Railway rolling stock – Wheel or axle drive – Fluid transmission
Patent
1994-09-01
1997-01-28
Oberleitner, Robert J.
Railway rolling stock
Wheel or axle drive
Fluid transmission
105 2605, 105 99, 74415, 464160, B61C 900
Patent
active
055969372
ABSTRACT:
It is frequently observed that when a real locomotive starts up, the front set of drive wheels commences to turn before the rear set of drive wheels begins to turn. The present invention is a simple device that permits this effect to be simulated in a model locomotive. The electric motor of the model locomotive drives a worm which turns a first gear. A second gear is mounted on the same shaft as the first gear but is not otherwise connected to the first gear. From the side of the first gear that faces the second gear, a pin extends at a particular radius. Similarly, two pins extend at the particular radius from the side of the second gear that faces the first gear. When the motor starts, the first gear turns immediately, but rotation of the second gear is delayed until the pin on the first gear strikes one of the pins on the second gear. In this way a delayed rotary motion is imparted to the second gear.
REFERENCES:
patent: 465869 (1891-12-01), Maclean
patent: 2640338 (1953-06-01), Charvat
patent: 2920502 (1960-01-01), Bungart
patent: 4274337 (1981-06-01), Shaw
patent: 4540380 (1985-09-01), Kennedy et al.
patent: 4889002 (1989-12-01), Abraham
McKown Daniel C.
Morano S. Joseph
Oberleitner Robert J.
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