US1705620A - Poration - Google Patents

Description

March 19, 1929. H] KIELBEIQG 1,705,620

STOVEPIPE STRUCTURE Filed Sept. 29. 1928 Patented Mar. 19, 1929.

UNITED STATES PATENT;o aries}fgj HENRY KIELBERG, 0F MARTIN'S PORATION, or WHEELING, wnsr VIRGINIA, A CORPORATION or DELAWAR STOVEPIPE srnucrunn A Application. 7 filed September This invention relates broadly to stovepipe structures, and more specifically to attaching means forthe meeting edges of Stovepipe sections.

The primary object of the invention is to provide a Stovepipe section having its meeting edges shaped for intcrengagement and provided with means whereby, when interengaged, said edges are effectually secured against chance disengagement.

A further object is to provide a Stovepipe section of the character mentioned wherein the meeting edges carry lugs adapted to co-' operate for securing said edges in place and wherein the operations of interengaging and disengaging said lugs are readily effected by hand.

A still further object is to provide, in a structure of the character mentioned, lugs having forms which assure their assuming positive interengagement when disposed in their operative positions. 1

In describing the invention in detail, ref erence is herein had to the accompanying drawings, in which- Figurel is a perspective view of asection of stovepipe embodying the invention, the edges belng shown in unattached relation;

Figure 2 is a similar View showing the section twisted into position for introducing the lugs of one edge past those of theother, as in the attaching operation;

Figure 3 is a view similar to Fig; 1, showing the edges occupying attached relation,

Figure 4Iisan enlarged detail View of a fragmentary portion of the Stovepipe section; and- Figures 5 and 6-are enlarged sectionson lines 5-5 and 6-6, respectively, of Fig. 3.

Referring to said drawings,'l designates the body of a section of stovepipe formed of light-gauge sheet metal, in whichone of the longitudinal edge portions is first turned outward and back upon itself to form a member 2 of narrow width which closely overlies the adjacent portion of the metal body 1, and is thence returned parallel to and at a spaced distance from said member 2, forming a second member 3 Thus, there is provided between the members 2 and 3 an open longitudinally extending channel or pocket 4 adapted for the reception oftheopposite longitudinal edge portion.

The member 3 has formed thereon 2e, laesfse'r al No, 309,365.

throughout'its length a plurality ofshort tonguedike projections jwhich are turned baclg'toi'lie' more or less closelyagainstiits inner surface, forming lugs 5, said lugs 00- cupying spaced relation. 7

The opposite longitudinal edge of the pipe bodyl has formed thereon a plurality of tongue-like projections which are turned backto lie against the outer surface ,of said body, forming lugs 6. Saidlugs 6, spaced relatively to correspond with the spacing of FERRY, oIIIo; ASSIGNOR'TO"WHEELING; STEEL- con the lugs 5, are disposed directly opposite the. I

last mentioned-lugs. I a 1 Each of the lugs 6 has. formed therein a series of corrugations of a height substantially equal to the width of the channel or pocket 4, as shown at 7, and thus presents to the opposite lug 5 such a substantial thickness of abutment, as is best shown-in Figs.

5 and 6, that positive interengagement bethe lugs 6 laterally with respect securing the meeting edges in attached relation. v the present invention the'lugs 5 and 6have It 'will benoted, however, that in their edges disposed in relatively seated re- I lation and that each lug 6, having the corrugated formation disclosed, provides an abutment of such substantial thickness, as compared with the corresponding dimension of the pocket 4, that positive interengagement is had with the terminal edge of vthe adjacent lug 5.

What is claimed is v I 1. In a Stovepipe section of the character described, having one ofits edge portions bent to form an open longitudinally extendpocket for the reception of the opposite mg edge, tongue-like lugs formed on the outer pocket-forming member and occupying underlying relation to the latter, and corrugated tongue-like lugs formed on and occupying overlying seated relation to the op- I adapted to abut the ings of the other edge for securing said edgesiin attached relation.

' 2. In a Stovepipe section having one of its edge portions shaped to form :a longitudinal pocket, rearwardly turned lugs formed, on said edge portion and located internally of said pocket, and rearwardly directed lugs formed on and occupying seated relation to the exterior surface ofthe oppositeedge'portion of said section, the last mentioned lugs being provided with corrugations o fa' height substantially corresponding to-the Width of said pocket, the lugs of one edge being adapted to abut those of the other for securing sa'id edges in attached relation. 1

'In'astovepipe section having-edges of slip-joint type,

oneof said edges having therein a pocket for the-reception of the other edge, rearwardly directed'lugscarried by one edge interiorly of said pocket, and rearwardlyi directed lugs carried by the other edge and adapted to be received in said pocketin abutting relation to the first mentioned lugs,

being corrugated.

j In testimony whereof, I afiix'mysignature. HENRY KI-ELHERG.

the lugs of one of said edges 2

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