About this detail of the Tiger
The standard gyrocompass for tanks was provided with a seating ring. This is the ring as originally found in the Bovington Museum Tiger.
This drawing shows how the gyrocompass was attached; the ring had two spheres which the gyro would sit upon, and a double hook at the top that would engage with spring-loaded teeth on the gyro.
In the Tiger 1, the ring was screwed into a sheet-metal stand that was specific to this tank. This diagram shows the stand.
A threaded cylinder was welded to the floor in front of the stand, as shown above. When the gyro was absent from the tank, its electrical connector was screwed to this to prevent damage and short circuits. The connector normally protruded through the square hole in the stand.
The stand was in the front of the left-hand sponson, beside the forward ammunition bin. This diagram shows the view from the driver's position.
This diagram shows the position of the stand relative to the hull walls. The stand is angled at 45 degrees.
[1] Survey of Tiger 250122, at Bovington museum, by David Byrden