US269218A - Thomas a - Google Patents
Thomas a Download PDFInfo
- Publication number
- US269218A US269218A US269218DA US269218A US 269218 A US269218 A US 269218A US 269218D A US269218D A US 269218DA US 269218 A US269218 A US 269218A
- Authority
- US
- United States
- Prior art keywords
- crank
- shaft
- pitman
- lever
- eccentric
- 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
- 241000658540 Ora Species 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
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
Definitions
- Myinvention relates to that class of sewingmachines in which a rock-shaft having an increased axial motion and arotaryfeed-operating shaft are used, as hereinafter more fully described.
- X X indicate the rear part of the bed and arm of a sewing-machine.
- A is the mainshai't.
- B is the eccentric thereon.
- U is a pitman connected by pin a to bell-crank lever D, the longest arm of whichhas a slot, 6. Said lever is pivoted to the bed X bystud F.
- E is a rock-shaft, which is intended to carry a shuttle by a suitable fixture at its front end, and has 'a crank, g, fixed to its rear end.
- G is a crank pin, entering slot 6 of the Bell-crank lever D.
- crank 0- No model.
- the eccentric B imparts a reciprocating motion to the pitman O and the bell-crank D through the pin a, and from said bell-crank to the rockshai't E through the pin G and crank g.
- the pitmanlever I being fulcrumed at d to the radius-bar R and pivoted to the pitman (J, receivesavertical and lateral motion. Its lower end passes around the center of the shaft H, and, being connected to the crank 0 by the link N, gives the shaft H a rotary motion.
- This rotary shaft is intended to operate a feedbar by the usual connections.
- the pitman-lever may be connected directly to the eccentric by having a wider face on the eccentric, and the pitman-lever having an enlarged eye or strap to span the eccentric; ora separate eccentric maybe provided for it, instead oif being pivoted to the pitman O at K, and a slot and pin may be used instead of the radius-bar, and other changes may be made without departing from the spirit of my invention.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Description
(No Mbde l.)
T. A. MAGAUL-AY.
SEWING MACHINE.
No. 269,218. Patented Dec. 19, 1882 UNITED STATES ATENT OFFICE.
THOMAS A. MAOAULAY, OF NEWV YORK, N. Y.
SEWING-MACHINE.
SPECIFICATION forming part of Letters Patent No. 269,218, dated December 19, 1882,
Application filed November 3, 1882.
To all whom it may concern:
Be it known that LTHOMASA. MAoAnLAY, of the city, county, and State oi New York, liaveinvented certain new and useful Improvements in Sewing-lvlachines, of which the following, with the accompanying drawings, is a specification.
Similar letters refer to like parts.
Myinvention relates to that class of sewingmachines in which a rock-shaft having an increased axial motion and arotaryfeed-operating shaft are used, as hereinafter more fully described.
In the drawings, in which Figures 1 and 2 represent a portion of a sewing-machine, X X indicate the rear part of the bed and arm of a sewing-machine. A is the mainshai't. B is the eccentric thereon. U is a pitman connected by pin a to bell-crank lever D, the longest arm of whichhas a slot, 6. Said lever is pivoted to the bed X bystud F. E is a rock-shaft, which is intended to carry a shuttle by a suitable fixture at its front end, and has 'a crank, g, fixed to its rear end. G is a crank pin, entering slot 6 of the Bell-crank lever D. H is arevolvingfeed-operating shaft, having a crank, O. l is a pitman-lever connected at one end to the pitman O by stud K,
its other end being connected to the crank 0- (No model.)
Motion being given to the main shaft A, the eccentric B imparts a reciprocating motion to the pitman O and the bell-crank D through the pin a, and from said bell-crank to the rockshai't E through the pin G and crank g. The pitmanlever I, being fulcrumed at d to the radius-bar R and pivoted to the pitman (J, receivesavertical and lateral motion. Its lower end passes around the center of the shaft H, and, being connected to the crank 0 by the link N, gives the shaft H a rotary motion. This rotary shaft is intended to operate a feedbar by the usual connections.
The pitman-lever may be connected directly to the eccentric by having a wider face on the eccentric, and the pitman-lever having an enlarged eye or strap to span the eccentric; ora separate eccentric maybe provided for it, instead oif being pivoted to the pitman O at K, and a slot and pin may be used instead of the radius-bar, and other changes may be made without departing from the spirit of my invention.
Having described my invention, I claim- The combination of the shaft A,.eccentric B, pittnan O, lever D,- crank y, and shaft E with the pitman-lever I, radius-bar R, link N, crank 0, and shaft H, substantially as set forth.
, THOS. A. MAGAULAY.
Witnesses:
W. A. JONES, J. S. BROWN.
Publications (1)
Publication Number | Publication Date |
---|---|
US269218A true US269218A (en) | 1882-12-19 |
Family
ID=2338463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US269218D Expired - Lifetime US269218A (en) | Thomas a |
Country Status (1)
Country | Link |
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US (1) | US269218A (en) |
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0
- US US269218D patent/US269218A/en not_active Expired - Lifetime
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