Improvements in Railway Carriage Couplings.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Railway Carriage Couplings.
I, PETER JENSEN, of 77, Chancery Lane, London, W.C., Chartered Patent
Agent, do hereby declare the nature of this invention (a communication to me
from abroad by Minhard Otto Petrich, of Zwickau, Saxony, German Empire,
Works Manager, and Paul Ehrhardt Petrich, of Radeberg, Saxony, aforesaid,
Builder) to be as follows:-
-
Couplings constructed according to this invention are worked from the sides
of the carriages by means of a crank rotatable in an eye in the hook fixed to the
buffer beam, so that both the engaging of the coupling link with the hook and
the tightening up are effected thereby, thus rendering this coupling extremely
simple and safe in action as compared with existing ones.
A crank has the bearing of its central gudgeon horizontally in the hook and
on its end gudgeons is mounted loosely the coupling link on the smaller square
prolongation of each end gudgeon is fixed a countercrank having a square gudgeon
upon which fits the square socket of a spindle; these spindles have their bearings
on the buffer beam and on their outer ends are fixed hand levers. On the body
ends of the crank are mounted the outer eyes of the coupling link, and these eyes
have underneath flat faces against which the side limbs of the crank bear. The
inner sides of the eyes coupling link at the other end have clutch teeth which
engage with an intermediate piece when the coupling link is brought into the
horizontal position. The link and the intermediate piece are jointed together
by a bolt. The other end of the intermediate piece has also an eye jointed by a
bolt to the catching link or loop which is formed with counterbalancing_prolon-
gations with weights and is normally kept in the horizontal position. The eye
of this intermediate piece and the eyes of the loop have also clutch teeth so arranged
that the loop is kept in the stretched out or rigid position with the link as soon
as it rises above the horizontal position. The space between the two sides of the
link is so large that the usual safety hook with loop can readily drop through.
The action of this coupling is as follows. By turning one of the lateral hand
levers the coupling link and the catch loop are brought into the stretched out or rigid
position raised a little above the horizontal and hooked into the hook of the other
carriage. The hand lever is then turned in the opposite direction whereby the
carriages are drawn together to the extent of double the length of the crank.
As soon as the crank strikes against the aforesaid flat faces of the link it is secured
in position at the dead point. For disengaging it is only necessary to swing the
hand lever smartly up," whereby it falls back into its position of rest and the
coupling folds up.
1. 17
.
100%
JENSEN & SON.
77, Chancery Lane, London, W.C.,
Patent Agents.

page_text: Improvements in Railway Carriage Couplings.
I, PETER JENSEN, of 77, Chancery Lane, London, W.C., Chartered Patent
Agent, do hereby declare the nature of this invention (a communication to me
from abroad by Minhard Otto Petrich, of Zwickau, Saxony, German Empire,
Works Manager, and Paul Ehrhardt Petrich, of Radeberg, Saxony, aforesaid,
Builder) and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:-
Couplings constructed according to this invention are worked from the sides
of the carriages by means of a crank rotatable in an eye in the hook fixed to the
buffer beam, so that both the engaging of the coupling link with the hook and
the tightening up are effected thereby, thus rendering this coupling extremely
simple and safe in action as compared with existing ones.
In the accompanying drawings Fig. 1 shews the coupling in perspective in the
moment of hooking in and Fig. 2 in the tightened up position.
Fig. 3 is a plan and Fig. 4 a side view of the coupling device itself.
Figs. 5 and 6 show different positions of the crank, whilst Figs. 7 and 8 are
sections on lines X-X and y-y of Fig. 3.
A crank bb Figs. 3, 4, 5 and 6 has the bearing of its central gudgeon a hori-
zontally in the hook o and on its end gudgeons e are mounted loosely the coupling
links c;
on the smaller square prolongation el of each end gudgeon is fixed a
countercrank k having a square gudgeon 7 upon which fits the square socket m¹ of
a spindle m; these spindles have their bearings on the buffer beam (Figs. 1 and 2)
and on their outer ends m² are fixed hand levers n. On the body ends of the
crank bb are mounted the outer eyes c¹ of the coupling links c and these eyes
have underneath flat faces d against which the side limbs of the crank bb bear.
The inner sides of the eyes c² on the other end of the coupling links c have clutch
teeth which engage with corresponding teeth 3 on an intermediate piece f
when the coupling links are brought into the horizontal position. The links c
and the intermediate piece f are jointed together by a bolt g¹. The other end of
the intermediate piece f has also an eye jointed by a bolt g to the catching link
or loop h which is formed with counterbalancing prolongations 3 with weights i
and is normally kept in the horizontal position. The eye f2 of this intermediate
piece f and the eyes h¹ of the loop h have also clutch teeth so arranged, that the
loop h is kept in the stretched out or rigid position with the link as soon as it rises
above the horizontal position. The clutch form is shewn in Fig. 7, f being the
clutch part of the eye of f, and 2 that of the loop h. The space between the
links c is so large that the usual safety hook with loop can readily drop through.
The action of this coupling is as follows. By turning one of the lateral hand
levers in direction of the arrow, Fig. 1, the coupling link and the catch loop are
brought into the stretched out or rigid position, raised a little above the horizontal
and hooked into the hook of the other carriage. The hand lever is then turned in
the opposite direction whereby the carriages are drawn together to the extent of
double the length of the crank see Fig. 2. As soon as the crank bb strikes against
the aforesaid flat faces d of the links c it is secured in position at the dead point
Fig. 6. For disengaging it is only necessary to swing the hand lever smartly up,
as shewn by the arrow Fig. 2, whereby it fails back into its position of rest and
the coupling folds up.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion, as communicated to me by my foreign correspondents, and in what manner
the same is to be performed, I declare that what I claim is:-
l
In railway carriage couplings the combination of the crank bb, being rotatably
attached in the eye of the hook o by its central gudgeon a; coupling links c, under-
neath provided with flat faces d and loosely mounted on the end gudgeons e of
said crank, to these end gudgeons e being fixed countercranks k with square
gudgeon upon which fit square sockets m³ of a spindle m having its bearings q
mounted on the buffer-beam and being provided with handlevers n fixed on its
outer ends; the intermediate piece f destined to carry the catch loop h and placed
between the eyes c² of the coupling links c, the eyes fi f2 of said intermediate
piece carrying clutch teeth f3f4 engaging with corresponding teeth on the
eyes ch¹ of the links c and the catch loop h respectively, substantially as shewn
and described.
A T
1000