. Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry . s necessaryto allow enough clearance for manipulating it when inthe extreme outward position. A ratcheting handle insteadof a hand wheel is often used for turning the screw wherespace is limited or when the force required for adjustingthe box is considerable, as in the case of some bucketelevators with the take-up at the top. When used in con- TAKE-UPS AND TIGHTENERS 463 junction with a housed-in bucket elevator, the adjustab
. Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry . s necessaryto allow enough clearance for manipulating it when inthe extreme outward position. A ratcheting handle insteadof a hand wheel is often used for turning the screw wherespace is limited or when the force required for adjustingthe box is considerable, as in the case of some bucketelevators with the take-up at the top. When used in con- TAKE-UPS AND TIGHTENERS 463 junction with a housed-in bucket elevator, the adjustablebearing box (Fig. 177),carries a dust slide which effectivelyprevents the escape of material from the elevator nomatter in what position the box is set. Occasionally theouter end of the box is itself closed as a protection to thebearing. Floor stand take-ups (Figs. 178 and 179) are used atthe head ends of some types of elevators. The supportingframes are arranged to stand directly on the floor, the The double pipe take-up is fitted with a self-aliningbearing carried on pipe frames. For heavier work, steelshafting is used in place of pipe, but this take-up is not. Figs. 175, 176, 177, 178 and 179 adjustment being vertical. The screws may be arranged tobe either in tension or compression. The simple take-up (Fig. 180) has a box guided by asingle tongue and groove joint. It is suitable only foruse on the lighter types of conveyors. Either cast iron (Fig. 181) or steel frame take-ups
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Keywords: ., bo, bookcentury1900, bookdecade1920, booksubjecthoistingmachinery
