IMPROVEMENTS IN OR RELATING TO INJECTION MOULDING
1,253,539. Injection moulding. WELLMAN ENG. CORP. Ltd. 3 Dec., 1969 [5 Sept., 1968], No. 42356/68. Heading B5A. An injection mould cavity 13 is evacuated through one or more passages 17, the or each passage containing an ejector pin 19 which is operable by means of a rod 25. The pin 19 may carry a v...
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| creator | JOHN ANDREW NAISMITH |
| description | 1,253,539. Injection moulding. WELLMAN ENG. CORP. Ltd. 3 Dec., 1969 [5 Sept., 1968], No. 42356/68. Heading B5A. An injection mould cavity 13 is evacuated through one or more passages 17, the or each passage containing an ejector pin 19 which is operable by means of a rod 25. The pin 19 may carry a valve head 22 which is normally held clear of its seating 21 by means of a spring 30 adjustable by a screw 31. Suction is applied through a duct 32 in a gas-tight chamber 14 and air may be blown in through the duct 32 and passage 17 to assist ejection of the moulded article. |
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An injection mould cavity 13 is evacuated through one or more passages 17, the or each passage containing an ejector pin 19 which is operable by means of a rod 25. The pin 19 may carry a valve head 22 which is normally held clear of its seating 21 by means of a spring 30 adjustable by a screw 31. Suction is applied through a duct 32 in a gas-tight chamber 14 and air may be blown in through the duct 32 and passage 17 to assist ejection of the moulded article.</description><language>eng</language><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; PERFORMING OPERATIONS ; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR ; SHAPING OR JOINING OF PLASTICS ; TRANSPORTING ; WORKING OF PLASTICS ; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</subject><creationdate>1971</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19711117&DB=EPODOC&CC=GB&NR=1253539A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19711117&DB=EPODOC&CC=GB&NR=1253539A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>JOHN ANDREW NAISMITH</creatorcontrib><title>IMPROVEMENTS IN OR RELATING TO INJECTION MOULDING</title><description>1,253,539. 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Injection moulding. WELLMAN ENG. CORP. Ltd. 3 Dec., 1969 [5 Sept., 1968], No. 42356/68. Heading B5A. An injection mould cavity 13 is evacuated through one or more passages 17, the or each passage containing an ejector pin 19 which is operable by means of a rod 25. The pin 19 may carry a valve head 22 which is normally held clear of its seating 21 by means of a spring 30 adjustable by a screw 31. Suction is applied through a duct 32 in a gas-tight chamber 14 and air may be blown in through the duct 32 and passage 17 to assist ejection of the moulded article.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL |
| title | IMPROVEMENTS IN OR RELATING TO INJECTION MOULDING |
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