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' Dec. 31, 1946.
'Filed Jan. 15’, 1945
III 11911 tor
Patented Dec. 31, 1946
Cyril D. Davidson, Washington, Pa.
Application January 15, 1945, Serial No. 572,956
1 Claim. (01. 140-413 )
This invention relates to a die, and more par
ticularly to a die adapted to be utilized in con
junction with a velocity power press.
The upper die block [3 is provided with a pro
jecting shaft M adapted for attachment in any
desired conventional manner to a velocity press.
The upper die [3 has a longitudinally extending
recess [5 therein, the recess being characterized
A primary object of this invention is the pro
vision of an improved die particularly adapted
for pressing a connecting sleeve on the copper
by two aligned concave depressions l6 separated
by a longitudinally extending convexity l1.
conductors (return wires, Simplex .direct current
Now from the foregoing it will be seen that
when a cable sleeve I2 is positioned in the die,
tion is the provision of such a die adapted to press 10 with the sections of the cable to be spliced within
a sleeve on the copper conductors, in such man
it the opposed dies Ill and [3 brought together,
ner that the sleeve is condensed in a shape to
forming the resultant cable, as best shown in
allow more insulation on the return wires for
Figure 2, will take the form as shown at l2’ of a
vulcanizing the splice.
circular cable sleeve I 8 having a longitudinally :
A still further object of the invention'is the 15 extending concave groove l9 throughout the
provision of such a die which when utilized pro
length of the splice.
duces a sleeve leaving no sharp ends to protrude
Thus if the die of the instant invention is
through the insulation, on either the hot wire or
utilized in connection with the return wires of
the return wires.
the roundv mine cable, the concavities l9 may rest
A further and more speci?c object of the in 20 in alignment with the center or hot wire, in such
vention is the provision of a die adapted to pro
manner as .to provide relatively close spacing of
duce a connecting sleeve of unique con?guration,
the inner and outer wires, and at the same time
particularly adapted to return wires surrounding
provide an adequate space for insulation about
the hot wire of a mine cable or the like.
the connecting sleeve on the outer or return wires.
Other objects will in part be obvious and in 25 From the foregoing it will now be seen that
part be pointed out as the description of the in
there is herein provided a die accomplishing all
vention proceeds, and disclosed in the accom
the objects of this invention and others includ
panying drawing wherein there is shown a pre
ing many advantages of great practical utility
An additional important object of this inven
ferred embodiment of this inventive concept.
In the drawing:
Figure l is a perspective view of the die of the
instant invention, shown in open position in con
junction with metal sleeve received on the co
operating block.
and commercial importance.
As many embodiments may be made of this in
ventive concept, and as many modi?cations may
be made in the embodiment hereinbefore shown
and described, it is to be understood that all mat
ter herein is to be interpreted merely as illus
Figure 2 is a perspective view of the connecting 35 trative and not in a limiting sense.
sleeve produced by the use of the die of the in
I claim:
stant invention.
A cable die comprising a, ?xed lower block
Figure 3 is a view partially'in section and par
having a semi-cylindrical longitudinal groove
tially in elevation taken transversely through the
therein, and an upper die movable towards said
vertical center line of the top die of Figure 1, and 40 block to engage the same and having a groove
Figure 4 is a similar sectional view through the
therein characterized by a longitudinally extend
lower die.
ing convexity, the sides of said convexity merg
Having reference now to the drawing, there. is
ing into aligned concavities, said block adapted
generally indicated at ID a lower die, having a
to receive a metal sleeve, and said die when
longitudinally extending semi-cylindrical recess 45 forced to engage said block and sleeve shaping
II therein, in which is adapted to be positioned
the sleeve to have spaced concave sides substan
the metal sleeve l2, of a mine cable or the like,
tially parallel with each other throughout their
a suitable sleeve surrounding the portion thereof~
to be spliced.
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