GB1286442A - Improvements in and relating to grinding apparatus - Google Patents
Improvements in and relating to grinding apparatusInfo
- Publication number
- GB1286442A GB1286442A GB342270A GB342270A GB1286442A GB 1286442 A GB1286442 A GB 1286442A GB 342270 A GB342270 A GB 342270A GB 342270 A GB342270 A GB 342270A GB 1286442 A GB1286442 A GB 1286442A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screw
- disc
- screws
- ring
- thread
- 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
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/11—Details
- B02C7/14—Adjusting, applying pressure to, or controlling distance between, discs
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Crushing And Grinding (AREA)
Abstract
1286442 Disc mills DEFIBRATOR AB 23 Jan 1970 [19 Feb 1969] 3422/70 Heading B2A A disc mill comprises a stationary disc adjusted by a differential screw jack. The mill comprises the usual rotatable disc 14, Fig. 1, driven by a shaft 12 in a casing 10, and provided with a feed screw 24. The disc 14 :has three annular grinding elements 16, 18, 22. The stationary disc comprises concentric stator rings 28, 30 supporting disc elements 32, 34, 36 which may themselves be composed of segments. The outer ring is secured within the casing 10. The inner ring 30 is adjusted by the screw jack arrangement. This comprises pairs of screws 38, 48 concentrically arranged. In each case the inner screw 48 has a thread 50 cooperating with an internal thread 52 on the outer screw 38. The screw 48 bears on the stator ring 30. The inner screw is fixed against rotation and has a coarser thread than the outer screw. The rear space 92 behind the stator ring is pressurized with water supplied via a pipe 90 and controlled by a pressure confroller 102. When a gear ring 64 is rotated the screws 38 are turned and the inner screws 48 are axially displaced by an amount equal to the pitch difference of the two sets of threads. The pressure fluid relieves the screws from the effect of grinding pressure.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE231169A SE341522B (en) | 1969-02-19 | 1969-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1286442A true GB1286442A (en) | 1972-08-23 |
Family
ID=20259728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB342270A Expired GB1286442A (en) | 1969-02-19 | 1970-01-23 | Improvements in and relating to grinding apparatus |
Country Status (8)
| Country | Link |
|---|---|
| CA (1) | CA920854A (en) |
| CS (1) | CS165338B2 (en) |
| FI (1) | FI49335C (en) |
| FR (1) | FR2037391A5 (en) |
| GB (1) | GB1286442A (en) |
| NO (1) | NO129805B (en) |
| RO (1) | RO55647A (en) |
| SE (1) | SE341522B (en) |
-
1969
- 1969-02-19 SE SE231169A patent/SE341522B/xx unknown
-
1970
- 1970-01-23 GB GB342270A patent/GB1286442A/en not_active Expired
- 1970-01-29 FI FI25570A patent/FI49335C/en active
- 1970-02-04 CA CA073981A patent/CA920854A/en not_active Expired
- 1970-02-09 NO NO44770A patent/NO129805B/no unknown
- 1970-02-13 CS CS104170A patent/CS165338B2/cs unknown
- 1970-02-18 FR FR7005848A patent/FR2037391A5/fr not_active Expired
- 1970-02-19 RO RO6250770A patent/RO55647A/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2037391A5 (en) | 1970-12-31 |
| FI49335C (en) | 1975-05-12 |
| NO129805B (en) | 1974-05-27 |
| DE2002735B2 (en) | 1976-11-04 |
| CA920854A (en) | 1973-02-13 |
| SE341522B (en) | 1971-12-27 |
| RO55647A (en) | 1973-10-20 |
| CS165338B2 (en) | 1975-12-22 |
| DE2002735A1 (en) | 1970-09-03 |
| FI49335B (en) | 1975-01-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |