US811426A

US811426A - Adjustable crank-disk.

Info

Publication number: US811426A
Application number: US26045705A
Authority: US
Inventors: Ira G Mitchell
Original assignee: ARTHUR C MOULTON; FRANK E SHERIDEN; FRANK H JO HANTGEN; GEORGE E AICHER; LEE PETERSON; REUBEN S BALL
Current assignee: ARTHUR C MOULTON; FRANK E SHERIDEN; FRANK H JO HANTGEN; GEORGE E AICHER; LEE PETERSON; REUBEN S BALL
Priority date: 1905-05-15
Filing date: 1905-05-15
Publication date: 1906-01-30
Anticipated expiration: 1923-01-30

Description

No. 811,426. BATENTED JAN. 30, 1906.

I I. G. MITCHELL. ADJUSTABLE GRANK DISK. A' rrrrrrrrrrrrrrrrrrrrrrrr a.

UNITED STATES PATENT OFFICE.

IRA G. MITCHELL, OF MEEKER, COLORADO, ASSIGNOR OF ONE-TWELFTh TO ARTHUR C. MOULTON, ONE-TWELFTH TO FRANK E. SHERIDEN, ONE- TWELFTH TO REUBEN 8. BALL, ONE-TWELFTH TO LEEPETERSON, ONE- TWELFTH TO FRANK H. J O HANTG EN, AND ONE-TWELFTH TO GEORGE E. AIGHER, OEMEEKER, COLORADO.

ADJUSTABLE CRANK- -DISK.

Specification of Letters Patent.

Application filed May 16, 1905. Serial No. 260.457.

. Patented Jan.- 30, 1906.

Im rovementsin Adjustable Crank-Disks, of

which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to machine elements, and more particularly to an adjustable crank disk or wheel for use on engines or like machinery where crank motion, piston, pitman, or connecting-rods are used to transmit motion of any kind, Whether rotary, slidin oscillating, or g ating, one of the objects eing to provide a evice of the character described which shall be useful in varying, lengthening, shortening, strengthening, or perfectly adjusting the length of the stroke with a single disk or wheel by turning my eccentric-disk with crank-pin to or from the center.

Other objects and advantages of my invention, as well as the structural features b means of which these objects are attaine will be made clear by an examination of the specification, taken in connection with the accompanying drawings, in which the same reference-numerals indicate corresponding por tions throughout, and in which Figure 1 is a side elevation of a disk, showing my invention in operative position. Fig. 2 is a vertical section, and Fig. 3 is a perspective view of the eccentric-disk.

1 designates a disk or wheel which may be made of any desired size or material and preferably formed solid, as shown in the drawings. This disk is provided with a central opening 2, whereby it may be mounted on a driving-shaft, and a groove or kerf 3 longitu- 1dinal of the opening'2 for the reception of a 4 designates an adjustable eccentric-disk provided with a flange or lip 5 and a kerf or groove '6 in the center of its periphery. Set 1n an opening 7 in said eccentric-disk 4 is a crank-pin 8, en aged by a set-screw 9, whereby it is remova ly secured in operative position and held against rotation. This crankpin is provided with flanges or rings 10, by

means of which a crank or piston may be held in o erative position thereon.

The disk 4 is adapted to rotate in a circular opening 11 through the disk or wheel 1 eccentric of its center, the flange 5 restin against a shoulder 12. A set-screw 13 0' well-known construction and rovided with a j am-nut 14 is screwed into a t eaded opening 15 in the eriphery of the disk 1, so that asses into and rests in the its lower en groove 6,'thus olding the disk 4 in rotatable position in the circular opening 1].. 1s also provided with notches or holes 1 6 in one found necessary.

In operation a crank-shaft is operably mounted on the crank-pin 10, which may The disk of its sides for the reception of the jaws of a either rotate in the eccentric-disk 4 or be held against rotation by the set-screw 9. The eccentric-disk 4 may rotate in the opening 11 or may be held against rotation by tightening the set-screw 13 and the j am-nut 15. In the largest-sized disks it may be found necessary to employ more than one set-screw and jam-nut inorder to hold the eccentric-disk against rotation. The flange 5 acts as a guard when bearin against the shoulder 12 and tends to aid in olding the eccentric 4 securely in place in the openi'n 11. By means of the adjustable features 0 the mechanism hereinbefore described rotary, sliding, oscillating, or gyrating motion may be transmitted to engines or other machinery by means .ofpistons, pitmen, or other connecting-rods disk mounted in said recessed portion, said eccentric-disk being provided with an annular flange adapted to engage the recess of said annular body.

' 5 2. A circular body having a recessed portion provided with an offset, in combination with an eccentric-disk rotatably mounted in said recessed portion, said eccentric-disk being provided with an annular flange adapted 10 to engage the offset in said annular body.

3. A cylindrical body having a recessed portion, in combination with an eccentricdisk rotatably monnted insaid recessed ,por: 'tion, said eccentric disk'being provided with a Iperipheral groove and an annular rib, said 15 ri belng adapted to engage the recess-of said cylindrical body, and'means carried by Said cylindrical body adapted to enter said groove.

In testimony whereof I hereunto affix my signature in presence of two witnesses.

. IRA G. MITCHELL. Witnesses:

R. S. BALL, A. O: M-oULToN.