US1540471A - Stovepipe - Google Patents

Description

STOVE PIPE Filed Aug. 25, 15524 fia.

Patented .lune 2, 1925.

UNITED STATES JOSEPH L. HEI/IP, OF ST. LOUIS, MISSOURI.

'STOVEIIPE Application filed August 25, 1924. Serial No. 733,932.

To all whom it may concern:

Be it known that I, JOSEPH L. Hmur, a citizen of the United States, and resident of the city of St. Louis and State of Missouri, have invented certain new and useful Improvements in Stovepipes, of which the following .is a specification containing a full, clear, and exact description, reference being had to the accompanying drawings, forming a part thereof.

My invention relates to improvements in stove pipes and has for its primary object a construction of stoveV pipe sections in which the seam is left open so that a plurality of sections may be readily nested for shipping purposes.

, A further object is to construct a stove pipe section in which the seam is originally left open but which is so arranged that the seam can be readily connected or joined, and in so doing, the opposite edgesof the section are drawn closely together thereby preventing any openings in the same through which smoke or gases may pass.

A still further object is to construct a stove pipe section which is originally shipped with the seam open and in which the seam canbe securely locked when assembled against any possibility of coming apart.

Fig. 1 is a side elevation of a section of my pipe as assembled;

Fig. 2 is a similar view with the seam unlocked and overlapping;

Fig. 3 is a fragmental perspective view of the male portion of the seam;

Fig. l is a fragmental perspective view of the female portion of the seam;

Fig. 5 is a fragmental perspective view of the seam as in interlocked position, the

' locking portion of the tongue being shown in dotted lines; and

Fig. 6 is a fraginental side view of the pipe section showing the first step in interlocking the seam.

In the construction of my device I employ a pipe section 7 which is provided with the usual tapered end 8 and with a straight end 9. The tapered end 8 is beaded as at 10, the bead being for the purpose of preventing the end 9 of an adjacent section from slipping too far thereover. The section 7 is formed of a single sheet of metal and is provided with the male edge 11 and :female edge 12. rlhe female edge 12 is provided with an inwardly bent portion 13 which follows the contour of the pipe section. rIlhis portion 13 is bent so as to form a il shaped recess 14C in which the male edge 11 is adapted to pass. The male edge 11 is offset inwardly as indicated by the numeral `15 so that the body portion 7 will be in alinement with or form a continuous circle section (See Fig. 5). f

The upper or closed end of the U shaped portion 111 is provided with openings or cut away portions 16 so as to permit the tongues 17 carried by the male edge to enter therein. It will be noted from Figs. 2 and 3 that the tongues 17 are arrangedat an angle less than a right angle to the edge 11. In other words, they incline longitudinally to the edge. The inclination of these tongues is all in the same direction 'and preferably awayV from the tapered end 8.

The assembling of my device is as fol lows The stove pipe section is first spread apart and the tongues permitted to` enter the U shaped recess 14, after which the portion or section adjacent the male and female edges is moved in the direction indicated by the arrows in Fig. 6. This brings the `out away portions 16 in alinement with the tongues 17, these tongues and cut away portions of each section corresponding in number, and the sections are then pushed together permitting the offset edge 11 of the male section to enter the recess 14. While the inclination of the tongues 17 draws the edges of the sections closely togetl1er,this drawing up of the edges is due to the inclination of the tongues 17. The inclination also serves the purpose of preventing the sections from readily springing apart, because in order todo so, the section of thevpipe adjacent the seam or meeting edges of the pipe, must be moved in op-- posite directions. The section thus assemw bled will be readily retained` in position because in order to take the sections apart, longitudinal movement in opposite directions must be applied to the opposite edges of the pipe seam, and in order to further lock the section against any possibility of coming apart even by., imparting lateral movement to the section in opposite directions adjacent the seam, the tongues 17 may be bent over as indicated by dotted lines in Fig. 5. In this way the stove pipe sections can be readily nested for shipment and be quickly and permanently secured against coming apart when for use, the inclined tongues assuring the meeting edge of the sections being held closely together even bet'ore the tongues are bent. This feature could not possibly be obtained were the tongues 17 arranged at right angles to the edge 11. Y

After the edges of the pipe have been properly joined the same may be slipped over a stake and the edge or seam hammered, it desired, and the joint or seam thus be further tightened and all possibility ot` gases escaping through the seamV eliminated. j

lt will be observed from Fig. 5 that the width ot' the tongues 17 is substantially the same as the length ot' the openings or cutawayv portions 16, and by means ot this construct-ion the acute edge of the lug draws the pipe section or edges tightly together` while the obtuse ef ge oi the lug forces the ends of the pipe into alignment, and from the 'fact that the lugs are of substantially uniform width throughout the above action commences immediatelyT upony the insertion of the lugs in the slots, and, theretore, the interlocking is not dependent upon the resiliency of the metal.

Having fully described my invention, what I claim is 1. A stove pipe formed ot a single sheet of material having one edge inwardly bent forming a U shaped recess, the closed portion of said recess being provided with openings, the opposite edge ot said sheet being inwardly offset and adapted to enter the U shaped recess so as to leave the exterior of said pipe free trom projections, and inclined tongues ot substantially the same width as the opening carried by said offset edge and adapted to pass through said openings whereby said offset edge is tightly held within the U shaped recess and the ends ot' the pipe are held in alignment. 1

Q. A stove pipe formed of a single shee ot material having one edge inwardly bent forming a U shaped recess, the closed portion of said recess being provided with openings, the opposite edge of said sheet being inwardly oiiset and adapted to enter the U shaped recess so as to leave the exterior ot' said pipe free from projections,

and inclined tongues ot substantially the same width as said openings and of uniform width throughout carried by said offset edge and adapted to pass through said openings whereby said4 otfset edge is tightly held within the U shaped recess and the ends ot the pipe in alignment, said projections bent over and having their ends resting against the inside of the pipe thereby preventing the unlocking of the edges.

In testimony whereof, Ihave signed my name to this specification.

JOSEPH L. HEMI.v

Images