Model railroad layout

Details Model railroad layout Model railroad layout

1976-07-01

1977-10-04

Spar, Robert J.

Railways

Car-carried propulsion system

Pneumatic

46212, 46216, 104147A, 104DIG1, B61B 1300

Patent

active

040517837

ABSTRACT:
Model railroad layout with a length of track formed near the ends of the rails with gaps and connected to an electrical source and a control means to reverse polarity on the rails when the engine wheel bridges a gap.

REFERENCES:
patent: 1402757 (1922-01-01), Frohne
patent: 2685844 (1954-08-01), Short et al.
patent: 2961797 (1960-11-01), Bonanno
patent: 3361082 (1968-01-01), Leslie
patent: 3675586 (1972-07-01), Haddad

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