| Churchill/MCRA 5 contains: |
|---|
| <-- See earlier |
|---|
| 25 |
Switch no. 1 (Pull Switch) |
| 26 |
Switch no. 2 (Pressure Switch) |
| 27 |
Switch no. 3 (Release Switch) |
| 28 |
Air Pressure Switch |
| 29 |
Air Pressure Switch |
| 30 |
Switch no. 8 (A.P Switch) |
| 31 |
Switch no. 9 ('L' Delay) |
| 32 |
Projectiles, fuses, time-delay action mechanism |
| 33 |
Switch no. 9 ('L' Delay) |
| 34 |
Switch no. 9 ('L' Delay) |
| 35 |
T V Switch: long delay, short delay |
| See later --> |
|---|
|
The Papers of Colonel R S Macrae
| Title |
Switch no. 8 (A.P Switch) |
| Reference |
MCRA 5/30 |
| Covering Dates |
Apr 1940-Jan 1947 |
| Extent and Medium |
1 file |
|
| Content and context |
Correspondence on Macrae's patent claim for the switch, designed to make roads impassable by firing cartridges into the foot or a vehicle tyre. |
| No further on-line information. |
|
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