GB640407A - Improvements in or relating to apparatus for forming bellows - Google Patents

Improvements in or relating to apparatus for forming bellows

Info

Publication number
GB640407A
GB640407A GB1973/48A GB197348A GB640407A GB 640407 A GB640407 A GB 640407A GB 1973/48 A GB1973/48 A GB 1973/48A GB 197348 A GB197348 A GB 197348A GB 640407 A GB640407 A GB 640407A
Authority
GB
United Kingdom
Prior art keywords
pressure
accumulator
jan
class
forming
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
GB1973/48A
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.)
Standard Thomson Corp
Original Assignee
Standard Thomson Corp
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 Standard Thomson Corp filed Critical Standard Thomson Corp
Publication of GB640407A publication Critical patent/GB640407A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/02—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having bellows
    • 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
    • F15B2201/00—Accumulators
    • F15B2201/20—Accumulator cushioning means
    • F15B2201/205—Accumulator cushioning means using gas

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

640,407. Corrugating. STANDARD-THOMSON CORPORATION. Jan. 22, 1948, No. 1973. Convention date, Jan. 29, 1947. [Class 83 (iv)] Apparatus for corrugating tubes comprises a forming machine, means for supplying liquid under pressure to the machine and a substantially inertialess accumulator to maintain a constant pressure during the forming operation. Liquid under pressure is supplied to the forming machine 2 which may be of the type described in Specification 324,134, [Class 83 (iv)], by means of a pump 10 through a valve 38, the pump plunger 12 being controlled by a solenoid valve 20 actuated in response to the opening or closing of a pressure-sensitive switch 52 according as the liquid pressure rises above or falls below its predetermined value. The pressure is maintained sensibly constant throughout the forming operation by an accumulator 30 containing a bladder 32 inflated to a desired pressure by air.
GB1973/48A 1947-01-29 1948-01-22 Improvements in or relating to apparatus for forming bellows Expired GB640407A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US640407XA 1947-01-29 1947-01-29

Publications (1)

Publication Number Publication Date
GB640407A true GB640407A (en) 1950-07-19

Family

ID=22053168

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1973/48A Expired GB640407A (en) 1947-01-29 1948-01-22 Improvements in or relating to apparatus for forming bellows

Country Status (1)

Country Link
GB (1) GB640407A (en)

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