GB174667A - Improvements in or relating to valve gears for reciprocating steam engines - Google Patents

Improvements in or relating to valve gears for reciprocating steam engines

Info

Publication number
GB174667A
GB174667A GB2499120A GB2499120A GB174667A GB 174667 A GB174667 A GB 174667A GB 2499120 A GB2499120 A GB 2499120A GB 2499120 A GB2499120 A GB 2499120A GB 174667 A GB174667 A GB 174667A
Authority
GB
United Kingdom
Prior art keywords
valve
cranks
links
link
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2499120A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DONALD ASH
Original Assignee
DONALD ASH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DONALD ASH filed Critical DONALD ASH
Priority to GB2499120A priority Critical patent/GB174667A/en
Publication of GB174667A publication Critical patent/GB174667A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L29/00—Reversing-gear
    • F01L29/04—Reversing-gear by links or guide rods

Abstract

174,667. Duggan, W. G., and Ash, D. Aug. 30, 1920. Link-motions and linkage, gears. - In locomotive and other steam engines having two cranks at 90‹, or three cranks at 120‹, the lap and lead motion and travel of each valve are obtained from levers operated by links connected to two cross heads. In the two-cylinder construction, Fig. 1, lap and lead motion is imparted to the valve rod v<1> by the cross head c<1> through a compensating- lever a<1>, connected thereto by links e<1>, b<1>, and the lever l<1>, which also oscillates a shaft s<1> to effect the travel of the valve in the adjacent cylinder. The travel of the valve is imparted to the valve v<1> by a rod r<1> connected by a link f<1> to a crank u<1> on a shaft s<2> oscillated by the cross head of the adjacent cylinder. The rods r<1>, f<1> are connected by a link d<1> to a lever d<2> on a reversing- shaft w. In the three-cylinder construction, the valve of each cylinder is operated by a slotted link, the two ends of which are reciprocated by the cross heads of the other two cylinders respectively for forward and reverse gear. The radiusrods are of equal length and are operated by cranks on a countershaft connected to one cross head through links and levers directly, and to the other cross heads through the intermediary of secondary countershafts, cranks, and links.
GB2499120A 1920-08-30 1920-08-30 Improvements in or relating to valve gears for reciprocating steam engines Expired GB174667A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2499120A GB174667A (en) 1920-08-30 1920-08-30 Improvements in or relating to valve gears for reciprocating steam engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2499120A GB174667A (en) 1920-08-30 1920-08-30 Improvements in or relating to valve gears for reciprocating steam engines

Publications (1)

Publication Number Publication Date
GB174667A true GB174667A (en) 1922-01-30

Family

ID=10220450

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2499120A Expired GB174667A (en) 1920-08-30 1920-08-30 Improvements in or relating to valve gears for reciprocating steam engines

Country Status (1)

Country Link
GB (1) GB174667A (en)

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