Device for making filtrations through cap paper by means of a pneumatic engine
Date
11 February 1685
Creator
Unknown, Artist
Object type
Archive reference number
Manuscript page number
p208
Material
Dimensions
height (page): 367mm
width (page): 233mm
width (page): 233mm
Subject
Content object
Description
This is the figure of a device which Denis Papin used at the meeting of the Royal Society on 11 February 1685 to filter sugar water by using a pneumatic engine. Its design was as follows: DD is a shallow vessel full of little holes, covered with linen and cap-paper. DD is inside FF, a vessel containing the liquor to be filtered. A pipe EEE is connected to DD and the receiver AA, so that the liquor must pass through the cap-paper and linen cloth. AA is connected to the pneumatic engine through the pipe CCC and a plate GG. Through the suction of the air, the liquid at FF is filtered through DD into the vessel AA.
This figure is copied at RBC/6/162.
This figure is copied at RBC/6/162.
Object history
11 February 1685, ‘Dr. Papin shewed a way, by which filtrations through cap-paper might be made suddenly and with great quantites of liquor by the help of the pneumatic engine. There being a pipe from the strainer to the exhausted received, the liquor was driven forcibly by the weight of the air. It was tried with a solution of sugar in water, which became very clear’ (Birch 4:366).
Printed in Denis Papin, A continuation of the new digester of bones (London: J. Streater, 1687), fig. 9.
Printed in Denis Papin, A continuation of the new digester of bones (London: J. Streater, 1687), fig. 9.
Related fellows
Denis Papin (1647, French) , Natural philosopher
Associated place