Slide rules HOME page COLLECTION SPECIALISED RULES
Make Made for The Globe Tank and Foundry (Wolverhampton) Ltd
Model Tank capacity calculator
Notes

1. This specialised rule was for the calculation of the volume of circular or rectangular tanks.
2. The detailed image below show the calculation for a tank 3 feet long, by 4 feet wide, by 4 feet deep. The volume is 300 imperial gallons.

Front view
9909-tanks01.jpg (14151 bytes)

Detail  - rectangular tank calculations
9909-tanks02.jpg (22351 bytes)
Manufacturing date Not known but probably around 1960
Length 6"
Material Plastic
Scales Non-standard
Cursor None required
Documentation None but none required
Condition Good working order