The Architectural magazine . 0 L 1 ] , - J L 1- ±._^J. J L 10 I ^5 applied lo Canal and Dock Gates, <^c. 2-29 IS^il^i,. Q 8 230 Improved Methods of constructing Valves or Sluices, where it is in the line of the top rail of the gate, to which theworm-shaft bearings are secured. To work well, this arrangement will require good workman-ship in every respect; but, with the best possible execution, itwill be admitted to be vastly less costly than the crab and tunnelsystem. The bearings of the shaft of the hand-wheel (.r) are se-cured to the under side of the gangway, and the wheel risesthrough i
The Architectural magazine . 0 L 1 ] , - J L 1- ±._^J. J L 10 I ^5 applied lo Canal and Dock Gates, <^c. 2-29 IS^il^i,. Q 8 230 Improved Methods of constructing Valves or Sluices, where it is in the line of the top rail of the gate, to which theworm-shaft bearings are secured. To work well, this arrangement will require good workman-ship in every respect; but, with the best possible execution, itwill be admitted to be vastly less costly than the crab and tunnelsystem. The bearings of the shaft of the hand-wheel (.r) are se-cured to the under side of the gangway, and the wheel risesthrough it to a convenient heijjht for a man to work it. The position of the opening chain may be such, that, when thegate is closed, it shall be the chord of the greatest arc which thegate describes: it will then be about in the best position pos-sible. The other chain, also, should be nearly in this same di-rection ; but its position should be such, that one gate may befully opened, while the other is closed, without the closing chainof the open gate interfering with that which is shut. The strainupon the gate framing canno
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Keywords: ., bookcentury1800, bookdecad, booksubjectarchitecture, bookyear1834
