GB1297658A - - Google Patents
Info
- Publication number
- GB1297658A GB1297658A GB1297658DA GB1297658A GB 1297658 A GB1297658 A GB 1297658A GB 1297658D A GB1297658D A GB 1297658DA GB 1297658 A GB1297658 A GB 1297658A
- Authority
- GB
- United Kingdom
- Prior art keywords
- structures
- limbs
- welded
- pole shoes
- portions
- 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
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H7/00—Brakes with braking members co-operating with the track
- B61H7/02—Scotch blocks, skids, or like track-engaging shoes
- B61H7/04—Scotch blocks, skids, or like track-engaging shoes attached to railway vehicles
- B61H7/06—Skids
- B61H7/08—Skids electromagnetically operated
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Clocks (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
1297658 Magnetic brakes; track brakes KNORR-BREMSE GmbH 4 Dec 1970 [4 Dec 1969]. 57829/70 Heading F2E [Also in Division H2] A magnetic brake for a rail vehicle includes a coil for exciting first and second magnet structures 4 which structures 4 act with the rail to produce a braking effect by friction or by eddy current action and are arranged one after the other in a direction along the rail when the brake is mounted on the vehicle, the two structures 4 having respective portions 6, 7 which engage with one another to prevent tilting of the structures 4 during braking. In the embodiment of Fig. 1 the two structures 4 (these being merely representative of a number of identical structures arranged in line) are of U- shape in cross-section and have limbs 5 which engage over an oval coil box 1; the structures 4 are separated by one of a number of partitions 3 arranged in an opening 2 of the coil box 1. Each limb 5 of the magnet structures 4 has a bearing surface 6 which bears on an end portion 7 of the adjacent magnet structure 4. This arrangement prevents the structures 4 from tilting during braking but allows the end faces 8 of the structures 4 to bear fully on a rail surface 9 to effect braking. In Fig. 2 is illustrated a U-shaped magnet structure 10 comprising limbs 11 and 12 juxtaposed to individual limbs 13, 14 of further magnet structures. Triangular pole shoes 15, 16, 15<SP>1</SP>, 16<SP>1</SP> are welded to the limbs 11, 12, 13, 14 and elongate members 17, 18, 17<SP>1</SP>, 18<SP>1</SP> made of non-magnetic material are welded to an edge of the pole shoes. Each limb 11, 12, 13, 14 is provided with a bearing surface 19 for a projecting end portion of an elongate member 17 or 18 at a pole shoe on the other limb of the magnet structure. The bearing surfaces 19 of the magnet structure 10 respectively co-operate with bearing portions of adjacent pole shoes 151, 16<SP>1</SP>. The bearing surfaces 19 are reduced in size by bevelled surfaces 20, 21. The pole shoes are shown as triangular but they could alternatively be rectangular with the elongate non-magnetic members angled to enable them to be welded along two rectangle edges of the pole shoe. The embodiment of Fig. 2 utilizes eddy current effects for braking as does the embodiment of Fig. 3. In Fig. 3 the two limbs 26, 27 of a U-shaped magnet structure 25 are screwed to one another in the web portion and these limbs 26, 27 are inserted in the oval opening of a coil box. The end portions of the limbs have welded thereto by weld seams, e.g. 35, pole shoes 28, 29 to which are welded by weld seams 37, 38 elongate members 33 made of a non-magnetic material with frictional surfaces. The pole shoes 28, 29 project laterally beyond the limbs 26, 27 and bearing portions of the pole shoes lie on narrowed portions 30 of the end faces of respective neighbouring limbs of the same polarity and act to prevent tilting of the structures. Flat support elements 34 which provide additional bearing surface area adjoining the narrowed portions 30 are welded laterally on to limbs 26, 27.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691960946 DE1960946C (en) | 1969-12-04 | Magnetic rail brake and process for their manufacture |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1297658A true GB1297658A (en) | 1972-11-29 |
Family
ID=5753025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1297658D Expired GB1297658A (en) | 1969-12-04 | 1970-12-04 |
Country Status (5)
Country | Link |
---|---|
AT (1) | AT305362B (en) |
CH (1) | CH523163A (en) |
FR (1) | FR2077545B1 (en) |
GB (1) | GB1297658A (en) |
SE (1) | SE363283B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112222584A (en) * | 2020-09-08 | 2021-01-15 | 湘潭大学 | Double-transverse magnetic field magnetic control micro-beam plasma arc welding seam tracking method for welding ultrathin-wall pipe |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1091700B (en) * | 1977-11-23 | 1985-07-06 | Wabco Westinghouse Spa | ELECTROMAGNETIC SHOE BRAKE FOR RAIL VEHICLES |
DE102017006734B4 (en) * | 2017-07-17 | 2020-07-30 | Knorr-Bremse Gesellschaft Mit Beschränkter Haftung | Link magnetic rail brake device of a rail vehicle with extended legs |
-
1970
- 1970-12-01 CH CH1779170A patent/CH523163A/en not_active IP Right Cessation
- 1970-12-03 SE SE1638870A patent/SE363283B/xx unknown
- 1970-12-03 FR FR7043473A patent/FR2077545B1/fr not_active Expired
- 1970-12-03 AT AT1089570A patent/AT305362B/en not_active IP Right Cessation
- 1970-12-04 GB GB1297658D patent/GB1297658A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112222584A (en) * | 2020-09-08 | 2021-01-15 | 湘潭大学 | Double-transverse magnetic field magnetic control micro-beam plasma arc welding seam tracking method for welding ultrathin-wall pipe |
Also Published As
Publication number | Publication date |
---|---|
DE1960946B2 (en) | 1972-07-27 |
FR2077545B1 (en) | 1977-01-21 |
SE363283B (en) | 1974-01-14 |
AT305362B (en) | 1973-02-26 |
CH523163A (en) | 1972-05-31 |
FR2077545A1 (en) | 1971-10-29 |
DE1960946A1 (en) | 1971-06-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |