US6988A - Improvement in connections of brakes with cars - Google Patents

Description

KIMBALL & RICE.

I Car-Brake Shoe. I No. 6,988, Patented, Jan 1, 1850.

wine 35' Q ZZ 2 {a /4@ ATENT OFFICE.

JOHN KIMBALL AND HARVEY RICE, OF CONCORD, NE\V HAMPSHIRE IMPROVEMENT IN CONNECTIONS OF BRAKES WITH CARS.

Specification forming part of Letters Patent No. 6,988, datedJannary 1, 1850.

To all whom, it may concern.-

Be it known that we, JOHN KIMBALL and HARVEY RICE, both of Concord, in the county of Merrimac and State of New Hampshire, have invented a new and Improved Mode of Hanging Brakes to Passenger and other Railroad-(Jars, and Snspending or Connecting other Similar Machinery; and we do hereby declare that the following is a full and exact description of the same.

This invention consists in placing a tube, coating, or lining of india-rubber or other elastic substance around a link or pin passing through a box or casing which contains the brake or other portion of machinery and inc-losing and confining such rubber or other substance by such box or casing, so as to hold the rubber in a permanent position, except so far as its elasticityis affected by the pressure or motion of the link or pin whenever the brake or other portion of machinery is used, thereby causing the rubber to act and react within itself without any rubbing or friction of the link orpin in which it is inclosed, thus avoiding all wear of these portions of ma chinery and all rattling and noise and obviating the objection arising from attaching or connecting the brakes or other similar machinery in the mode how in use by an iron hinge orlinks suspended on pins in wood, iron, or other metal and constantly wearing them so that they become weak and hazardous and require to be replaced and make a continual rattling and noise; also, constructing such brake or other portion of machinery with a second box or casing inclosing the other end of the link, one end of which box is secured by a bolt or bolts to the brake or other machinery, as shown in the drawing at letter 13, thereby forming a double joint to the brake and enabling the brake to be applied so as to adapt itself to the wheel at all times with the same force through the whole are of the brake and not more at the top of the brake than at the bottom, as is the case with brakes without such joint, and without any difference whether the springs of the truck-frame are more or less depressed. This joint may be coated like the first, and thereby enable it to operate without wear or noise.

hat we claim as our invention is- The inclosure of said link or pin in a tube, coating, or lining of india-rubber or other elastic substance and securing said rubber in a box or casing, so as to confine the same permanently in such way as to allow the action of the brake or othermachinery without wear or friction, rattling, or noise.

JOHN KIMBALL. HARVEY RICE.

Witnesses:

N. G. UPHAM, Z. S. PACKARD.

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