GB927089A - Improvements in the manufacture of footwear - Google Patents

Improvements in the manufacture of footwear

Info

Publication number
GB927089A
GB927089A GB44661A GB44661A GB927089A GB 927089 A GB927089 A GB 927089A GB 44661 A GB44661 A GB 44661A GB 44661 A GB44661 A GB 44661A GB 927089 A GB927089 A GB 927089A
Authority
GB
United Kingdom
Prior art keywords
heel
mould
tread
covering
skin
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
GB44661A
Inventor
Frank Haworth
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.)
Lambert Howarth and Sons Ltd
Tronox Pigment UK Ltd
Original Assignee
Cristal Pigment UK Ltd
Lambert Howarth and Sons 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 Cristal Pigment UK Ltd, Lambert Howarth and Sons Ltd filed Critical Cristal Pigment UK Ltd
Priority to GB44661A priority Critical patent/GB927089A/en
Publication of GB927089A publication Critical patent/GB927089A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00Producing footwear
    • B29D35/06Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising
    • B29D35/08Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising having multilayered parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00Use of unspecified rubbers as moulding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

927,089. Moulding soles to uppers. LAMBERT HOWARTH & SONS Ltd. Dec. 29, 1961 [Jan. 5, 1961], No. 446/61. Class 17 (2). [Also in Group V] A heel C and a covering c, and a sole B are moulded to an upper d, on a last O, in a mould consisting of a base-plate 1, with a recess for the heel tread, and a ring 2. In the mould are placed the sole unit B consisting of a skin b of partly cured rubber or like material and a rubber mix b<SP>1</SP> containing an expanding agent, and the heel unit C consisting of a wooden or plastic core surrounded by partly cured rubber or like material c<SP>2</SP>, the outer covering c of leather or other compound, and a heel tread c<SP>l</SP>. The sole and heel units are vulcanized by heat. The covering material c may match the upper, may be any number of ply and may be secured to a stiffening ply by adhesive. A lip may be provided around part or the whole of the mould. The skin b may extend below the ring at the heel end and may cover or be covered by the heel tread c<SP>1</SP>, or a further tread may be applied over the skin after the moulding operation. In a modification the heel is formed by placing the covering c in the mould and adding a filling material with strips of vulcanizable material to form the core of the heel.
GB44661A 1961-01-05 1961-01-05 Improvements in the manufacture of footwear Expired GB927089A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB44661A GB927089A (en) 1961-01-05 1961-01-05 Improvements in the manufacture of footwear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB44661A GB927089A (en) 1961-01-05 1961-01-05 Improvements in the manufacture of footwear

Publications (1)

Publication Number Publication Date
GB927089A true GB927089A (en) 1963-05-29

Family

ID=9704482

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44661A Expired GB927089A (en) 1961-01-05 1961-01-05 Improvements in the manufacture of footwear

Country Status (1)

Country Link
GB (1) GB927089A (en)

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