Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS1188749 A
Publication typeGrant
Publication dateJun 27, 1916
Filing dateFeb 21, 1916
Priority dateFeb 21, 1916
Publication numberUS 1188749 A, US 1188749A, US-A-1188749, US1188749 A, US1188749A
InventorsHarry Frankel
Original AssigneeHarry Frankel
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Electric testing-clip.
US 1188749 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)


1 1 88,749. Patented June 27, 1916.

5] nvewtoz Zacr'g 77%; aka 5,



Application filed February 21, 1916.

To all Whom it may concern Be it known that I. HARRY FRANKEL. a citizen of the United States, and a resident of the city of New York, county and State of New York, have invented a certain new and useful Improvement in Electric Testing-Clips, of which the following is a specification.

My invention relates to improvements in devices for use by linemen and others engaged in electrical testing, and particularly to' a clip for making temporary but quick and positive connections, either directly to a bare conductor or indirectly through the insulation of an insulated conductor, indirect connection being caused by a metal point which is forced through the insulation when the clip is used on an insulated conductor. As this point may .be injured or dulled and may be in the way for bare conductors, it is desirable that means should be provided for removing this point at the option of the person using the clip, and my ,invention. herein disclosed, provides suitable means for permitting the insertion or removal of this point.

For a more particular description of my invention, reference is to be had to the accompanying drawing, forming a part here of, in which Figure 1 is a side elevation showing my improved clip with the point removed. Fig. 2 is a side elevation of my improved clip with the point in place. Fig. 3 is a plan view of the structure shown in Fig. 2. Fig. 4 is a sectional view, taken on the line 44 of Fig. 3, looking in the direction of the arrows. Fig. 5 is a sectional view, taken on the line 5-5 of Fig. 4, looking in the direction of the arrows. Fig. 6 is a perspective view of a point andthe spring clip to which it is attached. Fig. 7 is a perspective view of the part of the clip to which the spring clip is secured.

Throughout the various views of the drawings, similar reference characters designate similar parts.

1 designates an electrical instrument such as a magneto telephone which has binding posts 2 made of metal or similar material, and without insulation so that my improved clip 3 can be placed thereon when the point Specification of Letters Patent.

Patented June 27, 1511 (5.

Serial No. 79.529.

4 is omitted. The clip 3 consists of two jaws 5 and (i hinged together on a common pivot 7. suitable ears 8 and 9 being provided for this purpose, and the jaw 5 has a suitable handle 10 by means of which it may be actu-. ated. The jaw 6 has one end with edges brought together to form. a socket 11- to receive an insulated wire 12 to which the clip is attached. A suitable coil spring 13 of the conventional kind normally tends to keep together the serrated edges 11 of the jaws 5 and (3. These jaws may be made in any suitable form, but are preferably made as shown.

The jaw 5 is perforated at 15 and provided with a number of lugs 16 on both its upper and its lower surface, which lugs form guideways for a spring clip 1.? to which the point 4'is secured by being passed through a perforation and is swaged so as to have a head 18 which fits the perforation 15 and rests snug therein. so that when the spring clip 17 is shoved over the jaw 5, as shown in Figs. 2 and 3, the lugs 16 keep this spring clip from twisting and the perforation 15 and head 18 will hold the clip against movement in the direction of its length, so that at all times tlie point 4 may be properly secured in place.

The spring clip 17 and its point 4 may be readily removed from the jaw 5 to which it is attached by separating'the ends 19, and then shoving the clippart across the jaw 5.

When the point 4 is omitted the device may be used as shown in Fig. 1. and when the point 4 is in place, the device may be used as shown in Figs. 2 and 3.

While I have shown and described one embodiment of my invention, it is obvious that it is not restricted thereto but is broad enough to cover all structures that come within the scope of the annexed claims.

Having thus described my invention, what I claim is:

1. In a device of the class described, a clip with a pair of jaws pivotally connected. :1 spring clip adapted to engage one of said jaws and be secured thereon, and aninsulation piercing point fixed to said spring clip.

2. In a device of the class described, spring pressed jaws and means for pivotally connecting the same together, lugs on one of said jaws, a spring clip adapted to be guided by said lugs and an insulation piercing point secured to said spring clip.

3. In a device of the class described, spring pressed jaws and a pivot connecting the same, one of said jaws being provided with a perforation and guiding lugs, a-

spring clip adapted to be held between said guiding lugs, and an insulation piercing point fixed to said spring clip and provided with a head adapted to engage the perforation in said jaw.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3171709 *Aug 20, 1962Mar 2, 1965Beckman Instruments IncFine wire clamp
US4057313 *Jul 19, 1976Nov 8, 1977Ida PolizzanoTest clip
US5651177 *Dec 26, 1995Jul 29, 1997Globe Products Inc.Stator manufacturing and testing method and apparatus
US6067702 *Mar 14, 1995May 30, 2000Globe Products Inc.Stator manufacturing and testing method and apparatus
WO1995025377A1 *Mar 14, 1995Sep 21, 1995Globe Products IncStator manufacturing and testing method and apparatus
U.S. Classification439/410, 324/72.5
Cooperative ClassificationH01R4/2412