US 2161266 A
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Description (OCR text may contain errors)
D. M. WEIGER 2,161,266
WIRE TERMINAL Filed June 18, 1938 INVENTOR 1 .DorzaZdMaZi Wzyer Patented June 6, 1939 UNITED STATES I 2,181,288 wmn TERMINAL Donald Matt Weiger, Seattle, Wasln, assignor to 1 The Trumbull Electric Manufacturing Company, Plainvllle, Gonnl, a corporation of Connecticut Application June is. 1938, Serial N0. 214,464
This invention relates particularly to an improved wire terminal construction.
It is desired that a conductor wire to be connected to the shank of a screw orbinding post be looped around the shank or post in order to retain the same securely in position on the shank and to provide a positive contact.
A special object of my invention is to provide a wire looping device which is adapted to be so associated with a wire fastening member such as a slotted screw that the same movement of the tool for tightening the screw also simultaneously 4 loops and clamps the wire securely.
Another object is to provide a wire looping 5 device that is simple-in construction and reliable in operation.
Another object is to provide such a wire looping device that may be used with the ordinary commercial forms of binding posts.
In carrying out my invention, I provide a washer member positioned between the seat of a terminal and the slotted head 0! a fastening screw. A lug is formed on the periphery of the washer and extends adjacent the periphery of the screw head so that a tool inserted into the slot in the screw head is adapted to engage the lug and turn the same along with the screw head and so that the free end or a wire beneath the screw head will be engaged by and carried around with the lug and formed into a loop.
In the drawing,
Figure 1 is a plan view of a fuse unit embodying my improved wire terminal construction.
Figure 2 is an end view thereof.
85 Figure 3 is a sectional view showing the improved wire terminal partly in section and partly in elevation.
Figure 4 is a detail view of my improved wire terminal showing a conductor wire, looping washer and tool in initial wire looping position.
Figure 5 is a detail view showing the wire partly looped.
Figure 6 is a spread perspective view of my improved wire terminal In thedrawing, Ihave shown a commercial form of fuse unit with a body formed oi! insulating material and having an ordinary terminal member 1 fastened to one of the contacts of a socket shell as is customary. Seated on the tree end of the terminal I is a washer member I and a screw 9. The terminal I has a screw threaded opening in and the threaded shank ll of the Y screw passes freely through the opening i2 of the washer. Terminal 1 is preferably formed with an upturned lug l3. The washer 8 has a lug ll which extends slightly outward of the periphery of the washer and at right angles to the plane of the body of the washer to engage the end Ii 0! the conductor wire or wires. When washer l is seated on terminal 1, lug is positioned sumciently remote from the shank and head of the screw 9 to permit turning thereof but sufliciently close to the head of the screw to be in the path of the turning movement of the tip edge of a screw driver or tool it inserted in the slot ll of the 1 screw so thata turning movement will be imparted to said washer and its lug M.
The bared end of a conductor wire l5 to be fastenedis placed between the head of the screw 9 and the body of washer 8 to the right of lug l5 ll of washer 8 as viewed in Fig. 4. The tip edge oi the tool it is placed' in the slotll of screw head 9 with its opposite edge extending beyond the periphery of the head of the screw so as to engage lug H of washer 8 during its turning 20 movement and carry the 'lug around. In its turning movement lug ll engages the free end of conductor wire l5 and bends it around the shank II of the screw as shown in Fig. 5. Further turning of the tool will cause the lug M to form 25 a loop as shown in Figs. 1 and 2, the lug II on terminal I and the shank of the screw serving to cramp the wire therebetween to prevent fur-- ther lengthwise movement or the wire. As soon as the loop in the wirehas been formed, the screw 30 driver may be released from its engagement with the lug I on washer 8 and then manipulated to turn the screw 9 to secure the wire in position.
It will be understood that the turning of the screw clamps the looped wire positively between 5 the screw head and body or the washer 8.
It will also be understood that the improved washer for looping wire may be used on any sort of a terminal having a single wire retaining lug or having any kind of an adjacent shoulder 40 which may function as a wire-retaining lug.
The screw may be staked at its lower end to prevent its loss by dropping out- I claim:
1. A binding post construction embodying a 46 terminal member having a screw threaded seat,
a screw member having a slotted head and a threaded shank rotatable in the threaded slot of the terminal member, and a bending member freely rotatable on said shank and having a 50 clamping portion adjacent the threaded seatand having an upstanding projection extending alongside of the head of the screw member beyond the plane of the slot therein and adapted to be engaged by the edge oi the blade of a screw driver when the screw driver tip is engaged in the slot of the head of the screw member so that the bending member can be rotated by the screw driver and thereby bend the tip of a wire inserted between the clamping portion' of the bending member and the head of the screw member.
2. A binding post construction including a terminal member having a screw threaded opening, a screw having a slotted head portion and a shank portion in said opening, a washer member rotatably mounted on said shank between said,
head portion and terminal, and a lug on said washer extending outwardly beyond the slot in the head in the path of movement of a turning tool in the slotof said head portion whereby said movement is imparted to said lug and whereby the free end of a wire placed between the shank of the screw and the lug is carried therearound.
3. A binding post construction including a terminal member having a screw threaded opening,
of the screw and the lug is carried therearound, and 9. lug on said terminal adapted to coact with said screw head portion for binding the wire therebetween.
4. A binding post construction including a ter- -minal member having a seat portion with a threaded opening, a washer freely rotatable on said seat portion, a screw member with a slotted head portion and a shank portion movable through the threaded opening of said seat portion and a lug on the periphery of said washer extending beyond the slot in the head and positioned sufliciently close to the head of the screw to be engaged by a tool used to turn said screw head whereby said lug is adapted to be carried around with said screw head and carry the free endof a wire placed between said lug and shank of the screw around with it to form a loop in said wire, I v
5. In a binding post construction, a terminal having a screw threaded opening, a screw hav. ing a slotted head and a shank portion movable in said opening, a washer member freely rotatable on said shank between said head and terminal, and a lug on said washer extending beyond the slot in the head and positioned in the path of movement of a tool to be engaged in the slot of said head for looping a wire around said shank. I
DONALD MA'I'I WEIGER.