926 



ropiilar Science Muntltly 



A Home-Made Heating 

 Arrangement 



NECESSITY required that a house 

 built solely for use in summer weather 

 should also l)e used as a winter home, and 

 the problem of keeping from freezing during 

 the cold months was solved finally by the 

 home-made heating plant illustrated here- 

 with. There was a cooking stove in the 

 kitchen, which could be depended upon to 

 keep the kitchen and a part of the living- 

 room warm. This left the up- 

 stairs totally without heat. There 

 was no hole in the chimney for a 

 furnace pipe, but there were 

 perforations in it on the li\ing and 

 chamber floors. 



This suggested the following 

 home-made furnace installation. 

 An ordinary cylinder stove 

 was purchased and installed 

 in the cellar, and a long stove- 

 pipe run from this through 

 holes in the two ceilings to the 

 outlet in the chimney on the 

 second floor. A 9-in. tin pipe 

 was then jacketed outside of 

 the stovepipe, and fastened 

 in the two floors. Tin caps 

 were bought with the larger 

 pipe to fit on either end. 

 Holes I in. in 

 diameter were 

 cut through 

 these caps 



all around ^^^^. "^^ retaining 



the circle ^^^^^ *"^'' ^'° 



me LirciL. '"'ffi^^SSa?'^ stovepipe to 



The object l)|ll" '^"il|||^ warm the up- 



of these per bedrooms 



holes was to admit fresh air in the lower 

 end of the pipe and to permit the hot air 

 to escape above. 



When the fire was started in the stove in 

 the cillar, the smoke and hot gas traversed 

 the full length of the inner stovepipe, and 

 in so doing healed all the air between it 

 and the outside pipe. While the smoke 

 and gas escaped through the chimne\- in 

 the ordinary way, most of the heat which 

 generally goes up the chimney was caught 

 and radiated in the form of hot air in the 

 upper chamber. Fresh air came up through 

 the holes in the outer ]iipe in the cellar, 

 and after traveling the full length of the 

 distance from the cellar tf) the second floor it 

 spread out as hot air to warm the bedrooms. 

 Thef|ueslion of risk from fire was eliminated 

 by using sheet asbestos wherever the pipes 

 came near or in contact with wt)odwork. 



Starting an Automobile When One 

 Rear Wheel Is On Ice 



THI-3 owner of an automobile happened 

 to stop his car where the front wheels 

 were in some mud, one rear wheel on a bit 

 of ice and the other on solid ground. The 

 mud was not deep, but there was just 

 enough to pre\ent the car starting from a 

 standstill with one driver on a slick surface. 

 Ha\"ing no tire-chains on hand he tried 

 putting some sacks under the 

 wheels in which the chains were 

 kept. These were thrown out 

 behind the car as fast as they 

 could be put under the wheel. 

 He finally pulled out In' h.i\ing 

 some one push while the clutch 

 was thrown in action. 

 The trouble as mentioned could have 

 easily overcome without the driver 

 ig out of the car or doing anything 

 especialh" different from the usual if in 

 starting the car on low gear he had 

 thrown in the brake enough to cause a 

 iniU on both rear wheels. This would 

 ia\e produced a tractive efi^ect suffici- 

 ently strong to get the car through the 

 mud. This idea can be used in many 

 similar cases where it is difficult to start 

 the car for lack of tractive power on one 

 wheel. 



How to Make a Pendulum 

 Swing Easily 



THE uneven swinging of clock pendu- 

 lums is generally due, not to incorrect 

 balancing of the pendiihnn weight, but to a 

 tin>- kink in the feather-spring from which 

 the pendulum is suspeniled. If the lace 

 of the clock is taken olT. the feather-sjiring 

 may be twisted slightly in the right direc- 

 tion with a pair of tweezers or small 

 ]iincers. This will correct the unsightly 

 wobble and help to maintain the perfect 

 balance. — RAi.fii W. TiLLOTSON. 



Lifted Tread Sections in Making 

 Automobile Tire Repairs 



Ml ("11 h.is been said about the lifted 

 tread method of making a sectional 

 lire rei>air, but man>- N'ulcanizcrs are still 

 following the wasteful practice of cutting 

 olT the old rubber and throwing it awa\'. 

 ("lit across the tread well to one side of 

 the injury and iicel it back. .After llic 

 section has been built in, cement the ireail 

 .111(1 l,i\' il b.K k in place. 



