The description and use of Nairne's patent electrical machine : with the addition of some philosophical experiments and medical observations.

  • Edward Nairne
Date:
1783
Catalogue details

Licence: Public Domain Mark

Credit: The description and use of Nairne's patent electrical machine : with the addition of some philosophical experiments and medical observations. Source: Wellcome Collection.

Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.

    18/86 (page 14)
    I '4 ] •4, On the wood of the cufliion are fixed two brafs fcrews, the heads of which are^ to be flipped in between the flits in two pieces of brafs that are foldered to the con- duftor R; then lay the filk K fmooth on the cyhnder A, and part of it will be be- tween the leather of the cufhion and the cylinder. 5. Now gently prefs the cufhion with the filk againft the giafs cylinder A, by moving the Aider F further under the board E, and fixing it there by the fcrew L. It is proper to mention, that the fcrews L L muft not be fcrewed down very hard, as in that cafe they might force off the wooden pieces which form the grooves un- der the board E in which the Aiders Fp move. 6. Hang one of the rings of the chain b on the brafs knob H of the conduftor R, the other end refting on the table. 7. Turn the filk from the glafs cylinder A back on the conduftor R.