USRE12504E - Rail-bond for steam and electric railways - Google Patents

Description

REISSUED JULY 1?, 1906.

P. G HOFFMAN. RAIL BOND FOR STEAM AND ELBCTRIG RA ILWAYS.

APPLIUATIQN FILED JUNE 9, 1906.

Wz'irtesaegsv v j z f v UNITED STATES PATENT OFFICE.

FRANK CARPENTER HOFFMAN,

RAIL-BOND FOR STEAM A Specification of Reissued Letters Patent.

OF SOMERVILLE, NEIV JERSEY. ND ELECTRIC RAILWAYS.

Reissued July 17, 1906.

Original No. 812,040, dated February 6, 1906. Application for reissue filed June 9, 1906. Serial No: 321,072-

To all whom, it mag concern.-

Be it known that I, FRANK CARPENTER HOFFMAN, a citizen of the United States, residing at Somerville, in the county of Somerset and State 5f New Jersey, have invented new and useful Improvements in Rail-Bonds for Steam and Electric Railways, of which the following is a specification.

This invention relates to rail-bonds for steam and electric railways.

The objects of the invention are to'improve and simplify the construction of such devices;

thermore, to increase their efficiency in operation.

With the foregoing and other objects in view, which will app the details of construction hereinafter dethereof.

part pf this specificat on, Figure 1 1s a p new of a spht sleeve having straight overlappingledges. Fig; 4 is a transverse section g the rail-joint. Like. reference numerals sponding arts in the different views.

The re creme-numerals 1 and 2 indicate" rail ends, which are connected by means of the fish-plates 3 in the usual manner. The bond-wire 4 has its ends fitted into openings 4 of the web portions ofthe two rails, as

overlapping e tapered in form, We and is driven into the rail-webs indicate corretightly-in the openings therein. As each of the split sleeves 5 is driven into the rail it rolls tightly around the bond-wire, this rolling action being facilitated by the inclined edges ofthe sleeves, which slide freely upon each other. In this manner a firm, uniform, and waterproof joint between the bond-wire and the rail is produced.

In manufacturing the improved split sleeves the overlapping edges 6 thereof may be either curved, as shown in Fig. 2, or straight, as shown in Fig. 3.

am aware that split sleeves or bushings have been em loyed heretofore in connection with rail-bonds, and I do not claim the use of ever, that-asplit sleeve having overlapping edges'fofi- 'the purpose specified has been emp ticular construction.

aving thus described the invention, what is claimed is openings the inclosed ends of the wire which action also permits said sleeves to be ti htly fitted into the openings in the rails, su stantially as specified. In testimony whereof I have affixed my signature in presence of two witnesses.

. FRANK CARPENTER HOFFMAN. Witnesses:

A. H. LEIVERS, W. D. BRADY.

oyed, and my lnvention resides in this para split sleeve broadly. I am not aware, howto tightly embrace

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