GB976372A - Fibrous material and method and apparatus for its production - Google Patents
Fibrous material and method and apparatus for its productionInfo
- Publication number
- GB976372A GB976372A GB4296360A GB4296360A GB976372A GB 976372 A GB976372 A GB 976372A GB 4296360 A GB4296360 A GB 4296360A GB 4296360 A GB4296360 A GB 4296360A GB 976372 A GB976372 A GB 976372A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pattern generator
- membrane
- feb
- dec
- cavity
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Reciprocating Pumps (AREA)
Abstract
976,372. Making patterns. G. NEIDL. Dec. 14, 1960 [Dec. 29, 1959; Jan. 15, 1960; Feb. 13, 1960; Feb. 18, 1960; March 26, 1960: April 8, 1960], No. 42963/60. Heading B3F. [Also in Divisions B1 B2, B8 and F1] A pattern for making moulds for casting the volute casing of a centrifugal pump is made by the apparatus shown in Fig. 12, comprising a hollow shaft 78 carrying a pattern generator 79 in the form of a pair of parallel discs, a semicircular gap between the peripheries of the discs being covered by an elastic membrane 84. While the pattern generator 79 is slowly rotated by means of a handle 86, compressed air is introduced through the hollow shaft 78 into the interior of the pattern generator to inflate the membrane 84. Material 87, such as plaster, clay or the like, within a container 75 is thus displaced by the expanding membrane 84 to form a cavity 88 which gradually widens in the manner of a volute. Probes 91, Fig. 14, are then pressed into the material until they are flush with the inside surface 95 of the voluteshaped cavity and are used as guides for trimming the material to a uniform thickness 98. Specification 949,461 is referred to.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEN0017700 | 1959-12-29 | ||
DEN17761A DE1173806B (en) | 1960-01-15 | 1960-01-15 | Circulation pump with serrated inclined disk |
DEN0017883 | 1960-02-13 | ||
DEN17905A DE1172541B (en) | 1960-02-18 | 1960-02-18 | Circulation pump with inclined disk and housing in the form of a rotating body and method for manufacturing the housing |
DEN0018644 | 1960-03-26 | ||
DEN0018141 | 1960-04-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB976372A true GB976372A (en) | 1964-11-25 |
Family
ID=27544893
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4296360A Expired GB976372A (en) | 1959-12-29 | 1960-12-14 | Fibrous material and method and apparatus for its production |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE598646R (en) |
FI (1) | FI47599C (en) |
GB (1) | GB976372A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0049450A2 (en) * | 1980-10-02 | 1982-04-14 | Draiswerke GmbH | Mixer for bulk goods, especially for fibrous suspensions |
GB2195911A (en) * | 1986-10-08 | 1988-04-20 | Ingersoll Rand Co | Screening apparatus for pulp |
-
1960
- 1960-12-14 GB GB4296360A patent/GB976372A/en not_active Expired
- 1960-12-17 FI FI206960A patent/FI47599C/en active
- 1960-12-29 BE BE598646A patent/BE598646R/en active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0049450A2 (en) * | 1980-10-02 | 1982-04-14 | Draiswerke GmbH | Mixer for bulk goods, especially for fibrous suspensions |
EP0049450A3 (en) * | 1980-10-02 | 1983-04-20 | Draiswerke Gmbh | Mixer for bulk goods, especially for fibrous suspensions |
GB2195911A (en) * | 1986-10-08 | 1988-04-20 | Ingersoll Rand Co | Screening apparatus for pulp |
Also Published As
Publication number | Publication date |
---|---|
FI47599B (en) | 1973-10-01 |
BE598646R (en) | 1961-04-14 |
FI47599C (en) | 1974-01-10 |
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