US1627447A - Combination terminal - Google Patents

Description

m n l m m Em HE CT UN m in I m 0 c n 9 l 3 v. M

Filed July 23, 1924 INVENTUR Jhn, Jmwcker.

4 TTORIIEYS I ill Patented May 3, 1927.

PATENT OFFICE.

JOHN J. MUCHER, 0F BROOKLYN, NEW YORK.

COMBINATION TERMINAL.

Application filed July 23, 1924. Serial No. 727,812.

This invention relates to terminals for electrical apparatus and particularly to an improved combination terminal for electrodes of electric apparatus and has for an object to provide an improved construction and arrangement whereby a spring terminal may be readily mounted on a carbon stick and held firmly in operative position.

Another object of the invention is to provide a combined U-shaped spring terminal and a cap.

In the accompanying drawing- Figure 1 is a side view of the upper part of the carbon electrode of a battery with a combination terminal embodying the invention applied thereto.

Figure 2 is a top view of the structure shown in Figure 1.

Figure 3 is a sectional view through the terminal shown in Figure 2, the same being approximately on line 3-3 of this figure.

Figure 4 is a sectional view through Figure 2, approximately on line 44.

Figure 5 is a perspective view of the cap shown in Figure 1.

Figure 6 is a front edge view of a modified structure to that shown in Figure 1,

Figure 7 is a sectional view through Figure 6, approximately on line 7-7.

Referring to the accompanying drawin by numerals, 1 indicates a carbon stick use as one of the electrodes in an electric cell of the variety commonly known as dry cells. Heretofore, difierent means have been provided for connecting a terminal for receiving the wire to this form of electrode. In the present invention, which is formed with a depending annular flange 3 formed of such a size as to snugly I fit the upper end of the carbon 1. The cap 2 is made of thin metal and the flange 3 is, therefore, somewhat resilient whereby it can be forced with some considerable pressure over the end of the carbon 1 and be readily held in place by friction. Mounted on this cap is a terminal clamp 4 which is clamped or riveted in position and which acts as means for receiving the wire to be connected with the terminal or electrode 1.

As shown in Figure 5, the cap 2 is provided with pressed up tongues 5 and 6 and a pressed up annular spur or eyelet 7. The

a cap 2 is provided clamping action not only produces a good electrical connection but also produces a good mechanical connection of the two parts. The clamp 4 is provided with a clamping section 10 having an aperture 11 through which the wire receiving hook 12 is adapted to project when the end 13 is pressed downwardly. When this occurs, the wire may be inserted in the usual manner and the clamping section 10 allowed to swing back so as to press the wire against the hook 12 to make a good connection.

In Figures 6 and 7 a slightly modified construction is shown wherein the cap 2 and the clamp 4 are made of one piece and when this happens the flange 3 is open at 14 which permits the flange to be readily bent inwardly whenever desired to permit a greater pressure against the terminal carbon 1. This is of advantage where the carbons are slightly off size as the flange may be moved to accommodate either a larger or smaller flange and to produce a good gripping action there-against. This arrangement also reduces the amount of metal necessary and also the work of forming the tongues 5 and 6 and the rivets 7.

What I claim is:

A terminal for the carbon electrode of dry cells comprising a cap having two spaced and oppositely arranged elongated struck up tongues and a struck up eyelet at one end of the tongues and a wire clamping terminal member having a base provided at one end with an opening and arranged between the tongues of the cap, the tongues being bent down upon and into firm engagement with the base of said member and the eyelet passed through the opening of said base and upset.

JOHN J. MUOHER.

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