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Slide Rule

Technical Information

Catalogue No: C1678
Category: General Purpose
Object Type: Test Equipment
Object Name: Slide Rule
Part No: None
Serial No: None
Manufacturer: Blundell Harling
Division: Unknown
Year of Manufacture: Unknown
Dimensions: Width (mm): 330
Height (mm): 48
Depth (mm): 15
Weight (g): 78
Location: Cupboard 1 (awards) [Main Store]

Fisher Controls
Rochester England
Reverse Side
Fisher Control Valve Sizing Rule Mark VIII

Blundell Harling Ltd Weymouth England P4743


One of special slide rules donated by Mr. John Bradley, formerly of Fisher Control Valves. It was used in the period 1950-1980 in the design and sizing of Oil Control Valves.
The rule comes in a leather case and with an instruction manual.

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