Tarrant Hydraulic Slide Rule

Made:
1960-1962 in United Kingdom
Tarrant Hydraulic Slide Rule

Tarrant Hydraulic Slide Rule
Science Museum Group
© The Board of Trustees of the Science Musuem

A "Janus Series" Tarrant hydraulic slide rule for calculating the flow of water in pipes and circular sewers, made by Blundell Rules.

Details

Category:
Mathematics
Object Number:
Y1999.71.4
Materials:
cardboard, metal (unknown), plastic (unidentified) and textile
Measurements:
slide rule: 10 mm x 337 mm x 57 mm,
case: 20 mm x 341 mm x 70 mm,
type:
slide rule
taxonomy:
  • furnishing and equipment
  • tools & equipment
  • calculator
credit:
Gift of Ralph Whitehead