Lower block apparatus

Details Lower block apparatus Lower block apparatus

1997-01-16

1998-12-22

Kramer, Dean

Implements or apparatus for applying pushing or pulling force

Device or member for contacting and guiding moving cable

Including rotatable, cable contacting, pulley wheel element

254401, 254403, B66C 134, B66D 306

Patent

active

058510397

ABSTRACT:
A lower block, in particular for lifting tackle, having laterally arranged, rotatably mounted pulleys and a load hook which is mounted rotatably about a vertical axis and a horizontal axis and is connected via a connecting element to the pulleys. In order to reduce the overall height and the work involved in assembly of the lower block without correspondingly reducing its load bearing capacity, journals are formed integral with the connecting element and are arranged at opposite lateral ends thereof for supporting the pulleys. The load hook is arranged and axially secured in a recess defined in and open toward the bottom of the connecting element.

REFERENCES:
patent: 1896266 (1933-02-01), White
patent: 2317215 (1943-04-01), Parker et al.
patent: 2570320 (1951-10-01), Christensen
patent: 2781671 (1957-02-01), Devonshire
patent: 3179376 (1965-04-01), Botten
patent: 3210115 (1965-10-01), Graham et al.
patent: 3517761 (1970-06-01), Bartley et al.

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