US254225A - Mechanism foe - Google Patents

Mechanism foe Download PDF

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US254225A
US254225A US254225DA US254225A US 254225 A US254225 A US 254225A US 254225D A US254225D A US 254225DA US 254225 A US254225 A US 254225A
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wheel
friction
shaft
france
sewing
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    • 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
    • F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
    • F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
    • F16H15/04—Gearings providing a continuous range of gear ratios
    • F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
    • F16H15/08—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B is a disc with a flat or approximately flat friction surface
    • F16H15/10—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B is a disc with a flat or approximately flat friction surface in which the axes of the two members cross or intersect
    • F16H15/12—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B is a disc with a flat or approximately flat friction surface in which the axes of the two members cross or intersect in which one or each member is duplicated, e.g. for obtaining better transmission, for lessening the reaction forces on the bearings

Definitions

  • My invention relates to improvements in devices in which transmission of power from a main shaft to counter-shafts is effected by means of friction-wheels; and the objects of my improvements are, first, to provide a mtary disk transferring the power to the friction-wheel; and, second, to afford facilities for the radial motion of the friction-wheel on the face of the rotary disk, in order to'vary the speed of the machine.
  • the bevel-wheel t at the main shaft T drives the bevel-wheels a, the shafts of which rest-in the cross-bearings t.
  • a disk, A being fixed on the other end of the shaft, rotates with a and transfers the motion to the friction-wheel B, arranged at right angles to the disks A.
  • the wheel B is mounted on the shaft 1), provided with a square part, b, whereon the wheel B can be displaced radially to the face of the disk A.
  • the hole in the nave of B beiug square, too, and of the same size as the square part of b, the latter is turned in the 40 same direction as the wheel B, and thereby drives the pulley 1?, connected with the pulley P of the sewing-machine by the beltp.
  • the mechanism composed of the fork c, the treadle G, and the treadle-shaft G.
  • the fork c is fixed to the shaft 0, where alsothe treadle O is attached. So moving one side of the latter up or down, also the bifurcated'end of the fork c" is displaced horizontally, and because the pin 1; of the loose collar b, attached to the friction-wheel B, rests between the fork c, the wheel B is removed in horizontal direction nearer to or farther from the circumference of A. In consequence a corresponding speed is communicated to the wheel B and transferred to the pulley P by the shaft b.

Description

(No Model.)
MECHANISM FOR APPLY-INGVPOWER To SEWING MACHINES. No. 254,225. Patented Feb. 28,1882
no.1 V FIG-2 FIG. 5
N. PETER5, PhnloLRhogmpher, Washington. 0.1;
UNITED STATES PATENT OFFIcE.
IRENEE LECOEUR, OF DARNETAL, FRANCE.
MECHANISM FOR APPLYING POWER TO SEWING-MACHINES.
' SPECIFICATION forming part of Letters Patent No. 254,225, dated February 28, 1882. Application filed July 9, 1881. (No model.) Patented in France March 15, 1881.
To all whom it may concern.-
Be it known that I, IRENEE LEGOEUR, a citizen'of the Republic of France, residing at Darnetal, in the Department of Seine-Inferieure and Republic of France, have invented a new and useful Mechanism for Applying Power to Sewing-Machines, (for which I have obtaineda patent in France, bearing date March 15, A. D. 1881, No. 141,696,) of which the following is a specification.
My invention relates to improvements in devices in which transmission of power from a main shaft to counter-shafts is effected by means of friction-wheels; and the objects of my improvements are, first, to provide a mtary disk transferring the power to the friction-wheel; and, second, to afford facilities for the radial motion of the friction-wheel on the face of the rotary disk, in order to'vary the speed of the machine. I attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a side elevation of the mechanism applied to two sewing-machines, one opposite the other; Fig. 2, a front elevation, and Fig. 3 a plan thereof.
Similar letters refer to similar parts throu ghout the several views.
The bevel-wheel t at the main shaft T drives the bevel-wheels a, the shafts of which rest-in the cross-bearings t. A disk, A, being fixed on the other end of the shaft, rotates with a and transfers the motion to the friction-wheel B, arranged at right angles to the disks A. The wheel B is mounted on the shaft 1), provided with a square part, b, whereon the wheel B can be displaced radially to the face of the disk A. The hole in the nave of B beiug square, too, and of the same size as the square part of b, the latter is turned in the 40 same direction as the wheel B, and thereby drives the pulley 1?, connected with the pulley P of the sewing-machine by the beltp. To displace the friction-wheel on the shat'tb serves the mechanism, composed of the fork c, the treadle G, and the treadle-shaft G. The fork cis fixed to the shaft 0, where alsothe treadle O is attached. So moving one side of the latter up or down, also the bifurcated'end of the fork c" is displaced horizontally, and because the pin 1; of the loose collar b, attached to the friction-wheel B, rests between the fork c, the wheel B is removed in horizontal direction nearer to or farther from the circumference of A. In consequence a corresponding speed is communicated to the wheel B and transferred to the pulley P by the shaft b.
Having thus fully described my invention,
I. LECOEUR.
Witnesses:
GUSTAVE Ln CAUDTZ,
. De Ro-n ey. EUGENE GAGNEURE,
Dametal.
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