Im- PROVEMENTS IN MACHINERY FOR OBTAINING MOTIVE POWER BY MEANS OF STEAM OR OTHER FLUIDS
Year: 1872

page_text: LETTERS PATENT to Albert Sauvée, of 22, Parliament Street, in the
County of Middlesex, Civil Engineer, for the Invention of “Im-
PROVEMENTS IN MACHINERY FOR OBTAINING MOTIVE POWER BY MEANS OF
STEAM OR OTHER FLUIDS."-A communication from abroad by Monsieur
PROVISIONAL SPECIFICATION left by the said Albert Sauvéc at the
Office of the Commissioners of Patents, with his Petition, on the
4th July 1872.
I, ALBERT SAUVÉE, of 22, Parliament Street, in the County of
Middlesex, Civil Engineer, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN MACHINERY FOR OBTAINING MOTIVE POWER BY
MEANS OF STEAM OR OTHER FLUIDS," to be as follows:-
This Invention consists in obtaining by the aid of a distribution placed
on the movable part of the engine a motion of the piston reproduced
exactly similar to the motion of the slide valve. The work performed
by the engine depending on the surface of the piston and the pressure on
the same piston, the power of the prime mover is thereby multiplied.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Albert Sauvée in the Great Seal Patent Office on
the 20th November 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALBERT
SAUVÉE, of 22, Parliament Street, Westminster, in the County of
Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourth day of July, in the year of
our Lord One thousand eight hundred and seventy-two, in the thirty-
fifth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Albert Sauvée, Her special licence that
I, the said Albert Sauvée, my executors, administrators, and assigns,
or such others as I, the said Albert Sauvée, my executors, adminis-
trators, and assigns, should at any time agree with, and no others, from
time to time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands, and
Isle of Man, an Invention for "IMPROVEMENTS IN MACHINERY FOR OBTAINING
MOTIVE POWER BY MEANS OF STEAM OR OTHER FLUIDS," a communication to
me from abroad by Emile Duclos, of 25, Rue Nicolas, Marseille, France,
upon the condition (amongst others) that I, the said Albert Sauvée, my
executors or administrators, by an instrument in writing under my, or

page_text: their, or one of their hands and seals, should particularly describe and
ascertain the nature of the said Invention, and in what manner the
same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately
after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Albert Sauvée, do hereby declare
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement, reference being had to the Sheet of Drawings here-
unto annexed, and to the letters and figures marked thereon (that is to
say) :-
:-
This Invention consists in obtaining by the aid of a distribution placed
on the movable part of the engine a motion of the piston reproduced
exactly similar to the motion of the slide valve. The work performed
by the engine depending on the surface of the piston and the pressure
on the same piston the power of the prime mover is thereby multiplied.
DESCRIPTION OF DRAWINGS.
Fig. 1 represents a front view, Fig. 2 a section through the longitudinal
axis of the cylinder, and Fig. 3 an end view of the cylinder.
A is a pipe, constantly conveying the steam, water, or any other prime
mover through the orifice a; B is a similar pipe for the exhaust, com-
municating with the interior of the piston through the orifice b; C is
the slide valve, establishing a communication alternately between the
ports E or F and the introduction or exhaust; D is the piston in two
pieces, containing the steam chest; E, port at the back of piston D ;
F, port leading to the front of piston D; G, cylinder; H, H, stuffing
boxes of the slide valve rod; I, stuffing box of the introduction pipe;
J, stuffing box of the exhaust pipe; K, piston rod; L, lever for regu-
lating the course of the slide valve. This lever can, if required, be
attached to the piston rod. M, guide of the lever, with a stop at each a
end of the course; N, bottom cover of the cylinder; O, top cover of
cylinder.
ACTION OF THE APPARATUS.

page_text: forward with the slide valve C as long as the valve travels as fast as the
piston.
Secondly. If the advance of the slide valve is stopped the piston
continues its course forward, and in so doing the ports get shut and the
piston stops. This always happens at the end of the stroke when the
lever strikes against the stops.
Thirdly. If the lever L is pushed backward then the piston also moves
backward.
Fourthly. Each time that the speed of the piston is getting greater
than that of the slide valve the opening of the ports is reduced, and the
speed of the piston will decrease, so that the piston will always follow
the course of the slide valve and multiply the power of the prime mover
in proportion to the pressure on piston.
This distribution can be used in the construction of steam or water
apparatuses which will produce a power much superior to that of the
prime mover.
This distribution gives the engine an intermittent or alternate motion.
A complete rotative motion each way is obtained by the use of two
inclined engines connected to the same crank shaft by slide valves led by
a crank of the same radius as that of the engines.
The form of the slide valve, the dispositions of the ports, the orifice of
the pipes, the rods, and the levers, as well as their dimensions, may vary
according to the applications or the use of steam, liquids, or any other
prime mover.
In the case of a special disposition the cylinder would be the movable
part, and the piston the fixed one, as the distribution must always be
placed on the movable part and would then be on the cylinder.
In witness whereof, I, the said Albert Sauvée, have hereunto set
my hand and seal, this Nineteenth day of November, in the year
of our Lord One thousand eight hundred and seventy-two.