GB393805A - A method of producing flexible brush backs composed of an elastic material - Google Patents

A method of producing flexible brush backs composed of an elastic material

Info

Publication number
GB393805A
GB393805A GB2450432A GB2450432A GB393805A GB 393805 A GB393805 A GB 393805A GB 2450432 A GB2450432 A GB 2450432A GB 2450432 A GB2450432 A GB 2450432A GB 393805 A GB393805 A GB 393805A
Authority
GB
United Kingdom
Prior art keywords
mould
studs
brush
rubber
holes
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
GB2450432A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2450432A priority Critical patent/GB393805A/en
Publication of GB393805A publication Critical patent/GB393805A/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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/0033—Moulds or cores; Details thereof or accessories therefor constructed for making articles provided with holes
    • 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
    • B29D21/00—Producing hair combs or similar toothed or slotted articles
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2628—Moulds with mould parts forming holes in or through the moulded article, e.g. for bearing cages
    • 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
    • B29K2021/00—Use of unspecified rubbers 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
    • B29L2031/42—Brushes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Coating Apparatus (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

393,805. Moulding flexible brush backs; vulcanizing-moulds. WESSEL, W., 112, Hindenburgstrasse, Remscheid, Germany. Sept. 2,1932, No. 24504. [Classes. 70 and 87 (ii).] Flexible brush backs are formed from an elastic material, such as rubber, the holes for the reception of the tufts or bristles being produced during the moulding of the back. The mould comprises an upper part 1 and a lower part 2 carrying studs 3 for forming the holes in the brush back. The studs 4 at the periphery are disposed somewhat obliquely while those in the centre are vertical' and they abut against the top 1 when the mould is closed. In a modification the studs are reduced at their upper ends 9. When it is desired to secure the bristles by wires, grooves for the reception of the wires are formed in the brush back by ribs 10 on the top mould part which may be either broader or narrower than the studs 3 and may be arranged in circles or zig-zag form. In a further modification, Fig. 8, the studs 11, 12 are carried by a plunger 13 which is slidable in the mould part 2 and retained by a screw 14 so that the studs can be withdrawn from the moulded brush back before the mould is opened. The mould parts are brought into register by pins 6 engaging holes 7 and the mould is first filled with pieces of rubber and then heated to soften the rubber and finally vulcanize it. The brush back may have an ornamental design formed on it or may be provided with an additional backing.
GB2450432A 1932-09-02 1932-09-02 A method of producing flexible brush backs composed of an elastic material Expired GB393805A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2450432A GB393805A (en) 1932-09-02 1932-09-02 A method of producing flexible brush backs composed of an elastic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2450432A GB393805A (en) 1932-09-02 1932-09-02 A method of producing flexible brush backs composed of an elastic material

Publications (1)

Publication Number Publication Date
GB393805A true GB393805A (en) 1933-06-15

Family

ID=10212690

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2450432A Expired GB393805A (en) 1932-09-02 1932-09-02 A method of producing flexible brush backs composed of an elastic material

Country Status (1)

Country Link
GB (1) GB393805A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0031194B1 (en) * 1979-12-17 1983-07-06 Caterpillar Tractor Co. Method and apparatus for forming a tyre sidewall protector
GB2122532A (en) * 1982-05-20 1984-01-18 K S R International Limited Manufacture of gas-permeable plugs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0031194B1 (en) * 1979-12-17 1983-07-06 Caterpillar Tractor Co. Method and apparatus for forming a tyre sidewall protector
GB2122532A (en) * 1982-05-20 1984-01-18 K S R International Limited Manufacture of gas-permeable plugs

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