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 30
... holes in the upper part of the combination lever must - as the engine stands in Fig . 5 - be just one and one - thirty- second ( 132 ) inches , equalling lap plus lead . As the engine starts forward under her own steam we will note the ...
... holes in the upper part of the combination lever must - as the engine stands in Fig . 5 - be just one and one - thirty- second ( 132 ) inches , equalling lap plus lead . As the engine starts forward under her own steam we will note the ...
Сторінка 39
... 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 each end of the stroke . This method of reversing the ...
... 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 each end of the stroke . This method of reversing the ...
Сторінка 43
... holes at its upper end would be vertically even , and the centre lines through valve and seat would coincide , the valve being central on its seat and the lead eliminated . With an engine standing as in Fig . 7 , the propor- tions of ...
... holes at its upper end would be vertically even , and the centre lines through valve and seat would coincide , the valve being central on its seat and the lead eliminated . With an engine standing as in Fig . 7 , the propor- tions of ...
Сторінка 45
... hole , 4a and 4b , to receive the pin that connects the eccentric rod with the link , and this hole is fitted with a wrought iron bushing that is case - hardened . The reduction of the diameter of these pins and pin holes from wear is ...
... hole , 4a and 4b , to receive the pin that connects the eccentric rod with the link , and this hole is fitted with a wrought iron bushing that is case - hardened . The reduction of the diameter of these pins and pin holes from wear is ...
Сторінка 46
... hole 4a there is an oil well finished in the top of the link foot , 1 inches in diameter by 13 inches deep , with a 1 - inch hole drilled down from the bottom and through the bushing of the eccentric rod pin hole for the feed of the oil ...
... hole 4a there is an oil well finished in the top of the link foot , 1 inches in diameter by 13 inches deep , with a 1 - inch hole drilled down from the bottom and through the bushing of the eccentric rod pin hole for the feed of the oil ...
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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