Chicago : Engineering and Contracting Pub. Co. · leaf 313
scribed by A. O. Christensen in the Engineer-ing and Mining Journal. The door consists of a piece of heavy sheeiron D. bent into a half circle. The heighof this sheet equals the height and its diaraeter the width of the chute mouth. The shee.iron* has two % or %-in holes, each bore(about one-third… … Sketch of Handy Chute Door. the sides of the chute mouth, with about I1in. to spare, arc placed and locked, as shoviat It. In order to hold the chute door frOBflying open from the weight of the ore iflthe chute, a bolt A is inserted, thus holdimthe door closed. To fill a car from the chute, the…
Buildings
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