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 34
... distance for rotation also . The common double - eccentric gear - the Stephenson motion - has a " floating " link , with no fixed , unyield- ing point of resistance , and the pin by which it is suspended is not exactly in the centre of ...
... distance for rotation also . The common double - eccentric gear - the Stephenson motion - has a " floating " link , with no fixed , unyield- ing point of resistance , and the pin by which it is suspended is not exactly in the centre of ...
Сторінка 38
... distance from the point represented by the pin connecting the front end of the radius rod with the combination lever due to the curve of the link . If we should set the reverse lever in the centre notch of the quadrant and have the ...
... distance from the point represented by the pin connecting the front end of the radius rod with the combination lever due to the curve of the link . If we should set the reverse lever in the centre notch of the quadrant and have the ...
Сторінка 39
... ( distance between vertical lines through the upper two pin holes ) of the combi- nation lever will carry it ; this , as has been explained , is the distance necessary to overcome the amount of lap and then give the opening for lead , at ...
... ( distance between vertical lines through the upper two pin holes ) of the combi- nation lever will carry it ; this , as has been explained , is the distance necessary to overcome the amount of lap and then give the opening for lead , at ...
Сторінка 40
... distance as the throw of the eccentric , but— note the error : If this engine should be moved one - quarter turn ahead , placing the main - pin on the upper quarter , the lower end of the combination lever would then be at about the ...
... distance as the throw of the eccentric , but— note the error : If this engine should be moved one - quarter turn ahead , placing the main - pin on the upper quarter , the lower end of the combination lever would then be at about the ...
Сторінка 41
... distance from eccentric to valve , and this , on the backward stroke , increases the travel of the valve in that direction . So , if the full travel of the valve and the full throw of the eccentric are to be maintained as equal dis ...
... distance from eccentric to valve , and this , on the backward stroke , increases the travel of the valve in that direction . So , if the full travel of the valve and the full throw of the eccentric are to be maintained as equal dis ...
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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