Title: Motorized overhead trolley

Abstract: The invention has reference to an overhead trolley, particularly for tracks in a store, its wheel running on a rail driven by a motor, where actuation of the pivoted auxiliary wheel assembly elevates the trolley to support the driven wheel of the trolley on a support wheel and the auxiliary wheel above a rail of the tracks. The trolley includes an arrangement with an auxiliary wheel, which may be pivoted manually into and out of engagement with the rail surface. Pivoting the auxiliary wheel into engagement with the rail surface has the effect of raising the drive wheel from the rail surface so that a disabled trolley may be pushed out of the way.

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Inventors: Kaufmann, Karl E. (Wetter, DE, US)

Application Number: 783609
Filing Date: 1977-04-01
Publication_date: 1979-08-14
Assignee: DeMag Aktiengesellschaft (Duisburg, DE)
Primary Class(es): 104/93 104/109, 105/150, 105/156
Other Classes:
US Patent Ref:

1725264	Aug, 1929	Garnet	105/156.
2157650	May, 1939	Fildes	105/215.
2302196	Nov, 1942	Downs et al.	104/89.
2731922	Jan, 1956	Robb	105/156.
3437314	Apr, 1969	Minor	105/148.
3935822	Feb, 1976	Kaufmann	105/153.

Other Refs: 614895

Dec, 1948	GB

Primary Examiner: Makay, Albert J.
Assistant Examiner: Beltran, Howard
Attorney: Mandeville and Schweitzer