ANOTHER NEW TELEPHONE. Some Remarkable Experiments in the Open Air.

Te Aroha News, Volume V, Issue 229, 19 November 1887, Page 2

ANOTHER NEW TELEPHONE. Some Remarkable Experiments in the Open Air.

Tijk other clay William A. Hayward, manager of the Pul.sion Telephone Company, invited the "Herald"' representative and -other newspaper men lo inspect the opera, tion of, a private wire at' Korth Milford. Jerome Prince and Lemuel Milletfc, of Milford, have perfected the pulsion telephone after months of close study. They use no battery or electricity, operating through a wonderfully ingenious transmitter and a No. 18 taut copper wire. Mr Hayward led the way to an apple orchard, where, 1,600 feet from the house, a single wire, with a loose end lying on the ground, was stretched from hou&e to tree. One of the paity went to the house and spoke through the transmitter, and an Associated Press agent took off his hat— a common straw— laid ifc on the wno, using it as a receiver, and held convei&ation in an ordinary voice. At the same time William Bantcroft, of Hopedale, took hold of the wire between the two speakers, to prevent any vibration and also to conduct off aj'possible electrical current. This had no * eilect whatever. During the talking three others of the party ° aLo overheard the conversation by listening in hats placed on the wire afc the end of a stick placed against the tree limb to which the nne was attached. Hi 1 Hayward placed the line at the service of the party for tests. The newspaper men then arranged a test to discover the range of audibility. The '"Herald" men held a stiff Derby hat against the wire near the tveo and canied on a conversation thtough the wire with the hon.se, his associate meanwhile steadily retiring from the hat ab right angles to the wire. When away sixty tect from the hat, the latter plainly understood the conversation of both, and at seventy-eight feet could hear, but nob distinguish woids. A whispered conversation was plainly audible. All this occurred wholly out. of doors and one-third of a mile from the speaker at the transmitter in the apple orchard. A brisk wind was blowing across the wire. This closed the experiments with the single transmitter and grounded wire. The paily then went to an adjacent building, to the unoccupied loft of which a wire from the fiwl house was stretched, connected with the .second transmitter. Ordinary conversation through the transmitter could be heaul anywhere in the room. Whisper?, singing, music, etc., were distinguished with/ great clearness. Mr ; pi-iTice left the transmitter, went out of the room and down a flight of stairs; and his conversation that distance from the transmitter was very distinctly heard at the other end. The "Herald" man,, standing in a yard, heard Mr Pxince clearly over the wire, although the nearest transmitter was forty feet away in a direct line upstairs-, in an interior room. The above te.-frs were tiied by each of the party in turn. The transmitter contains a device for imparting to the tones of the voice a peculiar \ibratory force, not only persistent, a-, a chains* other vibratory foices, bub easily controlled. From Mr Haywards ! oilice line* to North Milfoid, Hopedale and Upton will be constructed, and the mosb rigid tests that can be devised will be tried before it is 1 presented to the public. — Milford Corr. " Boston Herald."