US268528A - Device for converting motion - Google Patents

Description

(No'Mod'eL) RI W DEVICE FOR GONVERTING MOTION.

Patented Dec. :5, 1882.

UNITED STATES PATENT Glance.

. ROBERT w. PAIN, on NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTS,

TO THE NATIONAL AUTOMATIC PIANO AND ORGAN MANUFACTURING COMPANY, OF NEW YORK.

I I JEVICE FOR CONVERTING MOTION.

SPECIFICATION forming part of Letters Patent No. 268,528, dated Decemberti, 1882, Application filed April 15, 1882. (No model.)

To all whom it may concern:

Be it known that I, RoBEa'r W. PAIN, a citizen of the United States, and a resident of New York, in the county and State of New York, have invented a new and useful Improvement in Devices for Oonvertin g Reciprocating into Rotary Motion, of which the following is a specification.

This invention relates to that class of clutch devices that are usually operated by pedals,

and are adapted to drive sewing-machines, me chanical musical instruments, and other light machines. I y l The invention consists of two smooth-faced wheels rigidly fixed on a shaft, and the combination, with each wheel, ofan arm swinging on said shaft, of a pawl pivoted to the outer end of said arm and operating upward against said wheel, and of a fork adapted to rock up and down on said shaft, and to transmit the move- I ments of a pedal to the clutch device. Two of these combinations of wheel, arm, pawl, and fork are fixed on the shaft at such relative angles that the regular reciprocating motions of the pedals to which they are respectively connected will cause said shaft to continuously revolve in one direction. The manner of the application of said pawls to the wheels being, however, unlike that common to other devices 0 of this character, inasmuch as each pawl becomes engaged against its respective wheel by the upward instead of the downward movement of the corresponding pedal.

Figure 1 is a vertical sectionalelevation on 5 line a' m, Fig. 2, showing my improved device applied to a machine. Fig. 2 is a fro'ntelevation showing the same. Fig. 3 is an enlarged plan of one of the elements of the clutch device. Fig. 4 is an enlarged partly sectional 40 side elevation of the same.

Similar letters of reference indicate corresponding parts.

.In the drawings, A represents the case or frame of a mechanical musical instrument. 5 'B is the horizontal driving-shaft, journaled in the sides of the case A.

G 0 represent the clutch elements, each of which consists of a wheel, a, rigidly fixed on the driving-shaft B, of a fork, b, loosely fixed on said shaft B, and inclosing between its fin- 5o necting-rod, l, is held by a rod, h, the lower end of said connecting-rod being jointed to a pedal, D, that is rigidly secured on a shaft, E. The outer ends of the pawlsfbeing below the axes of the wheels a, and resting on the crossbars d, while their inner ends are in contact with the peripheries of said wheels, it follows that an upward motion of apedal,D,will force upward the outer end of its connected fork Z1,

with the effect of forcing the nose or inner end of the connected pawl fin contact with the wheel-periphery, which periphery is preferably covered with a band, m, of rubber, to prevent slipping and by the continued upward move ment of the pedal the said wheel is carried around in correspondence with the ascending movement of the said fork b and pawlf, while a falling motion of the pedal will relieve the bite of the pawlupon the wheel by removing the upward pressure of the cross-bard from the outer end of said pawl,and the fork b,arm c, and pawlf will then fall with their respective pedal, leaving their wheel a and the shaft 13 free to be revolved by the upward move ment of the other pedal and its connected clutch elements. It will be "seen, then, that when the operator forces one pedal down the other pedal is thereby forced upward, and that the clutch element of the falling pedal becomes inoperative, while that of the rising pedal be- 0 comes operative. Hence a constant reciprocating movement of said pedals will cause the driving-shaft B to continuously revolve in one direction.

1 represents a roller provided with a pulley 5 or sleeve, E, that may be revolved in the same direction as the shaft B by a straight beltconnectio'n, G, with a pulley,F, on the said lugs,'g, between which the upper end of a con- 60- driving-shaft B; and herein the use of this clutch device offers an obvious advantage over those'of the usual construction, which necessitates the use of a cross-belt to make the driven shaft rotate in the same direction as the driving-shaft.

I am aware that there are various clutch devices for converting reciprocating into rotary motion; but I am not aware that any of them operate or are constructed in the manner herein set forth.

I do not broadly claim two pawls operating alternately and by a single pedal, nor two pawls operating alternately upon opposite sides of the same wheel; nor do I claim broadly a single pawl operating upon the periphery of a wheel, nor two V-poi'nted pawls operating upon opposite faces of a V-grooved-wheel, nor two pawls operating alternately on separate wheels and by two pedals; but,

Having thus described my invention, I claim as new and desire to secure byLetters Patent 1. An improved device for converting reciprocating into rotary motion, composed of two like clutch elements, G 0, each attached by a connecting-rod to a pedal that is rigidly fixed on a shaft, and consisting of a wheel, a, rigidly fixed on a driving-shaft, a fork, b, and arm a, loosely fixed on said shaft, the former provided with cross-bar d, and a pawl, f, pivoted on the free end of said arm 0, said elements being made operative by the ascending motions of their respective pedals, as set forth.

2. In a device for converting reciprocating into rotary motion, and operated by the ascending movements of the connected pedals, the combination, with the fixed wheels at a, of the swinging arms 0 0, and attached pawlsff, said wheels being made to revolve by the ascending movements of said pawls, as set forth.

3. As a means for converting reciprocating into rotary motion, the combination, with a pair of wheels rigidly fixed on a shaft, of two pawls acting alternately and made to operate on the wheel-faces by means of the ascending motion of connected pedals, substantially as herein shown and described.

In testimonythat Iclaim the foregoing as my invention I have signed my name, in presence of two witnesses, this 14th day of April, 1882.

ROBERT W. PAIN.

Witnesses:

JAcoB J. STORER, M. T. WHELPLEY.

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