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Патент USA US3094784

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June 25, 1963
J. P. NAZAROW ETAL.
3,094,774
ELECTRICAL CONNECTOR HOLDING DEVICES
Filed July 26. 1960
INVENTORS
JOHN P. NAZAROW
HERBERT F. BAILEY
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United States Patent O? ice
1
3,694,774
ELECTRICAL CONNECTOR HOLDING DEVICES
John P. Nazarow, Gardner, Herbert F. Bailey, Winches
ter, and Harold D. Brinsou, Dorchester, Mass, as
signors to Raytheon Company, Lexington, Mass” a
corporation of Delaware
Filed July 26, 1960, Ser. No. 45,419
8 Claims. (Cl. 29-203)
3,094,774
Patented June 25, 1963
2
Threaded passage 18 is provided to receive a set screw
19 to removably retain an adaptor plug 21 in passage 16.
The adaptor plug 21 is provided with a shank portion 22
adapted to ?t in passage 16 and an enlarged head portion
23 having a lower surface 24 adapted for abutting engage
ment with the inner surface 25 of jaw 15. Outwardly ex
tending and oppositely disposed lugs 26 integral with the
exposed end of the adaptor plug 21 are provided and seat
in the side slots 27 of the conductor assembly 28. An
ular to a device for holding for assembly a portion of a 10 axial recess 29 and passage 31 is provided in the adaptor
plug 21 to receive the conductor assembly 28 and permit
sub-miniature electrical connector comprised of several
This invention relates to holding devices and in partic
components.
lugs 26 to seat in the side slots 27 thereof. Set screw 19
removably retains the adaptor plug 21 in jaw 15 so that
The present invention is particularly useful in the as
different adaptor plugs may be used to mate with differ
sembly of sub-miniature connectors and coaxial cables
such as, for example, the sub-miniature connector 15 ent sized conductor assemblies.
Provided in the extreme end portion of jaw 14 is a
S276MS174 and coaxial cable S723MS097 manufactured
recess 32 the rear portion of which is concentric about the
by the Cannon Electric Company. Hcretofore no assern~
longitudinal axis of passage 16. The portion of recess 32
bly tool was available for the assembly of such connectors
adjacent the inner surface 17 of jaw 14 is of such a size
and hand assembly was not feasible on a large scale due
to the ?rmness of a compression spring required in the as 20 as to permit engagement of the inner surface 17 of jaw
14 with the outer surface 33 of the hex nut 34. If de
sembly of the connector and the di?lculties inherent with
sired, recess 32 may be formed oversize and removable
the handling of sub-miniature components. As a result the
sleeves (not shown) provided to reduce the size of recess
assembly of sub-miniature connectors was di?‘icult and
32 to that of the diameter of the coaxial cable being used.
tedious and inevitably resulted in damage to the connec
tor despite the pro?ciency of the assembler. This is neces 25 Utilization of the proper size of sleeve and adaptor plug
will be found to be highly advantageous where it is neces
sarily so since the operation consists of engaging or hold
sary to assemble many different sizes of connectors.
ing a conductor assembly which is substantially covered
by a sleeve nut and threading a hex nut portion onto the
In order to prepare a coaxial cable and connector for
assembly the outer insulation of the coaxial cable 35 is
conductor assembly against a ?rm compression spring
provided within the conductor assembly to insure a satis~ 30 stripped back a suitable distance to expose the shielding
braid. Thereafter the hex nut 34, sleeve nut 37, and com
factory ground connection for the braided shielded por
pression spring 39 are slipped onto the cable 35. The
tion of the coaxial cable.
small metal retaining sleeve 40 is slipped over the shield
In accordance with the present invention which provides
ing braid which is combed out, trimmed and soldered to
versatile and e?icient means for simply, quickly, and e?‘i
ciently assembling such electrical connectors without any 35 the retaining sleeve 40. The inner insulation 41 is then
trimmed back to within a small distance of the soldered
danger of damage to the connector, a double-lugged
braid to expose the inner conductor 36. With the adaptor
adaptor plug is provided in one jaw of a pair of parallel
plug 21 in position as shown in FIG. 1 the hollow center
pliers to receive and hold the conductor assembly and a
probe 42 of the conductor assembly 28 is inserted into
clearance slot in the other jaw of the pliers is provided
to receive the cable and bring the hex nut into proper 40 passage 31 of shank 22 of the adaptor plug 21 so that
the two lugs 26 of the adaptor plug 21 seat in the side
alignment and operational contact with the threaded por
slots 27 of the conductor assembly 28 to hold it in aligned
tion of the conductor assembly so that it may be threaded
and nonrotatable position. Thereafter the exposed inner
thereon. Since the adaptor plug holds the conductor as~
sembly in a ?xed and nonrotatable position and operation 45 conductor 41 of the coaxial cable 35 is inserted into the
center probe 42 of the conductor assembly 28, the spring
of the pliers easily brings the hex nut into aligned and
operational contact with the threaded portion of the con
ductor assembly, the connector may be assembled quickly
39, sleeve nut 37, and hex nut 34 are slid down the co
axial cable 35 into position, and the cable inserted in
recess 32 in jaw 14. Compression of the handles 12-43
and simply by inexperienced personnel without any danger
of a poor electrical connection or damage to the connector. 50 of the parallel pliers 11 will advance the hex nut 34 into
an aligned andoperative position for engagement of the
The novel features that are considered characteristic of
internal threads 43 of the hex nut with the external
this invention are set forth with particularity in the ap
threads 44 of the conductor assembly. Since the adaptor
pended claims. The invention itself, however, both as to
plug 21 holds the conductor assembly 28 against rotation
its organization and method of operation, as well as addi
and the hex nut 34 must of necessity be aligned with the
tional objects and advantages thereof, will best be under
stood from the following description when taken in con 55 conductor assembly a small open-ended wrench 45 or the
like may be used to securely thread the hex nut onto the
nection with the accompanying drawings in which:
conductor assembly and thereby easily and simply com
FIG. I is a pictorial view of the preferred embodiment
plete the assembly of the connector without any danger
of the invention with an assembled connector in position;
of damage thereto.
and
While the present invention has been described in its
FIG. 2 is an exploded view.
preferred embodiment, it is realized that modi?cations may
Referring now to FIGS. 1 and 2 there is shown a pair
be made, and it is desired that it be understood that no
of parallel pliers 11 wherein as the handles 12~13 are
limitations of the invention are intended other than may
squeezed or compressed two oppositely disposed and par~
be imposed by the scope of the appended claims.
allel jaws 14-15 are advanced one toward the other in
What is claimed is:
such a manner as to maintain their parallel relationship. 65
1. In a holder for assembling electrical connectors the
A type of pliers having the requisite operation is the well
known No. 198-8 5/8" parallel pliers manufactured by
Sargent & Company of New Haven, Connecticut.
combination comprising: ?rst and second oppositely dis
posed jaws, said ?rst jaw having a passage at one end and
said second jaw having a recess at its extreme end the
As best shown in FIG. 2, the extreme end portion of jaw
15 is provided with a passage 16 the longitudinal axis of 70 rear portion of which is concentric with the longitudinal
axis of said passage; means for advancing said jaws to
which is perpendicular to the inner surface 17 of jaw 14.
ward each other in parallel relationship; a hollow adaptor
3,094,774
3
plug having a shank portion located in said passage and a
head portion located between said jaws; and two oppositely
disposed lugs integral with the exposed end of said head
portion and extending toward said recess.
2. In a holder for assembling electrical connectors the
combination comprising: ?rst and second oppositely dis
posed jaws each having an inner surface parallel one with
the other, said ?rst jaw having a passage at one end per
4
for coaxial cables the combination comprising: ?rst and
second oppositely disposed jaws each having an inner sur
face parallel one with the other, said ?rst jaw having a pas
sage at one end perpendicular to its inner surface and
said second jaw having a recess at its extreme end per
pendicular to its inner ‘surface the rear portion of which
recess is concentric with the longitudinal axis of said pas
sage for receiving a cable to be connected to said connec
tor; means connected to said jaws remote from said pas
pendicular to its inner surface and said second jaw hav
sage and said recess for advancing said jaws toward each
ing a recess at its extreme end perpendicular to its inner 10 other in parallel relationship; an adaptor plug having an
surface the rear portion of which is concentric with the
axial passage therethrough and a shank portion removably
longitudinal axis of said passage; means for advancing said
located in said passage and an enlarged head portion
jaws toward each other in parallel relationship; a hollow
located between said jaws, the exposed end of said head
adapter plug having a shank portion located in said pas
portion having a cavity concentric with said axial passage;
15
sage and a head portion located between said jaws; and
and two oppositely disposed parallel lugs integral with the
two oppositely disposed lugs integral with the exposed
end of said head portion and extending toward said recess.
3. In a holder for assembling electrical connectors the
combination comprising: ?rst and second oppositely dis
exposed end surface of said head portion and extending
toward said recess.
6. In a holder for assembling electrical connectors the
combination comprising: two oppositely disposed jaws;
posed jaws each having an inner surface parallel one with 20 means for advancing said jaws toward each other in par
the other, said ?rst jaw having a passage at one end per
pendicular to its inner surface and said second jaw hav
allel relationship; a recess in extreme end portion of one
jaw; an adaptor plug carried by said other jaw, said adap
tor plug having a passage concentric with the longitudinal
ing a recess at its extreme end perpendicular to its inner
surface the rear portion of which is concentric with the
axis of said recess; and two oppositely disposed lugs inte
longitudinal axis of said passage; means connected to said 25 gral with said plug, said lugs being concentric with said
jaws remote from said passage and said recess for ad
passage and extending toward said recess.
vancing said jaws toward each other in parallel relation
7. ‘In a holder for assembling electrical connectors, the
ship; a hollow adaptor plug having a shank portion lo
combination comprising a pair of jaws, means for ad
cated in said passage and an enlarged head portion located
vancing said jaws toward each other, and an adapter plug
between said jaws concentric with the longitudinal axis 30 carried by one of the jaws for receiving and holding an
of said passage; and two oppositely disposed lugs integral
article, to b: connected, in an aligned and non-rotatable
with exposed end of said head portion and extending to
position, said adapter plug having a hollow shank portion
ward said recess.
4. In a holder for assembling electrical connectors the
located in a passage in said one of the jaws and an en
larged head portion located between the jaws and having
combination comprising: ?rst and second oppositely dis 35 a longitudinal axis coaxial with the longitudinal axis of
posed jaws each having an inner surface parallel one
said passage.
with the other, said ?rst jaw having a passage at one end
8. In a holder for assembling electrical connectors, the
perpendicular to its inner surface and said second jaw
combination comprising a pair of jaws, means for advanc
having a recess at its extreme end perpendicular to its in
ing said jaws toward each other, and a hollow adapter
ner surface the rear portion of which is concentric with 40 plug carried by one of the jaws, said plug having a shank
the longitudinal axis of said passage; means connected to
portion located in a passage in said one of the jaws and
said jaws remote from said passage and said recess for
an enlarged head portion located between the jaws and
advancing said jaws toward each other in parallel rela
having a longitudinal axis coaxial with the longitudinal
tionship; a hollow adaptor plug having a shank portion
axis of said passage, said head portion having a recess for
45
located in said passage and an enlarged head portion hav
receiving an article to be connected, and a pair of lugs
ing a longitudinal axis located between said jaws and con
located on said head portion on diametrically opposed
centric with the longitudinal axis of said passage, the ex
sides of said recess and extending toward the other of said
posed end of said head portion having a cavity also con
jaws for engagement with said article to be connected.
centric with the longitudinal axis of said passage and
References Cited in the ?le of this patent
larger than the passage in said shank portion; and two 50
oppositely disposed parallel lugs integral with the exposed
end surface of said head portion and extending toward
said recess to receive and hold a portion of said electrical
connector in an aligned and non-rotatable position.
5. In a holder for assembling an electrical conductor
UNITED STATES PATENTS
2,062,986
2,467,969
2,858,601
Baxter _______________ _- Dec. 1, 1936
Debrot ______________ __ Apr. 19, 1949
Cummaro ____________ __ Nov. 4, 1958
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