US319527A - X m motor - Google Patents

Description

(No Model.)

J. SULLIVAN.

MOTOR.

No. 319,527. PatentedJune9,1885.

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. SPECIFICATION forming part of Letters Patent No. 3l9,527, dated .Tune`9, 1885.

Application filed April 1G, 1885. (No model.)

To all' whom it may concern:

Beit known thatI, JERRY SULLrvAN, a citif zen of the United States, residing at Dubois, y in the county of Clearfield and State of Penn.

Sylvania, have invented a new and useful Improvement in Motors, of which the following is a specification, reference being had to the accompanying drawings.

This invention relatesto motors designed toy 'be used as a moving power for sewing-machines, bracket and other saws, griudstones, fly-fans, lathes, and other light machinery;

and it has for its object to provide simple, in-

expensive, durable, and efficient means for this purpose, whereby the attachment and application of the motor to the various uses mentioned can be effected with ease and facility,

a front elevation of a sewing-machine, showing my improved motor applied thereto. Fig. 2 is a side elevation of thesame, part of the casing being broken away to show the interior mechanism which runs the'machine. Fig. 3 is a horizontal section taken through the drivewheel of the machine, part of the casing at the top being removed to show theinterior construction.

Like letters are used to indicate corresponding parts in the several gures.

Referring to the drawings, A designates the driving-shaft of a sewing-machine, having the drive-wheel B mounted thereon. This shaft A is extended outward on one side and passes through a casing or frame, C, which incloses the mechanism from which the motive power is derived. Supporting brackets or arms D D are employed to connect or secure the casing or frame C to the side bars or frame-work of the sewing-machine.

On the extension E of the shaft A,within the casing C, is mounted a cog-wheel,F,with which engages a pawl or detent, G, placed on a shaft, H, journalcd in the casing parallel with the shaft A. A handle or lever, I, is connected with the shaft I-I, and extends upward through a slot, u, in the top of the casing C, and is of sufficient length so as to be within convenient reach of the operator while at work. It will be seen that when said handle or lever is worked the shaft H is turned or oscillated to cause the pawl or detent to loe thrown into engagement with the cog-wheel F, this action causing the machine to be stopped instantaneously. Since the pawl or detent is continuously in engagement with the teeth of cogwheel F and slips over the same, the contact of the two parts, when constructed of metal, will cause incessant rattling or clicking and to avoid this disagreeable noise I propose to construct this detent or pawl of gatta-percha, hard vulcanized rubber, rawhide, or other suitable material, which will successfully answer the purpose and obviate the objection noted. A rack-plate, K, is tted to the top of the casing, and is adapted to hold the ylever or handle I when the latter is thrown forward to stop the machine. The cog-wheel F is connected by a suitable train of gearing with the power-spring J, mounted on the winding-arbor L, which is extended out from the casing, as at b. I have not thought it necessary to give an extended description or illustration of the gearing and the connections with the spring, as such is of the usual construction employed in all clock mechanism. On the eX- tension b of the winding-arbor L is attached a hand-wheel, M, which may be provided with a crank or operating handle, c, for turning the arbor to wind the spring in the manner well known.

M designates a brake-lever pivoted at one end to one of the side bars of the sewing-machine frame, and having near its center a cushion or pad, N, which is arranged to be forced into engagement with the hand-wheel M, to regulate the movements of the machine. The other end of the brake-lever is shaped to provide a handle, O, and is adapted to engage with any one of a series of notches or serrations of a rack-bar, d, attached to the side of the frame C. A vertical rod, It, and a'horizontal rod, S, serve to connect the lever M with the treadle 'I, so that the operation of the latter will cause the brake to be applied. In this manner I provide means for applying IOO the brake either by hand or foot, the Contact of the brake pad or cushion N with the Wheel M causing the speed of thelatter to be decreased correspondingly with the degree of 5 pressure applied to the brake-pad. The rackbar d serves to hold the brake-lever in its various adjustments, retaining the speed of the machine at a uniform rate.

I have shown the brake-lever arranged above the Wheel M and operating downward to come in contact with the same; but it will be readily seen that the said brake-lever may be located beneath the Wheel and work in an upward line for the same purpose.

The operation of my invention Will be readily understood from the foregoing description, taken in connection With the annexed -draW- ings. The mainspring which furnishes the motive power is wound by turningthe handwheelM. On being Wound the spring begins to act upon the train of gearingin the manner Well known in all clock-Works, causing the turning of the-intermediate gearing, the cogwheel F, by its connection With the latter, being 'revolved to cause the revolution of the shaft A, on which the drive-Wheel B is mounted. This drive-wheel is connected by a band or belt with the sewing-machine to run the latter, and thus all labor on the part of the .operator will be dispensed With.

While in use the operator should retain her feet on the treadle, so that by depressing the latter the brake can be applied to decrease the speed of'the machine; or,in case the treadle is dispensed With, she can reach down to one side, grasp the handle end of the lever M', and apply the brake with equal effect.

The handle or lever I is used to stop the machine instantaneously should any accidentl 4o occur or when it is desired to cease Work.

My improved motor is simple in construction, is inexpensive to manufacture, and efiicient in use. l have shown the motor applied to sewing-machines; but I do not wishto be limited to this particular use, as the same may be applied to Work any light machinery, such as I have enumerated above.

Having described my invention, I claim- 1. In a motor, the driving-shaft With the drive-wheel, in combination With the casing or frame C, through which the driving-shaft is extended, the cog-Wheel F, the shaft H, pawl or detent G, the train of gearing for operating the cog-Wheel, and the handle or lever connecting with the shaft H, for forcing the detent into engagement with the cog-Wheel, for the purpose set forth.

2. In a motor, the driving-shaft and the drive-Wheel, in combination with the casing C, through which the driving-shaft is extend- 6o ed, the cog-Wheel F, the power-spring, and intermediate gearing for. operating thecog- Wheel, the Winding-arbor on which lthe spring is mounted, the hand-wheel mounted onY an extension of the arbor, the brakefleverpiv-k oted at one end to the machine, a pad or cushion iitted tothe brake-lever, the other end of the latter being shapedto provide a handle, and adapted to vbe forced into engagement with any one of a series of notches or Y serrations or a rack-bar, for the purpose set forth.

In testimony that VI claim the foregoing as my own I have hereto affixed my signature in presence of two Witnesses.

` .JERRY SULLIVAN. .i

Witnesses:

WM. N. MOORE, E. G. SIeGnRs.

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