GB1022762A - Improvements relating to the manufacture of shoemakers' lasts' - Google Patents

Improvements relating to the manufacture of shoemakers' lasts'

Info

Publication number
GB1022762A
GB1022762A GB1975261A GB1975261A GB1022762A GB 1022762 A GB1022762 A GB 1022762A GB 1975261 A GB1975261 A GB 1975261A GB 1975261 A GB1975261 A GB 1975261A GB 1022762 A GB1022762 A GB 1022762A
Authority
GB
United Kingdom
Prior art keywords
last
lasts
mould
polyurethane
shoemakers
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
GB1975261A
Inventor
John Tusa
Frank Vincent Maltby
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.)
British Bata Shoe Co Ltd
Original Assignee
British Bata Shoe 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 British Bata Shoe Co Ltd filed Critical British Bata Shoe Co Ltd
Priority to GB1975261A priority Critical patent/GB1022762A/en
Priority to ES277794A priority patent/ES277794A1/en
Priority to DE19621485890 priority patent/DE1485890A1/en
Priority to CH666262A priority patent/CH385482A/en
Publication of GB1022762A publication Critical patent/GB1022762A/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
    • B29D35/00—Producing footwear
    • B29D35/0009—Producing footwear by injection moulding; Apparatus therefor
    • B29D35/0018—Moulds
    • B29D35/0027—Last constructions; Mountings therefor
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D3/00—Lasts
    • A43D3/02—Lasts for making or repairing shoes
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • 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
    • B29D35/00—Producing footwear
    • B29D35/0054—Producing footwear by compression moulding, vulcanising or the like; Apparatus therefor
    • B29D35/0063—Moulds
    • B29D35/0072—Last constructions; Mountings therefor
    • 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
    • B29C33/12—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
    • B29C33/14—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels against the mould wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING 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
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/48—Wearing apparel
    • B29L2031/50—Footwear, e.g. shoes or parts thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

1,022,762. Moulding lasts of polyurethane. BRITISH BATA SHOE CO. Ltd. May 25, 1962 [June 1, 1961], No. 19752/61. Heading B5A. [Also in Division A3] A last of rigid polyurethane foam, the density of which is of the order of 18 to 25 lbs. per cubic foot is made by polymerization in a multipart mould. A pin fixed to one mould part forms a socket in the last and, during moulding, a pin is embedded in the last to extend therefrom. A reinforcing insert for the last, e.g. a metallic insert, may be located in the mould and the polyurethane may incorporate a fibrous reinforcing material or a strengthening metallic soap or powder additive.
GB1975261A 1961-06-01 1961-06-01 Improvements relating to the manufacture of shoemakers' lasts' Expired GB1022762A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB1975261A GB1022762A (en) 1961-06-01 1961-06-01 Improvements relating to the manufacture of shoemakers' lasts'
ES277794A ES277794A1 (en) 1961-06-01 1962-05-29 A method to manufacture a shoe horse or part of it (Machine-translation by Google Translate, not legally binding)
DE19621485890 DE1485890A1 (en) 1961-06-01 1962-05-30 Method and device for the production of shoemaker's lasts and lasts made with them
CH666262A CH385482A (en) 1961-06-01 1962-06-01 Process for manufacturing a shoemaker's shape, mold for implementing this process and shape resulting from this process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1975261A GB1022762A (en) 1961-06-01 1961-06-01 Improvements relating to the manufacture of shoemakers' lasts'

Publications (1)

Publication Number Publication Date
GB1022762A true GB1022762A (en) 1966-03-16

Family

ID=10134618

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1975261A Expired GB1022762A (en) 1961-06-01 1961-06-01 Improvements relating to the manufacture of shoemakers' lasts'

Country Status (4)

Country Link
CH (1) CH385482A (en)
DE (1) DE1485890A1 (en)
ES (1) ES277794A1 (en)
GB (1) GB1022762A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2589311A1 (en) * 2011-11-04 2013-05-08 Spannrit Schuhkomponenten GmbH Method and device for producing and adjusting customised orthopaedic shoe inserts
CN109676851B (en) * 2019-01-10 2021-03-02 佛山市锦德机械设备有限公司 Foaming shoe sole forming foaming process

Also Published As

Publication number Publication date
CH385482A (en) 1964-12-15
ES277794A1 (en) 1962-10-16
DE1485890A1 (en) 1969-04-24

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