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GB401428A - Improvements in or relating to machines for the manufacture of moulded articles from plastic moulding compositions - Google Patents

Improvements in or relating to machines for the manufacture of moulded articles from plastic moulding compositions

Info

Publication number
GB401428A
GB401428A GB19588/32A GB1958832A GB401428A GB 401428 A GB401428 A GB 401428A GB 19588/32 A GB19588/32 A GB 19588/32A GB 1958832 A GB1958832 A GB 1958832A GB 401428 A GB401428 A GB 401428A
Authority
GB
United Kingdom
Prior art keywords
extruded
ram
bar
plunger
effected
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
GB19588/32A
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.)
FREDERICK WILLIAM JONES JUNIOR
ROCKHARD RESINS Ltd
Original Assignee
FREDERICK WILLIAM JONES JUNIOR
ROCKHARD RESINS 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 FREDERICK WILLIAM JONES JUNIOR, ROCKHARD RESINS Ltd filed Critical FREDERICK WILLIAM JONES JUNIOR
Priority to GB19588/32A priority Critical patent/GB401428A/en
Publication of GB401428A publication Critical patent/GB401428A/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
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/475—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pistons, accumulators or press rams
    • 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
    • B29C48/03—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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

401,428. Extruding plastic substances. ROCKHARD RESINS, Ltd., Abbey House, Baker Street, London, and JONES, F. W., 19, Park Hill Road, Croydon. July 11, 1932, No. 19588. [Class 87 (ii).] Rods, tubes, beading &c. of thermo-setting plastic materials are made by extruding the material against a definite and predetermined pressure. The material is fed into a hopper C communicating with a mould A<1> in which reciprocates an hydraulically actuated ram D, forward movement of which is effected by a plunger D<1> while the return stroke is effected by the plunger rod D<4>. The material is extruded through a die A<2> of the required cross section and the extruded column may, during its movement, be gripped by magnetically actuated pivoted clamps E, carried by a ram F<4> which slides on guides F<2> against predetermined hydraulic pressure. In a modification, clamps E Fig. 3 are mechanically engaged with the extruded bar by cam actuated linkage N<2>, N<3>, the ram D also being crank driven in this case. In a further modification, the extruded bar is passed into a guide tube in which it abuts against a co-axial plunger which moves rearwardly with the bar against hydraulic pressure. The counter-pressure may also be applied by a weight, spring or electro-magnetic means. The mould and die may be cooled at J<1> and J, and electrical heating may be applied at K.
GB19588/32A 1932-07-11 1932-07-11 Improvements in or relating to machines for the manufacture of moulded articles from plastic moulding compositions Expired GB401428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB19588/32A GB401428A (en) 1932-07-11 1932-07-11 Improvements in or relating to machines for the manufacture of moulded articles from plastic moulding compositions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19588/32A GB401428A (en) 1932-07-11 1932-07-11 Improvements in or relating to machines for the manufacture of moulded articles from plastic moulding compositions

Publications (1)

Publication Number Publication Date
GB401428A true GB401428A (en) 1933-11-16

Family

ID=10131880

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19588/32A Expired GB401428A (en) 1932-07-11 1932-07-11 Improvements in or relating to machines for the manufacture of moulded articles from plastic moulding compositions

Country Status (1)

Country Link
GB (1) GB401428A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435282A (en) * 1943-11-19 1948-02-03 Lester Engineering Co Process and apparatus for extruding plastic materials
US2435426A (en) * 1942-07-27 1948-02-03 Cellomold Ltd Extrusion machine
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
US2549569A (en) * 1948-04-26 1951-04-17 Detroit Macoid Corp Temperature control device
US2685115A (en) * 1949-06-25 1954-08-03 Crane Co Apparatus for the production of pipe
US2694349A (en) * 1949-06-25 1954-11-16 Crane Co Method for producing cement pipes
DE2709523A1 (en) * 1976-03-08 1977-10-27 Keltrol Enterprises Inc EXTRUDER

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435426A (en) * 1942-07-27 1948-02-03 Cellomold Ltd Extrusion machine
US2435282A (en) * 1943-11-19 1948-02-03 Lester Engineering Co Process and apparatus for extruding plastic materials
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
US2549569A (en) * 1948-04-26 1951-04-17 Detroit Macoid Corp Temperature control device
US2685115A (en) * 1949-06-25 1954-08-03 Crane Co Apparatus for the production of pipe
US2694349A (en) * 1949-06-25 1954-11-16 Crane Co Method for producing cement pipes
DE2709523A1 (en) * 1976-03-08 1977-10-27 Keltrol Enterprises Inc EXTRUDER

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