Handling: hand and hoist-line implements – Hook – hoistline – or grab type – Load releasing means
Patent
1994-01-11
1996-07-23
Brittain, James R.
Handling: hand and hoist-line implements
Hook, hoistline, or grab type
Load releasing means
245991, 245998, 294 8219, B66C 136
Patent
active
055383033
ABSTRACT:
A snap hook (H) is adapted to be connected to a ring eye (RE). Snap hook (H) includes a hook eye (HE) at its base end (14). A hook line (L) is connected to the hook eye (HE). Hook (H) includes a shank (20) which extends from the base (14) to a bight (22). The tine (24) is connected to and extends from the bight (22). A spring (40) normally biases a snap finger (36) into a hook throat closing position against the tine end (28). A tether (44) is connected to the snap finger (36). Tether (44) extends over the free end (42) of snap finger (36) to and through a tether guide (G) formed in or provided on the hook shank (20). The location of the tether guide (G) and the location of the tether (44) over the end (42) of the snap finger (36) establishes a pull line (PL). This pull line (PL) forms an acute angle (X) with the inner surface (26) of the hook tine (24). This acute angle (X) is between about thirty degrees and about forty degrees, with about forty degrees being preferred. Several ways of forming the tether guide (G) are disclosed. Several forms of the tether (T) are disclosed.
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Brittain James R.
Griffiths Paul L.
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