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Патент USA US2085885

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July 6, 1937»
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w. zlscHKA
2,085,885
PERMANENT WAY RAIL JOINT CONNECTION
Filéd-May 25, 1956
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2 sheets-sheet 1
wilhelm Zixmm
INVENTOE’,
@à @ÈYMML
July 6, 1937.
w. zlscHKA
2,085,885
PERMANENT WAY RAIL JOINT CONNECTION
Filed May 25, 1936
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Wllhelm ZISCMKOL
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Patented July 6, v1937
2,085,885
UNHTED STATES PATENT OFFICE
2,085,885
PERMANENT WAY RAIL JOINT CONNEC
TION
Wilhelm Zischka, Jablonec N. N.,*C`zechoslovakia>
Application May 23, 1936, Serial No. 81,342
In Czechoslovakia July 23, 1934
‘
6 Claims. (Cl. 23S-219)
This invention is for improvements in or re
In the drawings,
lating to joint connections of permanent way
Figure 1 represents
rails.
Rail joint connections are kno-wn comprising,
5 for insertion in the joint, a transversely movable
wedge-shaped member which is kept in contin
uous contact with the ends of the rails on either
side of the joint by spring urging means, the
wedge-shaped member being formed at at least
10 one end with a substantially vertically disposed
wedging surface arranged slidingly to abut a cor
respondingly shaped and disposed wedging sur*
face on the adjacent rail end.
The invention relates to rail joint connections
15 of this class (hereinafter referred to as the class
specified) and comprises an improved construc
tion as will hereinafter appear.
The invention consists in the provision of a
rail joint connection of the class above speci
20 iied comprising in combination with the wedge
a
horizontal
section
through the rail joint connection taken along
the line of the connecting bolts which connect
the parts of the joint together;
5
Figure 2 is a plan View of the connection;
Figure 3 is a side elevation partly in section
of the connection;
Figures 4, 5 and 6 are respectively cross-sec
tions through the connection on the section lines 10
IV--IV, V-V and VI-VI of Figure l, these iig
ures and the preceding Figures 1 to 3 showing
the parts of the invention according to one of
the embodiments thereof;
Figures '7, 8 and 9 are respectively a horizontal 1»
sectionjplan view and elevation similar to Fig
ures 1, 2- and 3, but showing the parts of the
invention according to the second embodiment
thereof, and
-Figure 10 is a cross-section through the con
shaped member of the connection, a supporting nection on the line X-X of FigureV 8.
20
member therefor arranged to be inserted be
Referring first to the embodiment of the in
tween the rail ends on either side of the joint,
vention shown in Figures l to 6, the- two rails
a sleeper plate, means to aiiîx the supporting on
either side _respectively of the joint are cut
25 member to the sleeper plate, the sleeper plate
out at the joint in wedge-shape on two verti~ .t
being common to both the supporting member cal
planes symmetrical to each other. The ends
at at least one end thereof and the adjacent
.|, 2 of the rails rest on a common supporting
rail end, and fish plates for connecting the sup
plate 3 ñxed on the sleepers and on which they
porting member to the rail ends.
are fixed at a certain distance from each other.
According
to
a
preferred
form
of
the
inven
30
The intermediate space between the two rail ends o
tion, the supporting member for the wedge
l, 2 is ñlled up, leaving expansion gaps, by a
shaped member is a bar of inverted-T section wedge-shaped bar 4 of inverted-T section rest
which is clamped down by its ñanges on to the ing by its flanges upon the face of the support
sleeper plate.
It is frequently the case that in parts of the ing plate 3. -The web of this bar 4 is thicker
track rails of unequal length abut together. In than the webs of the rails and is provided with ~
longitudinally extending ribs. The bar 4 is firm
this case the heat expansions and contractions ly connectedby rivets or bolts 5 with ñsh plates
on the two sides of the joint are unequal.. The
shorter rail does not vary its length to the same 6, which are also formed with longitudinally ex
extent for a given temperature variation as the tending ribs as shown and which by these >ribs
engage the ribs of the web of .the bar il. The
40 longer rail. To meet this diñiculty, the inven
40
tion includes the provision of a false rail and fish plates 6 embrace by their outer ends the
rail
ends
l,
2
and
are
so
connected
therewith
between the rail end proper and the wedge
shaped member, which false rail end is rigidly by bolts 'l that the rails'on- either side of the
joint can expand and contract under the ac
4 connected to the rail endproper and carries the tion
of heat.
45
wedging surface, the rail end proper being cut
The
top of the web of the bar 4 is cut trans
perpendicularly to the longitudinal axis of the
versely in dove-tailed formas sho-wn in Figure
rail and the angle of the wedging surfaces on the
3 and forms a guide for a wedge-shaped member
false rail end and the adjacent end of the wedge
5 shaped member being of a magnitude to suit 8 which is provided on its narrower edge with a
downwardly directed arm 9. Two bolts I0, which 50
the length of rail on that side of the joint.
are drawn through the two fish plates 6 and
The invention will now be further described
with reference to the accompanying drawings through the web» of the bar 4, pass through this
arm 9. On these bolts are arranged springs Il
which illustrate two preferred embodiments by which
bear by one of their ends on the outer
55 Way of example.
fish plates 6 and with the other end on the inner 55
2
2,085,885
surface of the vertical arm 9 of the wedge
shaped member 8. The rail ends I, 2 and the
movement therealong with expansion and con
traction movements of the rail, a sleeper plate,
bar 4 are clamped down by their flanges on to the
means to affix the suppporting member to the
supporting plate by means of bolts I2 and clamp
sleeper plate, the sleeper plate being common to
ing plates I3.
both the supporting member at at least one end
thereof and the adjacent rail end, and fish plates
-
The second embodiment illustrated in Figures
'7 to 10, is essentially similar to the first embodi
for connecting the supporting member to the rail
ment and for this reason similar parts are desig
ends proper.
ment upon the supporting member by a key on
one of the parts and a cooperating key-way on
the other'.
3. A rail joint connection as speciñed in claim
The difference between the two embodiments con
sists in this, that the rails are not cut off obliquely
but at right angles to their longitudinal axis.
The cut preferably follows in a zigzag line (in
15 elevation) in such manner that the rail end
20
Y
2. A_rail joint connection as speciñed in claim
1, having the false rail end guided in its move
nated on the drawings by the similar reference
10 numerals to those employed in Figures 1 to 6.
proper is supported by the part I8 of the head
of the rail, which projects above the rectangu
larly cut off web and the flanges of the bar 4,
1, having the rail end proper undercut, the head
portion projecting in the direction of length of
the railY beyond the web portion, and the pro
jecting head portion overlying the adjacent end
the ends of which are also cut off on perpendic
of the supporting member so as to receive vertical
ular planes at right angles to the longitudinal
suppport thereupon.
axis of the rail. On each of the heads ofthe two
4. A rail joint connection of the class herein
described, comprising obliquely cut rail ends, a
wedge shaped member, a support for said wedge
shaped member inserted between the rail ends,
means securing said wedge-shaped member resil
iently to said support, a dove-tailed transverseY
groove cut in the top of said suppport with its
walls lyingV in planes perpendicular to the ver
tical longitudinal plane of the rails, a corre
spondingly dove-tailed transverse guide element
on the lower surface of the wedge'member and
rail ends I, 2 is closely connected awedge-shaped
piece I4 constituting a false rail end. This piece
is ñrmly connected by means of a tongue I5 and
bolts l to the corresponding rail end proper and
is provided on its lower side with a feather key
I6 by means of which it is guided inA an oblong
groove Il in the upper surface of the web of
the bar 4. The abutting surfaces of the false
rail ends I4 with the heads of the rail ends
proper, as also the abutting surfaces of the two
‘
wedge-shaped parts 8 and I4, may advantageously
forming part thereof and ñsh plates to connect
run obliquely.
the support to the rail ends.
5. A rail joint connection of the class herein
'
~
The second embodiment of the inventionris
particularly adapted for those parts of the track
where the rails on either sicle of the joint are
of unequal length. It isV to be understood, how
ever, that it is not limited to this case. ,
As previously indicated herein, in the case re
40 ferred to where the> rails on either side of the
joint are of >unequal length and in consequence
the heat expansions and contractions on the two
sides of the joint are unequal, it is necessary to
suit the angle of the wedging surfaces at the two
ends respectively of the wedge-shaped member to
the respective lengthsof the rails. Thus, the
wedging surface adjacent the shorter rail would
have an angle somewhatY greater than that adja
cent the longer rail, so as to enablethe wedging
surfaces onthe Wedge-shaped member correctly
to rest on the corresponding wedging surfaces of
the false rail ends. The wedge form, therefore,
of the false rail ends should be suited, as stated,
to the lengths of the rails to which they are
respectively connected.
described »comprising obliquely cut rail ends, a
wedge shaped member, a support for said wedge
shaped member inserted between the rail ends,
means securing said wedge-shaped member resil
iently to said sup-port, a dove-tailed transverse
groove cut in the top of said support with its 404
walls lying in planes perpendicular to the vertical
longitudinal plane of the rails, a correspondingly
dove-tailed transverse guide element on the lower
surface of the Wedge member and forming part
thereof, a sleeper plate being common to both
said support, at at least one end thereof, and
the adjacent rail end, means to aiiìx said support
to said> sleeper plate, and ñsh plates to connect
said support to said raillends.
`
' 6. A rail joint'connection of the class herein
described, comprising obliquely cut rail ends, a
wedge shaped member, a support for said wedge
shaped member comprising a bar of inverted T
shaped transverse section inserted between the
rail ends, means securing said wedge-shaped
specified, comprising in combination >with the
member resiliently to said support, a dove-tailed
transverse groove cut in the top of said support
with its walls lying in planes perpendicular to
the vertical longitudinal plane of the rails, a cor
respondingly dove-tailed transverse guide element
wedge-shaped member of the connection, a sup
porting member therefor arranged to be inserted
on the lower surface of the wedge member and
forming part thereof, a sleeper plate being com--
between the rail ends on either side of the joint,
at least one false rail end to intervene between
the corresponding rail end proper and the Wedge
mon to both said support at at least one end`
thereof and the adjacent rail end, means to clamp
What I claim as my invention and desire to
secure by Letters Patent of the United States
1s:-
`
l. A rail joint connection'of the class 'herein
shaped member, which false rail end is arranged
to be rigidly connected to the rail end proper,
carries the rail end wedging surface and is slid
ingly carried upon the suppporting member for
20
the flanges of said support to said sleeper plate,
and fish plates to connect said support to the rail
ends.
Y
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WILHELM ZlÍSCHKA.
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