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Патент USA US2404564

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. ‘Jy 23, 19%.'
¿4649564
w. F. ßOE'HLKE
.ELECTRIC SWIVEL CONNECTOR
Filed Jan. 27, 41944,A
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Inventor
2,404,564
Patented July 23,: 1946
¿UNITED _ STATE si PAT'ENTv'oFFlcE ¿ g
2,404,564 'Y'
ELECTRIC SWIVELCONNECTOR
_
-William F. Boehlke, Iios Angeles, Calif.
Application January 27, 1944, Serial No. 519,917
2' claims. (c1. 17a-324)
1
2
.
„
.
Y .This invention relatesl to new and useful im
have small sockets I1, I8, respectively, into Which
provements in electrical connectors, theprinci
conductor wires I9, 20 are secured.
The inner end of the conductor element I5 has
.pal object of the present invention being to pro
vide a connector for interposition inan electrical
i conductor vor conductors, especially for the pur
pose of preventing kinkling or other distortion of
the conductor members.
'
Another important object of the invention is to
provide a swivel connector which can be easily
a semi-globular pocket or socket for receiving the
semi-spherical-shaped head‘2I which is located
on the inner end of a conductor element 22 form
ing part of the section 6. The element 22 has a
longitudinal bore which extends through the head
2Il and this bore is lined with 'a Vsleeve‘23 of in
interposedv in.conductors to prevent twisting or ,10, sulation ’which‘at one end receives a conductor
plug 24 having a small socket' 25 therein for the
other deformations thereof.
'
reception of a conductor wire 26. The adjacent '
Other important objects and advantages of the
end of the element 22 also has a recess 21 for the
invention will become apparent to the reader of
receptionof a conductor Wire 28.
the following description.
15 ‘ The plunger I3 has a reduced extension 29 de
In the drawings:
ñning a shoulder 30 between which and the plug
Figure 1 is a side elevational view of the con
24 a coiled compression spring 3| is interposed,
nector showing the end caps in place,
serving to force the contact I2 against the inner
Figure 2 is a longitudinal sectional view taken
surface of the cup-shaped contact II.
’
on the line 2-2 of Figure 1 with the end caps
The section 6 has a jacket 36 of insulation
20
removed.
which is flared at its- inner end as at 31 to overlap `
Figure 3 is a longitudinal sectional view of the
the inwardly disposed portion of the insulation
socket section of the connector.
, '
Figure 4 is a side elevational view of the spring ` jacket 1 as is clearly shown in Figure 2.
It can be seen, that the sections 5, 6 can swivel
projected contact.
Figure 5 is a longitudinal sectional view'of the 25 and thus prevent twisting or kinkling of the con
ductor wires.
ball section of the connector.
Caps 32 are provided for the ends of the con
Figure 6 is a side elevational view of the spring
projected contact barrel.
'
4
nector and these have tongue portions for dispo
sition in circumferential grooves 33 at the ends
Figure 7 is a fragmentary side elevational view
of the stationary contact'element of the socket 30 of the connector and are also provided with clamp
portions 34, 35 for holding the cap to the connec..Í
section (enlarged).
tor and also for clamping the corresponding con
Figure 8 is a cross section on the line 8--8 of
ductor, thus preventing the conductor from eas
Figure 2.
> .
ily pulling loose from the connector.
`
Figure 9 is an end elevational view oi the con
A
modiñcation
of
the
invention
is
shown
in
Fig
nector.
ures 10 and 11. This modification of the inven
Figure 10 is a side elevational View of a slightly
tion is substantially the same as that shown in
modiñed form of the invention.
Figures 1 and 2, excepting that the inner end of
Figure 11 is a longitudinal sectional View taken
the section 5 is not rolled over the ball head of
on the line I I-I I of Figure 10.
the section 6. As shown in Figure 11, section 6a
It can be seen in Figures 1 and 2, that the con 40 has a ball head 2Ia from which a contact I2a
nector consists of a socket section 5 and a plug
projects` making a riding contact with the cup
section 6, having jackets 1 and 8, respectively, of
shaped contact head IIa of a complementary
some suitable insulation.
section 5a. Instead of having the socket end of
The socket section 5 has a longitudinal bore 45 the conductor I5 of the modi?cation of the inven
therein for receiving an >elongated cylindrical
tion shown in Figure 2 rolled in over the'ball head,
conductor 9 having a cup-shaped contact II
the modified structure shown in Figure 11, has
against which the contact I2 of a slide plunger »
the inner end of the section F1a-reduced andex
ternally threaded as at 40. This `externally
conductor 9 has a jacket I4 to insulate the same 50 threaded portion carries an internally threaded
sleeve 4I having a curved surfaced inner portion
from the outer portion of the- body 5 which de
I3 in the plug section 6 wipes. The cylindrical
ñnes a second conductor element I5. The jacket
I4 is formed at its ends to thoroughly insulate the
butt end I6 of the conductor 9 and also the cup
II. 'The free ends of the conductor elements 9, I5 55
42 for engaging the ball 2 I a so as to prevent its
displacement.v This-form of connector can easily
«be disconnected for the purpose of making _re
pairs.
~
2,404,564
v3
While the foregoing specification sets forth the
invention in specific terms, it is to be understood
that numerous changes in the shape, size and
materials may be resorted to without departing
from the spirit and scope -of the invention as`
claimed hereinafter.
Having described the invention, what is claimed
as new is:
1. An velectrical connector comprising male and
female sections each having a body of conductive
material formed with a longitudinal bore, the
and the last-mentioned conductor urging said
plunger outwardly and maintaining the plunger
in engagement with the cup-shaped end of the
ñrst conductor and outer ends of said sections
and said- conductors being provided with means » for connecting circuit wires therewith. v
2. An electrical connector comprising male and
female sections each having a conductive body
formed with a longitudinal bore and a lining of
insulation `for its bore, said male section having
a head at its inner end >and Athe female section
having a socket at its inner end receiving the
male section having an end formed with a sub-A .
stantially spherical head and the'female section ' Yhead and mountingthe sections for movement
With a socket rotatably and tiltably receiving the '
relative to eachother, the lining for the female
head, jackets of insulation for said sections „hav
ing extended and overlapped inner end-portions,
section having a flared inner end of the inner
end portion `of said socket, a conductor fitting
each section having a longitudinal bore; a lining 1 __ snugly inthe bore of said female section and
` of insulation for the bore of each section, the lin-l
having a contact >at its inner end disposed in
o ing Vof the female section having its'inner end
said socket against the flared end of the lining
portion ñared and countersunk in the inner por
of the female section, a conductor in the bore of
tionof the socket, a conductorextending longi
said maleV section and a contact companion
tudinally through the lined bore of said female
f thereto urged from the inner end of the bore and
` section and having a cup-shaped contact at its
engaging the inner end of the conductor of said
inner end disposed in said socket in engagement
female section, outer ends of said bodies and said
with the ñared end ofthe lining vfor'the female .25 conductor» being formed with wire-receiving
section, a conductor fitted into the lined bore of
sockets, and jackets for said sections having
said'male member through the outer end thereof, y
outer ends formed with openings registering with
a plunger of conductive material slidable longi
the wire-receiving sockets.
tudinally in theinner end portion of the bore of ,
said'male member, a spring between said plunger. 30v
WILLIAM F. BOEHLKE.
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