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 26
... position of the eccentric is changed to a directly opposite point on the wheel - right straight across , through the centre of the hub , to the " lower quarter " ; and as the main - pin moves up - forward , the backward motion of the ...
... position of the eccentric is changed to a directly opposite point on the wheel - right straight across , through the centre of the hub , to the " lower quarter " ; and as the main - pin moves up - forward , the backward motion of the ...
Сторінка 27
... position of that eccentric on the main - shaft or its relation toward the main crank - pin , unless the engine is to run in but one constant direction ; if there is to be any method of reversion , the lead must be gotten otherwise . The ...
... position of that eccentric on the main - shaft or its relation toward the main crank - pin , unless the engine is to run in but one constant direction ; if there is to be any method of reversion , the lead must be gotten otherwise . The ...
Сторінка 28
... 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- stood . Now , let's revert our attention to the crude type of engine shown ...
... 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- stood . Now , let's revert our attention to the crude type of engine shown ...
Сторінка 30
... 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 main - pin ; we have now developed the engine far enough to be ...
... 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 main - pin ; we have now developed the engine far enough to be ...
Сторінка 31
... position of the lever as shown in Fig . 5 , with the result that the distance from eccentric to valve will be shortened by that angle , and the valve . drawn back exactly one and one - thirty - second ( 132 ) inches ( we are assuming ...
... position of the lever as shown in Fig . 5 , with the result that the distance from eccentric to valve will be shortened by that angle , and the valve . drawn back exactly one and one - thirty - second ( 132 ) inches ( we are assuming ...
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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