Railways – Amusement – Submarines
Patent
1986-04-04
1988-09-13
Reeves, Robert B.
Railways
Amusement
Submarines
104 9, 37104, E01B 2910
Patent
active
047701030
ABSTRACT:
In a track maintenance vehicle, a cross tie exchanging mechanism is mounted on the vehicle comprising jaws which grip the end of the cross tie to be removed and operate to pull the cross tie from the road bed laterally from beneath the track rail and also operate to push a new cross tie laterally beneath the rails into the road bed. Rail clamps are provided to grip each rail at two spaced positions along each track rail to prevent the track rail from flexing when the track rail is unfastened from the cross tie to be removed. The rail clamps are also used to lift the track rails clear of the cross ties prior to operation of the tie exchanging mechanism to remove and replace a cross tie. A beam member supports the rail clamp so that the rails are laterally stabilized when lifted. The beam member is continuously laterally positioned independent of the lateral moveent of the vehicle by a guide member relative to the rails when the rail clamp is not engaged with the rails.
REFERENCES:
patent: 2996016 (1961-08-01), Keller
patent: 3832952 (1974-09-01), Hurni
patent: 4323013 (1982-04-01), Theurer
patent: 4399753 (1983-08-01), Theurer et al.
patent: 4579060 (1986-04-01), Wameny et al.
Brochure entitled, "Portec's RMC TKO Machine, Bulletin TKO-200.
Canron Corporation
Kananen Ronald P.
Reeves Robert B.
Werny Scott H.
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