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Патент USA US2105465

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Jan. 18, 1938.
E. F. BANNON
'
2,105,465 '
CORD CONNECTER BODY
Filed April 22, 1936
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33 INVENTOR
ATTORNEYS ,
2,105,465
Patented Jan. 18, 1938 l
UNITED STATES . PATENT OFFICE
CORD CONNECTER BODY
Edward F. Bannon, Bridgeport, Conn., assignor
to Harvey Hubbell, Incorporated, Bridgeport,
'
Conn., a corporation of Connecticut
Application April 22,
7 Claims.
1936, serial No. '15,729 y
(C1. 173-332)
This invention relates to new and useful im
provements in electrical connecters and has par
ticular relation tol a cord connecter body.
An object of 'the invention is to provide an elec
5 trical connecter wherein the contacts are securely
held against casual movement out of their re
yspectìve proper places in the connecter.- `
Another object is to provide in a connecter in
cluding a contact mounting body and a casing
`receiving' such body, cooperating means between
the contacts and body for retaining the contacts
in the body.
'
Other objects and advantages will become ap
parent from a consideration of the following de
tailed description taken in connection with the
Y _accompanying drawing wherein a satisfactory
embodiment of the `invention is shown. How
ever it is to be understood'that the invention is
`not limited to the details disclosed but includes
20 all such variations and modiñcations as fall with
in the spirit lof the invention and the scope of
the appended claims.
-
-
In the drawing:
Fig. 1 is a partial side elevation and partial
25 section. the section being taken substantially
_
Body IIl is provided with recesses I2 mounting
current contacts 'I3 and may also be provided
with a similar recess I4 mounting a ground wire
contact I5. The recesses I2 open through the
inner end of the body Ill and terminate in ra
dially extending openings-or recesses I6 while
the recess I4 also opens through the inner'end
of the body and terminates in an opening- or re
cess I1. Entrance slots I8 are provided through
>the outer end .Wall of body Ill providing for the
insertion into the respective body recesses of
blade type contacts on connecter caps.
`
` The various recesses intermediate the ends of
the body II), immediately inwardly of the inner
ends of the entrance slots, are laterally enlarged
as at `I!) and such enlarged portions _of the re
cesses are connected with the more lrestricted
portions thereof by inclined side walls 20. In
its _inner end the body is provided with slots or .
recessesf2l extending laterally from the openings
I6 and with a slot or recess 22 spaced from the
opening I1 by a wall portion 23.
Each contact I3 includes a pair of elongated,
finger-like, resilien‘t members 24 and 25 detach
ably connected by a screw 26 which also serves
as a binding post screw for connecting a conduc
Fig. 2 is a top plan view of the connecter a tor as will be understood. The screw 26 kthreads
»into a hub portion 21 on the member 24 and
part being broken away;
Fig. 3 is a view taken substantially along the clamps the inner end portions of the members 30
against one another. Member 24 is offset inter
line 3--3 of Fig. 4;`
_
Fig. 4 is a ,bottom plan view of the connecter mediate its ends as at 28 so that while the outer
along the line I-I oi' Flg.`2;
'
body:
`
Figs. 5 and 6 are detail views showing a means
employed for preventing relative tumingof the
body- and casing of the connecter:
'
` i
Figs. 7 and 8 are elevational views at right
angles to one another showing a contact em
ployed;
'
.
Figs. 9 and l0 are views similar to Figs. 'l and 8
40 but showing a slight modification of contact con
struction employed for the ground connection;
and
~
Fig. 11 is a sectional view showing the manner
of inserting a contact'in or removing acontact
from the connecter body.
Referring in detail to-the drawing the 4inven
tion is >shown by way of illustration as embodied
in a three wire cord connecter including an in
sulating body lli and an outer member or casing
II receiving the inner end portion of said body.
It is however also adapted for two wire connecters
or single piece or other types oi' connecters. The
casing II is also of insulating material and both
it and the body are preferably molded of live
rubber.
.
end portions of said members are normally in
engagement at 29 they may be sprung apart in
parallel relation by the insertion of a blade con
tact between them and will grip such blade con- -
tact and make a good electrical engagement with
it._ Beyond point 29 the Ámembers are bent to
incline upwardly in opposite directions provid
ing portions 30 extending away from one an
other, and the extreme ends of the members are 40
then again bent providing downwardly and out
wardly inclined portions or flanges BI. In addi
tion -at its inner end member 25 isprovided with
lateral wing-like extensions 32.
V
Contact I5 includes one of the members 24
and also includes a member 25a corresponding
in all respects with the member 25 except that‘
member 25a does not include lateral wing-like
extensions but does include an extension com
prising a hook-like portion generally designated
0
33 and including a flat plate-like part 34 and a
part or lug 35 at the outer edge of the part 34
fand spaced from but substantially parallel with
the main body oi the member 25a.
'
When the vcontacts I3 are -in their recesses in
55 "
2.
2,105,468 .
the body their outwardly bent portions 3I| are bodyvIIl the inner end of the latter is inserted
disposed in the laterally enlarged portionsl I9 of` in‘the casing or cap I I as shown in Fig. »1.` Such
the recesses while the wing-like extensions 32 of . casing includesa tubular extension 36 having an
the members 25 of the contacts occupy the slots
2I extending laterally from the openings I6. The
, disposal of the extensions 32 in- the slots 2l pro
vides a structure preventing the contacts from
opening 31 therethrough for a conductor cable
(not shown).
On extension 36 is a cable clamp
comprising similar members 36 having ears 39
connected by screws 40 threaded into one clamp
being pushed entirely through the recesses.
' and adapted to be tightened to draw such mem
The laterally bent outer end portions 3U of berstoward one another and thus clamp the
10 the respective members of each contact are in
tubular extension 36 against a cable passing there 10
engagement or are substantially in engagement through and remove strain on the cable from
with the side walls of the laterally enlarged por
the connection of the leads to the binding
tions I9 of the recesses I2 and thus 'overlie theinclined wall portions 20 of the recesses thereby
At the upper end of the `casing lII there is
preventing the .contacts from falling out of the an .annular inturned lipl or bead 4I received in
body .or from being pushed out of the body a groove 42 in the body Il) when the latter is
through the inner ends of the recesses. 0n a partially inserted into the casing and- inwardly
blade contact being inserted through an entrance of such bead 4I is a shoulder 43 against which
slot I8 it enters between Vthe pair of members of »the inner ‘end of body III seats. The wing-like
20 a contact forcing such members apart and caus
extensions 32 of contacts I3 and the plate-like 20
ing their extreme end portions 3l to have a part 34 of contact I 5 also engage against this
greater effective -width to thus engage inclined vshoulder 43 and the -shoulder thus -serves to
'~ walls 20.0f the enlarged recess portion I9, thereby prevent such contacts moving or being pushed
screws
26.
.
.
,
'
'
still more effectively locking the contact in the ' out of the body I0 when the body and casing »
>are assembled. In one vside such body is pr‘o 25
body.
.
‘
~
When a contact IIii is in place the plate 34
of its hook-like portion 33 overlies 'a part of -the
inner end of the body while its upturned part
35 enters the slot or notch 22 in suchend of the
body. This ilat end 34 serves to easily distìn~
guish the grounding contact from the other con
tacts when the electrician is making the lead wire
connections, and indicating marks such for exam
ple as GR maybe lstamped on it if desired.
Otherwise contact I5 functions in the same man
ner as the contact-I3, the oppositely extending
outer end portions of its members occupying the
laterally enlarged portion of its recess to prevent
-the contact falling or being casually pushed out
vided with a recess 44 and the casing II is pro
vided with a corresponding projection or lug 45
entering the recess 44 when the casing and the
body areassembled -whereby the-casing and body
are held against relative turning movement.
Having thus’set forth the nature of my inven
tion, what I claim is:
l. A connector comprising an insulating body
having a recess therein opening through its inner
end and having an entrance vslot in- its outer end
for the insertion of a blade type contact, said
recess being enlarged in its- portion immediately
at the inner end of said entrance slot with a nar
rower portion inwardly of said enlargement, a
of place through the inner end of the, body I0. > contact in said recess and comprising a pair of 40
Obviously the hook-like part 33 of the contact separable resilient' members and a screw con
will prevent the latter being pushed too far into necting said members, and said members having
the body. It is' to be understood that all of the their portions'in the larged portion of .the recess
contacts might be of the same construction and `bent away from one another providing ilanged
it is further to be understood that the invention portions of greater width than the narrowed por 45
is not limited to' a connecter mounting three con
tion of the recess to retain the contacts in the
tacts since obviously .the ground contact may be
omitted.
.
. Whenthe contacts are in place in the body
they may not fall out of place or be casually
pushed out of place, and'in fact a contact may
not be removed from the body except by removal
of the screw 26 and withdrawal of the members
or iinger-like pieces thereof one at a time through
the inner end of a body. The openings I6 and
I'I give `access either for the insertion or the
removal of the screws 26.
Fig. 1l suggests the vmanner of applying or
removing a contact, and in this connection it is
pointed out that the contacts may be applied or
removed only by detaching or releasing their
recess.
-
'
' 2. A connecter comprising an insulating body
having a recess therein opening through its in
ner end and an entrance slot through its outer
end for the insertion of a blade type contact, said
recess being laterally enlarged in its portion at
'the inner end oi said entrance slot and having a
narrower portion inwardly of said enlargement a
contact `in said recess - and comprising. a pair 55
ofmembers means detachably connecting the in'
ner ends of said members, said members toward
4their outer ends substantially in engagement and
laterally enlarged and extending into the en
larged portion lof the recess whereby the contact 60
is prevented from being pushed out of the body
members from one another by removing the screw . and can be removed therefrom only on separating
26 and then inserting the members one at a time said members and withdrawing them one at a.
into a recess through the inner end of the body time through the inner end of the recess and
' I0 or removing such members one at a time
through the inner end of the body. As shown
whereby on insertion of a blade type contact 66
between said members they are forced apart at
in Fig. 11 screw 26 is absent and member 24 has , their extreme ends to cooperate with the Walls of
either just been inserted into recess I4 and mem
the enlarged portion- of_ the recess to prevent
» ber 25a is being inserted after> which thescrew longitudinal movement of the contact.
»
70 will be applied, or it may be considered that
3. A connecter comprising an insulating body
screw 26 has just been removed and member 25a having a recess therein opening through the inner
is being removed, after which member 24 may end thereof and a blade type contact entrance slot
be easily removed. However the assembled con o leading to said recess from the outer end thereof,
tact can neither be applied nor removed.
said recess being laterally enlarged intermediate
After the contacts have been assembled in thes, _ the ends of the body, said body' having a slot in 76
3
9,105,465
i 'its inner end, a contact in said recess comprising
a pair of'connected members having laterally
extending portions projecting into the laterally
enlarged portion of the recess whereby to pre
vent movement of the contact out of the body
Y through the inner end of the recess, anexten
sion on one of said members and disposed in said
slot at _the inner end of the body to prevent
movement of the contact outwardly through the
' recess, and means detachably» connecting said
members whereby they may be released from one
another and removed oneata ytime through the
innerendofthebody.
,
`
'
'k
4. A connecter comprising an insulating body
having a recess therein opening through the in
ner end thereof and a blade type contact entrance
slot leading to said recess from the outer end
thereof, said recess being laterally enlarged _in
another and withdrawing them oneV at a time
through the inner end of the recess and where
by on insertion of ablade type contact through
vsaid slot between said members they are forced
apart and their extreme ends caused to coact
with the resilient walls of 'the enlarged portion
oi.' the recess to retain the contact in the recess.
6. A connecter comprising an insulating body4
having a recess opening through the inner end
thereof and an entrance slot leading to said recess 10
from the outer end thereof, said recess being
laterally enlarged intermediate the ends- of the
body, said bodyv having a slot in its inner end
spaced from said recess, a contact in said recess
and comprising a pair of connected members hav
the laterally enlarged portion of the recess where- '
into the laterally enlarged‘portion of the recess
whereby to prevent movement of the contact out
by to prevent movement of the contact outof the
body through the inner end thereof, a hook-v
shaped extension- on one of said members land
having its end portion disposed in said slot in the
inner end of the body and preventing movement
of the contact _outwardly through the recess, and
of the body through the inner end of the recess,
means
- termediate the ends of the body, a contact in said
recesslcomprising a pair of separable members
having laterally extending portions projecting
means detachably connecting said members, and
the narrower portion ofl said recess being of a
width to permit removal of the members one at ‘ a time through the inner end of the recess after
15
ing laterally extending portions projecting into
detachably
connecting
said y members
whereby they may be released from one another
and then removed one at a time through the in
ner end of the body. '
`
'7. A connecter comprising an insulating body>
having a recess opening through its inner end
.
5. A connecter comprising a resilient insulating and having an entrance slot leading to said recess 30
body having a recess therein opening through its from the outer end of the body, said recess being
inner end and having an entrance slot through laterally enlarged intermediate the ends of the
its outer end for the insertion of a blade type body, a contact in said recess and comprising a
‘ contact, said recess being laterally enlarged in pair of members having laterally extending por
its portion at the inner end of said entrance slot, tions projecting into -the laterally enlarged por 35
ay contact in 'said recess comprising a pair of tion of the recess whereby to prevent movement
elongated resilient members.' means detachably of the contact out of the bo'dy through the inner
the members are disconnected.
connecting said members at their inner ends, said
end of the recess, means detachably `connecting
, members toward their outer ends being substan- ‘
said members, and said means operable to con
portions bent away from one another and extend
ing into the enlarged portion of therecess where
by the contact is prevented from being pushed
out of the body and can be removed from the
body only on detaching said members from one
into the body whereby they may be inserted one
tialiy in engagement and having their outer end ' nect said members after they have been inserted 40
_
-
lCERTIFICATE
«Patent No'. 2,105,1t65. Í
»
l
l
-
.
‘
at a time through the inner end of the recess and '
then connected to prevent their casual removal
.from the body.
`
EDWARD F. BANNON.
OF CORRECTION.
_
EDWARD
A
-
-
January 18, A193,8.v
F. BANNON.
It is hereby certified that error appears in the printed specification ¢
ofthe above numbered patent requiringcorrection as follows: Page 2, second
column, line )45, 4_claim l,k for "lar-ged" read enlarged; line 5h, claim_ l2,
after "enlargement" insert acomma; and that the said Letters Patent " should
.he residr with this correction therein that the same may conform to the rec
ord of the casein lthe 'Patent- Office.
Signed and sealed this 21st day of _FebruarL A. D. H1959.
_
Henry Van Arsdale.
(Seal)
Acting Commissioner of Patents.
45
3
9,105,465
i 'its inner end, a contact in said recess comprising
a pair of'connected members having laterally
extending portions projecting into the laterally
enlarged portion of the recess whereby to pre
vent movement of the contact out of the body
Y through the inner end of the recess, anexten
sion on one of said members and disposed in said
slot at _the inner end of the body to prevent
movement of the contact outwardly through the
' recess, and means detachably» connecting said
members whereby they may be released from one
another and removed oneata ytime through the
innerendofthebody.
,
`
'
'k
4. A connecter comprising an insulating body
having a recess therein opening through the in
ner end thereof and a blade type contact entrance
slot leading to said recess from the outer end
thereof, said recess being laterally enlarged _in
another and withdrawing them oneV at a time
through the inner end of the recess and where
by on insertion of ablade type contact through
vsaid slot between said members they are forced
apart and their extreme ends caused to coact
with the resilient walls of 'the enlarged portion
oi.' the recess to retain the contact in the recess.
6. A connecter comprising an insulating body4
having a recess opening through the inner end
thereof and an entrance slot leading to said recess 10
from the outer end thereof, said recess being
laterally enlarged intermediate the ends- of the
body, said bodyv having a slot in its inner end
spaced from said recess, a contact in said recess
and comprising a pair of connected members hav
the laterally enlarged portion of the recess where- '
into the laterally enlarged‘portion of the recess
whereby to prevent movement of the contact out
by to prevent movement of the contact outof the
body through the inner end thereof, a hook-v
shaped extension- on one of said members land
having its end portion disposed in said slot in the
inner end of the body and preventing movement
of the contact _outwardly through the recess, and
of the body through the inner end of the recess,
means
- termediate the ends of the body, a contact in said
recesslcomprising a pair of separable members
having laterally extending portions projecting
means detachably connecting said members, and
the narrower portion ofl said recess being of a
width to permit removal of the members one at ‘ a time through the inner end of the recess after
15
ing laterally extending portions projecting into
detachably
connecting
said y members
whereby they may be released from one another
and then removed one at a time through the in
ner end of the body. '
`
'7. A connecter comprising an insulating body>
having a recess opening through its inner end
.
5. A connecter comprising a resilient insulating and having an entrance slot leading to said recess 30
body having a recess therein opening through its from the outer end of the body, said recess being
inner end and having an entrance slot through laterally enlarged intermediate the ends of the
its outer end for the insertion of a blade type body, a contact in said recess and comprising a
‘ contact, said recess being laterally enlarged in pair of members having laterally extending por
its portion at the inner end of said entrance slot, tions projecting into -the laterally enlarged por 35
ay contact in 'said recess comprising a pair of tion of the recess whereby to prevent movement
elongated resilient members.' means detachably of the contact out of the bo'dy through the inner
the members are disconnected.
connecting said members at their inner ends, said
end of the recess, means detachably `connecting
, members toward their outer ends being substan- ‘
said members, and said means operable to con
portions bent away from one another and extend
ing into the enlarged portion of therecess where
by the contact is prevented from being pushed
out of the body and can be removed from the
body only on detaching said members from one
into the body whereby they may be inserted one
tialiy in engagement and having their outer end ' nect said members after they have been inserted 40
_
-
lCERTIFICATE
«Patent No'. 2,105,1t65. Í
»
l
l
-
.
‘
at a time through the inner end of the recess and '
then connected to prevent their casual removal
.from the body.
`
EDWARD F. BANNON.
OF CORRECTION.
_
EDWARD
A
-
-
January 18, A193,8.v
F. BANNON.
It is hereby certified that error appears in the printed specification ¢
ofthe above numbered patent requiringcorrection as follows: Page 2, second
column, line )45, 4_claim l,k for "lar-ged" read enlarged; line 5h, claim_ l2,
after "enlargement" insert acomma; and that the said Letters Patent " should
.he residr with this correction therein that the same may conform to the rec
ord of the casein lthe 'Patent- Office.
Signed and sealed this 21st day of _FebruarL A. D. H1959.
_
Henry Van Arsdale.
(Seal)
Acting Commissioner of Patents.
45
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