GB280596A - Improvements in or relating to machines for making pencils - Google Patents

Improvements in or relating to machines for making pencils

Info

Publication number
GB280596A
GB280596A GB30552/27A GB3055227A GB280596A GB 280596 A GB280596 A GB 280596A GB 30552/27 A GB30552/27 A GB 30552/27A GB 3055227 A GB3055227 A GB 3055227A GB 280596 A GB280596 A GB 280596A
Authority
GB
United Kingdom
Prior art keywords
nozzle
mass
core
progressively
pencils
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
GB30552/27A
Other languages
English (en)
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
Publication of GB280596A publication Critical patent/GB280596A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K19/00—Non-propelling pencils; Styles; Crayons; Chalks
    • B43K19/16—Making non-propelling pencils
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/345—Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
GB30552/27A 1926-11-13 1927-11-14 Improvements in or relating to machines for making pencils Expired GB280596A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US148153A US1706728A (en) 1926-11-13 1926-11-13 Pencil-making machine

Publications (1)

Publication Number Publication Date
GB280596A true GB280596A (en) 1928-06-21

Family

ID=22524526

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30552/27A Expired GB280596A (en) 1926-11-13 1927-11-14 Improvements in or relating to machines for making pencils

Country Status (6)

Country Link
US (1) US1706728A (enrdf_load_stackoverflow)
BE (1) BE346738A (enrdf_load_stackoverflow)
DE (1) DE496016C (enrdf_load_stackoverflow)
FR (1) FR702869A (enrdf_load_stackoverflow)
GB (1) GB280596A (enrdf_load_stackoverflow)
NL (1) NL23143C (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106113998A (zh) * 2016-08-22 2016-11-16 浙江彭胜文教用品股份有限公司 一种加热挤出式的铅笔成型方法
CN108773232A (zh) * 2018-06-05 2018-11-09 安徽得亿文教用品有限公司 一种塑料铅笔铅芯挤出成型模具

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446057A (en) * 1944-04-25 1948-07-27 Davis Marinsky Plastic casting machine
US2456304A (en) * 1944-04-25 1948-12-14 Louis H Morin Method of forming coaxial cables
US2848739A (en) * 1955-09-30 1958-08-26 Western Electric Co Methods of and apparatus for making cellular plastic products
DE1561767B1 (de) * 1967-10-04 1972-07-06 Bayer Ag Schreibstift
WO1991011335A1 (de) * 1990-02-04 1991-08-08 J.S. Staedtler Gmbh & Co. Schreib- oder malstift und verfahren zu dessen herstellung
DE4003289C2 (de) * 1990-02-04 2000-02-03 Staedtler Fa J S Schreib- oder Malstift mit einem Schaft aus einer Umhüllung aus blatt- oder folienförmigem Material und Verfahren zu dessen Herstellung
CN103978809B (zh) * 2014-05-30 2016-03-16 苏州凯丰电子电器有限公司 一种滚筒胶芯机
CN108824052B (zh) * 2018-06-28 2023-09-26 西南交通大学 一种碎纸处理合成纸质环保铅笔一体机

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106113998A (zh) * 2016-08-22 2016-11-16 浙江彭胜文教用品股份有限公司 一种加热挤出式的铅笔成型方法
CN106113998B (zh) * 2016-08-22 2017-06-16 浙江彭胜文教用品股份有限公司 一种加热挤出式的铅笔成型方法
CN108773232A (zh) * 2018-06-05 2018-11-09 安徽得亿文教用品有限公司 一种塑料铅笔铅芯挤出成型模具

Also Published As

Publication number Publication date
FR702869A (fr) 1931-04-18
DE496016C (de) 1930-04-12
US1706728A (en) 1929-03-26
BE346738A (enrdf_load_stackoverflow) 1900-01-01
NL23143C (enrdf_load_stackoverflow) 1900-01-01

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