. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. 144. TYPES OF COMPOUNDENGINES. Tandem compoundtypes in which the forward cylinderis high pressure with close connectionto the low-pressure-cylinder with onlya metallic sleeve as a stuffing box. 145. In the reverse type the cylin-ders are independent and separated asho
. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. 144. TYPES OF COMPOUNDENGINES. Tandem compoundtypes in which the forward cylinderis high pressure with close connectionto the low-pressure-cylinder with onlya metallic sleeve as a stuffing box. 145. In the reverse type the cylin-ders are independent and separated ashort distance with regular stuffingboxes. 146. TRIPLE EXPANSION ENGINE; with double tandemhigh-pressure cyhnder. Edwards patent. The object of the design is to produce an ar-. rangement of cylin-ders, steam valves,and ports whereby theback pressure of theintermediate cylinderwill not act as an op-posing force on thehigh-pressure piston,and will also furnishfull pressure of steamin the intermediatewithout increasing back pressure in the high. Steam enters the cham-ber a?^ passes through an opening between the two piston valves, whichopened to th: upper piston, a^ when it passed the bottom center. Thecut shows it in the act of closing. When working as a triple expansion the valve closes when the pistonreaches the point b^, which allows the steam to enter cylinder B abovepiston b at full pressure, but the crank to cyhnder A is on the quarterwhere it moves at its highest speed, while the piston B moves will also be seen that lower piston A reaches the top of its the same time, but instead of being in a position to exhaust as inthe upper one, it will be in the position to receive through lower port«,valve a> having moved down far enough t
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
