Forfatter: A.-M.Inst.C E., George Frederick Zimmer
År: 1916
Forlag: Crosby Lockwood and Son
Sted: London
Sider: 752
UDK: 621.87 Zim, 621.86 Zim
Being a Treatise on the Handling and Storing of Material such as Grain, Coal, Ore, Timber, Etc., by Automatic or Semi-Automatic Machinery, together with the Various Accessories used in the Manipulation of such Plant
COAL TIPS OP HOISTS 5^9
of the winding gears and guide pulleys are of the roller type, friction being thereby
reduced to a minimum. . .
2 The Winch for Tipping the Cradle.—This is illustrated in Figs. 799 to 801
The tipping process is thus effected: The portion of the cradle which supports the coal
Figs. 802 and 803. Diagrams illustrating Tipping of the Cradle.
wagon is hinged by two trunnions on the water side, while two ropes at the back raise the
movable part of the cradle for the purpose of tipping the contents of the truck. he
diagrams, Figs. 802 and 803, show the connection of the ropes between the winch and
Figs. 804 to 807. Winch for Raising and Lowering the Discharge Shoot.