Popular Science Monthly 



591 



At a recent test Michael Pcnha at 

 limes raised the point to a distance 

 equaling three pounds in weight, that 

 being the record of the forefinger. The 

 pressure alone required to produce the 

 characteristically luscious tones of a 

 simple Bach aria averaged two and three 

 quarters pounds per note. The total 

 energy expended amounted to nine 

 thousand four himdrcd and fourteen 

 pounds, or more than four tons. 



This same amount of energ\" would be 

 sufiicient to carry a laborer through his 

 entire day's work. Yet it took but five 

 minutes for the artist to exert the same 

 amount of force. 



Old Dobbin Carries His Umbrella 

 With Him 



A CINCINNATI teamster who wants 

 to make life more endurable for his 

 horse during the torrid summer days 

 when it is out in the broiling sun earning 

 a living for him, has devised a horse 

 umbrella which consists of a canopy of 

 canvas stretched over a steel frame 

 which clamps to the shafts of the 

 wagon. The horse is thus effectively 

 protected from the rays of the sun and 

 wherever he goes he carries the umbrella. 

 When hitching or unhitching the 

 animal it is not necessary to detach the 

 canopy. The horse backs right under it 

 between the shafts as if it were not 

 there. The umbrella not only serves its 

 purpose as a protection against the sun. 

 but it shelters the animal from rain. 



A canopy of canvas is stretched over a stte 

 damped to shafts of the wagon but does not 



The dust collects in a drawer in the bottom 

 of the hopper and the corks emerge cleaned 



Cleaning Crown Bottle- Corks in a 

 Portable Hopper 



PORTABLE automatic screener 

 las been invented for cleaning 

 crown bottle-corks and any 

 material of granular or lump 

 form, such as coffee-grain 

 or the like. The illustra- 

 tion shows crown corks 

 being dumped into the 

 device. The corks 

 emerge at the bottom, 

 cleaned of any particles 

 of cork or splinters. 



The hopper has a 

 series of zig-zag sloping 

 screens in the interior. 

 The corks roll from 

 these zig-zag screens to 

 a rotating wheel with 

 1 frame which is radial screen vanes, 



touch the horse which agitates them. 



