US18515A - Bailroad-car spring - Google Patents

Description

HIMQ PAIN E.

. Car Spring. No. 18,515. Patnted (hit. 27, 1857.

I"PETERS. WOTO-LH'HQGHAPHER, WASHINGTON. D. C,

UNITED STATES PATENT OFFICE.

HENRY M. PAINE, OF WORCESTER, MASSACHUSETTS.

RAILROAD-GAR SPRING.

Specification forming part of Letters Patent No. 18,515, dated October 27, 1857; Reissued. February To all whom it may concern:

Be it known that I, HENRY M. PAINE, of the city and county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Railroad-Car Springs, of which the following is a specification.

The object of my invention is to substi; tute animal or vegetable fibrous material for the india rubber and metalligspring now in use under railway cars, in such a form I make the tie rod A,Figure 1,0f iron tubing of the required lengthand diameter, and cut on either end a screw thread on which is fitted nuts B, B. The nuts B B work against, and draw together two metallic plates 0, c, which plates condense the fibrous disks D to the required density.

The hollow tie rod A, Fig. 1, receives the spring bolt E, Fig. 2, and thus secures the cylinder of disks firmly in its place without impairing its qualities as a spring.

That I claim as my invention and desire to secure by Letters Patent, is

The combination of fibrous disks with the hollow tie bar A, nuts B B and metallic plates C, C substantially as herein specified and set forth.

HENRY M. PAINE.

Witnesses:

ANNA BRIGGS, H. H. GILsON.

[Fms'r PRINTED 1912.]

Images