Patent · US Expired

Method and device for fabricating insulated joints for railroad tracks

US4464831A · kind A · utility

5Cited by

11References

15Claims

0Family size

Assignee

Klockner-Werke Aktiengesellschaft · DE

Inventors

Lothar Weber · Stuttgart, DE
Friedhelm Wojtek · Lotte, DE
Horst Schwarzbach · Xanten, DE

Key dates

Filing date	Feb 10, 1982
Grant date	Aug 14, 1984
Priority date	—
Expiry date	Feb 10, 2002

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/532
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A method of fabricating an insulating joint between a pair of end abutting rail sections of a railroad track includes the suspension of a pair of opposed fishplates at the rail joint at spaced distances outwardly of the rail sides, and simultaneously heating the rail sections and the fishplates to a predetermined temperature for activating a heat-activatable adhesive provided in fabric cuffs which are disposed between the fish surfaces and the fishplates. The fishplates are shifted along guide rods of their support assemblies inwardly toward one another into place against opposed fish surfaces of the rail sections, and are thereafter bolted in place. A device for fabricating the joint includes a box-like hood on which heaters are mounted, or a shear assembly supporting the heaters and being clamped onto the rail head. The heaters may be adjusted to accommodate various rail profiles.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.