Machine for engaging and rotating concrete crosstie bolts

Details Machine for engaging and rotating concrete crosstie bolts Machine for engaging and rotating concrete crosstie bolts

1978-06-12

1980-08-05

Love, John J.

Railways

Track layers

Trail rail mounted rail anchor applicator

91443, 91463, E01B 2928

Patent

active

042156360

ABSTRACT:
A machine adapted for travel along a pair of railway rails supported by concrete crossties and arranged to be attached thereto by a pair of clips disposed inside and outside of each rail together with a bolt passing through each clip into threadable engagement within the crosstie. An engine on the machine powers a pressurized fluid system which, according to control signals from an operator on the machine, moves the machine along the rails and according to other control signals moves work heads so as to position fluid driven sockets in engagement with the heads of the four bolts to be inserted into or removed from a crosstie. Devices on the machine then are operated to simultaneous screw or unscrew the bolts into or from the crosstie and during this operation each bolt is torqued to a specified limit.

REFERENCES:
patent: 3064428 (1962-11-01), Plasser et al.
patent: 3202060 (1965-08-01), Grotness
patent: 3625007 (1971-12-01), Herndon, Jr.
patent: 3722423 (1973-03-01), Plasser et al.
patent: 4051764 (1977-10-01), Murata

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