The Walschaert and Other Modern Radial Valve Gears for Locomotives: A Practical Treatise on the Locomitive Valve Actuating Mechanism Invented by Egide Walschaerts, with the History of Its Development and Its Evolution Into the Mechanically Correct Locomotive Valve Gear of the Present Day ...Norman W. Henley publishing Company, 1913 - 245 стор. |
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Сторінка 25
... forward far enough so that the back - left port - is opened a very little- say , one - thirty - second ( 32 ) of an inch ; steam is thereby admitted against the piston at the prime starting point of its stroke - while the main - pin is ...
... forward far enough so that the back - left port - is opened a very little- say , one - thirty - second ( 32 ) of an inch ; steam is thereby admitted against the piston at the prime starting point of its stroke - while the main - pin is ...
Сторінка 26
... Forward FIG . 4. Simple Form of Steam Engine with Indirect Valve Motion . tween the eccentric and valve , so that as the eccentric moves in one direction the valve travels in the opposite one ; to make the engine still run forward the ...
... Forward FIG . 4. Simple Form of Steam Engine with Indirect Valve Motion . tween the eccentric and valve , so that as the eccentric moves in one direction the valve travels in the opposite one ; to make the engine still run forward the ...
Сторінка 27
... forward movement of the piston represented the first starting of the engine . These changes taken together have not changed the direction in which the engine will run . But notice : We had lengthened the return crank of the eccentric ...
... forward movement of the piston represented the first starting of the engine . These changes taken together have not changed the direction in which the engine will run . But notice : We had lengthened the return crank of the eccentric ...
Сторінка 28
... forward and backward gear . The engine is of direct valve motion when the reverse lever is in the go- ahead position , and of indirect motion when the lever in the back - up notch , the reasons for this becoming apparent as the method ...
... forward and backward gear . The engine is of direct valve motion when the reverse lever is in the go- ahead position , and of indirect motion when the lever in the back - up notch , the reasons for this becoming apparent as the method ...
Сторінка 29
... forward it will shorten the distance from eccentric to valve , or move it backward and the distance will be lengthened , and this shortening or lengthening of the line of motion will cause the valve to be displaced , G Eccentric Rud X ...
... forward it will shorten the distance from eccentric to valve , or move it backward and the distance will be lengthened , and this shortening or lengthening of the line of motion will cause the valve to be displaced , G Eccentric Rud X ...
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90 degrees actuated admission port ahead Air Brake American Locomotive Company angle axle back end backward Baldwin Locomotive bell crank bination lever block boiler combination lever compression valve crosshead link cut-off D-slide valve dead centre diagrams direction disconnected distance driving wheels eccentric crank eccentric rod Egide Walschaert equal equipped exact centre exactly exhaust forward full gear Hobart-Allfree hub centre inches inside admission valves lap and lead length link foot link fulcrum live steam lost motion lower end main crank-pin main rod main valve main-pin moved pin hole piston valve port opening position quadrant radius bar radius rod reach rod return crank reverse lever reverse shaft rocker rocker-arm schaert shortened side steam lap Stephenson link motion stroke tion transmission bar upper end valve events valve motion valve rod valve stem valve-stem valves of inside vertical Walschaert eccentric Walschaert gear Walschaert motion Walschaert valve gear yoke