US172500A - Improvement in tension mechanisms for sewing-machines - Google Patents
Improvement in tension mechanisms for sewing-machines Download PDFInfo
- Publication number
- US172500A US172500A US172500DA US172500A US 172500 A US172500 A US 172500A US 172500D A US172500D A US 172500DA US 172500 A US172500 A US 172500A
- Authority
- US
- United States
- Prior art keywords
- sewing
- machines
- improvement
- tension mechanisms
- wheel
- 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
Images
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B47/00—Needle-thread tensioning devices; Applications of tensometers
- D05B47/02—Manually-controlled tensioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Definitions
- My invention relates to an improved tension mechanism for sewing-machines and it consists in the arrangement and combination of devices, that will be more fully described hereinafter, whereby the tension upon each sized thread can be most accurately adjusted by means of a friction-brake and mo able weight.
- a represents a small metallic frame, that is to be attached to the machine in any suitable manner or place.
- the frictionwheel d Placed upon the set-screw c, which screws into this frame, is the frictionwheel d, turning loosely thereon, and provided with a flange, e, formed on its outer, side, that fits in the opening inthe center of the disk 9 like a tenon into a socket.
- a flange, e formed on its outer, side
- lever h the short end of which is provided with a suitable friction-brake for bearing up against the friction- Wheel d, while the outer end carries the weight 2', that is adjusted back and forth toward ei ther end by means of the screw j.
- On the side of this long lever are marked and numbered gradations or spaces, as shown, which corre spond to the different-sized thread that is made and sold.
- the weight By turning the screw j, by means of the small hand-wheel l on its outer end, the weight can be adjusted back and forth to any number desired, and thus the tension accurately adjusted for each different thread.
- the guide 2 Secured to the arm 0', that projects up from the frame a, is the guide 2, that guides the thread to or from the disk 9, and which consists of a horizontal notched arm and a fiat spring upon its top.
Description
'c. F m'rcnm.
wENsIon-mcmmsm FOP. SEWING-MACHINES. Nu.17Z,500; Patented 32.11.18, 1876.
VVITNESEESE N-PEFERS. PHOTO-LITHOGRAFNER, WASHINGTON, DC.
UNITED STATES PATENT OFFICE,
CHARLES F. RITCHEL, OF COREY, PENNSYLVANIA, ASSIGNOR OF ONE-HALF HIS RIGHT T0 ADAMS DAVIS, OF SAME PLACE.
IMPROVEMENT IN TENSION'MECHANISMS FOR SEWING-MACHINES Specification forming part of Letters Patent No. 172,500, dated January 18, 1876; application filed December 27, 1875.
To all whom it may concern Be it known that I, CHARLES F. RITcHEL, of Corry, in the county of Erie and vState of Pennsylvania, have invented certain new and useful Improvements in Tension Mechanism for Sewing-Machines; and I do hereby declare the following to be a full, clear, and exact de scription of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had. to the accompanying drawings, which form part of this specification.
My invention relates to an improved tension mechanism for sewing-machines and it consists in the arrangement and combination of devices, that will be more fully described hereinafter, whereby the tension upon each sized thread can be most accurately adjusted by means of a friction-brake and mo able weight.
The accompanying drawings represent my invention.
a represents a small metallic frame, that is to be attached to the machine in any suitable manner or place. Placed upon the set-screw c, which screws into this frame, is the frictionwheel d, turning loosely thereon, and provided with a flange, e, formed on its outer, side, that fits in the opening inthe center of the disk 9 like a tenon into a socket. As the wheel at and disk 9 are attached together by frictional contact, when the disk is moved by the passage of the thread between its edges the Wheel will turn with it. Pivoted to the frame a, at
any suitable point, is the lever h, the short end of which is provided with a suitable friction-brake for bearing up against the friction- Wheel d, while the outer end carries the weight 2', that is adjusted back and forth toward ei ther end by means of the screw j. On the side of this long lever are marked and numbered gradations or spaces, as shown, which corre spond to the different-sized thread that is made and sold.
By turning the screw j, by means of the small hand-wheel l on its outer end, the weight can be adjusted back and forth to any number desired, and thus the tension accurately adjusted for each different thread.
.Of course,'the farther from the center of motion, or fulcrum, the weight is moved, the greater the pressure of the brake on the wheel, and therefore the numbers corresponding to the coarser threads are placed on the outer end of the lever.
Secured to the arm 0', that projects up from the frame a, is the guide 2, that guides the thread to or from the disk 9, and which consists of a horizontal notched arm and a fiat spring upon its top.
Having thus described my invention, I claim- 1.. The combination of the friction wheel d,
having the flange e, disk g, having double edges to receive the thread, by which it is turned, and which tits on the said flange,with
the weighted lever h, substantially as shown. 2. The combination of the frame a, Wheel 61, disk g, weighted lever h i, and screw j, sub stantially as specified.
In testimony that I claim the foregoing I have hereunto set my hand this 22d day of December, 1875.
CHARLES F. RITGHEL.
Witnesses:
I. B. BROWN, H. S. HAYNES.
Publications (1)
Publication Number | Publication Date |
---|---|
US172500A true US172500A (en) | 1876-01-18 |
Family
ID=2241907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US172500D Expired - Lifetime US172500A (en) | Improvement in tension mechanisms for sewing-machines |
Country Status (1)
Country | Link |
---|---|
US (1) | US172500A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2554493A (en) * | 1947-08-22 | 1951-05-29 | Specialties Dev Corp | Yarn tensioning device |
-
0
- US US172500D patent/US172500A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2554493A (en) * | 1947-08-22 | 1951-05-29 | Specialties Dev Corp | Yarn tensioning device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US172500A (en) | Improvement in tension mechanisms for sewing-machines | |
US1213187A (en) | Churn. | |
US199836A (en) | Improvement in devices for operating reciprocating churn-dashers | |
US211536A (en) | Improvement in pulley attachments to sewing-machines | |
US923402A (en) | Balancing-machine. | |
US164413A (en) | Improvement in mechanical movements | |
US479272A (en) | Variable feed for sawmills | |
US123054A (en) | Improvement in tension mechanism for sewing-machines | |
US495749A (en) | Island | |
US451627A (en) | stepp | |
US1070931A (en) | Screw-operated lever. | |
US632613A (en) | Furniture-brace. | |
US365965A (en) | Line-hitching device | |
US396244A (en) | Intermittent grip device | |
US622123A (en) | Fan attachment for rocking-chairs | |
US109740A (en) | Improvement in friction-clutches | |
US228276A (en) | Clutch | |
US111479A (en) | Improvement in journal-boxes | |
US127129A (en) | Improvement in motors for sewing-machines | |
US429763A (en) | kalbe | |
US150433A (en) | Improvement in adjustable journal-boxes | |
US38608A (en) | Improvement in crank-motion | |
US488699A (en) | Sash-balance | |
US177811A (en) | Improvement in noiseless pawls | |
US79082A (en) | Improvement in oegans |