US492930A - Sewing-machine shuttle - Google Patents
Sewing-machine shuttle Download PDFInfo
- Publication number
- US492930A US492930A US492930DA US492930A US 492930 A US492930 A US 492930A US 492930D A US492930D A US 492930DA US 492930 A US492930 A US 492930A
- Authority
- US
- United States
- Prior art keywords
- cop
- sewing
- shuttle
- thread
- holder
- 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
- 238000009958 sewing Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000003831 Wilkinson decarbonylation reaction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 229910001651 emery Inorganic materials 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 101700005195 prel Proteins 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002699 waste material Substances 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
- My invention relates to an improvement in sewing machine shuttles adapted to receive a cop of thread to be unwound and fed to the machine from the center of the cop. It is found in practice, that, as the central portion of the cop is removed by the feeding of the thread therefrom the outer portion of the cop is liable to collapse and producea snarl which both hinders the progress of the sewing and produces a waste of thread. To remedy this trouble the cops have heretofore been provided with thin pieces of paper pasted to their opposite sides to afford the necày rigidity to prevent the collapsing.
- the object of my present invention is to fit the shuttles themselves with means for preventing the aforesaid collapsing, and thereby save the labor and expense of the special stiffening mechanism for eachindividual cop.
- Figure 1 is an inside view of the shuttle and cop holder each fitted with a cop retaining surface.
- Fig. 2 is a view of the holder showing the retaining surface extending only part of the distance from the periphery to the center, and
- Fig. 3 represents a cop of thread, partially unwound.
- the shuttle which I have selected to represent my invention is of the oscillating type but the invention is applicable to any shuttle in which a disk-like cop of thread is employed.
- A represents the shuttle having the circular pocket at for the reception of a cop B, of thread
- C represents the cop holder.
- the inner surface of the pocket or of the holder, one or both, where it comes in contact with the sides of the cop B, is roughened or rendered yielding so as to afford a frictional engagement with the cop.
- the frictional surface may be formed by securing a thin layer of leather or other yielding material on the inner face of either the shuttle or holder or both as shown at D, or the inner face of either the shuttle or holder or both may be roughened by burrs or scratches as shown at D, or an emery or sand faced sheet of material might be employed as shown at D
- the frictional surface may extend from the periphery of the pocket or holder to the center or only part of the distance sufficient to engage the side of the cop to a depth corresponding to the depth of the cop before a sufficient amount of the central portion is removed to allow it to collapse.
- a sewing machine shuttle provided with 65 means for securing a cop of thread thereto, and having and presenting an especially prel pared retaining surface in position to engage the side of the cop of thread from its extreme outer edge toward the center to prevent the 70 collapsing of the cop, substantially as set forth.
Description
(Nomodel') 0. E. WILKINSON.
SEWING MACHINE SHUTTLE.
No. 492,930. Patented Mar. 7, 1893.
v w W THE NORRIS Pnsns co. vnoTuumofl wAsmN'cTom o c.
CHARLES E. WILKINSON, OF NEW HAVEN, CONNECTICUT.
SEWING-MACHINE SHUTTLE.
@IPECIFIGATION forming part of Letters Patent No. 492,930, dated March '7, 1893.
.Application filed June 24, 1891. $erial No. 397,314:- (No model.)
To all whom it may concern:
Be it known that I, CHARLES E. WILKIN- SON, of New Haven, in the county of New Haven and State of Connecticut, have invented a new and useful Improvement in Sewing-Machine Shuttles, of which the following is a specification.
My invention relates to an improvement in sewing machine shuttles adapted to receive a cop of thread to be unwound and fed to the machine from the center of the cop. It is found in practice, that, as the central portion of the cop is removed by the feeding of the thread therefrom the outer portion of the cop is liable to collapse and producea snarl which both hinders the progress of the sewing and produces a waste of thread. To remedy this trouble the cops have heretofore been provided with thin pieces of paper pasted to their opposite sides to afford the necessaiy rigidity to prevent the collapsing.
The object of my present invention is to fit the shuttles themselves with means for preventing the aforesaid collapsing, and thereby save the labor and expense of the special stiffening mechanism for eachindividual cop.
A practical embodiment of my invention is represented in the accompanying drawings, in which: i
Figure 1 is an inside view of the shuttle and cop holder each fitted with a cop retaining surface. Fig. 2 is a view of the holder showing the retaining surface extending only part of the distance from the periphery to the center, and Fig. 3 represents a cop of thread, partially unwound.
The shuttle which I have selected to represent my invention is of the oscillating type but the invention is applicable to any shuttle in which a disk-like cop of thread is employed. 40
A represents the shuttle having the circular pocket at for the reception of a cop B, of thread, and C represents the cop holder. The inner surface of the pocket or of the holder, one or both, where it comes in contact with the sides of the cop B, is roughened or rendered yielding so as to afford a frictional engagement with the cop. The frictional surface may be formed by securing a thin layer of leather or other yielding material on the inner face of either the shuttle or holder or both as shown at D, or the inner face of either the shuttle or holder or both may be roughened by burrs or scratches as shown at D, or an emery or sand faced sheet of material might be employed as shown at D The frictional surface may extend from the periphery of the pocket or holder to the center or only part of the distance sufficient to engage the side of the cop to a depth corresponding to the depth of the cop before a sufficient amount of the central portion is removed to allow it to collapse. 7 7 What I claim is- A sewing machine shuttle provided with 65 means for securing a cop of thread thereto, and having and presenting an especially prel pared retaining surface in position to engage the side of the cop of thread from its extreme outer edge toward the center to prevent the 70 collapsing of the cop, substantially as set forth.
CHARLES E. WILKINSON.
Witnesses: I
FREDK. HAYNES, GEORGE BARRY.
Publications (1)
Publication Number | Publication Date |
---|---|
US492930A true US492930A (en) | 1893-03-07 |
Family
ID=2561773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US492930D Expired - Lifetime US492930A (en) | Sewing-machine shuttle |
Country Status (1)
Country | Link |
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US (1) | US492930A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090287184A1 (en) * | 2005-05-02 | 2009-11-19 | Martin Nicholas Lee | Autoflush Syringe Method |
-
0
- US US492930D patent/US492930A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090287184A1 (en) * | 2005-05-02 | 2009-11-19 | Martin Nicholas Lee | Autoflush Syringe Method |
US20100114068A2 (en) * | 2005-05-02 | 2010-05-06 | Martin Lee | Autoflush Syringe Method |
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