Arizona silver belt., 1901-05-30
PHOTOS BY TELEGRAPH.
, picture Wired From New York Reproduced
 in Washington.


 ,,.,rp the Washington Post.
 In the Washington office of the As s,ciatsd Press few nights ago sue osssful experiment was made with the ,nvention for the transmission of DOT. traits and other pictures over the ,rirss. The test was over one of the rsgular leased wires of the Associ- arsd Press between New York and Washington. In the New York office s photographic plate was placed on inc machine, and the receiving in .rrument here recorded an excellent reproduction,
 The idea of the Palmer and Mills in ysntiou is very simple one. In pre- p,ring a picture for transmission the process of making half.tone plates is closely followed. The picture to be transmitted is photographed through A screen on metal plate, just as in halftone work, except that very roarse screen, approximating ten lines 
 to the inch, is used. The plate thus prepared is then coated with sealing wax and ground down with emery cloth until none of the wax covers what might be termed the printing surface of the plate, filling only the indenta tions, which, if used for printing, .-..1l ,hnx.x uhita
 PHOTOGRAPHIC NEEDLES WORK.
 Thus prepared, the plate is bent around a cylinder in a machine re- ,embling an ordinary typewriter in size and appearance. The machine is operated by an electric motor, and as the cylinder rapidly reyolves, needle, such as is used in taking phono- graphic records, travels slowly along it's length. In similar machine at the other end of the line piece of white paper takes the place of the plate on the cylinder, and instead of a needle, fountain pen travels along it. keeping pace exactly with the needle. In it's travels, of course, the needle is part of the time on the eX- posed metal and part of the time on the filling of wax. When the needle is on the metal an electrical contact Is made and the pen on the receiving machine makes black mark to cor respond to the metal exposed. When the needle is on the sealing wax, the wax being a non-conductor of cleo tricity, there is no contact, and :he pen at the other end of the wires is raised slightly from the paper surface. leaving a white space to correspond to the indentations in the plate filled with sealing-wax.
 The plate revOlves rapidly, and as tte needle travels slowly on very fine screw. thread, there is no par ticle of the plate-surface that the needle does not touch. Though as yet the pictures as produced possess many imperfections the photographs are easily recognizable. Half.tone plates made from them work up almost as we'll as though made from the original photograph.
 SEVEN MINUTES TO TRANSMIT PICrU RE
 In the experiment here it required seven minutes for the record of the picture to pass over the wire. The inventors hope to so perfect their ma chine that it will soon be practicable for commercial purposes. The two machines used in the test between New York and Washington are the only ones that have yet been con structed. They were made for eXperi mental purposes, and numerous i'm perfections have been discovered whicE will be easily eliminated from future machines. The same machine can bt used for either sending or reciving.
 The invention is known as the cleo trograph, and is the product of severa years of study and experiment on th' part of the inventors. From Wash ington the machines were taken tC Buffalo, where they will be exhibited during the Pan-American Exposition
 UNCLE SAWS SILVER.