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GB1071340A - Improvements in or relating to apparatus for making gramophone records - Google Patents

Improvements in or relating to apparatus for making gramophone records

Info

Publication number
GB1071340A
GB1071340A GB353065A GB353065A GB1071340A GB 1071340 A GB1071340 A GB 1071340A GB 353065 A GB353065 A GB 353065A GB 353065 A GB353065 A GB 353065A GB 1071340 A GB1071340 A GB 1071340A
Authority
GB
United Kingdom
Prior art keywords
record
die
released
gap
gramophone
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
GB353065A
Inventor
Alan Phillipson
Basil Harry Royston Spiller
Robin Smith
Harry Cheesman
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.)
Decca Ltd
Original Assignee
Decca 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 Decca Ltd filed Critical Decca Ltd
Priority to GB353065A priority Critical patent/GB1071340A/en
Priority to FR44162A priority patent/FR1462057A/en
Priority to DE19661629347 priority patent/DE1629347A1/en
Priority to NL6600992A priority patent/NL6600992A/xx
Priority to SE99466A priority patent/SE320789B/xx
Publication of GB1071340A publication Critical patent/GB1071340A/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
    • 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
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • B29C45/7306—Control circuits 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
    • 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
    • B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
    • 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
    • B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
    • B29C45/2642—Heating or cooling means 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
    • 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
    • B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
    • B29C2045/2653—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs using two stampers
    • 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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/43—Removing or ejecting moulded articles using fluid under pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

1,071,340. Injection moulding gramophone records. DECCA Ltd. Nov. 23, 1965 [Jan. 27, 1965], No. 3530/65. Heading B5A. A gramophone record is made by a method comprising injecting a material such as that described in Specification 1,071,331 through a nozzle 20 into a gap between a movable die 12 and a fixed die 10, moulding the material as described in Specifications 1,071,332, 1,071,333, 1,071,334 and 1,071,335, and then removing the die 12 with the record attached thereto, air being injected in synchronism with the movement of the die 12 through six orifices 32, each of one thousandth of an inch diameter, into the gap between the record and the fixed die 10 to break the vacuum. The dies are maintained at the same temperature (65‹ F. at the inner periphery, 120‹ F. at the outer) by water circulating through annular channels 23, 25, 28 therein the record is removed by ejector pins 21 which withdraw automatically as soon as the record is released by a method described and claimed in Specification 1,071,341. Attraction of the released record to either die due to electrostatic forces is obviated by blowing ionized air over the record, as described and claimed in Specification 1,071,337. The record may be embossed with a sound track or may be a blank disc for use in a two-part process by use of suitable matrices 14, 15.
GB353065A 1965-01-27 1965-01-27 Improvements in or relating to apparatus for making gramophone records Expired GB1071340A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB353065A GB1071340A (en) 1965-01-27 1965-01-27 Improvements in or relating to apparatus for making gramophone records
FR44162A FR1462057A (en) 1965-01-27 1965-12-29 Improvements in apparatus for making phonographic records
DE19661629347 DE1629347A1 (en) 1965-01-27 1966-01-20 Process for making gramophone records and injection molding machine for practicing the process
NL6600992A NL6600992A (en) 1965-01-27 1966-01-26
SE99466A SE320789B (en) 1965-01-27 1966-01-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB353065A GB1071340A (en) 1965-01-27 1965-01-27 Improvements in or relating to apparatus for making gramophone records

Publications (1)

Publication Number Publication Date
GB1071340A true GB1071340A (en) 1967-06-07

Family

ID=9760070

Family Applications (1)

Application Number Title Priority Date Filing Date
GB353065A Expired GB1071340A (en) 1965-01-27 1965-01-27 Improvements in or relating to apparatus for making gramophone records

Country Status (5)

Country Link
DE (1) DE1629347A1 (en)
FR (1) FR1462057A (en)
GB (1) GB1071340A (en)
NL (1) NL6600992A (en)
SE (1) SE320789B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3619449A (en) * 1966-11-29 1971-11-09 Pathe Marconi Ind Music Methods of manufacturing gramophone records
JPS56139940A (en) * 1977-10-31 1981-10-31 Mca Disco Vision Projection molding machine for optical record
EP0051252A3 (en) * 1980-10-31 1983-04-20 Discovision Associates Hot sprue valve assembly for an injection molding machine
US4405540A (en) 1980-10-31 1983-09-20 Discovision Associates Hot sprue valve assembly for an injection molding machine
WO1992008597A1 (en) * 1990-11-09 1992-05-29 Gpt Axxicon B.V. Injection mould

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL193077C (en) * 1977-10-31 1998-09-08 Mca Disco Vision Injection molding device.
FR2600933B1 (en) * 1986-07-04 1988-12-09 Boussois Sa PROCESS FOR THE MANUFACTURE OF A GLAZING COMPRISING A THERMOFUSIBLE RESIN JOINT OVERMOLDED AROUND ITS PERIPHERY AND GLASS THUS OBTAINED

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3619449A (en) * 1966-11-29 1971-11-09 Pathe Marconi Ind Music Methods of manufacturing gramophone records
JPS56139940A (en) * 1977-10-31 1981-10-31 Mca Disco Vision Projection molding machine for optical record
JPS62275728A (en) * 1977-10-31 1987-11-30 デイスコビジヨン　アソシエイツ Cooling device for injection molding machine
EP0051252A3 (en) * 1980-10-31 1983-04-20 Discovision Associates Hot sprue valve assembly for an injection molding machine
US4405540A (en) 1980-10-31 1983-09-20 Discovision Associates Hot sprue valve assembly for an injection molding machine
WO1992008597A1 (en) * 1990-11-09 1992-05-29 Gpt Axxicon B.V. Injection mould
US5324190A (en) * 1990-11-09 1994-06-28 Gpt Axxicon B.V. Injection mould for manufacturing disc-shaped plastic articles

Also Published As

Publication number Publication date
NL6600992A (en) 1966-07-28
SE320789B (en) 1970-02-16
DE1629347A1 (en) 1971-02-04
FR1462057A (en) 1966-12-09

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