US655535A - Cam-wheel. - Google Patents

Description

No. 655,535. Patented. Aug. 7, 1900. F. E. a F. 0. WELLS.

G A M W H E E L A lication filed mi; 1, 1900.

(No Model.)

FREDERIC E. WELLS AND FRANK O. /VELLS, OF GREENFIELD, MASSACHU- NITED STATES PATENT OFFICE.

SETTS, ASSIGNORS TO THE AUTOMATIC MACHINE COMPANY, OF SAME PLACE.

CAM -WH EEL.

SPECIFICATIOIT forming part of Letters Patent No. 655,535, dated August 7, 1900.

Application filed May 1, 1900- Serial No. 15,116. (No model.)

To all whom it may concern-r Y Be it known that we, FREDERIC E. WELLS and FRANK O. WELLs, citizens of the United States of America, residing at Greenfield, in the county of Franklin and State of Massachusetts, have invented new and useful Improvements in Cam-Wheels, of which the following is a specification.

This invention relates to cam wheels, and has particular reference to the construction of a cam-wheel which is adapted to receive cams thereon of different forms and which may be removably secured to either side or to the periphery of said cam-wheel and which may be readily moved from place to place on the wheel without removing them therefrom; and the invention consists in the construction set forth in the following specification and pointed out clearly in the claims forming part thereof.

In the drawings forming part of this specification, Figure l is an edge elevation of a cam-wheel constructed according to this invention. Figs. 2 and 3 are respectively views of opposite sides of said wheels with the cams removed. Fig. e is a sectional view of a part of the cam-wheel. Figs. 5 and 6 are perspective views of cams adapted to opposite sides of the wheel; and Fig. 7 is a perspective View of a cam adapted to be secured to the edge or periphery of the cam-wheel.

In screw-machines and analogous automatic machinery cam-wheels bearing a number of cams are in common use; but no means have heretofore been devised for securing cams to such wheels on either side at will or on the periphery of the cam, whereby they may be shifted to any point on the wheel relative to one another without being removed therefrom.

In carrying out this invention the camwheel 1 is cast with a rim of sufficient width and depth to permit of the turning therein of the grooves 2 2 and 3, the grooves 2 2 being formed in opposite sides of the rim and the groove 3 in theface of the wheel. These grooves 2 and 3 have undercut edges, as shown in Fig. 4, and the rim may be cast solid and the grooves be turned out on alathe,or the grooves may be formed therein when the wheel is cast, in which case they would necessarily be cast of rectangular form in cross-section and their vertical sides then undercut in a lathe. Cams at of any desired shape (three of which are shown in Figs. 5, 6, and 7) may be secured to the wheel by means of a shoe 5,which may be secured to arib 6 on the under side of the cam, which shoe is preferably located about midway between the ends of said rib and is flanged on either side by lugs '7 of a width equal to the narrowest outer part of the said grooves. These lugs lie in the grooves when the cam is placed in position on the Wheel and are, together with said shoe, arranged on said rib 6 on a curve whose radius is the same as that of the grooves. Said lugs are adapted to hold the cams against lateral strains and to take such strains off of the shoe 5. Said shoes 5 are secured in proper position between said lugs 7 by a screw 8,

which passes througha hole 9 in the rib. By

this means the turning up of said screw will cause the shoe to be drawn forcibly against the undercut sides of the groove, thereby securing the cam against movement in the latter. In Figs. 5 and 6 said shoes and their screws are shown in separated relations relative to the ribs 6, and in Fig. 7 the shoe is shown in dotted lines inthe position it properly would occupy, the cam in said last-named figure being shown bottom side up.

To provide means for entering the shoes 5 in the grooves 2 and 3, a rectangular opening 10 is made in some part of the groove which is equal in width and length to the shoes 5, through which the latter may be dropped into said grooves.

To secure a cam in any desired position on the wheel, a shoe is entered into one of the grooves through the opening 10 and is moved around to the position the cam is to occupy on the wheel; The screw 8 is then passed through the rib of the cam and is entered in the screw-hole in the shoe and when the cam is properly located tightened up, whereby the cam is rigidly secured.

Having thus described our invention, What we claim, and desire to secure by Letters Patent of the United States, is-

1. A cam-wheel consisting of a body having a solid rim, an undercut groove in said rim on the face thereof, and an undercut groove in each side of said rim; one or more shoes adapted to slide in said grooves, cams secured to said shoes, there being an opening in each of said grooves Whose Width is equal to the greatest width of said shoes, whereby the latter maybe entered in said grooves, and means for securing said shoes in said grooves, substantially as described.

2. A cam-Wheel consisting of a body having a solid rim and an undercut groove in said rim, a cam for said wheel, said earn having projections adapted to enter said groove, a shoe located between said projections and FREDERIG E. WELLS, FRANK O. WELLS.

XVit-nesses:

GHAUNoEY BRYANT, RUFUS A. LILLY.

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