Valves and Valve-gearing: A Practical Text-book for the Use of Engineers, Draughtsmen, and Students |
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Page 2
... vertical engines the lead on the top side of the cylinder is less than on the bottom , for two reasons . Firstly , because gravity is against the piston , piston - rod , crosshead , and connecting- rod on the up - stroke ; and secondly ...
... vertical engines the lead on the top side of the cylinder is less than on the bottom , for two reasons . Firstly , because gravity is against the piston , piston - rod , crosshead , and connecting- rod on the up - stroke ; and secondly ...
Page 8
... vertical engines , it is the practice to give more compression on the under side of the piston , in order to counteract gravity . A compression at 82 per cent . on the bottom side is not uncommon in such cases . be Application of the ...
... vertical engines , it is the practice to give more compression on the under side of the piston , in order to counteract gravity . A compression at 82 per cent . on the bottom side is not uncommon in such cases . be Application of the ...
Page 13
... erect a perpendicular a 1. a ' is the corresponding eccentric position , and D will be the valve position . Project D 1 horizontally , meeting the vertical a 1 at 1. The ELLIPSE DIAGRAM . 13 Area of Ports, Ellipse Diagram,
... erect a perpendicular a 1. a ' is the corresponding eccentric position , and D will be the valve position . Project D 1 horizontally , meeting the vertical a 1 at 1. The ELLIPSE DIAGRAM . 13 Area of Ports, Ellipse Diagram,
Page 14
... vertical a 1 at 1. The first point in the curve has now been obtained . Repeat the process for each position , and draw a fair curve through all the points thus found . curve is called the valve ellipse . Draw EF parallel to a G , and ...
... vertical a 1 at 1. The first point in the curve has now been obtained . Repeat the process for each position , and draw a fair curve through all the points thus found . curve is called the valve ellipse . Draw EF parallel to a G , and ...
Page 16
... vertical engine . spindle is prolonged to carry a balance piston at the top of the steam chest . The chipping strips at the entrance of the valve ports not only facilitate the finishing up to the exact sizes , but give an increased area ...
... vertical engine . spindle is prolonged to carry a balance piston at the top of the steam chest . The chipping strips at the entrance of the valve ports not only facilitate the finishing up to the exact sizes , but give an increased area ...
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Common terms and phrases
action arrangement Boilers Bremme's BRYAN DONKIN central position centre line CHARLES GRIFFIN clearance compression construction Corliss gear Corliss valve crank pin crank position Crown 8vo curve cylinder dashpot dead centre describe diameter distance double-eccentric double-ported draw dwelling angle eccentric-rod Electrical engagement equal EXETER STREET exhaust valves expansion eccentric expansion gear expansion valve extreme position Handsome Cloth horizontal inside lap intersection lap circle Large 8vo lead link BC link motion LONDON main valve Manual Marine Engineering Master Mariner Metallurgy Mining move movement negative lap pin holes piston plate point of cut-off port opening PRACTICAL PROF radius range of trip release resultant circle Revised single eccentric gears slide valve slot steam and exhaust steam valves steel catch STRAND stroke stuffing box TEXT-BOOK trip gear trip hook trip lever trip motion valve circle Valve Diagram valve gear valve lever valve spindle valve-rod vertical width wrist wrist-plate pins wrist-plate rod
Popular passages
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