Track warning detonator

Details Track warning detonator Track warning detonator

1992-07-29

1993-11-30

Johnson, Stephen M.

Ammunition and explosives

Igniting devices and systems

Percussion primers or ignitors

102205, 10227511, 1022756, 246124, 246120, 116206, 116214, C06C 700

Patent

active

052655385

ABSTRACT:
A warning detonator for use on railway tracks or the like is disclosed. The detonator comprises a tube or cylinder (18) having disposed therein at spaced apart locations a length of elastomer (20) and a first explosive component (24, 25). A second explosive component (21) is located therebetween. The second explosive component (21) is also disposed within a cartridge (19) inside the cylinder (18). In use the cylinder (18) is affixed along a length of railway track in a manner whereby the wheel of a passing train progressively compresses the elastomer from its outer end so as to burst an end face (23) of the cartridge (19) and drive the second explosive component (21) into contact with the first explosive component (24, 25) to cause detonation thereof.

REFERENCES:
patent: 1325487 (1919-12-01), Morse
patent: 2507004 (1950-05-01), Gracey, Jr.
patent: 2652775 (1953-09-01), Swanson
patent: 2876701 (1959-03-01), Long
patent: 3575111 (1971-04-01), Richardson
patent: 3727045 (1973-04-01), Warren et al.
patent: 3739724 (1973-06-01), Tlam
patent: 3910190 (1975-10-01), Dare
patent: 4008870 (1977-02-01), Gardner et al.
patent: 4092926 (1978-06-01), Bell

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