Mahogany cased barograph
c. 1890 England
Offered by Shackladys Antiques
£1,100
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Mahogany cased barograph, having five glazed removable lid, and a drawer below to house the charts. The mechanical eight-day movement is housed in the drum, fitted with a seven-day chart which covers one full rotation of the drum. The ink trace, or barogram, on the recording paper is a visual record of changes in pressure.
The aneroid barometer mechanism has eight stacked vacuum capsules and utilises a gate suspension, a refinement developed to improve sensitivity. The barograph has its original glass ink bottle recessed into the case.
Dimensions
Height 8.5 Inches
Width 14.5 Inches
Depth 9 Inches
The aneroid barometer mechanism has eight stacked vacuum capsules and utilises a gate suspension, a refinement developed to improve sensitivity. The barograph has its original glass ink bottle recessed into the case.
Dimensions
Height 8.5 Inches
Width 14.5 Inches
Depth 9 Inches
Dimensions
| Height | 8.50 inch | (21.59 cm) |
| Width | 14.50 inch | (36.83 cm) |
| Depth | 9.00 inch | (22.86 cm) |
Shackladys Antiques
Shackladys Antiques
34 Spital Walk
Boughton
Chester
Cheshire
CH3 5DB
