Traversing hoists – Overhead – Cable
Patent
1978-11-21
1981-05-19
Kunin, Stephen G.
Traversing hoists
Overhead
Cable
104112, 104173R, 104239, 188 654, 212110, 212116, 212122, B66C 2100
Patent
active
042679320
ABSTRACT:
A carriage is provided for guided movement along a skyline and includes guide structure for supporting a dragline for longitudinal shifting relative to the carriage. A skyline stop is provided for coaction with the carriage to limit downward movement of the carriage along the skyline and latch structure is shiftably supported from the carriage for movement between applied and released positions and is spring biased toward the applied position. The latch structure is engageable with the skyline stop to prevent upward movement of the carriage along the skyline from its lower limit position established by the stop upon movement of the latch structure to the applied position. Further, abutment structure is carried by the lower end of the dragline depending downwardly from the carriage and is engageable with the latch structure for swinging the latter to its released position. In addition, brake structure is supported from the carriage and includes an operator shiftable between applied and released positions and spring biased to the applied position. The operator and stop include coacting portions for automatically shifting the operator toward the released position from the applied position thereof upon final movement of the carriage downwardly along the skyline to its lower limit position established by the stop.
REFERENCES:
patent: 486164 (1892-11-01), Law
patent: 598145 (1898-02-01), Gaines
patent: 983772 (1911-02-01), Sain
patent: 1360475 (1920-11-01), Venable
Rhoades Colin C.
Vessey Rodney W.
Jacobson Harvey B.
Kunin Stephen G.
Rishell, Jr. Edmond G.
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