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 26
... lower quarter " ; and as the main - pin moves up - forward , the backward motion of the eccentric will be reversed by the rocker - arms and the valve will , as required , still have a forward motion , admitting live steam to the back end ...
... lower quarter " ; and as the main - pin moves up - forward , the backward motion of the eccentric will be reversed by the rocker - arms and the valve will , as required , still have a forward motion , admitting live steam to the back end ...
Сторінка 28
... the valve , which is central on its seat with both admission ports covered ; but if we move the lower end of the combination lever forward it will shorten the distance from eccentric to valve 28 THE WALSCHAERT VALVE GEAR.
... the valve , which is central on its seat with both admission ports covered ; but if we move the lower end of the combination lever forward it will shorten the distance from eccentric to valve 28 THE WALSCHAERT VALVE GEAR.
Сторінка 29
... lower end . As it is the duty of the combination lever to modify the motion that the eccentric delivers to the valve , we must now connect the lower end of this lever to a source of power in such a manner that its " interference THE ...
... lower end . As it is the duty of the combination lever to modify the motion that the eccentric delivers to the valve , we must now connect the lower end of this lever to a source of power in such a manner that its " interference THE ...
Сторінка 30
... lower end of the combination lever ( still in a plumb perpendicular position ) with the cross - head by means of a short link - bar ; now draw the cross - head to the back end of the guides again , and re - connect the main rod to the ...
... lower end of the combination lever ( still in a plumb perpendicular position ) with the cross - head by means of a short link - bar ; now draw the cross - head to the back end of the guides again , and re - connect the main rod to the ...
Сторінка 31
... lower end of the combination lever is at the middle of its travel , and it would again stand plumb perpendicular but for the eccentric now being at its farthest point forward , and this has carried the valve to the finish of its forward ...
... lower end of the combination lever is at the middle of its travel , and it would again stand plumb perpendicular but for the eccentric now being at its farthest point forward , and this has carried the valve to the finish of its forward ...
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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