US1035247A - Means for attaching binding-posts to dry batteries. - Google Patents

Description

W. A. SCOTT. MEANS FOR ATTAGHING BINDING POSTS T0 DRY BATTERIES. APPLICATION FILED NOV. 11, 1911.

1,035,247. Patented Aug. 13, 1912 WITNESSES JNVENTOR z 22 MZZZ'QWZA.SC0ZZ Q g W 141107;

COLUMBIA PLANouRAPl-x CO., WASHINGTON, D. c.

UNITED STATES PATENT OFFIQE.

WILLIAM A. SCOTT, 0F TACOMA, WASHINGTON, ASS IGNOR TO NEW ERA MANUFAC- TUBING COMPANY, OF SEATTLE, WASHINGTON, A CORPORATION OF VfASI-IINGTON.

MEANS FOR ATTACHING BINDING-POSTS T0 DRY BATTERIES.

To all whom it may concern:

Be it known that 1, WILLIAM A. Scorr, citizen of the United States, residing at Tacoma, in the county of Pierce and State of lVashington, have invented certain new and useful Improvements in Means for Attaching Binding-Posts to Dry Batteries; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to certain new and useful improvements in means for attaching binding posts to dry batteries, and it has for its object, the provision of a simple, inexpensive and practical binding post of this character, which may be readily and securely attached to the metallic casing of a dry battery in such a way as to insure it against accidental displacement, and in which the terminal wire used in connecting the battery, is always held in contact with the zinc shell of the battery itself.

To these ends, and to such others, as the invention may pertain, the same consists in the novel construction, and peculiar arrangement, combination and adaptation of parts, all as will be very fully hereinafter described, shown in the accompanying draw ings, and then specifically defined in the appended claims.

The invention is clearly illustrated in the accompanying drawings, which with the letters of reference marked thereon form a part of this specification, and in which drawings,

Figure 1 is a vertical section through a binding post and its connections, the same being shown as attached to the edge of a dry battery shell. Fig. 2 is a central vertical section of the post, detached, and Fig. 3 is a top plan view. Fig. 1 is an elevation of the device.

Reference being had to the details of the drawings by letter, A represents my improved form of post, the upper portion 2 of which is cylindrical in cross section, and externally screw threaded as shown at 3 to engage the threads of the nut 4:. The lower portion 5 of the plug is provided with a central vertical slot 6, to receive the upper Specification of Letters Patent.

Application filed November 11, 1911.

Patented Aug. 13,1912.

Serial No. 659,786.

edge of the Zinc shell of the battery to which the device is applied, and at a point intermediate the screw threaded upper portion 2, and the slotted lower portion 5 of the ,plug, a peripherally outwardly extended flange 6, is provided, the said peripheral flange 6 being provided atpoints upon diametrically opposite sides, with slots 9.

It will be noted that the vertical slot 7 provided in the plug for the reception of the zinc shell of the battery extends from the extreme lower end of the plug to a point considerably above the horizontally extended flange 6. From the foregoing description, the construction of the posts, the means of attaching the same to the zinc shell of a dry battery, and the advantages derived therefrom, will be at once readily understood.

In attaching the post, the slot 7 of the post is fitted over the edge of the zinc shell of the battery, and by one or two blows imparted to the upper end of the plug by a hammer, will serve to force the plug downward over the zinc shell inclosed within the slot, and the extreme edge of the said shell will be deflected at points upon opposite sides of the plug, passing through the slots 9 9, the said portions thus deflected being forced to occupy the space within the transverse slots 99, provided in the peripheral flange 6.

The screw threaded nut which is used to clamp the connecting wire between the zinc portions of the battery casing thus held within the slots 99, is screwed down firmly upon the upper end of the post, and the connecting wire is thus held securely in contact with the zinc casing by the nut.

A post constructed in accordance with my invention, will be found to be no more expensive than the soldered post, heretofore in common use. It is found to afford better electrical contact than the soldered post, as, owing to the fact that the terminal wire used in connecting the battery to whatever use it is desired to connect the battery with, is always held in contact with the Zinc shell of the battery itself. It has been found that in the use of the ordinary soldered post, that contact with the zinc of the battery is only obtained through the metal of the post, and that the wire itself never comes in direct contact with the zinc, an objectionable feature because of the fact that whenever the solder gives away, as it frequently does, the electrical resistance thus set up will serve to quickly kill the cell. With a post constructed in accordance with my invention, it will be seen that, should the post at any time become slightly loosened from the case to which it is attached, the extended overlapping lips of Zinc will serve to hold the collar, because a slight tightening of the thumb nut at once serves to perfect the electrical. contact between the wire and the Zinc shell of the battery, and a further effect of the tightening of the nut is that it serves to render the post itself more rigid.

Having thus described my invention, what 1 claim as new and desire to secure by Letters Patent, is:

1. The herein described device for securing binding posts to dry batteries, the same comprising a binding post provided with a vertically disposed slot to engage the Zinc shell of a dry battery, the said slot extending to a point beyond the longitudinal center of the plug, and a peripheral laterally extended flange positioned at apoint below the upper end of the longitudinal slot, the

said flange being provided upon opposite sides, with grooves to receive deflected portions of the zinc battery shell, substantially as shown and described.

2. The combination with the shell of a dry battery, of a bifurcated post, the upper end of which is screw threaded, a peripherally extended flange upon the post, disposed. at a point below the upper end of the bifurcation, the said flange being provided upon its opposite sides with slots as described to receive deflected portions of the edge of the battery casing, and a nut adapted to engage the screw threaded upper end of the post, and to clamp the connecting wire to the deflected ends of the battery casing, within the slots in the flange, substantially as shown and described and for the purpose specified.

In testimony whereof I hereunto atlix my signature in the presence of two witnesses.

XVILLIAM A. SCOTT.

Witnesses MILDRED L. ArrLnoArn, F. S. DE Nnu'r.

Gopies of this patent may be obtained for five cents each. by addressing the Commissioner of Patents, Washington, D. C.

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