' Dec. 31, 1946. C. D. DAVIDSON ‘ 2,413,541 ' DIE 'Filed Jan. 15’, 1945 III 11911 tor @réZZ,F@w%s02z/ 2,413,541 Patented Dec. 31, 1946 UNITED ‘STATES PATENT‘ OFFICE 2,413,547 DIE Cyril D. Davidson, Washington, Pa. Application January 15, 1945, Serial No. 572,956 1 Claim. (01. 140-413 ) . , l 2 ' 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 cable). , 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. 30 v 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. length. CYRIL D. DAVIDSON.