US432586A

US432586A - Mechanical movement

Info

Publication number: US432586A
Authority: US
Publication date: 1890-07-22
Anticipated expiration: 1907-07-22

Description

(No Model.) 2 Sheets-Sheet 1. W. G. WESTAWAY & L. W. BEARD.

MECHANICAL MOVEMENT.

No. 432,586. Patented July 22, 1890.

(No Model.) 2 Sheets-Sheet 2.

W. 0. WESTAWAY & L.-W. BEARD. MECHANICAL MOVEMENT.

No. 432,586. Patented July 22, 1890.

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\VALTER C. \VES"AWAY AND LltlVIS TV. BEARD, OF DECORAH, I()\V A.

eeannzoni. MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 432,586, dated July 22, 1890.

Application filed February 21, 1890. Serial No. 341,336. (No model.)

To all whom it may concern/.-

Be itknown that We, WALTER C. WEsTA WAY and LEWIS XV. BEARD, of Decorah, in the county of Vinnesheilc and State of Iowa, have invented certain new and useful Iniprovements in Mechanical Movements; and we do hereby declare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled. in the art to which it appcrtains to make and use the same.

Our invention relates to an improvement in mechanical movements applicable to various machines when the end to be attained is the conversion of rotary motion to reciprocating or reciprocating motion to rotary, and in the practical embodiment of this invention it is illustrated in connection with a Windmill.

The primary object is to concentrate the power derived from two or more revolutions of a suitable rotary device into a single thrust of a reciprocating rod; and to this end our invention consists in a rotary shaft having a spiral cam thereon and connected gearing for communicating motion from the shaft to other parts of the mechanism, in combination with a vibrating lever, a reciprocating rod, a bearing Wheel or roller connected with the lever for following the spiral cam, whereby the lever is raised, and means for throwing this bearing wheel or roller out of contact with the spiral cam to lower the rod and to resume a proper position to again travel up the incline afforded by the spiral cam, and thereby raise the rod.

Our invention further consists in certain novel features of construction and combina- A represents a. rotary shaft journalcd in bearings 1 1 in a suitable framework, of

which the mechanism constituting the present invention is a part.

For the purpose of illustration and apracticalembodiment of thei-nvention it is shown in connection with a windmill, the frame being the frame of this windmill, having the wheel secured on one end of the shaft and the vane pivoted at points 2 2 on the frame. Keyed or otherwise secured on the rotary drive-shaft- A is a spiral cam-wheel .3, which is mainlyinstrumental in effecting the conversion of motion from rotary, as described by itself and the shaft upon which it is mounted, to reciprocating. A long arm orlever i is pivoted at one end 5 to the framework, and thence passing through a slot formed for it in the upper portion of the frame it extends forward in the same vertical plane with the shaft, and at its opposite end is pivotally secured to the upper end of the rod 6, which operates the pump. A depending hanger 7 is pivoted to the swinging lever 4C, and an L-shaped arm 8, also pivotally supported on lever at, terminates at one end in a horizontal shaft 9, passes through openings formed for it in the lower end of the hanger 7, and forms an axle for the bearingwheel 10. The latter travels on the spiral earn 3, and byits combined contact therewith and the rotation of the shaft A the lever 4 is raised, carrying with it the rod 6. Thus one motion is given to the rod. The opposite motion is produced by othermechanism now to be described. A gear-wheel 12 is revolubly supported on the bearing 13, and the teeth of this wheel are meshed with the teeth of pinion 14, by which it is driven, and the latfor maybe simplykeyed on the horizon talshaft A,or it may be formed integral with the hub of the spiral cam. This gear-wheel is provided on an inner face with a cam offset 15, which the lower end of the L-shaped arm 8 engages. This offset is eccentrically arranged around the center and is in two or more planes, and the wheel is so geared relative to the other parts, especially the spiral cam and the L-shaped arm 8, that it makes one revolution to three of the spiral cam, in order to remove the bearing-wheel from the spiral cam, and thus drop the lever 4, with. the attached rod, preparatory to traveling again on the spiral. In the drawings attached the spiral cam is driven two full revolutions to make the upstroke of the rod complete, While it is carried 'back to the starting-point with one revolution of the shaft A, and in this case the wheel 12 is three times the diameter of the pinion 14. In this way the rod is continnally raised and lowered, thelever 4,which carries the rod, being raised by the spiral cam and carried back by a positive motion transmitted from the cam offset 15 by means of the L-shaped arm 8. The number of revolutions of the spiral cam to make an upward stroke of the rod may be varied to suit the work by making as many steps or turns on the spiral as there are revolutions needed and timing the pinion and gear-wheel carrying the cam-offset to match. also the lower end of the L-shaped arm are split or slotted so as to straddle the shaft A for the purpose of forming a guide for them in their movements.

It is evident that slight changes might be resorted to in the form and arrangement of 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 exact construction herein set forth; but,

Having fully described our invention,what

we claim as new, and desire to secure by Letters Patent, is- 1. The combination, with a rotary spiral cam and a rod, of a rotary bearing-wheel adapted to travel on the cam, and cam for automatically throwing the rotary bearing-wheel out of contact with the spiral cam, substantially as set forth.

2. The combination, with a rotary spiral cam and a rod, of a rotary bearing-wheel connected with the rod and having contact with the spiral cam, a gear-wheel havinga cam-01fset on its side, said wheel being driven by a wheel adjacent to the spiral cam, and an L- shaped arm, one end of which forms abearing for the rotary bearing-wheel and the other end having engagement with the cam-offset,

The rod andpending from the arm and a rod connected with this arm and adapted to be reciprocated by the swinging arm substantially as set forth.

4. The combination, with a rotary spiral cam and a swinging arm, of a depending hanger pivoted to this lever, an arm pivoted to .1 the swinging arm and passing loosely through the hanger, a wheel or roller within the h an ger revolubly supported on the arm and adapted to bear on the spiral cam, and a rod pivotally .connected with the outer end of the lever,

substantially as set forth.

5. The combination, with a frame,a rotary shaft, and spiral cam secured on the shaft, of a swinging arm having a rod pivotally connected therewith and a depending hanger pivoted to the lever and having a bearing wheel or roller adapted to travel on the spiral cam, whereby the lever is swung and the rod is moved endwise, substantially as set forth.

6. The combination, with a frame, a rotary shaft and a spiral cam and pinion thereon, of a swinging arm having a rod pivoted to its outer end, a bearing wheel or roller depending from, the lever in position to travelon the cam, a gear-wheel meshed with the pinion,

I said wheel having a cam-ofiset on one face,

and an L-shaped lever pivoted to the swinging lever, one end forming an axis for the bearing wheel or roller and the other having engagement with the cam-offset, whereby the bearing wheel or roller is automatically shifted, substantially as set forth.

In testimony whereof we have signed this specification in the presence of two subscribing witnesses.

WVALTER O. WESTAWVAY. LEWIS W. BEARD.

Witnesses:

E. CHAMBERLIN, H. BEARD.