106 Morey’s explosive Engine. 
complete the preparing vessel. The opening to this box 
be about two inches in diameter 
The exploding part of the machine, also admits of a great 
ariety of construction. The following may serve as a con- 
venient one. Have a cylinder fitted with a piston or plung- 
r, and connected with a crank shaft, as in the steam engine, 
let the lower end of the cylinder have a valve of at least half 
its diameter, opening outwards. This valve may be made of 
thin soft leather, of the same diameter of the cylinder. This 
leather is to be tied or fastened to the lower end of the work- 
ing cylinder, so as to form a continuation of same. he 
lower end of the leather cylinder or valve, is to be flattened, 
so as to bring its inner sides together, for about four or five 
inches of its length, and kept in that position, by light springs 
attached to the two edges of the flat part, placing it in a posi- 
tion much like that of a bow and bow-string. This valve is 
supported, or prevented from being driven into the cylinder, 
by a plate of metal, of sufficient thickness to bear the pressure 
of the aémospbeks, arched or raised outwards, and perforated 
with as many holes as can be well made. m it; the holes 
Should be from about 4 to ¥ an inch in diameter: The end 
of the cylinder forms the abutment to this arched plate. An 
air valve, also opening outward, is fixed in the side of the cy- 
linder, | na below the piston when down. A pipe from the 
preparing vessel, is inserted or attached to the side of the cy- 
linder, a from 4 to ¥ of the length of the the top: 
is pipe should be as short as it can conv veniently be, ana 
sho ald e furnished with a valve next the pr eparing box 
cut off the communication with i it, and a small valve ie 
half an inch in diameter, next the cylinder, to let the infam- 
mable air communicate with the flame of a a lamp, so as to take 
ws and communicate by the trail to the charge in the cylin- 
er. These valves also open upwards, but as the explosion 
meets with ‘so Titsle resistance below, they are never thrown 
upwa ey are worked by beams on the crank shaft, as 
it of turpentine and water, or se materi 
Pable of evaporation, and the vapour of which is co ates 
