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Vopulur Science Moiithh/ 



A Combination Lamp 



and Horn for the 



Motorcycle 



0\I-" of the newest 

 attailiinonts for 

 motorcycles is a com- 

 bination horn and 

 lamp to be fastened 

 to the handlebars, the 

 shell of the lamp form- 

 ing a base for the 

 support of the casing 

 of the horn. It is the 

 in\'entif)n of Perrin B. 

 Whitney, of New 

 York cit\-. 



The shell of the 

 lamp is round, as 

 shown at lo in the 

 detail, and contains a 

 reflector 1 1 , which is 

 so constituted as to 



form a resonating chamber for the horn. 

 One or more light bulbs, 12, are also con- 

 tained in the shell, and connecting wires, 13, 

 pass outward through a specially arranged 



The shell of the 

 lamp contains a 

 reflector, which 

 forms a resonat- 

 ing chamber and 

 serves as a sup- 

 port for the horn 



into disk-shape, 19, 

 from which a number 

 of short posts extend 

 to the axis of the 

 shell. To these posts 

 the cvlindrical casing 

 which is the contaiiier 

 for the horn is secured. 

 This casing may be 

 closed by a lid, or 

 co\er, 23, through 

 which the wires, 25, 

 leading to the electric 

 vibrator 24, of the 

 sounding device, ex- 

 tend. 



The construction is 

 very compact and 

 simple. The sound- 

 ing qualities of the 

 horn are greatK" in- 

 tensified b\' the reso- 

 nating chamber provided b\' the lamp shell. 

 The device is adapted for use on auto- 

 mobiles and other vehicles as well as for 

 the motorcycle, the shell being provided 



socket 14. A portion of the shell is flattened with means to attach it wherever desired. 



Money Prizes for Motorcyclists 



Send In Your Kinks 



IF you are a motorcyclist, if >ou have 

 devised simple ways of making re- 

 pairs, if you have improved your ma- 

 chine in any way, this will interest you. 



The PoPUL.VR SciKN'CR Monthly 

 offers a first prize of $25, a second prize 

 of $15 and a third prize of $10 for 

 articles in which motorcyclists will de- 

 scribe and illustrate the methods which 

 they have successfully employed for 

 (nerconiing trouble, for making C|uick 

 i([)airs by the roadside or more difficult 

 ni)airs in the shop, or for making 

 attachments wherebv- the use of the 

 niiitorcycle has been broadened. 



The three prizes will be awardetl l)y 

 I lie editors of the Popular Scienxe 

 .Monthly in the order of merit. What 

 is more, even though your article may 

 not win a prize, the editors may buy it 

 at the usual rates, just because it is so 

 good. 



Tiierc arc no limitations to this prize 

 offer. We don't care for fine jihrasiiig, 

 lull wi' dii c.ire for good mcch.iniiMl 



ideas. Rough pencil drawings or photo- 

 graphs will do for illustrations. 



The ft)llowing conditions are to be 

 observed : 



(i) Articles must be written on one side 

 of the sheet only. 



(2) Write your name and ad.lrcss in the up- 



per right-hand corner ol the tirst slicet. 



(3) Enclose postage for the return of the 



manuscript. 



(4) Don't send in articles on ideas which 



ha\c already been published. 



(5) Uon't send paper ideas — things that 



you haven't actually done yourself. 



(6) Address the envelopes cont.iining ar- 



ticles to 



"Motorcycle Contest Editor" 



Poi'l I AR SCIKNCK Ml)NrilLV 



239 Fourth Ave.. New York City 



The contest will close on December 

 31st, i()i6. 



The mone\- for the prizes will be paid 

 promptly after the awards haw l)een 

 m.ide. 



