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 11
... them a tonnage to be started and stopped twice in every revolution of the driving wheels that should have prohibited the use of such heavy reciprocating parts before now . For this and other reasons , our locomotive build- ers.
... them a tonnage to be started and stopped twice in every revolution of the driving wheels that should have prohibited the use of such heavy reciprocating parts before now . For this and other reasons , our locomotive build- ers.
Сторінка 16
... wheels go ' round . With all of the common types of valve there are but two ports to the cylinder - one to each end - and while the valve is admitting live steam to the cylinder through one of these ports , it is discharging the ex ...
... wheels go ' round . With all of the common types of valve there are but two ports to the cylinder - one to each end - and while the valve is admitting live steam to the cylinder through one of these ports , it is discharging the ex ...
Сторінка 21
... wheel's circle , or 90 degrees , ahead of the crank - pin - assuming the engine to be running forward - to the right . But before going further it is best to explain how to take the expression , in hearing it said that an eccentric is ...
... wheel's circle , or 90 degrees , ahead of the crank - pin - assuming the engine to be running forward - to the right . But before going further it is best to explain how to take the expression , in hearing it said that an eccentric is ...
Сторінка 22
... wheel revolved to the right eccentric B would follow in the same direction and one - fourth of a turn behind the main - pin , and be said to be " a quarter behind the main pin , ” which it always is with indirect motion and outside ...
... wheel revolved to the right eccentric B would follow in the same direction and one - fourth of a turn behind the main - pin , and be said to be " a quarter behind the main pin , ” which it always is with indirect motion and outside ...
Сторінка 23
... wheel backward , the eccentric would pull the valve backward also , and steam would be admitted to the forward end of the cylinder , pushing the piston back in spite of our efforts , and it would hold the main - pin on the back dead ...
... wheel backward , the eccentric would pull the valve backward also , and steam would be admitted to the forward end of the cylinder , pushing the piston back in spite of our efforts , and it would hold the main - pin on the back dead ...
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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