A double airpump
Date
1676
Creator
Denis Papin (1647, French) , Natural philosopher
Object type
Archive reference number
Manuscript page number
p3
Material
Dimensions
height (page): 297mm
width (page): 190mm
width (page): 190mm
Subject
Content object
Description
A drawing of a double airpump designed by Denis Papin for Robert Boyle.
Two pumps made of brass (AA) contain two hollow plugs (BB) which are open below. In the upper part of these plugs are two holes (CC) with valves opening outwards, only to let the air go out. DD are iron rods, joined to BB on one end, and on the other end to EE, which are two flat irons large enough for an operator to stand on. GG is a cord joined to the two stirrups and fitted around a pulley, H. LL are two valves at the bottom of the pumps, opening inwardly to let the air out of the tube (MM), which connects both pumps to plate OO on which the receivers (R) to be evacuated are placed. Water is poured through Q to fill up the cavities, and then an operator steps on the stirrups alternately to evacuate air from R.
The instrument was depicted and described in Robert Boyle, Experimentorum novorum physico-mechanicorum continuatio secunda (1680).
Two pumps made of brass (AA) contain two hollow plugs (BB) which are open below. In the upper part of these plugs are two holes (CC) with valves opening outwards, only to let the air go out. DD are iron rods, joined to BB on one end, and on the other end to EE, which are two flat irons large enough for an operator to stand on. GG is a cord joined to the two stirrups and fitted around a pulley, H. LL are two valves at the bottom of the pumps, opening inwardly to let the air out of the tube (MM), which connects both pumps to plate OO on which the receivers (R) to be evacuated are placed. Water is poured through Q to fill up the cavities, and then an operator steps on the stirrups alternately to evacuate air from R.
The instrument was depicted and described in Robert Boyle, Experimentorum novorum physico-mechanicorum continuatio secunda (1680).
Object history
Printed in Robert Boyle, Experimentorum novorum physico-mechanicorum continuatio secunda (London: M. Flesher for R. Davis, 1680), iconismus 1.
Related fellows
Denis Papin (1647, French) , Natural philosopher
Robert Boyle (1627 - 1691, British) , Natural philosopher
Robert Boyle (1627 - 1691, British) , Natural philosopher
Associated place