US791225A

US791225A - Shaping-machine.

Info

Publication number: US791225A
Application number: US20294404A
Authority: US
Inventors: James C Steen
Original assignee: Cincinnati Shaper Co
Current assignee: Cincinnati Shaper Co
Priority date: 1904-04-13
Filing date: 1904-04-13
Publication date: 1905-05-30
Anticipated expiration: 1922-05-30

Description

s No. 791,225.

UNITED STATES Patented. May 30, 1905.

PATENT OFFICE.

JAMES C. STEEN, OF CINCINNATI, OHIO, ASSIGNOR TO THE CINCINNATI SHAPER COMPANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO.

SHAPING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 791,225, dated May 30, 1905.

Application filed April 13, 1904.. Serial No. 202,944.

To all whom, it may concern: I

Be it known that I, JAMEs C. STEEN, a citizen of the United States, and a resident of Cincinnati, in the county of Hamilton and State of Ohio, have invented a certain new and useful Improvement in Shaping-Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which form a part of my specification.

My invention relates to shaping-machines, and more particularly to the tool-carrying head thereof. Its object is to prov'de a head which is adapted to plane or mill out concave cylindrical surfaces and which is connected with mechanism by which the circular feed of the tool maybe varied at will, but always maintained constant at the rate of feed determined upon. Its advantages will appear as I proceed with my specification. c

In the drawings, Figure 1 is a side elevation of my invention shown partially in vertical section. Fig. 2 is a section through the same on the line 2 2 of Fig. 1

A is the bed of the sha ing-machine, B the ram, and C the tool-head The head C comprises an outer casing of sleeve O, which is rigidl secured to the ram, and a tool-holder swive D, which extends the lengthof said sleeve or outer casingC and is suitably j ournaled therein so as to have no longitudinal play. The tool E is adjustably secured to the end of the tool-holder swivel D below its center in any convenient and usual manner.

It is apparent that an intermittent rotation of the tool-holder swivel at each reciprocation of the ram will cause the tool to drive over a concave cy-indrical surface. This is produced as follows: At the inner endof the swivel D a worm-wheel D is secured. The inner end of the casing 0 above the wormwheel is provided with a journal-box F, in which works a worm G, mounted on a shaft G. One end of the shaft G projects beyond the journal F. Loosely mounted on the pro-' jection of the shaft G is a rocker c, carry1'ng the spring-controlled reversible pawl b,which normally engages with a ratchet-wheel a,

keyed to the shaft G. Loosely mounted on a boss on the end of the journal-box is a sleeve cl, having a projecting'flange d, which covers the teeth of the ratchet-wheel wexcept for a short distance, where it leaves it exposed to the action of the pawl b. A depending arm 6 is loosely mounted on the end of the shaft G and is adapted to en age with extending lugs e e on the end of t e rocker a, so that the rocking of the arm e will be communicated to the rocker c. A bracket j, carryin a pin f is adjustably mounted on the bed- Iate of the machine. The construction and arrangement of the rocker-arm, ratchet-wheel, and sleeve is substantially like that described in Letters Patent N 0. 656,795, granted to Steen and Warner, and its operation is a parent from the drawings.

It is evident t at as the ram reciprocates backward and forward the arm 6 will be struck by the pin f and the shaft G intermittently rotated by means of engagement of the pawl b with the ratchet-wheel a and that the amount of this rotation at each stroke and its direction is controlled by the adjustment of the sleeve (2 and the pawl 12, as described in the patent referred ,to. The rotation of the shaft G will of course through the worm G cause the worm-wheel D to rotate, and with it the tool-holder swivel D. The tool will thus be caused to travel over a concave cylindrical surface, the rate and direction of its circular feed being determined by the positions of the sleeve d and the pawl b. The shaft G is preferably provided with a hand-wheel K for quick angular adjustment of the swivel.

Having thus described my invention, what I desire to claim as new and to cover by Letters Patent is' 1. In a shaping-machine, in combination with the bed-plate and ram, a tool-head comprising an outer shell or casing, and a toolholder swivel journaled therein, a worm-gear keyed to said swivel, a worm journaled on said outer casing in engagement with said worm-wheel, and mechanism intermediate the bed-plate andsaid worm-shaft, adapted to intermittently rotate said swivelupon the reciprocation of the ram, substantially as described.

2. In a shaping-machine, in combination with the bed-plate and ram, a tool-head comprising an outer shell or casing and a tool-holder swivel journaled therein, a wormgear keyed to said swivel, a worm journaled on said outer casing in engagement with the said worm-wheel, a ratchet-wheel keyed to'l said worm-shaft, a rocker-arm j ournaled on said shaft, a spring-controlled pawl carried by said rocker-arm, adapted to engage said ratchet-Wheel, means for regulating the effective throw of said rocker-arm, and mechanism intermediate said rocker-arm and said bed-plate adapted to rock the same upon the reciprocation of said ram, substantially as described.

J AMES C. STEEN.