close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2134750

код для вставки
Nov. 1, 1938.
J. CLARK
2,134,750
RAILROAD ‘ANTICREEPER
Filed Sept. 28, 1937
Jobmu CZanK.
“ WW
2,134,750
Patented Nov. 1, 1938
UNITED s'r
ATENT OFFICE
2,134,750
' RAILROAD‘ AN'HoaEErsn
John Clark, Walkerton, Ind.
Application September 28, 1937, Serial No. 166,159
6 Claims.
(Cl. 238--349)
My invention is a. railroad anti-creeper.
An important object of the invention is to pro
vide an anti-creeper which may be attached to
any standard tie plate and rail to prevent the
5 rail from creeping longitudinally in either direc
tion.
'
'
‘
'A further object of the invention is to provide
an anti-creeper which is adapted to be applied
to rails of different weights and ‘sections and
tie plates of different characters, thus eliminat
ing the necessity of using different types of anti
creepers.
'
A further object of the invention is to provide
an anti-creeper oi the above mentioned charac
” ter which has a three point contact with the
base of the rail and the tie plate.
A further object of the invention is to provide
an anti-creeper of the above mentioned charac
ter which will hold the rail from creeping and
yet possess suf?cient ?exibility to allow the rail
to have a limited amount of vertical movement
. with respect to the tie plate.
-‘ A further object of the invention is to provide
an anti-creeper of the above mentioned character
25 which is very easily attached to or removed from
the rail, without damage to the anti—creeper.
A further object of the invention is to provide
an anti-creeper of the above mentioned character
having means holding the same in place upon
the cross tie‘ embodying a threaded bolt and nut,
the threads and nut being covered, so that the
threads will not corrode or rust, whereby the
bolt may be conveniently removed after several
years of service, without damage to the threads.
A further object of the invention is to provide
35
an anti-creeper of the above mentioned character
which may be installed during the laying of new
rails, in such a convenient‘and easy manner that
it willv not slow up the work of laying such rails.
30
Other objects and advantages of the inven
tion will be apparent during the course of the
having the usual upstanding ?anges 8 to en
gage with the edges of the base. The base 6
has an upper inclined face 9. The tie plate ‘I
is arranged upon a cross tie Ill, and is secured
thereto by spikes H. The tie plate ‘I is pro
vided with vertical openings l2, passing through
the flanges 8, and leading into larger recesses
it, as shown.
The numeral l4 designates my anti-creeper
which is suitably strong or stiff and possesses 110
a desired degree of resiliency. This anti-creeper
is elongated and is curved or arched throughout
its length, with its convex side uppermost, pro
viding a body portion or shell is and a tail
it having an elongated transverse contact edge, 115
jaw or line ii, to engage with the tie ‘plate ‘I.
The anti-creeper is transversely curved or
arched, and the body portion has sides or arms
l8, provided with elongated contact edges, lines,
or jaws l9, inclined to more readily engage with 20
the inclined face 9 throughout their entire length.
The contact edges I‘! and iii are arranged in a
triangular group, providing a three point con
tact. The body portion or shell I5 is generally
spherically curved and has its convex face ar 25
ranged uppermost. Extending through the lower
end of the shell it are openings l9’ and 21!)’, ar
ranged in a triangular group, and forming the
arms it and it, which are arranged in a tri
angular group. The opening Zll is disposed with
a
in this triangular group and near its center. The
arms it and 58 are provided with the end edges
ill and i9. When a downward pressure is ap
plied to the upper end of the shell I5, this pres
sure is transmitted in a downward direction by ’ ‘
the arms to the end edges in a manner tangential
to the shell.v This is an important feature of
the invention as it permits of the anti-creeper
being made relatively light and yet will have
suflicient stiffness to produce the desired down
ward pressure upon the base of the rail.
The anti-creeper is provided with an opening
In the accompanying drawing forming a part 29, arranged substantially, centrally of the tri
of this application and in which like numerals angular group of jaws or arms l1 and I9, to
are employed to'designate like parts throughout receive a vertical bolt 2i. This bolt has a polyg
following description.
,
the same,
Figure 1 is a perspective view of an anti-creeper
embodying my invention, showingthe same in
use,
50
,
Figure 2 is a side elevation of the same,
‘ Figure 3 is a plan view of two of the anti
creepers, in use,
a
.
Figure {l is a perspective view of a shouldered
nut included in the device, and,
55 ,_Figu_r__e 5 is a, perspective view of the anti
creeper.
‘
'
‘
In the drawing, wherein for the purpose of
illustration is shown a preferred embodiment of
my invention, the numeral 5 designates a rail
60 having a base 6, arranged upon a tie plate 1,
onal head 22 for convenient turning and a screw
threaded end 23 which passes through the open
ing [2 and engages within the screw-threaded
opening 24 of the nut 25, held against turning
within the recess l3, and provided with a lateral {5
extension 26, engaging beneath the tie plate, to
hold the nut level and oppose the upward move
ment of the nut while it is held against rotation
within the recess l3.
My anti-creeper may be applied in position 1
while laying the rails 5. The nut 25 is arranged
within the recess l3 and the tie plate ‘I is then
arranged upon the cross tie and secured thereto
by the spikes III. The anti-creeper ‘M is then
placed in position, with its contact edges [9 60
2
2,134,750
engaging the face 9 of the base 6 and its edge I]
engaging the upper face of the tie plate. The
bolt 2| is then passed through the opening 20
and engages within the screw-threaded opening
24 and this bolt is screwed up to apply pressure
in the anti-creeper l4, placing the same under
the desired tension. The downward pressure ap
plied to the upper end of the anti-creeper is
transmitted by the arms to the end edges in a
Since the anti
10 manner tangential to the shell.
creeper is somewhat resilient, should the contact
edges I!) not originally engage with the inclined
face 9 throughout their entire length, the anti
creeper will be ?exed longitudinally so that the
15 elongated contact edges will properly engage with
the face throughout their entire length. A simi
lar ?exing action will cause the contact edge I‘!
to properly engage with the upper face of the
tie plate 1 throughout the entire length of the
edge I1. The contact edges I9 are preferably not
parallel, but converge slightly inwardly, aiford
ing a better gripping engagement with the face
9, and the maximum gripping area between these
parts may be effected by the longitudinal or
transverse ?exing of the anti-creeper. The main
function of the device is to prevent the creep
ing of the rail 5 longitudinally in either direc
tion, but the anti-creeper I4 possessing a suit
able degree of resiliency, both transversely and
80 longitudinally, will permit of a limited vertical
movement of the base 6 with respect to the tie
plate. This prevents, to a considerable extent,
the up and down' churning movement of the
ties in the ballast during the summer months and
also the pulling out of the spikes during the
winter months when the ties are frozen in the
ballast. When conditions are such that the ties
are loose under the rails, the anti-creeper in
creases its frictional engagement with the face 9
of the base, due to the transverse resiliency of
the creeper, and holds the rail from creeping
longitudinally in either direction. It is preferred
to use two of the anti-creepers in connection with
each tie plate ‘I, as illustrated in Figure 3.
In view of the foregoing description it is thus
seen that my anti-creeper will accommodate it
self to rails having bases of di?erent cross sec
tions and to tie plates of di?erent shapes. Fur
ther, the anti-creeper may be applied when lay
ing the rails. The location of the nut 25 causes
the nut to be housed or covered within the recess
l3 so that the threads 23 of the bolt will not rust
or corrode, after months of service, and the bolt
20' may be removed without destroying the
55 threads.
It is to be understood that the form of my
invention herewith shown and described is to be
taken as a preferred example of the same and
that various changes in the size, shape, and ar
rangement of parts, may be resorted to without
departing from the spirit of my invention or the
scope of the subjoined claims.
Having thus described my invention, I claim:
1. A resilient railroad anti-creeper, com
prising a generally spherically curved shell hav
ing three spaced openings and spaced arms be
tween the openings, the arms having end edges,
the end edges of two arms engaging the base of
the rail and the end edge of the remaining arm
70 engaging the tie plate or tie, and means for
exerting downward pressure upon the shell which
is transmitted by the arms to the end edges in
a. manner tangential with respect to the shell.
2. A resilient railroad anti-creeper comprising
a generally spherically curved shell having its con
vex surface arranged uppermost, the shell being
provided through its lower end with three open
ings for affording three spaced arms, each arm
having an end edge, two of the arms having their
end edges arranged to engage with the base of
the rail and the third arm extending outwardly
beyond the base for engaging a tie plate or cross
tie, said shell being provided in its upper portion 10
with an opening, and an element passing through
the opening and serving to exert a downward
pressure upon the shell which pressure is trans
mitted by the arms to the end edges in a manner
tangential to the shell.
3. A resilient railroad anti-creeper comprising
a shell which is curved longitudinally and trans
versely and has its convex side arranged upper
most, said shell having openings formed through
its lower end for affording three arms, each arm
having an end edge, two of the arms having their
end edges arranged to engage with the base of
the rail and the third arm being longer than the
two arms and arranged to engage with the tie
plate or cross tie, said shell having an opening
arranged generally centrally of the triangular
group, and an element passing through the open
ing and serving to exert downward pressure up
on the shell, which pressure is transmitted to the
end edges in a manner tangential to the shell.
4. A resilient railroad anti-creeper comprising
a shell, which is generally spherically curved and
having its convex surface uppermost, said shell
having a triangular group of openings formed
in its lower end to afford a triangular group of
arms, each arm having end edges which are sub
stantially long, the end edges of two of the arms
engaging the base of the rail with such end edges
converging toward the base of the rail and the
third arm engaging the tie plate, said shell hav
ing an opening disposed generally centrally of the
.40
triangular group, and an element held within the
opening and serving to exert a downward pres
sure upon the shell which is transmitted by the
arms to the end edges in a manner tangential 45
to the shell.
5. A combination with a tie plate having ?anges
to receive therebetween the base of a rail, said
tie plate being provided with a recess, a nut held
within the recess, a generally spherically curved 50
shell having its convex face arranged upper
most, said shell being provided through its lower
end with openings providing a pair of arms for
coaction with the base of the rail and another
arm for coaction with the tie plate, said shell I
having an opening formed in its upper portion,
each arm having an end edge, and a bolt passing
through the opening and having a lower screw
threaded end to engage the nut, said bolt serv
ing to exert a downward pressure upon the shell 60
which is transmitted by the arms to the edges
in a tangential manner.
6. A railway anti-creeper, comprising a gen
erally spherically curved shell having its convex
surface arranged. uppermost, said shell having 65
an edge to engage with the base of the rail and
with the tie plate or cross tie, said shell being
provided between these points of engagement with
openings, and an element for exerting downward
pressure upon the shell which is transmitted to 70
the engaging edge in a manner tangential with
respect to the shell.
'
JOHN CLARK.
Документ
Категория
Без категории
Просмотров
0
Размер файла
439 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа