DE510251C - Pressform fuer Schallplatten - Google Patents
Pressform fuer SchallplattenInfo
- Publication number
- DE510251C DE510251C DEG74899D DEG0074899D DE510251C DE 510251 C DE510251 C DE 510251C DE G74899 D DEG74899 D DE G74899D DE G0074899 D DEG0074899 D DE G0074899D DE 510251 C DE510251 C DE 510251C
- Authority
- DE
- Germany
- Prior art keywords
- insert
- recesses
- records
- grooves
- press mold
- 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
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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
- B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
- B29C33/048—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam using steam
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
- B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB324628A GB305364A (en) | 1928-02-01 | 1928-02-01 | Improvements in moulds for pressing talking machine records |
Publications (1)
Publication Number | Publication Date |
---|---|
DE510251C true DE510251C (de) | 1930-10-17 |
Family
ID=9754699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEG74899D Expired DE510251C (de) | 1928-02-01 | 1928-11-21 | Pressform fuer Schallplatten |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE510251C (fr) |
FR (1) | FR664431A (fr) |
GB (1) | GB305364A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1093576B (de) * | 1957-03-14 | 1960-11-24 | Philips Nv | Pressform zum Heisspressen von Schallplatten aus thermoplastischen Kunststoffen |
DE1176833B (de) * | 1957-03-14 | 1964-08-27 | Philips Nv | Pressform |
-
1928
- 1928-02-01 GB GB324628A patent/GB305364A/en not_active Expired
- 1928-11-21 DE DEG74899D patent/DE510251C/de not_active Expired
- 1928-11-22 FR FR664431D patent/FR664431A/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1093576B (de) * | 1957-03-14 | 1960-11-24 | Philips Nv | Pressform zum Heisspressen von Schallplatten aus thermoplastischen Kunststoffen |
DE1176833B (de) * | 1957-03-14 | 1964-08-27 | Philips Nv | Pressform |
Also Published As
Publication number | Publication date |
---|---|
FR664431A (fr) | 1929-09-03 |
GB305364A (en) | 1929-02-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2657308C3 (de) | Querstrom-Wärmetauscher, mit einer Mehrzahl im wesentlichen identischer Platten, welche parallele Strömungswege bilden | |
DE862757C (de) | Waermeaustauscher, bestehend aus uebereinandergeschichteten, mit Fuehrungsrinnen versehenen Plattenkoerpern | |
EP1306638A2 (fr) | Echangeur de chaleur à plaques sans carter | |
DE3875690T2 (de) | Verdampfer fuer kuehlfluessigkeiten. | |
DE3440064A1 (de) | Oelkuehler | |
DE1704742A1 (de) | Verfahren und Einrichtung zur Herstellung von Schallplatten | |
DE2354843A1 (de) | Heizkoerper fuer raumheizung | |
DE510251C (de) | Pressform fuer Schallplatten | |
DE540918C (de) | Waermeaustauschvorrichtung, bestehend aus einer Anzahl Rahmenelemente, die durch duenne Platten aus Blech getrennt sind | |
DE1934780C3 (de) | Konvektorheizkörper | |
DE2738752C2 (de) | Wärmepumpenanlage | |
AT251988B (de) | Halterungsleiste zur Befestigung von Rohren, Schläuchen oder Leitungen aus Kunststoff oder Metall | |
DE1752852C3 (de) | Verfahren zum Herstellen eines Plattenwärmetauschers | |
DE2239035C3 (de) | Wärmetauscherplatte mit Verteilerflachen | |
DE686776C (de) | Waermeaustauschelement, insbesondere fuer Kaelteanlagen | |
DE3131642C2 (de) | Wärmetauscher für Maische | |
DE937407C (de) | Verfahren zur Herstellung von aus konzentrisch angeordneten Rohren mit zwischen diesen in Nuten der Rohre eingesetzten radialen Stegen bestehenden Waermeaustauschereinheiten | |
DE3004597A1 (de) | Klimakoerper | |
DE2121473A1 (de) | Röhrenwärmeaustauscher | |
DE1451259C3 (de) | Wärmeaustauscher | |
DE2142192C3 (de) | Heißwasser-Radiator | |
DE1513847B2 (de) | Bergwerkstransformator | |
DE733794C (de) | Heizkoerper | |
AT120074B (de) | Form zum Pressen von Sprechmaschinenschallplatten. | |
DE692929C (de) | Waermeaustauscher mit gepressten, auf beiden Seitelatten |