Патент USA US2109073код для вставки
FehZZ, was. M. B. .NIEMAN 2,109,073 WIRE TERMINAL LUG Filed Feb. ~ 11, 1935 IN mew/v .B’. Mt'M/IN W V , Patented Feb. 22, 1938 2,109,933 UNITED STATES PATENT OFFI€E 2,109,073 WIRE TERMINAL LUG Marvin B. Nieman, St. Louis, Mo. Application February‘ 11, 1935, Serial No. 5,921 3 Claims. (Cl. 173—269) My invention relates to terminal lugs or clips for electrical conductors, and more particularly to such lugs or clip-s formed of sheet metal. One object of my invention is to provide a 5 sheet metal terminal lug of relatively simple and convenient form, one portion thereof compris ing a pair of sleeves arranged in spaced relation side by side and being pierced intermediate of these sleeves by an aperture for engaging a 10 binding post of a terminal, and another portion thereof, longitudinally spaced from the ?rst mentioned portion, comprising a pair of laterally disposed tabs adapted for folding over and down pose of electrically connecting a pair of conduc tors to that board. Figure 2 is a similar view of the terminal lug of Figure 1 shown detached from the instrument board and its terminal, the ends of two wires or conductors being shown as engaged thereby. Figure 3 is a side elevation of the detached terminal lug, the subject matter of my inven tion. Figure 4 is a section on the line 4-4 of Fig 10 ure 3. Figure 5 is a section on the line 5—5 of Fig ure 3. upon the insulated ends of a pair of electrical 15 wires or conductors for connecting sameto the terminal lug, the stripped ends of the said wires being inserted within the said sleeves and locked Figure 6 is-a diagrammatic or plan View of a blank well adapted for forming up so as to eifec 15 in place by turning down the nut of the binding post thereupon. Another object of the inven accordance with my invention. In practising this invention I provide a blank as indicated generally at Ill in Figure 6, the 20 same being made of any suitably conductive ma terial, such as metal, and including a medial section or fold I I and lateral sections, folds or Wings I2 and I3, which are designed to fold in wardly upon the medial section, as shown in the other views of the drawing, to form the com 20 tion is to provide a sheet metal terminal lug or clip, one portion thereof comprising three folds or thicknesses of the metal forming a pair of laterally spaced sleeves for engaging the stripped extremities of a pair of electrical wires, there 25 being an intermediate aperture for engaging a binding post of a terminal, and the other and longitudinally positioned portion of the same lug comprising a pair of laterally spaced tabs adapt ed for folding over inwardly and down upon 30 the insulated ends of the said wires immedi ately back of the stripped ends thereof for pro tecting that insulation, whereby the said wires may be ?rmly and electrically connected to the said terminal. Still another object is to provide a form of metal blank or blank of any suitably conductive material adapted for conveniently tually embody and provide the constituent parts and elements of a terminal lug or clip made in pleted device. The three sections, II, I2 and iii are demarked or laid out to extend longitudi nally of the blank, as indicated in the dotted lines in Figure 6, and are of approximately equal area. As thus demarked the three sections are seen to be of an elongated form, so that when they are folded together they form the substan tially elongated terminal lug or clip indicated generally at I4 in Figures 1, 2 and 3. The blank It is further demarked at opposite sides, at sub stantially medially aligned points, by incisions forming up into a pair of laterally spaced sleeves for engaging the stripped ends of a pair of elec trical wires, with an aperture for engaging a 4 O binding post formed between the sleeves, and a pair of separate and laterally spaced sleeves lon gitudinally aligned with the ?rst named sleeves and adapted for engaging the insulation covered portions of the said wires immediately back of 45 the stripped ends thereof. side portions I 6 of the blank, as de?ned at one side of the notches I5, are extended somewhat With foregoing objects and advantages in View, so spaced and located upon a line extended attention is directed to the several structural features of the invention and its adaptation in use, as exempli?ed in one preferred embodiment thereof illustrated in the accompanying draw ing, and wherein: Figure 1 is a top plan view showing a terminal lug made in accordance with my invention, as 55 mounted upon an instrument board for the pur or notches I5 extended substantially half-way thru the outer sections I2 and I3, on a line ex tending transversely of the blank. The aligned 40 beyond the side portions I‘! at the other side of said notches, for a purpose later to be pointed out. The side portions I6 of the sections ll, I2 45 and I3 ‘are pierced with aligned apertures I8, transversely of the blank, that when the sec tions are rolled over and folded down together for the purpose of bringing these apertures into 50 registry as shown in Figure 5, for forming in the completed device the medial binding post aperture I8a, there will be also formed and pro vided the laterally disposed wire engaging sleeves I6a, one at either side of the aperture l8a, adapt 55 2 2,109,073 ed for engaging the stripped extremities 28a of the outer sections, portions of the blank at one the electrical wires or conductors 2i], normally side of these notches being extended somewhat beyond the portions at the other side of the notches, the portions of the sections at the ex tended side of the blank being pierced with aper tures so spaced and located in alignment, that when the three sections are rolled and folded to covered by the insulation 20b. Similarly the'free marginal portions or tabs I‘! may be rolled over inwardly to form the sleeves I ‘la vfor engaging the insulation covered ends 2% of the said wires, im mediately back of the stripped extremities, thus protecting the insulation at those points and co— operating with-the sleeves l?a for locking the 10 Wires in place within the lug. In the manufacture of this lug or clip the two pairs of sleeves [6a and Ila, are all preferably formed up ready for the free or loose insertion gether for bringing the said apertures into registry there will be also formed two laterally disposed wire engaging sleeves for engaging the stripped extremities of a pair of electrical conductors and two somewhat larger sleeves longitudinally aligned with the ?rst mentioned sleeves for en of the ends of the wires, in manner pointed out. That is to say, these sleeves are formed slightly gaging the adjacent insulation covered portions of those conductors immediately back of the 15 larger in diameter, than the stripped portions stripped ends thereof, whereby said ?rst men tioned sleeves'will be positioned against spread ing by a'binding post engaged in the apertures and insulated portions, respectively, of the said ends, so that the ends may be inserted'freely into place within the lug. In the use of the lug, after 20 the wire ends are ?rst inserted invthe manner pointed out, the sleeves are pinched tightly down onto the wire ends, thus locking them ?rmly in place. When this is done, the lug maybe located upon the binding post 2| of the terminal 22 which is secured by a screw 23 to the instrument board 24. This is accomplished by pas-sing the binding post thru the aperture l8a of the lug, and turn ing down the nut Zia. upon the threaded post, and tightly down upon the lug. In this operation 30 the nut preferably overlaps the sleeves [6a, as shown in Figure 1, whereby means is afforded for eifectually pinching and pressing the walls of the sleeves inwardly upon the stripped ends of the wires for locking them in place and also for insuring good electrical connection. This device affords a simple and effective means for connecting a pair of wires to a terminal block or instrument board. It has other and varied uses however, as for connecting a pair of wires 40 to a single wire, or for connecting the parted ends of a broken wire. And while I have herein shown and described a certain embodiment of my in vention and certain structural features thereof, it is understood that I may vary the structural and will be clamped by a means- carried by the binding post. . 2. A wire terminal lug formed of a blank of sheet metal notched at opposite edges and fold, able transversely of a line passing through said notches into three approximately equal sections, the resulting portions of the blank at one side of 25 the de?ning notches being rolled over and folded down upon the medial section, said medial sec tion having an aperture therethrough, each fold ‘having an aperture therethrough, said apertures being aligned to'form a three-fold binding post ,30 end with sleeves at the b-ights of the folds for. engaging the stripped extremities of two- wire conductors, the said sleeves being held against spreading by a binding post engaged in said ap ertures and the end portions of the blank at I35 the other side of the de?ning notches being rolled and folded down over upon said medial section to form sleeves for engaging the insulation cov ered ends of the wires immediately back‘of the said stripped extremities thereof. _ ~ , r40 3. A terminal lug of sheet metal, one end there- - to practical use, not departing however from the spirit and scope of the invention as de?ned in the of comprising three superimposed folds of metal, each fold having an aperture therethrough, said apertures being aligned to engage a binding post, there being a pair of relatively small sleeves pro :45 vided at the bights of the folds for engaging the stripped extremities of wires, and held against appended claims. spreading, by the engaged binding post and back features of the invention so as best to adapt same I claim: 7 ' 1. In a device of the kind described, a blank ' of conductive material dimensioned for demark; ing into three substantially parallel sections adapted for folding together; upon the central section to form a terminal lug, the blank being notched at opposite edges substantially half thru of said pair of sleeves a pair of integrally con nected, laterally spaced and relatively large 50 sleeves longitudinally aligned with the aforesaid smaller sleeves, for engaging the insulation cov ered portions of the wires immediately back of the stripped extremities thereof. MARVIN B. NIEMAN.