Railways – Traction – Longitudinal rotary shafts
Patent
1981-01-21
1982-11-16
Peters, Jr., Joseph F.
Railways
Traction
Longitudinal rotary shafts
104 50, 198472, B61B 13012
Patent
active
043590004
ABSTRACT:
First and second tracks of a conveyor system intersect at right angles. A drive shaft is associated with each set of tracks. Driverless vehicles ride on the tracks and are provided with first and second sets of drive wheels. The sets of drive wheels are used alternatively and each set has an operative position and an inoperative position. A device is provided on the vehicle for moving the first set of drive wheels from a drive position to an accumulation position and thereafter moving the second set of wheels from an accumulation position to a drive position.
REFERENCES:
patent: 3118393 (1964-01-01), Ohlin
patent: 3356040 (1967-12-01), Fonden
patent: 3738284 (1973-06-01), Atsuta et al.
patent: 3845718 (1974-11-01), Rogers et al.
patent: 4036148 (1977-07-01), Jones et al.
patent: 4132174 (1979-01-01), Ziegenfus et al.
patent: 4259907 (1981-04-01), Schuck
Hill M. J.
Peters Jr. Joseph F.
SI Handling Systems Inc.
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