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Publication numberUS2474463 A
Publication typeGrant
Publication dateJun 28, 1949
Filing dateJan 13, 1944
Priority dateJan 13, 1944
Publication numberUS 2474463 A, US 2474463A, US-A-2474463, US2474463 A, US2474463A
InventorsEllis Burrell
Original AssigneeEllis Burrell
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Wiring pencil
US 2474463 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

June28, 1949. E. BURRELL 2,474,463


WIRING PENCIL Ellis Burrell, Cook County, Ill., assignor to the United States of America as represented by the Secretary of the Navy Application January 13, 1944, Serial No. 518,198

3 Claims. 1

This invention relates generally to wire feeding devices and more particularly to an improved wiring pencil which is adapted for use for wiring the unshorter of an electrical fuze.

Up to the present time a great deal of difficulty has been experienced and time has been lost in wiring the unshorter blocks used with electrically operated explosive projectiles. This has been due to the fact that the unshorting wire is usually very small in diameter, usually .005", and the terminals for said wire have been mounted in a cavity or recess.

One of the objects of the invention, therefore, is to provide a wiring pencil by the use of which it will be possible to mount bridging or unshorting wires in restricted spaces.

Another object of the invention is to provide a device of this character which may be easily constructed and which will be efficient in opera tion.

A further object of the invention is to provide a wiring pencil which is of such size that it may be conveniently held in the hand.

Still another object of the invention is to pro vide a wiring device of this character wherein means is employed for supporting a roll of wire and wherein means is also employed for retaining the Wire under proper tension so that unnecessary unreeling thereof will not take place.

And another object is to provide a wiring pencil by the use of which it will be possible to set an unshorter wire at the proper tension so that it will neither break prematurely nor fail to break because of too much slack.

Further and more specific objects will become apparent in the course of the following description, accompanied by the drawing, in which:

Fig. 1 is a perspective view of the wiring pencil of this invention,

Fig. 2 shows a longitudinal section of the Wiring pencil,

Fig. 3 shows a transverse section taken on line 3-3 of Fig. 2,

Fig. 4 is a perspective view illustrating the use of the device, and

Fig. 5 is a perspective view of a modification.

In the drawings, the numeral I indicates generally the barrel of this improved wiring pencil. The barrel may be made of a hard fibre or other suitable material and is of such size that it will conveniently fit in the hand. The barrel I is formed with an axial bore 2 which extends throughout its length, said bore being enlarged near one end to define a counterbore 3 which forms a shoulder 4. At its opposite end, the

outer surface of the barrel is reduced to define a neck 5. Normally fitted about the neck 5 is a ferrule ii. This ferrule 5 has its outer surface lying flush with the outer surface of the barrel but is tapered toward its forward end. Also, said ferrule 6 is formed with a counterbore 'l which receives the neck 5, and communicating between the counterbore l and the forward portion of the ferrule 6 is a bore 8 which is internally threaded at 9. Obviously, ferrule 5 could be integral with barrel I.

As seen in Fig. 2, a wire feed nipple it is mounted in the free end of the ferrule 5. This wire feed nipple lil includes a reduced threaded shank H which is screwed in the threads 51 of the ferrule 55. The nipple It is tapered towards its forward end and is formed with a feed opening l2 which extends axially throughout its length.

Fitted in the counterbore 3 at the rear end of the barrel l is a guide tube l3, enlarged near its rear end to define a flange M. Tightly fitted on the rear end portion of the tube i3 is a yoke l5 which includes arms it and I! and a connecting hub I8, which hub is counterbored at IE] to receive the flange 14. The rear end portion of the tube is projects through an axial opening 20 in the hub [8. Of course, tube 13 could be integral with either barrel l or hub 18.

The arms l6 and H of the yoke l5 are formed with opposed projections which define trunnions 2!. Normally positioned between the arms H5 and I1 and rotatable on the trunnions 2| is a spool 22, the side walls of which are provided with radial grooves 23 which extend from the axis to the rims of the Walls. The grooves 23 will function to guide the spool into operative position between the arms IE and H of the yoke IS.

The device is loaded by placing a spool of wire 22 between the arms l6 and H of the yoke and training the free end of the Wire through the tube l3, the bore 2 of the barrel l, the bore 8 of the ferrule 6, and the feed opening l2 of nipple Hi, to project from the forward end thereof.

In operation let it be assumed that it is desired to wire an unshorter of the type used with electrically detonated projectiles. Such an unshorter is shown generally in Fig. 4 and includes spaced terminals 24 and 25. The free end of the wire, shown at 26, is either held between the thumb and forefinger of one hand or is held down on the body of the unshorter at a point near one of the terminals as 24. The pencil is then moved by the other hand for winding the wire about the terminal 24, extending the wire between said terminals 24 and 25, and then winding the wire about the terminal 25. The wire may then be cut, by any suitable tool, and the portions there-- of Wound about the terminals may be held in place by a drop of solder or in some other suitable man-- ner. A wire cutting tool 21 is hown in as extending through a slot 2 3 in ferrule of the Wiring pencil, and is retractable Within a groove of the barrel I.

It will be seen that, by the use of this improved wiring pencil, it will be possible to do wiring jobs in restricted places. In this connection, it should be understood that this device may be used for any Wiring which must be carried out in a space that is not easily accessible.

It is desired to call particular attention to the fact that the guide tube I3 forming part of the barrel and the restricted nipple ll] forming the feed point will serve to retain the wire under sufficient tension to prevent it from unreeling freely. Due to the resiliency of the wire and the comparatively long bore of the barrel, the wire by frictionally contacting with the inner wall of the barrel, is subject to a braking action, and in addition the frictional contact of the resilient wire with the restricted bore of the nipple also aids in this braking action. Also, the arms It and ll of the yoke l5 With the trunnions thereon exert enough pressure on the spool 22 to prevent its free rotation and to provide proper tension on the wire while being used. As pointed out in the objects, the pencil will enable the tensioning of an unshortened Wire in such a manner that it will neither break prematurely nor fail to break because of too much slack.

Other modifications and changes in the number and arrangement of the parts may be made by those skilled in the art without departing from the nature of the invention, Within the scope of what is hereinafter claimed.

The invention described herein may be manufactured and used by or for the Government of the United States of America for governmental purposes Without the payment of any royalties thereon or therefor.

I claim:

1. A wiring pencil including an open-end bar- 4 rel having a comparatively long, straight inner bore and a nipple having an axially alined restricted bore, a wire-supporting spool journalecl at the rear end of the barrel, and means mounted on the nipple adapted to engage and sever a portion of wire.

2. A wiring pencil including an open end barrel having a comparatively long, straight inner bore, said barrel having a front feed nipple including a restricted inner bore axially alined with the barrel-bore, a yoke mounted at the rear open end of the barrel, opposed trunnions on adjoining faces of the yoke, and a Wire-supporting spool having a pair of radially extending grooves terminating in central axially arranged bearings for the trunnions.

3. As a new article of manufacture, a wiring tool including a barrel, a yoke mounted at the rear end of the barrel, a Wire-supporting spool carried by the yoke, a ferrule carried at the frontend of the barrel, an elongated feed point carried by the ferrule and a resilient wire trained about the spool and passing through the barrel and irictionally feedin through the feed point.


REFERENCES CITED The following referenlces are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 31,960 Forest Apr. 9, 1861 126,199 Gibbs Apr. 30, 1872 919,138 Drake et al Apr. 20, 1909 1,021,112 Reiche Mar. 26, 1912 1,427,985 Vassilli Sept. 5, 1922 1,809,607 Swigart June 9, 1931 2,220,878 Harvey Nov. 12, 1940 2,293,343 Jacobs Aug. 18, 1942 2,338,353 Perkins Jan. 4, 1944 FOREIGN PATENTS Number Country Date 691,527 France July 15, 1930

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US31960 *Apr 9, 1861 Thread-winding guide
US126199 *Apr 30, 1872 Improvement in spool-holders
US919138 *Mar 16, 1909Apr 20, 1909Clarence A DrakeSurgical needle.
US1021112 *Aug 7, 1909Mar 26, 1912Hermann ReichePencil.
US1427985 *Apr 2, 1921Sep 5, 1922Anthony VasselliMagazine pencil
US1809607 *Aug 16, 1926Jun 9, 1931Swigart Philip JDevice for holding and applying twine
US2220878 *Aug 12, 1938Nov 12, 1940Starr Allyn HarveyFish lure winder
US2293343 *Nov 15, 1939Aug 18, 1942Jacobs Doyle PMechanical pencil
US2338353 *May 27, 1943Jan 4, 1944Perkins Walter LBobbin for winding thread on fish lures
FR691527A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2504669 *Sep 21, 1948Apr 18, 1950Collier A ElliottBobbin holder for winding thread on fish flies
US2551135 *Jun 25, 1949May 1, 1951Harold D JusticeCoil winding tool
US2635832 *Jun 14, 1951Apr 21, 1953Richmond George BFly tier's bobbin holder
US2738140 *Mar 12, 1953Mar 13, 1956Thompson Herbert LFly-tying bobbin
US2747246 *Jan 8, 1953May 29, 1956Oldham Jasper MTobacco tying shuttle
US3083595 *Oct 6, 1960Apr 2, 1963Western Electric CoThermo-compression bonding apparatus
US3186262 *Jun 10, 1963Jun 1, 1965Philco CorpWiring device
US3211189 *Aug 6, 1962Oct 12, 1965Int Resistance CoDispenser of wire under tension
US3299913 *Jul 31, 1963Jan 24, 1967Dombrowski Henry GAdjustable tension wire guide
US4197648 *Mar 16, 1978Apr 15, 1980Roswitha AichingerMethod and apparatus for producing a bend of square steel wire
US4418875 *Sep 28, 1981Dec 6, 1983Roadrunner Electronic Products LimitedThreading tool
US6328250 *Mar 26, 1999Dec 11, 2001Nexpress Solutions LlcMethod of mounting corona wire a corona charger housing of an electrophotographic apparatus and an apparatus for mounting corona wires
US7749236 *Apr 6, 2006Jul 6, 2010Karl Storz Gmbh & Co. KgDevice for guiding surgical sewing material to a needle
EP1709909A1 *Apr 5, 2006Oct 11, 2006Karl Storz GmbH & Co. KGDevice for feeding a surgical thread to a needle
U.S. Classification242/129.53, 219/85.14, 140/123, 81/3.6, 219/85.18
International ClassificationF42B3/195, F42B3/00
Cooperative ClassificationF42B3/195
European ClassificationF42B3/195