US122422A - Improvement in treadles for sewing-machines - Google Patents
Improvement in treadles for sewing-machines Download PDFInfo
- Publication number
- US122422A US122422A US122422DA US122422A US 122422 A US122422 A US 122422A US 122422D A US122422D A US 122422DA US 122422 A US122422 A US 122422A
- Authority
- US
- United States
- Prior art keywords
- treadles
- sewing
- machines
- improvement
- lever
- 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
- 210000002683 Foot Anatomy 0.000 description 10
- 210000000474 Heel Anatomy 0.000 description 6
- 210000003371 Toes Anatomy 0.000 description 6
- 206010022114 Injury Diseases 0.000 description 4
- 230000000881 depressing Effects 0.000 description 4
- 230000000266 injurious Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 210000003205 Muscles Anatomy 0.000 description 2
- 240000006092 Sandoricum koetjape Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/14—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for operation by a part of the human body other than the hand, e.g. by foot
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/30—Controlling members actuated by foot
- G05G1/40—Controlling members actuated by foot adjustable
- G05G1/405—Controlling members actuated by foot adjustable infinitely adjustable
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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
- Y10T74/20—Control lever and linkage systems
- Y10T74/20576—Elements
- Y10T74/20888—Pedals
- Y10T74/20894—Treadles
Definitions
- Treadles asordinarily arran ged, are either pivoted at their middle, so that a rocking toeand-heel motion of the feet is necessary, or else pivoted at their back ends, so that the motion is produced entirely by the toes; and generally they are so arranged that both feet must move together.
- My invention consists in pivoting the two treadles oi" sandalsat their toes and connecting them to a vibrating bar so as to move alternately, whereby I produce a motion of the feet very similar to that in walking, and bring into play those mu scles which may be used for a long time without fatigue or injury.
- Figure 1 is a plan View of a pair of treadles arranged on myplan
- Fig. 2 is a side view of the same with a portion broken away, as indicated by the dotted lines inFig. l. I a
- A represents an iron base or support provided with two feet, 0, to rest upon the'floor, and with a rear arm, 11, and two horizontal journals or arms, b, on opposite sides.
- B are the treadles or sandals, mounted at or near their toes upon the journals b of the base, each treadle being formed'with an arm, 0, at its front end.
- 0 is a vibrating lever, pivoted near one end to the arm I) of the base, and provided 7 on each side of its pivot or fulcrum with a plate or link, d, through the lower ends of which links the arms 0 of the respective treadles pass, as shown.
Description
J. H. WHITNEY.
l mp'rovemeint i:n Treadles for Sewing Machines.
NO. 122,422. PatentedJamZ, 1872.
JOHN'H. WHITNEY, OF ROCHESTER, MINNESOTA.
IMPROVEMENT IN TREADLES FOR SEWING-MACHINES.
Specification forming part of Letters Patent No. 122,422, dated January 2, 1872.
SPECIFICATION. To all whom it may concern:
Be it known that 1, JOHN H; WHITNEY, of Rochester, in the county of Olmsted and State of Minnesota, have invented certain Improvetents in Treadles for Sewing-Machines, 850., of which. the following is a specification, reference being had to the accompanying drawing.
The object of my invent-ion is' to produce a treadle for driving sewing-machines and for similar purposes, which may be operated with greater ease and without the injurious effects of those now in general use. Treadles, asordinarily arran ged, are either pivoted at their middle, so that a rocking toeand-heel motion of the feet is necessary, or else pivoted at their back ends, so that the motion is produced entirely by the toes; and generally they are so arranged that both feet must move together.
In either case an unnatural motion of the foot is required, and muscles brought into play which are not otherwise used, the result of which is that the operation is very fatiguing,
and also, to females and persons of delicate constitutions, very injurious. My invention consists in pivoting the two treadles oi" sandalsat their toes and connecting them to a vibrating bar so as to move alternately, whereby I produce a motion of the feet very similar to that in walking, and bring into play those mu scles which may be used for a long time without fatigue or injury.
In the drawing, Figure 1 is a plan View of a pair of treadles arranged on myplan, and Fig. 2 is a side view of the same with a portion broken away, as indicated by the dotted lines inFig. l. I a
A represents an iron base or support provided with two feet, 0, to rest upon the'floor, and with a rear arm, 11, and two horizontal journals or arms, b, on opposite sides. B are the treadles or sandals, mounted at or near their toes upon the journals b of the base, each treadle being formed'with an arm, 0, at its front end. 0 is a vibrating lever, pivoted near one end to the arm I) of the base, and provided 7 on each side of its pivot or fulcrum with a plate or link, d, through the lower ends of which links the arms 0 of the respective treadles pass, as shown. I
The parts being thus arranged, it will be seen that upon depressing the heel of the righthand treadle its arm 0 will tip the lever O and throw the outer end of the same up, and that upon depressing the heel of the left-hand treadle it will tip the lever G in the opposite direction and throw its end down. As the end of one treadle descends the end of'the other is raised by the lever O,so that the two treadles must-move alternately, so that when operated they throw the end of the lever 0 up and down. The lever has its end connected by a pitman with the crank-shaft of the machine to be operated so as to communicate motion thereto.
To facilitate the application of the treadles to sewing-machines, especially those already in use provided with treadles of the ordinary arrangement, I provide the base A with perforated ears 8, which may be slipped onto the usualv treadle-shaft, the ears being provided with set screws for fastening them in place, as shown. It will be observed that with my treadles the whole pressure is applied and the work done by the heels of the operator, and that the treadles, instead of moving together, more alternately, by which arrangement they are rendered easy of operation and injury to the operator avoided.
Having thus described my machine, What I claimis- 1. The treadles B, pivoted at their forward ends, and provided with arms 0, in combination with the vibrating lever O, when arranged to operate as described.
2. In combination with the treadles B and lever (J, the base or support A, provided with ears 8 for attaching it to the ordinary sewingmachine, as set forth.
JOHN H. WHITNEY.
T. H. Tires. 134.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US122422A true US122422A (en) | 1872-01-02 |
Family
ID=2191861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US122422D Expired - Lifetime US122422A (en) | Improvement in treadles for sewing-machines |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US122422A (en) |
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0
- US US122422D patent/US122422A/en not_active Expired - Lifetime
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