An improved Joint for Kauway Kans
Year: 1898

page_text: An improved Joint for Kauway Kans,
I, JOHANNES GRIMME, of Bochum 1/Westfalen, in the Empire of Germany,
do hereby declare the nature of this invention to be as follows.
-
Fish-plate joints for railway rails as hitherto formed, in which the fish plates
merely fit laterally in the fish-plate recesses of the rails, have proved inefficient
for bearing the wheel-load for any length of time
It is well known also that
the points of contact of the fish plates and the rails invariably wear first at the
outer extremity of these latteı
Many methods have been attempted for causing the foot surfaces of the rails
to assist in bearing the weight in the fish joint, for example, by the insertion of
wedges o in other similar ways These attempts have not, however, produced
a satisfactory result, and furthermore always necessitate the employment of a
number of special bolts for the parts supporting the rail foot
The fish-plate connection for a suspended joint which forms the subject of
this invention, obviates these defects, owing to the fact that it utilises the foot
of the ail tor bearing purposes without the employment of special wedges and
bolts This result is attained by the use, in addition to the usual fish-plates
which are arranged between the head and foot of the rails, of a further pan of
fish-plates which pass beneath the ail foot and which may be tightened up in
the customary manner by means of the screw bolts employed with ordinary fish-
plates
In one form of joint two fish-plates are arranged between the head and the
foot of the rail, as in the known forms of fish-plate joints Against these fisli-
plates are arranged outer plates which grasp the rail foot by means of a hook-
shaped lower portion, the ends of which serve as supports for the rail foot. In
order to tighten up the fish-plates in the fish-plate recesses between the head
and the foot of the rail, the use of four screw bolts arranged in the usual manner,
will suffice without its being necessary to employ special bolts, wedges on the
like for tightening up the supporting parts
I sometimes form the improved joint in a different manner to that above
described In this case the inner fish plates are provided with wings projecting
vertically downwards, which wings should be formed with corresponding slots
for the passage of the extremities of the outer plates which engage beneath the
foot of the rail.
As the rails wear first of all below the head and in proximity to the gaps at
the joints, and more especially at the place where the wheel bears, in the case
of tracks used for traffic in one duection only, the relative heights of the ail
ends do not correspond, as the inner fish-plate is no longer able, owing to wear.
to ensure the maintenance of the night height This has hitherto been remedied
by placing a thin plate between the fish plate and the head of the rail, but by
means of the form of my improved joint, in which the outer fish plates are
formed separately for each rail end, the end of any rail may be slightly raised

page_text: independently of any other rail by tightening up the outer fish-plate in question,
so as to compensate for any variation in height
The action of the said fish plate joint upon tightening the bolt 18 owing to
the fact that the inner fish plates are diawn into the fish plate recesses in the
rail in the usual manner, whilst the outer fish plates are drawn up upon the wedge
shaped surface of the lower leg of the inner fish plate, whereby the legs of the
outer plate which engage beneath the foot of the rail bear tightly against the rail
foot, so that the rail is uniformly, retained upon three sides by the tightening
up of the screws
Dated this 11th day of June 1898
HASELTINE, LAKE & Co,
45, Southampton Buildings, London, WC,
Agents for the Applicant
I, JOHANNES GRIMME, of Bochum 1/Westfelen, in the Empne of Germany,
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.-
-
Fish-plate joints for railway rails as hitherto formed, in which the fish plates
merely fit laterally in the fish-plate recesses of the rails have proved inefficient
for beaning the wheel-load for any considerable length of time It is well known
also that the points of contact of the fish-plates and the rails invariably weal
fist at the outer extremity of these latter
Many methods have been attempted for causing the foot surfaces of the rails
to assist in bearing the weight on the fish joint, for example, by the insertion of
wedges or in other similar ways These attempts have not, however, produced
satisfactory results, and furthermore always necessitute the employment of a
number of special bolts for the parts supporting the rail foot
The fish-plate connection for a suspended joint which forms the subject of
this invention, obviates these defects, owing to the fact that it utilises the foot
of the rail for bearing purposes without the employment of special wedges and
bolts This result 18 attained by the use, in addition to the usual fish-plates
which are aanged between the head and foot of the rails, of a further pair of
fish-plates which pass beneath the rail foot and which may be tightened up in
the customary manner by means of the screw bolts employed with ordinary fish-
plates
The invention 18 illustrated in the accompanying diawing, in which
Figure 1 is a cross-section and Figure 1 a side elevation shewing the most
simple manner of carving out the invention
Figure 2 is a side elevation shewing another manner of carrying out the
invention.
Figure 3 represents upon its left hand portion a cross-section upon the line r―r
of Figure 2, and upon its right hand portion a cross-section upon the line y-y of
the same figure
shews a constructional form similar to that represented in Figure 2,
Figure
slightly modified
In the form of joint represented in Figure 1 two fish-plates a are arranged
between the head and the foot of the rail, as in the known forms of fish-plate

page_text: Joints. Agamst these fish-plates are arranged outer plates 6 which grasp the rail
foot by means of a hook-shaped lower portion, the ends of which serve as
supports for the 1ail foot In order to tighten up the fish-plates in the fish-plate
receases between the head and the foot of the ail, the use of four sciew bolts
arranged in the usual manner, as shewn in the diawing, will suffice without
its being necessary to employ special bolts, wedges on the like for tightening up
the supporting parts c
The constructional forms represented in Figures 2, 3 and 4 differ from that
shown in Figure 1, in that the inner fish-plates a are provided with wings d
projecting vertically downwards, which wings should be formed with correspond-
ing slots e for the passage of the extremities of the outer plates which engage
the foot of the rail
As the nails wear first of all below the head and in proximity to the gaps at
the joints, and more especially at the place where the wheel bears, in the case
of tracks used for traffic in one duection only, the relative heights of the tail
ends do not correspond, as the inner fish plate a is no longer able, owing to
wear, to ensure the maintenance of the night height. This has hitherto been
remedied by placing a thin plate between the fish plate and the head of the 1ail,
but by means of the form of my improved joint illustrated in Figure 4, in which
the outer fish-plates bare formed separately for each rail end, the end of any
rail may be slightly raised independent of any other ail by tightening up the
outer fish-plate in question, so as to compensate for any variation in height
The action of the said fish-plate joint upon tightening the bolt 18, owing 'to
the fact that the inner fish-plates are drawn into the fish-plate recesses in the
rail in the usual manner, whilst the outer fish plates are drawn up upon the wedge
shaped surface of the lower leg of the inner fish plate, whereby the legs of the
outer plate which engage beneath the foot of the rail bear tightly against the rail
foot, so that the rail is uniformly retained upon three sides by the tightening
up of the screws
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim 18:-
A fish plate joint, in which against the fish-plates (a) ordinarily aanged
between the head and foot of the rails, an additional outer fish-plate (b) is fixed,
the joint being characterised by the fact that the outer fish-plates engage beneath
the foot of the rail by means of a lower leg, for the purpose of supporting the
rail ends upon the lower side of the foot at the joint and at the same time causing
the foot of the rail to assist in bearing the load.
Dated thre 20th day of Tanna 1900
HASELTINE, LAKE & Co,
45, Southampton Buildings, London, WC.,
Agents for the Applicant.