Drive mechanism for a line-pulling apparatus

Details Drive mechanism for a line-pulling apparatus Drive mechanism for a line-pulling apparatus

1976-06-28

1978-06-06

Hoffman, Drayton E.

Implements or apparatus for applying pushing or pulling force

Step-by-step traveling bar

Pawl actuated

74505, B66D 130

Patent

active

040931854

ABSTRACT:
In a line pulling apparatus comprising a capstan and a pulley that rotate in unison on the stationary sleeve of a conventional capstan drive unit, line is wrapped around both the capstan and pulley for positive gripping of the line. A stationary plate member disposed between the capstan and pulley, contains a set of gears that extend above and below the plate member for stable, three-point engagement with teeth formed in the capstan and pulley. A line guide mechanism including a cut-out section on the plate member guides line from the capstan to the pulley. An upstanding member formed on the plate member holds the line in the pulley during rotation.

REFERENCES:
patent: 309477 (1884-12-01), Luther
patent: 1413292 (1922-04-01), Rauscher
patent: 3730483 (1973-05-01), Newell
patent: 3962935 (1976-06-01), Hutton et al.
patent: 3968953 (1976-07-01), Guangorena

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