Popular Science Monthly 



Telegraphing with the Telephone 



THE man at the telephone is tele- 

 graphing. He is Paul P. Banholzer 

 of Philadelphia, connected with the 

 steam engineer- 



563 



and 



ing and electrical 

 department of the 

 Navy. He has 

 increased the effi- 

 ciency of the tele- 

 phone by devis- 

 ing a telegraph- 

 transmitter which 

 can be attached 

 to any telephone 

 standard. The 

 connection be- 

 tween the two in- 

 struments is pure- 

 ly mechanical and 

 not electrical. 

 The device does 

 not require an ad- 

 ditional electric 

 circuit. Its ad- 

 vantage lies chief- 

 ly in the fact that 

 the Morse signals 

 sent by this in- 

 strument carry 

 farther over a 

 long distance tel- 

 ephone line than 

 the voice and that 

 the sounds pro- 

 duced are definite 

 and unmistaka- 

 ble even to an inexperienced person. 

 The instrument is especially useful in 

 telephone train-dispatching. If the tele- 

 phone conversation is not clearly under- 

 stood it can be verified, or supplemented 

 by the telephone-telegraph instrument. 



The doctor 

 did not care 

 to carry a 

 medicine 



case, so he filled a hollow cane with pills instead 



The telegraph-key is mounted very much 

 like any other telegraph-key, except 

 that it is pivoted at its extreme end; the 

 sound that it produces is sharper than 

 ihat of the ordinary telegraph-key and is 

 conducted to the telephone through the 

 metal base and through clamps which 



encircle the telephone standard 

 fasten the instrument in place. 



The apparatus is being tested out at the 

 Philadelphia Navy Yard with wireless. 



It is claimed that 



i f conversation 

 can be trans- 

 mitted by wire- 

 less telephoning, 

 telegraphing by 

 wireless telephone 

 with this instru- 

 ment, can be con- 

 ducted by any 

 "wire" operator, 

 and that it will be 

 possible to intro- 

 duce wireless on 

 all railroads. 

 When telegraph 

 wires are down, 

 this device can be 

 used on the tele- 

 phone circuit in 

 conduits under- 

 ground. 



A telegraph-key attached to a telephone, 



which places the whole vast telephone 



system of the country at the disposal of 



the telegrapher 



Cane Holds Doc- 

 tor's Medicines 



AN 

 l\ p] 



eccentric 

 hysician, 

 who did not like 

 to be seen carry- 

 ing a medicine- 

 case, devised a 

 hollow hard- 

 rubber walking- 

 stick with a sliding metal holder 

 for the bottles of tablets and powders 

 and other first-aids. This metal holder 

 is a half-tube, slightly crimped at the 

 edges, so as to grip the bottles tightly 

 enough to prevent them from falling 

 out when the tube 

 is pulled out of the 



cane. To all appearances the cane is 

 just like other walking-sticks, but when 

 the old physician removes the handle, 

 by unscrewing it from the straight part 

 of the cane, a sort of button is revealed, 

 which serves as a means of grasping 

 and pulling out the tube with its drugs. 



