A digester for distillation in vacuo
Date
21 & 28 April 1686
Creator
Unknown, Artist
Object type
Archive reference number
Manuscript page number
p3
Material
Dimensions
height (page): 310mm
width (page): 185mm
width (page): 185mm
Subject
Content object
Description
Design of Denis Papin's modified digester, printed in his A continuation of the new digester (1687), fig. 12. Papin showed the modified digester to the Royal Society on 28 April 1686. Papin describes its use as follows (ibid., pp. 41-42): the lower cylinder (AB) was filled with lemon peels, the top (HH) was secured on it, and air was exhausted from the cock MM. Then the cylinder was turned upside-down and heated, after which there was a good quantity of liquor which had the same smell as the peels. Papin notes that he had also made similar trials with quinces.
Object history
At the meeting of the Royal Society on 20 April 1686, ‘Dr. Papin gave in a description of an improvement of his new digester for distillation in vacuo, which he said he would produce before the Society at their next meeting’ (Birch 4:479).
28 April 1686, ‘Dr. Papin gave a paper concerning his method of distilling in vacuo, which upon trial was found to succeed very well, and was judged to distill faster than air’ (Birch 4:480).
The account is registered at RBO/6/311-12, with an instruction 'See its Figure pag. 315', but page 315 is left blank.
Printed in Denis Papin, A continuation of the new digester of bones (London: J. Streater, 1687), fig. 12.
28 April 1686, ‘Dr. Papin gave a paper concerning his method of distilling in vacuo, which upon trial was found to succeed very well, and was judged to distill faster than air’ (Birch 4:480).
The account is registered at RBO/6/311-12, with an instruction 'See its Figure pag. 315', but page 315 is left blank.
Printed in Denis Papin, A continuation of the new digester of bones (London: J. Streater, 1687), fig. 12.
Related fellows
Denis Papin (1647, French) , Natural philosopher
Associated place