US298199A

US298199A - hawkins

Info

Publication number: US298199A
Authority: US
Publication date: 1884-05-06
Anticipated expiration: 1901-05-06

Description

(No Model.) 2 Sheets-Sheet 1.

I. L. HAWKINS. DEVICE FOR OYERGOM'ING DEAD CENTERS AND FOR CONVERTING MOTION. o; 298,199. Patented Ma 'b, 1 884.

I ATTORNEY (No Model.) 2 SheetsSheet 2.

1'. L. HAWKINS.

DEVICE FOR OVEROOMING DEAD CENTERS AND FOR CONVERTING MOTION.

No. 298,199. Patented May 6, 1884 II I INVENTOR ATTORNEY.

U ITED IRVING LEXVIS HAWKINS,

wrrrcn.

on WINDSOR, NEW YORK.

.SPBCIFICATION forming part of Letters Patent No. 298,199, dated May 6, 1884.

Application filed February 20, 1884. (No model.)

.To an whom it may concern Be it known that I, I. L. HAWKINS, a citi- -z'en of the United States, residing at Windsor,

ing power from rotary to reciprocal and reciprocal to rotary; and I do declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art, to which it appertains to make and use the same, reference being had tothe accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention has for its object to provide a cheap and simple means whereby either a continuous rotary or a reciprocating motion may be obtained and imparted to various classes of machinery, and a rotary reverse motion obtained at the same time from a single piston, the dead-center overcome, and the motion retarded or accelerated by the application of interchangeable wheels upon the same journals and piston. These obj cats I accomplish by the means shown and illustrated in the accompanying drawings, in which Figure 1 is a representation of a plan view of my invention with the fly or three-pointed cam wheel and piston removed. Fig. 2 is a v view of the piston detached, and Fig. 3 is a place upon the forward journal.

view of the three pointed camwheel detached.

Referring by letter to the drawings, A indicates a frame, to which are secured the axles a, on which the wheels are journaled.

B indicates the wheel, which I preferably This wheel has one of its faces provided with a waved or convoluted cam-groove, the center of which represents in outline a five-pointed star having its radial arms slightly curved outwardly and lateral to a pointed terminal forming the inner walls of the groove in. which travel the two forward pins of the piston. The reverse wheel 0, which I place upon the rear journal, has the outer walls of the groove oblique and semicircular alternately, as shown, with the.

arms of the star conforming in outline there power.

to, so as to have the walls of both parallel with relation to each other for the free and easy passage of the piston between them. D indicates the piston, which is provided with two elongated vertical slots, 12 b, for the passage of the wheel-j ournals, respectively. This piston is provided with vertical pins 0 0 and c c, which project from the opposite sides thereof, to, respectively engage the grooves of the wheels, the two forward pins being on the same horizontal plane, while the two rear pins are arranged, respectively, on a line, or nearly so, with the longitudinal walls of the rear elongated slot. By this arrangement of the pins upon the piston, when the wheels are placed upon the journals, as before described, and the said pins brought in engagement with the grooves of the wheels from one side and power applied to the piston, both wheels will be driven in the same direction; but by removing the piston and reversing it upon the wheels, so as to change the rear pins with relation to the grooves of the rear wheels, the forward wheel will be driven in the same rotary direction, while the rear one will take a may have a three-pointed cam-groove, andmay be placed upon the journal of one of the other wheels; and, if desired, a fourth wheel may be used on the journal of the other wheel.

I do not wish to be understood, however, as confining myself to any number of wheels or points in their grooves, as a greater or less number may be employed, according to the nature of the machine to be operated and the movement required.

This invention will be found particularly valuable in mowing-machines for driving the cutting apparatus, as a continuous reciprocating motion may be obtained with but little It may also be successfully applied to locomotive-engines for operating their drivewheels, and to various other machines with a beneficial result.

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

1. The combination, with one or more camwheels, of a piston having pins arranged upon opposite sides for engaging the cams, and In testimony whereof I affix my signature in IO. elongated slots for the passage of the journals, presence of two witnesses. substantially as and for the purposes specified.

2. The combination; with two or more cant IRVING LEIVIS HAWKINS. wheels having laterally-projecting journals, of a piston having pins for engaging the cams, XVitnesses: so arranged as to overcome the dead-oenter J. HENRY ROBERTS, and drive two or more wheels in opposite di- J. S. CHASE.

rections, substantially as specified.