OAKKV PARK COLLTKUY. 



123 



Horses are sent below in a horse-box, provided with double 

 doors at either end. The small upper door opens sideways, but 

 the lower door has its hinges on the bottom, sof that it can 

 open downwards and serves as a stage for horses to walk over. 



Fig. 63. Crossing. 



The box has shoes to engage the guides in the shafts, and it is 

 suspended from the bottom of the cage by a ring attached to 

 the top of the horse-box, which passes through a. hole cut for 

 it in the floor of the cage. This is secured by passing a bar 

 through the ring so that it can rest on the rails in the cage. 



The skips are built up on a rectangular wooden frame- 

 work (.Fig. 64), underneath which a draw-bar is bolted, which 

 has a hook at either end. As all the pull is on the draw-bar, 

 the wooden structure is not strained. The skip wheels are 

 kept in their bearings by round iron bolted into position, 

 which is bent inward, so that the greasers can lubricate the 

 axle opposite the bearings. The bottom of the skip is made 

 ip of four planks, the sides and ends being made of two 



Pin 11 from Below. 



re 



Side Elevation. 

 Fig. 61. Undercarriage of Skip. 



