. Spons' dictionary of engineering, civil, mechanical, military, and naval; with technical terms in French, German, Italian, and Spanish . ent if taken round at amuch higher speed. A boy, placed near this curve for the purpose of taking off the chains atthe fore end of the ingoing tubs, also attends to the curve when necessary. Near the inbye end of the slant way there is a flat at which the tubs are taken off and put on,whilst the tubs passing to and from the terminus are in motion. The place is laid with flat sheetsfor a few yards, nearly on a level with the rails. The empty tubs are disconn
. Spons' dictionary of engineering, civil, mechanical, military, and naval; with technical terms in French, German, Italian, and Spanish . ent if taken round at amuch higher speed. A boy, placed near this curve for the purpose of taking off the chains atthe fore end of the ingoing tubs, also attends to the curve when necessary. Near the inbye end of the slant way there is a flat at which the tubs are taken off and put on,whilst the tubs passing to and from the terminus are in motion. The place is laid with flat sheetsfor a few yards, nearly on a level with the rails. The empty tubs are disconnected, and broughtunder the rope between two outcoming sets of full tubs. Points are laid on to the full way, and afull set or gang of two or more full tubs is put on, when the slackness of the rope indicates a longdistance between two full sets. Apparatus for Tightening Hopes.—The tightening pulleys, as used in this system of conveyingsmall sets of one or more tubs by the endless rope, are fixed, and not similar to those used for theNo. 1 endless rope at Shireoaks and other places, where the varying strain upon the rope, owing to. the set of tubs being at difíerent parts of the plane, makes it desirable to have the tighteningap]:aratus movable. 1870 HAULAGE. The pulley is fixed on a strong timber frame, to which a screw is attached. The screw issecured by a chain to a balk placed upright, see Fig. 3935. It is doubtful what strain is the effectof these tightening screws, but the engineer gives the following as what he estimates to be aboutthe strain exerted. Experiments with Dynamometer.—In making these experiments the dynamometer was attachedby fixing clams to the rope about 4 yds. apart, and connecting the dynamometer by means ofchains. Fig. 3936, to these clams ; a screw was then applied to tighten the chain till the weightof the load upon the plane was wholly on the dynamometer. 3936.
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Keywords: ., bookcentury1800, bookdecade1870, bookidsp, booksubjectengineering
