GB838475A - Rubber mixer - Google Patents
Rubber mixerInfo
- Publication number
- GB838475A GB838475A GB19155/58A GB1915558A GB838475A GB 838475 A GB838475 A GB 838475A GB 19155/58 A GB19155/58 A GB 19155/58A GB 1915558 A GB1915558 A GB 1915558A GB 838475 A GB838475 A GB 838475A
- Authority
- GB
- United Kingdom
- Prior art keywords
- door
- support
- springs
- bolts
- movement
- 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
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/26—Component parts, details or accessories; Auxiliary operations for discharging, e.g. doors
- B29B7/263—Component parts, details or accessories; Auxiliary operations for discharging, e.g. doors from the underside in mixers having more than one rotor and a a casing closely surrounding the rotors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
838,475. Rubber-mixing machines; discharging doors. FARREL-BIRMINGHAM CO. Inc. June 16, 1958 [Jan. 21, 1958], No. 19155/58. Addition to 774,651. Class 86 The rubber mixer described in the parent Specification has the discharge opening of the mixing chamber 20 closed by a door 23 yieldingly mounted for movement relative to its support 24. To control the movement, springs are now introduced between the abutting faces of the door and its support. The springs 34, Figs. 2 and 3, may be placed between an upstanding rib 33 on the support and downwardly extending flanges of the door, so that the springs hold the door centrally of its support while allowing relative movement during opening and closing of the chamber 20. Strips 41 of low friction material such as nylon may be placed between the door and the support. In an alternative arrangement, Fig. 4, elongated leaf springs 43 of corrugated form are placed in opposed grooves 42 extending along the abutting faces of the door and its support, so that each spring bears at points along its length against the door and against the support and so stresses the two members in opposing directions. The springs and the connecting bolts 37 allow a slight pivotal movement of the door relatively to its support in the plane of the abutting surfaces. Helical springs housed in individual sockets may replace the leaf springs. By tightening the springs 39 on the bolts 37, the helical springs can be stressed as needed. In Fig. 10, the door and its support are hinged together by a pivot pin 55 extending through interlocking knuckles and the springs are placed in recesses 58 in the door 23 and surround the bolts 57. Alternatively the recesses may be in the support and the stressing springs are then omitted from the outer ends of the bolts together with the pivotal connection of the door and support.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US838475XA | 1958-01-21 | 1958-01-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB838475A true GB838475A (en) | 1960-06-22 |
Family
ID=22181073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19155/58A Expired GB838475A (en) | 1958-01-21 | 1958-06-16 | Rubber mixer |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB838475A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1253678B (en) * | 1963-05-25 | 1967-11-09 | Comerio Ercole Spa | Two-part closure flap for working chambers of mixing-kneading machines and like |
-
1958
- 1958-06-16 GB GB19155/58A patent/GB838475A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1253678B (en) * | 1963-05-25 | 1967-11-09 | Comerio Ercole Spa | Two-part closure flap for working chambers of mixing-kneading machines and like |
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