TELEPHONE TRANSMITTERS.

Dominion, Volume 2, Issue 600, 31 August 1909, Page 6

TELEPHONE TRANSMITTERS.

! ' INVENTORS AT WORK. To those in touch with clectncal matters, I -it 'will be no surprise to.learn that inventors i are at work in New Zealand -on the.task.ol ' devising'(improved.' telephine transmitters. |At '.least',two officers,. of /the Post: and Tele- ; been ;•] working •: j 'itf 'theirspare- ; tirae '.withi. this„ object.for.'.con-, siderable periods.- One of them, a mechanician at Chriatchurch, has, brought. his in-. fVehtion.-;to'lsuch .a ■ stago,' that ie has; been able -to submit 'it to the;' Department, with a' view to 'its' adoption. He claims that-it is considerably more -efficient for long-dis-'tan'c6:. work . the ' transmitters how,-in use. Its shape,'.: which : -resembles that of the •. human ear, is • specially 'characteristic.. Tho Department; has prdered a number of these transmitters, which will-; be - placed on Atrial. ; Should- the' results be favourable, more will doubtless be " ordered, but it is not anticipated; that any, apparatus already installed will be displaced. >':■ The inventor of this transmitter, Mr. Maloney, is also in.aegotiationiwith the Com/wouwealth .Government,' and intends to leave for England at no distant date in oxdir to superintend , the .filling of; ; the New Zealand order, and to push' his invention in tho Old Counti-y. | It. .will -be interesting to see. how the work of '.the New- Zealand investigators compares with the new transmitter which Mr. Edison iwas v reported : . to bp' engaged i upon a few. months ago. 4 The "Electrical World," recording . a visit paid \to 'the great inventor last February, states: , "Mr; Edison was found to be actively occupied with the perfection of a' new .form-' of . telephone, transmitter, for special. service "on railroads.. . The new'transmitter!is remarkably' sensitive 1 Mr.; Edison,--notes that even.,to-day, -'unless something is r already known of the speaker on ;the subject, people frequently have <to ! repeat and repeat, for ore asked to spell it out, or give' it up. ;.'. With my new transmitter, of tho variable pressure type, but with; very-'novel electrodes, -I, think I compass the entire alphabet with a. clearness aiid sharpness - of enunciation never "before attained.' Mr. . Edison , said; the. transmitter would doubtless find; extensive use outside the service for which lie primarily intends it."

Another now>:American idea ■ in telephone accessories is the glass mouthpiece, which is said, to have better talking- qualities than the ordinary mouthpiece of hardened, rubber, vhilo it can be easily removed to be cleaned, boiled, or disinfeotcd. ~