US204291A - Improvement in shuttle-driving mechanisms for sewing-machines - Google Patents
Improvement in shuttle-driving mechanisms for sewing-machines Download PDFInfo
- Publication number
- US204291A US204291A US204291DA US204291A US 204291 A US204291 A US 204291A US 204291D A US204291D A US 204291DA US 204291 A US204291 A US 204291A
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- United States
- Prior art keywords
- shuttle
- sewing
- machines
- lever
- improvement
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- 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
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- 230000001105 regulatory Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 2
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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
- Our invention relates to that class of sewing-machines in which two parallel seamsare sewed at the same time, our object being to provide a simple and efficient mechanism to form two independent seams at the same time by one operation of the machine.
- our mechanism and parts hereinafter described we employ the mechanisms and parts hereinafter described.
- Two horizontal levers are suitably pivoted to the under side of the platform of the machine.
- the platform has an extension or auxiliary platform, which forms a bracket for one of the shuttle-levers.
- Each lever carries a shuttle at one end, and they have an equal and simultaneous movement, one of the lovers imparting its motion directly to the other by means of a pitman, the motion of the first lever being obtained from a main shaft, which operates a vertical lever in the post or arm of the machine.
- the feed mechanism is in part secured to a bracket of suitable form, which is fastened to the under side of the platform inside of the shuttle-race, instead of outside, as formerly, but projecting over the shuttle-race so as to bring it in proper position for the feed, and to permit the shuttle-levers to move unobstructed to the end of their traverse.
- the feed-bar carries a roughened head, formed to suit the double work to be performed, and having a set of feed-points for each seam, the length of stitch being regulated by any customary device.
- the devices for holding the goods, controlling the thread, and regulating the tension are the same as ordinarily used.
- a and A are the levers, with cranks O G fixed thereto, each lever carrying a shuttle, D 1).
- the levers are suitably ,F.
- I is a lever, pivoted to the platform, for
- K is a stud, which attaches the lever G to the projecting bracket E.
- N is the lower end of the vertical lever,
- a vertical lever, N gives a reciprocating motion to the shuttle-levers A A with their cranks O G.
- the pitman B conveys motion from A to the lever A.
- the rod H raises the feed-bar F, when the operation of feeding takes place.
- I moves the lever G, which, inturn, moves the feed-bar the required distance.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Description
E BROSEMANN, M. :ROSENSTOGK, 811 M R USSENBERGER.
Shuttle-Driving Mechanism for Sewing-Machines.
No. 204,291. Patented May 28,1878.
ml'nesses 172W 15 UNITED STATES PATENTQFFICE.
ERNST BROSEMANN AND MARTIN RUSSENBERGER, 'OF NEW YORK, N. Y., AND MORITZ ROSENSTOGK, OF HOBOKEN, NEW JERSEY.
IMPROVEMENT IN SHUTTLE-DRIVING MECHANISMS FOR SEWING-MACHINES.
Specification forming part of Letters Patent No. 204,291, dated May 28, 1878; application filed I February 19, 1877.
To all whom it may concern:
Beit known that we, ERNST BROSEMANN and MARTIN RUSSENBERGER, of the city, county, and State of New York, and MORITZ ROSENSTOGK, of the city of Hoboken, county of Hudson, and State of New Jersey, have invented certain new and useful'lmprovements in ShuttleDriving Mechanisms for Sewing- Machines, of which the following, with the accompanying drawing, is a specification.
Similar letters refer to like parts.
Our invention relates to that class of sewing-machines in which two parallel seamsare sewed at the same time, our object being to provide a simple and efficient mechanism to form two independent seams at the same time by one operation of the machine. For this purpose we employ the mechanisms and parts hereinafter described.
Two horizontal levers are suitably pivoted to the under side of the platform of the machine. The platform has an extension or auxiliary platform, which forms a bracket for one of the shuttle-levers. Each lever carries a shuttle at one end, and they have an equal and simultaneous movement, one of the lovers imparting its motion directly to the other by means of a pitman, the motion of the first lever being obtained from a main shaft, which operates a vertical lever in the post or arm of the machine. I
The feed mechanism is in part secured to a bracket of suitable form, which is fastened to the under side of the platform inside of the shuttle-race, instead of outside, as formerly, but projecting over the shuttle-race so as to bring it in proper position for the feed, and to permit the shuttle-levers to move unobstructed to the end of their traverse.
The feed-bar carries a roughened head, formed to suit the double work to be performed, and having a set of feed-points for each seam, the length of stitch being regulated by any customary device.
The devices for holding the goods, controlling the thread, and regulating the tension are the same as ordinarily used.
In the drawing, A and A are the levers, with cranks O G fixed thereto, each lever carrying a shuttle, D 1). The levers are suitably ,F. I is a lever, pivoted to the platform, for
operating the lever G. K is a stud, which attaches the lever G to the projecting bracket E. N is the lower end of the vertical lever,
which receives motion from the main shaft and operates the lever A P P are needleslots in the shuttle-race.
Motion being given to the machine, a vertical lever, N, gives a reciprocating motion to the shuttle-levers A A with their cranks O G. The pitman B conveys motion from A to the lever A. The rod H raises the feed-bar F, when the operation of feeding takes place. I moves the lever G, which, inturn, moves the feed-bar the required distance.
It willbe seen that by fixing the crank G of the lever A on the opposite side, thelevers will move in an opposite direction. A We have now fully described our invention. What We claim is- 1. The combination of the two shuttle-levers I A A the cranks G C, and the pitman B, connecting the said levers, andcausin g them to impart simultaneous movement to the shuttles in circular arcs, as explained. I,
2. The combination of the extended table or platform Y Y, two levers, A A crankarms 0 O, and connecting-rod B, as and for the purposes set forth.
3. The projecting bracket E and a suitable feed mechanism mounted therein, in combination with the table Y Y, levers A A crankarms 0 G, and connecting rods B, as and for the purposes set forth.
ERNST BROSEMANN. MARTIN RUSSENBERGER. MORITZ ROSENSTOOK. Witnesses: DAVID FRIEDMANNY,
OHAs. T. BRUEN.
Publications (1)
Publication Number | Publication Date |
---|---|
US204291A true US204291A (en) | 1878-05-28 |
Family
ID=2273696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US204291D Expired - Lifetime US204291A (en) | Improvement in shuttle-driving mechanisms for sewing-machines |
Country Status (1)
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US (1) | US204291A (en) |
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- US US204291D patent/US204291A/en not_active Expired - Lifetime
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