IMPROVEMENTS IN LOCOMOTIVES AND OTHER RAILWAY CARRIAGES
Year: 1869

page_text: PROVISIONAL SPECIFICATION left by Charles de Bergue and Camillo
Faure at the Office of the Commissioners of Patents, with their
Petition, on the 20th January 1869.
We, CHARLES DE BERGUE and CAMILLE FAURE, both of 10, Strand,
in the City of Westminster, Engineers, do hereby declare the nature of
the said Invention for "IMPROVEMENTS IN LOCOMOTIVES AND OTHER RAILWAY
CARRIAGES," to be as follows :-
One object of thesó improvements is to obtain the requisite grip or
hold upon the rails of a railway by distributing the weight without
unduly loading any individual pair of wheels of the engine, and causing
unnecessary wear of tyres and rails and at the same time to afford
facilities for ascending steep inclines with quick curves or taking heavy
loads on level lines.
It will assist the explanation to bear in mind that in going round
the curves of a railway the length of the inner rail is shorter than that
of the outer, and that when the curves are of short radius the ordinary
direct coupling or connecting rods from wheel to wheel of adjoining
carriages or engine and tender are inadmissable by reason of the varying
length or distance (while travelling) between the wheels to be coupled.

page_text: locomotive by or from cylinders fixed or carried on trunk or frame
resting on the bogey and driving the bogey wheels has been inadmissable
by reason of the varying lengths (while travelling) between the working
parts to be connected or coupled.
Now we believe we have overcome these difficulties, and the Invention
comprises the constructing bogey supported locomotives with cylinders
fixed or carried on the boiler, or trunk, or frame, which rests on a bogey
and with the said cylinders driving the bogey wheels. And the con-
structing locomotives, bogey supported or otherwise, with compound
compensation couplings between the wheels or working parts, which by
connecting rods between them are required to be driven one from the
other, the said couplings permitting or giving out the desired extent or
fixed amount of motion to the wheel or part driven, although the length
between the driving and the driven parts will somewhat vary, also the
working the valve or valves of one cylinder of a locomotive from off the
motion of the piston rod of the other cylinder, and vice versa. And the
mounting on à separate carriage or tender accompanying a locomotive
engine, and to be used therewith, a supplemental or auxiliary steam
boiler and furnace with provision for blast, the said carriage or tender
being without steam cylinders or itsolf not subject to the direct action
of the steam, which is intended for use in the engine proper only, the
steam tender in some cases having its wheels driven to take a grip or
hold on the rails by a system of rocking shafts and levers and connecting
rods from rocking shafts and lovers upon and driven by the engine proper.
And the constructing or arranging rocking shafts to be used for trans-
mitting driving power from cylinders to wheels or from wheels to
wheels whether of engines or tenders, as the case may be, in pairs,
side by side of each other and not in a line one with the other as in
the Invention the subject of Letters Patents No. 982, A.D. 1868, the
present construction or arrangement permitting the said shafts to be
of greater length. And the constructing locomotive engines having two
or more pairs of wheels coupled as driving wheels and having one or
more additional pairs of wheels, so that one of the said lastly-mentioned
pairs may be driven by a pair of steam cylinders or one steam cylinder
additional to and independent of those employed for driving the coupled
wheels. And the constructing or arranging railway carriages which
have the weight supported or mainly supported at two parts or places

page_text: in respect of the length with the one part or place carried on or by a
pair of wheels, or on or by a four-wheeled or other bogey, such wheels
or the wheels of the bogey not being driving or driven wheels, and
with the other part or place carried on by an adjoining engine or
tender or carriage, whose wheels arb driving or driven wheels, and which
aro by this construction or arrangement assisted in their grip or hold
on the rails by the additional weight of the supported carriago and the
varying load it may carry (this improvement is to be understood as
including the construction of the supporting engine, tender, or carriago,
to carry the part or place of the carriago whose weight it partly
supports). And the coupling or connecting together the ends of loco-
motives and tender or of other carriages by a coupling permitting not
only horizontal play and vertical play, but also permitting a sliding
play transversely at or across end of one or of both the carriages
connected.
And the modo of performing the Invention is as follows:-The
cylinders on boiler or trunk or main body of engine may be made to
drive the bogey wheels by the use of the improved compound compen
sation coupling, and this coupling may be effected by two sets of
parallelogramic motions or arrangements of rods or bars, supported on
pivots or centres each respectively upon the driving and driven part,
the two motions or arrangements being employed in combination with
connecting rod or bar between the said parts. And the working of
the valves may be controlled or regulated by the said parallelogramic
motions or arrangements, so as that they may act properly in reference
to the position of the cranks. The steam from the boiler of the steam
tender may be conveyed to the boiler of the engine proper by pipe or
tube couplings jacketted as required. The blast to furnace of tender
may be created by blow-off from exhaust from cylinders, or directly
by steam from its own boiler, or by fan or otherwise, the system of
rocking shafts and levers between engine and tender when employed
being as in the Invention No. 982 above referred to or side by side in
accordance with one special improvement comprised by the present
Invention. When the pairs of rocking shafts are to be used sido by
sido of instead of in line one with the other, care must be taken that tho
length of the connecting rods employed between the levers connected
are so adjusted as to compensate for the difference of position of the
shafts. When additional steam cylinders are employed under the

page_text: circumstances above set forth they are to be outside cylinders if those
on the coupled wheels are inside cylinders, and they are to be inside
cylinders (or one only instead of a pair of inside cylinders) if those for
the coupled wheels are outside cylinders, or they may be all outside
or all inside cylinders. And the valves of the additional cylinders or
cylinder may be worked by levers, tappets, or other apparatus attached
or applied to their own piston rods. It is proposed that the additional
cylinders should be started only after the main or principal cylinders
have put the engine in motion, but in stopping the steam it should be
cut off from all the cylinders at once.
The improved specially supported railway carriage may have an
ordinary pair of wheels or be carried on an ordinary bogey in one part
or place, and at the other position of support be made to rest on
bracketed horns or bed plate projecting from the adjoining engine, or
tender, or the carriage, or otherwise, and with the herein specified
improved or other coupling between them. The improved coupling
for the end of locomotive, tender, and carriages may be made of plates
with lugs or other provision for sliding on rods at or near the ends,
and with pivot or pin joint between plate on one carriage and that on
another.