shuttle in place.
The jaws j, joined by a solid curtain which protects the end of the ball I) from flying dust, embraces the ball b, and in its pendulum-like action, which it receives from its cam, slightly slips on the periphery of the same, because of the two planes of motion at right angles.
By this arrangement the oil on and near the friction-points is protected from dust, and the adjustment of the machine in all its parts, in manufacturing, is rendered much easier and cheaper, for each lever may be centered and so exactly titted for its functions as to require little special adjustment in place. The shuttle sh, being supported at each end instead of at the middle, has better bearing and less Wabble when in action.
I claim- The pendent leverhaving the curtained fork, in combination with the shuttle-lever provided with the ball-like termination, for the purposes set forth.
W. A. MACK.
Witnesses (J. W. FLINN,
A. F. ROWLAND.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US123493A true US123493A (en) | 1872-02-06 |
Family
ID=2192929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US123493D Expired - Lifetime US123493A (en) | Improvement in sewing-machines |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US123493A (en) |
-
0
- US US123493D patent/US123493A/en not_active Expired - Lifetime
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