1966-03-16

Abstract of GB1022597 1,022,597. Pipe &c. joints. R. R. VOISIN. July 19, 1963 [May 22, 1963], No. 28691/63. Heading F2G. A stove-pipe assembly comprises similar pipes 1 each having at one end an outwardlydirected flange 2 and at the other a portion 3 of reduced diameter compared with the body of the pipe and an outwardly directed flange or projection 4 between said body and said reduced portion, the pipes being assembled so that the flange 2 and projection 4 abut and being held together by a channelled clamping-ring 5. The clamping-rings are split longitudinally and have their ends secured by a screw. Especially for the purpose of assembling a curved pipe between straight pipe runs (Fig. 3, not shown) a clamp may be provided in which the diameters of the lips on either side differ.

0

1966-03-16

F16L21/06 ; F16L23/08 ; F16L43/02 ; F23J13/04 ; F16L21/06 ; F16L23/00 ; F16L43/00 ; F23J13/00

F16L21/06 ; F16L23/08 ; F16L43/02 ; F23J13/04

GB19630028691 19630719

FR19630935784 19630522

NL6404023 (A); FR83650E (E); DE1897109U (U)

1	ROHR ZUR ABLEITUNG VON ABGASEN, INSBESONDERE OFENROHR.
	Inventor: VOISIN ROGER ROBERT (FR)	Applicant: VOISIN ROGER ROBERT (FR)
	EC:F16L21/06; F16L23/08; (+2)	IPC: F16L21/06; F16L23/08; F16L43/02(+5)
	Publication info: DE1897109U U - 1964-07-23
2	Perfectionnements apportés aux tuyaux de poêles et à leur montage
	Inventor: VOISIN ROGER ROBERT	Applicant:
	EC:F16L21/06; F16L23/08; (+2)	IPC: F16L21/06; F16L23/08; F16L43/02(+5)
	Publication info: FR83650E E - 1964-09-18
3	Improvements in stove pipe installations and other conduits for the evacuation of burnt gases
	Inventor:	Applicant: ROGER ROBERT VOISIN
	EC:F16L21/06; F16L23/08; (+2)	IPC: F16L21/06; F16L23/08; F16L43/02(+5)
	Publication info: GB1022597 A - 1966-03-16
4	No title available
	Inventor:	Applicant:
	EC:F16L21/06; F16L23/08; (+2)	IPC: F16L21/06; F16L23/08; F16L43/02(+5)
	Publication info: NL6404023 A - 1964-11-23

1	Pipe connection
	Inventor: DAUBENBERGER DETLEF (DE); FOITZIK PETER (DE); (+1)	Applicant: WITZENMANN METALLSCHLAUCHFAB (DE)
	EC:F02M25/07H; F16L23/16; (+2)	IPC: F02M25/07; F16L23/16; F16L37/252(+7)
	Publication info: DE3509774 - 1986-10-02
2	Pipe joint structure
	Inventor: BELL MICHAEL GEORGE	Applicant: HYMATIC CLAMP INTERNATIONAL LI
	EC:F16L23/08; F16L23/16D	IPC: F16L23/08; F16L23/16;F16L23/00(+1)
	Publication info: GB2117853 - 1983-10-19

WHAT I CLAIM IS:-

1 An assembly for the construction of a stove pipe installation or other conduit for the evacuation of burnt gases, comprising similar generally cylindrical sheet metal pipe elements and at least one clamping ring of channelled cross-section for securing two elements together, each element having at one end an outwardly directed outturned flange and at the other end a restricted portion the outer diameter of which is maller than the inner diameter of the other end of the pipe, the said restricted portion being adjacent to a peripheral outwardly directed rolled rib, the greatest diameter of which is substantially equal to the outer diameter of said flange whereby the restricted portion of one element may be introduced into a flanged end of another element with the peripheral rib adjacent to the flange and the pipes secured together by fastening the said clamping ring around both the said flange and the said rib.

2 An assembly as claimed in claim 1, in which the said portion of each pipe is of such a diameter that it can fit freely into the flanged end of another of said pipes.

3 An assembly as claimed in claim 1 or 2, including at least one pipe element which has an outwardly directed flange at both ends so as to be capable of being joined both to one of said other pipe elements and to a heating assembly.

4 An assembly as claimed in any one of claims 1-3, including at least one compensating pipe element having extending from one end a portion which is of sufficiently small diameter to be slideable within the flanged end of one of said other pipe elements, the said compensating pipe element having at the other end an outwardly directed flange of the same diameter as the end flange of said other pipe element.

An assembly as claimed in claim 4 including, for securing the or each compensating pipe element to one of sai( 1 other pipe elements a channelled clamping ring of which one edge is of the same diameter as the exterior of the said portion of said compensating pipe element and the other edge is of the same diameter as the exterior of the body portion of a pipe element to which the compensating pipe element is to be attached.

6 An assembly as claimed in any of claims 1-5, including at least one pipe element of elbow shape, said pipe element having at each end, an outwardly directed flange of the same diameter as the end flange of another pipe element of the assembly.

7 An assembly as claimed in claim 1, substantially as described herein with reference to the accompanying drawing.

ABEL & IMRAY, Chartered Patent Agents, Quality House, Quality Court, Chancery Lane, W C 2.

Abingdon: Printed for Her Majesty's Stationery Office, by Burgess & Son (Abingdon), Ltd -1966.

Published at The Patent Office, 25 Southampton Buildings, London, W C 2, from which copies may be obtained.

1,022,597

PATENT SPECWICATION

1,022,597 DRAWINGS ATTACHED.

Date of Application andfiling Complete Soecificationi July 19, 1963 No, 28691/63.

Application made in France (No 935,784) on May 22,1963.

Complete Specification Published, March 16,1966.

Crown Copyright 1966.

Index at Acceptance:-F 2 G( 2 J, 10 A, 26 A).

m It CL:-F 06 1.

COMPLETE SPECIFICATION.

Improvements in Stove Pipe Installations and Other Conduits for the Evacuation of Burnt Gases.

I, ROGER ROBERT VOISIN, a French citizen, of Villeprovert par Morse, Loir et Cher, France, do hereby declare the invention, for which I pray that a patent may be granted to me, and the method by which it is to be performed, to be particularly described in and by the following statement: -

The present invention relates to improvements in stove pipe installations and other conduits for the evacuation of burnt gases, and more especially to such conduits when comprising enamelled sheet iron pipes.

In accordance with the present invention, an assembly for the construction of stove pipe installation or other conduit for the evacuation of burnt gases comprises similar generally cylindrical sheet metal pipe elements and at least one clamping ring of channelled cross-section for securing two elements together, each element having at one end an outwardly directed outturned flange and at the other end a restricted portion the outer diameter of which is smaller than the inner diameter of the other end of the pipe, the said restricted portion being adjacent to a peripheral outwardly directed rolled rib, the greatest diameter of which is substantially equal to the outer diameter of said flange whereby the restricted portion of one element may be introduced into the flanged end of another element with the peripheral rib adjacent to the flange and the pipes secured together by fastening the said clamping ring around both the said flange and the said rib.

In this way, good tightness is obtained without even needing to supply the gripping ring with an asbestos joint.

The invention is illustrated by way of lPrice example in the accompanying drawing in which: Fig 1 is a perspective view of a pipe element according to the present invention.

Fig 2 is a sectional view on a large scale illustrating the assembly of two such elements.

Fig 3 is a diagrammatic view in crosssection of an installation of pipes assembled by means of pipe elements in accordance with the invention.

Fig 4 shows, in a partial cross-section, a portion of a clamping ring.

In figure 1, a pipe element 1 has at one end a flange 2 projecting outwards, for example at right angles.

The other end comprises a portion 3 of reduced diameter, for example impressed with longitudinal grooves The diameter of the portion 3 is, preferably, such that the said part can fit freely in the flanged end of another pipe element.

The portion 3 has an adjacent flange or exterior projection 4, with an external diameter equal to that of the flange 2, the projection 4 being, for example, of circular or oval cross-section.

Two pipe elements are assembled by introducing the portion 3 of one of the elements into the flanged end of the other element, and then by clamping together the flange 2 and the flange or projection 4 by means of a ring 5 of channel shaped section, for example semi-circular section.

The ring 5 is divided at 6 and its two ends are connected together by a screw 7 engaged in a socket 8 at one end of the ring and fitting into a threaded hole 9 in the other end (Figure 4).

In Figure 3, a first pipe element 10, both ends of which have flanges 2, is en6 % gaged in the tube of a cooking stove 12 A second element I of the type shown in Fig 1 is assembled with the element 10 by means of ring 5 This element is followed by a suitable number of further similar elements succeeded by a telescopic compensating element 13, fitted at one end with an exterior flange 14 of the same diameter as the flanges 2 of the other elements, and the other end of which engages telescopically in the adjacent element I below it.

Clamping ring 15 similar to the rings 5, but one side 16 of each of which has a diameter slightly smaller than that of the other side, ensure that the compensation element 13 is connected to an elbow piece 17, the ends of which are fitted with flanges 2.

Further elements 1 link up with the elbow piece 17, the last of these elements being connected to the chimney 18 by another compensation element 13 and a ring 15.