US247356A - hultqvist - Google Patents

hultqvist Download PDF

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Publication number
US247356A
US247356A US247356DA US247356A US 247356 A US247356 A US 247356A US 247356D A US247356D A US 247356DA US 247356 A US247356 A US 247356A
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United States
Prior art keywords
foot
board
treadle
hultqvist
shaft
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Expired - Lifetime
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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
    • 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

  • the object of my invention is to provide anew and improved treadle for sewing-machines, lathes, band sawing machines, 850., which can be operated more conveniently than the treadles in use heretofore, and with less strain on the operator.
  • the invention consists in a treadle whose foot-board rests upon bracket-shaped supports journaled on the shaft and projecting a short distance above the same, said supports being attached to the foot-board, about one-third of the length of the latter from the heel end.
  • the connecting rod is pivoted to a downward-projecting arm of the front end of the foot-board.
  • Figurel represents a central vertical section ofmy improved treadle
  • Fig. 2 a vertical section of the same through the line w of Fig. l.
  • bracket-shaped supports B The foot-board A of a treadle rests on bracket-shaped supports B, attached to the under side of the same, and loosely mounted on a rigid shaft, 0, of the frame D, or these bracket-shaped supports B are rigidly mounted on the shaft 0, which must then be journaled in the frame D.
  • These bracket-shaped supports are about two to three inches high, and consequently the shaft 0 must be located lower than it is ordinarily, so that the foot-board will not be too high.
  • the bracket-shaped supports-B are attached to the foot-board about one-third of the length of the foot-board from the heel end of the same.
  • the foot-board is provided atits front end with an outward and downward projecting arm, E, to the end of which the connecting-rod F is pivoted. When the foot-board is in a horizontal position the crank of the fly-wheel G will be in its lowest position, and consequently the front of the foot will (No model.)

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Sewing Machines And Sewing (AREA)

Description

(No Mpdel.) 2 Sheets-Sheet 1.
J. M. HULTQVIST.
TREADLE.
No. 247,356. Patented Sept. 20,1881.
INVENTOR WITNESSES: C/r W W 7w) J /r/ 13? mm ATTORNEYS.
(No Model.) 2 Sheets-Sheet 2.
J. M. HULTQVIST.
TREADLE.
No. 247,356. Patented Sept. 20,1881.
/l/Il/ll/l/A j 7 a E a WITNESSES: INVENTOR: H W E wag/02% BY ATTORNEYS.
UNITED STATES PATENT OFFICE.
JONAS MICHAEL HULTQVIST, OF STOOKHOLM, SWEDEN.
TREADLE.
SPEGIFICATION forming part of Letters Patent No. 247,356, dated September 20, 1881.
Application filed June 2, 1851.
To all whom it may concern Be it known that I, JONAS MrcHAnL HUL'r- QVIST, of Stockholm, Sweden, have invented certain useful Improvements in Treadles, of which the following is a specification.
The object of my invention is to provide anew and improved treadle for sewing-machines, lathes, band sawing machines, 850., which can be operated more conveniently than the treadles in use heretofore, and with less strain on the operator.
The invention consists in a treadle whose foot-board rests upon bracket-shaped supports journaled on the shaft and projecting a short distance above the same, said supports being attached to the foot-board, about one-third of the length of the latter from the heel end. The connecting rod is pivoted to a downward-projecting arm of the front end of the foot-board.
In the accompanying drawings, Figurel represents a central vertical section ofmy improved treadle, and Fig. 2 a vertical section of the same through the line w of Fig. l.
The foot-board A of a treadle rests on bracket-shaped supports B, attached to the under side of the same, and loosely mounted on a rigid shaft, 0, of the frame D, or these bracket-shaped supports B are rigidly mounted on the shaft 0, which must then be journaled in the frame D. These bracket-shaped supports are about two to three inches high, and consequently the shaft 0 must be located lower than it is ordinarily, so that the foot-board will not be too high. The bracket-shaped supports-B are attached to the foot-board about one-third of the length of the foot-board from the heel end of the same. The foot-board is provided atits front end with an outward and downward projecting arm, E, to the end of which the connecting-rod F is pivoted. When the foot-board is in a horizontal position the crank of the fly-wheel G will be in its lowest position, and consequently the front of the foot will (No model.)
never have to be bent downward, and as thefoot-board is not pivoted in the middle, but nearer the heel part, a considerable stroke of the front part of the foot-board can be obtained by depressing the heel part a very short distance only. A
It is much less tiresome to press upon the foot-board with the heel than with the front of the foot, and with this improved treadle but a very slight movement of the foot is required.
As less power is required to operate this treadle than to operate the treadles in use here.- tofore this treadle can be operated much more rapidly.
One of the great advantages of this treadle is that the front end of the foot need not be bent downward, as this movement of the foot is very apt to cause cramps.
Having thus fully described my invention, Iclaim as new and desire to secure by Letters Patent 1. A treadle made, substantially as herein shown and described, with the foot-board raised a short distance above the shaft, as and for the purpose set forth.
In a. trcadle, the combination, with the foot-board A and the shaft O, of the bracketshaped supports B,attached to the foot-board at or near the rear third of the same, substantially as herein shown and described, and for the purpose set forth.
3. In a treadle, the combination, with the foot-board A and the shaft 0, of the bracketshaped supports B, arm E, projecting downwardand outward from the front of the treadle, and of the connecting-rod I pivoted to this arm E, substantially as herein shown and described, and for the purpose set forth.
JONAS MICHAEL HULTQVIST.
Witnesses:
NERE A. ELFWING,
United States Consul. E. H. BRUHN.
US247356D hultqvist Expired - Lifetime US247356A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5372372A (en) * 1992-07-23 1994-12-13 Wood; Timothy Method of tying steel including supporting the worker upon a cart

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5372372A (en) * 1992-07-23 1994-12-13 Wood; Timothy Method of tying steel including supporting the worker upon a cart

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