Improvements in the Constrnction of Railway or similar Carriages.
Year: 1888

page_text: Date of Application, 30th Aug., 1888
Complete Specification Left, 21st May, 1889-Accepted, 20th July, 1889
PROVISIONAL SPECIFICATION.
Improvements in the Constrnction of Railway or similar Carriages.
We MICHAEL HOLROYD SMITH of Royal Insurance Buildings Halifax in the
County of York Engineer and LEE LA TROBE BATEMAN of 18 Abingdon Street in
the City of Westminster Engineer, do hereby declare the nature of this invention to
be as follows :-
Our invention relates to improvements in the construction of railway or similar
carriages or cars, the class to which it particularly relates being those in which the
wheels are arranged in bogio frames at each end of same though part of the invention
is adapted to carriages or cars of other construction.
In some cases it is desirable to keep the floor level down as low as possible and to
this end one portion of our invention consists in forming a closely and low built
bogie frame to carry the wheels.
For this purpose we arrange the main side frame or beams of the bogie beneath
the axles of the wheels, the journals of which are carriel in suitable boxes so bolted or
secured upon same that they can be readily removed and the axle and wheels run out
for inspection or repairs.
The cross beams of the bogie frame we space apart and suitably connect in the
centre to support the pivoting pin of the cross bearing beam of the carriage frame
which can thus be brought down low between them.
The usual longitudinal main beams for the carriage are employed but we prefer to
place the flooring of the car below same instead of above as is customary, this of
course necessitating the entrance doors of the carriage being placed at the ends of
same, to allow of which we place the transverse end beams of the carriage below the
two side ones so that a clear footway is provided.
Where long cars are employed having end entrances the end abutting platforms of
each are usually curved or bevelled off to allow of the cars passing readily around
curves while the couplings are carried by such ends.
We propose for the sake of compactness and to provide ample entrance room to
connect any two adjacent cars by a single platform coupling.
This consists of a platform passing under the end framework of the two cars and
being attached by suitable angle bars or rods to pin connections beneath the cars
and as near to the pivot points of each bogie frame as practicable, suitable buffer or
draw bar springs being placed at some point on same. The platform is suitably
supported upon cross bars to allow it to carry the weight likely to come upon it. In
this way the ends of the cars when going around curves can move to any extent over
the platform.
Where end doors have to be provided for the carriages we prefer to employ two
curved doors, sliding and capable of passing one another in a semi-circular covered
framework outside of the car. These doors may be arranged to be kept normally
closed by a cord and weight attachment or by other suitable means.
For the purpose of keeping them open we place a small stop in the floor or grooves
in which they run, which will catch and hold them when in that position. Beneath
each of these stops is an electro-magnet which would be under the control of the
conductor or driver so that on leaving a station for instance they could be operated
to draw the floor stops down and thus release the doors and allow them to close
automatically.
D
11
0001 1
A
- 1000
PHILIP M. JUSTICE,
55 & 56, Chancery Lane, London, Agent for the Applicants.

page_text: Fig. 5 Is a partial plan of Fig. 4.
In all the drawings like figures are used to represent like parts. To avoid
complication of drawing bolts rivets & pins are frequently omitted or indicated only
by lines & circles.
In figs. 1 & 2 A. A' are the carriages coupled together by the platform coupling 1
consisting of a framework preferably of wrought iron or steel boarded over on the
part that lies between two cars whilst the part beneath the cars is bent to clear the
axles 2 and preferably of triangular form (see fig. 5); the ends of the triangular
frames are attached to the well known device of spring buffer 3 which is susceptible
of extension or compression as occasion requires, this spring buffer is pivotted at or
near the point 4 to a bracket secured to or forming part of the transoine beam 5 of
the car.
The platform may be in two halves each half forming a component part of its
respective carriage as shown in figs. 1 & 2 in this case the carriages are coupled by
the bolts 66 or other like device; or the platform may be a distinct whole in which
case the couple is made by attachment to the triangular frames as shown in
figs. 4 & 5 at 7. 7.
The frame of the platform is allowed to rest upon the cross frame of the bogie an
india-rubber or other spring & being introduced to prevent jarring. By this arrange-
ment when the cars are going round curves the ends are free to move to any extent
over the platform.
For
It sometimes happens from extraneous causes that the ordinary hinged or sliding
doors are difficult to adopt, we therefore prefer to employ two curved doors 91 9
sliding and capable of passing one another in a semi circular covered framework 10-10
forming a vestibule outside the car. These doors may be arranged to be kept
normally closed by a cord and weight attachment 11 or other suitable means.
the purpose of keeping the doors open (when required, so to be for the entrance and
exit of passengers or other purposes) we place a small catch 12 in the grooves in
which they run which will catch and hold them when in that position until the catch
is lifted by the armature 13 being attracted by the magnet 14 Fig. 3, or until by
turning or pulling the handle of the door the bolt 15 is lowered when the door can be
shut by hand or will be drawn and closed by the weight and cord 11. The action of
the magnets 14 would be under the control of the driver or conductor of the train
thus dispensing with the necessity of employing porters or others to close the doors of
the carriages when the train is about to start.

page_text: In order to bring the floor of the carriage as low as possible we construct the
bogies as shown in figs. 1, 4, 5. The general principle being perhaps sufficiently
shown in fig. 1. Figs. 4 & 5 being added to show more clearly how the principle can
be reduced to practice.
It will be seen that the main side frame or beams 16 pass beneath the axles 2. 2
of the wheels the journals of which are carried by the casting 17, having flanges or
footsteps upon which rest the springs 18 pressing against the strap 19 made
preferably of wrought iron, and bolted as shown to the frame or beams 16. It will
be seen that by packing under these beams and taking out the bolts the wheels
and axle with the journals etc. can be easily run out for renewals or repairs.
The cross beams 20 of the bogie we space apart (figs. 1, 4, 5) and suitably connect
them at the centre to support the pivoting device and pin 21. The bearing beams 5
of the carriage frame can thus be brought low, they might if necessity required it be
brought down until they touched or slided upon the main bogie beams 16.
The spacing of the beams 20 will be governed by the curves upon which the
carriages are required to run, they also take the place of the ordinary check chains.
To show that this design permits of the application of continuous brakes they are
shown in Fig. 4 being the rods the levers and c the chain.
The usual longitudinal main beams 23 for the carriage are employed but we prefer
to place the flooring of the car below the same instead of above as is customary, this
necessitates the transverse end beams 24 of the carriage being placed below the two
side ones so that a clear footway is provided.
It is obvious that though the curved sliding doors, platform couplings and special
bogie, form a complete whole yet one or any of these devices can be used separately.
Having now particularly described and ascertained the nature of our inven-
tion and in what manner the same is to be performed we declare that what we
claim is-
1. Railway or other carriages constructed and equipped substantially as and for the
purpose herein illustrated and described.
2. Bogies for railway or other carriages with side beams passing below the axles
and having the journals attached to the upper side thereof substantially as and for the
purpose illustrated and described.
3. In Bogies for railway or other carriages the combination of under axle side
beams and swung journals and spaced transverse beams substantially as described.
4. Bogies for railway or other carriages with transverse supporting beams spaced
sufficiently wide apart to admit of the transverse car beam lying & pivoting between
them and moving in an are sufficient for the curves required.
5. In Railway or other carriages the construction & employment of platform
couplings, substantially as and for the purpose described.
6. In Railway or other carriages curved sliding doors substantially as and for the
purpose illustrated and described.
7. The combination of electro magnets with springs, bars catches or other similar
device, for holding & releasing doors substantially as illustrated & described.
Dated this 20th day of May 1889.
M. HOLROYD SMITH.
LEE LATROBE BATEMAN.