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, 1912 - 245 стор. |
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Сторінка 25
... engine standing as in Fig . 2 , with the exception , only , that we have given it lead . Lead is not expected to help move an engine past the dead centre ; it has somewhat the opposite effect— that of cramping , from the main - pin to ...
... engine standing as in Fig . 2 , with the exception , only , that we have given it lead . Lead is not expected to help move an engine past the dead centre ; it has somewhat the opposite effect— that of cramping , from the main - pin to ...
Сторінка 26
... engine illustrated in Fig . 2 , and interposed the double rocker - arms be- Indirect Valve Motion Engine Runs Forward FIG . 4. Simple Form of Steam Engine with Indirect Valve Motion . tween the eccentric and valve , so that as the ...
... engine illustrated in Fig . 2 , and interposed the double rocker - arms be- Indirect Valve Motion Engine Runs Forward FIG . 4. Simple Form of Steam Engine with Indirect Valve Motion . tween the eccentric and valve , so that as the ...
Сторінка 27
... 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 , placing it more than 90 degrees from the main - pin , in order to ...
... 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 , placing it more than 90 degrees from the main - pin , in order to ...
Сторінка 28
... 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 for reversing the gear is under ...
... 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 for reversing the gear is under ...
Сторінка 30
... engine far enough to be represented by the sketch in Fig . 5 ; the angle assumed by the combination lever has pushed ... engine stands in Fig . 5 - be just one and one - thirty- second ( 1 ) inches , equalling lap plus lead . As the ...
... engine far enough to be represented by the sketch in Fig . 5 ; the angle assumed by the combination lever has pushed ... engine stands in Fig . 5 - be just one and one - thirty- second ( 1 ) inches , equalling lap plus lead . As the ...
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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 eccentric to valve Egide Walschaert equal equipped exact centre exactly exhaust forward full gear hub centre inches inside admission valves length link foot link fulcrum live steam lost motion lower end main crank-pin main rod main-pin main-valve moved pin hole piston valve port opening position quadrant radius bar radius rod return crank reverse lever reverse shaft rocker rocker-arm schaert shortened side steam chest steam lap Stephenson link motion stroke tion transmission bar trunnion 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