GB758816A - Improvements relating to moulds for use in the renovation of pneumatic tyres - Google Patents

Improvements relating to moulds for use in the renovation of pneumatic tyres

Info

Publication number
GB758816A
GB758816A GB1087653A GB1087653A GB758816A GB 758816 A GB758816 A GB 758816A GB 1087653 A GB1087653 A GB 1087653A GB 1087653 A GB1087653 A GB 1087653A GB 758816 A GB758816 A GB 758816A
Authority
GB
United Kingdom
Prior art keywords
members
tyre
sections
mould
tyres
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
GB1087653A
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.)
JOSEPH HORTON WELLINGS
Vacu-Lug Traction Tyres Ltd
Original Assignee
JOSEPH HORTON WELLINGS
Vacu-Lug Traction Tyres 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 JOSEPH HORTON WELLINGS, Vacu-Lug Traction Tyres Ltd filed Critical JOSEPH HORTON WELLINGS
Priority to GB1087653A priority Critical patent/GB758816A/en
Publication of GB758816A publication Critical patent/GB758816A/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)
    • B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
    • B29D30/54—Retreading
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • B29C2033/023—Thermal insulation of moulds or mould parts

Landscapes

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

Abstract

758,816. Retreading tyres. VACU-LUG TRACTION TYRES, Ltd., and WELLINGS, J. HORTON-. June 15, 1954 [April 21, 1953], No. 10876/53. Class 87(2) A mould having separate tread and side wall sections 10, 11, respectively, the heating or cooling of which can be controlled independently, is provided with members 23, 24 which allow the sections 10, 11 to separate and thus form an insulating space without allowing rubber to escape. Vent holes 27 are provided for the escape of gases. Spacing members 12, 13 are provided between the upper and lower sections 10, 11. The members 10 and 12 are aligned by spigots 16 and rebates 17, and secured by screws 19. The members are secured to press platens by lugs 18, 25, 25a, with the interposition of insulating material (see Fig. 4, not shown). The upper and lower platens are moved by a screw mechanism and fluid operated piston respectively. After moulding and curing of the tyre, the lower platen is lowered, the tyre remaining in the lower section owing to its greater depth, and during this movement plungers on which the section 11 is mounted engage an abutment to provide relative movement between the lower sections 10, 11 and thus strip the tyre from the mould. The mould parts may be made of an aluminium alloy.
GB1087653A 1953-04-21 1953-04-21 Improvements relating to moulds for use in the renovation of pneumatic tyres Expired GB758816A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1087653A GB758816A (en) 1953-04-21 1953-04-21 Improvements relating to moulds for use in the renovation of pneumatic tyres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1087653A GB758816A (en) 1953-04-21 1953-04-21 Improvements relating to moulds for use in the renovation of pneumatic tyres

Publications (1)

Publication Number Publication Date
GB758816A true GB758816A (en) 1956-10-10

Family

ID=9975953

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1087653A Expired GB758816A (en) 1953-04-21 1953-04-21 Improvements relating to moulds for use in the renovation of pneumatic tyres

Country Status (1)

Country Link
GB (1) GB758816A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2233275A (en) * 1989-05-25 1991-01-09 Barnett Int Ltd Uniformly curing moulded plastics by varying the heat input in proportion to the cavity size
FR3014009A1 (en) * 2013-12-04 2015-06-05 Michelin & Cie PNEUMATIC SECTOR MOLD AND METHOD FOR MOLDING THE SAME

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2233275A (en) * 1989-05-25 1991-01-09 Barnett Int Ltd Uniformly curing moulded plastics by varying the heat input in proportion to the cavity size
FR3014009A1 (en) * 2013-12-04 2015-06-05 Michelin & Cie PNEUMATIC SECTOR MOLD AND METHOD FOR MOLDING THE SAME
WO2015082323A1 (en) * 2013-12-04 2015-06-11 Compagnie Generale Des Etablissements Michelin Segmented mold for a tire, and related molding method
US10239270B2 (en) 2013-12-04 2019-03-26 Compagnie Generale Des Etablissements Michelin Segmented mold for a tire and related molding method

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