An Electro Magnetic Apparatus for Actuating Railway Brakes and Switches.
Year: 1895

page_text: Date of Application, 22nd Oct, 1895-Accepted, 30th Nov., 1895
COMPLETE SPECIFICATION.
An Electro Magnetic Apparatus for Actuating Railway Brakes and
Switches.
I CHARLES MELBOURNE WHITE of 27 Southampton Buildings in the County
of Middlesex Patent Agent do hereby declare the nature of this invention &
cominunication me from abroad by The St Louis Brake Company of St Louis
in the State of Missouri in the United States of America and in what manner
the same is to be performed to be partienlaily described and ascertained in and
by the following statement reference being had to the accompanying drawings and
to the figures and reference numbers marked the cou that is to say
-
This invention relates to an electro magnetic apparatus for use in applying
breaks to railway cais and for operating railway switches. An important fenture
of the invention is the construction of the cores in sections which will be alternately
attracted or moved by the current. Another essential feature is the use of such a
core with a muguet or solenoid cylinder having an unobstructed cential opening,
so that the cores will move to a point of equalization within the magnet or cylinder
Another essential feature is the arrangement of cores within the magnet or solenoid
linder having an unobstructed opening, whether such cores are made in sections
or not, and another essential feature is the use of the sectional cores with a
magnet oi solenoid cylinder having a fixed core.
су
Referring to the accompanying drawings
Figure 1 is a top or plan view showing the invention applied to the breaks of a
ailway cal
Figure 11 is an enlarged longitudinal section taken through the magnet or
cylinder and showing one of the coies in section, one in elevation, and both coi es in
the position they occupy when the breaks are released
Figue II is a similar view to Figure 11 but showing the cores in the position
they occupy when the breaks are applied.
Figure IV illustrates the same aliangement as that shown in Figures II and [[I
except that instead of making the cores in sections they are made solid.
Figure Vis a top view showing the invention applied to a railway switch.
Figue VI is a view partly in elevation and partly in section illustrating a
construction where the cores are made in sections as in Figures 11 and TI,
but instead of being a ranged in a single cylinder having an unobstructed cole,
each is aanged in a separate cylinder having a fixed magnet.
1 represent a pair of car trucks which may be of any ordinary construction of
form and which are supplied with the usual break mechanism 2 represents an
electro magnet on solenoid cylinder, and 3 are cores fitting within the magnet and
atranged a sufficient distance apart, so that when they are in their outer or normal
position, when the breaks are applied, there is a spare 4 between the inner ends of
Each core is
the cores to give the necessary movement for applying the breaks
provided with a suitable means 5 for attachment to the break levels 6.
7 represents a rheostat for controlling the flow of the elective current, and this
The
rheostat may be of any well known o desuable form of construction.
cylinder o magnet 2 is so wrapped as to cause the cores 3 to approach each
other when the curent is turned on. As the cores approach, then affinity for
each other increases as they come close together, and the breaks are thus applied
o the switch operated with great force, and with an equal force upon each break
for the reason that the cones move to a point of equalization within the cylinder of

page_text: While the cores may be made solid as shown in Figure IV it is preferred to
form them in sections, as shown in Figures II and III. These sections are
represented by the numbers 8, 9 and 10, the rods or connections 5 being made fast
to the outer section 10 of each core. The sections of each core are connected
together by bolts 11, the bolts being tapped into one of the sections, and their
heads fitting in sockets in the adjatent section, as clently, shown in Figures II and III.
The headed ends of the bolts fit loosely in their sockets so as to permit of the
sections closing up as shown in Figure III 12 represents springs surrounding the
rods 5 within the hends 13 of the cylinder, and which serve to cushion the cores in
their outward movement
In operation, the current being turned on, the sections of the cores will be
diawn inwardly and will be caused to close up as shown in Figure III. By
providing the sectional cores it will be seen that the inner sections will be near
the centre of the magnet before the current is turned ou and that the outer section-
are but a short distance therefrom, so that while the sections have individually bat
a short distance to travel then closing up causes a considerable movement of the
rods 5.
In the construction shown in Figures V and VI and which is particularly adapted
for moving alway switches, there is shown the sectional cores, but they are
arranged with separate cylinders or magnets 2, and the two cores are connected
by a rod 14 having a lack 15 engaging a pinion 16, having a crank and rod
connection 17 with the switch. In this aangement there is also shown the
spings 12 and the heads 13 shown in Figures II and III but instead of using the
cylinder having an unobstructed cential opening there is employed at the outer
end of each cylinder a fixed core 18 against which the sections of the moveable
cores close up alternately when the direction of the current is 1eversed
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I clann 15-
1. In an electro-magnetic apparatus for moving a ailway breaks and switches, the
combination of a magnet having an unobstinted cential opening, and cores formed
in sections moveably secured together and arranged within the magnet, substantially
as set forth.
2. In an electio-magnetic apparatus for moving railway breaks and switches, the
combination of an electio-magnet having an unobstructed cential opening, and
two separate cores aanged within the opening in the magnet and adapted to
approach each other by moving opposite directions within the magnet to a
point of equalization, substantially as set forth.
3. In an electro-magnetic apparatus for moving railway breaks and switches, the
combination of a magnet, and a core ananged within the magnet and formed in
sections moveably connected together, substantially as set forth.
4. lu an electio-magnetic apparatus for moving tailway switches and breaks the
combination of a magnet, a fixed core alianged within the magnet and a moveable
core ananged within the magnet and formed in sections moveably connected
together, substantially as set forth.
5. In an electro-magnetic apparatus for moving railway breaks and switches, the
combination of a magnet, sectional cores arranged within the magnet, and mean
for connecting the sections together consisting of bolts having heads fitting
sockets in the sections, substantially as and for the purpose set forth
Dated tlus 22nd day of October 1895.
WHITE & WOODINGTON,
27 Southampton Buildings, London, Agents.