air pump plate

Date1830-1850

Inventory Number1996-1-0348

ClassificationAir Pump Accessory

Subject

Maker L. Golaz 1830 - 1884

Cultural Region

Place of Origin

Dimensions15 × 26 × 30.5 cm (5 7/8 × 10 1/4 × 12 in.)

Material

DescriptionA square plate is supported by four turned feet. In the center of the plate is a hole and the opening of tube that goes to one side where there is a nozzle and a stopcock.

Signedbelow stopcock: Maison / L. Golaz / [Breveté] s.g.d.g. / [address illegible] / Paris

FunctionThis is the base on which a glass jar would have been set upon. The nozzle was linked to a hand pump (such as 1996-1-0305 or 1996-1-0306) by a rubber tube. Air could then be added or removed from the jar in order to perform a vast array of pneumatic experiments. The stopcock above the nozzle was used to control the flow of air coming in and going out of the jar.