Implements or apparatus for applying pushing or pulling force – Resilient tire-casing spreaders
Patent
1977-08-17
1979-06-05
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Resilient tire-casing spreaders
B66F 310
Patent
active
041571711
ABSTRACT:
Tensioning device for chains etc. for lashing, for example, rolling cargo on ships' decks, comprising an oblong housing with a chain- or wire-rope-fastening device at one end, a threaded spindle journalled inside the housing, and on the spindle a non-rotatable sliding piece movable on rotation of the threaded spindle in the longitudinal direction of the housing and guided in it, the sliding piece projecting, with a part fitted with another chain- or wire-rope-fastening device, radially from a longitudinal slot in the housing, the which part is connected with a tubular element longitudinally displaceable on the housing, said tensioning device being able to be brought by means of said chain- or wire-rope-fastening devices at the side of a chain or wire rope for tensioning it, the threaded spindle owing inter alia to its being designed with low pitch on the gear reducton principle and to its bearing against the end of the housing by means of a collar, and owing to its drive connection on the housing in the form of a preferentially parallelepipedic power connection, unimpeded by the chain, for working with a motor-driven, preferentially pneumatically driven unit, so permitting rapid actuation of the tensioning device and a large tensional force during loading and discharging.
REFERENCES:
patent: 1489123 (1924-04-01), Heatherington
patent: 2382447 (1945-08-01), Schaeufebe
patent: 2884225 (1959-04-01), Ford
patent: 3747895 (1973-07-01), Martin
patent: 3980275 (1976-09-01), Sanchez
Seasafe Transport AB
Watson Robert C.
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