GB1131288A - Improvements in or relating to hydraulic rams - Google Patents

Improvements in or relating to hydraulic rams

Info

Publication number
GB1131288A
GB1131288A GB5489665A GB5489665A GB1131288A GB 1131288 A GB1131288 A GB 1131288A GB 5489665 A GB5489665 A GB 5489665A GB 5489665 A GB5489665 A GB 5489665A GB 1131288 A GB1131288 A GB 1131288A
Authority
GB
United Kingdom
Prior art keywords
piston
liquid
stop
cylinder
cylinder chamber
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
GB5489665A
Inventor
William Francis Tristram
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.)
BONSER ENGINEERING Ltd
Original Assignee
BONSER ENGINEERING Ltd
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 BONSER ENGINEERING Ltd filed Critical BONSER ENGINEERING Ltd
Priority to GB5489665A priority Critical patent/GB1131288A/en
Publication of GB1131288A publication Critical patent/GB1131288A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • F15B11/12—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action
    • F15B11/13—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action using separate dosing chambers of predetermined volume
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • F15B11/12—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action
    • F15B11/127—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action with step-by-step action
    • F15B11/128—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action with step-by-step action by means of actuators of the standard type with special circuit controlling means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B2013/0414—Dosing devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Reciprocating Pumps (AREA)

Abstract

1,131,288. Hydraulic systems. BONSER ENG. Ltd. March 23, 1967 [Dec. 28, 1965], No.54896/65. Heading F1P. A piston 27 is movable in steps along a cylinder 26 by supplying liquid to a cylinder chamber 33 to move the piston 27 into abutment with a stop piston 31 prevented from moving by liquid trapped in a cylinder chamber 35. The space 34 between the pistons 27, 31 is connected to atmosphere through a passage 36 in a piston rod 28. To re-position the stop piston 31 in preparation for the next movement step of the piston 27 and rod 28, a changeover valve 11 is reversed whereby a spring 32 disposed between the pistons 27, 31 reacts against the piston 27 and the liquid trapped in the cylinder chamber 33 by the valve 11 to move the stop piston 31 to the position shown where it engages an abutment 29 adjustably fixed to the rod 28, the liquid in the cylinder chamber 35 displayed by the stop piston 31 being exhausted through the valve 11. In an alternative arrangement Fig. 1 (not shown), the piston and cylinder is of conventional construction and the exhaust from one side of the piston is delivered to another cylinder (6) and presses a spring loaded piston against an adjustable stop (24) the thus trapped liquid preventing further movement.
GB5489665A 1965-12-28 1965-12-28 Improvements in or relating to hydraulic rams Expired GB1131288A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5489665A GB1131288A (en) 1965-12-28 1965-12-28 Improvements in or relating to hydraulic rams

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5489665A GB1131288A (en) 1965-12-28 1965-12-28 Improvements in or relating to hydraulic rams

Publications (1)

Publication Number Publication Date
GB1131288A true GB1131288A (en) 1968-10-23

Family

ID=10472388

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5489665A Expired GB1131288A (en) 1965-12-28 1965-12-28 Improvements in or relating to hydraulic rams

Country Status (1)

Country Link
GB (1) GB1131288A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2333984A1 (en) * 1975-09-25 1977-07-01 Righele Giovanni Controlling hydraulic motor rotation for filling machine - using oil discharge to fill chamber and pressure rise to control level and stop pump (BR 21.6.77)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2333984A1 (en) * 1975-09-25 1977-07-01 Righele Giovanni Controlling hydraulic motor rotation for filling machine - using oil discharge to fill chamber and pressure rise to control level and stop pump (BR 21.6.77)

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