US142704A - Improvement in treadles for sewing-machines - Google Patents
Improvement in treadles for sewing-machines Download PDFInfo
- Publication number
- US142704A US142704A US142704DA US142704A US 142704 A US142704 A US 142704A US 142704D A US142704D A US 142704DA US 142704 A US142704 A US 142704A
- Authority
- US
- United States
- Prior art keywords
- sewing
- machines
- treadles
- improvement
- wrist
- 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
- 210000000707 Wrist Anatomy 0.000 description 12
- 210000002683 Foot Anatomy 0.000 description 4
- 210000003414 Extremities Anatomy 0.000 description 2
- 210000000474 Heel Anatomy 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
- F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
- F16H21/18—Crank gearings; Eccentric gearings
- F16H21/38—Crank gearings; Eccentric gearings with means for temporary energy accumulation, e.g. to overcome dead-centre positions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18056—Rotary to or from reciprocating or oscillating
- Y10T74/18144—Overcoming dead center
Definitions
- the invention consists in two pedals pivoted on the lower shaft of the frame, the one being connected by a rod from an offset at its front end to the crank-pin of the driving-wheel, and the other by a rod connecting an offset from its rear end to the said crank-pin, or, when applied to the machine as ordinarily constructed, to a wrist near the top of the usual connecting-rod.
- A represents a portion of the standard of a sewingmachine
- B the drivingwheel mounted on a shaft journaled in the standard, and having a Wrist-pin, a.
- O is a shaft at the lower part of the standard, on which the pedals D D are sleeved independently of each other.
- the right pedal D is molded with an offset'eXtending laterally to the right and rear from its heel, with a wrist at its extremity, which is connected to the wrist of the drivingwheel by a pitman, E.
- the left pedal D has now in use the machine can always be started in the right direction by the foot.
- one pitman may be pivoted at its upper end to a Wrist projecting from the other pitman near its top, which is connected to the wrist or crank pin of the driving-wheel; or a new p wrist-pin long enough to have both pitmen strapped to it may be supplied.
Description
M.H. KNAPP.
Treadles forSewing-Machines. N No. 142,704. A PatentedSeptembermmn,
NTTED STATES PATENT OFFICE.
MYRON H. KNAPP, OF FULTON, NEW YORK.
IMPROVEMENT IN TREADLES FR SEWING-MACHINES.
Specification forming part of Letters Patent No. 142,704, dated September 9, 1873 application filed July 25, 1873.
that of the single treadle, where the feet are lnoved in unison. The invention consists in two pedals pivoted on the lower shaft of the frame, the one being connected by a rod from an offset at its front end to the crank-pin of the driving-wheel, and the other by a rod connecting an offset from its rear end to the said crank-pin, or, when applied to the machine as ordinarily constructed, to a wrist near the top of the usual connecting-rod.
A represents a portion of the standard of a sewingmachine, and B the drivingwheel mounted on a shaft journaled in the standard, and having a Wrist-pin, a. O is a shaft at the lower part of the standard, on which the pedals D D are sleeved independently of each other. The right pedal D is molded with an offset'eXtending laterally to the right and rear from its heel, with a wrist at its extremity, which is connected to the wrist of the drivingwheel by a pitman, E. The left pedal D has now in use the machine can always be started in the right direction by the foot.
Where the improvement is to be applied to a machine having the ordinary single treadle, one pitman may be pivoted at its upper end to a Wrist projecting from the other pitman near its top, which is connected to the wrist or crank pin of the driving-wheel; or a new p wrist-pin long enough to have both pitmen strapped to it may be supplied.
By means of cones the pedals D D may be fitted to most sewing-machines now made.
What I claim as my invention, and desire to secure by Letters Patent, is-
rlhe pedals D Dl and pitman-rods E E constructed and arranged, with relation to the shaft O, and wrist a, and driving-wheel B of a sewing-machine, substantially as and for the purpose set forth.
MYRON H. KNAPP.
Witnesses:
EDMUND BARTLETT, WILLIAM MONROE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US142704A true US142704A (en) | 1873-09-09 |
Family
ID=2212117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US142704D Expired - Lifetime US142704A (en) | Improvement in treadles for sewing-machines |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US142704A (en) |
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0
- US US142704D patent/US142704A/en not_active Expired - Lifetime
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