Chain – staple – and horseshoe making – Chains – Conduit
Patent
1995-02-02
1997-07-22
Jones, David
Chain, staple, and horseshoe making
Chains
Conduit
191 12C, 248 49, 248 51, F16G 1316
Patent
active
056494157
ABSTRACT:
Apparatus for carrying one or more power conduits to a movable power consumer includes one or more power supply chains, a carriage between static and dynamic portions of the chain and movable in response to movement of the power consumer via a sheave and cable carriage drive and having rollers positioned in response to movement of the power consumer to support a dynamic portion of a power supply chain when it sags in a chain guide tray as a result of the chain travelling beyond its self-supporting travel distance. The carriage rollers have a radius substantially less that the predetermined bend radius of the chain so that a compact, light-weight, low center-of-gravity carriage is provided for movement in a chain guide tray.
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Gleason PowerTrak, Cable/Hose Carrier Reference Guide, Cover page and pp. 42, 43, 44; dated 1994.
Gleason PowerTrak GRP, Non-Metallic Cable/Hose Carrier, Cover page and pp. 28, 29; dated 1994.
A and A Manufacturing Co. Inc., "GORTRAC Cable and Hose Carrier Systems", 6 pages 1985.
Belschleppketten fuer Energie-, Steuer- und Speiseleitungen zu beweglichen Verbrauchern, pp. 22-25.
'Hubbell Incorporated
Jones David
Timmer Edward J.
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