GB1301095A – Improvements in or relating to the production of gramophone records
– Google Patents
GB1301095A – Improvements in or relating to the production of gramophone records
– Google Patents
Improvements in or relating to the production of gramophone records
Info
Publication number
GB1301095A
GB1301095A
GB62991/69A
GB6299169A
GB1301095A
GB 1301095 A
GB1301095 A
GB 1301095A
GB 62991/69 A
GB62991/69 A
GB 62991/69A
GB 6299169 A
GB6299169 A
GB 6299169A
GB 1301095 A
GB1301095 A
GB 1301095A
Authority
GB
United Kingdom
Prior art keywords
moulding
record
mould part
nozzle
mould
Prior art date
1969-03-26
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
GB62991/69A
Inventor
John Ernest Simmons
Walter Leslie Rand
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.)
EMI Ltd
Original Assignee
EMI 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.)
1969-03-26
Filing date
1969-03-26
Publication date
1972-12-29
1969-03-26
Application filed by EMI Ltd
filed
Critical
EMI Ltd
1970-03-18
Priority to NL7003886A
priority
Critical
patent/NL7003886A/xx
1970-03-25
Priority to DE19702014311
priority
patent/DE2014311A1/de
1970-03-25
Priority to FR7010755A
priority
patent/FR2039980A5/en
1970-03-26
Priority to JP2558070A
priority
patent/JPS4836179B1/ja
1972-12-29
Publication of GB1301095A
publication
Critical
patent/GB1301095A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
238000000465
moulding
Methods
0.000
abstract
4
238000002347
injection
Methods
0.000
abstract
2
239000007924
injection
Substances
0.000
abstract
2
239000000463
material
Substances
0.000
abstract
2
238000001746
injection moulding
Methods
0.000
abstract
1
238000000926
separation method
Methods
0.000
abstract
1
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
B29C45/26—Moulds
B29C45/27—Sprue channels ; Runner channels or runner nozzles
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
B29C45/40—Removing or ejecting moulded articles
B29C45/43—Removing or ejecting moulded articles using fluid under pressure
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
B29L2017/00—Carriers for sound or information
B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
B29L2017/003—Records or discs
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
Y10S425/81—Sound record
Abstract
1301095 Moulding gramophone records EMI Ltd 13 March 1970 [26 March 1969 27 Dec 1969] 15700/69 and 62991/69 Heading B5A A machine for the injection moulding of gramophone records comprises a fixed mould part 1 and’an axially movable mould part 2, the mouldable material being fed to the mould cavity between the parts by an injection nozzle 40 having a tip 44 extending into the mould cavity. The front end of a rod 28 extends from the mould part 2 and includes a pin 30, and after an appropriate quantity of moulding material has been injected and during a final moulding step in which the mould parts are brought closer together the nozzle tip and rod end are brought together intermediate the surfaces of a record to form its centre hole. The pin 30 slidably engages the nozzle tip which retains a record label 14. A stamper disc 3 is clamped to a bolster plate 4 by a clamping member 36 through which the nozzle extends in an axially adjustable manner whereby on completion of the moulding operation the nozzle is retracted slightly to allow the introduction of air between the record and stamper 3 via passages 15-18. The air may be under pressure to assist record separation from the mould part 1. A stamper 3 is clamped to a bolster plate 4 of the mould part 2 by a member 5 having an opening 9 closed by a poppet valve 10 urged forwardly by spring washers 12 and whose forward movement is limited by a nut 11. The member 5 is threaded to a member 27 urged rearwardly by means not shown. The rod 28 locates a record label 14 held by suction via passages 15-18. The valve 10 is closed by injection pressure.
GB62991/69A
1969-03-26
1969-03-26
Improvements in or relating to the production of gramophone records
Expired
GB1301095A
(en)
Priority Applications (4)
Application Number
Priority Date
Filing Date
Title
NL7003886A
NL7003886A
(en)
1969-03-26
1970-03-18
DE19702014311
DE2014311A1
(en)
1969-03-26
1970-03-25
FR7010755A
FR2039980A5
(en)
1969-03-26
1970-03-25
Gramophone record mould
JP2558070A
JPS4836179B1
(en)
1969-03-26
1970-03-26
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB1570069
1969-03-26
Publications (1)
Publication Number
Publication Date
GB1301095A
true
GB1301095A
(en)
1972-12-29
Family
ID=10063907
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB62991/69A
Expired
GB1301095A
(en)
1969-03-26
1969-03-26
Improvements in or relating to the production of gramophone records
Country Status (2)
Country
Link
US
(1)
US3671158A
(en)
GB
(1)
GB1301095A
(en)
Cited By (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP0018210A1
(en)
*
1979-04-18
1980-10-29
Discovision Associates
Moulding apparatus for record discs
EP0047645A1
(en)
*
1980-09-05
1982-03-17
Matsushita Electric Industrial Co., Ltd.
A method of producing an information recording disk
US4772196A
(en)
*
1986-02-26
1988-09-20
Kabushiki Kaisha Meiki Seisakusho
Molding apparatus for producing centrally-apertured discs
CN101855054B
(en)
*
2007-11-08
2013-04-24
汉斯·米勒
Device at a hookdraw for moulding and injection moulding tools
Families Citing this family (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3937779A
(en)
*
1972-05-03
1976-02-10
Emi Limited
Moulding of gramophone records
US4379686A
(en)
*
1980-09-15
1983-04-12
Rca Corporation
Apparatus for molding a recorded disc
IT202100001769A1
(en)
*
2021-01-28
2022-07-28
Tibi Bio S R L
PHONOGRAPH RECORD AND PROCESS FOR THE PRODUCTION OF A PHONOGRAPH RECORD
1969
1969-03-26
GB
GB62991/69A
patent/GB1301095A/en
not_active
Expired
1970
1970-03-26
US
US22952A
patent/US3671158A/en
not_active
Expired – Lifetime
Cited By (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP0018210A1
(en)
*
1979-04-18
1980-10-29
Discovision Associates
Moulding apparatus for record discs
EP0047645A1
(en)
*
1980-09-05
1982-03-17
Matsushita Electric Industrial Co., Ltd.
A method of producing an information recording disk
US4472124A
(en)
*
1980-09-05
1984-09-18
Matsushita Electric Industrial Co., Limited
Device for producing an information recording disk
US4772196A
(en)
*
1986-02-26
1988-09-20
Kabushiki Kaisha Meiki Seisakusho
Molding apparatus for producing centrally-apertured discs
CN101855054B
(en)
*
2007-11-08
2013-04-24
汉斯·米勒
Device at a hookdraw for moulding and injection moulding tools
Also Published As
Publication number
Publication date
US3671158A
(en)
1972-06-20
Similar Documents
Publication
Publication Date
Title
ES375083A1
(en)
1972-04-01
Mold-closing means, particularly for die-casting and injection molding machines for metals and synthetics
US3937779A
(en)
1976-02-10
Moulding of gramophone records
GB1301095A
(en)
1972-12-29
Improvements in or relating to the production of gramophone records
US4342717A
(en)
1982-08-03
Injection moulding method and apparatus with mould runner reservoir and shot extension
US4256689A
(en)
1981-03-17
Injection moulding method and apparatus with mould runner reservoir and shot extension
US3767340A
(en)
1973-10-23
Sprue bushing for a single cavity or center sprued mold
JPS5944979B2
(en)
1984-11-02
injection mold
GB1085772A
(en)
1967-10-04
Method of and apparatus for injection moulding of hardenable plastics material
EP1080862B1
(en)
2005-01-19
Cutting apparatus for ingates and method for disc molding
JPH11207749A
(en)
1999-08-03
Holding method of in-die insert part and injection die
GB1220971A
(en)
1971-01-27
An injection moulding machine mould runner sprue ejection device
CN211729977U
(en)
2020-10-23
Structure of in-mold gate self-breaking press-in product
CN214521658U
(en)
2021-10-29
Feeding mechanism of plastic product injection mold with A-level appearance surface and injection mold
US3467985A
(en)
1969-09-23
Apparatus for injection molding of soles onto the bodies of footwear
JPS60247530A
(en)
1985-12-07
Sprue bushing structure for mold
FR2336236A1
(en)
1977-07-22
Hot runner injection moulding heat with a sleeve valve – which closes radial runner gates, for moulding without producing surface gate blemishes
GB646166A
(en)
1950-11-15
Improvements in or relating to injection moulding machines
JPS57163542A
(en)
1982-10-07
Shut-off nozzle for plastic injection molding
JPS5869028A
(en)
1983-04-25
Injection molder and injection molding method
JP3160837B2
(en)
2001-04-25
Disk molding die and molding method thereof
JPH09141698A
(en)
1997-06-03
Injection molding die device
GB1429311A
(en)
1976-03-24
Moulding of apertured articles
GB995243A
(en)
1965-06-16
Improvements relating to injection moulding machines
JPH01180316A
(en)
1989-07-18
Mold for injection molding
JP3297517B2
(en)
2002-07-02
Molding method and molding die for synthetic resin products
Legal Events
Date
Code
Title
Description
1973-05-09
PS
Patent sealed [section 19, patents act 1949]
1978-10-18
PCNP
Patent ceased through non-payment of renewal fee
