US116830A - Improvement in treadles for sewing-machines - Google Patents

Improvement in treadles for sewing-machines Download PDF

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Publication number
US116830A
US116830A US116830DA US116830A US 116830 A US116830 A US 116830A US 116830D A US116830D A US 116830DA US 116830 A US116830 A US 116830A
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Prior art keywords
treadles
sewing
machines
treadle
improvement
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/02Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/14Operating 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
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05GCONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/30Controlling members actuated by foot
    • G05G1/40Controlling members actuated by foot adjustable
    • G05G1/405Controlling members actuated by foot adjustable infinitely adjustable
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/18Mechanical movements
    • Y10T74/18056Rotary to or from reciprocating or oscillating
    • Y10T74/18144Overcoming dead center
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/18Mechanical movements
    • Y10T74/18056Rotary to or from reciprocating or oscillating
    • Y10T74/18184Crank, pitman, and lever
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/20Control lever and linkage systems
    • Y10T74/20576Elements
    • Y10T74/20888Pedals
    • Y10T74/20894Treadles

Definitions

  • My invention consists in improving treadles, as hereinafter fully described ⁇ and subsequently pointed out in the claim.
  • Ain the drawing represents a treadle of suitable shape. It isarlixed to the lower portions of a U-shaped axle, B, which has its upper ends hung in the frame O of the machine.
  • the depression in the axle is such that when the foot is on the treadle its ankle-joint will be about in line with the said ends.
  • the foot is preferably applied so that the heel is behind the line oi'- the axle, as in Fig. 1; thereby a mere oscillation of the foot on its ankle-joint will suffice to impart the proper motion to the treadle and to the ma ⁇ chinery connected therewith.
  • the feet I may use the cushion or pressure-pad D in connection with my said treadle, said pad pressing ⁇ on the knees of the operator, as described in a previous applica tion filed by me.
  • E is a spring, applied against the under side of the treadle under the front end of the same, holding the same up far enough to enable the foot to apply power to the treadle and to move the same in the desired continuity from a state of rest.
  • Such a spring may, if desired, be as well applied, and with equal effect, to the pitman F, which connects with the treadle, as shown at d in Fig. 1.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Socks And Pantyhose (AREA)

Description

UNITED STATES JAMES W. W. GORDON, OF NEWPORT, KENTUCKY.
IMPROVEMENT IN TREADLES FCR SEWING-MACHINES.
Specification forming part of Letters Patent No. 116,830, dated July 11, 1871.
To all 'whom t may concern:
Be it known that I, JAMES W. W. GORDON, of Newport, in the county of Campbell and State of Kentucky, have invented a new and Improved Treadle for Sewing-Machines, 85e.; andI do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, rei'- erence being had to the accompanying drawing forming part of this specification, in which- Figure l represents a side view of my improved trcadle. Fig. 2 is a front view of the same.
Similar letters of reference indicate corresponding parts.
My invention consists in improving treadles, as hereinafter fully described` and subsequently pointed out in the claim.
Ain the drawing represents a treadle of suitable shape. It isarlixed to the lower portions of a U-shaped axle, B, which has its upper ends hung in the frame O of the machine. The depression in the axle is such that when the foot is on the treadle its ankle-joint will be about in line with the said ends. The foot is preferably applied so that the heel is behind the line oi'- the axle, as in Fig. 1; thereby a mere oscillation of the foot on its ankle-joint will suffice to impart the proper motion to the treadle and to the ma` chinery connected therewith. In order to still more simplify the action ofthe feet I may use the cushion or pressure-pad D in connection with my said treadle, said pad pressing` on the knees of the operator, as described in a previous applica tion filed by me. E is a spring, applied against the under side of the treadle under the front end of the same, holding the same up far enough to enable the foot to apply power to the treadle and to move the same in the desired continuity from a state of rest. Such a spring may, if desired, be as well applied, and with equal effect, to the pitman F, which connects with the treadle, as shown at d in Fig. 1.
By ina-king the foot swing on the ankle-joint the leg itself remains quite at rest, the knee not moving up and down, as on ordinary treadles. This admits the use ofthe bracing-cushion, above referred to.
Having thus described my invention, I claim as new and desire'to secure by Letters Patent- The foot-piece A, rockshaft B, and spring E, when constructed and arranged together, as described, to enable the ankle-joint ofthe operator to be always held in line with the center of motion ofthe treadle to save the waste of power in moving the entire lower limb at every vibration.
US116830D Improvement in treadles for sewing-machines Expired - Lifetime US116830A (en)

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