US721461A - Motor. - Google Patents

Description

"MNM-1,461.' PATBNTED FEB. 24,1903;

o. J.,PoLLocK.

MUTOR. APPLLUATIOH FILED snm. no, 1902..

2 SHEETS-SHEET 1.

l0 MODEL.

1H: Norms Firms cn.. Puorguma., WASHINGTON. D. c.

Y same.

4lA-Tinv'r OFFICE.

CALVIN JAY POLLOOK, OF KIRKSVILLE, MISSOURI.

MOTOR.

SPECIFICATION forming part of Letters Patent N 0. 721,461, dated February 24, 1903. Application led-September 20, 1902. Serial No. 124,230. (No model.)

To @ZZ whom t may concern:

Be it known thatI, CALVIN JAY POLLOCK, a citizen of the United States, residing at Kirksville, in the county of Adair and State of Missouri, have invented a new and useful Motor, of which the following is a specifica-v No. 675,497, granted to 'me June 4., 1901, and

to provide a simple and comparatively inexpensive motor designed especially for oper` ating air-compressors and provided with a rotary weight adapted to be raised on the ineffective stroke'of the aircompressor and to fall or move downward on the effective stroke, whereby the power willbeapplied most effectively and advantageously to the resistance encountered.

The invention consists in the construction and novel combination and arrangement of parts hereinafter fullydescribed, illustrated in the accompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure 1I is a .side elevation of a motor constructed in accordance with this invention. Fig. 2 is a plan view of the Fig-3 is a transverse sectional View. Like numerals ofreference designate corresponding parts in all the figures of the drawings.

1 designates a supportingframe, constructed of anysuitable material and of any desired size and configuration and composed of two sides and suitable connecting cross-pieces and provided at opposite sides with suitable bearings for the reception of'a transverse shaft 2. The shaft 2 carries at one'end a rotary element, preferably consisting of a wheel 3, provided with a weight 4, arranged at'the periphery of the wheel orkat anyother suitable point and adapted,*as' hereinafterezplained, to be raisedon the ineffective stroke of a piston 5 and an air-compressor 6 and to fall or move downward on the effective stroke of the same, whereby a great power is eectively applied to an air-compressor or other device on the working or effective stroke of the same. Although the motor is shown applied to anaircompressor, yet it will be readily understood that it is applicable to various other machines and devices. The transverse shaft 2 also forms a pivot or fulcrum for an oscillatory frame or lever 7, which although arranged 'horizontally in the drawings may operate in any other de- .sired position,and it isapproximately oblong, as clearly shown in Fig. 2, and is provided at opposite sides near oneend with a pair of upwardly-extending `hangers 8, which' are provided with suitable perforations or bearingopenings for the'shaft 2, and in practice any desired form of bearings or antifriction devices may be employed. l The oblong frame or lever may be constructed as shown in the accompanying drawings or in any other desired manner, and the sides. may consist of bars arranged inl pairs and spaced apart to receive' the hangers and also to receive bearings or journal-boxes 9 for acrank-shaft 10. The bearings or journal-boxes may be of any desired construction, and theshaft l0 is pro` vided at its ends with cranks 11,which are connected by links 12 with the base of the frame or with any other stationary support. The

links 12, which consist of rods or bars, are v adapted to oscillate longitudinally of the main or supporting frame, and they cause the frame or lever'7 to oscillate when the crank-shaft is rotated. Thelower ends of the rods or bars may be fulcrumed in `any suitable manner, and their upperends may be bentor extended inward at right angles to form pivots for connecting them to the cranks of the shaft 10.

The outer or counter shaft l10 is connected with the inner or fulcrum shaft 2 by means of snail-gear '13 and 14, provided with reversely-arranged spirally-disposed cogs or teeth, which are adapted to mesh and to vary the levers of the machine, whereby the actuating power on the ineffective stroke of the air-compressor or other device 'will be applied to the weight to be lifted, so` that on the effective stroke of the air-compressoror other device the power of the weight' will be advantageously applied. t

The outer end of the frame or lever 7 is connected with the piston 15 of a cylinder 16, designed to be operated by steam, compressed air, or any other motive power. The piston 5'ofl the air-compressor 6 is connected with the lever-frame at a point between the cylljO inder 16 and the fulcrum of the frame in order to increase the power of the machine, and the lever-frame may be of any desired length, and the air-compressor and the piston of the cylinder may be arranged at any point to secure the desired application of power. As the weight begins to ascend the cogs of the snail-gear 13, meshing with the other gear 14, are located the greatest distance from the center of the said gear 13, and the cogs or teeth of the other gear 14 are located the shortest distance from the center, so that,

great leverage is obtained for lifting the weight. paratively small amount of power will be required for swinging the lever or frame upward to raise the weight. As the weight. begins to descend the cogs or teeth of the gearwheel13 gradually approach the center,thereby increasing the leverage or driving power of the rotary elements and its weight, and the teeth of the other snail-gear 14 gradually increase their distance from the center, thereby increasing the leverage of the machine and providing a slow downward stroke of great power for operating the air-compressor. The greatest application of power is at the end ot' the downward stroke, where the greatest resistance is encountered in an air-compressor, and by means of the falling of the weight and the automatic change of leverage by the snail-gear an excessive application of power is produced at the instant where it will be found most effective and of the greatestladvantage in air-compressors. Instead of applying the poweron the downward stroke of the oscillatory frame or lever the snailgears and the other parts may be arranged for applying the maximum power on an upward stroke or at any other desired point to suit the character of the machine or device to be operated.

It will be seen that the motor is exceedingly simple and inexpensive in construction, that it possesses great strength and durability, and that the leverage resulting from the arrangement of the snail-gears and the oscillatory frame is such that only a very small amount of power will be necessary to lift the weight, and that the power of the motor is applied during the downward movement of the weight, which supplements the action of the oscillatory frame or lever. It will also be apparent that the snail-gearing automatically changes the leverage as the application of the power is changed, the power being applied to the outer end of the lever or frame to lift the weight and the weight operating as the power to operate the air-compressor or other device. Ordinary or sprocket gearwheels may be employed, if desired, for communicating motion from one shaft to the other, and I desire it to be understood that various changes in the form, proportion, size, and the minor details of construction within the scope of the appended claims may be resorted to without departing from the spirit By this arrangement only a com-v or sacrificing any of the advantages of this invention.

In order to balance the machine and to prevent the same from being jarred or vibrated and loosened at its foundations by the intermittent driving action of the rotary lweight, a reversely-rotating weight 17 may be employed. This weight, which is located at the side of the machine opposite that at which the weight 4 is arranged, is mounted on a rotary element, preferably consisting of a wheel 18, keyed or otherwise secured to a countershaft 19. The counter-shaft 19 carries a pinion or gear 20, which meshes with a pinion or gear 21 ot' the inner shaft 2, upon which the wheel 3 is mounted. Either or both ofthese rotary weights may be provided, and it will be clear that on the effective stroke of the aircompressor the weights will swing downward in opposite directions and will counterbalance each other to prevent any jar or vibration of the framework or any tendency of the same to loosen at the foundation.

1. In a machine of the class described the combination of an oscillatoryframe or lever, a rotary element provided with a weight, gearing connected with the rotary element for communicating motion to and for being operated by the same, one of the gears being 1ocated beyond the pivot of the oscillatory frame or lever and being connected with a stationary or fixed support, whereby the frame or lever will be oscillated when the gear is rotated, and means connected with the outer end of the frame or lever for actuating the same to lift the weight, substantially as described.

2. In a machine of the class described the combination of an oscillatory frame or lever, a rotary element having a weight, gearing connected with the rotary element and located at the pivot of the frame or lever and at a point beyond the same, the outer gear being connected with a fixed support,whereby the frame or lever will be oscillated when the Weight is rotated, and means for raising the weight, substantially as described.

3. In a machine of the class described the combination of an oscillatory frame or lever, a rotary element having a weight, gearing connected with the rotary element and located at the pivot of the frame and at a point beyond the same, the outer gear being connected with a 'fixed support, whereby the frame will be oscillated when it is rotated, and means connected with the outer end of the frame for rotating the weight, substantially as described.

4l. In a machine of the class described the combination of an oscillatory frame or lever, a rotary element having a weight, snail-gearing connected with the weight for rotating the same and for being actuated by the weight, one of the snail-gears being carried by the frame or lever at a point beyond the pivot thereof, and connected with a fixed support for oscillating the frame, and means connect- TIO ed with the outer end of the frame or lever for actuating the same to raise the weight, said snail-gearin g being arranged to automatically change the leverage as the machine is alternately operated by the said means and by the weight, substantially as described.

5. In a machine of the class described the combination of an oscillatory frame or lever,

inner and'outer shafts, the inner shaft forming the pivot of theframe or lever, a rotary element having a weight and mounted on the inner shaft, gearing connecting the shafts, means for connecting the outer shaft tothe fixed support, whereby the frame 0r lever is operated when the outer shaft is rotated, and means connected with the outer portion of the frame to oscillate thesame for moving the weight upward, substantiallyA as described.

6. In a machine of the class described the combination of an oscillatory frame or lever, an inner shaft forming a fulcrum for the frame or lever,'an outer crank-shaft mounted on the frame or lever and connected with a fixed support, a rotary element having a weight and mountedon the inner shaft', sn'ail-gearin g connecting the shafts, and means connected with the outer portion of the frame or lever for moving the weight upward, substantially as described. Y

7. In a machine of the class described the combination of a supporting-frame, an oscillatory frame or lever, an inner shaft forming the pivot for the oscillatory frame or lever,

an outer shaft provided at opposite sides with cranks and mounted on the frame or lever, links connecting the cranks with the supporting-frame, snail-gears mounted on the shaft and connected with each other, a rotary gear mounted on the shaft and provided with a y 'the machine, of snail-gearing arranged to reverse the leverage of the machine accordingly as the same is actuated by the weight and the motive power, substantially as described.

I 9.- In a machine of the class described the combination of an oscillatory frame or lever, a motive power, a weight, said motive power and weight being adapted to alternately actuatethe machine,and snail-gearing arranged to change the leverage of the machine acv cordingly as the same is driven by the weight and by the motive power, substantially as described. p v

10. In a machine of the class described the combination with an oscillatory frame or lever, a motive power for actuating the same in one direction, a pair of reversely-rotating weights for moving the oscillatory frame or lever in the opposite direction, and gearing for connecting the rotary weights with thev oscillatory frame or lever, substantially as described.

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

CALVIN JAY POLLOCK.

Witnesses: Y

H. F. RILEY, J. H. J ocHUM, Jr.

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