This lever is bolted to a disk g, which is provided with cross-slots g', by which the lever may be set in dierent positions according to the position in which the hoist is fixed. The lever maybe operated by a rope or chain, so that it l may be worked from adistance. The disk g is provided with a stud or shaft g2, journaled in a bearing-block g3, and to the end of the shaft an arm h is rigidly connected.
The arm h projects into a hollow base-plate t', and toit is connected one end of a spring k, the other end of which is secured to a hook Z, bolted to a block m, secured to the base or otherwise attached to some fixed point. The driving mechanism, which includes the disk or ring c', may be kept constantly running, if desired, and to put the hoistin action the lever is pushed over, so as to remove the face c5 from disk c2 and put the face c4gradually into contact with the rotating disk or ring o.
What I claim is- In a hoist the combination with a reductiongear and a drum of a part driven through the gear a fixed part separated from the irst a shaft on which the drum is supported means for shifting said shaft longitudinally toggles carri-ed by saidshaft and friction-faces on said toggles adapted to be brought'into contaet alternately with the driven part and the fixed part substantially as described. In testimony whereof I have hereunto set my hand inI the presence of two subscribing zo Witnesses:.
As the cage neared the top or bottom of the shaft the regulator automatically slowed it down. The cables themselves were made of steel wires coiled together like rope. Later on these cables would often have a fibre core in order to better absorb the lubricant that kept the cable running freely. They wore distinctive hard hats with large brims that extended at the back to protect them from falling debris.
You can see two men wearing these hats in the photograph of Farme Colliery near the top of this page. Winding Getting the coal to the surface was one of the trickiest operations — and one of the most dangerous too. Mine Sinking Engine, around View item. Colliery Winding Engine, s View item. Sample of Wire Rope View item. Wire Ropes Catalogue, View item. The Iron Boat: the Story of the Vulcan. Profile of a Provost: James Russell Coal Face to Fireplace 2: Hewing Coal.
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