. Seasoning of wood; a treatise on the natural and artificial processes employed in the preparation of lumber for manufacture . car is transferredto the unstacker (see Fig. 47). Here it is placed on theunstacker car which, by means of a tension device, holdsthe load of lumber tight against the vertical frame of theunstacker. The frame of the unstacker is triangularand has a series of chains. Each chain has two speciallinks with projecting lugs. The chains all travel in lug links engage a layer of boards, sliding the entirelayer vertically, and the boards, one at a time, fall overthe
. Seasoning of wood; a treatise on the natural and artificial processes employed in the preparation of lumber for manufacture . car is transferredto the unstacker (see Fig. 47). Here it is placed on theunstacker car which, by means of a tension device, holdsthe load of lumber tight against the vertical frame of theunstacker. The frame of the unstacker is triangularand has a series of chains. Each chain has two speciallinks with projecting lugs. The chains all travel in lug links engage a layer of boards, sliding the entirelayer vertically, and the boards, one at a time, fall overthe top of the unstacker frame onto the inclined table,and from there onto conveyor chains from which theymay be delivered to any point desired, depending uponthe length and direction of the chain conveyor. With these unstackers one man can easily unload akiln car in twenty minutes or less. The experience of many users prove that these edgestacking machines are not alike. This is important,because there is one feature of edge stacking that mustnot be overlooked. Unless each layer of boards is forced DRY KILN SPECIALTIES 211. Fig. 47. The Lumber Unstacker Car, used for unloading cars of Lumberloaded by the Automatic Stacker.
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyorkdvannostran
