Chain grab hook providing for a flat lay cross-over link

Details Chain grab hook providing for a flat lay cross-over link Chain grab hook providing for a flat lay cross-over link

1981-02-09

1982-12-14

Cherry, Johnny D.

Handling: hand and hoist-line implements

Hook, hoistline, or grab type

Locking device

242305R, 59 93, B66C 134

Patent

active

043635091

ABSTRACT:
A chain grab hook (10) which engages the cross-over link (30) in a generally flat lay or generally horizontal position is disclosed. The free-end portion (14) of the grab hook (10) includes a support surface (40) which supports the flat face of the cross-over link (30) over a substantial length of the link and over a substantial surface area. The tip (48) of the free-end portion (14) of the hook (10) projects inwardly to provide an obstruction which tends to prevent accidental chain slide-out. The support surface (40) may be slightly angled relative to the horizontal to cause the side links (32, 36) to rotate toward the neutral fiber center (26) of the hook (10) to reduce the moment arm applied by the loaded chain on the hook.

REFERENCES:
patent: 336687 (1886-02-01), Barr
patent: 1339986 (1920-05-01), Schmidt
patent: 1494289 (1924-05-01), Round
patent: 1758744 (1930-05-01), Haubert
patent: 3863441 (1975-02-01), Kaufmann
patent: 4070823 (1978-01-01), Schreyer et al.
patent: 4280728 (1981-07-01), Fredriksson

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