referring in particular to fig1 to 4 , we see the penetrating truncated - conical part of the device 1 which can , indeed , constitute the device by itself and as such can act in a known manner to support or secure another independent element . this truncated - conical part 1 contains holes 2 , notches 3 , protuberances 4 and end nicks 5 which are of known type , generally produced before the rectangular strip - metal stub from which the truncated - conical part 1 is made has been folded along its longitudinal axis 6 , likewise a horizontal cut which forms the straight horizontal edge 7 at the end of truncated - conical part 1 , i . e . a cut and an edge 7 perpendicular to the longitudinal axis 6 of the part 1 is produced before the part 1 is bent . as represented in fig1 to 6 , the horizontal cut is partial and an upper part 8 is retained . this upper part 8 has the same width as the truncated - conical part 1 before the latter has been folded , i . e . when it was flat . so as to be able to have it make a circle around a pipe , it has been partially cut out at one end to produce a narrower part at the place 26 where it joins onto truncated - conical part 1 . two rounded edges 9 are provided and , optionally , a wide interior cut - out 10 . then over a substantial part of its length it is pierced by a wide and long median transversal opening 11 ( fig1 and 3 ), or alternatively a row of transverse staggered slots 12 is provided , ( fig5 ) forming laminae 13 , which preferably will be pushed outwards ( fig6 ) so as to permit the formation of an anti - noise clamping collar . in addition , this upper part 8 terminates in a cut - out part in the form of a tongue 14 . in order to facilitate the implementation of the collar thus formed by this upper part , curves 15 and 16 are provided by stamping ( fig2 ). as seen in fig2 tongue 14 is preferably bent slightly back away from longitudinal axis 6 of the apparatus . when the collar , i . e . upper part 8 clamps a pipe 17 , it is necessary to retain tongue 14 against the end of truncated - conical part 1 . for this purpose a ring 18 , either a closed one which is slid along truncated - conical part 1 before it is introduced into a wall 19 , or an open one which is placed open over truncated conical part 1 , is provided in order to make it clamp this part 1 . this ring 18 is also placed over tongue 14 which is preferably bent outwards in position 14 &# 39 ; in order to ensure clamping of the pipe . in addition , ring 18 preferably provides for a stop 20 placed horizontally which will enable ring 18 to be slid down again more easily over the truncated - conical part 1 , after , of course , it has been made to clamp the latter and tongue 14 in such a way as to force this tongue downwards , especially if it has been brought into position 14 &# 39 ; and thus obtain maximum clamping of pipes 17 . as already indicated , in order to deaden sound , laminae 13 may be pushed out . it is also possible at the same time , or only , to coat the strip - metal stump on the surface which is to become the inside surface with a layer of plastic having the effect of deadening sound . of course , the coating may be only on upper part 8 . referring to fig7 the apparatus is limited to truncated - conical part 1 , and joined to it is a stump of strip metal formed into a double collar 21 , 22 held in the centre by a bolt 23 engaging in a nut ( not shown ) held inside the truncated - conical part . if each of the return parts 21 &# 39 ; and 22 &# 39 ; of the collar held by bolt 23 is provided with an oblong hole ( not shown ), it is possible more or less to adjust the tightness of the pipe clamping . if , technically , the apparatus represented in fig1 to 6 , and which has an upper part in one piece with the truncated - conical part , is particularly remarkable in that while in use it is adjustable without the need to employ either screws or nuts and hence without having to use either a screw - driver or wrench , moreover , and this will also be the case for the apparatus represented in fig7 it can be driven forcibly into a wall or partition ( i . e . without having to drill a hole beforehand and nevertheless having to provide means of sealing ). in fact , at the exterior end of the truncated - conical part 1 the device has a straight plane 7 which can be used either directly for hammering on or on which to take support with the intervention of a dolly 24 ( represented schematically in fig2 )-- a long straight stem comprising a part 24 &# 39 ; of diameter slightly less than the inside diameter of truncated - conical part 1 , then a part 24 &# 34 ; at least equal to , but preferably slightly bigger than the outside diameter of truncated - conical part 1 , part 24 &# 34 ; being provided with a cut - away 25 , a segment of diameter slightly greater than the common part 26 between truncated - conical part 1 and upper part 2 . it will be easily realized that with a dolly 24 so designed , it is entirely possible to drive the device into wall 19 forcibly with the aid of a hammer . preferably dolly 24 is either provided with a small projection ( not shown ) on its part 24 &# 39 ; that projects into truncated - conical part 1 and which will serve as a guide for the insertion of dolly 24 by situating itself in the gap between edges 1 &# 39 ; and 1 &# 34 ; of truncated - conical part 1 in such a way that cut - away part 25 of dolly 24 is kept in place . in addition this projection will , if required , enable the device already in place in the wall 19 to be turned . it should be noted that normally the device is intended to be sunk in wall 19 by means of dolly 24 before closing ( folding ), even provisionally , the clamping collar , upper part 8 . however , if median opening 11 ( fig1 and 3 ) is long enough and wide enough it will not prevent the introduction of dolly 24 , although this would not be true of a device with an upper part 8 of the kind represented in fig5 and 6 . the invention is not restricted to the embodiments described and represented . in fact it is possible to give truncated - conical part 1 a cross - sectional profile other than circular , for example , square , triangular , hexagonal , and it is possible furthermore to join the device limited to a truncated - conical part to other elements of suspensions , supports , etc . . . . preferably , the device will be produced by the following shaping process : a ribbon of strip metal the width of which is slightly greater than the final length of the desired device or the sum of the lengths in the case where several devices are being produced at the same time , is uncoiled from a reel and forced to pass through a press , so that in succession , as it advances , firstly , it is punched so as to cut at one of its borders an edge the length of which at one end will be equivalent to the width of the stump of strip metal which it is desired to obtain , which edge width determines the feed pitch of the ribbon of strip metal , and an edge at the other end the width of which is less than the total border which it is finally necessary to cut out in order to arrive at the desired stump of strip metal in such a way as to retain a small border ; secondly , it is punched in order to provide in it the longitudinal perforations of the strip - metal stump as well as its lateral cuts , taking care , however , to retain on either side of the ribbon of strip metal a small border and a number of small tongues attaching the strip - metal stump to these borders and the strip - metal stumps to each other in the case where several stumps are being provided in the direction of the width of the ribbon of strip metal ; thirdly , the longitudinal cutting of the stump or stumps of strip metal is carried out , retaining the borders ; sixthly , the small tongues are removed and the ribbon of strip metal is folded by pushing the stump or stumps by their longitudinal central axis through a bed which flares outwards from top to bottom and ends in a hole corresponding exactly to the final diameter of the desired items . these items are removed through the said hole . for the implementation of this process it is intended to use a die press receiving a flat ribbon of strip metal advancing from an automatic uncoiler of a strip - metal reel , or other apparatus capable of bringing and feeding a strip - metal ribbon in a regular manner . the press and uncoiler or the apparatus feeding the ribbon of strip metal can function automatically and their automatic stoppage in the case of a malfunction revealed , e . g ., by a photoelectric system , can be provided for . the power of the press will depend on the width of the ribbon of strip metal and presses of 30 to 70 [ metric ] tons , for example , are foreseen . this press is designed to receive special tooling which can be modified depending on the desired dimensions of the items it is desired to manufacture . it may be noted that it is not a question here of a special press but simply of the provision of a special die which , together with a set of dies , makes it possible to produce at a rate , for a press of 50 [ metric ] tons , of 3 , 500 pieces per hour , items such as the device which is the subject of the present patent , but also other , every - day products such as forks , knives , spoons .