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Патент USA US3067957

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Dec. 11, 1962
J. F. DEENIK ETAL
3,067,947
FASTENER OF A RAIL ON A SUPPORT BY MEANS OF A RESILIENT CLAMP
Filed July 8, 1960
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INVENTORS
J‘OHAN
F.
JACOB
A - si 55 ES
DEE NI‘K
United States Patent Office
3,667,947
Patented Dec. 11, 1962
2
1
FASTENER 0F vA RAIL ON A SUPPORT BY
MEANS OF A RESILIENT CLAMP
3,067,947
a vertical axis, which results in a better fastening of the
rail.
In accordance with the invention it is advantageous
Johan F. Deenik and Jacob A. Eisses, Bilthoven, Nether
lands, assignors to Everts & Van Der Weyden N.V.,
rail is in contact with the top portion of the strap. This
Helmond, Netherlands, a company of the Netherlands
construction offers the advantage that in the case of a
if the outer side of the raised border ?ange adjacent the
Filed July 8, 1960, Ser. No. 41,510
soft base, which may permit twisting of the locking plate
Claims priority, application Republic of South Africa
from the rail foot, the upper rim of the strap exerts a re
July 17, 1959
8 vClaims. (Cl. 238--315)
straining force on the locking plate through the ?ange.
10
In accordance with the invention such a force can also
be supplied when each leg of the strap has a collar or
support by means of a resilient clamp.
The invention has for its object to provide such a fas
tener which can be applied universally to sleepers formed
of all types of materials and portions of which may be 15
premounted on the sleepers before delivery to the right
shoulder of which the upper surface underlies the plate
and is coplanar with the upper surface of the support.
The locking plate ?nds then a certain support on this col
of way.
means of an adhesive which also may provide insulation
against electric current. In the case of a metal railway
This invention relates to the ‘fastener of a rail on a
In accordance with the invention, a locking plate with
a raised border ?ange around three sides lies on either
lar or shoulder.
Finally the strap can be fastened in the support by
sleeper, the strap can be fastened to the railway sleeper
side against the rail foot, and this plate is locked against 20 by means of welding.
The invention will be further described hereinafter
horizontal displacement by a U-shaped strap, the plane
with speci?c reference to the drawing, in which:
of which is parallel to the direction of the rail and the
FIG. 1 is a view in perspective of a fastener according
to the invention;
FIG. 2 is a fragmentary view in perspective of a modi
the horizontal body of the U-shaped strap is spaced above 25
?ed strap;
the upper side of the plate by the side ?anges, and the
FIG. 3 is a view in perspective of another modi?cation
loop of a U-shaped bent resilient clamp lies on the plate
of the strap;
under the body of the strap and with its legs bent towards
legs engage each in a gap on both sides of the plate and
which are fastened in the material of the support, while
the rail and then backward more than 90° toward the
loop, which legs press on the rail foot with the free ends
abutting the ?ange whereby, in an unstrained condition,
the distance between the loop and the free ends of the
clamp legs is greater than the thickness of the body of
the strap in the direction perpendicular to the rail.
Such a fastener can be applied to railway sleepers of all
kinds of material. In the case of a railway sleeper of soft
Wood, a supporting plate is applied, whereby the plate is
FIG. 4 is a cross sectional view taken perpendicularly
of the rail through the fastener shown in FIG. 1.
FIG. 5 is a cross sectional view similar to FIG. 4 and
showing a modi?cation of the fastener, and
FIG. 6 is a cross sectional view similar to FIGS. 4
and 5 and showing still another embodiment.
In FIG. 1, the fastening of one side of the rail foot 1
of a rail is shown. A locking plate 2 having a raised
border ?ange 3 is positioned with said ?ange against the
elastically pressed on the Wood by the reaction force of
the resilient clamp. The railway sleepers or blocks are
side of the rail foot 1. The locking plate 2 has gaps 4
in its ends through which pass the legs 5 and 6 of a
above and around the body of the strap and is then
way sleeper on which the rail rests.
conveyed to the right of way with premounted straps 40 U-shaped fastening strap. The lower ends of the legs
5, 6 of the strap are fastened in the material of the rail
and locking plates. The resilient clamp is mounted from
The strap has a
.horizontal bight portion or body 7 which bears on the
upper surfaces of the cams or ?anges 8 at the ends of
of the legs rest on the rail foot and abut the side of the
?ange adjacent the rail. The rail is ?xed between two 45 plate 2, providing a space between the body 7 and the
pressed in the direction of the'railfoot, whereby the ends
locking plates by which the rigidity of the frame of the
track is considerably increased. Moreover these locking
plates facilitate exact placement of the rail when con
structing a railway track.
plate 2.
In this space is ?tted the loop 9 of a U-shaped bent
clamp 10, the legs of which are bent upwardly and over
towards the rail and the free ends 11 and 12 of the legs
The raised border of the locking plate, in a very prac 50 are bent under more than 90‘? toward the loop 9. The
ends 11 and 12 abut the raised border ?ange 3 and press
tical embodiment, is provided with a central transverse
on the rail foot 1. The free ends 11 and 12 are spaced
groove the bottom of which merges with a bevel rising
from the loop 9 so that the clamp 10 can be mounted
from the upper surface of the plate and is substantially
around the strap from above, after which the clamp can
level with the upper surface of the rail foot, and the width
of this groove is smaller than the distance between the 55 be pushed toward the rail foot 1 with loop 9 underlying
the body 7 of the strap.
outer sides of the free ends of the unstrained clamp.
The ?ange 3 has a transverse groove 13, as best shown
When the clamp is displaced horizontally the free ends
in FIG. 4, the bottom of which is connected by a bevel
of the clamp legs are carried upwardly by the bevel and
14 with the upper surface of the plate 2 and which forms
by pressing them together they can pass through the
groove after which the free ends spring apart behind the 60 a ramp between the upper surface of the plate 2 and the
rail foot 1. When mounting the clamp, the ends 11 and
?ange and lock the clamp against retraction.
12 are pressed together so that they can be pushed into
Moreover, in accordance with the invention, the side
the groove. Then, as the clamp 10 is ‘forced toward the
?anges of the locking plate are upwardly inclined to the
rail its ends 11 and 12 rise along the bevel 14 and sub
strap supporting portions the heights of which are greater
sequently rest on the rail foot 1, after which the ends
65
than the thickness of the loop of the clamp. Thus, the
spring apart and the clamp is locked against retraction
strap cannot be pressed too 'far in the support which
by the ?ange 3.
would leave insu?icient space for the clamp.
The height and length of the ?ange 3 is greater than
Furthermore, in accordance with the invention, the dis
that of the side ?anges 8 and is engaged by the rail side
tance between the inner surfaces of these cams can be
70 of the strap portions 5, 6, 7. Should the plate sink into
substantially equal to the width of the loop of the clamp.
The clamp is then locked against rotary movement about
the material of the railway sleeper and tend to twist rela
tive to the rail, it is restrained by the engagement of the
3,067,947
4
3
outer side of the ?ange 3 with the adjacent side of the
strap.
FIG. 2 shows an embodiment in which the legs 5 are
provided with a ‘shoulder 15. The plate 2 then rests on
both the railway sleeper and the shoulder 15.
In FIG. 3 the body 7 of the strap has a bend 16 di
rected away from the rail. As a result the loop 9 is more
quickly engaged under the body 7 of the strap when
wardly over the strap and then moving the clamp loop un
der the strap.
2. A fastener in accordance with claim 1, character
ized in that said border ?ange at said one side has a
transverse groove in its upper surface extending com
pletely through the ?ange, and of a width smaller than the
distance between the outer sides of the free ends of the
unstrained clamp, whereby the resilient clamp upon as
sembly is inserted under the strap with the free ends of
The embodiment according to FIG. 4 shows how the 10 the clamp legs in said groove, the clamp when moved
toward the rail freeing the clamp legs from the groove.
clamp 10 presses on the rail foot and is held by the body
3. A fastener in accordance with claim 1, character
7 of the strap. Here, the bottom of plate 2 is provided
ized in that the ?anges at the ends of the locking plate
with downwardly projecting points 17 for ?xing the plate
are provided with cam upper surfaces raised in the di
against displacement on the railway sleeper, which con
sists in this case of hardwood.
15 rection of said side ?ange and having a height somewhat
larger than the thickness of the loop of the clamp.
In FIG. 5 a fastener for a railway sleeper of softwood
4. A fastener in accordance with claim 3, characterized
is shown. In this case a base plate 18 of hard wood is
in that the distance between said ?ange sides having cam
placed between the locking plate 2 and the rail foot on
surfaces is substantially equal to the width of the loop
the one hand and the railway sleeper on the other hand
of the clamp.
FIG. 6 ?nally shows a concrete railway sleeper in
5. A fastener in accordance with claim 1, character
which the strap is fastened by means of an adhesive 19.
ized in that the raised border ?ange at the side adjacent
A layer of adhesive also may be applied between the base
to the rail is in contact with the top portion of the
plate 2 and the railway sleeper. In this manner a good
strap.
insulation of the rail against electric currents can be
6. A fastener in accordance with claim 1, character
obtained. Under the rail itself an insulating layer, such 25
ized in that each leg of the strap is formed with a shoul
as rubber, can be laid.
der whose upper surface underlies said plate and is dis—
What we claim is:
posed at the level of the upper surface of the support
l. A rail fastener comprising a locking plate including
when the fastener is applied thereto.
a raised border ?ange at one side and both ends and hav
7. A fastener in accordance with claim 1, character
ing a gap at each end, said plate being adapted to seat 30
ized in that said strap is fastened in the support by means
said one side against one edge of a rail foot, means for
of an adhesive.
locking said plate against horizontal displacement on a
8. A fastener according to claim 2 wherein the inner
support, said means including an inverted U-shaped strap
edge of the bottom of said groove is spaced from the
the plane of which is parallel to the direction of the
rail and whose legs engage in said gaps in both ends of 35 body of said strap a distance greater than the thickness
of the clamp legs to permit passage of the legs therebe
the locking plate and extend downwardly for fastening
tween for mounting the clamp on the plate, said groove
in the material of the support, the horizontal body of
the U-shaped strap when fastened bearing on the end bor
bottom being connected to the top surface of the plate
der ?anges and thereby being spaced a predetermined
by a bevel to cam the clamp legs upwardly to the level
distance above the upper side of the plate and lying ad 40 of the rail foot as the clamp is moved toward the rail to
jacent said one side of the border ?ange and opposite
seat the clamp loop under the strap.
the rail, and a U-shaped bent resilient clamp having a
loop adapted to lie on the plate in the space under the
References Cited in the ?le of this patent
body of the strap, the legs of said clamp being bent to
UNITED STATES PATENTS
wards the rail and then bent downwardly and rearwardly 45
more than 90° in the direction of the loop, said clamp
2,257,077
Scholes ____________ .... Sept. 23, 1941
legs being adapted to press on the rail foot and ?nd sup
2,690,879
Snyder
______________ ..- Oct. 5, 1954
port with their free ends against the rail side of said bor
mounting the clamp 10.
der ?ange of the locking plate, the loop and the free ends
2,980,336
Doll ________________ -_ Apr. 18, 1961
of said clamp when in an unstrained condition being 50
OTHER REFERENCES
spaced a distance greater than the thickness of the body
of the strap in the direction perpendicular to the rail,
Deenik, German Application 1,003,248 printed Feb. 28,
whereby a prefabricated support and locking plate se~
1957, (K1. 19a8).
cured thereto by said strap may be assembled by merely
Werke, German application 1,020,046 printed Nov. 28,
positioning a rail and inserting the clamp loop down 5 1957 (K1. 19a10).
l
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