Railroad spike

Details Railroad spike Railroad spike

1991-11-08

1992-11-03

Bucci, David A.

Railways: surface track

Fastenings

Spikes

411922, E01B 904

Patent

active

051600854

ABSTRACT:
An improved railroad spike, configured to resemble a conventional U.S. railroad spike as to its head, shank and tip. The improved spike features (1) a keyhole bore which extends between and through the head and top of the spike, and (2) and a pair of angular V-grooves on the shank in communication with the bore.

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patent: 880918 (1908-03-01), Reed
patent: 1200604 (1916-10-01), Giese
patent: 1210426 (1917-01-01), Craven
patent: 2745308 (1956-05-01), Gisondi
patent: 3004715 (1961-10-01), Gadd
patent: 3356300 (1967-12-01), Harrel
patent: 3396624 (1968-08-01), Eriksson et al.
patent: 3865307 (1975-02-01), Schiro
patent: 4203193 (1980-05-01), Arthur
patent: 4403734 (1983-09-01), Gorman
patent: 4797046 (1989-01-01), Ollivier et al.

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