US1312318A - Jacob i - Google Patents

Description

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l. l. GLICKERMAN. SEALING STRIP SOLDEHING VGUIDE.

APPLjcATIoN msn JuLvla. 191m Patented Aug'.` 5, 1919..

JACOB I. GIJICKERMAN, OF CHICAGO, ILLINOIS.

Leraars.,

SEALING-STRIP-SOLDERING.. GUIDE.

Specification of Letters Patent. Patented Aug. 5, 1919.

Application filed` July 18, 1918. Serial No. 245,579;

To all 'whom it may] concern.' j

Be it known that I, JACOB I. GLICKERMAN, citizen of the United States, residing at Chicago, in the county of Cook andV State` of Illinois, have invented certain new` and useful Improvements in Sealing-Stripoldering Guides; and I do hereby declare thefollowing to be a full, clear, and eXact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same. t

`My invention relates to appliances for facilitating and expediting the attaching of metal bands or banding strips to metal objects, its general object being to provide simple and easily manipulated means for holding both the object and the banding or banding strip in proper relation to each other while joining them bysoldering, brazing or welding. c t

With certain kinds of shells, such as the so-called anti-aircraft shells, it is customary to protect the fuse of theshell from moisture and from foreign matter by employing a metal cap whichis placed over the tip ofthe shell and which is connected to the casing of the shell by a manually detachable strip or band which forms a hermetic seal between this cap and the casing of the shell.` For this purpose, it is customary to use a metal strip somewhat longer than the circumference of the adjacent annular portions of the cap and the casing, thereby affording a projecting tip which may be graspedbetween. the fingers when the strip is to he ripped off, so as to detach the cover.` In manufacturing the parts, this strip is commonly attachedl first to the mouth of the cap by means of soft solder, and is afterward soldered to `the corresponding part of the casing of the shell. In attaching such strips tothe caps, it is important that the strip should beheld closely against the proper part of the cover during the soldering operation, andthat` it should occupy a substantially cylindrical position, so as to'aiford the desiredclose apf preach to the mouth ofA the shell `casing when it is aflixed to the latter. In practice,

this has been found diiiicult owing to the resiliency of the metal and theconsequent tendency ofthe strip to uncoill or spring away from the portion of the cover to which it is to be aliiXed, so that the attaching of these strips to the caps has proven to be quite a slow and expensive operation.

lin one ci? its ini-portant applications, my

invention aims to providesimple means for holding` such a cover' in convenient working position, for rapidly disposing the banding strip in the desired position with respect to such a cover,` for holding' the two elements in this desired relation `while they are being soldered or otherwise aliiXed to each other, and for readily permitting` the withdrawal of the resulting composite article. Still further objects will appear from the following specification and from the accompanying drawings in "which- Figure l is a fragmentaryelevation of the upper end of a shell having a fuse-protecting cap fastened to it after the manner for which the device of my invention is intended! Fig. 2 is a perspective view 0f the cover of theshell of Figi, with the metal sealing strip attached thereto and ready for soldering `the latter tothe neck of the shell casing, l Fig. 3 is a perspectiveview showingl the holder of my invention as slippedupon a metal fuse-protecting coveirprior to the in sertion` of the metal'banding` strip.

Fig. 4 is an end view of the collar or holder of my invention as it appears when .both the fuse cover and the metal strip are in positiontready for `being soldered to each other.

Fig. 5 is an enlarged and fragmentary section taken longitudinally through the partsofFig. 4 showingthe manner in which an edge portion of the sealing strip is positioned between the contracted neclr of the coverand the contracted portion ofthe bore of the collar. j

Fig. 6 is afragmentary plan view of the metal sealing strip shown as attachedfto the cover in Fig. 2; H

While my invention in its gene-ral objects may obviously beapplied to other purposes besidesthe specific one in connection with theoneflf am illustrating-and de. cribing, its

principles may be seen from s1 lh a particular example.` In this case, the problem so expeditiously solved by means of my invention is thatof securinga metal strip l in the form of a substantially cylindrical l bandaround the contracted neck 2 of a shell cover 3, with the resulting band disposed in substantially cylindrical formation", so that it can readily e soldered to the cylindrical neck of the casing` 4lof a shell. For use` in this connection, invention desirably" Cri consists of a collar 5, preferably made of metal and having a bore having two dif ferent diameters connected b y an annular shoulder. The larger bore is of such diameter as to snugly lit the portion 6 of the cap which is above the contracted neck Q of the cap, so that this portion will be held by friction in `the collar when inserted as shown in Fig. 5. The other end of the bore of the collar is contracted as shown in Fig. 5 to a diameter somewhat greater than the outside diameter of the neck 2 of the cover, the V'difference in diameter being slightly more than twice the thickness of the banding Vstrip l which is to be fastened to the cover.' This strip l desirably has one end beveled as shown in the drawings, so as to vafford a sharp end which may be easily inserted between the portion of the neck 2 and the 'adjacent portion of the collar 5, after which the strip or band may be inserted around the remainder of the periphery of the neck 2, the surplus length (including the narrow tip 7 of the strip) being inserted between the pointed end portion of the strip and the adjacent bore of the collar. VOwing to the natural resiliency of the metal, the strip when thus Vdisposed will tend to .spring loutwardly against the bore of the collar, thus holding itself in place by friction even if variations in the size of the metal parts should be such that the strip is not vtightly' clamped between the neck of the cover and the collar. In either case, the strip will thus be held in a substantially cylindrical formation and with one edge Y portion overlapping the neck EZ of the cover,

L sothat the strip can readily be secured to this cover by running a soldering iron along the end ofthe neck of the cover. O.r,'the strip may be secured Vto the cover when in this position by any other'suitable method, as for instance'by brazing or by electric welding.

When the two metal parts have thus been secured to each other, the collar can easily be removed-,by merely sliding it joif, thus leavingthemetal band securely attached to kthe cover as shown in Fig. 2. `By suitably proportioning the diameter ofthe larger end ofthe bore of the collar, I can cause the Y narrow end of the metal strip tofb'e clamped Y so tightly between the collar and the other y Gopies'of this patent may be obtained for -end of the metal strip, that the solder 'applied from the interior of the band will not enter materially between the overlapping end portions of the strip. Consequently, the

narrow tip 7 of the strip will be left free to spring outward or tangential of this band when the collar is removed, thereby affording a ready finger-hold for the manual dctaching of the strip later on.

, In practice, I have found that even an unskilled helper can soon learn to slip both the cover and the metal strip into their proper positions by means of the holder of my invention with more certainty and in a very much shorter time than has been possible by the methods heretofore in use. Moreover, when thus assembled, the parts lare held in proper position, so that there is no danger of their gaping or springing apart, or otherwise shifting their relative position during the soldering. Consequently, I not only secure a decided saving in time, but also reduce the spoilage. Moreover, since my holder involves no screws or other y movable parts, there is nothing about it to get out of order, so that it is not only cheaply manufactured, but also exceedingly durable. Likewise, by slightly varying the diameters of the two portions of the bore I can readily adapt the holder of my invention t0 different thicknesses of metal and to different sizes of the neck or annular portion to which the metal strip or band is to be attached.

However, while I have described my invention as used in connection with shell covers, and as embodying a colla-r of substantially cylindrical exterior, I do not wish to be limited to this particular use of my invention, nor to the particular shape of holder or other details of the construction and arrangement hereby shown or described, Vit being obvious that the same might be varied in many ways without departing from the spirit of the appended claim.

JACOB I. GLICKERMAN.

ive cents each, by addressing the Commissioner of Patents, Washington, D. C.

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