GB593531A - Improvements in and relating to the moulding of plastic materials - Google Patents

Improvements in and relating to the moulding of plastic materials

Info

Publication number
GB593531A
GB593531A GB1379745A GB1379745A GB593531A GB 593531 A GB593531 A GB 593531A GB 1379745 A GB1379745 A GB 1379745A GB 1379745 A GB1379745 A GB 1379745A GB 593531 A GB593531 A GB 593531A
Authority
GB
United Kingdom
Prior art keywords
moulding
relating
plastic materials
crown
shank
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
GB1379745A
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
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB593531A publication Critical patent/GB593531A/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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • B29C43/183—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles the preformed layer being a lining, e.g. shaped in the mould before compression moulding, or a preformed shell adapted to the shape of the mould
    • B29C43/184—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles the preformed layer being a lining, e.g. shaped in the mould before compression moulding, or a preformed shell adapted to the shape of the mould shaped by the compression of the material during moulding
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/50—Removing moulded articles
    • B29C2043/5007—Removing moulded articles using cores, i.e. the cores forming part of the mould cavity
    • B29C2043/5015—Removing moulded articles using cores, i.e. the cores forming part of the mould cavity having undercuts or being threaded
    • 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
    • B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
    • B29L2031/565—Stoppers or lids for bottles, jars, or the like, e.g. closures for containers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

593,531. Bottle stoppers. WALL, F. E. June 1, 1945. No. 13797. [Class 125 (iii)] [Also in Group V] An internally screwthreaded bottle stopper comprises a shank 1 and a crown 11 a disc of fabric paper or sheet plastic being interposed between the shank and the crown. The disc may be omitted.
GB1379745A 1945-06-01 Improvements in and relating to the moulding of plastic materials Expired GB593531A (en)

Publications (1)

Publication Number Publication Date
GB593531A true GB593531A (en) 1947-10-20

Family

ID=1730213

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1379745A Expired GB593531A (en) 1945-06-01 Improvements in and relating to the moulding of plastic materials

Country Status (1)

Country Link
GB (1) GB593531A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002092312A1 (en) * 2001-05-11 2002-11-21 West Pharmaceutical Services Deutschland Gmbh & Co. Kg Pharmaceutical syringe piston and method and device therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002092312A1 (en) * 2001-05-11 2002-11-21 West Pharmaceutical Services Deutschland Gmbh & Co. Kg Pharmaceutical syringe piston and method and device therefor
JP2004525011A (en) * 2001-05-11 2004-08-19 ウェスト ファーマシューティカル サーヴィスィーズ ドイチュラント ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト Pharmaceutical syringe piston and method and apparatus for manufacturing the syringe piston
US7547297B2 (en) 2001-05-11 2009-06-16 West Pharmaceutical Services Deutschland Gmbh & Co. Kg Pharmaceutical syringe piston
US7691308B2 (en) 2001-05-11 2010-04-06 West Pharmceutical Services Deutschland GmbH & Co. KG Method and device for producing a pharmaceutical syringe piston stopper

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