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GB1396356A - Pneumatic actuator - Google Patents

Pneumatic actuator

Info

Publication number
GB1396356A
GB1396356A GB4161872A GB4161872A GB1396356A GB 1396356 A GB1396356 A GB 1396356A GB 4161872 A GB4161872 A GB 4161872A GB 4161872 A GB4161872 A GB 4161872A GB 1396356 A GB1396356 A GB 1396356A
Authority
GB
United Kingdom
Prior art keywords
rack
piston
connector
pistons
movement
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
GB4161872A
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.)
Monotype Corp Ltd
Original Assignee
Monotype Corp 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 Monotype Corp Ltd filed Critical Monotype Corp Ltd
Priority to GB4161872A priority Critical patent/GB1396356A/en
Priority to IN1884/CAL/73A priority patent/IN140028B/en
Priority to US392997A priority patent/US3898912A/en
Priority to DE19732344426 priority patent/DE2344426A1/en
Priority to IT52336/73A priority patent/IT994194B/en
Publication of GB1396356A publication Critical patent/GB1396356A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41B—MACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRIC COMPOSING DEVICES
    • B41B17/00—Photographic composing machines having fixed or movable character carriers and without means for composing lines prior to photography
    • B41B17/04—Photographic composing machines having fixed or movable character carriers and without means for composing lines prior to photography with a carrier for all characters in at least one fount
    • B41B17/06—Photographic composing machines having fixed or movable character carriers and without means for composing lines prior to photography with a carrier for all characters in at least one fount with an adjustable carrier
    • 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
    • F15B11/121—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions
    • F15B11/125—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions by means of digital actuators, i.e. actuators in which the total stroke is the sum of individual strokes
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/26—Locking mechanisms
    • F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2807—Position switches, i.e. means for sensing of discrete positions only, e.g. limit switches

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)
  • Actuator (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

1396356 Pneumatic actuators MONOTYPE CORP Ltd 15 Aug 1973 [7 Sept 1972] 41618/72 Heading F1D [Also in Division B6] A pneumatic actuator, Fig. 2, in which a plurality of pistons, such as 3a, 3b, are selectively operable to provide a series of discrete positions for a connector 13 with respect to a datum, has a rack 17 attached to the connector 13 and a plunger 20 which engages teeth on the rack to lock the connector in the selected position. Movement of each piston is limited by a pin 9 attached thereto which moves in a slot 8, Fig. 3, in a portion 6 of the adjacent piston. Air is admitted to the clyinder 3 by selected valves 10 which are solenoid operated, Fig. 4 (not shown). The direction of movement of the rack 17 and its position are sensed by a counter 36, a computer and a pair of light sources which co-operate with a pair of photo-cells. When the approximate position has been reached by the rack 17, the air supply to a piston 21 is cut-off so that the piston is urged downwards by a spring 23 and the plunger 20 engages the rack. Air is continuously supplied to the right hand side of the piston 3b so that when all the valves 10 are closed all the pistons are moved to the left. Movement of the rack is damped by a dashpot 14, Fig. 1 (not shown). The strokes of successive pistons are arranged according to a binary power series. The actuator may be used for moving matrix cases in photographic type-composing machines.
GB4161872A 1972-09-07 1972-09-07 Pneumatic actuator Expired GB1396356A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB4161872A GB1396356A (en) 1972-09-07 1972-09-07 Pneumatic actuator
IN1884/CAL/73A IN140028B (en) 1972-09-07 1973-08-14
US392997A US3898912A (en) 1972-09-07 1973-08-30 Pneumatic actuators
DE19732344426 DE2344426A1 (en) 1972-09-07 1973-09-04 PNEUMATIC DRIVE
IT52336/73A IT994194B (en) 1972-09-07 1973-09-04 IMPROVEMENT IN PNEUMATIC ACTUATORS SUITABLE IN PARTICULAR FOR COMPOSITION MACHINES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4161872A GB1396356A (en) 1972-09-07 1972-09-07 Pneumatic actuator

Publications (1)

Publication Number Publication Date
GB1396356A true GB1396356A (en) 1975-06-04

Family

ID=10420523

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4161872A Expired GB1396356A (en) 1972-09-07 1972-09-07 Pneumatic actuator

Country Status (5)

Country Link
US (1) US3898912A (en)
DE (1) DE2344426A1 (en)
GB (1) GB1396356A (en)
IN (1) IN140028B (en)
IT (1) IT994194B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375780A (en) * 1980-01-28 1983-03-08 General Electric Company Fail-fixed electrohydraulic servosystem
DE3535704A1 (en) * 1985-10-05 1987-04-09 Festo Kg PISTON CYLINDER ARRANGEMENT
DE3632355A1 (en) * 1986-09-24 1988-04-07 Duerkoppwerke Pressure-medium-actuated multi-position cylinder
US9933085B2 (en) 2014-12-29 2018-04-03 Hamilton Sundstrand Corporation Integrating valve with soft start

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543522A (en) * 1945-06-08 1951-02-27 Samuel J Cohen Apparatus for proportioning liquids
US2931340A (en) * 1955-05-11 1960-04-05 Electraulic Presses Control mechanism for hydraulic presses
US2932282A (en) * 1957-07-08 1960-04-12 Roe L Mckinley Fluid actuated systems for operating and locking control elements
IT572665A (en) * 1957-07-26
US3162365A (en) * 1961-03-01 1964-12-22 Gizeski Terrence Digital control system
US3220250A (en) * 1961-09-18 1965-11-30 Trelleborgs Gummifabriks Ab Apparatus for testing rubber
GB1131854A (en) * 1965-06-18 1968-10-30 Elliott Brothers London Ltd Improvements in and relating to the monitoring of control systems
US3510759A (en) * 1966-07-18 1970-05-05 Northern Electric Co Method and apparatus for gauging and adjusting multiple contact relays

Also Published As

Publication number Publication date
IT994194B (en) 1975-10-20
IN140028B (en) 1976-09-04
US3898912A (en) 1975-08-12
DE2344426A1 (en) 1974-03-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee