the devices described in fig1 and 2 are devices according to the present invention which use the “ verticalization ” technique which was described in great detail in publications ep a 0 , 479 , 880 , wo 96 / 10667 and wo 97 / 05315 . these documents are incorporated by way of reference into the present patent application . in practice , in order to obtain a pseudo - yarn , a transverse looping is carried out , accompanied by a drawing for each individual fiber and / or filament by means of the interpenetration of metal components so as to give each fiber and / or filament a crimped shape . the looped elementary fibers and / or filaments are then accumulated by compression in the feed direction in order to constitute a transverse row of loops . this accumulation makes it possible to obtain very good parallelization of the fibers . at this stage , a pseudo - yarn in crimped form having the desired thickness ( or yarn count ) has thus been made , except for the twist . in addition , the entire preparation of the web in order to obtain a pseudo - yarn , that is to say the opening , carding , lapping and pre - orienting of the fibers , may be carried out according to the methods described in document ep a 0 , 479 , 880 . optionally , the improvements described in the parallel patent application based on the priority ep 99870152 . 8 , which describes a process for orienting and drawing the fibers and / or filaments of a web , may be applied thereto . by carrying out the process described in the above - mentioned parallel patent application , it is observed that there is also a relationship between the drawing value and the minimum orientation angle . for a web consisting of short 60 mm fibers drawn transversely by a factor of 2 , these fibers will have an average angle of about 20 degrees with a standard deviation of 5 degrees . using a web of fibers and / or filaments as proposed in this patent application , it is observed that only very small forces are generated during the treatment with the device according to the present invention , due to the true orientation of the fibers constituting said web . fig1 and 2 represent the device for carrying out the process according to the present invention . the device consists substantially of the interpenetration of a set of identical “ looping ” discs 10 , spaced apart and located on a common transverse shaft 0 , with a set of “ looping ” fingers 20 , that are also identical . the looping discs 10 are driven at a rotation speed which is preferably constant and uniform and defined so that the peripheral speed of the looping discs is equal to the entry speed of the web consisting of fibers and / or filaments . as already mentioned , a looping finger is arranged between two successive looping discs . the interpenetration of the various looping discs with the looping fingers causes a looping accompanied by an individual transverse drawing of the fiber and / or filament as described in details in the prior publications ep a 0 , 479 , 880 , wo 96 / 10667 and wo 97 / 05315 . according to the present invention , these looping discs 10 are fitted with teeth 101 , 102 , 103 that are relatively spaced apart . the expression “ relatively spaced apart ” means that the distance separating two successive teeth 101 and 102 , for example , on the perimeter of the disc is at least three times the width of an individual tooth . the distance between two consecutive teeth is defined by the accumulation value of the fibers and / or filaments of the web to create the pseudo - yarn of desired yarn count . preferably , the number of teeth present on the perimeter of a looping disc is between 8 and 16 . the number of teeth depends on the diameter of the discs and also on the ratio between the weight of the desired product and the weight of the entering web . the teeth present on these discs might be substantially sized in the same way as the continuous teeth present on the discs of the prior art with regards to the web - driving function . however , the other functions require a quite specific shape . the function of driving the yarn to the eye of the needle requires a sufficient height , preferably at least equal to 3 mm . the function of releasing the yarn from the tooth during the descent of the needles will necessitate a precise , slightly curved profile of the active part of the tooth . preferably , the slope of the tooth which is facing the advancing web is between 20 and 40 degrees , which thus allows a good penetration into the web while at the same time allowing an easy release of the loop made constituting the pseudo - yarn towards the collecting and transfer members . indeed , in the extension of each looping finger 20 is provided a transfer member which may be a knitting element or , as represented in fig1 and 2 , a needle 30 . the set of transfer members , and more specifically the needles 30 , makes it possible to collect and transfer the pseudo - yarn obtained by accumulation of the fibers and / or filaments . these needles 30 are securely fastened to a projection 35 and simultaneously perform a to - and - fro movement which may in particular be a sinusoidal rectilinear movement generated by a rod / cam system . the purpose of these needles 30 is to transfer the pseudo - yarn by perforating a support which is placed on a series of anvils 40 on which it moves . this support , not shown , is intended to produce the floor covering . these anvils 40 serve as elements for reacting to the penetration of the needles 30 into the support . in addition , hooks 50 are conventionally provided , which , when used together with knives , not shown , allow the production of a floor covering in the form of cut tuft or velvet . the movement of the needles 30 and the rotational movement of the looping discs 10 is obtained with the aid of a single main control shaft 100 supporting cams 110 connected to a conventional rod 120 / slide 130 assembly provided with a transmission 140 , 142 as far as the looping shaft 0 which has a gear reduction equal to the number of teeth 101 , 102 present at the periphery of a disc 10 , as represented in details in fig3 . as described in further details in fig4 it is observed that a fiber whose head is pinched by a tooth will be able to be entrained as far as the needles without ever being tensioned to the point of becoming blocked along a finger . this fiber will then be able to entrain the other fibers of the web without there necessarily being any actual contact with the teeth . the low forces generated during this treatment ( looping step ) make it impossible to obtain a bulking effect in which the positive entrainment of a few fibers allows the entrainment of the entire web . it is also observed that this bulking effect takes place as long as the distance between two consecutive teeth on the same disc only slightly exceeds the average length of the fibers present in the web . other advantages may be observed by using the process according to the present invention . in particular , the visibility of the working zone will be increased . the reason for this is that the present invention dispenses with the presence of detaching elements , which masked the view of the needles and prevented the operator from anticipating problems such as jamming . in particular , the fact that it is not necessary to use additional members such as detaching elements allows to produce a device which is easier to produce and maintain . the reason for this is that these additional members such as detaching elements were particularly difficult to arrange correctly within the verticalization device . in addition , the accumulation defects of the fibers and / or filaments in the eye of the needles are eliminated or reduced by using the process according to the present invention . specifically , this accumulation , which was not really positive according to the prior art , could be the cause of defects which were reflected directly on the finished product by holes or gaps . a large reduction in the general level of tolerances is also observed by using the process and the device according to the present invention . specifically , a slight distortion of a disc , for example , which reduces the play between needle and disc , will have only very little or at least a reduced influence by using the process as described above . the reason for this is that the spaced - apart teeth present on the second set of discs will be able to push the loops behind the needles . in a particularly advantageous manner , it is also observed that the looping forces are reduced when compared with the solutions described according to the prior art by using the process and the device according to the present invention . the reason for this is that the discs with continuous teeth are found to be particularly difficult to polish at the bottom of the tooth . it should be noted that polishing is essential in order for the fibers to be able to loop and move transversely relative to the discs . in reality , the consequence of this is an increase of the fiber / metal frictions . by using the spaced - apart teeth as described above for the second set of discs , it is observed that the fibers move in the smooth parts between two consecutive teeth , these parts being readily accessible at the time of polishing . the reduction in the forces resulting therefrom goes hand in hand with the reduction in the friction and thus makes it possible to achieve higher operating speeds . finally , it should be noted that the needles intended for producing tufted products or knitted products are greatly simplified . specifically , the reduction in the forces and thus in the torque on the disc shaft allows a smaller disc diameter and thus a reduction in the projection of the needles . similarly , the elimination of the detaching elements also makes it possible to reduce the height of the needle . the needles consequently have a more compact design and are more rigid and , as a result , less expensive to produce . fig4 a to 4 e more particularly describe the various stages in the formation of a yarn according to the process of the present invention and its transfer to the needles . for better understanding of the figures , it is understood that the needles are driven by a sinusoidal rectilinear movement and that their position is read as a function of the angle expressed in degrees of the control shaft , the top dead point corresponding to zero degrees . during a complete cycle of the needle , i . e . 360 degrees , the disc which is driven in a uniform circular movement turns by 360 / n degrees where n is the number of teeth . fig4 a ( position of the needle at 60 degrees ) the web has been introduced and has started its progress towards the needles . the bulking effect described previously allows a uniform distribution of the fibers during the looping step except for at the very position of the teeth where the fibers are pushed back slightly due to the “ tip ” effect of the top of the tooth which penetrates into the web at the time of its engagement . if this tip effect did not take place , certain fibers would loop by a value greater than the desired value ( corresponding to the depth of the tooth ), which would harm the yield . the depth of the tooth and also its general shape must take account of this . fig4 b ( position of the needle at 60 degrees in the following cycle ) the discs continue to entrain the crimped web ( during this time , the needle has completed a full cycle ) which will thus meet the shank of the needle . this obstacle is sufficient to block the progress of the fibers , which accumulate one behind the other in the form of elementary loops until the pseudo - yarn of the desired yarn count is made . the following tooth “ scrapes ” the fibers accumulated against the needle , exerting a pressure which allows the fibers to be gathered in the form of a tight “ strand ” which constitutes the pseudo - yarn ( analogous , except for the twist , to a yarn ) and then to pass this pseudo - yarn through the needle . specifically , the fibers forming a pseudo - yarn no longer have the ability to loop on the tooth . the yarn has advanced slightly while the needle has reached its top dead point . the distance between the base of the tooth where the fibers are accumulated and the bottom of the needle eye corresponds exactly to the looping value ( distance between the end of the finger and the smooth part of the discs ) which determines the height of the loop . the yarn is thus tensioned in the bottom of the needle eye , which will ensure its gripping by the needle . it should be noted that this gripping is entirely “ positive ” here and does not in any way depend on the nature of the fiber or its resilience . the needle has begun to descend . the profile of the tooth is designed such that the yarn is not retained , which is achieved if the horizontal distance between the bottom of the needle eye and the tooth , taking into account the needle / disc relative movements , is constant . the fibers which were located behind the tooth have begun to accumulate against the needle to constitute the yarn which will be taken up during the following cycle . this example describes a line for a two - meter product intended for motor vehicles , for example . the aim is to produce a product of 400 g / m2 in 1 / 10 inch ( 2 , 54 mm ) gauge with a feed per stroke of 2 mm using a fiber of 6 . 7 dtex 60 mm stroke . a “ short - fiber ” carding machine generates a 40 g / m2 web with a useful width of 1 m . this web is collected by the expander which expands it to 2 m while at the same time orienting the fibers around the average value of 20 ° ( relative to the machine direction ). the weight of the web has fallen to 20 g / m2 . the device according to the present invention is fitted with a set of identical discs 150 mm in diameter with 12 teeth ( i . e . about 40 mm between the teeth ). in this case , 40 mm of web in the machine direction will be condensed to form a yarn , which will be tufted every 2 mm . the weight of the product made is correctly 400 = 40 × 20 / 2 . if it is desired to vary the weight of the product , the only possibility is to vary the weight of the web . since a carding - machine web cannot increase in weight indefinitely , it may be judicious to append to the carding machine a rotary condensing device , which is standard equipment in the field of nonwovens and will make it possible to increase the weight of the web directly on leaving the carding machine . the maximum productivity of this type of carding machine is of the order of 120 kg / h , which corresponds exactly to the output of a device according to the present invention ( verticalization device ) working at 1000 strokes / min . the productivities between upstream machines and downstream machines is of the order of 1 . the line reaches here the maximum possible profitability . the line operates in a manner identical to that of example 1 . two 1 - meter carding machines will be used , the webs of which will be superposed to obtain , after 4 - meter transverse drawing , a web of 20 g / m2 entering the device according to the present invention .