BE380811A - - Google Patents

Description

       

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  "Machine for forming the metallic fabric."
The invention relates to a machine for forming the metallic fabric and more especially the square or rectangular mesh fabric formed by at least two separate series of metallic threads arranged at suitable spacing and which intersect at right angles or at a little. near; these series of threads will be referred to hereinafter as “line” threads and “stop” threads respectively; the former generally constitute the longitudinal threads of the finished product, fence or the like, while the latter generally constitute the vertical threads thereof.

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   The invention relates more particularly to a machine of the above type, intended to form the metallic fabric described above, the intermediate line yarns of which are assembled with the stopping yarns, at the points of intersection, by organs. separately attached wire locks or ties which are formed around the two sets of intersecting wires, while the ends of the stop wires are wound around the outer line wires which will be called ci - rough "margin lines".



   The object of the invention is to provide a machine of the type in question, which is much more efficient than similar machines used up to this day for the same object; which is also faster, so that metallic fabric can be made with it at market prices, while at the same time the product which it gives has a longer life and better withstands the requirements to which it is required. submitted, that the metallic fabric made so far.



   Another objective of the invention is also to produce a machine the various operating parts of which are easy to manufacture and the cost of which is consequently reduced to a minimum, while at the same time the efficiency of the machine is increased.



   Other objects of the invention will become apparent from the description which follows.



   The invention consists of a machine of the type in question; this machine comprises members serving to guide and inserting the line wires into the machine, members serving to feed given lengths of stop wires through the line wires, members serving to feed the wire or them. fila intended to form the separate wire ties of the intermediate line wires and stopwires which abut the latter and members to form these ties simultaneously.

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   The invention also relates to a machine of the type in question, provided with members serving to introduce the stopping threads directly between dies or similar members serving to form the fasteners in question, while the ma- trices are open.



   Another characteristic of the invention is that the stop wires are sent in the transverse direction directly between the dies or members of the same type serving to form the fasteners.



   The invention also comprises a method of introducing the stop wires into the position in which they intersect the line wires, and which consists in introducing the stop wires in a transverse direction directly between the dies or organs. of the same kind used to form the fasteners when the masts are open.



   The invention then relates to a machine of the type in question, which is provided with guides for supporting and directing the parts of the stopwires between the dies or the like, and which can be set in motion. to allow the stopping threads to be brought into the operating position, between the dies or members of the same type9 for the purpose of the weaving operation and also to allow the fabric to be fed after the successive shaping operations.



   The invention also consists of a machine of the type in question, which is provided with members for positioning lengths of wire, of determined length, to form the metallic fabric, and for cutting the wire into sections of lengths. determined during the introduction of the thread.



   The invention also relates to: a machine of the type in question, provided with members for feeding the thread, for forming the stopper threads of the fabric and for cutting the thread into sections of predetermined lengths and members for introducing successively the sections of lengths determined in position for the formation of the fabric; on organs serving to introduce and. cut a length

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 or lengths of yarn for the purpose of forming metallic fabric or for any other use, and comprising means for introducing the length or lengths of yarn and for cutting them into specific sections without stop feeding the wire;

   on members serving to introduce and cut a length or lengths of thread for the purpose of forming metallic fabric or any other use comprising means for the continuous introduction of a thread longitudinally or in any other direction required, at speed constant, and to cut the yarn into given lengths while this feeding movement is being accomplished and means for resuming the feeding of each length of yarn after it has been cut and serving to feed it to a speed greater than the initial feeder, so that the lengths of wire are fed successively at predetermined intervals;

   on a machine of the type in question, provided with members serving to continuously move a wire and to measure it longitudinally, at constant speed and to cut the wire into determined lengths without modifying said measuring movement of the wire and provided with feed rollers which grip the end of each length of wire, as soon as it is cut; the rolls in question cut each length at a speed greater than that of its measuring movement, in order to leave intervals in the feeding of the successive lengths. of duration equal to or greater than the "closed" period of the locking dies or similar members, while one of the lengths of wire which have been cut is attached to the line wires or to the others fabric threads;

   on a machine of the type described, provided with members by means of which the stop wires can be brought into position across line wires substantially across the width of the machine and in such a manner that the stop wires are debited di-

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 directly between the dies' or members of the same order, to form the wire ties assembling with one another the stop wires and the line wires which intersect; on a machine of the type in question, provided with members able to act on the line wires when the latter are fed through the machine, so as to give a spiral or sausage shape to the wires, which gives the finished product a helical shape;

   on a machine in accordance with the preceding paragraph, in which the components in question comprise a series of rollers arranged in offset relation and where. devices are provided to vary the angular position of one or more of these rollers with respect to the other or to the other rollers, - also on a machine in accordance with the preceding paragraph, in which the axes of said rollers are inclined. on top of each other;

   on a machine of the type in question, in which the members which serve to feed the line wires through the machine comprise a rotating aerial drum provided with a series of grippers arranged in a ring which can be put into action successfully - if so while the drum is rotating, preferably such that more than one series of grippers on the side of the drum remote from the feed side of the machine are running at a time; on a machine in accordance with the description of the previous paragraph, in which said series of grippers are controlled by a cam (preferably by a fixed cam with which the gripper control members collaborate), so as to capture and to abandon the children at the right time;

   on a machine conforming to the preceding paragraphs, provided with devices for periodically lowering the drum with a view to stopping the feeding of the line wires during each

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 the machine, to supply a stopper wire to the series of line wires; on a machine conforming to the preceding paragraphs, in which the drum in question is actuated by a continuously running chain or member of the same kind, and in which members are provided to catch up with the balant of the chain when the drum is lowered; on a machine in accordance with the preceding paragraphs, in which are provided members, preferably actuated by said chain or by a member of the same order, serving to correctly bring the line wires into said holders;

   on a machine in accordance with the preceding paragraphs, in which the drum in question is rotatably mounted on a structure which supports it (preferably comprising a pair of vertical or substantially vertical axes, arranged at a rate of one at each end of the drum) and which can be put into action periodically, such as for example by a cam or by cams, so as to cause the downward and clockwise movements of the drum; on a machine according to the preceding paragraph, in which said structure is controlled by one or more cams carried by or controlled by the main shaft of the machine, that is to say by the shaft carrying the members which serve to order tie trainers, etc .;

   on a machine conforming to the preceding paragraphs, provided with members for forming several hooks and for then bringing its hooks into the required position so that they overlap the stop threads, at the points of intersection of these with the threads of line, and provided with dies which serve to shape the final attachment by forming the hooks in question around the threads which intersect;

   on a machine of the type described, in which each of the hooks

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 in question is formed by the combined actions of a slide and a movable anvil, and another slide can be brought into play when a hook has been formed, so as to push said hook into the die, members being provided to activate said parts in an exact and determined order ;! on a machine conforming to the preceding paragraphs, in which the dies comprise fixed parts and movable parts and organs are provided to move these latter parts with a view to making them collaborate with the fixed parts of the die and thus complete the dies for the formation of the hooks;

   on a machine in accordance with the preceding paragraphs, in which each anvil and its respective slides serving to form the hooks and the parts of the dies which serve to transform these hooks into wire ties, are carried by an element arranged according to at a certain angle or by elements arranged at a certain angle and a series of these elements are housed preferably horizontally and transversely through the machine, at a certain spacing corresponding to the distance which must remain between the line wires, on a machine according to the previous paragraphs, in which the loops of the hooks pass above or below the stop threads and the dies form the branches of the hook below or above (in front or behind)

   neighboring line wires and around the stop wires on the side of the line wires away from said loops in order to complete the tie on a machine in accordance with the preceding paragraphs, in which the series of hooks are moved in a sensi plane - completely at right angles to the plane of the fabric and making a certain angle / with the stop threads, an angle preferably close to 40 to 45 degrees;

   

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 on a machine according to the preceding paragraphs, intended to produce a metallic fabric, in which the cheeks of the line yarn grippers can be adjusted in position in their guides on said drum, so as to be able to adapt to variable spacings of the line wires; this result is preferably achieved by arranging the cheeks of the takers so that they can accommodate the minimum spacing of the line spacers and by providing tubes or other suitable members which can be interposed between the pairs. gripping cheeks in order to give other spacings, which may be necessary, to the line wires;

   on a machine conforming to the previous paragraph provided with organs in the form of screw adjustment for example, to prevent excessive transverse displacement of the gripping cheeks which would bring them out of alignment with the line wires during the following revolution of the drum ; on a machine conforming to the preceding paragraphs, provided with members serving to control the slides of the moving parts of the dies in series and in unison, said members consisting for example of a toothed rack or tension bar forming a right angle with the slides;

   on a machine conforming to the preceding paragraph, in which the toothed racks or traction bars are used to actuate the slides, to form the hooks and to introduce the latter into the dies; on a machine in accordance with the preceding paragraphs, in which one of the racks, several racks or all of the racks actuate said slides by intermediate members which may yield when excessive forces are felt on the operating parts;

   on a few. machine in accordance with the preceding paragraphs, in which the pulling bars are provided with toothed sections connected

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 Tied to the bars by members which yield under an ex. ceasing force, such as for example by pins which shear when an excessive force is felt on the toothed part or on the toothed parts;

   on a machine according to the preceding paragraphs, in which use is made of connecting rods to connect said slides to the drawbars with a view to actuating them, the connection between said connecting rods and the slides consisting of members which yield under the effect of excessive stress, such as, for example, pins which shear when excessive stress is felt on these parts; on a machine in accordance with the preceding paragraph, in which said slides are controlled by toothed traction bars, or directly. or by means of lace or other articulations, the bars in question preferably being under tension;

   on a machine conforming to the preceding paragraphs, provided with a member, for example a rack, which can act simultaneously on the anvils which form the hooks or closures; on a machine conforming to the above paragraphs, fitted with organs serving to cut lengths of threads to form the hooks; the members in question preferably comprise a series of pairs of friction clutches, which can be put into action successively so as to move a length of wire determined in advance in a position in which the guide which forms the hook can come into play to form the latter; members are provided for cutting the successive lengths of yarn brought into this position before the operation of forming the hook;

   on a machine in accordance with the preceding paragraph, in which the threads intended to form the hooks can be lubricated by the fact that they are moved past rollers supplied with lu-

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 lubricant from a suitable tank of the machine; the lubricated hook is then used to lubricate the parts which form the hook and the fastener; on a machine conforming to the preceding paragraphs, provided with members serving to twist the stop threads around the chain threads; on a machine according to the previous paragraph, in which the torsion members can rotate rollers or other suitable members in order to introduce the stop wires across the line wires;

   on a machine in accordance with the preceding paragraphs, provided with members which can be put into action at suitable times, so as to deflect the ends of the stopper wire in the path of the active pieces of the twists; on the combination of some of the characteristics or all of the characteristics referred to above in a machine for producing metallic fabric, particularly of the type described above and also which has other characteristics which may be incorporated into such machinery or used for other purposes; these characteristics refer in particular to a winding drum which, in the case of the machine in question, facilitates the removal of complete rolls of fabric;

   a motor (preferably electric) for operating this drum, the speed of which decreases with increasing resistance to torsion of its weight as a result of the increase in the dimensions of the roll of metal fabric; spools used to hold the rolls of wire used in the manufacture of metallic fabric or for any other purpose; a set of reels or the like particularly in conjunction with the machine provided in accordance with the invention and also members for recording the quantity of tissue or other material produced by the machine, said members preferably being

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   rence associated with organs that signal when a quanti ,. determined tee of material has been produced.



   Figure 1 is a front elevational view of one form of machine according to the invention.



   Figure Z is an end elevational view of the machine shown in Figure 1; this figure also shows the winding mechanism of the fabric made.



   Figure 3 is a partial view of the mechanism which is used to operate the dies; this figure also shows the right twist.



   Fig. Sa is a partial plan view showing other dies and another control mechanism thereof as well as central twists and the left twist.



   Figure 4 is a cross section through the die control mechanism and associated parts shown in Figures 3 and 3a; this figure shows one of the line yarns and also one of the hook yarns; the pair of matrices shown in this figure is open.



   FIG. 5 is a partial plan view showing a pair of dies in the open position.



   FIG. 6 is a partial vertical section of the hook forming mechanism, taken in the direction of the arrow !. of Figure 5, and showing the hook-forming couissau in the advanced position in which it has cut part of the hook thread.



   Figure 7 is a detail view of the hook forming mechanism. Figure 8 is a section taken along the line C-C of Figure 10.



   Figure 9 is a section taken along line B-B of Figure 10.



   Figure 10 is a partial plan view. on a larger scale, similar to fig. 5, but showing the closed dies and the hook former in the advanced position.

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   Figure 11 is a vertical section taken along the line A-A of Fig.10.



   Figures 12 and 13 are detailed views showing the hook forming mechanism in different operating positions.



   Fig. 14 is a detailed view showing an alternate anvil shape by the hook forming mechanism.



   Figure 15 is a view analogous to Figure 14, but showing the anvil in its normal position, ready for hook formation.



   Figures 16, 17, 18, 19, 20, 21 and 22 are views showing the various cams employed in the machine.



   FIG. 23 is a detail view of the guide of the upper stopper wire and of its operating mechanism, which are shown in part by FIG. 4.



   Fig. 24 is a view of Fig. 23, viewed in the direction of arrow b.



   Figure 25 shows the form of interlacing produced by the maohine according to the invention.



   Figures 26, 27, 28 and 29 are detail views showing the dies.



   Fig. 30 is a partial plan view showing some of the line wire extruders.



   Figure 31 is a vertical sectional view, on a larger scale, of the hook wire feed mechanism.



   Figure 32 is an elevational view of Figure 31.



   Figure 33 is a section taken along line D-D of Figure 31.



   Fig. 34 is a partial end view, partly opened, showing the extruders for one of the line wires; this figure also shows one of the hooked wires and the arrangement that can be made to lubricate it.

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   Figures 35. 36, 3% and 38 are views showing the line wire extruders; Figure 35 is an end elevational view, Figure 36 is a front view) Figure 37 is a partial horizontal sectional view taken along line EE in Figure 5 and Figure 38 is a partial horizontal section performed along line FF of fig. 35.



   Figure 39 shows a basic variant intended to carry the extruders of the machine.



   Figure 40 is a partial section of the tambou, r measurer.



   Figure 41 is a partial side view of the measuring drum.



   Figures 42, 43 and 44 show details of the measuring drum.



   Figure 45 is a vertical sectional view showing the take-up drum for the fabric made and shows the drum in the extended position.



   Figures 46, 47, 48 and 49 show details of the winding drum.



   Fig. 50 is a partial plan view showing the left twists.



   Figure 51 is a vertical cross-sectional view taken along line G-G of Figure 50.



   Figure 52 is a vertical section taken along the line H-H of Figure 50.



   Fig. 53 is a horizontal sectional view showing a detail of the control of the left twists.



   Fig. 54 is a detailed elevational view of the stopwire taker.



   Fig. 55 is a partial front elevational view showing the straight twists.



   Fig. 56 is a partial elevational view showing the central twists and the knife.



   Fig. 57 is a partial plan view of Fig. 56.

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   Figure 58 is a vertical section taken along the line I-I of Figure 57.



   Fig. 59 is a front elevational view of the mechanism employed, in accordance with the invention, for cutting determined lengths of yarns and which can be used to introduce determined and cut lengths of stopping yarns into the conforming machine. according to the invention, to form metallic fabric.



   FIG. 60 is a partial view, partly in section, of the left side of the mechanism represented by FIG. 59.



   Figure 61 is a vertical section taken along the line J-J of Figure 59.



   Figure 62 is a partial vertical section taken along the line K-K of Figure 60.



   Fig. 63 is a partial horizontal plan view of the mechanism shown in Fig. 59.



   Figures 64, 65 and 66 are detailed views of the knife of the feed mechanism shown in Figures 59-63, while Figure 66 is a section taken along line L-L of Figure 64.



   Figure 67 is an enlarged sectional view showing the wire gripped in a pair of hinges of the feed mechanism.



   Fig. 68 is a partial section showing the mechanism used to modify the space between the stop wires.



   Fig. 69 is a sectional view showing the main camshaft for controlling the dies and other mechanisms of the machine.



   Figure 70 is a front view, on a larger scale, of the mechanism shown in fig. 68.



   FIG. 7l is an end view of the counter mechanism according to the invention.



   Figure 72 is a side view of Figure 71.

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   Figure 73 is a view, partly in section, taken along the line M-M of fig. 72.



   Figures 74 and 75 show details of the counter mechanism.



   Fig. 76 is a plan view showing the set of coils according to the invention and used in conjunction with the machine to form the metallic fabric.



   Figure 77 is an elevational view, partly in section, of Figure 76.



   Figure 78 is a section through Figures 76 and 77.



   Figures 79 and 80 are elevational and plan views, respectively, showing an improved form of coil according to the invention; these coils are shown schematically in Figures 76 and 78.



   Figures 81, 82 and 83 are views showing a preferred form of coil according to the invention.



   Fig. 84 is a view, partly in section, of one form of main clutch of the machine preferably adopted. This clutch is generally indicated in figs. 1 and 2.



   In one of its convenient embodiments and in its application, by way of example, to a machine intended to make metallic fabric, of the type described above, the frame of the machine comprises vertical elements 1 (FIGS. 1 and 2) mounted on parts 2 and! type tables, upper and lower; the upper element serves as a table for carrying elements of the control mechanism to be described, including a series of wire tie formers, arranged in a horizontal plane, which can form a series of thread tie and at the same time assemble the line of intersection and the stop threads and which are indicated by the references 4 and 5 respectively, in fig.l.



   The tether trainers in the series are the mons in every way, and therefore it will suffice to describe one.

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   Each tie trainer (figs. 3, 38, 5,10 etc.) has a carrier consisting of an angular, box-like cast iron part, one of whose arms, the arm 6 makes a substantially right angle with the table, while the other arm, arm 6a, makes a certain angle with arm 6, an angle close to 130 to 135, so that the hook, formed in arm 6a is introduced into a die to form the attachment of the son 18 at an angle preferably close to 40 to 45; it is understood, however, that the arrangement of these parts does not necessarily have to be that which has just been described.



   The die is constituted by a fixed part 7a and a movable part 7b (Figures 86 to 29) located at the junction of said arms; part 7a is assembled with arm 6a and part 7b is carried by arm 6.



   The assembly between the carrier and the table 8 is preferably such that the first can be easily adjusted, so as to ensure any desirable spacing between neighboring carriers, depending on the distance that one wishes to leave between the son line.



   The arms 6, 6a are assembled for adjustment by their ends with bars 150 assembled in turn with the sides of the table; in these arms are formed openings 8, at a distance. for example at a spacing of half an inch or more, so that the po rteur can be releasably fixed to the table, for example by means of movable wedges 9, and can be easily adjusted to any spacing required.



   The member which serves to form a hook and to introduce it into the die (figs. 6, 8, 9, 12 and 13), is carried in the arm 6a of the carrier and comprises slides 11 and 12. The slider bucket 11, together with an anvil 13. which can be moved by an intermittent back and forth movement in a horizontal plane, serves to form hook 10. after which the other slide 12 , located on one of the sides of slide 11 and which can

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   Being moved beyond the anvil, after the slide 11 has been moved to form the hook around the latter, comes into play to push the hook which has just been formed in the die parts 7a, 7b.

     1,? Member which is used to control the sliders whose questions and also the anvil, will be described later.



   The face of each fixed die part 7a (figs. 36 to 29) adjacent to the slide 12, has an oblique opening 14 which is located in this die part located in the alignment of the slide 12. In the collaborating faces of the two die parts 7a and 7b, there are formed grooves 15, 16 forming a right angle with each other and which can receive respectively the stop wire and the line wire; grooves 17 are formed in the faces of the die parts together;

   these grooves are shaped and arranged so that when a hook is introduced into the closed die. it is curved around the line of intersection and the stop wires, so as to produce the wire tie 18 which unites the stop wires and the line wires.



   The movable parts of the die 7b are connected to the sliders 19 (figoll) which are arranged to perform a sliding movement in the arms 6 of the supporting elements; said slides are arranged so as to be controlled in series and in unison by a bar 20 (fig.3a) which can be controlled at right angles to the slides 19 and which is preferably arranged so as to act under tension , while the slides 19 are actuated directly by the bar or by intermediate members such as, for example, by adjustable rods 21;

   the connection between these connecting rods and the sliders 19 is preferably constituted by pins 22 which shear when an excessive force is felt, thereby preventing the active parts from being damaged.

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   The slide 11, which is used to form the hooks, is controlled by a toothed rack or bar 23 (fig. 3a) arranged in a plane parallel to the aforementioned bar 20 and the latter can act directly on the pistons 11 at the desired times. or can actuate the latter by an intermediate mechanism similar to that previously described with regard to the pistons of the dies.



   The slides 12, which serve to push the hooks formed in the respective dies, are controlled by the bar 150a with which they are in relation by the adjustable joints 150b. Said bar and the toothed bars in question are controlled by cams which will be described later.



   When the racks 23 act directly on the die and on the hook forming slides, it is preferable to use toothed sections 24 to control these slides. These sections are connected to a solid bar via, for example, pins which shear when excessive stress is felt on the parts, thus preventing their deterioration.



   The wire which is used to form the hooks is designated by the reference 25 (figs.4 and 34); it is debited by suitably disposed coil supports, which will be described later and is brought into the operating position by hook-forming slides; Devices have been provided to guide the hooked yarn into position and to cut determined lengths of yarn successively as it is fed.

   The cutting operations are done in advance of the hook forming operation, or the cutting may be done partly in advance of the hook forming operation and partly simultaneously with the start of the hook forming operation. hook formation; in this case, we form on the front edge of the slide

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11 a sharp edge which, when the slider moves, is brought into connection with a nozzle 27 through which the thread is fed into the hook-forming mechanism and cut.



   A strip of wire to. hook, cut so as to form a hook, is designated by the reference 10a in Figures 6 and 7; this piece of wire is supported at three points, namely by the upper edge of the slide 11, the edge of the nozzle 27 and by a reduction formed in one of the sides of a spring plunger 10b carried by the slide 11.



   The organs which are used to cut the hook threads (there is obviously a series of lengths of hook threads that are introduced in the series of tie formers), can consist of a toothed bar or rack 28 (figures 30 to 33) actuated by a crank and a series of toothed slides 29 which mesh with said rack; each of said slides carries a gripping or friction clutch 30 comprising, for example, three or more balls 31 (hardened if necessary) disposed in a conical hardened nozzle 32; the hook thread passes between these balls and is gripped and debited by them when the sliders 29 are actuated.

   A similar series of fastening or friction devices is arranged above said fasteners and in alignment with the feed of the hooked wires (which are preferably introduced in the vertical direction (, and this series can come from grasp and hold the wire during the return stroke of the sliders 29, the other series of locking devices or friction clutch devices is designated by the reference 33, in fig. 31.



   The crank which is used to control the bar 28. is designated by the reference 34 (fig. 34) and the length of the hooked wire or the movement of the calipers 29 is adjusted by adjusting the radial position of said crank.

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   The hook threads are preferably lubricated by rollers 35 (Fig. 34), which operate in an oil reservoir 36 so that the lubricant is supplied by the threads to the various parts of the machine which are thus lubricated.



   As stated previously, the lengths of the son with hooks which have been cut are transformed into hooks by the action of the slides 11, in collaboration with the anvils 13. the latter are arranged so as to take a movement of back and forth in the path of the slides 11, via eccentric pins 37 for example (fig.9). which engage in the anvils and are carried by a shaft 38 which also carries a toothed wheel 39;

   the latter is controlled by a toothed bar or rack 40 (figs.3, Sa); the arrangement and operation of these parts are such that the anvils are withdrawn from their respective fastener-forming parts, when the hooks have been formed, so as to allow movement of the sliders 12 which push the hooks formed into it. matrices,
In a variant, the bar 40 is omitted and the carriage 11 has a cam surface 40a which can operate a piston controlled by a spring, carrying the anvil (figs.14 and 15).



   In this variant of the invention, a slight bevel or a cam surface can be provided on the front contact edge or on the hook-forming slide which acts to push the latter back until the hook, pushed by the motor slide, can pass the anvil and, by acting on the bevel, push the anvil completely out of its way.



   As regards the feeding of the line wires and the stop wires through the machine, this is carried out as follows: for the line wires, by grippers carried by a rotating drum 42 located at a higher level (figs.l and 2); for

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 the stop wires, by the part 43 (fig.1) which cuts uniform lengths, determined in advance, of stop wire supplied by a spool and which debits the lengths thus coded successively, directly into the dies. The line yarns are arranged in the machine at the desired spacings and pass between the dies and a stopper thread introduced between the dies and up to the line yarns before the formation of the hooks, as will be understood. by the description above.



   The line wires come from spools, which will be described later, and are led from the latter by tubular guides which bring the wire below the base of the machine.



  The lengths of wire, after leaving these tubular guides, are preferably conducted by a series of devices which act to impart a helical shape to the wire, which also gives a helical shape to the finished product.



   The series of winders can be conveniently located immediately behind the hook wire feeders; they consist of series of rollers 44 arranged vertically (figs. 34 to 38), and the rollers of each series are arranged in offset order and preferably their axes are inclined on each other, as shown these figures.



   The rollers are carried by supports 45 preferably rotatably mounted, so as to allow them to rotate freely during the extrusion operation and to remain stationary during the period of formation of the thread ties. preferably the application of a tension effect such as to make it possible to catch up with the balant of the threads immediately before the threads are gripped by the dies; in this way it is certain that the spacing between the parts of the line yarns, included between adjacent stopping yarns, is uniform.



   Devices are also provided for modifying the value of the displacement of the extruding rollers, so that it is possible to precisely control the extrusion of the line wires. These organs

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   comprise, for example, a helical screw 46 and a toothed segment 47 which engages in the screw and associated with one or more rollers of the series, so that by making this screw and this segment act, it is possible to modify the position angular rollers associated with it as desired.



   It is also possible to take the necessary measures so that the series of extruders are animated by an imperative rotational movement, at. using, for example, a light chain; however, the normal rotation of the extruders takes place under the effect of the traction of the line wires when they are fed through the machine.



   The intermediate extruders can be moved from the center line, towards the end extruders, preferably in a position towards the dies, so as to impart a spring action to the combined yarns 4, 5 when opening the dies after a cutting operation. formation of ties, which tends to eject the intersections of the just-tied fabric, out of the fixed dies, this arrangement of the end extruders also facilitates the threading of the tie-off threads across the threads of line according to a method by which the stop wires pass behind the margin wires 4a and in front of the intermediate line wires or vice versa; however:

   deflector plates can be provided to ensure this setting out of relative position of the line wires and to facilitate the threading of the stop wires in the manner which has been described.



   The line threads are held by the takers 41 of the drum, and the drum begins to rotate after some of the fabric has been completed in the tie formers, so that the takers intervene to advance the fabric into position for the training operation that will follow.

   The grippers are arranged in annular series around the circumference of the drum, so that the series of grippers (which, as shown, have pairs of cheeks) are aligned.

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 born in action in order to seize the line threads successively during the rotation of the drum; the arrangement is preferably such that more than one series of grippers, on the side of the drum opposite to the feeding of the machine, are in action at a time.



   As regards the drum 42, the takers provided therein include cheeks 41a, 41b; the cheeks 41a can make a lateral movement towards the cheeks 41b or move away from them and they are controlled by radial arms 48 (fig. 40) whose inner ends carry rollers 49 which engage a cam 50 fixed on the envelope 51 reserved for one of the ends of the shaft 52 which carries the drum; when the drum rotates, said rollers are set in motion so as to engage the upper part and the lower part of the cam. When the rollers are engaged with the upper part of the cam, the cheeks 41a are brought into engaging relation with the cams. cheeks 41b, thanks to the joints 53, and when the rollers then arrive at the bottom part of the cam, the cheeks 41a are separated from the cheeks 41b and engaged with the line wire;

   this last movement can be done automatically, if desired, rigged to the springs 54 which are excited during the movement of the arms to close the cheeks.



   The gripper cheeks are preferably mounted so that they can be adjusted to take account of all possible spacings of the line wires and this adjustment can be effected by providing spacers 55 (Fig. 42). which can be interposed between neighboring pairs of gripper cheeks and have lengths chosen in accordance with the desired spacing.

   Organs can also be provided for adjusting the distance existing between the gripping cheeks, so that the clearance provided for the movement of the latter does not exceed that which is sufficient for

 <Desc / Clms Page number 24>

 obtain an effective grip of the threads by the cheeks; this member prevents excessive transverse displacement of the cheeks which would bring them out of alignment with the stop threads for the subsequent rotational movement of the drum.



   The fabric is withdrawn from the drum 2 to be brought onto a winding drum 56 (fig.2); this winding drum is preferably in a position such that the lengths of the line wires coming from opposite sides of the upper drum 42 have substantially parallel positions. the winding drum can be formed by a series of segments 57 (figs. 45 to 49), which are supported by conical guides 58; the segments are provided with parts 59 which can perform a sliding movement on the guides in question.



  The mechanism which serves to lower the drum consists of a pedal 60, a rod 61, a lever 62 and a rod 63; This last passes freely through the main shaft 64 which carries the conical guides and is assembled by its outer end with the free outer end of the segments of the winding drum.



   The winding drum is preferably controlled by a motor which may be an electric motor as indicated by the reference 65 (fig.2). operating so that its speed decreases as the resistance to twisting increases, as the fabric roll increases; this motor may have a switch connection with the rod 66 controlled by the main Clutch (fig.l).



   With regard to the flow of the lengths of the stopping wires, this is done, when the dies are open, by rollers 67 (figs.51,53). located on one side of the series of tie trainers. Preferably, and as shown in the drawings, two such rollers are provided and one of them is spring-controlled so as to

 <Desc / Clms Page number 25>

 collaborate with the other @ouleau who is fixed; in this case then there is just sufficient frictional contact to allow the stopwire to be gripped by the rollers 67 and to be fed through the line wires.

   Said spring control for one of the feed rollers is indicated by the numeral 68; this roller is carried by a shaft 68a, in relation to the frame of the machine by a ball bearing 68b, the outer cup 68c of which has the spherical shape. The roller and the part which carries it can therefore perform a slight radial movement on the center of the bearing in question. This arrangement of the feed rollers, thanks to which the space remaining between them can be automatically adjusted, Prevents stopwires from being flattened by the rollers and allows them to easily pick up the wires.

   The feed rollers are preferably arranged so as to be controlled by the members which rotate the feeder twisting mechanism on this side of the machine; said twisting mechanism intervenes to twist the end of the stopping yarn around the margin yarn and another twist is provided on the other side of the machine (or at an intermediate point between the extreme sides of the machine in case the latter is constructed to form more than one width of fabric at one time) to twist the other end of the bartack thread around the other margin thread.



   Said twisting mechanism comprises a rotating spindle 69 (fig.52) at summer 70 and having axial passages 71, il.8-9 71b. which allow the margin wire 4a to pass through it. In collaboration with the margin twists, a part 72 has been provided on which it is possible to impart a rotational movement over the ends of the stop wire, the parts in question (one on each end side of the machine). have a beveled edge 73 which, by engaging the ends of the stopper wire, brings the latter into the path of the twist hook 74 of the twist.

 <Desc / Clms Page number 26>

 



   The twists take up a rotational movement via a gear 71c, carried by the main control shaft 152 of the machine, and the worm 71d.



   It is possible to impart to said parts 72 a reciprocating movement by means of a toothed bar or rack 75, which engages a toothed section 76 carried by the sections 72 which carry at their ends a form 77 (fig. 53). arranged to receive margin wires and which serves to prevent any tendency for the latter to be pushed to the side or the end of the stop wire.

   The position of the stop wire feed rollers 67 with respect to the twist heads 70, is such that the marginal fingers 72 can directly fold the stop yarn over the head of the twist driven in a rotational movement, so that the stop yarn assumes the inclined position shown in Fig. 56, and the amount of yarn coiled around the marginal yarns, being determined mainly by the position of said feed rollers, this oblique placement of the ends of the yarns. stopping is facilitated by the presence of fixed plates 78 (fig. 54) which are controlled in collaboration with the plates 79 fixed on the marginal fingers;

   in the plates 78 there is an oblique opening 80 and in the plates 79 an opening 81 which normally is aligned with the opening 80 so that the stopper wire can first pass through the pairs of 'openings, but that when the Marginale finger plate moves back and forth resulting in the back and forth movement of the plates 79, the ends of the stop wire are drawn forward and down into the opening 80 to then leave the latter.

   as said above the stopwires are fed directly between the tie forming dies and this can be achieved by feeding the stopwires crosswise through the line wires and providing guides

 <Desc / Clms Page number 27>

 arranged between neighboring tie trainers; the stop threads are fed through these guides and the latter are preferably designed so as to guide the thread along a line slightly in front of the fixed parts of the matrix and in a plane corresponding substantially to the transverse groove 15 and to the horizontal plane central of pairs of matrices.



   Said guides may comprise upper and lower parts 82, 83 (figs. 25, 34, 4, 3 and Sa); the lower parts are fixed and the upper parts movable by the intervention of parts 84 controlled by cam or otherwise (figs.



  4, 23 and 24). This movement of the upper guides makes it possible to introduce the stopper thread by the closing dies into position for weaving.



   The arrangement of the guides 82, 83 for the stopper wire, with respect to the passages 71, 71a. 71b of the marginal twists, is such that, when the stopper yarn is brought into position in the dies, it assumes a position in which its ends lie between the margin yarns and the neighboring intermediate line yarns; when the dies are opena the stop wire is a short distance in front of the faces of the fixed dies and this initial position of the stop wire is roughly that indicated by line XX (fig. 3). and his).

   When the dies are closed, the stop wire and line wires are moved to the fixed dies and assume a position roughly as indicated by the YY line, and the combined wires return to their original position when the dies are opened. subsequently.



   The wire which serves to form the stop wires can be fed by a tubular guide 85 (fig.1) and thus sent to said rollers 67; a mechanism is used to act on the length of wire withdrawn from its spool or its support, to cut it to any determined and uniform required lengths, which are then removed

 <Desc / Clms Page number 28>

 taken up by said rollers 67 and then fed successively, in the weaving position, into the dies, this stop wire feed mechanism consists essentially of a pair of endless chains 86, 87 (figs. 59 to 68) arranged one above the other, so that these chains can collaborate to grip, by friction,

  stop wire and introduce it into said tubular guide which has the shape required to lead the various cut lengths of said wire to a point where they can be removed by said rollers 67.



   Said chains are supported by wheels 88, 89 which can be actuated in unison by any suitable source of motive force. The chains may be identical and, in the particular case shown, each chain has a series of links 90 flexibly connected to each other, their ends overlapping;

   the links of the upper chain have grooves or grooves 91, so as to form a longitudinal groove in the peripheral surface of the chain and the links of the other chain carry the protrusions 92, so that a longitudinal protrusion is formed on the peripheral surface of this chain, which collaborates with the longitudinal groove of the other chain to form a closed reduction in which the stop wire is admitted and through which this stop wire is debited from the fact friction grip by these chain parts.



     Means are provided in collaboration with said chains to cause the latter to exert an energetic pressure on the yarn, to engage it in friction, so that the movement of the chains in this active zone causes the continuous flow of the yarn. question towards the rollers 67 at a speed substantially equal to the peripheral speed of the chains.



   These members include a counterweight part 93 which can come to bear on the upper surface of the lower strand of the

 <Desc / Clms Page number 29>

 upper chain; the degree of pressure exerted by this part is controlled by a spring 94 and a nut 95 mounted on the threaded rod 96. This threaded rod has a part 97 in which an opening 98 or. there is a pin carrying a link 99 pivotally connected with said groove and with the pressure piece 93; another link, link 100, is pivotally mounted on the end of part 97 and this link is also pivotably mounted on the other end of pressure part 93. these links have feet 101 (fig.



  60) whose protruding ends tend to exert pressure on the part 93; the value of this exerted pressure can be adjusted by acting on the adjustment mechanism referred to above,
The upper strand of the lower chain is carried by a part 102; this last part as well as the hubs of the wheel 88 carrying a part 103, parts which can support each link in a place where. the knife (which will be described later) acts to cut the stopwire, ensuring that the links are properly supported so that they can run in a straight line up to. until they are picked up by the left wheel 88.



   One of the main functions of this mechanism consists in cutting said wire into determined and uniform lengths and this is carried out using the knife 104 (fige. 54 and 65) carried by one of the links of the upper chain. and can be automatically moved out at the desired time; the knife is arranged, for example, so as to be pushed into the cutting position by the action of the teeth of the left toothed wheel (see tooth 105 in figure 60) 89, during the movement of the chains, so as to cut a certain length of wire from the main stop wire.

 <Desc / Clms Page number 30>

 



   The arrangement and operation of the parts above are such that the chains feed uniform lengths of stop thread at a speed commensurate with the speed required of the operation of the fabric shaping machine, without stopping the flow of the yarn. stop.



   The rollers 106 (fig. 59) are used to debit and extend the stop wire to bring it to the chains. The lengths of stopping wire, which have been cut, when they leave the guide 85, are taken up by the rollers 67 previously described; the speed of rotation of the latter rollers is preferably 50% higher at the periphery than the feed speed of the chains; the rollers 67 are arranged to be actuated in synchronism with the manufacturing mechanism, so that the supply of the stopwires through the line wires is synchronized exactly according to the position of the knife 104, on the intermittent feed line wires and the operation of tie trainers.



   The stop wire can be cut into any specified lengths required, simply by varying the lengths of the feed chains 86, 87 and adjusting the distances between the wheels 88, 89 and thus also the distances between the actual severing and rollers 67, the latter measurement preferably being slightly less than each length of stop wire.



   The mechanism which is used to control the chains includes the train of gears 153, 156, 157 (fig. 70). the chain 158 which is attached between the chain wheel 157 and another chain wheel 159 (fig.l): this last wheel is carried by a shaft 160 which also carries a bevel pinion 161 (fig. 63), which comprises drives the left wheel of the upper chain by the bevel pinion 168, carried by the shaft which carries said chain wheel. The lower chain is controlled by the toothed wheel 163 carried by

 <Desc / Clms Page number 31>

 
Marble on which is mounted the left chain wheel of the lower chain and meshes the bevel gear 162.



   When the machine is set to vary the length of the stop wire sections, the gear wheel 153 is also changed (fig. 70); the arrangement of this gear is preferably designed so that the number of teeth of the wheel 153 is in inches. or in any other suitable measure, the length of the stopping wire which must be introduced into the machine: each tooth of the wheel thus represents a unit of measurement of wire length. The toothed wheel 156 is carried by an arm 154 pivotally mounted on the shaft 165 which carries the toothed wheel 157 and it allows the easy replacement of the toothed wheel 153 by a wheel of different dimensions.



   The stop wire feed mechanism, which is generally designated by the reference 43, (fig. 1), is, as shown in this figure ;, arranged across the width of the machine and is has provided devices by which the mechanism can be adjusted to any required position with respect to either side of the machine. The tubular guide 85 also lies across the width of the machine and is shaped to feed the length of stopwire in a transverse direction on one side of the tie former series, so that the lengths of stop threads, which have been severed, can be successively taken by the rollers 67 and introduced directly between the tie forming dies.



   The tubular guides 85 can be designed to handle two or more lengths of stopwires; the lengths separated in this arrangement are fed to the rollers 67 by the action of the pressure exerted by the length or cut lengths which follow.



   Although the above-described feeding and cutting device is particularly suitable in collaboration with the

 <Desc / Clms Page number 32>

 As an improved machine for producing metallic fabric, it will be understood that this mechanism can be employed with just as many advantages in other cases where it is required to ensure a throughput of successive lengths of threads of uniform and determined lengths.



   The upper drum 42. which carries the grippers 41 is used to advance the line threads as the fabric is formed, continuously rotates by means of a chain 107 (fig. 2) which passes over guide wheels. 108, 109, 110 and 111 and is controlled by the chain wheel 112; to account for the period that a stopper wire is attached to the line wires, the drum 42 is made to be lowered while the dies are closed to complete the ties and then lifted when the dies are closed. opens the dies after forming the fasteners; during this period, the drum advances by a value determined according to the spacing which it is desired to give to the stopper threads of the finished product.



  This lowering and raising of the drum can be achieved by means of a frame 113, which supports the drum and on which cams 166 (figs. 3, Sa) act at the times required during the running of the machine, so as to impart to the drum the required upward and downward movements, while the chain wheel 108, carried by the movable structure 113, serves to catch up with the swing of the chain caused by the descent of the said structure.



     Cam 50, on the surface of which rollers 49 roll to actuate grippers 41, may be attached to structure 113 to prevent it from rotating. Drum 42 is of the diameter required to prevent the tendency of the line yarns to helically coil from being destroyed and the presence of this drum allows a single transfer member to be used to feed the fabric onto the final take-up drum. .



   The circumference of the drum is a multiple of the unit of

 <Desc / Clms Page number 33>

 measure the fabric and serves to Measure the fabric.



   With the drum are associated organs which make it possible to record the quantity of tissue sent by it; this recording organ is in turn associated with organs which can activate an audible signal when a determined quantity of tissue has been fed by the drum.



   In Figures 71-75, the signal and recorder is actuated by chain wheel 108 through gear 114, 115, 116, 117; the toothed wheel 117 rotates a drum 118 with which the signal is associated, while at the same time it is associated with a mechanism which can record the total amount of metallic fabric produced by the machine, the latter mechanism being driven by the wheel toothing 117 via the pinions 119, 120, the worm 121 and the toothed wheel 122.



   The recording mechanism is generally designated by the reference 123 in FIG. 73. has an outer drum 124 with numbers at its periphery (see fig. 74) which serve to indicate the total amount of fabric produced by the machine, with the help of a needle 125.



   The face of the drum 118 bears series of radial denominations 128 corresponding to a determined quantity of fabric and its peripheral face bears contacts 126 displaced laterally and aligned with the series of contacts representing the various denominations; said contacts are arranged in such a way that, when the drum makes a movement of a certain amount, one or the other of these comes into contact with a fixed contact 127 after which an electric circuit is closed and a signaling device begins to operate.



   In operation, in practice, the names of the drum represent the length of the fabric in poles and the arrangement is such that, if for example the signal is to operate

 <Desc / Clms Page number 34>

 when ten cloth poles have been made, drum contact 129, coming back to abut the fixed contact, closes the circuit and operates the signal. The other contacts located on the edge of the drum and designated by the references 130. 131.



  132. correspond to the denominations 20, 30, 40 respectively.



   The machine of the type shown can form two separate lengths of metallic fabric; this implies the presence of twists at a point between the ends of the machine which act to cut the stop thread and twist the ends thus cut around the neighboring line threads 4a of the two pieces of fabric.



   The intermediate twisting mechanisms are represented by. FIG. 3a in a general manner, and in detail by FIGS. 57 and 58. their construction and operation are similar to those of the twisting mechanism described above and which is used to twist the outer ends of the yarn. stop.

   It follows that the corresponding parts of the intermediate twisting mechanism are indicated by the same references as those which were used in the description of the other twisting mechanism. However, with the intermediate twisting mechanism is associated a knife 166a which pivots at 167 and is controlled by an adjustable connecting rod 168 in relation to the toothed bar 12. (fig. 52) which intervenes to bring the fingers 72 into the path of the stop wire;

     This movable knife works in conjunction with a fixed knife 166b and these two knives are carried by a cover 166c, so that the knife holder is kept aligned for various adjustments of the distance between the pins of the central twists. this last adjustment is made using screws 166d.

 <Desc / Clms Page number 35>

 



   The stop wire, when it is originally arranged in the dies, is guided, in addition to the fixed and movable gaides which were discussed above. by a guide 169 disposed between the intermediate twisting mechanisms and pierced with an opening to allow the passage of the sharp edge 170 of the knife, so that the stop wire can be cut .



   The toothed bars 23, 40 and 75. which serve to actuate the sliders 11, forming hooks, the anvils 13 and the fingers 72 of the twisting mechanisms, are mounted so as to be actuated by cams 171, 172 and 173 por- Tied by a shaft 174 controlled by the main shaft of the machine 152. The shaft 174 also carries cams, the cams 175, 176. and 177 which serve to control the bar 150a. a hexagonal bar 178 which controls the moving parts of the guides, the stopwire 82 and the bar 20 respectively.

   The shaft in question also carries one of the cams 166 serving to control one of the structures 113 which support the upper drum; the other cam, 166, is on the other side of the machine and is actuated by a shaft 179 which in turn is actuated by the main shaft of the machine 152 (fig. 70).



   Said cams are arranged so as to operate in grooves made in blocks 180 with which the bars are assembled for adjustment, while rollers 181 are provided near one end of said blocks and the cams act on these rollers to move the bars in the direction indicated by the arrow on the right side of figs.16 to 21; the movement of the bars in this direction causes the operation of the various parts with which they are related, so as to connect a stop wire to the line wire; the arrangement of the cams is such that the bars are operated in the desired sequence as will be discussed later.

 <Desc / Clms Page number 36>

 



   To return the bars to their normal and inactive position, other cams are used, the cams 182, 183, 184 and 185; these are carried by a shaft 186 which is controlled by the main shaft via a worm 187 and.: a gear wheel 188. The shaft 174, which carries the other cams , turns clockwise, the intervention of a worm 189 and a toothed wheel 190, while the shaft which carries the other cam turns counterclockwise. watch; the respective shafts are thus provided with right worm and left worm, as shown in fig. 3.



   The cams 182, 183, 184 and 185 are aligned with the cams 175, 171, 173 and 177 respectively; they are arranged so as to act on other rollers 191 carried by blocks 180 to move the respective bars in the direction of the arrow which appears on the left side of figs.15 to 21.



   The cam 176, which controls the movable guides of the stop wires, is stepped so that this cam first of all lifts the guides by an amount exactly sufficient to allow the passage of the stop wire and its guidance. towards the central transverse groove of the dies; the next step of the cam then acts to fully open these guides to allow upward movement of the fabric, the guides being moved away from the fabric by the second operation of the cam 176.



   The bar 40, which is used to control the hook-forming anvils, is mounted so as to automatically return to position after the raised part of the cam 172 has acted on its roller 181; one uses for this purpose, for example, a spring 192; the bar 178, which is used to control the movable guides of the stop wires, can also be arranged so as to be automatically returned, for example by the action of a spring 193 (fig.4).

 <Desc / Clms Page number 37>

 



   The reels of thread reused for the manufacture of the fabric, are carried by supports indicated by figs. 76, 77 and
78, so as to occupy the minimum of space and at the same time to be easily accessible. In the above figures the supports of the line wires are designated by the reference 133; they are arranged in pairs on each side of a pit 134 made in the floor of the workshop or other place where the machine is installed; the hook supports are indicated by the reference 135 and are arranged in pairs directly above the pairs of the line wire supports;

   the axes of the former are horizontal and preferably inclined downwards, as shown in Fig. 78, while the axes of the supports of the hook threads are vertical.



   The supports for the son with hooks can be carried by brackets 136 carried in turn by vertical supports 137 arranged around the layer 134; said supports are assembled by transverse bars 138 at the ends of which is connected a frame 139 serving to support a welding apparatus 140 which can move along said frame.

   The welding mechanism is used to weld the ends of the line wires and hook wires (i.e. the ends of the wires which have been used with those of the new spools the welding mechanism is also used. to assemble by welding the ends of the stop wire which must be supported by a support 141 located at the end of the pit opposite the machine; the stop wire is brought from its support to a winch 142 which serves to bring the stop wire to the chain feed mechanism discussed above
The line wires are removed from their respective support by tubular guides;

   they are arranged around a winch drum 144 arranged in front of the machine and from which the line wires are removed by the tie formers.

 <Desc / Clms Page number 38>

 



   The brackets for the hooked threads preferably have the shape shown in Figs. 81, 82 and 83; they include covers 145 which prevent the spools of wire from coming out of their support 135, which can lock themselves in position when lowered onto the frame of their respective support and which automatically unlock from said frame when one the raised, for example by the automatic action of locking members 146 following the lifting of the movable cou -verales by handles 146 provided above,
The supports of the line wires preferably have the shape shown in Figs. 79 and 80.

   They preferably comprise a bell-shaped frame 148, which is fixed; the wire is brought from the supports by an arm driven by a rotational movement 149 which acts to remove the wire from its respective support and guide it in the tubular guide 143 of this support.



   The operation of the machine can be described as follows: the line yarns 4 are first brought upwards by the extruders 44, the marginal yarns 4a by the twists 71 and the intermediate line yarns (4) by the frames tie formers, between the dies and then are introduced between the grippers of the upper measuring drum 43 to go from there to the winding drum 56, to which the ends of the line wires are attached.



   The hook forming yarns 25 are also fed into the chuck series 30. 33 while the stopper yarn 5 is taken up by the chain feed mechanism 43.



   When the machine is started, the stop wire is cut; through the knife 104 and a section of the wire is introduced through the line wires directly into the guides of the stop wires 82, 83 and between the sets of dies 7a and 7b. Simultaneously, or almost simultaneously, with the supply of the stop wires across the line wires, the sliders forming hooks 11, 12 in-

 <Desc / Clms Page number 39>

 trent in play and the hooks 10. which are formed, are pushed by the slides 12 in the fixed dies 7a, so as to overlap on the stop wires at the point of intersection of the intermediate line wires with the wire of stop. then what the parts 82, guiding stopwires. are lifted and the dies are closed to complete the wire ties 18;

        these ties are formed simultaneously so as to attach the intermediate line wires to the stop wires. At the same time that the thread ties are formed, the twists come into play to coil the ends of the stopper thread around the margin threads 4a (the knife 166a of the intermediate twisting mechanism has been put in place beforehand to cut the thread. stop) in order to complete the weaving of the fabric, after which the dies open (the moving parts of the dies 7b 'are separated directly from the fixed parts of the yarn 7a) and the drum 42, which rotates continuously, can then grip fabric through its takers;

   the finished fabric is finally wound up on the take-up drum 56, the hook yarn feed mechanism, the measuring mechanism and ± Stop thread trimming, stop yarn feed rollers 67 for the yarn next stopper which has been cut and the hook and tie formers then being turned back on to weave another stopper wire on the line wire, at a specified distance from the previously attached stopper wire to the line wires.



   At the same time that the tie formers are operating and while a stopper wire is held in the dies during this operation, the drum 42 is lowered and then the town halls are opened; then the drum is lifted while the dies are opened for suitable distances to ensure the cessation of feeding of the line threads of the fabric by the takers on the upper drum; the latter is brought back

 <Desc / Clms Page number 40>

 in its upper position while the dies are open after attaching a stopper wire to the line wires, so that the grippers act directly to move the line wires the distance required to attach the next stop wire . to the fabric;

   the operation of these parts is done automatically and in an exact order determined by the intervention of the cams (the operation of these cams can be synchronized according to the spacing of the series of wires which is required), up to , that the machine is stopped.



   In a variation of the invention, the drum drops at a uniform speed from the time the dies are 3/8 "from their closing until they are 3/8" from their full opening; during the remainder of the die open period, the drum rises at an increasing rate.



   It is understood that the invention is not limited to the dice. details of construction given above, nor to the special construction and operation of the machine and that the combination of the various operative parts of it can be changed according to special requirements or any practical conditions or others that you want to fill.



   Claims. 1.-Machine for forming the metallic fabric comprising organs for guiding and debiting the line threads through the machine, members for debiting determined lengths of stopping threads across the line threads, members for cut off the wire or wires used to form the separate wire ties for the intermediate line wires and the stopping wires which cut them and members for forming said ties simultaneously.

** ATTENTION ** end of DESC field can contain start of CLMS **.


    

Claims (1)

2.- Machine of the type in question or in accordance with claim 1, provided with members for debiting the stop wires <Desc / Clms Page number 41> directly between matrices or bodies of the same kind, to form the attachments of the threads while the matrices are or.-. green. 3. A machine of the type referred to or according to claim 1 or claim 2, in which the stopping yarns are debited in transverse direction directly between the matings or bodies of the same order which may form the stops. wire ties. 4.-A method of manufacturing metallic fabric of the type in question. 9 which consists in bringing the stop threads into the position in which they cut the line threads in the transverse direction, directly between the dies or same kind that form wire ties to connect wires that intersect and while the dies are open. 5. In the manufacture of wire cloth of the type described, feeding the stop wire along a line which passes through the horizontal central plane of the dies to form the yarn ties and while the dies are open. 6. A machine according to one of the preceding claims provided with guides for supporting and directing the parts of the stop wires between the dies or bodies of the same kind and which can be started to allow the stop wires to stop. be brought into the operative position between the dies or organs of the same kind, for the weaving operation and also to allow the flow of the fabric after the successive forming operations. 7. Machine according to one of the preceding claims, provided with members serving to feed the lengths of threads in the position required for the formation of a metallic fabric and for cutting the threads to the determined required length, during the process. wire feed. <Desc / Clms Page number 42> 8. Machine according to one of the preceding claims, provided with members for feeding the yarn in order to form the stopper yarns of the fabric and to cut the yarn into defined and required lengths, and members. to successively cut the lengths thus cut into position for the formation of the fabric. 9.-Devices for cutting and cutting a length or lengths of thread with a view to forming metallic fabric, or for any other purpose, comprising devices for cutting the length or lengths of thread and cutting it into sections determined without stopping the wire feed. 10.- Organs for cutting and cutting a length or lengths of thread with a view to forming metallic fabric, or for any other purpose, comprising members serving to continuously cut a thread longitudinally or in any other direction required, at a constant speed, and to cut the wire into given lengths during this feeding movement and members serving to take up each length of wire after it has been cut, and which can cut this length at a speed larger than that of the initial feeder, so that the lengths of wire are fed successively at determined intervals. II.- Machine for forming metallic fabric of the type referred to or according to one of claims 1 to 8, provided with organs for continuously moving and measuring a wire in the direction of its length, at a speed constant and to cut the wire into given lengths without modifying this measuring movement of the wire and the feed rollers which can come to grab the advanced end of each length of wire as soon as it is cut, said rollers being able to cut each length at a speed greater than that of its measuring movement, in order to spare <Desc / Clms Page number 43> intervals in the feeding of successive lengths, of a duration equal to or greater than that of the closed period of the matrices which serve to form the ties, or mechanisms of the same kind, when attaching one of the cut lengths of thread to the line threads or other threads of the fabric. 12. * Machine for forming metallic fabric, of the type referred to or according to claims 1 to 8, provided with barley ** nes by means of which the stop threads can be brought into position across the line threads , substantially within the width of the machine and in such a way that the stopping yarns are introduced directly between the dies or similar members which form the yarn fasteners assembling the stopping yarns and the yarns lines that intersect. 13. Machine for forming the metallic fabric of the type referred to or according to one of claims 1 to 8 and to claim 11 or to claim 12, provided with members which can act on the line yarns when the latter are fed through the machine so as to give a spiral shape to the yarn, which gives a helical shape to the finished fabric. 14. A machine according to claim 13, in which the members in question comprise a series of rollers arranged in offset relation and in which members are provided for modifying the angular position of one or more of these. rolls relative to the other roll or rolls. 15. A machine according to claim 13 or claim 14, wherein the axes of the rollers in question are inclined to each other. 16. Machine according to one of claims 1 to 8 or to claims 11 to 15, in which the members which serve to feed the line wires through the machine comprise a rotating upper drum carrying a group. series <Desc / Clms Page number 44> of annularly arranged grippers, series of grippers which can be started successively during rotation of the drum, preferably so that more than one series of grippers on the side of the drum remote from the feed side of the machine, are turned on all at once. 17. Machine according to claim 16, in which said series of takers are controlled by an eame (preferably by a fixed cam with which the organ which controls the taker works), so that these takers seize and abandon the machine. wire at the desired time. 18. A machine according to claims 16 and 17, wherein members are provided for modifying the spacing between the neighboring pairs of grippers based on the spacing that it is desired to leave between the line yarns of the fabric. 19.- Machine according to claims 16, 17 or 18, provided with members for periodically lowering the drum 'in order to interrupt the flow of line threads during each operation of the machine to fix a stop thread to the series of line wires. 20.- Machine according to one of claims 16 to 19, wherein said drum is actuated by a continuous walking chain or similar member and members are provided to catch the swing of the chain when the drum is lowered. 81.-Machine according to one of claims 16 to 20, wherein there are provided control units preferably by said chain or the like, to correctly place the line son in said takers. 22. Machine according to one of claims 16 to 21, wherein said drum is rotatably mounted on a support structure (preferably comprising a pair of vertical or substantially vertical spindles arranged one at each. end of the drum) which can be started periodically, for example, by means of a cam or cams to cause the lowering or raising of the drum. <Desc / Clms Page number 45> 23.-Machine conforms to. Claim 22. wherein said structure is controlled by one or more cams carried by or actuated by the main machine control shaft. 24. A machine for forming metallic fabric according to one of claims 1 to 8 and 11 to 23, provided with members for forming a series of hooks and for then introducing these hooks in a position in which they. overlap over the stop threads at the point of intersection of these threads with the line threads and in which dies can be brought into action to form the final tie by folding these cro-chiefs around the intersecting threads. . 35'-A machine according to claim 24, wherein each of said hooks is formed by the combined actions of a slider and a movable anvil, while another slider can be started when a hook has been activated. formed so as to push the hook into the dies, the members being provided to order lesdi your parts in an exact and predetermined order. 26 ... Machine according to claim 25, in which the dies comprise fixed parts and movable parts and members are provided to move the latter so as to make them collaborate with the fixed parts of the die and to perfect. thus the dies for the formation of the fasteners. 27.-Machine according to claim 25, in which each anvil and its respective slides, which serve to form the hooks and the parts of the dies which serve to form the fasteners with the aid of these hooks, are carried by an angular unit or by angularly arranged units and several of these units are preferably arranged horizontally. <Desc / Clms Page number 46> talement and transversely through the machine, at certain distances from each other depending on the esrtement that one wishes to leave between the line wires. 88.-Machine according to one of claims 24 to 27, wherein the loops of the hooks pass above or pass below the stop threads and the dies form the branches of the hook below or above (in front of or behind) the neighboring line son and around the stop son located on the side of the line son away from said loops. 29.-Machine according to one of claims 24 to 28, wherein the series of hooks are displaced in a plane substantially at right angles to the plane of the fabric and forming with the stop threads a neighboring angle, preferably , from 40 to 45. 30.- Machine according to claim 18, wherein the jones of the grippers are arranged so as to adapt to the smallest possible spacing of the line wires and where. tubes or other suitable spacers are provided and may be interposed between the neighboring pairs of the gripper cheeks in order to achieve any other spacing of the line wires which may be required. 31. A machine as claimed in claim 18, or claim 30, provided with members which may be in the form of a screw adjustment and which serve to prevent excessive transverse displacement of the gripper cheeks, which could cause these out of alignment with the line wires for the next revolution of the drum. 32.-Machine according to one of claims 26 to 31, wherein the movable parts of the die are associated with slides which can 'be controlled in series and in unison using, for example, d 'a toothed traction bar forming substantially a right angle with said slides. <Desc / Clms Page number 47> 33. Machine according to one of claims 25 to 32, in which toothed trauma bars are provided which serve to control the slides to form hooks and to introduce the latter into the dies. 34.-Machine according to claim 32 or resells a.la! - cation 33, in which a pull-up bar, several pull-up bars or all the pull-up bars in question control said slides to the intervention of intermediate organs which can give way when an excessive force acts on the operating parts . 35.-Machine according to claims 32, 33 or 34, wherein the traction bars are provided with toothed segments connected thereto by members which yield under the effect of an excessive force, such as for example by means of pins which shear when excessive force is felt on the toothed part or on the toothed parts. 36. A machine according to one of claims 32 to 35, in which connecting rods are used to connect said slides to the tension bars. the connection between said connecting rods and the sliders both ensured by members which c * dent under excessive forces such as, for example, the pins which shear when an excessive force is felt on these parts. 37.-Machine according to one of claims 32 to 36, wherein said slides are controlled by toothed traction bars, either directly or via appropriate connecting rods or other joints, said bars preferably being under tension . 38.-Machine according to one of claims 32 to 37. provided with members, for example a toothed rack which can act simultaneously on the hook-forming anvils. <Desc / Clms Page number 48> EMI48.1 69.-My bine according to one of claims S4 to 38, provided with members for cutting lengths of wire which serve to form the hooks and which preferably comprise a series of pairs of friction clutches which can ' be started successively, so as to bring a determined length of yarn into a position in which the hook-forming slide can act to form the hook, organs being provided for cutting the successive lengths of yarn brought into this position before the hook forming operation. 40. A machine according to claim 39, wherein the threads which serve to form the hooks are preferably arranged so as to be lubricated by passing through lubricant contained in a suitable container of the machine or alternatively of the lubricant. so that they are sent lubricant, the lubricated hook serving in turn to lubricate the parts that form the hook and fastener. 41.-Machine according to claims 1 to 8 and 11 to 40, provided with members for twisting the ends of the stopping yarns around the margin yarns $, EMI48.2 48. "A machine according to claim 4l, wherein the twists rotate rollers or the like to bring the stopwires across the line wires. EMI48.3 4i.eMaoh1ne conforms to rev endiaatians if or 42. provided with members which are started at appropriate times to bring the ends of the stop wire into the path of the twists. 44..Arrangement of supports for spools of wire or the like, comprising pairs of distance supports whose axes are horizontal or inclined and pairs of supports arranged directly above the supports mentioned first and whose axes are substantially vertical . <Desc / Clms Page number 49> 45. Arrangement according to claim 44, combined with an upper welding apparatus which welds together the ends of the wires of the coils used and those of the new coils. 46. Arrangement according to claims 44 or 45. wherein the series of supports, arranged vertically, are carried by brackets carried by vertical supports arranged at distance to distance around the zone which contains the reel carriers. 47. Arrangement according to claim 46. wherein an upper structure is assembled with said supports, which structure serves to support the welding apparatus, mounted from my. necessary to move along the structure. 48.-Arrangement in accordance with a. one of claims 44 to 47, wherein the series of coils, arranged horizontally, are located in a pit so that the lower part of the end of the supports, which receives the coils, is substantially at floor level. 49.-Arrangement according to one of claims 44 to 48. wherein the lower and horizontal coil supports are fixed and the wire withdrawn from the latter by arms which rotate on the axes of these supports. 50..Arrangement according to one of revendioations 44 to 49, provided with tubular guides for driving the son of the lower series of the spool carriers, substantially as stated. 51.-Machine according to one of claims 1 to 8 and 11 to 43. provided in combination with an arrangement of coils according to one of claims 44 to 50. 52. A machine according to claim 51, in which the lower series of supports serves to support the wire intended for the line wires and the upper series of supports to support the wire intended to form the croclets, a wire support with cro- chets being provided for each intermediate line wire support <Desc / Clms Page number 50> 53.-Machine according to claims 51 or 52, in which the arrangement of the reel-holder comprises a support for the stop wire, which support is preferably located on the side of the arrangement of the reel-holders opposite to the face of the metal fabric forming machine. 54, A machine for forming the metallic fabric, provided in combination with an arrangement of spool holders, substantially as described with reference to Figures 76 to 78. 55.-Machine according to one of claims 1 to 8 and 11 to 43. provided with associated members serving to record the quantity of tissue produced by the machine, these members comprising means which can give a visible recording of the quantity of product produced and organs which give a sound signal when a determined quantity of tissue has been produced. 56. A machine according to claim in which the recording and signaling member in question is associated formed with an upper drum on which the fabric / moves and is measured. 57. A machine for forming the metallic fabric, provided with recording and signaling devices essentially as described with reference to Figures 72 to 75 of the drawings. 58.-A machine for forming the metallic fabric or according to one of claims 1 to 7 and 10 to 42, with which is associated a drum capable of being lowered, on which the finished fabric is wound, essentially as described with reference to Figures 45 to 49 of the drawings. 59.-Machine for forming metallic fabric, essentially as described in the specification with reference to the accompanying drawings.