FLYING-MACHINE MOTORS AND CELLULAR KITES. 81 
PARTICULARS OF KITES. 
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ie ease Fs?) Eler 30” | aluminium | 11” 14°75 
| 162) 3” ay 3” 22” | cardboard 65" | 105 
Die oa eset 13213"), 47 45” | 31°63") wood & paper| 12” | 11° 
EE} 1| 4° |107” | 6:25”) 4:5” | 21:25") wood & paper| 7°25") 3:25 
en an | 10%" | 6:25. 21°25"| wood & paper| 7:25”) 3°25 
* Distorted cylinder. + Cylindrical. 
The motor exhibited embodies all the latest improvements, 
notably the boiler, which is a fourteen feet length of one-quarter 
inch solid drawn copper pipe, which has been reduced from one 
and a-half pounds to thirteen and a-half ounces at one cut by the 
cutter, which is also exhibited. This is one of those trifles that 
render it possible to use the ordinary materials of commerce with- 
out having to send to Europe for the finished article specially 
drawn to gauge. By using the cutter, the job was done in one 
and a-half hour ; by sending home forit the pipe might have been 
here in four months. The hollow steel screw shaft 10°8 m. 
diameter and 3 m. gauge seems to be all that is required. The 
sample shown was tested to destruction ; one hundred and forty 
pounds at two inch radius wrung it as you see. 
F—June 7, 1893. 
