GB309699A - Improvements in or relating to electromagnetic switches - Google Patents
Improvements in or relating to electromagnetic switchesInfo
- Publication number
- GB309699A GB309699A GB749428A GB749428A GB309699A GB 309699 A GB309699 A GB 309699A GB 749428 A GB749428 A GB 749428A GB 749428 A GB749428 A GB 749428A GB 309699 A GB309699 A GB 309699A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ramp
- spring
- hinged
- abutment
- barrel
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
Abstract
309,699. Curtis Automobite Co., Ltd., and Oglethorpe, E. L. March 6, 1928. Animal - carrying vehicles. - In hinged ramps for vehicles of the kind described in Specification 269,752 means are provided for controlling the hinged end of the ramp and for utilizing the weight of the ramp for controlling the lowering. As shown a cord &c. 8 is connected at about the middle point 9 of the ramp 3 passes over a pulley 10 and is connected at its other end to a barrel 12 which is surrounded by a spring 13 within a tube 11. The spring bears at its upper end' against an abutment 14 in the tube 11 and at its lower end against an abutment on the barrel 12. In lowering the ramp 9 is counterbalanced by the compression of the spring which compression also raises the hinged end of the ramp from the position 5 in the bracket 6 to the position 7 where it may be secured by a fastening 15. Weights or other equivalent means may be substituted for the spring. The cords 8 are preferably duplicated at either side of the ramp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB749428A GB309699A (en) | 1928-03-10 | 1928-03-10 | Improvements in or relating to electromagnetic switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB749428A GB309699A (en) | 1928-03-10 | 1928-03-10 | Improvements in or relating to electromagnetic switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB309699A true GB309699A (en) | 1929-04-18 |
Family
ID=9834186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB749428A Expired GB309699A (en) | 1928-03-10 | 1928-03-10 | Improvements in or relating to electromagnetic switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB309699A (en) |
-
1928
- 1928-03-10 GB GB749428A patent/GB309699A/en not_active Expired
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