[22] Polytechnic Central Journal, 1838.
[23] We here introduce to the reader our ingenious and scientific country man, Mr. Joseph Saxton, formerly of the United States mint, Philadelphia, but now connected with the Department of weights and measures, at Washington, who invented the first Rotary Magneto Electric Machine, and which has now been extensively adopted.
[24] M. M. Nobili and Antinori.
[25] Mr. Saxton on the 3d of May exhibited his apparatus, and the mode of obtaining the spark to Dr. Ritchie, Messrs. Thomas Gill, John Isaac Hawkens and Steadman Whitwell. On the 8th of May he loaned it to Dr. Ritchie, who publicly exhibited it at a lecture, at the London University, and also at the London Institution, Finsbury.
[26] In relation to this instrument, Prof. Daniell makes the following remarks: “After Dr. Faraday’s discovery of Volta electric and magneto electric induction, many ingenious contrivances were made for exalting the effects and facilitating experiments. The most complete arrangement now in use, was the original combination of Mr. Saxton.”
[27] From the Polytechnic Central Journal, 1838, Nos. 31, 32.
[28] From the Polytechnic Central Journal, 1838.
[29] A day’s work of a fair compositor in setting up type is 6,000 ems, equivalent to 12,000 pieces, in ten hours, or 20 pieces per minute. A very quick and expert compositor may set up 10,000 in the same time, equal to 20,000 pieces, or 33⅓ pieces per minute. One em is equivalent to about two pieces.
[30] The author has recently devised a new plan for printing with type, in which the pendulum movement is dispensed with, and the motion of the type wheel is dependent upon the control and government of certain apparatus at the transmitting station. This controlling part is capable of giving to the type wheel a most rapid movement, and from an estimate made from some actual tests, the number of letters capable of being printed, are increased much beyond the former plan, taking the message already used as an example. Still he considers it inferior to that mode, now adopted by Professor Morse.
[31] Mr. Vail invented an instrument with this arrangement 16 years ago, for the purpose of printing speeches as fast as delivered.