вход по аккаунту


Патент USA US2136546

код для вставки
Nov. 15, 1938.
Filed 001;. 12, 1937
$945’; éSrZé
(Z: 293/ '
the size of the cable to be used in connection
therewith. This construction thus provides a
greater and better contact engagement with the
bond Wires or cables, it being understood that the
spring member is made of a satisfactory current
conducting material such as hard spring copper
or a composition thereof. It will also be under
stood that a plurality of sizes of spring members,
having different sizes of loops, may be made,
10 which will be interchangeable on the same ?tting
to accommodate different sizes of bond wires or
What I claim is:
A parkway cable outlet including a standard, an
insulator ?tting over the end of the standard with
means for fastening it thereto, and having a hole
therein to permit the passage of the parkway
cable therethrough, a stud permanently carried
by the insulator, a spring member positioned on 5
the insulator around the stud, said spring mem
her having locp formations on opposite sides of the
stud and having its ends forming seats carried
directly by the insulator, and clamping means on
the stud for" causing the loop formations to con
tract and grip conductors inserted within said
Patented Nov. 15, 1938
Godfrey Gort, Chicago, Ill., assignor to Western
Railroad Supply Company, Chicago, Ill.
Application October 12, 1937, Serial No. 168,584
1 Claim. (Cl. 247—1)
This invention relates to cable outlets and is
especially useful in connection with railway sig
nal track circuits and the like. In such circuits
the cables are carried in pipes or the equivalent
and connections have to be made to these cables
by means of some outlet which is many times
referred to as a “bootleg”.
It is the object of the invention to be herein
after described to provide a simpli?ed and im
10 proved type of outlet for a parkway cable such as
that previously referred to.
My invention is set forth in the annexed draw
ing, wherein:
Figure 1 is a view, part in section and part in
elevation, showing one form of my improved out
let ?tting.
Figure 2 is a section on the line 2-—2 of Fig
Lu‘e 1.
Figure 3 is a view looking down at the top of
20 Figure 2, with the cable or conductor clamping
means removed from the clamping stud, but with
the base clamp of Figure 2 in position.
Figure 4 is a sectional view on the line 4--4 of
Figure 3.
Figure 5 is a fragmentary sectional view of a
modi?ed form of ?tting.
verse groove I5 therein to receive a base clamp I6
which is also provided with oppositely disposed
grooves I‘! to receive the downwardly extending
ends I8 of a spring member formed with loops I9
and 20 disposed on opposite sides of a hole passing
through the spring member to receive the stud 8.
The loops I9 and 20 are made of a size to receive
the cable to be used in connection therewith.
The spring member is depressed between the
loop formations I9 and 20 to form a saddle type of
seat to receive a compressing means 2| which is
in the shape of a half-cylinder, the curved por
tion of which is located in the saddle formed in
the spring member. Preferably the compression
means 2I is permanently anchored in position in 15
any satisfactory manner, as by soldering, brazing
or preferably spot-welding at one or more points
The compressing means H is provided with a
hole to pass the stud 8.
The top portion 4 of the ?tting is provided with
a hole 23 to pass the parkway cable ‘I, the end of
which is bared and wrapped around'the stud be
tween the washers 24 and held in place by a nut
25 which also acts on the compressing means 2|
and causes the spring member to contract so as
to securely grip the bond wires or cables 26 in
In the various views, wherein like numbers
refer to corresponding parts, I is an outlet pipe
supported on a stand 2 and fastened thereto in
b any satisfactory manner as by set screws 3.
Mounted across the top of the pipe or standard I,
is a ?tting having a top portion 4 and an integral,
place. In some cases, the parkway cable 7 may
be inserted or passed through one or both of the
depending collar portion 5, both being made of
strong insulating material. The top portion 4 has
spring member is entirely done away with, the
transverse grooves I‘! being formed directly in the
top portion 4 of the ?tting. Also in this ?gure
the metal collar Ill, indicated by the dotted line
27, may be entirely done away with, in which case
the wall of the collar 5 is preferably made thicker
a ?ange 5 which extends over the opening in the
member I, carrying parkway cable ‘I.
moulded integral with the portions 4 and 5 of the
insulator, is a stud 8 which is embraced by the in
sulator, preferably having at least one flat surface
as C) to prevent the stud from turning in the insulator.
As shown, this part of the stud is square. It is
also provided with a groove or recess 9 so that
when the insulator is moulded around the stud,
insulation will enter the recess or groove 9 and
We 01 lock the stud 8 permanently in position in the
insulator which comprises the principal or major
portion of the outlet ?tting.
As shown in Figures 1 and 2, the collar 5 of the
insulator may be exteriorly provided with a me
tallic ring it} which may have a ?ange II to en
gage the top of the pipe or standard I. Set screws
I2 and lock nuts I3 may be used to hold the ?t
ting securely to the standard I. Furthermore, as
shown in Figures 1 and 2, the insulator ?tting has
55 an upwardly projecting part I4 having a trans
loops I9 and 20 and held directly to the bond
In Figure 5, the entire ?tting is made of insu
lating material and the base clamp or seat for the
so that it will not be injured by the set screws I2
which, as a matter of fact, need not be set up very
tightly to hold the ?tting in place on the stand
ard I.
In the construction shown in Figure 2, the
?ange I I on the ring IO need not be used, in which
case the flange 6 of the insulator will rest directly
on the standard I. When the metallic ring III is
used, it may or may not be moulded in position
when the insulator is moulded.
It will be noted from Figure 2 that after clamp
ing pressure is applied by the nut 2| to the saddle '“
of the spring member, the loops I9 and 20 con
tract and engage nearly all of the peripheral sur
face of the cables or conductors located within the
loop, it being understood, as previously explained,
that the loops are made of a size compatible with 55
Без категории
Размер файла
239 Кб
Пожаловаться на содержимое документа