US1780051A - Rod or shaft packing - Google Patents

Description

Oct. 28, 1930. S, WALKER ROD OR SHAFT PACKING Filed Aug. 15, 1927 2 Sheets-Sheet l 4 wbb/woo Oct. 28, 1930.

ROD OR SHAFT PACKING Filed Aug. 15, 1927 2 Sheets-Sheet 2 H. s. WALKER 1,780,051

Patented `Oct. 28, 1930 UNITED. STATI-:Vs PATENT oFricE y HERBERT S. WALKER, OF MAMARONECK, NEW YORK, ASSIGNOR TOWALKER. 8c FORBES, INC., OF MAMARONECK, NEW YORK, A CORPORATION OF'NEW YORK` non `on SHAFTPACKING Application led August15, 1927. Serial No. 213,047.

The invention aims to provide a new and y improved packing for rods and shafts, enibodying folded soft metal strips, yet of such construction that it is sufficiently flexible to be Wrapped around a rod or shaft of one diameter or another, the packing' being of such nature that it may be effectively compressed and forced into tight contact with the rod or shaft by tightening of the usual gland yof the stuning box or the like with which the packing'k is used.

l/Vith the foregoing Vin View, the invention v resides in the novel subject matter hereinafter described and claimed, the description being supplemented ,by the accompanying drawings. f

Fig. 1 is a perspective view of a packing constructed in accordance with my invention. Fig. 2 is a sectional perspective View sliowing the packing ofY F ig. 1 secured in a channeLShaped shell'of fabric, asbestos or the like. Figs. 3 and l are sectional views on the correspondingly numbered lines of Fig. 1.

Fig. 5 is a perspective view showing a different form of packing in which four folded metal strips are used instead of two as in the first form of construction.

Fig. 6 is an'endV elevation partly broken away showing the relation of the numerous reaches of the metal stripsk in the form of con-V struction shown in Fig. 5.

Fig. 7 is a sectional view on line 7 7 of F ig. 6. y

Figs andS are views similar tov Fig. 6 but showing still further forms of construction. f

In the construction shown in lFigs.V 1 to 4,

' two pliable metal strips 10'and11, formed of tin, lead orother soft metal, are folded back and forth across each other to provide amul tiplicity of contacting,interconnected reaches 10a and 11a, the bends 10b and 11b at the ends Y of such reaches,iextending around and contacting with longitudinal edgesfof the strips. By this construction, any desired number of the interconnected reaches ,lOafe-llarmay be f provided, to form an elongated packing inember of any desired length and it Will be obvious that due to the pliability of the metal,

this packing meinbermay readily flex to permit wrapping thereof around shafts or rods of different diameters.

Preferably, all reaches of the packing are secured together .with a filler or binder of rubber, gutta-percha or the like and this substance may be used for holding said packing in a channel-shaped "shell 12 such asthat shown in F ig. 2. rlhis shell may be formed of fabric, asbestos or any other desired mate` rial andits openk side exposes the metallic packing forcontactwith the rod or shaft. When the packing is installed in a stuffing box or the like and the gland thereof is tightened, said packing-is laterally coin- 14-14 are folded back and forth across the strips 155-13. This provides a plurality of reaches 13a-13b formed by the strips lll-43', and a plurality of reaches 14a-.1lib formed by the-strips 14--14V Y folded in opposite directions to provide the reaches 13a-'13b as Will be clear from F ig. 6,' andthese reaches lieedge to edge. ySimilarly, the strips 1%14 are folded in opposite directions to form the reaches 14g-*14h and The strips 13%13 are soA these reaches likewise lie edge to edge. The

bends 13C'and 13d of the strips 1313, eX- tend around and contact With the outer edges ofthe reaches 14a- 14Dl Similarly, the bends 14C-14d of the strips 14-14, extend `around and contact Withthe kouter edgesl of ,the

reach 13l 3b. Y n Y Fig. 8 discloses a construction similar to.r` that illustrated in lFigs. 5 and 6'; Whereas in Figs.5 and however, the reaches 13a-13b are disposed edge to edge in a common plane Vthroughout their areas and the same is true ico of the reaches 149-14", the four metal strips 15--15 and 16--16 of Fig. 8 are so bent that their reaches ll-15b and lib-16", are

virtually interwoven in inuch the salne fashion as the splints of a market-basket.

In the forni 0f construction illustrated in Fig. 9, three n'ietal strips 1T-17-1S, are used. The strips 17-17 are folded back and fort-h across the single strip 18 providing reaches TTL-17, and similarly the strip 18 is folded back and forth across said strips 17-17, providing reaches 18a. Longitudinal edges of the strips in this forni of construction as Well as in that shown in Fig. 8

are seated in the bends or folds of the metal strips. Moreover, it will be understood that these constructions and that shown in Fig. 7 may embody a suitable elastic filler or binder and may if desired be associ ate-d with a Hexzoible shell such as 12 of Fig. 2. f

Any form of the invention may be easily and inexpensively manufactured, 1n ay be applied with ease on account of its unusual flexibility, and when compressed by the usual '.5 gland or the like of. a. stulling box, will provide an effective fluid-tight seal.

As above stated, variations inay be made within the scope of the invention as claimed and obviously I ain not restricted to size or materials.

I claim 1. In a packing7 flexible strips folded bach and forth across each other to prov'de ay ninltiplicity of contacting interconnected reaches which jointly forni an elongated body, the folds of anyy of said strips being disposed around and in contact with longitudinal edge portions of another of said strips.

2. In a packing, a plurality of flexible 40 strips, another strip or strips across which said plurality of strips are folded back and forth` said other strip' or stripsbeing also folded back and forth across said plinalit'y of strips, providing a nlultiplieity of contacting interconnected reaches which jointly form an elongated body.

A structure specified in claim 2; adjacent reaches of the strips of said plurality being folded in opposite directions.

4. In a packing, Hefiible strips folded back and forth across each other to provide a Inuly tiplicity of contacting interconnected reaches which jointly forni an. elongated body. the. fol-d lines of any of said strips being dini( ed longitudinally of longitudinal portions of another of said strips.

y Intestilnony whereof I have hereunto at- .fixed mysignature.

' HERBERT S. VALKER.

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