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 31
... quarter - turn of the wheel . It must be remembered that the valve is acted upon by two distinct forces : the main pro- pulsion , for its long travel , but this motion is qualified by the influence of the cross - head , exerted through ...
... quarter - turn of the wheel . It must be remembered that the valve is acted upon by two distinct forces : the main pro- pulsion , for its long travel , but this motion is qualified by the influence of the cross - head , exerted through ...
Сторінка 32
... quarter and the eccentric is at its farthest point on the back stroke , the upper end of the combination lever still inclines backward and has drawn the valve to the finish of its backward stroke , with the front port opened for full ...
... quarter and the eccentric is at its farthest point on the back stroke , the upper end of the combination lever still inclines backward and has drawn the valve to the finish of its backward stroke , with the front port opened for full ...
Сторінка 40
... quarter turn ahead , placing the main - pin on the upper quarter , the lower end of the combination lever would then be at about the middle of its path of motion , but the eccen- tric being at its farthest stroke ahead , the upper end ...
... quarter turn ahead , placing the main - pin on the upper quarter , the lower end of the combination lever would then be at about the middle of its path of motion , but the eccen- tric being at its farthest stroke ahead , the upper end ...
Сторінка 41
... quarter there is a great and undesirable angle between the eccentric rod and the line of the valve - stem ; horizontal lines through the centres of the main axle and the pin connecting the eccentric rod to the link are too widely apart ...
... quarter there is a great and undesirable angle between the eccentric rod and the line of the valve - stem ; horizontal lines through the centres of the main axle and the pin connecting the eccentric rod to the link are too widely apart ...
Сторінка 49
... quarter behind the main - pin instead of ahead of it as is usual with outside admission valves ; but he reverses the effects of that change by carrying the link - block at the top end of the link when the engine is to run forward . The ...
... quarter behind the main - pin instead of ahead of it as is usual with outside admission valves ; but he reverses the effects of that change by carrying the link - block at the top end of the link when the engine is to run forward . 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 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