GB437812A - Improvements in variable speed hydraulic power transmission gears - Google Patents

Improvements in variable speed hydraulic power transmission gears

Info

Publication number
GB437812A
GB437812A GB1323834A GB1323834A GB437812A GB 437812 A GB437812 A GB 437812A GB 1323834 A GB1323834 A GB 1323834A GB 1323834 A GB1323834 A GB 1323834A GB 437812 A GB437812 A GB 437812A
Authority
GB
United Kingdom
Prior art keywords
sections
valve
piston
byepass
spring
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
GB1323834A
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.)
FREDERICK LLEWELLYN SMITH
Original Assignee
FREDERICK LLEWELLYN SMITH
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 FREDERICK LLEWELLYN SMITH filed Critical FREDERICK LLEWELLYN SMITH
Priority to GB1323834A priority Critical patent/GB437812A/en
Publication of GB437812A publication Critical patent/GB437812A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/44—Control of exclusively fluid gearing hydrostatic with more than one pump or motor in operation
    • F16H61/444—Control of exclusively fluid gearing hydrostatic with more than one pump or motor in operation by changing the number of pump or motor units in operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Pumps (AREA)
  • Control Of Fluid Gearings (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

437,812. Hydraulic transmission of power. SMITH, F. L., and SMITH, R. J., 2, Alexandra Villas, Burton Road, Littleover, Derbyshire. May 2, 1934, No. 13238. [Class 69 (ii)] A variable - speed hydraulic transmission gear comprises a pump having sections in parallel, one or more of the sections having a byepass valve operated automatically through snap - over mechanism. Other sections have a manually controlled byepass valve. The pump may be of the type described in Specification 433,488, [Group XXVI], and comprise sections a, b, c, Fig. 6, the section a having a byepass valve i, and the sections b, c having a valve manually operable to byepass one or both of the sections. The valve i is controlled from a piston s by a rod o, and snap-over mechanism comprising a wedge r, Fig. 2, and a spring-loaded plunger u; the pump delivery pressure acts on the piston s in opposition to a spring v and the liquid pressure on a piston w. The pressure on the piston w is determined by adjusting a spring 24 and so controlling a valve 13 to admit or release liquid to act on the piston.
GB1323834A 1934-05-02 1934-05-02 Improvements in variable speed hydraulic power transmission gears Expired GB437812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1323834A GB437812A (en) 1934-05-02 1934-05-02 Improvements in variable speed hydraulic power transmission gears

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1323834A GB437812A (en) 1934-05-02 1934-05-02 Improvements in variable speed hydraulic power transmission gears

Publications (1)

Publication Number Publication Date
GB437812A true GB437812A (en) 1935-11-04

Family

ID=10019337

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1323834A Expired GB437812A (en) 1934-05-02 1934-05-02 Improvements in variable speed hydraulic power transmission gears

Country Status (1)

Country Link
GB (1) GB437812A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499286A (en) * 1968-10-15 1970-03-10 Bucyrus Erie Co Controllable hydraulic power unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499286A (en) * 1968-10-15 1970-03-10 Bucyrus Erie Co Controllable hydraulic power unit

Similar Documents

Publication Publication Date Title
GB437812A (en) Improvements in variable speed hydraulic power transmission gears
GB468122A (en) Improvements in or relating to reciprocating pumps
GB238886A (en) Improvements in or relating to pumps
GB450347A (en) Improvements in or relating to reciprocating pump control mechanism
GB478223A (en) Improvements in or relating to change speed mechanisms
GB478006A (en) Improvements in and relating to hydraulic clutch and power transmission devices
GB438616A (en) Improvements in or relating to hydraulic transmission gear
GB221190A (en) Improvements in hydraulic couplings and change speed gears
GB450763A (en) Improvements in means for the hydraulic transmission of power
GB414979A (en) Improvements in or relating to hydraulic couplings
GB424855A (en) Improvements in and relating to variable speed gearing
GB408584A (en) Improvements relating to hydraulic variable speed clutches
GB241039A (en) Improvements in variable power transmission mechanism
GB228536A (en) Improvements in hydraulic change-speed devices
GB505182A (en) Pressure release device for hydraulic variable speed gears
GB605902A (en) Improvements in and relating to gear pumps for reversible hydraulic motors and the like
GB418013A (en) Improvements relating to hydraulically operated reciprocatory mechanism
GB271568A (en) Improvements in or relating to variable speed power transmission gear
GB452165A (en) Improvements relating to hydraulically operated machine tools
GB405084A (en) Improvements in or relating to hydraulically controlled machine tools
GB454149A (en) Improvements in and relating to the control of change speed gears
GB364357A (en) Improvements relating to fluid operated metal cutting and like machine tools
GB252418A (en) Improvements in and relating to hydraulic and other fluid-pressure mechanism for thetransmission of power
GB430562A (en) Hydraulic clutch
GB303215A (en) Improvements in or relating to pressure liquid motors