US357378A - Motor - Google Patents

Description

`(No Model.) n I 2 Sheets--S'heeJ 1.

A. A. HSI-IER 81; A. J. HART.

MOTOR.

N0.j357,3'78. Patented Feb. 8, 1887.

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(No Model.) 2 Sheets-Sheet 2.

A. A. FISHER e A. J. HART.

MOTOR.'

No. 357,378. Patented Feb. 8, 1887.

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ALFRED A. FISHER AND ALBERT J. HART, OF BROOKLYN, NEVl YORK,

ASSIGNORS TO THE PACIFIC TUCKING AND MANUFACTURING COM- PANY, OF SAN FRANCISCO, CALIFORNIA.

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SPECIFICATION forming part of Letters Patent No. 357,378, dated February 8, 1857.

Application tiled May 20, 1886.

Serial No. 5202.719. (No model.)

T0 @ZZ whom it may concern:

Be it known that we, ALFRED A. Frs'HRR and ALBERT J. HART, citizens of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improven'lents in Motors, of which the following is a full, clear,

and exact descriptionreference being had tothe accompanying drawings, forming part of this specification, in whichf- Figures 1 and 2 represent plan views of a motor embodying our improvements. Fig. 3 is a side elevation of the same. Fig. 4 is an enlarged sectional view on theline xx of Fig. l.

Our invention relates -to motors especially applicable for running light machines, such as sewing-machines; and it consists in the construction and combination of devices hereinafter described and claimed.

To enable others skilled in the art to make and use our invention, we will proceed to describefthe manner in which we have carried it out.

In the said drawings, A represents a suitable bed-plate, which .is designed to be adjustably secured to the floor, and is provided with np-v rights or standards B, in the upper portions of which the projecting ends of suitable lubricatingcups, C, are mounted. The inner ends of these cups are adapted to receive and support the ends of a shaft, D, in a manner and for a purpose we will hereinafter describe. This shaft D isprovided with a pulley, E, to which power is applied tooperate the motor, and with a large wheel, F. The wheel F is divided to form two flanged sections, a b, each of which has a projecting hub, c, and a setscrew, d, by means of which the flanged sections a b may be adjusted upon the shaft to increase or diminish the speed of the machine. A secondary shaft, G, (see Fig. 4,) is alsojournaled to rotate within the inner ends of oilcups H, mounted within the upright arms e of a swinging frame, J, each of said boxes being secured by aset-screw, so as to be adjusted to take up the wear occasioned by the running of the motor. This secondary shaft G has mounted thereon a pulley, K, the side portions of which are beveled and adapted to pass between the iianged sections a i) of the wheel F, whereby said pulley K is rotated by frictional contact with the wheel F. t

Secured to the same shaft as the pulley K is a bandwheel, L, around which the band from the sewing-machine is passed, wherebyY the speed of the motor is transferred directly to the machine to operate the latter.

The oilcups Cand H are substantially alike, and are each provided with a chamber for containing thelubricatin g material, and a passage, g, through which said material escapes to lubricate the ends of theshaft, the material within the chamber being protected from dust or' other foreign matter by suitable covers in the upper portions of the cups.

As before stated, the cups H are mounted in a swinging iframe, which, it will be observed, is journaled upon a shaft, h, which passes through thelowerend of theframe and through suitable lugs, Z, projecting from the base-plate.

From this description it is manifest the frame and its several attachments may be moved forward or rearward by drawing upon a rod or other connection, m, attached to a lever or arm, n, projecting from the frame, as shown in Fig. 3.

When it is desired to reduce the speed of the machine, the sections of the wheel F are expanded,- as shown in Fig. 2, and the swinging frame J brought forward until its pulley K is engaged by the flanges a b.

If the motor be set in the position shown in this figure, and it is desired to increase the speed of the machine, the operator will disconnect the motor from the driving mechanism, release the connection my, and permit the pulley K to be disengaged from the wheel F. The screws d are now loosened and the sections of the wheel F brought closer together, after which they are secured in their new adjustment, the frame is again brought forward until the pulley K engages the wheel F, when it will be found that the sewing-machine is running at a speed greater than at first.

In the employment of this motor we find it convenient to use a brake to limit the backward movement of the frame. Therefore we pivotally secure between lugs p, projecting from the base-plate, a brake-shoe, M, which approximates the curvature of the beltwheel L, and is provided with a downwardly-extending arm, r, having a threaded perforation, through which is passed a screw, s, the inner end of which binds against the lug and ad justs the brake-shoe with relation to the adjustment of the frame J and pulleys.

From this description it will be seen the shoe may bc adjusted within a close distance to the wheel L. Therefore, when it is desired to changcthe speed of the machine or to disconnect the motor from the sewing-machine, the connection m is released, when the spring 't, attached to the end of arm a, will draw the frame and pulleys from engagement with the drivingwheel against the brake-shoe without danger of injuriously aifecting the journals or other features.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

l. In a motor, the base A, in combination with the shaft D, having the wheel F, secured thereon, and a swinging or pivotcd frame, J, having a secondary shaft', G, and a pulley, K, operated by friction contact with the wheel F, substantially as herein described.

2. In a motor, a pivoted adjustable frame, J, having a pulley, K, and band-wheel L, secured thereon, in combination with a sectional or expanding wheel, F, mounted upon adrivingshaft and engaging the pulley to drivethe band-wheel L, substantially as herein described.

3. In a motor, the base A, having the standards B, a shaft, D, mounted in said standards, and a driving-pulley, E, in combination with the wheel F, consisting of the sections a b, adjustably secured onsaid shaft, a swinging frame, J, pivotally secured to said base, and having a secondary shaft mounted in its upper end, a pulley, K, on said secondary shaft engaged and driven by thewheel F, a belt-Wheel, L, com municati n g power to the machine driven, and a means for moving said frame and connections toward or from the shaft, substantially as herein described.

4. In a motor, the combination, with a base, A, and a frame pivotally secured thereto and having the wheels K and L mounted thereon, of a brake comprising the shoe M, pivoted between lugs on the main frame, and an adjustingscrew, s, adapted to bear 'against the lugs to adjust the shoe, substantially as herein described.

5. rlhe base A, the standards B, and the shaft D, in combination with the oil-cups C, having passages gand extended ends mounted in said standards, set-screws in the standards for adjusting said cups, and removable covers for protecting the interior ot' the cups, substantially as herein described.

6. The base A, the shaft G, and the frame J, pivoted to said base, in combination with the oil-cups H, having extended ends passing through the arms of said frame and supporting said shaft, passages leading from the oilcharnber to the ends of the shaft, and setscrews for adjusting said cups, substantially as herein described.

ALFRED A. FISHER. ALBERT J. HART. Witnesses:

LoUIs P. ST. CLAIR, D. S. BARCLAY.

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