TY - JOUR
AU - 
AB - July, 1879.] Dy~amo-Etectric Machines. 59 THE REACTION PRINCIPLE OF DYNAMO-ELECTRIC MACHINES. By PROFS. EDWIn" J. tIOUSTON and ELIHU THOMSON. The honor of the discovery of dm reaction principle of dynamo- electric machines is very generally accredited, as independent inventions~ to Siemens, Wheatstone and Varley, but accorded by priority of pub- llcatiou to Siemens. The idea of applying currents, generated by a magneto-electric machine, to the strengthening of its own magnets, appem~ to have been discovered as early as 1855, as will tie seen. It appears from the records oi' the British Patents that one Soren Hjorth, of Copenhagen, filed an application for letters patent for the invention of "An improved electric battery," as he styled it. The application was sealed the 28th of September, 1855, and dated April llth, 1855. The following quotations from the completed specification will suffice to show the nature of the invention. * * * "Various attempt~s have been made to produce electricity by means of armatures brought in succession within the action of per- manent magnets. Now my invention consists in certain improved armngement, s for producing electrlcitv in great qum~tity and intensity by these means. For this purpose, a series of armatures on 
TI - The reaction principle of dynamo-electric machines
JF - Journal of the Franklin Institute
DO - 10.1016/0016-0032(79)90454-x
DA - 1879-07-01
UR - https://www.deepdyve.com/lp/unpaywall/the-reaction-principle-of-dynamo-electric-machines-glTMtAfaMD
DP - DeepDyve
ER -