GB728966A - A method for making bursting discs and/or vacuum supports - Google Patents

A method for making bursting discs and/or vacuum supports

Info

Publication number
GB728966A
GB728966A GB16505/52A GB1650552A GB728966A GB 728966 A GB728966 A GB 728966A GB 16505/52 A GB16505/52 A GB 16505/52A GB 1650552 A GB1650552 A GB 1650552A GB 728966 A GB728966 A GB 728966A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
mould
pressure
disc
silver
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
GB16505/52A
Inventor
Thomas Bruce Philip
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.)
Distillers Co Yeast Ltd
Distillers Co Ltd
Original Assignee
Distillers Co Yeast Ltd
Distillers Co 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 Distillers Co Yeast Ltd, Distillers Co Ltd filed Critical Distillers Co Yeast Ltd
Publication of GB728966A publication Critical patent/GB728966A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021—Deforming sheet bodies
    • B21D26/031—Mould construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/049—Deforming bodies having a closed end
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
    • F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs

Abstract

728,966. Making frangible diaphragms. DISTILLERS CO., Ltd. June 10, 1953 [July 1, 1952], No, 16505/52. Classes 83 (2) and 83 (4). Stamping.-A process for the'manufacture of a dome-shaped frangible diaphragm for use in a safety device for pressure vessels comprises forming a sheet metal blank by fluid pressure in a mould to the shape which it would, take up when subjected to a positive pressure differential intermediate the normal pressure differential at which it is to be used and the pressure differential at which the diaphragm will rupture. The mould is made by reinforcing a formed diaphragm by casting metal or phenol-formaldehyde resin on its convex surface and then perforating the mould to allow the escape of air during a diaphragm forming operation. Alternatively, the original diaphragm is used as a pattern and does not form part of the mould. Vacuum supports for protecting the diaphragms from distortion and collapse under negative pressure differentials are formed from the same mould by leaving a formed diaphragm in the mould and then forming the vacuum support on top of it so that the convex surface of the support exactly fits the concave surface of the diaphragm. Alternatively, both diaphragm and support may be made simultaneously. The vacuum supports are pierced to allow the internal pressure in the pressure vessel to act on the frangible diaphragm. The supports and diaphragms may be made from nickel, silver, copper, stainless steel and other metal alloys. In a specific example a disc of.sheet silver is formed into a diaphragm using 170 lb. per square inch hydraulic pressure and a mould made by casting Woods' metal around its convex surface. The mould is pierced and a further disc of silver and a disc of nickel approximately three times as thick as the silver disc are placed on the mould, clamped in position and subjected to 1200 lb. per square inch hydraulic pressure. The formed discs are removed and the nickel disc perforated to form the vacuum support. Specification 711,516, [Group XXIX]; is referred to.
GB16505/52A 1952-07-01 1952-07-01 A method for making bursting discs and/or vacuum supports Expired GB728966A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB310019X 1952-07-01

Publications (1)

Publication Number Publication Date
GB728966A true GB728966A (en) 1955-04-27

Family

ID=10316444

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16505/52A Expired GB728966A (en) 1952-07-01 1952-07-01 A method for making bursting discs and/or vacuum supports

Country Status (6)

Country Link
BE (1) BE521091A (en)
CH (1) CH310019A (en)
DE (1) DE1011239B (en)
FR (1) FR1083662A (en)
GB (1) GB728966A (en)
NL (1) NL89679C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1550259B1 (en) * 1965-09-03 1970-04-02 Grove Valve & Regulator Co Slide chamber for gate valve
US3386151A (en) * 1965-09-14 1968-06-04 Grove Valve & Regulator Co Valve construction method
US4662126A (en) * 1986-05-23 1987-05-05 Fike Corporation Vibration resistant explosion control vent

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1625914A (en) * 1927-04-26 jcaises
US1446585A (en) * 1920-06-14 1923-02-27 Eugene A Riotte Safety device for refrigerating machines
CH113207A (en) * 1925-04-01 1926-01-02 Danger Grewar Leonard Method and apparatus for making articles of thin material in molds by fluid pressure.
GB650747A (en) * 1944-09-02 1951-02-28 Mario Cesati Process for shaping thin sheet metal

Also Published As

Publication number Publication date
DE1011239B (en) 1957-06-27
FR1083662A (en) 1955-01-11
BE521091A (en)
NL89679C (en)
CH310019A (en) 1955-09-30

Similar Documents

Publication Publication Date Title
US3921556A (en) Scored reverse buckling rupture disk manufacturing method
GB1525368A (en) Rupture disc pressure relief device
US1625914A (en) jcaises
US4655070A (en) Scored concave-convex rupture disk and method of manufacture
GB728966A (en) A method for making bursting discs and/or vacuum supports
CA1293652C (en) Forming of metal articles
GB716734A (en) Improvements in or relating to safety devices for pressure vessels
Vermilyea A film rupture model for stress corrosion cracking
GB774812A (en) Improvements in and relating to vacuum supports for pressure releasing devices
GB736229A (en) Improvements in or relating to the manufacture of frangible diaphragms for safety devices
CN205423984U (en) Rupture disc device
GB1454174A (en) Apparatus for use in the production of pallets
GB894074A (en) Improvements in or relating to cooking vessels
CN205081161U (en) Round platform shape trough of belt rupture disc device for battery
Nakamura et al. Studies on Hydraulic Counter Pressure Forming. V. Hydraulic Counter Pressure Deep Drawing of Truncated Conical Shells
JPS6415576A (en) Metallic diaphragm valve
GB650747A (en) Process for shaping thin sheet metal
ES341231A1 (en) Glass sheet press bending mold
JPS5758927A (en) Precision blanking die
GB888461A (en) Improvements relating to a method of and means for forming an inflated hollow body from sheet or plate metal
JPS5627149A (en) Table
GB1308230A (en) Snap discs and methods and apparatus for making same
SU1562042A1 (en) Die for drawing hollow articles
JPS5536703A (en) Transducer for pressure gauge
AT159003B (en) Withdrawal and warning signal for oxygen protection devices.