US220847A

US220847A - Improvement in skiving-machines

Info

Publication number: US220847A
Authority: US
Publication date: 1879-10-21
Anticipated expiration: 1896-10-21

Description

G. E. LANGMAID. Ski'ving-Machine.

No. 220,847. Patented Oct. 21,1879.

WITNESSES: 2215mm @L W Y M owns;

UNITED STATES PATENT OFFICE.

CHARLES E. LANGMAID, OF STONEHAM, MASSACHUSETTS, ASSIGNOR TO HIMSELF AND GEORGE A. LANGMAID, OF MECHANICS FALLS, MAINE.

IMPROVEMENT IN SKlVlNG-MACHINES.

Specification forming part of Letters Patent No. 220,847, dated October 21, 1879; application filed March 11, 1879..

counters, and other work of a similar character. The invention consists in a vibrating knife that is hung upon the bed, and used in connection with the usual clamps or rolls for feeding the materiahand operated by mechanism as hereinafter described, whereby the cutting is done with greater facility than heretofore, and the machine may be used for the finest work.

The machine is shown in the accompanying drawings, wherein Figure 1 is a side elevation, partially in section. Fig. 2 is a plan view. Fig. 3 is an end view.

Similar letters'of reference indicate corresponding parts.

a represents the support for the horizontal shafts b c of the feedrolls d d, which parts are of usual character. The upper roll, (1, will be fitted for adjustment to and from the roll d! and feeding-bed e, and is kept down to its work by a spring, f, arranged in any desired manner. 7 u

The knife 1 is fitted upon bed 0 at the delivery side of the rollers. This knife is pivoted to e by a pin or screw, 27, that serves as a fulcrum on which the knife may vibrate horizontally and in a direction at right angles to the feed of the material.

The knife is operated by rod it, that is con nected to it, and passes to a crank-wheel, it, upon a worm-shaft, l, which is driven by a belt or other connection to the pulley m on shaft 1.

The worm l operates the worm-wheel a on the lower feeding-shaft, a, which shaft 0 also carries a gear, 0, that meshes with gear 19 on the upper feeding-shaft, b. By this construction the knife and feed-rolls are-simultaneously operated by power applied to pulley m, and the knife has a rapid vibration in comparison with the speed of rollers cl 61.

As the work is pressed up to the cuttingedge the knife, by its vibration, will act with a shearing cut, and with great ease and freedom. This action permits the material to pass through evenly, and adapts the machine for fine work.

The rolls will be self-adjusting for different thicknesses of material.

The knife g is shown as formed with a slightlycurved cuttingedge; but I do not limit myself in that particular, nor to the described manner of hanging the knife.

The knife will preferably be formed wider in proportion than a stationary knife for the same work.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The combination, with the feed-rollers or clamps d d, of the vihratin g knife g, hung upon the bed 0, and operated by the rod h, substantially as described and shown, and for the purposes specified.

2. In a skivin g-machine, the combination and arrangement, with the vibrating knife 9 and feed-roll shafts b c, of the rod h, crank k, wormshaft 1, worm-wheel a, gears o p, and driving- .pulley m, as and for the purposes specified.

CHARLES E. LANGMAID.

Witnesses:

AMos HILL, Amuen A. PLATTS.