Allbrit compensating polar planimeter

Allbrit compensating polar planimeter with two sliding bars

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Allbrit compensating polar planimeter with two sliding bars
Science Museum Group
© The Board of Trustees of the Science Museum

Allbrit compensating polar planimeter with two sliding bars [pin & magnifier tracer] weighted arm in wooden case by Stanley, London. Model A8031 & A8032 calibrated for Imperial Measure, with magnifier and serial number, 32390.

Details

Category:
Mathematics
Object Number:
2000-1469
Materials:
brass, steel, glass, wood, felt and incomplete
Measurements:
overall (case): 42 x 428 x 104 mm
type:
planimeter
credit:
Imperial College of Science,Technology & Medicine (Spectroscopy Group)