GB560659A - Improved means for locking fluid pressure actuated jacks - Google Patents

Improved means for locking fluid pressure actuated jacks

Info

Publication number
GB560659A
GB560659A GB14052/41A GB1405241A GB560659A GB 560659 A GB560659 A GB 560659A GB 14052/41 A GB14052/41 A GB 14052/41A GB 1405241 A GB1405241 A GB 1405241A GB 560659 A GB560659 A GB 560659A
Authority
GB
United Kingdom
Prior art keywords
piston
spindle
valve
fluid pressure
servomotor
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
GB14052/41A
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.)
MACLAREN UNDERCARRIAGE Co
Original Assignee
MACLAREN UNDERCARRIAGE Co
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 MACLAREN UNDERCARRIAGE Co filed Critical MACLAREN UNDERCARRIAGE Co
Priority to GB14052/41A priority Critical patent/GB560659A/en
Publication of GB560659A publication Critical patent/GB560659A/en
Priority claimed from US609273A external-priority patent/US2932855A/en
Priority to GB28527/57A priority patent/GB869140A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface 
    • B64C25/50—Steerable undercarriages; Shimmy-damping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B29C48/307—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets specially adapted for bringing together components, e.g. melts within the die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Transmission Devices (AREA)
  • Actuator (AREA)

Abstract

560,659. Fluid pressure servomotors. MACLAREN UNDERCARRIAGE CO., Ltd., and MACLAREN, O. F. Oct. 31, 1941, No. 14052. [Class 135]. An aircraft steerable landing element mounting operated by a fluid pressure servomotor, is provided with an irreversible gear coupling the relatively movable parts of theservomotor to lock mechanically the servomotor in its adjusted position. In the form shown in the Figures the power cylinder 19 is carried by brackets 20 carried by a non-rotatable leg part of the landing gear and houses a piston 16 with oppositely extending skirt portions 17, 18. A gudgeon pin 15 mounted in the piston passes through slots 22 in the piston and engages slots in arms in brackets formed on a member pivoted to the fixed leg and carrying a spindle on which the landing element is mounted. The skirt 17 carries a ported plug 24 threaded to engage a threaded spindle 25 having a collar 28 rotatably mounted with axial list motion in a recess 27. A worm wheel splined to the collar is adapted to be rotated by a worm 30 operable by a cable from a remote point. The servomotor control valve 33 has a piston valve with bands 34, 35 adapted to connect alternately the passages 36, 37 leading to the power cylinder with an exhaust passage 42 or with end chambers 40, 41 connected by a passage 39 to a motive fluid supply conduit 38. A clevis 43 on the valve spindle is connected by a lever with the end of the screwed spindle. Initial rotation of the screwed spindle, takes up the lost-motion in the recess and actuates the control valve to cause the piston to. move in the appropriate direction and; continues to, move until the control. valve is centralized. In the event of the pressure supply failing the screw may be rotated to move the piston through its full stroke. In a modification the piston is provided with a tubular piston rod passing through a stuffing box at one end of the cylinder. The power cylinders may be made single-acting. A single control valve may be arranged to control a series of power cylinders so that they operate synchronously or with a predetermined inequality of movement.
GB14052/41A 1941-10-31 1941-10-31 Improved means for locking fluid pressure actuated jacks Expired GB560659A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB14052/41A GB560659A (en) 1941-10-31 1941-10-31 Improved means for locking fluid pressure actuated jacks
GB28527/57A GB869140A (en) 1941-10-31 1957-09-10 An improved method and apparatus for forming film or sheeting

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB14052/41A GB560659A (en) 1941-10-31 1941-10-31 Improved means for locking fluid pressure actuated jacks
US869140XA 1956-09-11 1956-09-11
US1210645XA 1956-09-11 1956-09-11
US609273A US2932855A (en) 1956-09-11 1956-09-11 Method for forming film or sheeting

Publications (1)

Publication Number Publication Date
GB560659A true GB560659A (en) 1944-04-14

Family

ID=27448232

Family Applications (2)

Application Number Title Priority Date Filing Date
GB14052/41A Expired GB560659A (en) 1941-10-31 1941-10-31 Improved means for locking fluid pressure actuated jacks
GB28527/57A Expired GB869140A (en) 1941-10-31 1957-09-10 An improved method and apparatus for forming film or sheeting

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB28527/57A Expired GB869140A (en) 1941-10-31 1957-09-10 An improved method and apparatus for forming film or sheeting

Country Status (1)

Country Link
GB (2) GB560659A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102207115A (en) * 2011-03-24 2011-10-05 大连万讯电力仪表有限公司 Travel-adjustable forced grease lubrication straight-travel cylinder
EP2769914A3 (en) * 2013-02-22 2017-12-06 Goodrich Corporation Main landing gear compact axle steering

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102207115A (en) * 2011-03-24 2011-10-05 大连万讯电力仪表有限公司 Travel-adjustable forced grease lubrication straight-travel cylinder
CN102207115B (en) * 2011-03-24 2013-06-19 大连万讯电力仪表有限公司 Travel-adjustable forced grease lubrication straight-travel cylinder
EP2769914A3 (en) * 2013-02-22 2017-12-06 Goodrich Corporation Main landing gear compact axle steering

Also Published As

Publication number Publication date
GB869140A (en) 1961-05-31

Similar Documents

Publication Publication Date Title
US2389654A (en) Hydraulic motor unit
US2349244A (en) Actuating cylinder
GB493416A (en) Improvements in operating devices for propellers, turbine wheels, and pump wheels, having screw blades adjustable for pitch
US3683749A (en) Hydraulic control means
US3133476A (en) Rotary actuators
GB560659A (en) Improved means for locking fluid pressure actuated jacks
US2497489A (en) Hydraulic strut
GB1248914A (en) Improvements in or relating to boosted hydraulic systems
GB608704A (en) Improvements in or relating to fluid-pressure operated jacks
US3093158A (en) Detent mechanism for hydraulic control valve
US1679762A (en) Poppet-valve mechanism for power actuators and the like
GB1189885A (en) Fluid Pressure Operated Actuators
US3263754A (en) Pressure fluid actuator system
US3342111A (en) Fluid pressure actuator and locking means
US3217609A (en) Fluid pressure actuator and locking means
US2717745A (en) Airplane wheel brake system
US2283810A (en) Control valve
GB965393A (en) Improvements in or relating to fluid pressure actuators for producing rotary motion
GB1467932A (en) Position-responsive hydraulic cylinder
US2554614A (en) Servo ram of the follow-up type
US3226061A (en) Steerable undercarriage assemblies
US2801616A (en) Multiple position actuator
US2451335A (en) Control valve means for power-operated hydraulic motive means
GB557994A (en) Improvements in liquid servo-motors
US2339049A (en) Control device