Improvements in Coupling Apparatus for Railway Rolling Stock.
Year: 1899

page_text: Date of Application, 18th Apr., 1899-Accepted, 24th June, 1899
COMPLETE SPECIFICATION.
Improvements in Coupling Apparatus for Railway Rolling Stock.
I, EMERICH VON MARSOVSZKY, of Felsöerdösor No. 25, Budapesth, Hungary,
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 arrangements of the ordinary screw couplings
for railway rolling stock now in use, such that there can be used in conjunction
therewith any description of automatic coupling devices thus enabling the
advantages of the automatic system to be applied without necessitating a dis-
turbance of the traffic for the conversion of the ordinary coupling system into an
automatic system, which would otherwise be necessary.
By the application of my improved construction, railway vehicles can be coupled
either by the old couplings or by the automatic system employed. Various
arrangements of a more or less complicated nature have been proposed for this
purpose, but no means have been shewn whereby the ordinary screw coupling
could be prevented from interfering with the proper action of the automatic
coupling.
My invention is based upon the general idea of so arranging the ordinary screw-
coupling that it can be moved out of the way of the automatic coupling device
for which purpose the draw hook is so arranged that it can, at will, be moved
out of the ordinary position into a different one. Various arrangements can be
employed for carrrying out this invention; I will proceed to describe some of
these by way of example with reference to the accompanying drawings. In
the arrangement shewn in side and front view at Figs. 1 and 2, the ordinary
coupling is moved out of the way of the automatic coupling by arranging the
coupling links B C of the former so that they can be turned through a vertical
plane round the longitudinal axis of the draw hook A and be hung up in any
convenient manner. For this purpose the stem of the draw hook is formed with
a swivelling loop at a which is rotatably connected to the draw bar 1) and is
secured by a screw nut on the end of the latter. Figs. 3 and 4, shew a longi-
tudinal section and cross section on line 44 Fig. 3 of a modification in which
the stem of the draw hook A is formed with a cylindrical enlargement which
can turn through a certain angle in a socket d fixed to the end of the draw bar 1),
but which is prevented from being drawn out by a pin a extending transversely
through the enlargement a and through two quadrantal slots in the socket d.
These slots are so formed that the draw hook can be turned round on its axis through
a certain angle, while the section of the metal left in the periphery of the socket d
between the slots is amply sufficient for affording the necessary strength for with-
standing the tensile strain to which the hook is subjected. The pin a is prevented
from falling out of the enlargement a and socket by the outer socket E sur-
rounding the latter and fixed to the end plate F of the frame. Figs. 5 and 6
shew a front and side view of an arrangement in which the draw hook can be
turned through an angle of 90° or nearly so round a vertical bolt.
For this purpose the draw hook A has its stem formed with a fork a and the

page_text: draw bar with an enlargement through which and through the fork a 13
passed a bolt a', so that the draw hook A can be turned on this bolt a in a
horizontal direction as indicated by the dotted position in Fig. 5. For allowing
this motion of the draw hook A and links B C the end plate F of the carriage
frame is formed with an opening f of corresponding size.
Figs. 7 and 8 shew in vertical section and horizontal section a modification of
the last described arrangement in which the draw hook A has its stem a formed
with an elbow and is pivoted at its end to a pin a² carried by the forked end d
of the draw rod ID); the stem a is secured in the position shewn in full lines by
a bolt a passing through holes in the fork d, and through a hole in the elbow
of the stem. When the hook and links are to be turned aside, the bolt a' is
removed, and the hook and its stem are turned on the pin a² into the dotted position
Fig. 8 in which position they can be secured by passing the bolt a through the
front holes of the fork, and through the hole in the elbow of the stem, when
brought in line with the holes d².
In the modified arrangement of Figs. 5 and 6 shewn in sectional side view
and plan at Figs. 9 and 10 the stem of the draw hook A is pivoted by the eye a
en a horizontal pin al in the fork d of the draw bar D, so that the hook can be
turned in a vertical plane instead of in a horizontal plane.
In the arrangement at Fig. 11 the draw hook can be turned both in a horizontal
and a vertical direction, as in a similar manner to the arrangement at Figs. 3 and 4.
For this purpose a connecting piece G is provided between the draw hook A and
draw bar 1, having forks g g¹ formed at right angles to each other, through the
eyes a and of which are passed respectively bolts a¹ and d¹.
When the draw hook is to be turned out of the way, it is turned first upward
or downward on the pivot bolt a¹ and then horizontally to the right or left on
pivot d¹.
In the arrangement shewn in horizontal section at Fig. 12, the screw coupling
is so arranged that it can be shifted horizontally in a longitudinal direction. The
end plate of the carriage frame is for this purpose formed with an opening in
which is fixed a tube H having at its front end an upward projecting rim h. The
tube H is of a sufficiently large internal diameter to receive the entire screw
coupling A, B, C freely moveable therein.
The screw nut a of the drawhook bears upon the spring K the abutment of which
is in form of a disc I which can slide backwards and forwards in the tube H.
When the screw coupling A, B, C, is to be used, it is drawn out of the tube H
until the disc I bears against the rim h, whereupon the pull exerted on the draw-
hook A will be transmitted through spring K to disc I and thence through tube H
and plate to the carriage frame.
It
It will be seen that a screw coupling of the above described construction can be
rapidly and reliably moved out of the way of the automatic coupling provided
on the carriage so that the automatic coupling to be employed can be mounted
on the carriage without requiring the previous removal of the screw coupling.
will also be seen that the coupling devices forming the subject of the present
invention have no necessary connection with the automatic coupling and that,
unlike the proposals that have heretofore been made with the above object, the
application of the present invention is not confined to the use of any particular
construction of automatic coupling.
As before stated, the arrangements herein described with reference to the accom-
panying drawings only serve as examples of the mode of carrying out the inven-
tion, and various other modified constructions may be employed in carrying the
said invention into practice.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I declare that what I claim is ; —
1. Arranging the screw couplings of railway vehicles so that they can be moved
out of the way of automatic couplings fixed on the same vehicle by so constructing

page_text: them that the ordinary drawhook A with parts connected thereto can be shifted
or turned on any one or more of the three co-ordinate axes thereof, substantially
as described.
2. A screw coupling such as is referred to in the first claim, wherein the draw-
hook A has a swivelling connection with the draw bar D, substantially as described
with reference to Figs. 1 and 2 of the drawings.
3. A screw coupling such as is referred to in the first claim, wherein the draw
hook A can be turned upon a vertical pivot a¹ substantially as described with
reference to Figs. 3 to 8 of the drawings.
4. A screw coupling such as is referred to in the first claim wherein the draw-
hook A can be turned upon a horizontal pivot a arranged transversely to the
draw bar, substantially as described with reference to Figs. 9 and 10 of the draw-
ings.
5. A screw coupling such as is referred to in the first claim wherein the draw
hook A can be turned both upon a horizontal pivot a and a vertical pivot d³, sub-
stantially as described with reference to Fig. 11 of the drawings.
6. A screw coupling such as is referred to in the first claim, wherein the draw-
hook A and parts connected therewith can be shifted longitudinally in or upon
a suitable guide such as I-H, its forward motion being limited by a fixed abut-
ment such as h, substantially as described with reference to Fig. 12 of the drawings.
Dated this 17th day of April 1899.
ABEL & IMRAY,
Agents for the Applicant.