Railways – Traction – Chain
Patent
1996-10-15
1997-09-09
Le, Mark T.
Railways
Traction
Chain
B61B 1000
Patent
active
056645015
ABSTRACT:
A power and free conveying system includes a track assembly having a power track and a free track spaced vertically from the power track, a power trolley supported on the power track for movement therealong and a free trolley supported on the free track for movement therealong. The free trolley includes a moveable holdback dog engageable and disengageable with the power trolley. The free trolley includes a retractable dog having a first position engageable with the power trolley and a second position disengageable with the power trolley and engageable with the holdback dog to completely disengage the free trolley from the power trolley upon engaging another one of the free trolley. The track assembly includes a C-shaped first side support member having an upper transverse end connected to the power track and a lower transverse end connected to the free track and a C-shaped second side support member opposite and spaced from the first side support member having an upper transverse end connected to the power track and a lower transverse end connected to the free track.
REFERENCES:
patent: 1062314 (1913-05-01), Wittch
patent: 2973721 (1961-03-01), Wagter
patent: 3477390 (1969-11-01), Dolding
patent: 3726234 (1973-04-01), Dema et al.
patent: 3793965 (1974-02-01), Winters
patent: 3830165 (1974-08-01), Turner
patent: 3861323 (1975-01-01), Turner
patent: 3869989 (1975-03-01), Pickstone
patent: 3906867 (1975-09-01), Knudsen
patent: 4004680 (1977-01-01), Warmann
patent: 4031829 (1977-06-01), Bell et al.
patent: 4122778 (1978-10-01), Di Rosa
patent: 4341161 (1982-07-01), Morita et al.
patent: 4405042 (1983-09-01), Dehne
patent: 4464998 (1984-08-01), Wakabayashi
patent: 4474286 (1984-10-01), Alexander
patent: 4475462 (1984-10-01), Tsumaki et al.
patent: 4480743 (1984-11-01), Dehne
patent: 4635558 (1987-01-01), Hoehn
patent: 4640196 (1987-02-01), Dehne
patent: 4646650 (1987-03-01), Kondo et al.
patent: 4790427 (1988-12-01), Dixon
patent: 4850281 (1989-07-01), Kurek
patent: 4852723 (1989-08-01), Ellens
patent: 4936222 (1990-06-01), Murai
patent: 5009168 (1991-04-01), Kuchta
patent: 5014843 (1991-05-01), Linton et al.
patent: 5023974 (1991-06-01), Coles
patent: 5363770 (1994-11-01), Makinmra et al.
patent: 5400717 (1995-03-01), Hoehn
patent: 5570639 (1996-11-01), Hooper et al.
Ford Motor Company
Le Mark T.
May, Esq. Roger L.
Stock, Esq. Daniel M.
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