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Патент USA US2106724

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Feb. 1, 1938.
B. H. COPE
CONNECTER
2,106,724 -
-
Filed March 16, 1956
2 Sheets-Sheet 1
INVENTQ‘R
W, ‘H ~ W
B
'
I
M
ATTORNEY
Feb. 1, 1938.
2,106,724
B. H. CGPE
CONNECTEE
r‘iled March 16, 1935
2 Sheets-Sheet 2
//6
INVENTO‘R
9A3; JhCrfu/
,W
Mal-m4
ATTORNEY
Patented Feb. 1, 1938
' 2,106,724
' UNITEDWSTATTES PATENT OFFICE
2,106,724 '
CONNECTED
Burton H. Cope, Smith?eld, Ohio
Application March 16, 1935, Serial No. 11,476 '
10 Claims. (cl. 173-273)
My invention relates broadly to connecters, and
in some of its more speci?c aspects to means
exposed to the moisture of the atmosphere.
Moreover, it is quite expensive and practically
adapted to ?rmly connect in conductive rela-" impossible to ‘design the grooves in a tapered
tionship two or more conductors to each other, wedge so that‘i‘uniform contact with the conduc
or a ‘single conductor to a terminal connecter, or tors throughout the length of the sleeve and 5
branch lines to a main conductor.
wedge is obtained.
'
_.
My invention eliminates the necessity of using '
It results that usually the grip at the smaller
screws, bolts or wedges employed in many prior part of the tapered plug or wedge is the stronger,
devices’, which loosen with changes in tem-&
ii) perature and with vibration to which most con
ductors are subjected in use, due to wind, tra?lc
and other causes, thus vcausing the connecters
exposed to atmospheric conditions to gradually
corrode and progressively diminish the contact
areas and’ conductivity of the connection, result- ,
ing' in destructive arcing, electrolysis, disturbance
01‘ radio ‘sets, heated connections, increased re
sistance, losses ‘in transmission, interruption of
service and danger to pedestrians.
20
,_
‘
My invention also eliminates the necessity of
using solder, corrosive ?uxes, the inconvenient
solder pot, costly in time and labor, and the ex
cessive heat of soldering, destructive of the orig
which creates an unequal stress, causing the parts
of the connecter,‘ when subjected to vibration, to 10
work loose. Practise has proven that this will
occur from the usual vibrations regardless of how
tight the wedge is originally driven. There is,
therefore, present always the possibility that one
of the conductors will become disconnected, and I5
falling on a power or transmission line will en
danger life.
The tapered ‘construction is not only di?icult
to design accurately, but also requires a relatively
‘long sleeve and wedge, which is expensive, and 20
renders the cost of manufacture a serious objection to its use.
'
My connecter overcomes all these objections by
inal strength of the wire and creating the weakest , the provision of the parts or the connecter with
link, easily broken under strain, resulting in in
parallel surfaces throughout, so that not only 25
terrupted service, short circuits and hazards to can the connecter and its parts be madelma
those in its proximity.
_
.
My connecter‘ also has the advantages of sim
plicity of design, low cost of manufacture and
terially shorter, thus greatly economizing in ma
terial, but also there is eliminated, under vibration, the possibility of the existence of any com
maintenance, ease and rapidity of installation by, ponents of force which would tend to dislodge 30
a, small, simple and inexpensive tool, small, sym
metrical and smooth outside surface, facilitating
taping, adaptability to-all sizes and combinations
the insert from its position within the shell. This
construction also permits me to provide channels
inv the opposed parallel faces of the shell and in
of sizes of both solid and stranded wires, and to
sert, uniform throughout their length, which
all purposes required of connecters, full contact- _ greatly simpli?es thesdesigning of a connecter 35
ing surfaces not subject to corrosion, applicable
to live wires without interruption of service, non
breakable, and making a permanent connection
not affected by vibration, yet easily disassembled
and greatly reduces the cost of manufacture. The
opposed channels in shell and insert are prefer
ably so designed as to correspond jointly to the
circumference of the conductor which seats there
for future use without damage to wires or con
in, so that the contact between conductor and 40'
connecter is complete around substantially the
It has heretofore been proposed to employ a entire periphery of the conductor, and the con
connecter comprising an outer split cylindrical nection is thus sealed against corrosion.
sleeve slightly tapered from one end to the other, ,
One type of my invention contemplates the
adapted to receive a pair of conductors between forcible introduction of the insert into the shell,- 45
which is placed a correspondingly tapered plug in which the conductors have been already placed,
or wedge provided with deep longitudinal grooves in such manner as to cause a strong clamping
at opposite ends of a diameter to receive the re ‘action to be maintained on the conductors after
spective conductors, a portion of which conduc
the parts are in place.
tors projects slightly beyond the periphery of the '
I have devised various expedientsior introduc~ 50
necters.
\
,
wedge to insure contact with the sleeve when the _\ing the insert in a manner'to achieve these
wedge is driven home. This construction is open results without the necessity of resorting to tai
to the serious objection that the projecting con-l pered sleeve and wedge, thus eliminating this
ductors cause a separation of the surfaces of the feature from the connecter with all its attendant _
sleeve and wedge, which results in corrosion when ‘ ills. For instance, the parts may be assembled 55
2,106,724
g2
by ?rst placing a pair of conductors within the
shell at a slightly divergent angle to each other,
placing the insert in the wider portion of the
angle between the conductors, adjacent the end
of the shell, and forcing the insert along the in
a longitudinal arched base portion 2, and legs or
side portions 3 bent to the dimensions of substan
tially one-half of the circumference of the con
ductors 4 to be retained therein. There is fur
ther provided an insert or key member 5 of sub
clined guideways provided by the conductors, into
stantially the length of the shell member.
position between the sides of the shell. It is thus
sides of this key member, as well as the legs or side
portions of the shell, are parallel to the axis of the
connecter and the side surfaces of the key mem
ber are provided with substantially semi-circular 10
channels of the contour of the conductors, respec
tively located therein. While these conductors
are shown in Figs. 1 and 2 as being of substan
tially the same diameter, the connecter can readily
be designed for conductors of different diameters.
seen that the conductors themselves are caused
to perform the function of the‘ tapered wedge
10 heretofore deemed essential to connecters of
this type, the disadvantages of which are avoided
by my invention.
Other forms which my invention may take will
appear from the detailed description.
In the accompanying drawings, showing for
15
purposes of exempli?cation, but without limiting
my invention or claims thereto, certain practical
embodiments of the principles of my invention;
Fig. 1 is a perspective view of one form of my
20 invention showing the position of the parts at one
stage during the process of assembly.
‘
Fig. 2 is a perspective view of the parts as
sembled.
'
'
_ Fig. 3 is a View similar to Fig. 2 showing the
25 shell with a plain base in lieu of the arched base
in Fig. 2.
Fig. 4 is a perspective view of a similar con
struction showing a slightly modi?ed form of
insert.
.
Fig. 5 is a perspective view of the form shown
in Figs. 1 and 2 modi?ed to permit the connec
tion with a plurality of side conductors by means
’ of a single connecter.
Fig. 6 is a perspective view of the construction
' shown in Fig. 5, partially in section, and showing
the parts in an intermediate stage of assembling.
\ Figs. 7 and 8 are top plan views of a modi?ed
form of my invention adapting it to a terminal
connecter, Fig. 7 showing the parts in the act of
40 assembling and Fig. 8 showing the completed as
sembly.
Fig. 9 shows my invention applied as a con
necter for the adjacent ends of separate conduc
tors,‘ and
Fig. 10 similarly shows it employed to connect
45
a pair of service lines to a main line.
Fig. 11 is a fragmentary perspective view of my
shell or clamping device knurled or serrated on
its inner surface to prevent slippage of the con
50 ductor.
Figs. 12 and 13 show a modi?ed form of my in
vention in the preliminary stage and ?nal stage
of assembling, respectively.
Figs. 14 and 15 similarly show the respective
The provision of the longitudinally arched base
portion greatly increases the resiliency of the
clamp and affords a much larger factor of safety
against permanent distortion or cracking of the
base member when forcing the conductors into '
place. It also renders the cross sectional outline
of the assembly more symmetrical and facilitates
taping by effecting a ?rm contact at substan
tially all points of the periphery between the tape
and the connecter while at the same time greatly
improving the design of the ?nished connecter.
It further has the important advantage that it
greatly facilitates manufacture and insures
greater accuracy of fit between the parts when
assembled by dispensing with the sharp knife- '
edge formed between the base of the insert and its
side pockets for the conductors, shown in Fig. 3,
and by providing instead a wide angle between
these parts, as shown for instance in Fig. 2.
Moreover, it affords a much more advantageous '
. angle of bend for the shell than the flat base since
the latter when the sides are bent by forcing the
conductors into place bows upward along its lon
gitudinal median line, making more difficult the
introduction of the insert.
The insert 5 is shown with an opening 1‘, in
- which may be inserted any desired form of lock
ing means such as a cotter pin or the like, which
would also pass through the base, or a set screw
forced against the base.
The parts should be
made of non-corrosive and highly conductive ma
terials of a character which will retain its shape
and condition permanently after assembling.
The parts are conveniently assembled by placing
the conductors within the shell at a slight angle
to each other, locating the insert between the
widened portions of the conductor at the outer
end of the shell with the conductors located in the
channels 6, and then by any appropriate tool or
even by means of a hammer, forcing the insert '
stages of a further modi?cation.
Figs. 16 and 1'7 show my invention provided
with positive locking instruments to prevent sep
aration of the parts.
The
-
'
Fig. 18 shows a further modi?ed form of my
60 invention.
Figs. 19 and 20 show a still further modi?ed
form in the stages of assembling and ?nal as?
sembled condition, respectively.
Figs. 21 and 22 show the same stages applied to
a still further modi?ed form of my invention.
Figs. 23 and 24 show, respectively, two further
modi?cations of my invention.
Figs. 25 and 26 show a further modi?cation in
the preliminary stage of assembly and in its ?nal
70 assembled condition, respectively, and
Figs. 27 and 28 show the same respective stages
in a further modi?cation of my invention.
Referring to the drawings, there is shown in
Figs. 1 and 2 a connecter comprising an outer re
silient shell or clamping member I, provided with
into the position shown in Fig. 2 in which it is co
extensive with the shell and forcibly presses the
conductors against the side portions of the shell,
contact'being made by the connecter parts with
substantially the complete periphery of the con
ductors.
While I have shown the conductors as cir
cular in cross section, it will, of course, be obvi
ous that both the conductors and the channels
may be given any other desired con?guration in
this and in the succeeding modi?cations of my
invention.
Fig. 3 shows a similar construction save that
the base I2 is ?at and the side portions l3 and
insert [5 are shaped, respectively, to take con
ductors l4 and H’ of different diameters which,
in this ?gure, are shown as stranded.
Fig. 4 shows a construction similar to Figs.‘ 1
and 2 save that the insert or key member 5' is
of somewhat di?erent shape permitting assembly
2,100,724
either by the method shown in Fig. 1, or by forc
ing the side portions of the shell apart by means
of a suitable tool preliminary to inserting the
3
with their respective conductors, the material
being such as to retain permanently the set thus
given it.
In the form shown in Fig. 19, the shell member
insert or key member 5’ between the conductors.
Figs. 5 and 6 show the form of connecter illus
is provided with side portions 63 provided at their '
trated in Figs. 1 and 2, one of the side portions
upper
with overturned ?anges 63' between
being shown provided with openings i6 adapted ' which ends
?anges and the conductors resting upon
to receive conductors I‘! which pass therethrough the base 62_is provided an insert 65 of resilient
and have their ends l8 bent parallel to the axis material bowed longitudinally so that it will offer
of the connecter.
'
'
resistance when forced from its position shown
Figs. 7 and 8 show a connecter similar to that in Fig. 19 to its ?nal position shown in Fig. 20,
shown in Fig. 3, in which the base is provided and will accordingly in the latter position exert
with a terminal extension l9 and an insert 2o I a strong force downwardly holding all of the
conveniently provided at one end with a chan
neled extension 2i, about which is passed the
free end of the conductor as shown in Fig. '1', said
‘conductor and key member thereafter being
forced into their ?nal position shown in Fig. 8.
Fig. 9 shows my connecter utilized to connect
the free adjacent ends of conductors 24 and 24',
whose free ends, after passing the connecter, are
wrapped about their respective adjacent con~
ductors.
’
Fig. 10 shows my connecter used to connect two‘
service lines 24" to a main or bus line 4.
parts in close contact, with the conductors locked
in appropriate channels 66 and 66' in the insert, 15
and the shell, respectively. There may also be
provided the aperture 6‘! through which can be
inserted» an appropriate locking means as in Figs.
1 and 2.
'
»
Fig. 21 shows a similar arrangement modi?ed
to secure the ends of a conductor to a terminal
extension, there being shown a box-like shell 13 on
the base of which the conductor rests; preferably
in a channel as in Fig. 19, and against which
bears the insert 15 similarly channeled, said in 25
sert being bowed longitudinally and adapted to be
forced inwardly from its position shown in Fig.
21 to its assembled position shown in Fig. 22,
slippage, of the conductors, and the inner edges [ therelbeing a stop member 15' provided at the
3O
of its ends bell-shaped or rounded at 3' to pre
Fig. 11 shows the shell or clamping member
provided on the inner surface of its side portions
3 with a knurled or serrated surface A to prevent
vent scoring or cutting the conductors when vi
brated.
Fig. 12 shows a shell similar in contour to that
' shown in Figs. 1 and Z‘but'made' of a material
outer end of the insert to engage the seal 15" 30
in “the top of the shell. The shell is also provided
with the extension connecter 19.
In Fig. 23 the resilient shell is adapted to
receive one-half of a split insert 85 in the re
which will take a strong permanent set when cess
provided by one of its side portions 83, aft
bent and ?rmly hold the parts within its side
.er
which
the conductor is inserted in a channel
portions 23 together. The insert or key portion
36 provided in said half of the insert. The other
25 may be conveniently made of non-corrosive half of the insert 85' may be inserted in the
block steel with a channel 25' in its center, the shell by placing one of its ends between the
40 parts being loosely assembled, as shown in Fig.
12, and thereafter the side portions are forcibly conductor and the corresponding side portion 83, 40
pressed together by an appropriate tool into the used as guideways and forcing said half of the
position shown in Fig. 13. The resiliency of the - insert between said conductor and said side por
tion, the edges of the insert and side, portions
insert 25 in its distorted condition, exerts a strong being preferably bell-shaped or rounded as shown
pressure, permanently holding the conductors in in Fig. 11, to facilitate introduction of the in
close contact with the side portions 23 of the sertJ A stop 81 adapted to engage the seat 88 45
she'll.
is provided‘ to prevent said half of the insert
Fig. 14 shows a similar modi?cation in which, passing too far through the shell and an exten
however, the slotted insert 35 is provided with sion connecter 89 is also provided.
beveled ends, 35’ and the insert is inverted and
Fig. 24 shows a modi?cation in which the shell, 50
forced by pressure, appropriately applied, from made
of resilient material, compriseslthe side ‘
its "position shown in Fig. 14 into its position portions
33 and also integrally therewith the in
shown in Fig. 15, thus locking the parts ?rmly termediate
member 95, corresponding to the in
together. In this modification the shell 33 is pref
sert
of
the
other
forms, beveled on its outer edges
erably made of resilient material.
95’, the inner edges of the side portions 93 be 55
Fig. 16 shows a somewhat similar construction ing similarly beveled. The parts are assembled
in which, however, the insert 45 is provided with by placing one conductor between the beveled
a narrowed lower portion with beveled edges >45’ edges on one side and forcing it between a cor
capable of being forced between the conductors, responding resilient side portion 93 and the in-‘
said portion being continued in a tongue 45" termediate portion 95, the second conductor be 60
adapted to pass through an aperture 45"’ inths ing similarly forced into place between the other
base of the resilient'shell 43, the tongue there
side portion 93 and the intermediate member 95.
. after being turned into contact with said base
Fig. 25 shows a modi?cation somewhat similar
f'portion to lock the insert to the‘ shell.
to that shown in Fig. 12 but with the, insert I05
Fig. 17 shows a similar construction in which 1 provided at its lower portion with a projection
a bolt and nut construction 46 is ‘employed to lock I05’ passing through the base I 02 of the shell
the parts together.
and retained in position therein conveniently by
Fig. 18 shows a modification in which the turning over the end of the projection to form
resilient shell is provided with a base portion 52 a head I05", the side portions I03 of the shell
and side portions 53, the base portion being bent being initially bent outwardly to enable the con
upwardly along its longitudinal center to form ductors
to be located in the longitudinal chan
guiding surfaces 52' for the prongs 55' of an
nels in the insert I05, after ‘which the side por
insert or key member 55 made of soft material, tions I03 are forced ?rmly inwardly into the
‘which will permit its prongs 55' to be guided position shown in Fig. 26, in which the resilient
ti along the curved surface 52' into engagement
U-shaped insert forcibly presses the parts per
C: Li
2,106,724
4
manently together, it being understood that the
side portions I 03 are made of a material which,
though bendable, strongly maintains its shape
when once bent.
.
Since the insert and shell may be permanently
connected together by means of the projection
H15’, and its head I05" prior to the introduction
‘ of the connecters, it will be seen that I have
provided a one piece connecter which will great
10 ly simplify the operation of installing it in place.
Fig. 27 shows a further modification of my in
vention in which the insert H5 is made in two
parts having inclined serrated edges H5’, one
of the parts being provided with retaining lugs
15 H5" adapted to engage seats H5”' to hold it
in place about one of the conductors, the other
3. A connecter comprising a clamping mem
ber having side portions to receive at least one
conductor of predetermined size therebetween,
and insert means of such size and shape to co
operate alone with said conductor and sides to
e?ect by endwise movement of said insert a cam
action causing a forced connection of said con
ductor to said connecter with the sides of the
connecter and insert in final assembled position
lying parallel to the axis of said connecter, where
by no resultant disengaging forces will arise due
to vibration or other extraneous causes, after the
parts are assembled.
4. A connecter comprising a clamping mem
ber having side portions to receive at least one
conductor of predetermined size therebetween,
and insert means of such size and shape to co
conductor being placed against the opposite side '0 operate alone with said conductor and sides to
portion H3, and thereafter the narrow end of ' effect by endwise movement of said insert a
the other part of the insert is placed between
forced connection of said conductor to said con 20
20 the first part of the insert and said second con
necter with the sides of the connecter and insert
ductor and, guided by the engagement of‘ its in ?nal assembled position lying parallel to the
channel H6 with said conductor, is forced by. axis of said connecter, whereby no resultant dis
an appropriate tool into its ?nal position as
engaging forces will arise due to vibration or
other extraneous causes, after the parts are as 25
shown in Fig. 28, the parts being firmly locked
together by the serrations H5’ and the lugs H5"
in engagement with their seats H5'”.
sembled.
While I have described the best forms of my
invention known to me; it will be understood
that changes may be made in the forms disclosed,
tudinal eccentric downwardly arched portion.
6. .The combination defined in claim 4 in which 30
30 without departing from the spirit of my inven
tion, and that certain features may sometimes
juxtaposed channels are provided in the con
necter shell and. the insert to directly engage
the conductor at substantially all points about
be used-to advantage without corresponding use
of other features, and that my invention may be
its periphery.
7. The combination defined in claim 4 in which 35
at least one side portion is provided with one or
more apertures through each of which a con
ductor may extend, the internal end or ends of
said conductor or conductors being bent parallel
adapted to various uses, in addition to those
35 shown, it being my intention to cover in the
claims all equivalent structures capable of anal
ogous uses, such terms as “conductor” and the
like, being intended to embrace the use of rods,
bars or wires, of whatever shape and use, in as
sociation with which the connecter functions to
join together parts in the manner disclosed or
in an equivalent manner.
I_ claim:
'
_
5. The combination defined in claim 4 in which
the clamping member is provided with a longi
‘to the axis of said connecter and being clamped 40
thereto by said insert.
8. The method of assembling a connecter com
prising a shell having a base portion and side
\portions and an insert member with parallel
1. A connecter comprising awlamping mem
-ber having a base portion with a central lon
gitudinal downwardly eccentrically arched por
tion and two side portions adapted to receive a
pair of parallelly-arranged conductors therebe
tween, and an insert with parallel sides, shaped
50 to be guided between and along said conductors‘
from a point outside said side portions when
said conductors are initially inclined slightly to
‘each other to form an inclined guiding camway
for said insert, said insert, when forced into
sides, in operative position about two conductors 45
of predetermined size to be firmly connected
together, which consists in inserting said conduc
tors between the side portions of the shell at
a slight inclination to each other, placing the
insert in the wider portion of the angle-between 50
them, and forcing said insert along the inclined
guideways provided by said conductors into posi
tion between said side portions, said insert being
of such size and shape as to eifect a forced con
nection of said conductors to said connecter with
55 ?nal position, being adapted to press said con- ' the sides of the connecter and insert in final
ductors against said side portions and maintain assembled position lying parallel to the axis of
all contacting surfaces of said conductors, side ‘
portions and insert in position parallel to the
axis of said clamping member.
2. A connecter comprising a clamping mem
ber having a base portion and two side portions
adapted to receive paralleliy-arranged conductors
of predetermined size therebetween, and an insert
with parallel sides, shaped to be guided between
65 and along said conductors from a point outside
said connecter.
_
.
v
9. A connecter comprising a clamping mem
ber having a base portion and two side portions,
each side portion being provided with a pocket
adapted to receive, respectively, one of a pair
of parallel conductors of predetermined size, said
side pockets being of substantially the same ra
dius of curvature as said conductors and adapt
ed to directly contact said conductors about a
portion of their periphery and an insert with
said side portions when said conductors are ini
tially inclined slightly to each other to form an parallel sides provided with side pockets of sub
inclined guiding camway for said insert being of stantially the same radius of curvature as said
such size and shape that said insert, when forced conductors and adapted to directly contact said 70
70 into ?nal position, presses said conductors against \ conductors about substantially the remain;
said side portions and maintains all contacting ing portion of their periphery which is supple
surfaces of said conductors, side portions and mentary to that engaged by said side portions,
insert in position parallel to the axis of said said insert being adapted to be guided between
and along said conductors from a point outside,
75 clamping member.
2,100,724
said side portions when said conductors are ini'
tially inclined slightly‘ to each other to form an
inclined guideway for said insert being of such
size and shape that said insert when forced into
final position presses said conductors against
said side portions and maintains all contacting
surfaces of said conductors, side portions and
insert in position parallel to the axis of said
clamping
10
member.
>
,
'
10. A connecter comprising a clamping mem
ber having a base portion with a central lon
gitudinal downwardly arched portion and two
side portions, each side portion being provided
with a pocket adapted to receive, respectively,
one of a pair of parallel conductors, said side
ipockets being of substantially the same size as
5
said conductors and adapted to directly contact
said conductors about substantially half of their
periphery and an insert with parallel sides pro
vided with side pockets of substantially the same
size as said conductors and adapted to directly
contact said conductors about substantially the
half of their periphery which is supplementary
to that engaged by said side portions, said in
5
sert when forced into ?nal position being adapted
to press said conductors against said side por 10
tions and maintain all contacting surfaces of
said conductors, side portions and insert in posi
tion parallel to the axis of said clamping mem
ber.
BURTON H. COPE.
15
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