US57010A - Improvement in presser-feet of sewing-machines - Google Patents
Improvement in presser-feet of sewing-machines Download PDFInfo
- Publication number
- US57010A US57010A US57010DA US57010A US 57010 A US57010 A US 57010A US 57010D A US57010D A US 57010DA US 57010 A US57010 A US 57010A
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- US
- United States
- Prior art keywords
- sewing
- machines
- presser
- improvement
- feet
- 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
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/06—Presser feet
Definitions
- Holes 12 3, Fig. l, are for the purpose of changing the tension of spring P to fit stock of various thicknesses.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Description
A. J. TEWKSBURY.
Presser Foot of Sewing Machines.
No. 57,010. Patented Aug. 7; 1866.
A. J. TEWKSBURY, HAVERHILL, MASSACHUSETTS.
IMPROVEMENT IN PRESSER-FEET OF SEWING-MACHINES.
Specification forming part of Letters Patent No. 57,010, dated August 7, 1866.
To all whom it may concern:
Be it known that I, A. J. TEWKSBURY, of Haverhill, county of Essex, and State of Massachusetts, have invented a new and useful Improvement in Pressure-Pads for Sewing- Machines, whereby a considerable saving of stock may be effected; and I do hereby declare two thicknesses upon the right-hand side of wheel W and only one thickness upon the left-hand side, arm A, operated by spring P, forcing material L down upon the left-hand side, as shown, thus producing a uniform pressure upon the whole width of the feed- Wheel, whereas, without my device, material L must be sufficiently increased in width to cover the whole edge or feeding-surface of wheel W in order that the machine may feed properly; but with my device attached to the ordinary solidpressure-pad this surplus stock may be saved upon each and every article stitched.
Holes 12 3, Fig. l, are for the purpose of changing the tension of spring P to fit stock of various thicknesses.
I do notclaim constructing a flexible pressurepad-that is, a pressure-pad consisting of two or more parts or toes operating independentl vthis having already been done; but
What I do claim, and desire to secure by Letters Patent, is
1. The devices hereinbefore described, consisting of arm A, screw S, and spring P, and affixing the same to the ordinary solid pressure-pad for the purpose of changing it into a flexible pressure-pad, and applying the whole in connection with the feed-wheel of a sewingmachine, as and for the purpose set forth.
2. In combination with the above, the holes 1 2 3, whereby the degree of pressure of the spring P upon arm A may be adjusted for different thicknesses of material.
ANDREW J. TEWKSBURY.
Witnesses:
EDMUND KIMBALL, SUMNER H. BOYNTON.
Publications (1)
Publication Number | Publication Date |
---|---|
US57010A true US57010A (en) | 1866-08-07 |
Family
ID=2126550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US57010D Expired - Lifetime US57010A (en) | Improvement in presser-feet of sewing-machines |
Country Status (1)
Country | Link |
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US (1) | US57010A (en) |
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0
- US US57010D patent/US57010A/en not_active Expired - Lifetime
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