The Architectural magazine . is done by a man standing on the gangway,the worm-wheels, and consequently the chain barrels, will movein opposite directions; and, hence, one chain will wind up uponone of the barrels, while the other will wind off; so that the onewinding up will o)>en the gate, while the other one will slack outits chain just enough to allow it to do so. On reversing themotion, of course the gate will be closed. It is unnecessary to enter into any investigation of the power,as it may be modified at pleasure; but I conceive the arrange-ment shown would give such a relation betw
The Architectural magazine . is done by a man standing on the gangway,the worm-wheels, and consequently the chain barrels, will movein opposite directions; and, hence, one chain will wind up uponone of the barrels, while the other will wind off; so that the onewinding up will o)>en the gate, while the other one will slack outits chain just enough to allow it to do so. On reversing themotion, of course the gate will be closed. It is unnecessary to enter into any investigation of the power,as it may be modified at pleasure; but I conceive the arrange-ment shown would give such a relation between power and re-sistance, that one man would cause the hand-wheel to spin roundwith ease, and act as ixjlij-dcheel; and the power, wherever a worm-wheel is used in cases similar to the present, should be arrangedso as to produce that effect. Two worms, at right angles to the position shown, might beused; but their tlwustyio\x\d not be so well resibted as at present, a2 328 Improved Methods of constructing Valves or Sluices,. 0 L 1 ] , - J L 1- ±._^J. J L 10 I ^5 applied lo Canal and Dock Gates, <^c. 2-29 IS^il^i,
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Keywords: ., bookcentury1800, bookdecad, booksubjectarchitecture, bookyear1834
