AN APPARATUS TO REGULATE AND MODERATE THE SPEED OF STEAM and HydraULIC ENGINES OF EVERY SYSTEM
Year: 1878

page_text: LETTERS PATENT to John Landale Hall and Edwin Wells Windsor, Engine
Manufacturers, of Rouen, Department of Seine Inférieure, in the Republic of
France, for the Invention of "AN APPARATUS TO REGULATE AND MODERATE THE
SPEED OF STEAM and HydraULIC ENGINES OF EVERY SYSTEM."
Sealed the 31st May 1878, and dated the 18th March 1878.
PROVISIONAL SPECIFICATION left by the said John Landale Hall and
Edwin Wells Windsor at the Office of the Commissioners of Patents on the
18th March 1878.
John Landale HALL and EDWIN WELLS WINDSOR, Engine Manufacturers, of
Rouen, Department of Seine Inférieure, in the Republic of France. " AN APPA-
RATUS TO REGULATE AND MODERATE THE SPEED OF STEAM AND HYDRAULIC
ENGINES OF EVERY SYSTEM.”
The distinctive feature of our Invention consists in the application of an auxiliary
cylinder to steam engines for controlling the expansion gear, the passages and pipes,
the distributing valve and its gear, being arranged as shown in Figure 1 of the
accompanying Drawing, upon which,―
A indicates the cylinder of the apparatus.
B, the piston with its rod.
C, distributing valve or cock.
D, cross piece fixed upon the rod of the piston B for giving the controlling move-
ment to the expansion gear of the engine.
E, slide. actuating the cock or valve C and worked by the governor of the
engine.
F, pipe leading to the condenser of the engine.
G+, suction pipe.
The action of the apparatus is as follows:-When the governor opens the dis-
tributing valve the piston falls, and when the governor shuts the distributing
valve the piston rises and causes the expansion gear of the engine to vary so as to
give more or less steam to the engine, as may be required.
[Price 6d]

page_text: We apply this Invention to all kinds of steam engines, water wheels, and
turbines, by changing the arrangement of the pipes F and G according to
requirement.
In water wheels and turbines the apparatus is worked as above described, and
acts upon the regulating valves.
We have the right to vary the shape, dimensions, style, and the relative positions
as well as the number of the parts; also the choice of materials for constructing our
apparatus, and the use of air and liquids for the cylinder of our apparatus as we
may find desirable while preserving the principle of our Invention.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Jolin Landale Hall and Edwin Wells Windsor in the Great Seal
Patent Office on the 17th-September 1878.
JOHN LANDALE HALL and EDWIN WELLS WINDSOR, Engine Manufacturers, of
Rouen, Department of Seine Inférieure, in the Republic of France. " AN APPA-
RATUS TO REGULATE AND MODERATE THE SPEED OF STEAM AND HYDRAULIC
ENGINES OF EVERY SYSTEM."
The distinctive feature of our Invention consists in the application of an auxiliary
cylinder to steam engines for controlling the expansion gear, the passages and pipes,
the distributing valve and its gear, being arranged as shown upon the accompanying
Sheet of Drawing, upon which,
A indicates the cylinder of the apparatus.
B, the piston with its rod.
C, distributing valve or cock.
D, cross piece fixed upon the rod of the piston B for giving the controlling move-
ment to the expansion gear of the engine.
E, slide actuating the cock or valve C and worked by the governor of the
engine.
F, pipe leading to the condenser of the engine.
G, suction pipe.
The action of the apparatus is as follows:-When the governor opens the dis-
tributing valve the piston falls, and when the governor shuts the distributing valve
the piston rises and causes the expansion gear of the engine to vary so as to give
more or less steam to the engine, as may be required.
We apply this Invention to all kinds of steam engines, water wheels, and
turbines, by changing the arrangement of the pipes F and G, according to
requirement.
In water wheels and turbines the apparatus is worked as above described, and
acts upon the regulating valves.
Having now described and ascertained the nature of our said Invention and in
what manner the same is or may be performed, we would have it understood that we
reserve the right to modify and vary the shape, dimensions, style, and the relative

page_text: positions, as well as the number of the parts, and the choice of materials for con-
structing our apparatus, and the use of air and liquids for the cylinder of our
apparatus, as we may find desirable while preserving the principle of our Invention,
and that what we claim as of our Invention and secured to us by the herein-before in
part recited Letters Patent is, the combination of an auxiliary cylinder with the
distributing valve and gear of steam and hydraulic engines, substantially as and for
the purpose herein-before specified.
In witness whereof, we, the said John Landale Hall and Edwin Wells Windsor,
have hereunto set our hands and seals, this Ninth day of September,
in the year of our Lord One thousand eight hundred and seventy-
eight
JOHN LANDALE HALL
(L.S.)
EDWIN WELLS WINDSOR. (L.S.)