US425894A - Territory - Google Patents

Description

(No Model.) v

J. P. MATTHEWS'& w. E. DINSMORE;

MOTOR.

Patented Apr. 15, 1890.

UNITED STATES PATENT OFFICE.

JAMES F. MATTHEWS AND VILLARD E. DINSMORE, OF OLAREMONT, (DAKOTA TERRITORY) SOUTH DAKOTA.

MOTOR.

SPECIFICATION forming part of Letters Patent No. 425,894, dated April 15, 1890.

Application filed August 26, 1889. Serial No. 321,945. (No model.)

To all whomit may concern: Y Be it known'that we, JAMES F. MATTHEWS and WILLARD E. DINSMORE, t Olaremont, in the county of Brown. and State of South Dakota, have invented certain new and useful Improvements in Motors; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to an improvement in spring-motors for sewing-machines, the object being to provide means for effectually storing energy to be spent in propelling sew- 5 ing-machinesor similar devices, for regulating the speed, and quickly stopping or starting the machinery with the exercise of but slight exertion on the part of an attendant.

With this end in view our invention consists in certain novel features of construction and combinations of parts, as will be hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a front elevation of our improved spring-motor. Fig. 2 is a side elevation, and Fig. 3 is a rear elevation with a portion broken away to'show the inside gearing.

A A represent a pair of hanger-plates held a suitable distance apart by means of spac- 0 ing-posts 1 1 1. These plates are provided at their upper ends with ears 2 2, by which they are secured to the under side of the table of the machine. The barrel 3, in which the spring 4: is contained, is loosely mounted on the Winding-arbor 5, and this barrel is provided at its rear end with peripheral teeth 6. A small ratchet-toothed wheel 7 is fitted 011 the rear end of the arbor 5, and a lever 8, fulcrumed on the rear plate A, extends up from behind the machinein position to be vibrated back and forth. Pawl 11 is pivoted to the lower end of this lever in position to engage teeth on the ratchet-toothed Wheel 7 in contact with which it is normally kept by means 5 of the spring-plate 12. Dog 9 is also pivoted in proximity to this wheel 7 and held yieldingly in contact therewith by the spring 10. The dog holds the wheel, and consequently the barrel, while a new hold is taken with the pawl 11, and also secures it against back action. By swinging the lever S in one direction the spring in the barrel is wound, and by swinging it in the opposite direction a new hold is taken 011 the ratchet-toothed wheel.

1. The teeth 6 of the barrel 3 are meshed with 5 the pinion 13, and through it motion is imparted to the large gear-wheel 14, which is integral therewith. The gear-wheel 1a meshes with pinion 15 011 the axle 16 of the gearwheel 17, and the tension of the spring drives all of these wheels.

Horizontal driving-shaft 18 is journaled in boxes 19 19 near the lower end of the front plate A. This shaft is furnished with a bevelpinion 20, the teeth of which are meshed with o 5 the teeth of the wheel 17, and thus motion is imparted to the shaft.

Pitman-wheel 21 is affixed to one end of this shaft. This wheel is provided with several holes 22 22,in which the bolt connecting the pitman-rod with thewheel is inserted. The pitman-rod communicates motion to the machine in the usual manner.

The motion of the machine is regulated by the tension-plate 24.. This plate is pivoted to the front plate A and provided with a rubber roller 25, which bears upon a similar roller 26 on the horizontal shaft 18 with greater or less pressure, accordingly as the nut 27 is tightened or loosened on the bolt 28, which extends loosely through the tension-plate.

A spring-plate 29 is secured to the front plate in such position that its free end normally bears on the pitman-wheel 21. A rod 30 extends from this break to the treadle, so that it may be removed by pressing down with the feet. By removing the feet or foot the brake is again applied and the machine is stopped.

The motor is so geared that it runs for two hours. The motor is quickly and easily wound, and by means of the regulator runs evenly and noiselessly.

It is evident that slight changes might be resorted to in the form and arrangement of 5 the several parts described without departing from the spirit and scope of our invention, and hence we do not wish to limit ourselves to the particular construction herein set forth;

but, too

Having f u'lly described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a spring-motor, the combination, with a barrel having a spring therein and gearing actuated by said spring, of a shaft having a pitman-Wheel and a yielding roller thereon, a hinged tension-plate having a yielding roller thereon, and means for regulating the tension of the plate, substantially as set forth.

2. The combination, with a toothed barrel having a spring therein and gearing driven by said barrel, of a shaft having a yielding roller thereon and a pitman-wheel having several holes therein, a brake, means for removing the latter, a hinged tension-plate having a yielding roller in its free end, and a nut for regulating the tension of the plate, substantially as set forth.

3. The combination, with an arbor, a toothed barrel having a spring therein, a ratchettoothed wheel 011 the arbor, a lever havinga pawl to engage the teeth of thewheel, a pivoted dog, and springs for forcing the pawl and dog in contact with the teeth, of a shaft having a pitman-Wheel thereon, gearing for comniunicating motion from the barrel to the shaft, a brake, and a tension device, substantially as set forth.

4. The combination, with a pair of hangerplates, spacing-posts, an arbor revolubl; su p- JAMES F. MATTHEWS. WILLARD E. DINSMORE.

Witnesses:

WM. GIBBONEY, GEO. W. KRUM.

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