
664 | Mr. Luccock’s Patent 
the fame manner, as thofe do which are 
employed in the fteam engine, or fome 
ether contruSion which fall aniwer the 
fame end as thefe do. The pifton, in his 
machine, or whatever may be fubftituted 
for it, is moved by throwing thereupon, 
and taking off at pleafure, that preffure 
which the fluids above mentioned furnifh 
us with; and this is effected by certain 
veflels,” pipes, and valves, adapted to the 
cylinder, or conneGted with it. There are 
two principal pipes ; one of them called 
the injeCtion-pipe, the other the eduétion- 
pipe... Uhefe machines admit of feveral 
general kinds of conitt uétion, which dit- 
fer from each other chiefly in the relative 
fengths of the injeftion and eduétion- 
pipes; for, either of thefe may be longer 
than the other, or both of them may be of 
equal length. 
In Fig. 1, (See the Plate) A, repretents 
the cylinder, with its pifton. (In this 
eale, the cylinder is clofed at bottom.) 
B, isa vefiel, of any convenient form and 
SS ase at is called the ciftern, be- 
eaufe the fluid which works the machine is 
conveyed into it, asintoarefervoir. C, is 
the injection-pipe, having oneend conneéted 
with the ciftern, and the other with the 
cylinder, in fuch a manner as to conduét 
‘the fluid from the ciftern into the cylin- 
der, below the pifton. D, is a cece” or 
valve, by which the paffage of the fluid, 
along the pipe C, may be obftructed at 
pleafure ; this is called the inje€tion-valve, 
and may be placed in any part of the pipe. 
Ancther valve, or cock, at E, is denomi- 
“nated the BUCO Se becaufe it is 
fixed ina pipe which ferves to draw the 
Suid off from the cylinder, anc which is 
therefore named the eduétion-pipe. 
Suppofe an engine thus conftrutted, 
with all its parts piace 
fné figure, and each of them properly fup- 
ported, and fixed firm! ly in their feveral 
places, by means of 3 mafonry or wood- 
work, or by any other means which will 
anfwer that purpofe, its mode of operation 
ey be ealily underitood. ‘Let the two 
val Ves or cocks, which may be ufed in- 
fiead of them, be fhut, oe the piffon near 
to the bettom of ae cyl linder. Fill the 
ciutern B with any kind of denfe fluid, fuch 
3 water, oil, mer eury, “er the |i eee this 
fluid, whatever it be, will defcend alon 
the injection pipe C, to the valve D, and 
is there flopped. Open the injeétion-valve 
D, and the fluid willendeayour to pafs into 
the cyl.nder, preffing againft the lower fide 
of the pifton swith a force equalto theweight 
of a eo lu mn of the fame fluid, whole 
be a ae rapes ir ate , 
afc day Bek Gl tatcar OL) Vine pilton, and i€S ai- 
for his Paradoxical Engine. 
as ee. In 
[Augutts- 
titude equal to the height of the furface of 
the fluid in the citer above that in the 
cylinder. If, therefore, this force be 
greater than the aggregate weight of ‘the 
pifton, its friction againit the infide of the 
cylinder, and any other fortuitous. preflure, 
the pitton itfelf muft afcend.. When it 
reaches the top. of the cylinder, or any 
other convenient height, ‘let the fate of 
the valves be altered, 7. e. let the injec- 
tion-valve D be hut, and the edu&tion- 
valve E be opened ; ie fluid in the cy- 
linder will difcharge itfelt, and the pifton 
by its own weight. will ‘defeend. Wher 
this has regained its firft fituation, let the 
ftate of the vaives be again altered, and 
the ftroke may be repeated; and fo on, 
continually, while any fluid is left in the 
ciftern, or can be conveyed thither. 
Fig. 2. reprefents another of thefe ma- 
chines: it has its” injeétton- pipe much 
fhorter than its eduction-pipe. Here alio, 
A, refers to the cylinder; B, to the cif- 
tern. C, is the injection-pipe; and D, 
the injection-valve. E, points. out the 
edu@ion- valve, and F, the eductionspipe. 
At the lower end of this pipe is fixed a 
valve of any kind, opening downwards, 
which is kept. ener imany open veflel, 
as G, filled with the fame kind of fluid as 
that which works the engine. Near to the 
top of the pipe, as at Hy i is a fmall fuck- 
ing-pump, to be wrought by hand, or 
otherw ife, which ferves to draw the air out 
of the pipe, before the machine is fet in 
motion; and alfo- to extraét avy other 
elaftic fluid which may afterwards get into 
the pipe by accident, or be difengaged 
from the fluid which works the machine, 
At T, is a fmall: pipe, with a cock in it. 
One end of the pipe is immerfed in the 
veflel of fluid G, the other opens into the 
eduction-pipe. When the pump H is 
ufed, open the cock KR, and the fluid wiil 
afcend in the eduétion-pipe, as the air. is 
extracted from it by the pump. - The 
eduction pipe being filled, ftop the cock at 
K, and the preilure of the atmo(phere, upon 
the furface of the fluid in the veffel G, will 
keep that in the edu€tion-pipe from de- 
{cending, until the valve at E be opened. 
_ In this ftructure of the engine, if the pil- 
ton by any means be raifed to the top of 
the cylinder, while the injection-valve is 
open, the fluid will follow the pifton, and 
rife after it in the .cylinder. .But, when 
the valve at D is fhut, and the other at E 
‘is opened, the fluid will begin te difcharge 
itfelt ineaaee the Berna: -pipe,. with ‘a 
velocity prop sortioned ta the length.of that 
pipe, (af it be not longer than about thirty- 
two feet,) and will produce a preffure 
upon 
