GB2190171A - Adjustable cylinder stroke - Google Patents

Adjustable cylinder stroke Download PDF

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Publication number
GB2190171A
GB2190171A GB08611278A GB8611278A GB2190171A GB 2190171 A GB2190171 A GB 2190171A GB 08611278 A GB08611278 A GB 08611278A GB 8611278 A GB8611278 A GB 8611278A GB 2190171 A GB2190171 A GB 2190171A
Authority
GB
United Kingdom
Prior art keywords
piston rod
stroke
piston
outside
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.)
Withdrawn
Application number
GB08611278A
Other versions
GB8611278D0 (en
Inventor
Apoloniusz Edward Warzynski
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB08611278A priority Critical patent/GB2190171A/en
Publication of GB8611278D0 publication Critical patent/GB8611278D0/en
Publication of GB2190171A publication Critical patent/GB2190171A/en
Withdrawn legal-status Critical Current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
    • 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
    • F15B15/24—Other details, e.g. assembly with regulating devices for restricting the stroke

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)

Abstract

A tubular cylinder 14 has outside hollow piston rod 12 and within it a second piston 10 connected together by means of screw thread. By removing plug 15 and use of spanner (16, Fig. 3), second piston rod 10 can be screwed in or out of outside piston rod 12 to obtain a desired stroke. <IMAGE>

Description

SPECIFICATION Infinitely adjustable cylinder stroke This invention relates to a Pneumatic or Hydraulic Cylinders.
Pneumatic or Hydraulic Cylinders are well known components which comprise of a tubular cylinder end caps, piston and piston rod and are used to apply power and movement .n various machines and control of components in industry.
However it is often desired to be able to adjust the stroke to match site conditions or movement of equipment such as valves. This has always been an expensive exercise.
According to the present invention there is a second piston rod within the outside piston rod connected to each other by means of screw thread, this enables one rod to be moved within the other, thus positioning anywhere along the cylinder.
A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawings 1/3, 2/3 and 3/3: Sheet 1/3 shows cylinder and piston movement of full stroke without any adjustment.
Sheet 2/3 illustrates second piston rod screwed partly out of outside piston rod reducing total stroke.
Sheet 3/3 shows movement of piston and both piston rods within new stroke restricted by piston and outside piston rod flange.
Referring to sheet 2/3 showing cylinder 14, the plug 15 removed, piston 19 can now be positioned as sheet 3/3, spanner 16 engaged with piston rod 10 and after restricting rotation of piston rod 12 the spanner 16 can be turned clockwise or anti-clockwise to screw in or out piston rod 10 to give desired stroke of outside piston 12, when this is achieved, remove spanner 16 and replace plug 15.
The new stroke of piston rod 12 will be now limited by the movement of piston 19 and the flange of outside piston rod 12.
1. Infinitely adjustable cylinder stroke comprising of second piston rod within the outside piston rod with range, connected to each other by means of screw thread and capable of movement within each other, and being adjusted.
2. Infinitely adjustable cylinder stroke as claimed in Claim 1 wherein outside piston rod is hollow with screw thread.
3. Infinitely adjustable cylinder stroke as claimed in Claim 1 or Claim 2 wherein outside piston rod have flange restricting movement.
4. Infinitely adjustable cylinder stroke as claimed in Claim 1 or Claim 2 wherein second piston rod within outside rod is screw threaded along the length.
5. Infinitely adjustable cylinder stroke as claimed in Claim 1 wherein access is provided by means of a plug to adjust piston rod.
6. Infinitely adjustable cylinder stroke substantially as described herein with reference to sheet 1/3, 2/3, and 3/3 accompanying drawings herewith.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (6)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Infinitely adjustable cylinder stroke This invention relates to a Pneumatic or Hydraulic Cylinders. Pneumatic or Hydraulic Cylinders are well known components which comprise of a tubular cylinder end caps, piston and piston rod and are used to apply power and movement .n various machines and control of components in industry. However it is often desired to be able to adjust the stroke to match site conditions or movement of equipment such as valves. This has always been an expensive exercise. According to the present invention there is a second piston rod within the outside piston rod connected to each other by means of screw thread, this enables one rod to be moved within the other, thus positioning anywhere along the cylinder. A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawings 1/3, 2/3 and 3/3: Sheet 1/3 shows cylinder and piston movement of full stroke without any adjustment. Sheet 2/3 illustrates second piston rod screwed partly out of outside piston rod reducing total stroke. Sheet 3/3 shows movement of piston and both piston rods within new stroke restricted by piston and outside piston rod flange. Referring to sheet 2/3 showing cylinder 14, the plug 15 removed, piston 19 can now be positioned as sheet 3/3, spanner 16 engaged with piston rod 10 and after restricting rotation of piston rod 12 the spanner 16 can be turned clockwise or anti-clockwise to screw in or out piston rod 10 to give desired stroke of outside piston 12, when this is achieved, remove spanner 16 and replace plug 15. The new stroke of piston rod 12 will be now limited by the movement of piston 19 and the flange of outside piston rod 12. CLAIMS
1. Infinitely adjustable cylinder stroke comprising of second piston rod within the outside piston rod with range, connected to each other by means of screw thread and capable of movement within each other, and being adjusted.
2. Infinitely adjustable cylinder stroke as claimed in Claim 1 wherein outside piston rod is hollow with screw thread.
3. Infinitely adjustable cylinder stroke as claimed in Claim 1 or Claim 2 wherein outside piston rod have flange restricting movement.
4. Infinitely adjustable cylinder stroke as claimed in Claim 1 or Claim 2 wherein second piston rod within outside rod is screw threaded along the length.
5. Infinitely adjustable cylinder stroke as claimed in Claim 1 wherein access is provided by means of a plug to adjust piston rod.
6. Infinitely adjustable cylinder stroke substantially as described herein with reference to sheet 1/3, 2/3, and 3/3 accompanying drawings herewith.
GB08611278A 1986-05-08 1986-05-08 Adjustable cylinder stroke Withdrawn GB2190171A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08611278A GB2190171A (en) 1986-05-08 1986-05-08 Adjustable cylinder stroke

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08611278A GB2190171A (en) 1986-05-08 1986-05-08 Adjustable cylinder stroke

Publications (2)

Publication Number Publication Date
GB8611278D0 GB8611278D0 (en) 1986-06-18
GB2190171A true GB2190171A (en) 1987-11-11

Family

ID=10597544

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08611278A Withdrawn GB2190171A (en) 1986-05-08 1986-05-08 Adjustable cylinder stroke

Country Status (1)

Country Link
GB (1) GB2190171A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2264538A (en) * 1992-02-24 1993-09-01 Gold Star Ind System Adjusting stroke of hydraulic cylinder
EP0598234A1 (en) * 1992-11-16 1994-05-25 Eaton Corporation Locking mechanism for driving axle differential
EP1016509A2 (en) * 1998-12-15 2000-07-05 PFA Incorporated Threaded actuator for positioning structure subjected to intense loads
CN101372992B (en) * 2008-06-04 2010-12-22 郭玉恒 Method for converting fluid input into torque and swinging angle outputs and specific oil cylinder
CN109869434A (en) * 2019-02-13 2019-06-11 徐超 Universal piston rod

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110645226A (en) * 2019-10-08 2020-01-03 达英科(南京)设备有限公司 Cylinder group with adjustable effective stroke

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB851203A (en) * 1957-12-18 1960-10-12 Gaetano Baldelli Improvements in devices for adjusting the capacity of a reciprocating pump
GB992508A (en) * 1962-08-09 1965-05-19 James Holt Engineers Ltd Improvements in pneumatically or hydraulically operated ram and cylinder devices
GB1465520A (en) * 1973-09-04 1977-02-23 Kloeckner Werke Ag Fluid-pressure actuated piston and cylinder unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB851203A (en) * 1957-12-18 1960-10-12 Gaetano Baldelli Improvements in devices for adjusting the capacity of a reciprocating pump
GB992508A (en) * 1962-08-09 1965-05-19 James Holt Engineers Ltd Improvements in pneumatically or hydraulically operated ram and cylinder devices
GB1465520A (en) * 1973-09-04 1977-02-23 Kloeckner Werke Ag Fluid-pressure actuated piston and cylinder unit

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2264538A (en) * 1992-02-24 1993-09-01 Gold Star Ind System Adjusting stroke of hydraulic cylinder
EP0598234A1 (en) * 1992-11-16 1994-05-25 Eaton Corporation Locking mechanism for driving axle differential
TR28145A (en) * 1992-11-16 1996-02-29 Eaton Corp Locking mechanism for the drive axle differential.
EP1016509A2 (en) * 1998-12-15 2000-07-05 PFA Incorporated Threaded actuator for positioning structure subjected to intense loads
EP1016509A3 (en) * 1998-12-15 2002-12-18 PFA Incorporated Threaded actuator for positioning structure subjected to intense loads
CN101372992B (en) * 2008-06-04 2010-12-22 郭玉恒 Method for converting fluid input into torque and swinging angle outputs and specific oil cylinder
CN109869434A (en) * 2019-02-13 2019-06-11 徐超 Universal piston rod

Also Published As

Publication number Publication date
GB8611278D0 (en) 1986-06-18

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)