Improvements in and Connected with Coupled or Twin Locomotive Engines.
Year: 1888

page_text: Date of Application, 24th Oct., 1888
Complete Specification Left, 4th June, 1889-Accepted, 13th July, 1889
PROVISIONAL SPECIFICATION.
Improvements in and Connected with Coupled or Twin Locomotive
Engines.
We HARRY LIVESEY of the firm of James Livesey & Son of 2 Victoria Mansions
Victoria Street in the City of Westminster Civil Engineers and HERMANN LUDWIG
LANGE Engineer to Messrs. Beyer Peacock & Co. Limited of Gorton Foundry
Manchester in the County of Lancaster do hereby declaro the nature of this Inven-
tion to be as follows:-
This Invention has for its object to provide an improved arrangement of coupled or
twin locomotive engines which has great tractive power and which will run round
sharp curves with facility.
According to this Invention the coupled or twin locomotive engines which are
connected together tandem fashion with their fire boxes in proximity and provided
with a platform or platforms for engine driver and stoker within easy reach of which
are the devices or handles by which the steam regulators reversing gears and brakes
are operated the operating connections of the said regulators gears and brakes of each
engine being coupled together by universally coupled connections so that they are
for both engines simultaneously operated by one handle or device for each purpose.
Each engine is provided at the underside at or about the centre of its length and
width with means for connecting a coupling bar or link the connection being such,
that the engines can readily take the relative positions necessary on account of
difference in level of or curvature in the line.-Other bars or links may be connected
at or near the points of attachment of the first named bar or link for the connection
of the carriages or trucks of the train. The fire box ends of the respective engines
where they meet are so shaped as to allow the engines to move laterally relatively
to each other in running round curves and they are provided with buffer or bearing
blocks which meet and abut against each other to give steadiness whilst allowing of
the free movement of the engines relatively to each other. The platforms may be
covered by a cab extending one over each fire box and provided with an overlapping
plate to form virtually one cab. The platforms also meet and by means of covering
plates form virtually one platform. The adjacent ends of the two engines may be
provided with intervening springs which will accommodate movement of the engines
vertically and give steadiness when running at high speeds.
If necessary to accommodate the aforesaid connecting bar or link the furnace bars
may be of saddle shape or they may be situated higher than usual.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in and Connected with Coupled or Twin Locomotive
Engines.
We HARRY LIVESEY of the firm of James Livesey & Son of 2 Victoria Mansions
Victoria Street in the City of Westminster Civil Engineers and HERMANN LUDWIG
LANGE of Gorton Foundry Manchester in the County of Lancaster Civil Engineer
do hereby declare the nature of this invention and in what manner the same is to
be performed to be particularly described and ascertained in and by the following
statement:-
This Invention has for its object to provide an improved arrangement of coupled

page_text: or twin locomotive engines with great tractive power and with great facility for
running round sharp curves.
Figure 1 of the accompanying drawings is a side elevation and Figure 2 a plan of
engines arranged according to this Invention. Figure 3 is a sectional elevation,
Figure 4 a sectional plan and Figure 5 a part end view drawn to an enlarged scale
and shewing more in detail the arrangements at the parts where the engines meet
and are connected together.-Figures 6 and 7 are views corresponding to Figures 1
and 2 but with a modified arrangement of connecting device.
According to this Invention the coupled or twin locomotive engines are connected
together tandem fashion with their fire boxes A A in proximity and provided with a
platform or platforms B B for engine driver and stoker, within easy reach of which
are the devices or handles by which the steam regulators reversing gears, brakes and
sand boxes are operated, the operating connections of the said regulators, reversing
gears and brakes and sand boxes of each engine being coupled together by universally
coupled connections so that these mechanisms on both engines can be simultaneously
operated from either engine as hereinafter described. Each engine is provided at the
underside at or about the centre of its length and width as shewn at C. C. Figures 1
and 2, with means for connecting the two engines together by a coupling bar or
link D, the connection being such that the engines can readily accommodate them-
selves to differences in level and curvature in the line. Other bars or links E may
be connected at or near the points of attachment C of the bar or link D for coupling
the engines to the carriages or trucks of the train. The frames F F and plat-
forms BB as the fire box ends of the respective engines where they meet are so
shaped as to allow of the engines moving laterally relatively to each other in running
round curves and they are provided with buffer or bearing blocks H which meet
and abut against each other to give steadiness, whilst allowing of the free movement
of the engines relatively to each other. The platforms B B may be each covered by a
cab II extending one over each fire box and provided with an overlapping plate K to
form virtually one cab. The platforms B B nearly meet and by means of a covering
plate L form virtually one platform. The adjacent ends of the two engines may be
provided with springs placed between the connecting har and frames as shewn at M
Figure 3 the object of which is to retard the vertical movement of the firebox ends of
each engine and give steadiness when running, at high speeds. If necessary in
order to accommodate the aforesaid connecting bar or link D the furnace bars and
bottom of fireboxes may be of saddle shape as shewn at N Figure 5 or they may be
situated higher than usual, or the arrangement shewn in Figures 6 and 7 may be
used wherein the connecting bar or link D by which the two engines are coupled
together is connected to cross pieces (secured to the framing and situated at such a
low level that the connecting bar or link D clears the fire, boxes situated at the
ordinary level, the bars or links E by which the attachment of the engines to the
train is effected, being connected to cross pieces P secured to the framing at a higher
level than the cross piece C as shewn in Figure 6.-0 are springs carried by the
coupling rods D and E to counteract the effect of jerks. To enable the two
engines to be simultaneously started or stopped from either engine the starting
levers of both engines are connected by rods R R to arms S S on a rod or shaft T
which is arranged longitudinally in the centre of the roof of the cab. This rod T is
provided at each end with a spherical projection or ball U working in corresponding
sockets or bearings V,so as to admit of the motions of the engines without injuring
or disarranging the coupling. It will be seen that when the lever Q of one engine
is moved to operate its valve a corresponding movement will be given through the
rods R R and shaft T to the lever Q of the other engine so as to operate the valve of
the said engine.-W W are the handles of the reversing mechanism of the two
engines the worm shafts or spindles X X of which carry bevel wheels Y gearing with
corresponding bevel wheels Y2 on a rod or spindle Z arranged in a diagonal direction
beneath the platforms or foot plates B B of the engines as shown in Figure 4 so that
upon turning the handle of the reversing mechanism on one of the engines motion
will be transmitted through the gearing Y Y and rod Z to the reversing mechanism

page_text: on the other engine. The rod Z is provided with universal joints at a and a sliding
sleeve to admit of the various motions of the engines. The brakes of both engines
may also be worked from either engine, the brake cylinders b on both engines being
connected together by pipes c coupled by universal joints as at d d to permit of the
various motions of the engines.ee are the handles by means of either of which
steam may be simultaneously admitted to or cut off from the brake cylinders b on both
engines, the steam when admitted passing to the cylinders on both engines through
the pipes c.
We have referred to the brakes as steam brakes but it is obvious that
vacuum brakes and mechanical brakes may be arranged to operate in a similar
The sand distributing mechanism of both engines may be similarly operated
from either engine.
manner.
The various couplings for connecting the two engines and the operating mechanisms
are capable of being readily detached when it is desired to use the engines singly or
for the purpose of connecting them to the other engines.
Having now particularly described and ascertained the nature of our said Inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. The method of coupling two locomotive engines together tandem fashion by
means of a bar or link passing under the fire boxes (with or without springs to
counteract the effect of jerks) and attached at or near the centre of the wheel base
of each engine substantially as herein before described.
2. In twin or coupled locomotive engines connected together by a bar or link
passing under the fire boxes as herein before described means for coupling the
operating parts of the engines so that the two engines can be manipulated simul-
taneously from either engine for reversing and regulating the steam, in combination
or not with means for simultaneously operating the brakes of both engines substan-
tially as heretofore described.
3. Twin or coupled locomotive engines each engine being complete in itself but
connected together so that both engines may be simultaneously manipulated from
either engine for regulating and reversing the steam, and capable of being separated
from each other so as to be used as single engines, or coupled to other engines to form
twin engines, substantially as hereinbefore described with reference to the accom-
panying drawings.
Dated this 4th day of Inna 1889