THE WAREHOUSING OF GRAIN. 141 



that being the case, the shape of the spindle is very im- 

 portant ; it should be sufficiently blunt to prevent any 

 tendency to jam. The rollers should be well balanced 

 when in motion, and the bearings should be kept well 

 lubricated. 



Each of the elevators has two " legs," which at top and 

 bottom are encased in steel, the intermediate part being 

 made of wood. The elevator bands are made of American 

 elevator leather belting, 20 inches wide, jointed with 

 cement, and with copper rivets, and also stitched. The 

 buckets, which are of steel, are fixed at intervals of about 

 18 inches by means of bolts. At the top and bottom of 

 each elevator are sheaves 3 feet in diameter and 21 inches 

 wide. The bottom sheave is supported on bearings, with 

 adjustable slides for tightening the bands. The driving 

 gear is at the top, the elevator being driven by the 

 hydraulic engine by means of a link chain. 



The building was erected from the designs and under the 

 directions of Mr. John Ward Grirdlestone, the Docks En- 

 gineer ; and the grain machinery contract was carried out 

 by Messrs. Spencer & Co., Bristol and Melksham. 



In the foregoing paper the author has given a description 

 of the principal methods employed for warehousing grain, 

 and hopes that it may prove of interest to the Section. 



