GB491114A - Improvements in or relating to electric contact making relays - Google Patents
Improvements in or relating to electric contact making relaysInfo
- Publication number
- GB491114A GB491114A GB2149237A GB2149237A GB491114A GB 491114 A GB491114 A GB 491114A GB 2149237 A GB2149237 A GB 2149237A GB 2149237 A GB2149237 A GB 2149237A GB 491114 A GB491114 A GB 491114A
- Authority
- GB
- United Kingdom
- Prior art keywords
- poles
- magnet
- parts
- armature
- relay
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 6
- 229910052742 iron Inorganic materials 0.000 abstract 3
- 230000004907 flux Effects 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000003137 locomotive effect Effects 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/02—Electric devices associated with track, e.g. rail contacts
- B61L1/08—Electric devices associated with track, e.g. rail contacts magnetically actuated; electrostatically actuated
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Railway Tracks (AREA)
- Toys (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
491,114. Magnetic relays. GREENLY, H. Aug. 4, 1937, No. 21492. Addition to 473,589. [Class 38 (v)] In an inductor relay of the type described in the parent Specification, having an armature with two parts 1, 2 pivoted at 4 and connected at 3 by a knuckle or like joint, the bearings 4 which may be steel ball bearings are magnetically screened from the magnetic field of the actuating magnet 9. This may be effected by means of two parallel bars or strips 8 of iron arranged as shown with the ends of the parts 1, 2 free of them so as to be influenced by the poles 9. In the form shown, the relay is operated by the deflection of magnetic flux caused by the passing of the wheel 12 of a locomotive or truck. The magnet 9 has a pair of double poles and a plate 11 of soft iron fits closely against the outer pair of poles to assist the dissipation of magnetic flux. When the attraction of the poles 9 for the armature weakens, its two parts are attracted downwards by a magnet 10 or by springs and contacts 5, 7 closed. The armature is mounted on a carriage 18 that is adjustably slidable and the magnet 10 is also adjustable. In a modification, Fig. 2 (not shown), the relay is operated by a magnetic member passing between the main part of a magnet and its poles which are separated from the main part by air gaps. The two parts 1, 2 may be of skeleton formation, each being formed of two thin iron plates welded or riveted together at the ends and embracing a pivot pin at their centre, Fig. 5 (not shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2149237A GB491114A (en) | 1937-08-04 | 1937-08-04 | Improvements in or relating to electric contact making relays |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2149237A GB491114A (en) | 1937-08-04 | 1937-08-04 | Improvements in or relating to electric contact making relays |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB491114A true GB491114A (en) | 1938-08-26 |
Family
ID=10163854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2149237A Expired GB491114A (en) | 1937-08-04 | 1937-08-04 | Improvements in or relating to electric contact making relays |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB491114A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1276169B (en) * | 1958-04-30 | 1968-08-29 | Elek Scher App Fab | Magnetic switch |
-
1937
- 1937-08-04 GB GB2149237A patent/GB491114A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1276169B (en) * | 1958-04-30 | 1968-08-29 | Elek Scher App Fab | Magnetic switch |
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