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 90
... backward motion without requiring the centre en- largement of the link . It must be borne in mind . that the raising or lowering of the eccentric rod by the reverse shaft was equivalent to a slight change in the angular advance of the ...
... backward motion without requiring the centre en- largement of the link . It must be borne in mind . that the raising or lowering of the eccentric rod by the reverse shaft was equivalent to a slight change in the angular advance of the ...
Сторінка 100
... backward motions , correcting any errors by lengthening or shortening the eccentric rod as previously noted . The valves may now be considered as definitely set , and may be tested to any cut - off points in the usual manner . A simple ...
... backward motions , correcting any errors by lengthening or shortening the eccentric rod as previously noted . The valves may now be considered as definitely set , and may be tested to any cut - off points in the usual manner . A simple ...
Сторінка 111
... backward position without imparting any motion to the valve . It may be noted that the link position may be observed by the usual tram marks on the valve - stem , or direct by marks on the link pin , as may be found most convenient with ...
... backward position without imparting any motion to the valve . It may be noted that the link position may be observed by the usual tram marks on the valve - stem , or direct by marks on the link pin , as may be found most convenient with ...
Сторінка 161
... backward , and in such case it is only necessary , for further change , to move the position of the eccentric 180 degrees - from a quarter ahead to a quarter behind the main pin , or vice versa . Q. 27. Is it easier to secure equal cut ...
... backward , and in such case it is only necessary , for further change , to move the position of the eccentric 180 degrees - from a quarter ahead to a quarter behind the main pin , or vice versa . Q. 27. Is it easier to secure equal cut ...
Сторінка 168
... backward by the rise of the link - block the eccentric rod needs to be shortened . In either case make but slight changes in the length of the rod , and keep on testing until hooking up the lever to the centre has no effect on the valve ...
... backward by the rise of the link - block the eccentric rod needs to be shortened . In either case make but slight changes in the length of the rod , and keep on testing until hooking up the lever to the centre has no effect on the valve ...
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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