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.

Patents

  1. Advanced Patent Search
Publication numberUS2532406 A
Publication typeGrant
Publication dateDec 5, 1950
Filing dateMar 23, 1948
Priority dateMar 23, 1948
Publication numberUS 2532406 A, US 2532406A, US-A-2532406, US2532406 A, US2532406A
InventorsJernigan William B
Original AssigneeJernigan William B
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Neon tube and electrode holder
US 2532406 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

D ec. 5, 1950 w. B. 4.NEFNNIGAN NEoN TUBE AND ELEcTRoDE HOLDER Filed March 23, 1948 IN V EN TOR. M//'// /0/77 'dern/gdr;

Patented Dec. 5, 1959 UNITED STATES PATENT naar OFFICE 4 Claims.

This invention relates to a manual gripping and handling tool for manipulating glass tubes and the like, and particularly to a manual neon tube and electrode holder for handling the latter under heat without burning the hands.

The main object of the invention is to provide a manual tube and electrode holder by which a workman is enabled to grip a. neon tube or tubulated electrode for exposing the tube or electrode to heating and fusing operations in convenient manner.

Another object is to provide a holding tool of the character indicated which serves for handling various sizes of tubes and electrodes.

A further object is to have such a holding tool by whichit is possible to hold tubes and electrodes longitudinally or transversely at will, as may be required due to special equipment thereon.

It is also an object to facilitate working with heated tubes and the like and lower the cost of manufacturing neon signs and ornamental structures made of glass tubing.

Other objects and advantages will appear in further detail as the specification proceeds.

In order to disclose comprehensively the features of the invention, the latter is illustrated on the accompanying drawing forming part hereof, and in which:

Figure l is a side elevation of a neon tube and electrode holder embodying the invention in a practical form, the holder being shown in open condition ready for use;

Figure 2 is another side elevation of the same holder when gripping a tubulated electrode in longitudinal position;

Figurer 3 is a plan view of the device as seen from the top in Figure 2;

Figure 4 is a transverse section taken on the line 4 4 of Figure 2.

In the four views, the same reference numerals indi-cate the. same parts,

In shops making neon and fluorescent tube signs and ornamental tubular structures of various types, glass tubing is cut and heated to fuse and bend the tubing in various ways and to fuse in tubulated electrodes into the ends of the tubes. Many expedients have been resorted to from time to time for holding and handling such tubes and electrodes, and each shop has its own makeshifts for the purpose, but nothing useful appears to have been universally adopted, and thus practice in this regard is still not uniform, or any too satisfactory. O-n the other hand, it is quite feasible to have convenient means for freely handling glass tub-ing and electrodes, even when close to the flame and considerably heated thereby, and

fmanipulating such parts when bending and/or form of a pair of 4'clamping tongs, is generally' indicated at 5 and mainly consists of a pair of fusing the same, as will be immediately set forth.

Hence, in the practice of my invention, and referring now again to the accompanying drawing, the holding tool, substantially made in the transversely-arcuate or semi-tubular, elongated tong members E and 1 which are integrally joined at their rear portions by a resilient integral loop 8, while a clamping ring 9 is slidable along the a shorter radius. The result is that the lower widerl jaw readily ts a tubulated electrode generally indicated at l2, while the upper jaw will Ybe centered on the same electrode l 2, but will actually t a neon tube of smaller diameter than said electrode.

However, not all manipulations are conveniently performed with a tube projecting directly forward from the holder, as shown in Figures 2 and 3. Instead, certain handling of the tube members is best performed when the tube or the like is transversely disposed, as indicated at i3 in Figure 3, and in order to equip the holder for holding the tube in such transverse position in f addition to the capacity thereof, as already described, the lower jaw lll of member B is intermediately recessed at I4, I 4 in cheeks l5, E5 at the sides thereof to provide seats for accommodating the tubes or electrodes in such transverse positions. The upper jaw l I need not be changed or modified for such gripping of the tubes, as the recessed cheeks of the lower jaw suflice to determine such holding position and jaw l I then servm ing to clamp the tube involved in place. When the jaws are tted upon a tube or electrode, drawing up the ring 9 toward the jaws will set the latter to hold until it is deliberately released by drawing it down toward the other ends of the tong members so as to separate the jaws.

Of course, if desired, the recessed cheek porf tions of the lower jaw may be made separately as plates which are bent and applied by riveting, brazing or welding the same into the lower jaw, but it is preferred to have the jaws and the-2.2n appurtenances integrally formed of sheet metal substantially as shown and already described.

Manifestly, variations may be resorted to and Each jaw is formed arcuately about a different radius, the rst jaw l@ l about a greater radius and the other jaw i l aboutparts and features may be modified or used with out others within the scope of the appended claims.

Having now fully described my invention, l claim:

1. A holder for cylindrical neon tubes or the like, said holder comprising a pair of longitudinally elongated coeXtensive jaWS havingv facing concavities ofsemi-circnlar cross section extending therealong, spring means connected to and between the rear ends of said jaws and normally7 spreading said jaws, the concavity of one of saidV jaws being suiiiciently small indiameter tont the smallest diameter tube or the like to be held and the concavity of the other jawbeinglarger in diameter than the concavityofsaidA one jaw and suiiciently large in diameter to t the largest diameter tube to be held, and means embracing. said jaws and slidable forwardly therealong to contract saidja-ws tofhold a neontubeor lthe like lengthwise therebetween with sa-id concavitiesengagingdia'metrically opposite sides of the tube' or the like..

2;, A- holder for cylindricalY neontubes or the like, said holder comprising a pair of longitudinally elongated ceextensive jaws, having facing concayities of semi-circular cross section .extending.thenealong,y spring means `connected to and beta/:eenv the rear ends'of said jaws and normallyI spreading said: jaws, .the concavity of. `one of; said jaws-beingsnciently small in diameter tont thesmallest diameter tube or the like to beheld and'y the `concavity of the other jaw being lar-ge;I in diameter than theconcavity. of said one andfsuliciently large in diameter to iitthe` larg,- estdiameter tube tobeheld, andmeansembracF said jawsand slidable, forwardly therealo f tocontract saidja-ws to hold `a neon tube or, t f like` lengthwisev therebetween with said concavitiesrengaging-v diametrically oppositesides of the tube orA the; like,r a forward end portion ofsaid other jaw having extensions on itslongitudinal edges continueuswith opposite sides of its conn cavity providing circumferentially extending cheeksreaching laterally beyond the remainder of the-longitudinal edges; of said-other jaw in the direction of said one jaw, said cheeks being formed in their outer edges with rounded notches to receive a neon tube or the like crosswise of the jaws with the said one jaw holding the tube in the notches when the jaws are contracted.

3. A holder for neon tubes or the like, comprising a pair of longitudinally elongated coextensive handles, spring means connecting said handles at their Vrear ends and normally spreading said han dies into divergent relation, one of said handles having a semi-tubular jaw on its forward end of a diameter sufficiently small to t the smallest diameter tube; to', be held lengthwise, the other handle having a semi-tubular jaw larger in diameter -thanrandi-facing the iirst mentioned jaw, the secand -mentionedjaw being suiciently large in diameter to iit the largest diameter tube to be heldlengthwise, and means for holding said jaws compressed in opposite sides of a tube positioned lengthwise therebetween.

4,. A holder Vfor, neon tubes or the like comprisingapair of longitudinally. elongated (zo-extensive;

handles, spring means connecting the rear ends of said handles and normally positioning said handles in. spread relation, one of said handles having a semi-tubular -j aw on its forward end with the concavitythereof facing the other-jaw, said semi-tubular jaw terminating Vat its edges in cheeks-reaching laterally beyond .said one jaw and on opposite sides of the other jaw, the outer'edges of saidcheeks being-formed with notches to receive 1a tube crosswise of said handles and in which the tube is clamped by the other handle when the handles are contracted, and means operatingbetween saidihandles for holding said handles in contracted relation,

B. JERNlGAN.

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

UNITED STATES PATENTS Number Name Date 832,317- I-linds Oct. 2, 1906 993,720 Schneider Mayy 30, 1911

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US832317 *Dec 22, 1906Oct 2, 1906Gustavus A TowleLock-grip grasping-tongs.
US993720 *May 23, 1910May 30, 1911Adolph Phillip SchneiderBone-fork.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2768856 *Aug 10, 1953Oct 30, 1956Wright Helen LSpring tongs
US4452477 *Aug 8, 1983Jun 5, 1984Hardy Duane SManipulatable implement
US6056338 *Nov 4, 1999May 2, 2000Browne & Co., Ltd.Lockable kitchen tong
US6494517 *Aug 17, 2001Dec 17, 2002Madeline G. DurantEating implement
US8727408Mar 1, 2013May 20, 2014John O. RuidTongs including tapered fingers
US20040245790 *Jun 4, 2003Dec 9, 2004William ThomasJanitor tweezers
EP1616527A3 *Jun 30, 2005Apr 19, 2006Jeffrey I. LasnerImproved handles and shafts for manually adjustable scissors and forceps
EP2022415A1Aug 7, 2007Feb 11, 2009Jeffrey I. LasnerPressure limiting forceps
Classifications
U.S. Classification294/99.2, 294/33
International ClassificationH01J9/32
Cooperative ClassificationH01J9/32
European ClassificationH01J9/32