BE706349A - - Google Patents

Description

  

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  0
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 "PROTECTION AGAINST CORROSION OF DENUDED AREAS OF
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 HA'1'IEHES SYNl'I # 1'IQUES COATED TOLES. DE veiNIS, DE k: LLts, 1 ', "TC ..
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  Sheets are usually theft protected against corrosion. However, it is of a pa: 1 "t difficult to obtain a surface free of defects and - 11tu'Utt'O part., The varnish is not very resistant to scratches and impacts 0 neck destroyed quickly at the points weakened by the cor!; 'o2! l.iu;
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 underlying. We get much more protection,
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 ble by means of films of materials 8yltt.hétiqlloa col1tÍ1 '! , not..

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 hot on the sheet or by coatings of s5ntiretic materials applied to the sheet by rolling in the form of a - ;. a3soi; .. t "" u: 5e. These coatings are impact resistant and can be applied in a wide variety of colors.

   They can also be provided with drawings, drures or sketches. Their use has many advantages but
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 their rational implementation comes up against difficulties. It is only possible to weld the sheets fitted with it after
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 lifting of the coating at the weld points. To obtain a closed coating, these places must be re-coated. There is as yet no ecocomically bearable method for this, so that despite their advantages, sheets with a plastic coating are still little used. As only the faces of the sheets are provided with the coating, their edges remain bare and new ones are formed during cutting.

   To achieve complete and lasting protection against rust, the edges of the sheets must also be coated.



   The problem posed is therefore to protect or re-coat the bare points of the sheets which have been coated in different ways so that the manufactured part has perfect protection against corrosion on all its faces. In addition, it is a question of developing machines and devices allowing
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 iAPi> 1.Quick and economical indication of the anti-corrosive protection which must also be able to be applied in the case of series production within a production line.



   According to a first method, an absorbent material, such as a sponge impregnated with a liquid rust inhibitor, is passed along the bare points of the sheet by moving the latter or by moving the sponge. Los bare parts are thus provided with a coating. The sponge is simple-

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 ment fixed to an end wall of a r6cident (the product, liquid and is pressed by a spring against lrizr8to to protect. In the case of ribs in the form of arcs of a circle or
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 oriented transversely to the direction of movement of
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 the sheet metal the applicator device is installed Wall a cart and moved on rails the loril- dce ltr4rQtxs from In tnle.



  We have planned for the introduction of the tble, an opening
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 formed by back elastic rods presenting a cast.
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  When the edges of the sheet have iltsn protruding or recessed parts, such as trjanu # lar cuts, for example, the opening and the sponge are adopted thereto. The parts of you are coated by auntie
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 light pressure.
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  In the case of holes drilled inside the surface of the sheet, the rzUaortusnto material is placed on
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 a cone whose cross section have adapted to the holes,
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 The cone constitutes in the same way tOIll [J1'I the rfcilrirsrz 'of riimurve.



  The arost (the cut of the hole l1f> t coated in prersrsunt against it the sponge in the shape of a cone. In view of a more intensive coating, the cone provided with the sponge can be i'ix4 mlir a shaft and driven in rutatiort by a motor.The cone controlled with the sponge is then mounted on the container by means of a seal.



  In view of a rapid eurJucti <> n more, we plan to
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 cylinders covered with absorbent material, of which
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 the axes are perpendicular to the plane (the sheet metal rotates while moving I It) nll of the edge of the sheet.



  It is supplied r4t-tilièremttnt in antirouslio by the contact of a neighboring transfer cylinder dw ataeltiel the product has arené from the reservoir by a: f) I ,,!, T "" r. () Uttee.



  The more viscous rust inhibitors are applied by means of an ejector, covering the revl \ tent2 $ voitsinn of the bare spots. For this purpose, the annuity trirrylaa

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 elastic spray housing have the form of covering slats. In a variant, the covering is formed by adhesive tapes, the protruding part of which constitutes a protective hood for the atomizers. In addition, felt covered scrapers can be applied to the device.



   A thicker protective layer is obtained by the use of pasty rust inhibitor. In addition, stripped strips on the surface of a sheet can be filled with pasty plastic to form a uniform coating. For the application, rotating cylinders or moving bands are used which move against the bare spots or the Ion ;; of these, or in front of which the parts of the sheet to be covered are passed.

   According to a first example, the cylinder immersed in a plate filled with rust inhibitor extends along an edge or along a strip; in a second example, the applicator cylinder is perpendicular to the edge; according to a third example, a pair of rolls extend along the edge of a coated sheet on both sides and in a fourth case, the shafts carry parts of rolls for the coating of strips.



   Like the trays containing the rust preventative, the motor-driven applicator rollers are easily disassembled and cleaned to allow working with two-component products, such as sealant, glue, or sealant. other product, which can only remain for a limited time in the mixed state.



   Finally, the pasty material can first be applied to a tape, then be pressed and glued with it on the sheet. Thus, strip-shaped stripping can be folded and closed with thicker coatings or films of synthetic materials.



   According to a third method, a real coating

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 both scratches and shocks is applied by gluing tapes, preferably foil? thin, in order to coat the sheet. The tape is already advantageously provided with an adhesive, that is to say that it is a self-adhesive tape that it suffices to apply and press. In a first device, a roll carrying adhesive tape is a poet
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 on a carriage which is passed r: lce to 1-al # ts between the edge of the sheet to be coated and a rail parallel to this.

   The adhesive tape coming from the roll is placed by means of a pre-folding funnel around the edge of the sheet and glued by two pressure rollers on the upper face and the lower face of the coated sheet, then sectioned to the end of the ridge. In a second device for an edge oriented transversely to the direction of movement of the sheet, the carriage is pulled by a motor, with the intervention of a chain. Following a third example,
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 the adhesive tape is stretched out in front of two cylituiras: the upet 'posed, the edge of the sheet is slipped against the middle of the tape, then with the latter, in the process of being bent, between the cylinders where these ci press it against the coated ridge.



  For protruding or receding edge parts, such as
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 a triangular marginal cutout, a tniatontoir of the same shape, with clamping jaws, in front of which
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 sticks out the duct tape. When we exercise the pre8jol ', these knives cut the ribbon so that it can be carried around the; 1 ... J \ tf> S. T ..... holes drilled inside the surface - of the sheet metal present Óg-a lament tien .... -.... on coated. In order to coat these, a round Ho ndIH: 4iv (1 is glued below the hole and another rvu9ellb ndhé * <i # ve is applied above it, then one proHftt one against the other inward.

   To work with the machine, we first glue the rond1.los adhéttivof on a ribbon which is then stretched over the holes and. in

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 below these and whose adhesive washers are then cut, then pressed against the sheet and against each other. The ribbon advances in successive passes, attracted towards a roll where it winds up. In a variant, the outer edge of an expandable adhesive ring is pressed against the edge of the hole and then its inner part is folded against the latter and pressed against the opposite face of the edge.



  For this purpose, a compressed air cylinder is provided with an upper part which can be elastically inflatable and compress between a support rod and an opposite rod.



   According to a fourth method, tapes or cords of synthetic material are brought with the adjacent coatings to the welding temperature, then pressure-welded. Heating can be provided by means of an infrared radiator. In the case of a machine with tensioned welding tape in front of which is the edge of the sheet, the infrared heaters are presented in arcs of a circle arranged in front of the ribbon as well as above and below the edge of the sheet. Once the welding temperature has been reached, the sheet is automatically pushed against the tape, between pressure cylinders, and welded to it. Heating can also be obtained by means of a hot air blower.

   On a carriage passing against the edge of the sheet, with the tape roll, pre-bending funnel and pressure rollers, a hot air blower is installed, the upper and lower outlets of which extend along the edge. sheet and blow hot air into the pre-bending funnel. Instead of welding tape, a bead can be used. The heated bead is first pressed by a roller against the edge, then welded to the edges of the bare sheet by means of a pair of forming rollers and a pair of pressure rollers.



  Finally, the welding temperature can be reached by means of

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 electric heated elements. For the rtjvAttruirertt of an interstice is located in an angle between tieua pl jaf (HI butted! '! One qat the other, one inserts a titi a piece of welding rorrltrn and a piece of heated form cioctri'tuemont wire. filled in. The corner gap can. tuleIl1l1ul.
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 to be wrapped from the outside by means of a piece rite cordon
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 welding with the help of a piece tia form pivo1.ullto. The shaped pieces are guided against a p! M <) ue (the nuj> pvrL or articulated on it and are pr068ÓOI'I to the 'nucleus of a lever. The neighboring coverings of 13 veil of t4 () u ( Jillo are protected against overheating by plc.HlUt: lJ5 rorroiilinxiiiites or ries tubes cooled by Iteiiti.



  For let3 tlllas traversing a chain end fahricatioti, the di!: Lpoitif8 (the protection i5orit aproch (, 1'1 <1 <, u plates during a short tet-tpa t.r1B. To this end, <; o6K rlinlurrti .tifs are equipped! of an appliance, property dmtt Ion rrrrruvrr- .eàt;% da reconciliation tet rl'C (rt. "U1UJlt Mont <: ommnii <14n autt) # taat.i (; m '.. t0nt <The device will bring together a housing .1 '....! (; LOB t) riilzioj4 appropriated! And a drawer cI {, ldl1 <ft "by these .mtr:

   l's <tuilrt.;, trattotticnt rrmt. hn 1 "ain.rrrL tI <1l'1 release the device, a switch" /I(;J.,rll;1I "ir3 rapproCtterrt3rrt <'t auctrrc: ri treat it ot. when the advancing appurttll hits a second switch , work Ift. arr0t4 and iJpp;, reil1; 'r; 0 rtculw. fJans a prf! ud "r dil1! J () lSiLlf says rapprtrrhm, .erztt one foresees as ijotaur a cylindra il. air cnj; priv>, 3 uri piston po'jttmant titi dirsi> rzi3ritiï 'HfJld Jcateur a' ÍJone against the edge of in sheets.

   In J lnu riu dif: j <o # nitive r;, li: trur, we can mount a B% r. Hot air ooiJr for lt..rt c: nrot, r: r :, 1Jaii a KCf.ond .1j "IJt) the Jit1r, .1tor {HJfJ reconciliation erst a fJe. \ iIJle y'oraflable. i, e r1iI \ J'f) lslt, .lf of trait'-fjent conniata in a device fjtenrotJltt1t apd1'jl1 <illt. a ribbon -x, 1> iéxif pr <ea ,, 6 <ozj-.re 3. ': rrta au 6 <oyen de f'JltxJblé "air wave, Dna un troittieae diepoftltlf de r: riaprncxreG, ertt

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 an electromagnet is provided. The device has an endless applicator tape passing over caps and covered with an absorbent material.



   The anticorrosive protection can be applied to sheets shaped and welded to form finished pieces of it as an automobile door. Uncoated edges can be varnished all at once using an applicator device. To this end, this device extends around the edges and forms a frame. At the same time, the hollow frame constitutes the reserve container. It tapers downwards to form an opening filled with absorbent material and having a tapered slot to receive the ridges. If the neighboring edges are also to be stripped in view of welding, the sponge has a slit surrounding them. The ridges can also be coated with adhesive tape.

   For edges in the form of a circular arc, the adhesive tape is pressed from the outside by means of a carriage running on rails, and folded over the edge by means of a roller. In the case of straight edges, the adhesive tape is simply stretched, by means of a suitable carrier tape and a winding roll, over the edges to be coated. The applied and trimmed adhesive tapes are folded and pressed around the edges by closed clamping jaws.

   These jaws are mounted on a frame which can be driven by a movement of ^ storytelling and desconte ot which can also carry the rollers from which the tape unwinds as well as those driven by motor on which the tape is wound. The inflatable hoses can be used as a pressure device.



   The.!' The accompanying drawings show devices and machines for carrying out the various methods described.



   The figures ! 1 and 2 show in cross section

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 and in plan a device for applying a rust inhibitor for straight edges; Figures 3 and 4 show in cross section and in plan an applicator device for recessed edge portions; FIG. 5 shows in cross section an applicator device for the edges of holes; FIG. 6 shows in cross section an applicator device with a rotating cylinder carrying a splice; FIG. 7 shows in cross section an applicator device with ejector and a cover formed by closing rods; FIG. 8 shows an applicator device covered by an adhesive tape;

   FIG. 9 shows a scraper seen from a plan; figure 10 shows an applicator device with horizontal cylinder for pitiful anti-rust! FIG. 11 shows the device of FIG. 10 seen in plan; Figure 12 shows the device with a vertical cylinder seen partially in section; Figure 13 shows the device with a pair of cylinders in cross section; Figure 14 shows from the front a device for stripped bands consisting of end-cylinder parts; FIG. 15 shows the device with an applicator tape seen in profile;

   Figure 16 shows a wrapping device with tape in course of unwinding for edges parallel to the direction of movement: Figure 17 shows the device of Figure 16 seen in plan;

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   the. Figure 18 shows, in a travsversale section, a device 'applicator for edges of gold sheets = entered transversely to the direction of movement thereof; Fig. 19 shows, in cross section, a wrapping device with a tape stretched in front of the pressure cylinders; Figure 20 is a plan view of the device of Figure 19; FIG. 21 shows a coating device, seen in plan, for portions of recessed edges;

   Figure 22 shows the device of Figure 21 in cross section; Figure 23 shows a knife for slitting ribbons; Fig. 24 shows in plan a pull tape with an adhesive washer; Fig. 25 shows a device for cutting and applying adhesive washers, before cutting; FIG. 26 shows the device of FIG. 25, partially in section, after cutting; Figure 27 shows the device of Figure 25 during the application of pressure; Figure 28 is a plan view of a piece of sheet metal with a hole covered with two adhesive washers; Figure 29 is a piece of sheet metal with a hole covered by a single adhesive washer; FIG. 30 shows in a side view a device for folding and pressing an adhesive washer, during the folding thereof;

   Figure 31 shows the device of Figure 30 during the pressure exerted on the washer; figure 32 shows in cross section a welding device with infrared heater for a

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 stretched ribbon;
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 figure 33 shows a soii1 * i'i; àiitn ii air r-h.rmul
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 and a ribbon being unwound;
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 the fife 34 is a view is plan cnrrrapttrrlur3L
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 in Figure 33;
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 FIG. 35 is a view in section cormr3sjsnierlfsxti, in FIG. 33; Figure 36 shows a bead of fHJudHIU; Figure 37 is a corr {! 5 (1ollt'HlJt
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 in Figure 36;
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 figure 38 shows in section a dtIJpolJJLif #let
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 welding of a corner gap;
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 figure 39 is a view ors lellit, corresponding to figure i;

   1 to figure 40 shows, in a section trunavrsrxsrxle, a device r3o r.11) proclieiiitint in air crrmJsr3rn! 1! 4! ,,, tiuf! if an applicator device with {, r '() / IIe vur 1 The argument. fililtifi tttle in a string do r;> 1> rJcxtion; 1 a l 1 pi r = li shows a fi 1 x po n 1 t 1 f do rit lex) ro i 'Il dri.-Ilie 11 for an ai> p <irtil, le> 6 <; sra; the i'it; uro 42 is a d16poftitlf cin riJf'prodH'If # fnl with f3exWie d3 pression 1 <) nfl'11d # f pOlJr un 11 '> f'urui J .1' ,,,, rot.af; c des: xrttxs; Figure 43 is a ditsI) f) ltit.ir de pr MMjott 6JOtr.tro ... <11n'1; i'j! H: for; at,> j> itrei 1 aj, ssl icrstutrr xvoc rlll, a " -'r'fHI1 "
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 unending;
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 Ji, fàiruropt 1.1, nontre or cmsjm Er> nnvoerSa1v a device, pplici.1t, .olJr. * Vec 'PIJlJl'.4f en Ifertin de clI.Jr "fear the arAL.ft of a purti'> rc car;

   lu figure 1 5 aontrai a dil'Ji "'lSitif' 11rJldl" It. "'Jr according to 1 .. figure:" 1. for the ar6tet <"t Jea f.) r'J8 vI) 11'11ns; in figure 46 shows in plan a <Jixpo6jtir üf'f'11cstrrr for t <r6teK bent'1S 'days, $ gatekeeper * d'l1tQmq1J .

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 intended for a wrapping machine with rails and carriage; FIG. 47 shows, in plan and on a larger scale, the carriage with roll of tape and the control; Fig. 48 shows a cross section on a larger scale in the rails, the carriage and the car door; figure 49 shows in plan two tensioners of adhesive tapes for the rectilinear edges of a door (the car, fixed to a common frame; figure 50 shows, in cross section and before the application of the pressure, the frame provided with a marginal pressure device;

   Figure 51 shows the frame when the adhesive tape is pressed against the edges of the door (the car.



   A simple protection against rusting is obtained by applying liquid products such as varnish. In addition, neighboring visible surfaces, which are already provided with a coating and present their final appearance, cannot be smeared by dropper or atomizers.



   Los fil; ures 1 and 2 represent a device of this enre for the application of a rust inhibitor. A container 307 has at the top a filler neck for a liquid rust inhibitor, such as varnish, and on the right side, an opening 306 formed by re-entrant elastic tabs 307a. The container is subdivided by a movable wall 311, extending between the bottom 307b and the cover 307d, into a reserve chamber 307e and an application chamber 307f. The wall 311 has holes 313 through which the anti-rust impregnates an absorbent material such as a sponge 310.

   The wall is pressed with the sponge, by springs 312, towards the side, against the edge 301a

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 of a sheet 301. The sponge is curved in the horizontal plane and in the vertical plane, so that ltarta zona alone is moistened, while the upper face and the inferior face of the sheet are not affected by the drops. . In
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 In addition, on the bottom 30îb, are fixed by screws JO deex supports with rollers 304, ot on the cover 307d are
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 two other supports are provided with Kalots 305. The grooved rollers run on rails 302 and 303, so that the applicator device moves along a head.
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 301 whose arc-te 30la can also be varnished.



  In the case of a larger number of pieces, the sponge presents itself as a strip the length of the edge against which it is simply pressed. In the case of a large number of parts, the sponge extends in the form of rings around the sheet, the outline of which is embossed by an up and down movement. For the sheets
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 which have to go through a manufacturing process, the uz'ies oriented in the direction of movement can be coated by means of containers 307, fixed at left and right on the side of the conveyor belt. Oven
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 Sheet metal edges arranged upstream to the direction of movement, the movable container 307 is used in Figures 1 and 2.



  Los figures 3 and bzz show. a di6pOl '\ itif napplicator for the edges of sheets of which the edges present.have protruding or receding parts. A rocipieut!: = Composed of a container of rf'sorvo IJ1n puur t r.mtiro: i 1 be liquid and a lower part Cil protruding lilb. The heb part is adapted to the edge parts rotated from a triangular cutout with sides 21d and 210. 1, the front wall of the applicator part are recui.rGw9 ver.4 inside and form an opening formed by 1 a \ 1111 t. H. ro. to 1> xorbent, a sponge 1.2 per oxermple. This sponge ost. 111.11111.0-

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 bare by an angle 43 whose position can be adjusted by means of screws 43a and 43d oval holes which liml @ ent the insertion of the sheet.

   The exit of the rust preventative can be regulated by a screw 44, provided on the lid of the container, which allows air to enter it through the transverse hole 44a and the longitudinal hole 44b. When the sheet 21 is pressed, the re-entrant edges 21d and 21e are coated with the rust preventative. The metal sheet 21a is perfectly protected against rust by the upper and lower coverings of plastic material 21b and 21c.



   For corners protruding from a sheet, the opening is provided with edges tucked inward.



   The edges of the holes drilled inside the surface of the sheet can be coated with cylindrical or conical sponges. The cone of FIG. 5 adapts to a circular cutout 21g of the sheet 21. The cone can however also have an oval, rectangular or irregular cross section and be used for the treatment of holes of different diameters.



   In particular, the device consists of a hollow cone 71 pierced with rows of holes 76. The hollow cone serves as a container for the liquid and is covered with an absorbent material 77. For a more viscous rust inhibitor and a more intensive application, the cone can move under the control of a motor. For this purpose, the hollow cone 71 is rotatably mounted on a cylindrical container 72 and sealed by a ring 78. A shaft 73 fixed to the base of the end part of the cone is held on the lid of the container with a ball bearing 80. and carries at the end a pulley 74 for a transmission belt 75. The fixed reservoir 72 carries a filling tube 79.



  The rust remover reaches the sponge 77 through holes drilled in the bottom of the container and through the rows of holes

 <Desc / Clms Page number 15>

 
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 76 of the rotary cone 71. The device C'st xerr6 tie uléllllôro adjustable along two trin (-Ios of support til. Case trin- (; the can be raised and lowered mecarrlciamlnrerrt.



  A uniform and nftr application of the rust inhibitor is obtained by a pre-distribution of c and a J41> 1 + icament of the absorbent material, so (-l1l0 of ourrursllun jh * r # parts of the sponge are freshly impregnated here ' .asatirrsrr3lla and continually come into contact with ierôt4et4.



  According to Figure 6, such a device 161 consists of a reserve container 16a with a screw of r ± fJ * i <; o lÓ2, mza dropper 165 and a chamber .PI}, p] irllLlou 161 ". soax le coiiii) te-l ,, outtei5 165, titi c: ylindro do transfert ifi3 ost. mounted on a vertical axis, in contact with a cyiindro ltl'plicatour 164 mounted in the same way. On the front frxua, the citambre d The application) 6la has a slot 166 and two elastic closing rods 167 which can be fitted with felt. In front of the fhrmatura rods, xc finds a table 16X with sheet bed 160.

   The sheet ex% lintimmofi by the rods Up to the appticatnur cylinder 164 has r11tS: S (.f1 perlientlictilaireri.fent to the plane of the dosnin. 1. "HJlpl1.cI'tor cylinder 164 is driven in rotation, from m4h: .e fitie the transfer Lyljndrn! 63, of sorts clue the anti-rust have mmenr ftn permanently at the edges of the cut. The tOi'9 pout 4guletn <, iit fixed router and <: * '3nt .slory lcs dil1poeit.lf which tao 141) 1 'lttîl.



  J); UI5 le cun or ItlItirouil1., Applied badly by means of a m: xtisrs ahsorbanto, on II) I1I1'Jo18 dos fU "1 '..ltl1'! 'J of projection. 1.0 wax device ta ljitur "7 crs ni> 9tr ers,> ii casing 176 preborit.-tràt on the right side) it has a slot for the introduction of sheet 160. binders the lotti # tr, a pair called tr1nple8 elastics 177 separates a ch1> mlr ile proJltc: t.jl) 1I 17 /; it in which are fixed nozzles 175. len tr111lf "j can be maintained ferJ1ea by rOll80rlll (the corner, rension 178, The sheet does not 8ten" 'F.; Q between the trini -len 177 fixed

 <Desc / Clms Page number 16>

 until its edge comes into contact with the inner face thereof. The sheet can be moved along a nozzle. A series of nozzles 175 is advantageously provided, so as to varnish the edge in one go.

   The device is fixed to a support rod 179 and moves mechanically towards the sheet placed on a base 168.



   In the simplified construction form of FIG. 8, the coverings of the sheet 160 are protected by strips 180 glued to it. The strips are only glued on half. Their protruding part is bent in the shape of a funnel which serves as a protective hood for the nozzle 175.



     According to figure 9, the excess rust inhibitor which has reached the underside and the upper face already coated with the sheet 160 can be removed by scrapers.
181 filled with a felt 182. The scrapers are attached to a support rod 183.



   If the bare areas are to be coated as thick as the neighboring coatings, pasty adhesives are applied as a film. patch cements, metal adhesives or the like. For better adhesion, two-component products are preferably employed. Their use is more difficult because they only remain in the state of mixture for a limited time called "pot life".



   Parts coming into contact with these materials should be cleaned after "pot life" and should therefore be easy to assemble and disassemble. The coating materials can have the same colors as the existing revote.,: Enta. After hardening of the coating materials, they form a uniform surface and protect the sheet against corrosion.



   For the application of these pasty materials, we

 <Desc / Clms Page number 17>

 provides smooth cylinders or tapes $ @ Movement *
 EMI17.1
 The materials can also be applied on r \\ bU18 of synthetic materials and glued with them on 1 piece. The petn-enc 6tre iial applicator cylinders, bone parallel or perpendicular to the plane of the sheet.



   According to a first example, represent in fig-
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 res 10 and 11, a cylinder 2t11, controlled by a motor 2L'2 and mounted horizontally on one side plunges clans a plate 204 containing the material to be applied, a distributor 205,
 EMI17.3
 rotatably mounted and connectable with a ccxott 206, determines the thickness of the coating 2C) ia, The \ ,, tiud1 '\ t is mounted on a shaft 203 and held by a screw 216.
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  The shaft 203 is mounted in a 21lift housing which carries the motor 202. The housing is fixed to the ChnS8i 21b, 21 tue, 211d and 21le of a carriage fitted with rollers 214. The chaaMi "carries an angle rod 212 to place a tray 204 filled with rust preventative, the other side of which rests on a removable support rod 213. On a table 207, rests
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 a sheet 208 provided on the upper faces and in1't) rioure with a coating 208a and 208b. The non-oteraUcSU 208c aroma is directed towards the cylinder and is a tiller height
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 that when we push the device with the Knlete 2tlt on the rails 215, the lower angle of the edge is in contact with the upper third of the cylinder.

   The lower angle of
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 the edge scrapes the anti-rust and fills the into1 -,> the trlnugular wing between the edge and the cylinder. The device is
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 then brought back. The ridge 208 is ourobuo by rip-approaching the device for a limited time.
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 If brtndoa-shaped striations, found for example on the edges of welded parts, must.
 EMI17.10
 Our coated, we use a support table supuriouro 209, The lower face of the part 210 placed on chain
 EMI17.11
 table is brought into contact with the upper face ilii cy 1 i tt-

 <Desc / Clms Page number 18>

 dre and provided with anti-rust.

   This can be done in the direction of movement of the cylinder as well as in the opposite direction, and for this purpose the motor can be designed to turn to the left or to the right.



   With a view to cleaning, after loosening the screw 216, the cylinder 201 is withdrawn towards the front of the shaft 203 and the same applies to the distributor 205 after loosening the nut 206. After removing the support rod 213, the plate 204 can be removed.



   Figure 12 shows another wrapping machine suitable for edges oriented transversely to the direction of movement of the sheets. The lower ends of a vertical applicator cylinder 221 and of a transfer cylinder 222, disposed parallel to the side thereof, dip into a plate 223 containing the rust inhibitor. The transfer cylinder lifts the rust preventative by means of a net 222a and transfers it to the applicator cylinder 221 behind which a distributor 224 brings it up to the surface to be coated and determines the thickness of the coating. The two cylinders are fixed on back shafts 203 and 203a and held by nuts 216 and 216a allowing them to be easily removed. The shafts are mounted in the cover 225a of a housing 225.

   The shaft 203 is driven by a motor 202 and drives the shaft 203a in the opposite direction via a pulley and a belt 227. The cover 225a of the housing is connected by walls 225c and d to the bottom 225b . On the underside of the bottom are mounted a chain 226 and rollers 214, in order to be able to pass the device on rails 215 along the surface to be coated which is here an edge 208c of a sheet 208 provided with coatings 208a, b. The sheet is fixed to a base 207. The transfer cylinder 222 lifts the rust preventer and transfers it to the applicator cylinder 221.

 <Desc / Clms Page number 19>

 
 EMI19.1
 



  The t9i.striiutE3ur 22fit determines 1 'ûplli1'i:' wur du rovt '\ tUII1f! LIt.



  Continuing its rotation, I cylinder IIpplll '; ltul; 1' 22! 1> al; tyr 1a piece 20 and wraps it, 1.1111 <111 "1 that 1; 1 iniit: iiiii <; zal drawn the Lon, - of the art of the piece.



  Figure 13 rej> r <µs <Jiito orle troi.-41; tiiie i'ormrs of execution. The induction machine comprises two 1 OIl {1 "1 cylinders 231 and z3zr diapoaes! 'A further tir3 i' r <iiLr <,.



  The lower shaft 251 is mounted nno fetttn vttrticaiu 211c and presses by (the springs against the cylinder HI1J) IrlolJr 232. The cylindro 231 of the lower shaft picrnr; e ditiix titi plate 235 containing 1,9-ititiri) tiille. A1) -rl4tsrtnw of the upper ryyiidulrr 232, ast itlsi.:.tl7 1) n ltlutcs2 23 <'dont t 111 v (lt' L il rgi flow can be 1- <µiplév; iii inoyoti tktlrllt3 trinj; ln "7 with the help of a screw 238. l, '; trl> re 252 du cy11r1ettre nuptxrlrJtur 232 is cotnmitndé for an actor 202 ot 1 titrtirfi Jiif6ri <, iir 251, by a belt a rubber cross) 2, do Morto' 111ft the two cylinders turn corltrr the tip of the CAL% of the cunLiic ±. J. <, 4 cylinders are ruamtrs dnnn <Jrs gone '* s J.It.'r "J'u1 2 1! a ci Il r,! \ fi:.; j, S 2 1!, rm1-rlrjsam of a U P 1 a <Il "rJ 'a M S 1 fi kilt'.



  ! es 1! itte: mx 2'j ') and 236 rnptrsret on back <: nriili.r <, to whom ro # lit3nt parts 21 1a. l) rwunL in I1I1H: I, 1 ,,,,. 4 finds :)! deM rails 2), 1 i '' 'lIr lin chariot 23 <nuni do ga 1,, 1.1'1 4t7' 't carrying, the pi;!.', Ln chariot 2J carries an L41 <; ; 'c3> i munt <1 <, rftvilteccnts:': Of1i1 and L anlavrn ur le 1) orri '' '' Jr: lI ''. 1.01'1 "ndroj 1./5 :: f7Fe, r., 1. D ni) the revtft; tPlt has disappeared, must be coated again., \ I: eL effect, on, /) \ 1 tH \ l1 1 e! Jor "<1% iaii, 16 between Ir .; cylinders and on If: rtsr) uvro d "Hltirou1J] I),.) 'JI'5qu': '" ce <juM Irs chzrivt 23J arrives rntltrr. a t; (J (lt.I1 {; t. <µ1,, jtj¯ C1r! 232, which provo <} ') <! J., re': ul of 1: * tote Btlrrrkrty, Figure Il, , n <or: sort, a for ... '!, 1'.,. xl, r; lJt, lnr,, 1,> 4> j <,,,,. rts r; .Fii: 'iée. railr: ¯r¯i serves 2s the repair of r <av4 ,,; m <, i> t fUX places (1nlJr1l :: '! in force to bend.

   On éülf arLreh !! '. 1per;' Jf) I '!! S 251 and 2J2, snnt r: 1'Hlt6 ,, "fien partica do r: y1 ilrlrrxi6

 <Desc / Clms Page number 20>

 
 EMI20.1
 25J fixed with reflcfo screws 2: i4. The cylinder parts have the width of the bands to be coated. The lower shaft cylinder parts 215 dip into trays 235 containing rust inhibitor, while the upper shaft cylinder parts 252 are fed by trays 236 with flow settings 237 and 238.



  The sheet 208 with its coatings 208a and b is passed between the cylinder parts, so that the rust preventative reaches the stripped strips. A base plate 211b carries the side parts 21 la for mounting the shafts 251 and 252 as well as the plates 235 and 236.



   In addition to the cylinders or parts of cylinders, it is also possible, to apply the rust preventive, to use endless tapes, passing over cylinders, which transfer it.
 EMI20.2
 have you. on the part. To this end, one can use endless ribbons passing over cylinders and provided with anti-rust at one place (1 ('terniltié, which are brought into contact with the part to yield it to it, as shown in the figure 43.



  You can also vryloyer ni <#ult; <i161, ient the transfer tape for coating. Figure 15 shows such a tape coating machine. A 280 trolley equipped
 EMI20.3
 dv pairs of rollers 2e and 286 run on a rail 287 in 1.



  A two-branch lovior 270 is mounted on the 2ho axis between the 2OH walls. This lever carries at its outer end titi rouloull i '; 1 of tape 272 having the width of the strip to be coated. The tape passes over a roller of iuiduie 276, a support tolo 2z5 and another roll of füiiat; e 277, to reach titi j; support alet 27 at the end of the lever 270. ground the th Ga let d ' support, is installed éa2, er.ent a t <il <% t ii <prt'iC '! 1 279 subjected to the action of a spring. Aud <* p! <Us of 1.1 t.'11th of support 275, 8th finds mi rfcipient 2iJ containing the rust inhibitor. On the bottom of the receptacle is a titi transfer cylinder 274 protruding into an opening.

 <Desc / Clms Page number 21>

 
 EMI21.1
 ture the container and coat the rub-Mt with rust preventative in front of it.

   The two-branch lever? 270 can be removed from the. part by a spring 282 and be pressed
 EMI21.2
 against it by means of a device; compressed air comprising a cylinder 283, an ad!:. I $$ i ", u air 28J.i and a piston -184. The part, a sheet 208 provided with re ,, (lt.clt'nt: ll 20Sa and b, rests on a base and has an extruded trnnde. The tape coating machine moves on the garlic 28Î and a motor drives it along the belt. Lr rttt% 4%, i is d 'first coated by the transfer cylinder with an intirouille, for example a hardening adhesive, then is firmly adhered by the puck 279.



   Durable edge protection is achieved by wrapping them with tape. In the case of a sheet coated with synthetic material, the strip may come from
 EMI21.3
 same film which served for the revctenient of this one. 1) Q I% rg-ftrence, the tape is glued with a single cl5ts :, de sortf u <* for its fixing, it suffices to exert pressure.



   Figures 16 and 17 show a device of this kind for the coating of edges by means of a self-adhesive tape.
 EMI21.4
 adhesive. It consists of a jij trolley with a crisper 323a which carries an axis for a 3t5 roll of tape; 1 <llt <slf. The adhesive tape 3i ja is amonû by an in 1 and <1 <rfnvoi 316 to a prior pliago funnel j17 which r4-bitit, around the edge of Doizi do irs tble je> 1. The t'ntonnotr is fixed in a rt * -r.1; ble way between the plate 3: 2ya t.L tilliq cover plate 3z3U. An upper gaiet and a lower e-.it-t 118 then press the adhesive tape to your sheet to secure it to the latter. z the gaucho end of the carriage, is installed a processing knife z1 for the ribbon.

   The carriage carries at the front cL à t'arrJtcro <1 pair of rollers 320 including those l1Iuni !!! (the e "llIloll1r" run on 1 ';; rÔte 301ti de la t0! c, tamil /'! clttc ton rsett.rori

 <Desc / Clms Page number 22>

 roll on a rail 319. If the device is pushed to the right, the adhesive tape 315 continuously coats the edge 301a of the sheet. Apart from the sheet 301, the available; Sitif is based on the rollers 322. This device is suitable, for example, for edges oriented in the direction of movement of the sheet.



   Figure 18 shows a device for the ridges arranged transversely. A roll of adhesive tape 315 is installed in a housing 327. The adhesive tape 315a is brought by a deflection roller to a pre-bending funnel, then pressed by rollers on the sheet 301.



  On the upper and lower face of the housing 327, are mounted pairs of grooved rollers 320 rolling on upper and lower rails 324. The rails are arranged above and below a roller conveyor 328 for the sheet metal 301. To move the device, an endless chain 326, passing over chain sprockets, is suspended from the underside of the latter. A chain sprocket is controlled by a motor 325, with the intervention of a pulley 325c, a belt 325d and a control pulley 325a, Pulling the device along the sheet, the adhesive tape coats the edge this, then the device is returned to the starting position. The thus coated sheet can then continue its movement.



   Figures 19 and 20 show another example of edge coating with adhesive tape. The device 355 consists of a hollow support 355a carrying at both ends mounting plates 355b for receiving an upper pressure cylinder 351a and a lower pressure cylinder 351b. The upper cylinder is mounted in a vertical slot 355c and is pressed at each end against the lower cylinder by springs 352.



  On the outside of the cylinders, a roll of adhesive tape 350

 <Desc / Clms Page number 23>

 
 EMI23.1
 is mounted on the bracket. The tape. \ (11) (- :: - 1 if 3 i (? U is rolled in front of the rolls above a 1-dozer net. The sheet 301 is then brought against the tape j50; 1 and. bare 1.1 Clisse with this one in the interval between Nylindrea pressure clearance 35a, b and finally under these; the adhesive tape is therefore folded first around the url! The 30lit ties the sheet then press4 centers that A short back and forth movement of the sheet metal allows the coating to do i ',: ..., 1 (adhesive tape. For this purpose, the 3U1 sheet rested on (the hi 1 inm 35l + which are found in a base 35 j.
 EMI23.2
 



  You can also wrap 108 wedges uu medium
 EMI23.3
 adhesive tape. The disi) ositif rlos fi; ures 21 Î1 zij mrrttitre an example of miar <sin; iax triuttt; uluires for example, with: Jrl '! To5 21b and 21c, which can monk <16 j, N be provided with a varnish. A base plate 166 porto, 11 one) end, a pin 17 on which is attached a string of adhesive tape.

   The adhesive tape P: 11'I110 Kur un c; <1 <tL da reference jt7 and a tensioner 1 or spring of ch "t" p, IJI'1'putldiculai1 '(n: nt at the plane of the ruhan, In <.0! E 11.1. Otaintenun fjunn a p.tirr of the m! '\ Choiro5 of r, rtrr: l: rs 55 "and j5ir. 1..1 tnlei pUI'JI'I" between two angles jeju and J'7is et, avrjr vii plat6.1Il 'j1b, s'en {a :: t ")' in a pipe 51. from where neither the eot raj. or rfrr 1-- r the outside by a 1 ' (HHQrt (the conrnprssesiorr 5 ;. llrv on both sides of the plate, extend from IJIGhoir ,, 1'I de fSfj1'raI: 55a and 55L, folded '! Towards the interior, of which the lrr formed and the di: .ension are adapted and dU deco> ip;, K mH1'inai.

   Next to the clamped sheet metal, are located in couto.'ux 5l rJ "lJ1. Fnl.lf at the sectionnenent of the adhesive tape and installed in ... n!! L" HI {inside 2lrs, the cot3tessux 5Ha ,, 1. 58b do not have any exterior extrfr.ite of the, fete nAchoiria 55a and 55U, our hectinnner the uoto-> fil140if ribbon ddnft the angieH% back 21d and 21e of the decoua. The tape (19 is then followed. '; # Men4 to a fixing device 52. Comrr.e je 1'1J!;, 1'11 adhesive

 <Desc / Clms Page number 24>

 is released when the tensioner 51 arrives against the part, its fixing device is provided with an elongated slot 52a, is guided by a bolt 52b fixed to the plate 46 and maintained under tension by a compression spring 52c.



    When the device is pushed against the part 21, the sheet 51 first meets the adhesive tape 49 in the interior corner 21a, the knives 56 cut the tape, the clamping jaws 55a and 55d press it, starting in the exterior angles 21d and 21e, against the part, then the knives 58 cut it. With the adhesive tape already applied to the straight edges, the part is protected against corrosion.



   In addition to the outer edges of the sheets, the edges of the holes within the surface of the sheet must also be coated. Self-adhesive sheets 86 (FIG. 28) are used for this purpose, the outside diameter 86c of which is greater than that of the holes 89a while their inside diameter 86b is less than. this one. According to a first example, a ring 86 is pressed and glued from above, then another ring is pressed from below against the sheet 89 and glued to the latter; the parts of the rings projecting internally towards each other are then pressed against each other and glued.

   The edges of holes or recesses can thus be protected against rust. Figures 25 to 27 show a device operating on this principle. To continuously feed the self-adhesive rings 86, having an outer diameter 86a, they are first glued concentrically to a backing tape 85 with cutouts 85a (figure 24 right), concentrically to them (figure 24). left), then the backing tape with the self-adhesive rings is wound onto rollers 85 (Figure 25). A ribbon of sup-

 <Desc / Clms Page number 25>

 port 85 is stretched above and below room 89
 EMI25.1
 piercing the holes $ axa, so that the Quto-udh.ives 86 rings are in front of them.

   A punched * ") *? Comprising a punch 87a and a die 87b, cuts each washer 86 with an outside diameter 86c (figure 28) and the punch 87a then pushes it against the part 89 and% against the opposite ring 86 and the glue (figure 27).
 EMI25.2
 retain the self-adhesive ring 86, each punch 87 has at the top, in the center, a head 87d which can be pressed against a spring 87c. Each 87d head is circled
 EMI25.3
 a rubber ring 87e pushing the uto # tih # sives 86 bupues together, key inside the room (figure 27).

   To engage the "ut 1.". "L.'HtUel 'aut,' - adhesives into the device, the backing tape 85 is wound on the right side on spools. Figure 28 shows
 EMI25.4
 a recess of which the ilrobl1le is finished.



  According to a second example, a single extensible auto-ttdhes3vs ring is used for Ltanxabage. L.a 1>, tj; uo 104 is first glued by the outer edge - to the part,
 EMI25.5
 then the protruding part in Itevidenietit is reptile in it and pressed against the part (see f "i {U1. (tB 30 and 31). The device 102 consists of a cylinder 102a,
 EMI25.6
 with air intake tube 106, fixed on a trittali, do support t01. In its upper part, a hollow rubber retainer 103 is inserted into it, comprising, inside the cylinder, a part 103a with a thick wall, it is covered with a thick wall.
 EMI25.7
 of the cylinder, a thin-walled cylinder 103b damn dilJ18 1.>. -1 * a solid cone 103c.

   The dianiùtrn - '-' .. 1: - .1., E li1tdr 1031%
 EMI25.8
 Thin-walled is inside 1 the recess'lI1ollt 89 '* (1tb 1.% ptuco of double the wall thickness of the I) itr-, tie aut.o # nthMivu, After application of an alttO- ring .l (nJt5ive lo! i fur 10 Cnl1ft solid 103c, the device is lifted with the rod itso support 10 1, the cone sinks into Ileivitleniciit 8 ').' dt 'la

 <Desc / Clms Page number 26>

 part, the self-adhesive ring is folded upwards and pressed outwardly against the part. An opposing plate 107 then presses, from above, on the solid cone, where compressed air acts inside the cylinder 103b, so that the raised part of the self-adhesive ring is pressed against the part. Figure 29 shows a coated recess.



   The coating of edges with a ribbon can also be done by welding. To this end, the edges of the sheet c. United with a coating as well as the tape must be heated, to bring them to the welding temperature.



   According to a first example, the stretched strip and the sheet placed in front of it and coated with synthetic material on both sides are heated and brought to the welding temperature by means of infrared ray radiators then compressed by introducing them between two cylinders.



  FIG. 32 represents a device provided for this purpose.



  On our basic element 480 are mounted two hollow cylinders 484 and 485 cooled by water and pressed towards each other by means of springs, a roller 482 with the weldable tape 481 and a deflection roller 483. In front the tape, below as well as above the sheet 444 carrying the coatings 444a and 444b, are installed infrared radiators 488, 489 protected by sheets and insulating plates, Canopy the insulation and below that -Here are placed cooling sheets and tubes 496 and 497 cooled pae the water, in order to prevent unwanted heating ^ parts of the coating of the sheet adjacent to the edge thereof, A carriage 492,

   mounted in such a way as to be able to slide horizontally in the base element, carries a plate 475 with balls 475a, to facilitate the transport of the sheet, as well as two electromagnets 494 and 495 to hold it during the insertion.

 <Desc / Clms Page number 27>

 
 EMI27.1
 robage. After warming up at La trsapruturc3 ds xoiid: ij; <, an electromagnet 491, fixed in the clomsnt of 1> nxo, attracts the carriage to the left, the ridge 44li (, - do lit toto pl read Here ribbon and Slide it between the cylinders which jiroexsent it against the sheet.

   A spring 4r) 3 causes the rototir of the
 EMI27.2
 carriage 492, after interruption of the current,
 EMI27.3
 In a second example, the heating (let3 parts to be welded is provided by the air chnud (fliitrt) 8 33-35) t The device consists of a carriage 500 i; uitlrs 3.lt iritit. rollers 509, on the one hand, along a fixed rail 50H and, on the other hand, the lotic, de] 'art! te de la toi <; 444. Lo (: 1! Ilr] Ut.



  500 'carries a roller 501 with the welding tape? U ?, titi deflection roller 503, a funnel 504 <10 folding pr6uJ..hl (l! And two pressure rollers 505 and 506. A chain 510 pulls the carriage 500 the loritr of 1 '<> r4Lc, A dirsisonitif tt, hot shot 50' ost lristillé in front of The pretty funnel, link C, 'U8UX has air citaud superior and fIf'rlour. j ()' 7r 11. 5v7b, including HERE pipe of i.r'len05e 507c is Equipped with a tlrrrrnomsstrrs 507 "fit with a thermostat:; 07d, <1 ± ljoiirlionL ni) a tri-n point closer above <; y1 bordu fie 1 ;, tn 1 Ht ir cALé 01 "8 rnbann j02, to bring them to ia Lemp6r> itur of 75 () ud" IO 1) "rà (Jitrit leads you towards the pebbles of prcM'iio! * bzz and jGfi. 1 c8t from the edge to be welded, Jet 'revûtemcnts 444a and 444b do the t8lrs, rsr, trt protée by a device dày rnfroidisflorncnt.

   Colui-r.i r.includes a -stjl ,, - laughing tube 'Sy4 and a lower tube the fJ7 (provided) each with an iSfJ} e.:1''Hlt 1, .t {.r; .I. Uen "itnantN / 1 ') 1, and Il'J'j maintain 1 tAle pvx4B on a transporter? A Id 1] OfS 1µ7J, The rut .., n to be welded ut If, -nr <iv4tei: .qi, tx fI "ta tble oont portât) &. 1- te:.: Pr: r "ture de nouc3iiioi and then> on <: t% 16s by inn
 EMI27.4
 Pressure rollers 505 and 506.
 EMI27.5
 



  .; u instead of a rul, an to be welded, we had it 6Iynr a bead 5i 1 r ': f, rl: fHmtt to the flowers; if, and 37. the chariot 500, 4quij ;; from wtme die presitit to air cha, 1.1 507,; rr! rsemtQ

 <Desc / Clms Page number 28>

 however, a pressure roller 512 as well as a strip of forming rollers 513a and 513b and a pair of pressure rollers 514a and 514b, so that the weld bead runs like a tape around the cutting edge. The cooling and fixing devices are the same as in the previous figures.



   In addition to straight and curved edges, it is also necessary to protect the cutting edges in the corners and in the angles, as, for example, between two folded edges of a sheet. Figures 38 and 39 show an example where welding beads are used for this purpose. A sheet 531, bearing a coating on both sides, has on the left side a part 531a folded down towards the bottom and on the front side (figure 39) a part 531b, also folded downwards and provided once again with folds 531c and 531d .

   A device 540 is used to coat the gap formed in the corner of the folds 53la and 531b, This device consists of a base plate 540a, to place the sheet, which porto, on an arm 540b directed downwards, a lever to hand 537 for inserting an interior heater 545 and a hand lever 543 for pressing a hinged plate 544 on the base plate. On an appendix
540c with the base plate facing upwards, an outdoor heater, consisting of a tube 5112, can be attached to bring hot air and which is directed to the corner gap as well as to the weld seam exterior 541.

   the interior heater 545 consists of an element which occupies the space between the sheet and itself? folded, which has a groove 545a and which is provided with an electric heater. This device heats the inner faces as well as an inner weld bead
534. after heating to the welding temperature, the levers: '537 and 543 and consequently the plate 544 as well

 <Desc / Clms Page number 29>

 
 EMI29.1
 that the chxuffant element, 5y are pressed towards each other and the cords 53a and 54! welded to 5J tG sheets. and 3lb provided with a re ,, 8tement. Cooling tubes 533a and 533b are provided to protect the coatings! '
 EMI29.2
 exterior.
 EMI29.3
 



  With a view to the use of protection devices against rust for sheets which are worked Uaus a production chain, we bring them together due to the treatment devices and after that, they are brought back again on the eot4. To this fiiu, many various devices are equipped with orcanes of thrust and the approach and the separation are controlled automatically.



  A device for pushing the withdrawn can consist of a housing with a pushing member and a slide set in motion by the latter and carrying a: pp, re31 treatment.
 EMI29.4
 



  By lowering the pushing device on a switch, the approximation and treatment is triggered and by hitting
 EMI29.5
 another switch, we remove the operation and we rinse * 4
 EMI29.6
 the device in position on the side.



  As a thrust member, a cy-
 EMI29.7
 cOJ.tprimÓ air liner and for the treatment, a device
 EMI29.8
 applicator for liquid rust remover. Figure 40 showed
 EMI29.9
 a device of this removal for the edge di81'0:. 'lQ06 transversely to the direction of movement of the sheet. C) The apparatus consists of an upplicat apparatus, eur tir3 C't. a thrust device 69 which has :: urto the prev.ter vii coutaot with the edge of the sheet. The applicator device <'onMit <t <' an a reserve container 625, having at the top an adjustment screw and at the bottom, a roinjte-Cotittoz4 m irta that a tube 626c where there is an epotire and which pr <yonte rods with slits 626b overlap of a foutra 631.



  In the sponge chamber, below the COtnpt.l'-eouituH, an absorbent material 623a is. fixed on a sheet <! 2 rtt4clrv

 <Desc / Clms Page number 30>

 an intermediate wall. The sponge chamber extends rearward, in the form of a drawer 626, and door, at the end. folds 626a directed outwards and serving as support for return springs 630. In the extension of the sponge chamber, there is a compressed air pushing device 627 with a cylinder 627a and a piston rod 627b pushing towards the bedroom.

   The compressed air device is attached to the rear wall 629a of a housing 629 whose walls 629b forwardly surround the return springs 630 and then form a guide 629c for the sliding sponge chamber 626. When the switch 628 allows the arrival of compressed air in the thrust device 627, the slotted rods 626b slide over the sheet 609 until its edge 609a meets the sponge 623a which coats it. At the same time, the switch 632 is actuated to let the compressed air escape from the pushing device 627. The springs 630 return the applicator device to the rest position.



   For faster work, a dryer 636 is used for the coated edges. According to Figure 41, the device consists of an outer tube 636a, an insulation 636b and an inner tube 636c forming a mouth 626b directed towards the edge of the sheet. The air is blown into the ends of the inner tube 636c through openings 634, is heated on contact with the heating bars 633, then is directed by guide plates towards the edge 609a of the sheet, to finally escape through holes 635.

   The drying device is provided with folds 626a formed on a drawer 626. Inside there is installed an advancement device 627, comprising a cylinder 627a, a piston and a piston rod 627b, a housing 629 with a support 629b for the return springs 630 and a guide 629c for the spool 626. A switch 628 allows

 <Desc / Clms Page number 31>

 
 EMI31.1
 puts the air inlet cot.vprimé nt titi 1 nlorrupl.otll '632 per-
 EMI31.2
 puts the escapewent of it, so that the device
 EMI31.3
 drying is advanced then pushed back by the rasuorts flo
 EMI31.4
 recall 630.
 EMI31.5
 



  Fig. 42 shows a device for coating the edges of a sheet with adhesive tape in a production line; both the potlss4 '! a of the device against the nrte of the tiflo and the pressure on the adhesive tape are provided by air ("o1l1I # in / ..



  The device consists of a drawer 61t6, (tc.: -1el ''; '': <c.ir <; ulaire, extending along the sheet 609 and flll "cine intermediate sections subdivided into mie nhf'tttbro before fil13 for two clamping jaws 61ilii Eet Ir capable of Ii '{, r:;' rll1r from each other and one r.} ôlmllra arriër't Elcs + tinc'.e, ii scrape a .- ,. pp ..reil <ie pushed and fitted on its face urrlltra rice ruz folds G2.b: t, Between the jaws 6111 and the front chajnhre, flO finds a cli; <ini> rt3 à air 1 () 1Irl'.bJo e) 142 ..vor. Titi tuhn (the 1 '"ir c <>:, <prl;.> 6. 1) .. nrs la cizarnHre .Jrrli! 1'o, rrrr finds #tri other flexible (, 111 Ivrc, - tiilà <, of anfeneo fi ': <ir rom .. pri; .., 3 from a support 6'iJ, pl:> c6 corfirn In wall I1rrHtre 62') to the casing dei pushed '? 62 ',. <; this last rtr1tE711rQ <the aen appears 6 :: 91;

   fle: s springs due rtppel 630, lmaia fnr.r, n onauita un -, uicJ "62gc for drawer 626. and rsat fixed against in ruii belonging to a frame. In front of the slit flo3m f:) cholr <! H b + 1: and i) 111b, is stretched an adhesive tape 6'io port4 by a tape dt) support rj40-A. When the device cl'f.lurl) hj ("advances, the tape :: dh6Xif is torn from ia hun "" ria ft'lf'f'ortJ to fall back around 1 t ..r "t" of the tA: a I! (j09 ut ni -, smooth between Iers Jaws of ftp.rr..ve where, by iiilitates the introduction of coi air, pri: # 4 in the flexible 6't! at point 64iL, it is nniimin at one side) pr8ait) n. L () rl'lquton -rrtlte the arrival of 1 ";. Ir cor.pri .., 4, the re" 8orta 4U repoiiasont the device and free the sheet which continues not forward: #

 <Desc / Clms Page number 32>

 is lying. A switch 649 activates the tension device for the next adhesive tape.



   Figure 43 shows another variant. The applicator device comprises a reserve container 625 with a dropper and is attached to an application chamber 626 in which an endless ribbon 650 carrying a sponge passes over cylinders 652 under the control of an electric motor 651, Behind tape 650, there are
 EMI32.1
 uidu; a 6 joz sheets provided with springs which press the tape against the edge 60go of the sheet 609. Lr3 chamber 626 has the shape of a drawer and is provided with folds 626a which
 EMI32.2
 rest on return springs 630. These folds are surrounded by walls 629b by a pushing device 629 forming in the front part 629c a guide for the chamber 626.



  On the rear side of the housing 629a, are mounted two two-branched levers 655a, b, the inner branch of which is articulated.
 EMI32.3
 cule has the frame 6 slia of a niectro-magnet 654 and each of the outer branches of which is articulated on a compression bar t'56. These compression bars are attached to chamber 626. During descent, a switch 629 net 19t-, electro-; tlnizint 6511 under tension, so that the armature 6.; t +: t is attracted, the motor 65) is;. and running and the applicator device is pushed against the edge 609a of the sheet to coat it. In the forward position, the switch 632 interrupts the current and the springs 630 return the device to the rest position.



   In addition to simple sheets, shaped sheets and
 EMI32.4
 50ud6E> 8 must have their <or # tes protected against corrosion. We will take as exer.ple a car door made of welded sheets.



   Figure 44 shows a device for varnishing,
 EMI32.5
 This device, designated by 1 t +, consists of a receptacle 114t containing lt, rust, a

 <Desc / Clms Page number 33>

 
 EMI33.1
 bottom 115 pierced with holes 1150 .. and an appendix tt4t> linking one decreasing and presenting d.Kms the bottom a slot 3 3 # r. The appendix is filled with an absorbent material t tp the t.xtff of which: -. The conical bottom tttia can rest on the sides of an inner wall 117a and an outer wall 1 't'l 'of a door 117. To this end, the device moves around the door, the subdivision, the arttes do rotipd. It fi't1J1O a frame that can be lifted and lowered to varnish cutting edges in one stroke.

   Screws 118, provided on the container cover, regulate the evacuation of the varnish through holes 118a
 EMI33.2
 The crack: 5 represents a variant in the -quo 1-. The lower end of the absorbent material 116 has a slit 1 t6b. In this way, not only the cutting edges can be protected, but the neighboring surfaces joined by welding.
 EMI33.3
 



  Guests can also use 01.1'0 coated -.% Tlttill duct tape. To this end, the sealant tape is pressed outside against the zippers in an arc of a circle with a suitable wrapping device and half of the protruding tape is folded horizontally over the cutting edges.



  The adhesive tape is stretched with the help of backing tape
 EMI33.4
 separable above the lines and if: ne8. Clamping jaws that can be lowered then all fold
 EMI33.5
 adhesive tapes down around the I1rt \ t, .otl and press them against the workpiece, for example with (inflatable flexlbles.



   The coating device for curved edges
 EMI33.6
 117f is aided on rails, parallel to ur {\ 1..os.



  According to figures 46-48, this device consists of a flat housing 122, a two-branch lever 125, mounted on
 EMI33.7
 an axis 126, including a branch 125; 1 port, with titi Xt1 1211, a roll of adhesive tape t2, while (lite 1 t .. \ tLro tsr: xmchv

 <Desc / Clms Page number 34>

   125b carries two guide rollers 127a and 127b, a support roller for the tape 123a, a coating roller mounted perpendicular to the first and designated by 129; the device also comprises a knife 130, a compressed air pressure device, for the support roller 128, which consists of a cylinder 134, a piston rod 135, a return spring 136 and a compressed air line 137;

   the device further comprises rollers 131 placed on the upper face and on the lower face of the housing and guided by their grooves on C-shaped rails 120 and a commando consisting of an electric motor 132 fixed to the housing, with a wheel to friction 132a and an opposing wheel 132b which can be pressed by screws 133 under a running rail 121. At the start of the guide rails, there is a switch 40 allowing the electric motor 132 to be switched on and the compressed air supply. 137 and at the other end is a switch 141 stopping the supply of compressed air and reversing the polos of the motor 132 in order to recoil the device.

   The guide rails with the wrapping device are installed in a frame which can be lowered for the treatment of the door and raised, to allow the advancement of the latter.



   In order to be able to mechanically tension an adhesive tape intended for the rectilinear edges 117g of the door 117, a tape subdivided along its length is used (figure 50), one of the halves of which takes the form of an adhesive tape 145, while the other half is in the form of a backing tape 145a reinforced with plastic threads 14c and tearable from the adhesive tape 145 by strips 145b. According to figure 49, a spool carrying the Complete tape is mounted on one side of the door edge to be coated and a take-up roller 148 for the backing tape 145a is installed on the other side.

   By rotating

 <Desc / Clms Page number 35>

 
 EMI35.1
 step by step the receiving tape 148, coiim.tii (it4 by gold) motor 7, the tape wraps 15 is stretched ... 1 ;, firttt-e rrg, if provided a second re r tension device; AUre 14 (il, 1471 for the second;> rotates the door porp <! N <! Icu) .tir <* <'#
 EMI35.2
 him.
 EMI35.3
 



  The feed roller and the rottlrr.mr re-rttl) tetir .mec the command sorit rix4s to a 151s frame which can lower it on the door with the ruh.ll1R ulllfH 1 f: 4 te3crcln, The chfl .: ' ! sis door, along the iiràte? do Ji. liortièrn, dl1: 1 inner and outer clamping jaws 1 ") Oit oL \ ') 01) which folds around the rete, .3 l 17jj as well the ru9a; tr, adhesive 12J <> for;, ret- # cint .r '(! s 117f ycm If US rlllh'flM adhesives il + 5 and separate them from the tapes do riupl3ort 31: a, On the side of the inner jaw! 50:', is diaj> ox4 a rubber 151 and on the rib (the 1; 4 jaw extlr3 "urn 1 jOb, is placed a ii; xi?, lc 1 52 can 4% be jinTifl4 with the iisoyitn of a tuLe 153 anant the air conrprriW.

   Lorl'l (Jt.1'll .., fUIt. Iipiafle, la ch "Mhre à air presses your serrta mf'tchojrel'l; r: (you1 tighten the adhesive tapes between you] or% faces 1: àt6r , ilia rüzrs: rotes 1 71F (figure 5)., pr5 l '! rr; Ct 1';> 1 r rr, nzi, rimr escapes, the chassis is rf1] v {... vp.c 3e riin ; nrilLif 'f' <1 <. tejt) # sion and the, pressure device 1-i porL3i, rc continues its! 'I! Quve:. slow.

 

Claims (1)

CLAIMS EMI36.1 --------------------------- 1. Process for protecting the stripped parts of metal sheets coated with layers of plastics, varnishes, films or similar products, characterized in that these stripped parts are covered with a liquid, viscous or solid anti-rust agent, applied by friction, spraying, welding, or gluing, 2. Machine for protecting the stripped parts of metal sheets coated with layers of plastics, varnishes, films or similar products by the process of claim 1, characterized in that it comprises devices for applying to these parts an agent liquid or pasty rust inhibitor and / or tape or bead, by temporarily moving these devices to and along the metal sheet, then away from it and, if desired, devices for pressing these agents, tapes or cords on the sheet and / or dry them. 3. Method for protecting exposed parts of sheets coated with synthetic material, varnish, film or similar protection against rust, characterized in that a material is passed through. absorbent, such as a bride for example, impregnated with a liquid rust inhibitor against the exposed places, by moving the sheet or by moving the sponge along these, to coat them. 4. Machine for carrying out the method of claim 2, characterized in that the sponge (310) is fixed in a container (307) on a carriage (304, 305) and is guided by rails (302, 303) along an edge EMI36.2 cutting (30101) of a sheet (501) (Figures 1, 2). 5. Machine according to Claim 4, <Desc / Clms Page number 37> ized in that the container (307) has on the front side rods (307a) directed obliquely towards the interior with a view to forming a mouth, and in that a movable end wall (311) pierced with holes ( 313) and subjected to the pressure of springs (312) form the support of the sponge (fig. 1,2). 6. Device for carrying out the method of claim 3, characterized in that, for coating portions of protruding or recessed ridges, for example triangular in shape (21d, e), the mouth (41b ) of the container (41) and the sponge (42) are adapted to the ridge part and in that a stop (43) limits the depth of insertion of the ridge (fig. 3, 4). 7. Device according to claim 6, characterized in that a screw (44) with loops (44a, b), provided on the cover of the container, makes it possible to adjust the re-entry of the air (fig. 3, 4) . 8. Device for carrying out the method of claim 3, characterized in that, for the indentation of ridges (21g) of a hole (31) inside the surface of the sheet, the absorbent material (77) is fixed on a hollow cone (71), with rows of holes (76), the cross section of which is adapted to the contour of the holes and which at the same time serves as a liquid reservoir (fig. 5) . 9. Device according to claim 7, characterized in that the hollow cone (71) is fixed on titi shaft (73), mounted in the cover and in the bottom of the liquid container (72) and provided externally with control members. (74, 75), and in that a seal (78) is placed between the rotating hollow cone (71) and the fixed reservoir (72) (fig, 5). 10. Device according to claims 8 and 9, characterized in that a series of containers (72) can 1 <Desc / Clms Page number 38> move against a rod (81) extending above the part (21) and be tightened with screws (fig. 5). 11. Device for carrying out the method of claim 3, characterized in that the absorbent material is placed on a cylinder (164) whose axis is perpendicular to the plane of the sheet and which applies the anti-rust to the cutting edge while rolling. 12. Device according to claim 11, characterized in that next to the applicator cylinder (164) is installed a transfer cylinder (163) that a container (161a) supplies with rust inhibitor by means of a dropper ( 165) (fig. 6). 13. Method for the protection against rust of exposed parts of coated sheets, characterized in that the anti-rust is sprayed on the exposed parts by nozzles (175) and in that the neighboring coatings are covered. by certain devices (fig. 7, 8). 14. Device for carrying out the method of claim 13, characterized in that the ejection nozzle (175) is fixed in a housing (176) with an injection slot in which, in front of the nozzle (175) , there are closing rods (177) pressed against each other by springs (178), the horizontal faces of which cover the upper cover and the lower cover of the sheet (160) (fig. 7). . 15. Device for carrying out the method of claim 13, characterized in that the upper coating and the lower coating are covered with adhesive strips (180) partially projecting beyond the cutting edge where they are folded. funnel-shaped (fig. 8). 16. Device for putting the procedure into practice. <Desc / Clms Page number 39> die of claim 13, characterized in that, scrapers (181) provided with felts (182) for excess rust remover are placed above and below the sheet (160), EMI39.1 behind the nozzle (i 7 g5), on support rods. (lX3) (fig. 9). EMI39.2 17. Method to protect against the rusted linen (the exposed parts of sheets bearing a coating, characterized in that pasty rust inhibitors are applied with the help of rotating cylinders, moving bands, on the exposed places, by moving the sheet or cylinder laws (fig. 10 - 14). EMI39.3 18. Machine for the mixing on prittlqtje of the process of the rovondication 17, characterized in that a cylinder (201), driven by an I., otour (202), extending 1 <3 along the exposed parts ( 20xc) of a sheet (20H), fixed 1111 shaft (203) supported on one side only by means of a wine (2 for example, do iiianière to be able to be dismantled 1 "aolJt'llIJotlt, and of which the lower part plunges into a patch (201j) containing rust inhibitor, is provided, by an adjustable distributor (205), with a layer (201a) of uniform thickness and can be 'men' - against the parts 1 / 11t10 "iJ. nu mvea the aid of a chariot (21Ib-o) of, jxlotn (214) and of raiitt (215) (fig. 10-11). EMI39.4 tj, Machine according to claim) 8, characterized in that for the dturàten coating of, cut (20Fc), a support table (207) is lillicée at a) height such that the plane of the Jiiteraecto sheet rotating cylinder (201) durim ei. part of the Juprje'J1'eJ and in that it forms a triangular gap between the StrAte do cut (20hic) and the surface of the cylinder (r1 ,. 10). 20. t.4china according to the resale irliltiore tfi, characterized in that in view of the coating riett xurthcon miMes bare of a part (210), a support table (20J is ijlhf, 4.0 <Desc / Clms Page number 40> at a height such that the lower face of the part is tangent to the upper face of the rotary cylinder (201) (fig. 10). 21. Machine for the practice of the method of claim 17, characterized in that a cylinder (221), driven in rotation by a motor (202) and arranged perpendicular to the bare parts (208c) of a sheet. (208), is fixed, with an adjacent transfer cylinder (222), driven in the same direction and carrying a thread (222a), on shafts (203, 203a) supported on one side only, so as to be able to be easily dismantled, and the lower part of which plunges into a tray (223) containing anti-rust, is provided by a distributor (224) with a uniform layer located at the level of the stripped parts (208c) which it can move with the help of a cart (225a-d) of rollers (214) and rails (215) (fig. 12). 22. Machine for practicing the method of claim 17, characterized in that two superimposed rotary cylinders (231,232), extending along the sides. exposed parts (208c-e) of a sheet (208), are fixed so that they can be easily dismantled on shafts (25t) (252), supported on both sides, in that the lower shaft ( 251), mounted in a vertical slot (211c), can be pressed by the springs against the upper shaft (252) and controlled by a crossed rubber belt (234), in that the lower cylinder (231) is immersed in a plate (235) containing the rust inhibitor, while the upper cylinder (232) is fed by an upper plate (236) with adjustable flow by means of a rod (237) and a screw (238), and in that the exposed places (208c-d) are coated by inserting them between the cylinders, (231, 232) (fig . 13). 23. Machine according to claims 17 and 21, <Desc / Clms Page number 41> EMI41.1 characterized in that the shafts (251 22) orient das cylinder parts (253) whose position can be adjusted by means of screws (254) for the coating of 1> * ndeo \ 1. \ i. $ to bare in the upper and lower coverings (21'Sa, b) of a sheet (208) (fig. 14). 24. The method of claim 17, characterized in that a pitiful rust inhibitor applied to a tape is glued with the latter on the exposed places of the tala (Fig. 15). EMI41.2 25. Machine according to claim 2, c # Lr Ct4- ized in that a tape (272), drawn from a roll (271). can be coated with anti-rust by a transfer cylinder (274). rotatably mounted in the receptacle (273) containing this Lui ** EMI41.3 ci and protruding through an opening in the bottom, tltrca µtp- puyé by a support roller (278) against a strip and pressed against the latter by a roller (279) subjected to the pressure of a spring (fig, 15 ). EMI41.4 26. Machine according to Claim 24 ot or characterized in that the tape roll (271), on the one hand, and the applicator device (273-275) as well as EMI41.5 the support and pressure rollers (278, 2''7), on the other hand <mounted on a lever with two branches (270) rotating around the axis (281) between the walls (280a) of a carriage (280), can be moved away from the part (208) by a spring (282) EMI41.6 and pressed against it by a rocnlcr3uw air device (283, 284) (fie. 15). 27. Machine according to claims 2ta to: fi, characterized in that the carriage (280) provided with ;; ailet.n dt1 control (285) and guide rollers (286) passes on (Ion rails (287), the along the exposed strip (fig. 15). 28. Method for protecting against rust EMI41.7 exposed parts of sheets bearing a coating, characterized in that a tape of synthetic material, to be prepared (! 1Ic <Desc / Clms Page number 42> a self-adhesive tape, is applied, then pressed on the exposed parts (fig. 16-18; 19-20; 21-23; 24-28; 29-31). 29. Machine for practicing the method of claim 28, characterized in that a carriage (323), with conical rollers (320), passes between a rail (319) and the edge (301a) of the sheet (301) and carries a roll of adhesive tape (315), a pre-folding funnel (317), two pressure rollers (318) and a knife (321) for cutting the tape, and in that the adhesive tape ( 315a) is placed by the pre-bending funnel (317) around the edge (30ta), on the upper and lower faces of the sheet (301), and is pressed by the rollers (318) (fig. 16, 17). 30. Machine for practicing the method of claim 28, characterized in that an adhesive tape pressure carriage (327) is guided by conical rollers (320) against upper and lower rails (324), transversely. to the advancement path (328) of a sheet (301) and parallel to its cutting edge, and is driven in a back and forth movement by a cat / not (326), a transmission belt ( 325a-c) and a motor (325) (figure 18). 31. Device according to claim 27, characterized in that an upper cylinder (351a) moving in a slot (355c), on a support (355a) with mounting plates (355b), and a lower cylinder (351b) ) are mounted so that they can be pressed against each other by springs (352), in that an adhesive tape (350a) unwinding from a roll (350) is stretched in front of the gap between the cylinders, in that an ardte (301a) of a sheet (301) placed on rollers (354) of a base (353) can be inserted towards the middle of the adhesive tape and in the space between the cylinders , so <Desc / Clms Page number 43> EMI43.1 Re stick the adhesive tape on the upper and lower sides of the sheet (301) (fie. 19, 20). 32. Device for the ruisa in practice of the method of claim 28, characterized in that in this case in the case of protruding ridge parts or shrinkage (21b, c), EMI43.2 a mouthpiece with clamping jaws (55a, 1 adapted to the edge parts (21b, c) and mounted on a sliding base plate (ka), pre * ;? <- f '!) "H 1e middle a trv. .¯ .: of tape (51) subjected to the pressure of a spring (i; 3), is that the tape (49), drawn from a roll zur), passes through the mouth, above the point of the tensioner (51), and is fixed to a support (52) of which a longitudinal slot (52a) overlaps a bolt (52b) fixed to the plate (46) and keeps the tape taut with a spring (52c) (fig. 21). 33. Device according to claim 32, characterized in that there are provided, next to the tape tendour (51) and at the ends of the mouth, knives (56, 58a, b) whose cutting edge is adapted to the cross section of the clamping jaws (55a, b) which cut the tape EMI43.3 adhesive (49) when 1 '<au, buciiure passes over the sheet (21) (fig. 21-23). 34. Device according to claims 32 and 33, characterized in that the mouth has an angle EMI43.4 somewhat more 1-rztnd than the edge parts (21b, c) t so that the adhesive tape (4y) is pressed aeulp.mnt against the outer points (21d, e) (fig. 21). 35. A method according to claim 28, characterized in that for protecting against rusting of the edges EMI43.5 mines bare of holes (89a) drilled in a plate (89), 0 an adhesive washer (86), placed by <nd <SBouw on the holes (89a), and an adhesive washer (86), pon4e by the. at. EMI43.6 on it, are glued to 1 tt5le (89) and one against the other (fie. 28). <Desc / Clms Page number 44> 36. A method according to claim 35, characterized in that adhesive washers with a larger diameter are first glued to a backing tape (85) with holes (85a) concentric with the holes (89a), in that a backing strip is stretched above and below the holes (89a), and in that the adhesive washers are cut out from the backing strip and pressed against the sheet (89) (fig. 25-28). 37, Machine for practicing the method of claim 36, characterized in that the pierced part (89) (89a) is held on spacers (90) above a lower die plate (87b) ) and punches (87a) and below an upper die plate (87b) and punches (87a), and in that two support tapes carrying adhesive washers (86), respectively stretched below the lower plate and above the top plate, can be pulled in successive passes of feed rollers (85) by take-up rollers driven by a motor or by a spring. 38. Machine according to claim 34, characterized in that the adhesive washers (86) are pierced with a hole (86b) and in that the punches (87a) are provided with a retaining head (87d), subjected to the pressure of a spring (87c), and a rubber ring (87e) surrounding it (fig. 26-27). 39. Method, characterized in that for the protection against rust of the exposed edges of holes (89a) drilled in the sheet (Si, the outer part of an adhesive ring (104) is first glued at the edge of the hole, then the inner part of the baue is folded back into the hole and, finally, pressed against the other side of the sheet (fig. 29-31). 40. Device for putting the procedure into practice. <Desc / Clms Page number 45> EMI45.1 dice of the. claim 39, characterized in that a compressed ir crl3tdst (102), mounted on a support rod (101), EMI45.2 receives with a certain offset an ila3tiquo cylinder (10 ') comprising a thick-walled support part (103a) a thin-walled part (103b) which can bulge out, with a diameter fitting the hole (89a), and a * solid-walled point (103c) capable of flexing by insertion into the hole in the sheet (89), and by supporting its part (103b) EMI45.3 and compressing it with the trinc18 antaon3, ai.e (107), 1 "outer part of the elastic cylinder can be pressed with its inner part against the sheet (89) (fie. 10-31) - 41. Method for protecting exposed parts of coated sheets against rust, character- EMI45.4 terized in that in the exposed parts (444c), tapes (481, 502) or cords (511, 534, 541) are heated at the same time as the neighboring coverings (444n, b) and brought to welding temperature, then compress (fig. 32, 33-35. 36, 37, 38 and 39). EMI45.5 42. The method of claim 41, characterized in that the average bare welding temperature of infrared ray radiators (4s8, 4su) (rig. 32) is obtained. 43. Machine for carrying out the process of claim 42, characterized in that infrared ray radiators (488, 489) protected by (] or% tales are arranged in front of each of the taut welding tapes ( 481) and in front of each of the parts to be covered with a tape of the upper and lower coverings (444n, b) of the sheet (444), and in that, when the welding temperature is reached, the sheet (444) is thrust, under the control of a thermostat, by means of an electromagnet by EMI45.6 example (491), against the tape (h81), then ott 3n 1µv <la between two rolls of a pair (484, 48 * t) and 81) \) d, o (thread, -. 32). <Desc / Clms Page number 46> 44. A method according to claim 41, characterized in that the welding temperature is obtained by means of a hot air blower (507) (freeze 33-35 '36,37). 45. Machine for practicing the method of claim 44, characterized in that a hot air blower (507) with upper and lower outlet nozzles (507a, b) is placed on a carriage (500). ) passing against the cutting edge (444c), with a roll of welding tape (501), a pre-bending funnel (504) and pressure rollers (505, 506), and in that the nozzles extend along the edge of the sheet (444) to be welded, with their exit directed towards the pre-bending funnel (fig. 33-35). 46. Machine for practicing the method of claim 44, characterized in that, for welding a bead (511), a pressure roller (512), a pair of forming rollers (513a, b) and a pair. pressure rollers (514a, b) are placed on the carriage (500) (fig. 36, 37). 47. Machine according to claim 45, characterized in that the hollow cylinders (484, 485) and the coating parts adjacent to the welding zone are cooled by cooling plates and tubes (496, 497) (fig. 32, 33-35. 36, 37). 48. A method according to claim 41, characterized in that the welding temperature is obtained by means of electrically heated shaped pieces (545) (fig. 38, 39). 49. Device for carrying out the method of claim 48, characterized in that, in the case of a wedge gap formed by abutting folds (531a, b) of a sheet (531) , we can insert in the corner a shaped piece (545) that fits, electrically heated- <Desc / Clms Page number 47> EMI47.1 ment and provided with a groove {51r5s3) for a piece (53h) of weld bead, and in that a place of form {5ta 5 j is guided against a support plate of the place to be treated and can be inserted in the corner by means of a hand lever (537) mounted on this plate (fin. 38, 39). EMI47.2 50. Device according to claim 4i) is characterized in that it is possible to press and weld on the outside of the corner a piece (541) of weld seam, by means of a hot air device (542), d a pivoting piece (544) and a hand lever (543). 51. Device according to claims' SA to 50, characterized in that the visible faces of the coating EMI47.3 (531a, b) are cooled by back tubes (533u, b) where water circulates (fig. 39). 52. The method of claim 3, cuructured in that in the case of a sheet (609j being EMI47.4 in a production line, a lutornntic device (62it) pushes the spawning apparatus attempt (6X6) against) the sheet (609a), triggers the sudden movement and again provokes the recoil of the apparatus ( rit ,. 40-43). 53. Machine for carrying out the method of claim 52, characterized in that the pushing device consists of a housing (629) whose wall EMI47.5 rear (629> porte J * thrust member (627, 65, t; 513 of which the central part (629b) forms chambers for soft return springs (630) and of which the xfic6riouro part (629c) strong..e a guide for a drawer (626) carrying the device (the trai * e: .. ent (623, 636, IjfJo-61J2, 650-653), in c'1 finn lnrs return springs (630) hanging on to a fallback "(626a), and in that the thrust device must be entered h'H.ch6 by the descent on an int-erruptour (6211) and triggered by the encounter of the milking device with a switch (632) (fix, ho-43). <Desc / Clms Page number 48> 54. Machine according to claims 52 and 53, characterized in that there is provided, as a thrust member, a compressed air cylinder (627a), the piston (627b) of which advances the treatment apparatus (fig. 40, 41). ). 55. Machine according to claims 52 and 53, characterized in that there is provided, as a thrust member, an air chamber (644) which can be inflated (fig. 42). 56. Machine according to claims 52 to 53, characterized in that there is provided, as a thrust member, an electromagnet (654) which advances the treatment apparatus by means of a lever with two branches ( 655a, b) and push bars (656) (fig. 43). 57 'Machine according to claims 52 to 56, characterized in that there is provided, as treatment apparatus, an applicator device consisting of a sponge on U (623u) placed around a support (624), a chamber (626c) for the sponge with elastic slotted rods (626b), lined with a felt (631), and a container for the varnish (625) (fig. 40). 58. Machine according to claims 52 to 56, characterized in that there is provided, as treatment apparatus, a drying device (636) comprising an outer tube (636a), an insulation (636b) and an inner tube ( 636c) forming a mouth (626b) to receive a sheet metal edge (609a) provided with a coating, in that the air enters through openings (634), is heated on contact with heating bars (633), brings closer to the sheet thanks to the presence of guide plates and escapes upwards and downwards through holes (635) (fig. 41). 59. Machine according to claims 52 to 56, characterized in that there is provided, as processing apparatus, a tape wrapping device consisting of two separable clamping jaws (641a, b) installed in <Desc / Clms Page number 49> a drawer front chamber (626), and two inflatable air chambers (642) for tightening an adhesive tape (640) which, upon advancing the device, is torn from the backing tape (640a) and wrapped around it ridge (fig. 52). 60. Machine according to claims 52 to 56, characterized in that there is provided, as treatment apparatus, an applicator device with an endless ribbon (650), provided with a sponge, which, under the control of a motor (651), passes around guide rollers (652) goes up: 'in the drawer (626) and is supported the Ions of the annuity, for the insertion of the edge (609a), by a sheet metal rod (653 ). U-shaped. subjected to the pressure of a spring. 61. A method according to claim 3, characterized in that for protecting against rust the shaped pieces of sheet metal provided with a coating. for example a car door comprising an outer wall (117b) and an inner wall (117a), all the edges (117c) are coated by means of a single varnishing device (114) (fig. 44, 45). 62. Device for carrying out the method of claim 61, characterized in that the varnishing device extends over the ridges (117c), along and around them, and consists of a container ( 114a) with perforated bottom (they), a mouthpiece (114b), adjustment screws (118) and an absorbent material (116) filling the mouthpiece and having a triangular slot (116a) at the bottom to receive the ridges (117c) ) (fig. 44). 63. Next arrangement. the demands! ' 61 and 62, characterized in that the absorbent material (116) has a narrow gap (116b) for embedding the edges (117d, e) stripped for spot welding. 64. A method according to claim 28, characterized in that, in order to protect the parts from rust <Desc / Clms Page number 50> shaped such as a car door (117) for example, the arched edges (117f) are covered with self-adhesive tape (145), by means of a marginal coating machine (122-130) guided by rails (120, 121), in that the rectilinear edges (117g) are covered with the same self-adhesive tape (145) by machines (146-147) extending it, and in that all self-adhesive tapes Applied adhesives (123a, 145) are adhered by means of a pressure device (150-153) extending along the ridges (117f, g), around them. 65. Ribbon wrapping machine for carrying out the method of claim 64, characterized in that a carriage (122), guided by rollers (131) on an upper rail and a lower rail (120), of cross section in C, extending at a certain distance from the curved edge (117f), can be moved by means of a motor (132) attached thereto, with control by upper and lower friction rollers ( 132a, b) traveling on a rail (121), in that it is mounted on the carriage (122), with an axis (126), a lever with two branches (125), one of the branches (125a) of which carries a roll of adhesive tape (123) and the other branch (125b) of which carries tape guide rollers (127a, b), a tape support roller (128), a severing knife (130) and a tape folding roller (129), in that the two-arm lever (125) can be lifted and pressed against the edge of the workpiece (117) by a compressed air cylinder (134) with a piston (135) and a return spring (136), in that at the beginning of the rail (120), a pressure switch (140) is installed which allows the passage of current and compressed air for the carriage (122) when the machine descends on the workpiece (117), and in that at the end of the rail there is provided a pressure switch (141) which inter- <Desc / Clms Page number 51> EMI51.1 interrupts the supply of compressed air and reverses 10H p / \ 1o, "of the engine (132) for the recoil (fll'tlrH.f1 1W¯4 '. 66. Machine for extending iiii rulzr following. The method of claim 611, citrtcttrimé (il that an adhesive riiliiiii (1115) is ilc; eirible by bars.-ea (1! i "riy with a support rut3an (145a), of may> iér <t 1, lintivoir- Iliiii 1'I (; l'tIrer easily-, in this clue the two rut'a't me d4ri) iilctit d'uaao bobiiie (1146) to pass nu-desfllIl4 de 1 r; arAte (117l) ric, 1 st piece where the tape adhesii '(11J') is l4úl '\ r' by the c! 3 rsizctn i. tif of pro88ion, Lanfiis that the tape does itàpl) ot-L (Ilirilt) Winds me in passes Muccel4siv'1'1 on a rotil-itti receptor (11IH) COIIUlU1dl by a motor (t117) or a rex> or ', ml)' Iril (i'it; slit). 67. Device of prasyiors for j setting ') It prutlque of the process of revormlicuitirn lrll, c1lrrtl: tJ! RlIH 1, ii you are a frame (1-) 4), e'étonditnt aU-, l (H \! JIU'1 and. Around <1 <as arA .. Les (11 ft Er) (le la piii <; <: (117), loss two sts: lrhrti r <sn do verriiitc (i j0) being able x'6cnrLor one of t''utr ':, of which t' a .., (1 '; 0 ..) leans' * against a j> 1;. <: <. in CIJOHtcl! fJ'H' (the II), L <;; dLs <kills the other 1) Olj) can t tl t rtt pr /! MH '' '1} 11' lU '"t-JZ .., si.rst' a <tir 'ff) ld'lid'l1 (152), < #t ert what te r.srlrn (1) 11) nvoc le'- '1: \.' \ chotrIJR (l'50) can hear Mur lrsn arl '! l,.,. M (117r-f) where ; 0 r '/ Il';: l1 ur !! trsJJ '(111;') '' stretched itu-d'nt: i \ 1ft den '1! .T.61'1' 3rr-rChss du r 1> afi de .support (11. ') ,,) fear 11t1'r. fJl1f! <t] # d,; ":' 4 !!!" 'doa arAtes and prRnrsf against <; ol l n - <; 1 ( i3 (,, 50, 'il).