GB438876A - Improvements in and relating to electrically heated vulcanizers - Google Patents

Improvements in and relating to electrically heated vulcanizers

Info

Publication number
GB438876A
GB438876A GB570134A GB570134A GB438876A GB 438876 A GB438876 A GB 438876A GB 570134 A GB570134 A GB 570134A GB 570134 A GB570134 A GB 570134A GB 438876 A GB438876 A GB 438876A
Authority
GB
United Kingdom
Prior art keywords
mould
casing
air
lagging
tyre
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
GB570134A
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.)
RONALD LLEWELLYN FISHER
Original Assignee
RONALD LLEWELLYN FISHER
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 RONALD LLEWELLYN FISHER filed Critical RONALD LLEWELLYN FISHER
Priority to GB570134A priority Critical patent/GB438876A/en
Publication of GB438876A publication Critical patent/GB438876A/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
    • 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
    • B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
    • B29C73/24—Apparatus or accessories not otherwise provided for
    • B29C73/30—Apparatus or accessories not otherwise provided for for local pressing or local heating
    • B29C73/305—Apparatus or accessories not otherwise provided for for local pressing or local heating specially adapted for toroidal articles, e.g. tyres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof

Landscapes

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

Abstract

438,876. Electric vulcanizers. FISHER, R. L., 14, Dalgety's Building, Cathedral Square, Christchurch, New Zealand. Feb. 21, 1934, No. 5701. [Class 70] [See also Group XI] In an electrically-heated vulcanizer of the type comprising a casing having one side enclosed by the vulcanizing mould or plate and containing heating elements spaced from said mould with an intermediate air layer, a draught box or means for air admission, positioned at the bottom of said casing, a vent for escape of air, and adjustable means for wholly or partially intercepting the air leaving said vent are provided. A vulcanizer for the segmental retreading of tyres comprises a U-shaped metal mould 1 forming part of a casing enveloped in lagging 7. An electric heating element 9 is uniformly spaced from the mould while an element 10 or " booster," of higher heating capacity, and an element 11 or " wallbooster " are arranged relatively to the element 9 as shown. The booster 10 is used for preheating while the wall-booster is employed for reducing the heat transfer to the walls. A draught box 17 and vent 19 provided with a slidable cover 21 permit of the production of a convection air current through the casing. Openings 14, 15 in the lagging permit radiation from the mid-portion of the apparatus through apertures 16 the area of which may be variable. The mould 1 is formed with ridges 23 serving as radiating surfaces and to receive the tyre clamps 24. The lagging on the top of the casing formed by the mould may also be in the form of covers 25 adjustable in slides 26. A movable lining or matrix fits within the mould 1 and receives the tyre. By substituting matrices of different thicknesses, tyres of varying tread widths can be treated. To vary the length of the segment cured, the mould is formed with a stepped portion 28 at one or both ends. The space between the matrix and the portion 28 can be filled with metal fillets of various lengths. Moreover, a break may be formed in the matrix, the separate portion being held in a bracket. A thermometer opening 29 is provided. A cover for the mould is provided when no tyre is in position. The current to the elements 10 and 11 may be automatically cut off at the desired time by means of a time switch or thermostat.
GB570134A 1934-02-21 1934-02-21 Improvements in and relating to electrically heated vulcanizers Expired GB438876A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB570134A GB438876A (en) 1934-02-21 1934-02-21 Improvements in and relating to electrically heated vulcanizers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB570134A GB438876A (en) 1934-02-21 1934-02-21 Improvements in and relating to electrically heated vulcanizers

Publications (1)

Publication Number Publication Date
GB438876A true GB438876A (en) 1935-11-21

Family

ID=9801007

Family Applications (1)

Application Number Title Priority Date Filing Date
GB570134A Expired GB438876A (en) 1934-02-21 1934-02-21 Improvements in and relating to electrically heated vulcanizers

Country Status (1)

Country Link
GB (1) GB438876A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116604857A (en) * 2023-07-20 2023-08-18 山东豪迈机械科技股份有限公司 Vulcanizing device reconstruction method and vulcanizing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116604857A (en) * 2023-07-20 2023-08-18 山东豪迈机械科技股份有限公司 Vulcanizing device reconstruction method and vulcanizing device
CN116604857B (en) * 2023-07-20 2023-10-03 山东豪迈机械科技股份有限公司 Vulcanizing device reconstruction method and vulcanizing device

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