Telephone Or Switchboard Plug Page: 3 of 3
[1], 2 p. : ill. ; 23 cm.View a full description of this patent.
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nut 5 being positioned as shown in Fig. 4, the I
nut 5 is moved into engagement with the
screw-threaded surface -6 of the clamping
members 3 and 4, and by causing rotation of
5 the nut 5 the same will ride over the mem- I
bers 3 and 4 and as said member advances
it will bring the clamping members into an
approximately parallel position, such posi-
tion being controlled according to the posi-
io tion,,f' the nut 5 upon said clamping mem-
bers. It will be obviousthat if the nut 5 is
moved to the extreme outer end of members.
3 and 4 said members will be retained in a
parallel position. By the closing. of\ the
15 split end portion of casing 1..together the
teeth dr gripping-surface 7 formed thereon
will be caused to-engage the removable flexi-
ble member 8, which is secured within the
split portion of casing 1. As soon as nut 5 is
20 removed from the end portion provided with.
the clamping members said members will
move apart sufficiently to permit of the
ready removal of cord 8 from between said.
members. -
25 From the foregoing description it is to be
noted that the integral structure of the semi-
cylindrical casing and the resilient jaws per-
mit of the free adjustment of the cord 8.and
the terminals'within the casing, as well as the*
30 attachment of said terminals to the binding-.
screws, for the reason that, the semicylin-
drical casing affords ample room for the opera-
tor to fix the terminals upon the binding-
post before the covering is positioned as
35 shown. in Fig. 1, and as the. resilient jaws
spread. apart, Fig. 4, when the locking-nut 5
is not positioned thereon the cord 8 can be
adjusted between the jaws freely before the
conductors are secured to the binding-
40 screws, and after the securing of said conduc-
* tors is accomplished cord 8 can be easily
tightened and the. jaws clamped thereon by
threading the nut 5 upon said jaws. It is
also to be noted that the flat, block 13 is easily
45 positioned upon the edges of, the semicylin-
drical casing..
Owing to the construction of these clamp-
ing means, the strain upon the conductors at
their end portions, which are secured to the
5o binding-posts or plugs, is entirely removed
therefrom and is caused to be exerted upon
the split end 'portion of the casing 1. ,
Having thus fully described my invention,
what I claim as new, and desire to secure by
55 Letters Patent, is-
1. In a "device of the character described,
the combination of a semicylindrical casing,
integral resilientt jaws secured thereto, saidJ
jaws -provided, with toothed, inner and screw-threaded outer surfaces, and an adjusting- 6c
nut removably mounted upon said jaws.
2. In a device of the character described,-
the combination of a semicylindrical casing
provided with an integral cylindrical exten-
sion, said casing having integral resilient 65
semicylindrical jaws, each of said jaws pro=
vided with a roughened, inner surface, and
rotatable means ,removably mounted upon.
said jaws for closing thesame.together.
3. In a device of the character described, 70
the combination of. a semicylindrical cas-
ing provided with an integral, cylindrical,
contact-surface formed upon one end and
with a pair of resilient semicylindrical jaws
of the same thickness formed integral upon 75
the opposite end of said casing, the. longitu-
dinal edges of said jaws positioned in a plane
at right, angles to the 'horizontal, plane in
which the edges of the semicylindrical casing
is formed, when said jaws are in their normal 8o
position for clamping a cord, and longitu-
dinal, adjustable, locking means positioned
upon said jaws.
4. In a device of the character described,
the combination with a casing, of a pair of 85
resilient semicylindrical jaws secured to
said casing, each jaw exteriorly screw-
threaded, the screw-threaded portions of said
jaws formed upon their Outer ends, the outer
screw-threaded ends of said jaws of the same 90
thickness throughout their entire length, a
locking member positioned upon said semi-
cylindrical casing and capable of 'longitu-
dinal adjustment upon said jaws for drawing
the same into parallel position, so as to place 95
their longitudinal edges in a plane at right
angles to the horizontal plane in which 'the
edges of the semicylindrical casing are
formed, for clamping a cord.
5. In a device of the character described, too
the combination of a semicylindrical casing
provided with an integral, cylindrical, taper-
ing portionwformed upon- one end and with
semicylindrical jaws formed upon its oppo-
site end, said jaws provided with a grippig 105
portion formed upon their inner surfaces and.
with a threaded portion formed upon their
outer surfaces, and a nut adapted to be posi-
tioned upon said jaws for drawing the same
into substantially a parallel position for Imo
clamping the cord.
Subscribed by me this 26th day of April,
1904.
ALVA BATTLE DOZIER.
Witnesses:
C. C. HOOPEn,'
J. H. GRIFFITH.!
836,805
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Dozier, Alva Battie. Telephone Or Switchboard Plug, patent, November 27, 1906; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth514636/m1/3/: accessed July 10, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.