US912490A - Stovepipe. - Google Patents

Description

5. T. RIDER.

STGVEPJBE. AHLIGATION FILED Nov. 2?, 19o?,

Patented Feb.16,g1909.

JOHNv T. RIDER, OF OIL Cf'lY, PENNSYLVANIA.

STOVEPIPE.

Specification' of Lettera Latent.

Patented Feb. 16, 1909.

Appiicaaon sied November 27, 1907. seria Nu. 404,1@

lo all whom 'it 'may concern:

Be it known that I. Joins T. iliona, :i citizen of the United States of America, resid i ing at Oil City, inthe county of' Venuugo and State of Pennsylvania, have invented certain new and useful Improvements in Stove ipes,` of which the following is a speci icatioii, reference being had therein to f the accompanying drawing.

vide a pipe having locked edges forming a 5 seam, which will not be affected when the pipe is cut to produce pieces of variousy length.

A further object of this invention is to i provide sections of store pipe that can be easily Yaiittquickly connected together to iiisurei` iion-lcakiible conduit for smoke.

` The 'invention comprises :i sheet or blank havin its edges bent upon themselves, and slitte to provide reinforcing lugs, in eombination with a connecting strip engaging the-bent edges of the sheet or blank.

The construction of the improvement will be fully described hereinafter in connection with the accompanying drawin{ {s.y forming a part of this s eeifeation, and itsy feature?.V of novelty will e set t'orth in the appended claims.

In the drawings: Figure l is a perspective View of the stove pipe embodying my iiiveution, Fig. 2 is an end iiew of a pipe with its closure strip removed, F ig. 3 is an elevation of the body portion of the pipe, and Fig. 4 is a similar View of the closure strip.

Referring to the drawings, 1 designates a blank sheet of metal which constitutes the body portion of the pipo, said blank being oftheproper width so that when rolled and manipulated as hereinafter described, a pipe section of the proper diameter will be prepared. The longitudinal mar inal edges of the blank are bent outwardly om the. plane of the blank and then buekufardly to form flanges 2,- said flanges extending throughout the entire length of the body portion. the bending of the blank to form the flanges providing longitudinally extending recesses between the plane of the`blank and the backmetal, bent and provided with intei'- i l wardly extending portions of the flanges. Une of the flanges 2 is slitted in a direction at right angles lo the. axis of the blank, the slits being located at various points in the length of the flange, said slits extendin the blank, thereby providing a pluralityr of lugs which entend in the plane ot und form u continuation of the blank and which protect the llanged edge thereof, said lugs being adapted to pass beneath the opposing edge ot the blank when the blank is forme into the pipe.

The complete rum of the pipe section is loi-med by the use. of a closure strip 4, which, liktI the body-portion has its longitudinallyl ,xtev'nding portions bent bat'kwardly to form llaiiges and the longitudbadly-extending rel vessels. the. flanges of one nien'iher extending L into the recesses ol' the other member. The iu'o members (the body-portion and the Clol l l .sm-e strip) are of equal length` and when assembled here their ends coincident. thereby p providing u pipe-section roniplete iii itself, land having' its` seam of similar cross-sec ltiolinl configiiration throughout its length. The two members of each section are onlyr assembled when ready to be used, the prior l nou-usseinhling ot' the members permitting ol a .nesting ol a` number ot' different bodyA portions to economize spare in shipments. the coinpleinental seam portions of the niemliers, however, being of' predetermined form or shape to permit ol' u ready assembling of the members when the pipe-section is to be completed. lt is lo he noted that the flanges vin shipping position extend in directions angular with respect to the plane of the members, the longitudinally-oxtendiiig re cesses being enlarged on the plane of the free edge oic the flanges, to permit the menibers to be readily assembled.

The members may be assembled either by slipping the closure strip longitudinally of the body portion, the flanges 5 extending within the recesses formed between the flanges Z and the body-portion. muil the ends of the two members are. coincident, oi' the unslitted flanged edge of the body-poi'- tioii may be passed into the complementa] recess of the closure .strip while the two members have their ends. coincident, and while in this position, the aiplieation of ressure on the, slitted flan ed edge of the body-portion causes said flanged edge to pass within the normal cylindrical plane of from the odge of the flange to the plane o the .section to a point Where the free edge of the closure strip flange will clear the free edge of the slitted flange of the bodyportion, whereupon a release of the pressure permits the members to properly engage, the provision of' the lugs on but one edge of the body-portion permitting this yielding movement while the other edge is in engagement with the complemental portion of' the closure strip. The latter manner of assenr bling` is preferred owing to the rapidity of operation, no essential care being required to haw` the flanges of the body-portion in substantial alinemenl and the lugs in proper position is necessary Where the lonatudinal movement of the closure-strip is iad; furthermore, the liability of a binding of the parts when the closure strip is being passed over the bead andcrimped end portion of the body is prevented. While the members at this time are assembled, the pipesection is not complete, as the engagement of the flanges may be broken by simply applying pressure on the slitted edge of'the bodyportion. The pipe-section is completed by flattening the seam-forming portions in any suitable manner, as by placmg the assembled section on an anvil and hammering on the outer face of the closure strip throughout its length. This latter operation changes the shape of the seam in cross-section, the flanges being carried to positions where they extend in substantial alinement with the members and forming a seam of four thicknesses of the metal in close conta with eachother, this being increased to thicknesses only at the points where the "lug: are located. rIhis flattening of the scam brings the opposing edges of the body portion into close proximity, the Width of the closure strip flanges being such that the flattening causes the free edges of the closure strip flanges toydraw the edges of the bodyportion together. When thus completed, the seam of the pipe-section is of substantially-similar cross-sectional configuration throughout the lenvth of the section and is of a form to prevent breaking of the seam, bending of the pipe along the seam line, as Well as preventing leakage. And inasmuch as the seein has the same configuration throughout, the section may be cut at any portion throughout its length to produce a section of less length Without affecting the seam connection in an manner.

As pointed out, the ody and closure strip have their ends coincident with each other. As the thickness of the seam is limited, the crimped end of the section, with the closure strip in position, may be inserted Within. the adjacentV ipe section when two sections are assembled? 1n the same manner as the Well known riveted or soldered seam pipe sections are connected, with the advantage, however, of having within the telescoped end of the adjacent section, a seam which is of exceeding strength against a bending of the pipe by the presence of the longitudinally-extending flanges and closure strip, these parts foming a reinforce within the telescoped en My improved construction provides a stove pipe having a continuous reinforced seam or joint, overlapping lugs Within the pipe serving to brace the same transversely, and cooperating with the'longitudinal clo sure strip to impart rigidity and strength to the pipe.

It is evident that a pipe retains its shape irrespective of where the same is severed.

Having now described my invention what l claim new, is

1. A stove-pipe section comprising a sheetmetal blank and a closure strip, said blank and strip being of equal length and each having its longitudinal marginal portions bent backwardly to form flanges extending throughout its length, said flanges providing longitudinally -extending recesses between the flanges and the mam portions on the same face of the main ortions, the recesses of one part freely receiving the flanges of the other part throughout the len th of the parts, said flanges bein of a wi th to force the opposed ed es o the blank into close proximity by a attening of the strip and the several flanges, the parts in flattened portion forming a seam of substantially similar cross sectional configuration throughout the length of the pipe-section.

2. A stove-pipe section comprisingasheetmetal blank and a closure strip said blank and strip being of equal lengthand each having its longitudinal marginal portions bent backwardly to form' flanges extendin throughout its length, said flanges provi ing longitudinally-extending recesses between the flanges and the mam portions on into close proximity by. a. flattening of the strip and the several flanges, the parts4 in flat-A t 1ned position forming a seam of substan-` tially-similar cross-sectional configuration throughout the length of the pipe-section, the blank having integral lugs projecting from one of its longit'u inal ed es, said lugs,

` when the 'section is completed, eing located on the inner side of the opposing edgeof the body-portion.

In testnnony whereof I afx my signature .in the presence of two Witnesses.

JOHN T. RIDER.

Witnesses:

1C. KAHLE, EDWD. S. MoAmJ'vY.

Images