Short & Mason Barograph
Fine example of an early to mid 20th Century Barograph of the highest quality manufactured by Short and Mason. The Barograph is housed in a dark stained oak case with glass panels, raised on four turned feet with a sectional drawer to hold new and used charts. The workings are gilt brass and the mechanical eight-day clock movement is housed in the drum, fitted with a seven day chart which covers one rotation of the drum.The aneroid barometer mechanism has 12 stacked vacuum capsules and utilises a gate suspension for improved sensitivity. There is a nib on the end of a long arm which moves to record the pressure.
It comes with about 35 gummed charts, enough for 35 weeks of recording. It has its original glass ink bottle recessed into the case. Extra charts and ink are both readily available to buy online.
The case measures approximately 14 1/2" wide by 9" deep and 9" tall. The drum has a diameter of 4" (10cm).
The clockwork mechanism is in good working order and although I have not referenced the readings against a chart for accuracy it appears to be in working order. It will of course need calibrating and setting up to the correct pressure when it arrives with you.
It is in excellent condition for its age and has clearly been very well looked after. There are small marks and light scratches here and there on the wooden case commensurate with age but there is no major damage to report. The whole piece displays very nicely and looks very impressive.
The best description I can give comes from the photos so please look at them all carefully and if you have any questions please ask