IMPROVEMENTS IN THE SO CALLED NORWEGIAN HOOK COUPLINGS' AND OTHER COMBINED BUFFING AND DRAW-GEAR
Year: 1884

page_text: I, PETER JENSEN, of 33, Chancery Lane, in the County of Middlesex, Fellow
of the Institute of Patent Agents do hereby declare the nature of said Invention
for "IMPROVEMENTS IN THE SO CALLED NORWEGIAN HOOK COUPLINGS' AND
OTHER COMBINED BUFFING AND DRAW-GEAR," to be as follows:-
This invention consists in an improvement on the coupling generally known as
the Norwegian Hook coupling but may be used with a link or links instead of the
hook on any similar arrangement of combined buffing and draw-gear.
A screw thread is cut on the buffer rod immediately in rear of the buffer head
and on this screw a nut works which is turned by a suitable lever attached thereto.
This nut revolves inside a washer attached by double links (the whole being
hereinafter called the stirrup) to the pin of the coupling. This pin slides in two
slots on the buffer head and the washer end of the stirrup is held between two
flanges on the nut so that on the nut being turned either way the pin is moved
backwards or forwards in the slot, and as soon as the hook or link of the vehicle
to be attached is coupled on to the pin all slack between the buffer faces is taken
up by the screw.
In order to allow for play round curves or for inequalities of the road a strong
spring protected by a suitable casing is placed between the stirrup and the flange
of the nut on which the draw comes.
Where additional play of this nature is required a similar arrangement of stirrup
and spring with a pin sliding in a slot may be placed on the buffer head either
with or without the screw as may be considered necessary on the other vehicle.
For engines and vehicles which are frequently turned it may be found convenient
to have the buffer head fitted with double slots and the stirrup links in like manner
with two pins.

page_text: I, PETER JENSEN of 33 Chancery Lane in the County of Middlesex Fellow of
the Institute of Patent Agents do hereby declare the nature of said Invention
for "IMPROVEMENTS IN THE SO CALLED 'NORWEGIAN HOOK COUPLINGS' AND
OTHER COMBINED BUFFING AND DRAWGEAR" and in what manner the same is
to be performed to be particularly described and ascertained in and by the
following Statement:―
This Invention consists in an improvement on the coupling generally known as
the Norwegian Hook Coupling but may be used with a link or links instead of the
hook in any similar arrangement of combined buffing and drawgear.
A screw thread is cut in the Buffer Rod immediately in rear of the Buffer head
and on this screw a nut works which is turned by a suitable lever attached
thereto. This nut revolves inside a washer attached by double links (the whole
being hereinafter called the stirrup) to the pin of the coupling. This pin slides in
two slots on the bufferhead and the washer end of the stirrup is held between two
flanges on the nut so that on the nut being turned either way the pin is moved
backwards or forwards in the slot and as soon as the hook or link of the vehicle
to be attached is coupled on to the pin all slack between the buffer faces is taken
up by the screw.
In order to allow for play round curves or for inequalities of the road a strong
spring protected by a suitable casing is placed between the stirrup and the flange
of the nut in which the draw comes.
Where additional play of this nature is required a similar arrangement of stirrup
and spring with a pin sliding in a slot may be placed on the buffer head either with
or without the screw as may be considered necessary on the other vehicle.
For engines and vehicles which are frequently turned it may be found convenient
to have the buffer head fitted with double slots and the stirrup links in like
manner with two pins.
And in order that this Invention may be more fully understood and readily
carried into effect I will describe the same with reference to the accompanying
drawings.
Figure 1 is a part sectional plan view of one form of the improved coupling and
buffer gear, and Figure 2 a side view. One of the buffer rods A is formed with
screw thread a in rear of the buffer head B, while the other buffer rod A¹ is plain.
C is a nut which is made an easy fit on the screwed part a and which is formed
with a flange c and provided with a loosely fitting flanged ferrule D and with a
loosely fitting flanged washer or casing E. Between the flange of the latter and
the flange c of the nut C is placed an india rubber block washer spring F to allow
for play round curves or for inequalities of the road. The casing E serves to
protect the spring F. A lever G with knob g is secured firmly to the rear end of
the nut C and serves to work the nut backwards and forwards on the screwed
part a as required.
H is a stirrup shaped part which at its rear end fits easily between the flange c
of the nut C (or rather its casing E) and the flange formed by the boss or head of
the lever G fixed on the nut, so that the nut can be freely revolved in the stirrup H.
The front ends of the stirrup carry the coupling pin I which slides at each end in
a slot k formed in each side of the hollow buffer head K. Obviously the nut
might be made with a part to work in a corresponding circular recess formed on
the stirrup which would be the reverse of what is shown here. The hook L is

page_text: made to hook on to the coupling pin I, and when this has been done, and the stirrup
has been drawn up into the position shown viz by turning the nut C by the
handle G the coupling is closed. On the other hand by turning the nut the reverse
way and lifting the hook off the pin I, the coupling is opened. The hooking and
unhooking may if desired by suitable and well known connections be effected from
the side of the carriage without necessitating a man going between the carriages;
in such case the nut C would also have to be worked from the side of the carriage
which might be effected by bevel gear, as will be well understood.
Figure 3 is a part sectional plan and Figure 4 a side view of a hook coupling
and buffer gear where the ends of both carriages are fitted with stirrup H and
nut C (as shown at the right hand side of Figures 1 and 2), thus affording
additional length play in the coupling.
Figure 5 is a part sectional plan, and Figure 6 a side view showing the right
hand half of the coupling fitted with nut C and stirrup H as above described and
connected to the other or left hand half of the coupling by a link L' (instead of
a hook). The connecting or disconnecting of the link L' is effected by inserting
or removing the pin I¹. This latter is provided with a hinged end piece I* which
when turned down keeps the pin from shaking out.
In the part sectional plan Figure 7 and elevation Figure 8 are shown an arrange-
ment of link coupling where the two halves of the coupling are alike.
Each
coupling pin I carries a cross piece M which at one end is formed with a hook m
and at the other end with an eye m'. The hook m of each cross piece M is
connected to the eye m¹ of the other cross piece by the links L¹. The stirrups H
and nuts C with the parts belonging thereto are similar to those of the previous
figures. If only one half of the coupling is constructed as shewn, the other half
should be provided with a part corresponding to the cross piece M or be provided
with hook m and eye m¹.
Figure 9 is a part sectional plan and Figure 10 a side view of a hook coupling
made somewhat similar to that shewn at Figures 1 and 2 but where the stirrup H
is made with two pins viz: the coupling pin I and another pin N both sliding at
the ends in slots formed in the buffer head K thus affording a stronger guide, and
applicable for engines and vehicles which are frequently turned.
Having now particularly described and ascertained the nature of the said
Invention and in what manner the same is to be perform I declare that what
I claim as the invention communicated to me is:-
:-
Firstly The improved Norwegian Coupling or combined buffing and coupling
gear in which the coupling pin is guided by the buffer head and is tightened or
slackened relatively to the connecting hook or link by means of a nut on a screwed
part of the buffer rod, the nut and the part carrying the coupling pin being
connected so that the nut can be turned freely in or on the said part for connecting
and disconnecting the hook or link substantially as set forth.
Secondly-The stirrup H with coupling pin I which is guided in slots in the
buffer head in combination with a nut C and a screwed part a of a buffer
rod A substantially as described and applied to combined coupling and buffing
apparatus.
Thirdly The stirrup H with coupling pin I which is guided by the buffer head
in combination with a nut C having a spring F ferrule D and casing E and with a
screwed part a of the buffer rod A, a lever G being provided for turning the
nut substantially as described an as applied to combined coupling and buffing
apparatus.
Fourthly-The stirrup H with coupling pin I and guide pin N both guided by
the buffer head in combination with a nut C on a screwed part a of the buffer
rod A substantially as described with reference to Figures 9 and 10 and applied
to combined buffing and coupling apparatus.
:-
Fifthly The stirrup H with coupling pin I which is guided by the buffer head
and provided with cross piece M having a hook at one end and an eye on the other

page_text: in combination with links L¹, connected to an eye and a hook on the other half of
the coupling and with a nut C and a screwed part a of the buffer rod A
substantially as described with reference to Figures 7 and 8 and applied to
combined buffing and coupling apparatus.
1
and