Mechanics' magazine and register of inventions and improvements . sheave on the crank shaft, andover a larger sheave on the hind wheels turn loose on the axle, and oneor other, or both, are fixed by a clutch whenrequired. This clutch is on the outside ofthe wheel, and can be screwed out or in, asthe case demands, with great facility. Theturning of the carriage round to the offsideis prepared for by throwing out the offsideclutch and keeping in the near one ; and theturn round to the near side is prepared forby throwing out the near clutch, and throw-ing in the offside clutch. A li
Mechanics' magazine and register of inventions and improvements . sheave on the crank shaft, andover a larger sheave on the hind wheels turn loose on the axle, and oneor other, or both, are fixed by a clutch whenrequired. This clutch is on the outside ofthe wheel, and can be screwed out or in, asthe case demands, with great facility. Theturning of the carriage round to the offsideis prepared for by throwing out the offsideclutch and keeping in the near one ; and theturn round to the near side is prepared forby throwing out the near clutch, and throw-ing in the offside clutch. A little play isleft between the catches in each clutch, sothat a winding road may not oblige either On the Strength of Men and Animalt. 61 wheel to be disengaged; and it is only in ashort turn, or a turn round, that the clutchmust be shifted, and this can be done in avery small space of time. The engraving annexed represents an ele-vation of the boiler, with part of the casingremoved, for the purpose of exhibiting theinterior structure. A is one of the fire doors,. of which there are two. B the fire-place;D the stoke-hole ; E E the chambers, con-structed of the best wrought iron ;^ F showsthe manner in which all the chambers arebolted together, so as to form a large boilerof many compartments. There are filletsof iron, which keep the individual compart-ments at a proper distance from each other;and the spaces which these fillets leave arethe flues of the boiler, through which theflames ascend, as shown at H H H. Allthese compartments are connected at thebottom for the purpose of keeping the wa-ter in each at the proper level; and at thetop the steam is conveyed from each by asmany pipes as there are chambers, into thesteam feed-pipe, by which steam is conveyedto the engines. By this arrangement theonly parts of the boiler which can be dread-ed are the sides, but good ties will keepthem together. And as to the bottom endand top of the boiler, which are composedof the edges of these
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Keywords: ., bookcentury1800, booksubjectindustrialart, booksubjecttechnology
