Popular Science Monthly 



847 



An 



A 



N 



of Los 



'Armless" and Inconspicuous 

 Baby Carrier 

 .ipp.ir.iius, the principal aim of 

 wliit li is to eliminate the elc- 

 niciil of driulgcry from the oper- 

 ation of t'on\i'ying an infant from 

 l)lace to place, has just been in- 

 wnted by W. J. Sprong, 

 Anufk's, ("aliforiiia. Tlie 

 carriiT may be used either 

 in the home or uiJon ih 

 street ; while the moth 

 is iloing the work abou 

 I he house, or at the time 

 of her shopping ton 

 One of the features ( 

 the device is that whe 

 it is used both arms ( 

 ihe person carrying th 

 { hild are practical! 

 free to tlo other thing 

 Another point which is 

 important is that 

 by its use the 

 shoulders and back 

 are forced to take the 

 WL'ight of the child, 

 rather than the 

 arms. FracticalU' 

 no etTort is needec 

 to carry the aver- 

 age baby. With 

 this tlevice in use 

 the go-cart may be 

 left at home, while 

 on rain\- ila\s the infant's feet need not i)e 

 prrmilled to toucii the pavement. 



The de\ice may be used with ecjual com- 

 fort either upon or beneath the outside 

 ( lothing. The part of the carrier which 

 holds the baby may be attached to and 

 detached from the shoulder "harness" in 

 ail instant, the basket section being so 

 small that it takes up no more room than 

 a good-sized handkerchief when rolled up 

 and jilaced in the purse or handbag. 

 It is m.ide of a fabric material and is ad- 

 justable to any size. 



Manual & Contrctled Manual Block Signets 



A-' 



With this carrier the shoulders and back 

 are forced to take the weight of the child 



Daylight Lamp Signals Will Take 



the Place of Semaphores 

 NEW system of signaling which dis- 

 penses with semaphores and colored 

 lamps has been adopted on the 

 iVmisyhania Railroad. All indi- 

 cations, both by day and by night, 

 ' are given by rows of white lights 

 corresponding with the positions of 

 semaphore arms. The system has 

 in use for more than eighteen 

 months on the twenty-mile 

 line from Philadelphia to 

 Paoli. This line has four 

 tracks and it is one of 

 the latest examples of rail- 

 way electrification. There 

 is hea\y suburban and 

 general traffic and the 

 blocks are three to four 

 thousand feet in length. 



In 1914, Dr. Church 

 disco\ered the possibility 

 f securing long range from a 

 mall lamp arranged in the 

 xact focal center of a small 

 ide-angle lens. Following this 

 ml in conjunction with Mr. A. 

 Rudd, Signal Engineer of 

 he Pennsyhania Railroad, the 

 ew signaling system was de- 

 cloped, in which separate light 

 units arranged in rows represent- 

 ed the positions of the sema- 

 plicjre blades, dispensing entire- 

 ly with the use of lights of different colors. 

 After extensive experimenting, the system 

 was perfected and put into actual service. 

 The signals are used both at lilock sections 

 and at interlocking plants and are operated 

 both automatically and manually. 



In the opinion of Mr. Rudd, light signals 

 are the coming t>pe, and will supersede the 

 present semaphore signals. The only 

 alternative is the possibilit\' of an auto- 

 matic speed-control sxsteni for trains, suffi- 

 ciently reliable to preclude the necessity- for 

 fixed signals of aru' kind. 



Automatic Block Signals 



Additional Si9nal3 at 

 Interlocking Planrt 



iiiiiiiill 



Pi'oc c ett . pr« M r e d 



Rows of white lights corresponding with the positions of semaphore arms indicate all signals both 

 by day and by night. These new signals have been given the name of •'position lights" 



