Popular Science Montlihj 



(i'23 



on a float or dock and part on the gun- 

 wale when getting on or off — rest your 

 weight equally on both gunwales. Don't 

 stand up in the canoe. If you must 

 change your position while afloat, rest 

 your weight on both gunwales, keep low- 

 down and slide to your desired place. 

 Don't try to paddle from the seats when 

 it begins to get rough — get down on the 

 floor and get there gently. Don't leave 

 the canoe exposed to sun, rain and wind, 

 keep her under cover when not in use. 

 {To he continued) 



Wire ring 



•«-Wire support*] 



Loops to 

 slip over J 

 pipe 



An Attractive Heat-Driven Window 

 Display of Gas Fixtures 



NOT long ago an establishment dealing 

 ingasfixtures, displayed 

 in its window a gaily colored 

 pasteboard clown holding in 

 one hand a well-known type 

 of gas light, while apparently 

 balancing on his nose a 

 lighted lamp, the colored 

 shade of which revolved con- 

 tinuously. A back view of 

 the figure showing the piping 

 and wood braces is displayed 

 in Fig. 1. A gas hose from 

 a convenient stop and con- 

 nected to the brace pipe, 

 furnished the illuminant and 

 motive power. 



The latest window display, 

 advertising this same light, 

 is more spectacular than the 

 first. Standing at one side 

 of a moonlight scene, show- 

 ing a large moon rising back of the house 

 tops, stands a gaudily dressed Oriental, 

 who points toward the face of the moon, 

 across which illuminated words move con- 

 stantly. In each display, the ascending 

 current of hot air, generated by the gas 

 light, is the motive power. The mechan- 

 ism is just an adaption of the old hot air 

 wheel the boys used to hang over the cook 

 stove. 



The wings are attached to a wire ring, 

 Fig, 3, which is slipped into a deep paper 

 shade, fitting into the shade snugly near 

 the top as shown in Fig. 4. The bottom 

 of the shade is kept in shape by a card- 

 board ring secured with wire clips which 

 pass through the shade. See Fig. 5. A 

 wire support, looped at the bottom to slip 



over the gas pipe, supports the wheel and 

 shade. A small depression in the exact 

 center of the wheel fits over the pointed 

 end of the wire support. Point and de- 

 pression are gaged to a nicety as is evi- 

 denced by the even balance and smooth 

 movement of the shade. 



The display just described requires the 

 lamp to be concealed by a semi-circular 

 black cardboard screen. This cuts off 

 the light except at the top and front. The 

 light, projecting through the cut-out, 

 words in the shade, glows through the 

 tissue paper face of the moon, and the col- 

 ored design on the shade produces an effect 

 of moving clouds across the face of the 

 moon. As in the clown display, the light 

 advertised is also prominently shown. 

 Fariv 



OTTsetto 

 II clear 

 II burner 



Fiq3 



Clamps to 

 tasten pipe 

 totioor 



A heat-driven wheel for tioming lettered signs and the 

 arrangement for illuminating the parts of the scene 



Methods of anchoring the lamp, also a 

 rear view of the display, are shown in 

 Figs. 2 and 6. Judging from the im- 

 provement in the second display, the use 

 of gas generated hot air, and the simpli- 

 city of the mechanism necessary to utilize 

 it, offers a wade field for attractive window 

 displays. — James M. Kane. 



Permanently Fastening Joints Held 

 vi^ith Screvi^- Unions 



IF you desire to fasten pipes or pipe fit- 

 tings together permanently, thorough- 

 ly clean the parts to be fastened and 

 cover the threads with a strong solution 

 of salt and water. The salt will rust the 

 threads together, fastening the parts. 



