GB730938A - Improvements in or relating to curing bag construction - Google Patents

Improvements in or relating to curing bag construction

Info

Publication number
GB730938A
GB730938A GB22963/53A GB2296353A GB730938A GB 730938 A GB730938 A GB 730938A GB 22963/53 A GB22963/53 A GB 22963/53A GB 2296353 A GB2296353 A GB 2296353A GB 730938 A GB730938 A GB 730938A
Authority
GB
United Kingdom
Prior art keywords
bag
valve
rubber
spring
relating
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
GB22963/53A
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.)
Bridgestone Firestone Inc
Original Assignee
Firestone Tire and Rubber 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 Firestone Tire and Rubber Co filed Critical Firestone Tire and Rubber Co
Publication of GB730938A publication Critical patent/GB730938A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0654—Flexible cores therefor, e.g. bladders, bags, membranes, diaphragms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0654—Flexible cores therefor, e.g. bladders, bags, membranes, diaphragms
    • B29D2030/0658—Venting devices for the flexible cores

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

730,938. Curing bags for tyres. FIRESTONE TIRE & RUBBER CO. Aug. 20, 1953 [April 15, 1953], No. 22963/53. Class 87 (2). The valve of a tyre-curing bag is secured by a coiled spring 23, Fig. 9, surrounding the valve and embedded in the rubber of the bag during its vulcanization. The valve is composed of two parts, an internally threaded stem base 11, covered with a rubber sheath 12 (not shown), which is lodged in a slit cut in the bag at the inflating hole 15, Fig. 3, and an extension 19, Fig. 6, which carries the spring 23 and which is screwed into the stem base so that, during vulcanization, the spring sinks into the bag wall.
GB22963/53A 1953-04-15 1953-08-20 Improvements in or relating to curing bag construction Expired GB730938A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US730938XA 1953-04-15 1953-04-15

Publications (1)

Publication Number Publication Date
GB730938A true GB730938A (en) 1955-06-01

Family

ID=22111689

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22963/53A Expired GB730938A (en) 1953-04-15 1953-08-20 Improvements in or relating to curing bag construction

Country Status (1)

Country Link
GB (1) GB730938A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105328425A (en) * 2015-12-09 2016-02-17 苏州立创精密模具科技有限公司 High-mirror processing method for mould insert core of convex slide mould

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105328425A (en) * 2015-12-09 2016-02-17 苏州立创精密模具科技有限公司 High-mirror processing method for mould insert core of convex slide mould

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