IMPROVEMENTS IN LOCOMOTIVES
Year: 1882

page_text: LETTERS PATENT to William Robert Lake of the Firm of Haseltine, Lake,
& Co., Patent Agents, Southampton Buildings, London. for an Invention of
"IMPROVEMENTS IN LOCOMOTIVES." A communication from abroad by
Messieurs Debarnot & Jacquot, both of Paris, France.
COMPLETE SPECIFICATION filed by the said William Robert Lake at the
Office of the Commissioners of Patents on the 14th April 1882.
"
WILLIAM ROBERT LAKE, of the Firm of Haseltine Lake, & Co., Patent Agents,
Southampton Buildings, London " IMPROVEMENTS IN LOCOMOTIVES
A com-
munication from abroad by Messieurs Debarnot and Jacquot both of Paris,
France
This Invention relates to improvements in locomotives and consists chiefly in
arranging the axles of the wheels above the boiler
This arrangement admits of the speed of the pistons and other moving parts of
the engine for a given speed of the locomotive being much reduced on account of
the increase in diameter which may be given to the wheels, their axles being placed
at the upper part of the locomotive; and by allowing the pistons the speed at
present used a greater speed than usual may be imparted to the locomotive. The
arrangement of the parts of a locomotive constructed according to the said Invention
may obviously be varied according to the use for which it is designed; but in
order that the said Invention may be more clearly understood I have shewn in the
accompanying Drawing one form of locomotive constructed according to the said
Invention.
In the accompanying Drawing
Figure 1 shews a side elevation of the locomotive and
Figure 2 shews a plan or top view of the same.
Like letters indicate the same parts throughout the Drawing
a a' are the locomotive, wheels, of which a only are driving wheels b is the
shell of the boiler which is suspended from the axles by means of the springs c and

page_text: suitable axle boxes. d is the fire box, c the frame of the locomotive and ƒ a hand
rail fixed to a platform to allow the engine-driver to walk around the locomotive
in order to examine and lubricate the several parts of the same, g is the tender,
the front part of which only is shown in the Drawing; the arrangement of this
tender as regards the water and coal supply may be varied as required; and its
front part, together with the rear part of the locomotive, constitutes the platform
upon which stand the driver and stoker.
The total length of the engine and tender being considerable, these parts are
united by means of extension plates h pivoted on a bolt i, thus forming a pivoted
joint around which the engine and tender may turn when the train is running on
a curve.
The arrangement of the several working parts of the engine (which are similar
to those commonly used) may be clearly understood by reference to the Drawing.
7 indicates the cylinders, the piston-rods connected with the crauks m of the
driving axle, n the slide-valves, o, the excentric rods actuating the same, p the
steam supply-pipes for the slide-valves; 7 a communication between the two steam-
chambers of the boiler; the safety-valves and s the steam-whistle; t indicates the
link-motion-the-hand-lever, and the connecting rods and levers for actuating
the link-motion by hand-;-, indicate the suction and delivery-pipes-for-the-
feed-water, the feed-pumps driven by the rods y pivoted on a cross-bar z.
The action of the above mentioned parts does not require any special description
as it is well known.
Having thus fully described the said Invention as communicated to me by my
foreign correspondents and the manner of performing the same, I wish it understood
that I do not limit myself to the precise details herein shown and described as the
arrangement of the several parts of the engino inay be varied to suit the different
purposes-to-which the said engino is to be applied without in any way changing
the nature of the said Invention, for instance the number-of-the-driving-axles_may_
be varied, as well as the form and size of the boiler aud of the several parts of the
mechanisin, but I claim.
First. A locomotive in which the axles of the wheels and other parts of tho
mechanism are situated above the boiler, substantially as above set forth.
Second. In a locomotive in which the axles of the wheels and other parts of the
mechanism are situated above the boiler, the combination with the said axles, of
the springs and suitable axle boxes whereby the boiler is suspended, substantially,
as and for the purposes set forth.
Third. The combination with a locomotive in which the axles are placed above
the boiler, and with its tender, of a pivoted joint uniting the same, substantially as,
and for the purpose set forth.
In witness whereof I the said William Robert Lake havo hereunto set my
hand and seal this Fourteenth day of April in the year of our Lord One
thousand eight hundred and eighty two.