US40736A - Improvement in shuttles for sewing-machines - Google Patents
Improvement in shuttles for sewing-machines Download PDFInfo
- Publication number
- US40736A US40736A US40736DA US40736A US 40736 A US40736 A US 40736A US 40736D A US40736D A US 40736DA US 40736 A US40736 A US 40736A
- Authority
- US
- United States
- Prior art keywords
- shuttle
- sewing
- machines
- shuttles
- thread
- 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
- 238000010276 construction Methods 0.000 description 4
- 210000003323 Beak Anatomy 0.000 description 2
- 230000036461 convulsion Effects 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 230000013707 sensory perception of sound Effects 0.000 description 2
Images
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/26—Bobbin holders or casings; Bobbin holder or case guards; Bobbin discharge devices
Definitions
- My invention relates to that class of sewing-machines in which a shuttle is employed; and it consists in certain devices whereby a more perfect tension can be obtained than could be done by the means heretofore in use.
- the shuttle represented in the accompanyingdrawings is double the size that are usually made. It consists of a case in the beak of which is a cylindrical aperture designed to contain a piston, H, backed by a helical compression-spriug, J.
- the piston is capable of a play in the direction of its axis, but is confined within the cavity or aperture above referred to by means of a screw or pin, I.
- a polished tension-roller, B held in place by means of a watch-spring and hook A at the one end and by the head of thescrew G at the other end, the head of the screw being indented to allow of the taking out of or'replacing of the tension-roller in the shuttle-case, as shown.
- the roller has annular hearings to allow it freely to revolve on its axis.
- the thread from the bobbin before issuing from the shuttle-case is passed through an eye, D, and then through a'hole or holes in the shuttlecase, each of which is lined with a polished eyelet. 1
Description
UNITED STATES PATENT 1 UFEICE.
JOSEPH COIGNARD, or 'NANTES, F am.
IMPROVEMENT lN SHUTTLES FOR SEWING-MACHINES.
Specification forming part of Letters Patent No. 40,736, dated December 1, 1863.
To all whom it may concern:
Be it known that I, JOSEPH GOIGNARD, of Nantes,in the Empire of France, haveinvented a new and useful Improvement in Shuttles for Sewing-Machines; and I hereby declare that the following is a full, clear, and exact description of the same, reference being had to details representing respectively the butt-end of the spool or bobbin and its spring-socket; I Figs. 5, 6, and 7, also details, representing respectively the tension-roller and the means used for maintaining it in place.
My invention relates to that class of sewing-machines in which a shuttle is employed; and it consists in certain devices whereby a more perfect tension can be obtained than could be done by the means heretofore in use.
The objection to shuttle sewingmachines consists in the necessity of frequently varying the tension of the shuttle-thread according to the material used, which with the means heretofore in use is always a troublesome operation; but the great deficiency and fatal objection is due to the chafing of the thread when passed at great speeds through the tension-holes now generally used, whereby the thread is weakened to such extent as to cause frequent breakages. On the other hand, the harsh tension produced by passing the thread through sharp-edged holes does not always yield the thread in conformity with the movements of the shuttle,theconsequenceof which is the missing of stitches. By myimprovement I have remedied these and other defects.
To enable others to make and use this invention, I shall now proceed to describe the construction and operation of my improved shuttle-tension device.
The shuttle represented in the accompanyingdrawings is double the size that are usually made. It consists of a case in the beak of which is a cylindrical aperture designed to contain a piston, H, backed by a helical compression-spriug, J. The piston is capable of a play in the direction of its axis, but is confined within the cavity or aperture above referred to by means of a screw or pin, I.
On the outer end of the piston there is a central hole, in which the pointed .end of the bobbin-axle F rests, the opposite end of the said axle bearing in a cavity or socket in the opposite or butt end G of the shuttle-case. To enter or remove the bobbin it is only necessary to press it slightly against the piston, which, compressingthe spring in the rear thereof, will free the axle from its hold in the cavity in the butt of the shuttle-case, and thus allow the removal of the bobbin. The same operation is performed for inserting the bobbin. I
On one side of the bobbin there is provided a polished tension-roller, B, held in place by means of a watch-spring and hook A at the one end and by the head of thescrew G at the other end, the head of the screw being indented to allow of the taking out of or'replacing of the tension-roller in the shuttle-case, as shown. The roller has annular hearings to allow it freely to revolve on its axis. The thread from the bobbin before issuing from the shuttle-case is passed through an eye, D, and then through a'hole or holes in the shuttlecase, each of which is lined with a polished eyelet. 1
The operation of this device will be readily understood from the drawings. The thread, instead of being carried through the series of holes against the sharp edges of which it is rubbed, is carried over a smooth and freely-- revolving roller, so that the least strain upon the thread will cause it to be unwound with a degree of tension proportionate to the number of turns or windings upon and around the roller.
By the employment of this device the thread is not liable to be chafed or broken by the sudden jerks of the shuttle. For further security against the deterioration of the thread, I form a smooth lining of the shuttle-case by means of a metallic eyelet.
I am aware that the bobbin has been held by means of springs; but such mode of holding the bobbin is liable to the objection, particularly in large machines, that their strength is inadequate, and often break; but my mode of holding the axle by means of a pistoneft'ectually remedies this defect.
Having thus fully described my invention, I In testimony whereof I have signed my name clain1 v to this specification before two subscribing wit- In sewing-machine shuttles of otherwise nesses.
ordinary or suitable construction, the combination of a polished tension roller or cylinder JOSEPH 'OOIGNARD.
held within the cavity of the shuttle, as described, with polished metallic eyelets lining Witnesses:
the holes of the shuttle, through which the I. PINSON,
thread passes, substantially asherei 11 set forth. A. DARRY.
Publications (1)
Publication Number | Publication Date |
---|---|
US40736A true US40736A (en) | 1863-12-01 |
Family
ID=2110306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US40736D Expired - Lifetime US40736A (en) | Improvement in shuttles for sewing-machines |
Country Status (1)
Country | Link |
---|---|
US (1) | US40736A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080188297A1 (en) * | 2007-02-05 | 2008-08-07 | Atlantic City Coin & Slot Service Company, Inc. | Progressive gaming device and method of use |
US20080188295A1 (en) * | 2007-02-05 | 2008-08-07 | Atlantic City Coin & Slot Service Company, Inc. | Progressive gaming device and method of use |
-
0
- US US40736D patent/US40736A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080188297A1 (en) * | 2007-02-05 | 2008-08-07 | Atlantic City Coin & Slot Service Company, Inc. | Progressive gaming device and method of use |
US20080188295A1 (en) * | 2007-02-05 | 2008-08-07 | Atlantic City Coin & Slot Service Company, Inc. | Progressive gaming device and method of use |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US29448A (en) | Improvement in sewing-machines | |
US40736A (en) | Improvement in shuttles for sewing-machines | |
US42801A (en) | Tension-indicator for sewing-machines | |
US1072687A (en) | Embroidery-hoop. | |
US223133A (en) | Improvement intension-regulators for sewing-machines | |
US43426A (en) | Improvement in sewing | |
US78057A (en) | church | |
US31757A (en) | Improvement in sewing-machine needles | |
US40000A (en) | Improvement in sewing-machines | |
US31211A (en) | Improvement in sewing-machines | |
US59088A (en) | Improvement in sewing-machine shuttles | |
US42706A (en) | Improvement in tension devices for sewing-machine shuttles | |
US60682A (en) | bruen | |
US56990A (en) | Improvement in sewing-machines | |
US35493A (en) | Improvement in spools for sewing-thread | |
US106092A (en) | Improvement in needle tor sewing-machine | |
US460745A (en) | William duchemin | |
US992452A (en) | Shuttle. | |
US19141A (en) | Improvement in sewing-machines | |
US105778A (en) | Improvement in spool of thread for sewing-machine shuttles | |
US1278262A (en) | Bobbin for sewing-machne shuttles. | |
US81825A (en) | Improvement in beel | |
US29224A (en) | Improvement in shuttles for sewing-machines | |
US648393A (en) | Bobbin for sewing-machine shuttles. | |
US57514A (en) | Improvement in sewing-machine bobbins |