US2158536A - Textile machine - Google Patents

Textile machine Download PDF

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Publication number
US2158536A
US2158536A US92112A US9211236A US2158536A US 2158536 A US2158536 A US 2158536A US 92112 A US92112 A US 92112A US 9211236 A US9211236 A US 9211236A US 2158536 A US2158536 A US 2158536A
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United States
Prior art keywords
pattern
scanning
carriage
movement
operable
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US92112A
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English (en)
Inventor
Fisher George
William S Tandler
Carlisle Richard Wallace
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LEFIER Corp
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LEFIER CORP
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Publication date
Priority to DENDAT745181D priority Critical patent/DE745181C/de
Application filed by LEFIER CORP filed Critical LEFIER CORP
Priority to US92112A priority patent/US2158536A/en
Priority to CH208170D priority patent/CH208170A/de
Priority to GB20412/37A priority patent/GB497106A/en
Priority to FR824764D priority patent/FR824764A/fr
Application granted granted Critical
Publication of US2158536A publication Critical patent/US2158536A/en
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18296—Cam and slide
    • Y10T74/18304—Axial cam
    • Y10T74/18312—Grooved
    • Y10T74/1832—Multiple screw

Definitions

  • This invention relates to the production of patterned textile fabrics, either knitted or woven, and is concerned more particularly with a novel apparatus for controlling the operation ol' a textile machine in accordance with a pattern which is to be reproduced on the product of the machine.
  • the apparatus of the invention is capable of a wide variety of applications, and may be used, for example, for controlling the operation of knitting frames, looms, and machines for punching cards which are to be used with Jacquard mechanisms, but since the apparatus is especially adapted for controlling knitting frames of the circular type,van embodiment of the principles of the invention appropriate for that specific use will be illustrated and described in detail for purposes of explanation. It is to be understood, however, and will be readily apparent that the utility of theinvention is not limited to its employment in connection with textile machines of any particular kind.
  • the sheet is of relatively short length and bears only a single repeat or a limited number of repeats of the pattern, so that when the scanning means has explored the entire sheet, after a period of operation of the machine, the latter must be stopped and the pattern mechanism reset so that the scanning operation can be repeated.
  • This periodic starting and stopping of the4 machine is objectionable because it results in loss of production and waste of power.
  • the present invention is accordingly directed to the provision of a control apparatus, employing a pattern sheet, which overcomes the objections to the prior devices above referred to and permits continuous uninterrupted operation of the textile machine with production of fabric thereby in indefinite lengths and carrying an indefinite number of repetitions of the pattern.
  • the pattern sheet to be used is endless, and when it has been mounted in position and the machine started, the control mechanism requires no further adjustment or resetting throughout the operation of the machine and the repetitions of the pattern on the product of the machine are precisely alike in all respects.
  • the new apparatus includes an electrically operatedv control device which selects the elements of the textile machine, such as the needles or heddle wires, which'are to be brought into operation, and means for supplying current to the device in accordance with the variations of a pattern.
  • the control device may take the form of a selecting element actuated by an electromagnet, and the means by which current is supplied to the electromagnet include a source of power, a pattern, and means for scanning the pattern and controlling the supply of power "do the electromagnet in response to Variations in the pattern.
  • the scanning means employed may take dierent forms and may include, for example, a photoelectric cell which receives light reected from the surface of the pattern, or contact means making direct contact with the pattern surface.
  • the pattern is endless and preferably of cylindrical form.
  • the pattern is preferably subdivided into two parts bearing complementary Aportions of the design.
  • the scanning means is then operable alternately on the two parts of the pattern, and the scanning means and pattern are given a compound rotary and reciprocating relative movement.
  • the scanning means has completed the exploration of one part of the pattern, its operation is altered so that it then works on the other part, changing from one part to the other when the scanning of each part is completed.
  • the scanning operation can be carried on continuously and without interruption, and no inversion or reversal of the design appears in the product of the machine, since the scanning always starts at the same point on the pattern for each repeat thereof.
  • Figure 1 is an elevational view of one form of the new apparatus illustrated in association with a part of a circular knitting machine which is shown in section;
  • Figure 2 is a fragmentary sectional View on the line 2--2 of Figure l;
  • Figure 3 is a view of the new apparatus partly in elevation and partly in vertical section
  • FIGS 11 and 12 are detailed views of the apparatus illustrated in Figure 9.
  • Figure 1 associated with a circular knitting machine generally designated 20 and of the type which includes a cylinder 2
  • the cylinder is mounted on a support for rotation on a vertical axis and may be rotated by any suitable means.
  • a circular knitting machine generally designated 20 and of the type which includes a cylinder 2
  • the cylinder is mounted on a support for rotation on a vertical axis and may be rotated by any suitable means.
  • the cylinder is provided with a girth gear 20a meshing with a pinion 20h on a vertical drive shaft 20c and the cylinder extends through a plate 25 supporting a cam 26.
  • the selector jacks As the cylinder rotates, the selector jacks, unless put out of operation, move up the surface of the riser cam and raise their respective operating jacks and needles so that the needles are caused to take part in the knitting operation.
  • the apparatus of the present invention operates to select and put out of operation selected jacks 24 and thus controls the operation of the knitting machine.
  • the selection of the needles is. effected by means of a control device 21 which engages the selected jacks 24 and moves them to inoperative position.
  • the control' device may be of various constructions, and, as illustrated, it includes a movable hammer lever 28 and a pair of electromagnets (not shown), or an electromagnet and a spring (not shown) ,i for moving the hammer lever in opposite directions.
  • 'I'he control device is suitably supported adjacent the circular series of selector jacks, and as the cylinder 2
  • the operation of the control device 21 is controlled by a mechanism which includes a pattern generally designated 29.
  • a pattern generally designated 29.
  • 'I'his pattern is endless and preferably takes the form cfa sheet of suitable material, to the surface of which the design is applied in a suitable manner.
  • the pattern sheet may be of electroconductive material, such as thin copper, with the ilgures of the design formed thereon of insulating material.
  • the pattern sheet-is adapted to be scanned by iight means and the sheet is made of any appropriate material of a suitable color with the design iigures of another color.
  • the pattern employed is preferably in the form of two parts designated 29a and 29h, respectively, these parts representing longitudinal subdivisions of the pattern and bearing complementary portions of the design.
  • the two parts 29a, 29h are mounted so that their ends meet, and for this purpose, the two parts may be supported on the surface of a cylinder 30 of the proper size.
  • the cylinder 30 is fast on a shaft 3
  • is provided with a gear Bia of the same size and number of teeth as the gear 20a, and gear 3
  • the pattern used is in the form of two parts, these parts are mounted on the cylinder in reversed relation relative to the axis of the cylinder.
  • the pattern bears a ilgure designated 32 which is of generally triangular form with the apex of the triangle carried by pattern part 29a, and a truncated portion including the base carried by part 29h.
  • 'I'he parts 29a and 29h are then oppositely disposed so that the apex of the triangle lies adjacent the line of truncation.
  • the means for scanning the pattern comprises a carriage 33 of general U-shape, which is mount- Aed for movement on the rods 34 extending between a pair of plates 35 forming part of a stationary frame which is completed by a rod In the con- 36 connecting the plates 35.
  • the frame is sup- 'i ported above the knitting machine in any con-4 venient manner and the shaft 3
  • Two lead screws 38a and 38h are mounted in the plates 35 between the rods 34, and at their upper ends, the screws are provided with sprocket wheels 39a, 3917, re spectively.
  • An idler sprocket wheel 40 is mounted on the end of the outer rod 34 beyond the top plate 35 and the top plate also carries idler sprockets 41a and 4
  • a chain. 42 is trained about the several sprocket wheels as illustrated in Figure 6, and as the shaft 3
  • the carriage 33 is moved up and down the guide rods 34 by means of the lead screws, and for this purpose there is provided a split nut 43 engageable with the screws alternately.
  • the nut is mounted in the end of an arm 44 pivoted on the upper end of the carriage, the arm being guided in its movement by a strap 45 on the carriage, and
  • the lead screws are of such construction and are so rotated that when the nut 43 is in engagement with one of the screws, the carriage moves down the guide rodsyand when the nut is shift/ed to the other screw, the carriage is raised.
  • the shifting of the nut from one screw to the other may be accomplished by various means, such as electromagnets and relays, but in the construction illustrated, mechanical means are employed which include a rod 46 mounted on a block bar 48 to cause the rod 46 to move the arm 44 to Y shift the nut 43.
  • the rocking of the block 41 at the appropriate times in the operation of the apparatus is accomplished by means of a revolving pin 53 which lies between spring arms 54 extending from the block 41 in a direction away from the rod 46.
  • the pin 53 is mounted eccentrically on the face of a gear v55 supported for rotation on a stud carried by a standard 56 rising from the top ofthe carriage, the gear being driven by a pinion 61 rotating on a stud supported by standard 56 and secured in contact withthe face of a gear 58 mountedon the same stud.
  • the gear 58 meshes with a rack 59 extending between the plates 35 so that as the carriage is moved along its guide rods, the gear 58 is caused to rotate by its engagement with the rack, and in turn, causes a rotation of the gear 55.
  • the gears and pinion are so constructed that the gear 55 makes a half revolution during the movement of the carriage from one end of its path of travel to the other, and when the frame passes the mid-point in its path, the pin 53 bearing against one of the spring members 54 tends to swing block 41 and rod 46 to move the arm 44 to change the driving engagement of the nut 43 from one screw to the other.
  • the arm 44 is latched in position, and until the latch is released, the block 41 and rod 46 can eiect no movementof the arm with a resultant shift in the driving connections, so that the continued movement of the pinion to dead center position in a horizontal plane merely serves to wind up or store energy in the spring member 64.
  • the latch mechanism referred to comprises a detent 66 which has an end receivable in one or the other of a pair of apertures in the end of the branch arm 52 and is carried by a collar 6l pivotally mounted on a stud 62' on the top of the carriage 33.
  • This collar is provided with an arm 62 which is engaged by an arm 63 attached to a collar 6&3 mounted on a trip shaft 65 supported in a housing 65 carried by the carriage 33.
  • the shaft 65 is also provided with a pair of collars 61a, 61h having arms 68a, 63h, respectively, which project through the wall of the housing, and are adapted to beengaged respectively by studs 69a, @9b projecting from the surface of the pattern support 30.
  • the movement of the trip shaft is limited by an arm 10 attached to a collar 1l fast on the shaft, the pin 10 being normally held in contact with a stop pin 12 on the housing 66 by means of a spring 13 attached to arm 16 and to a convenient part of the housing.
  • the arm 10 is in engagement with the stop pin 12, and the l rocking of the trip shaft is eiected against the one screw to the other.
  • photoelectric scanning means are employed and the means include a photoelectric cell 14 mounted in a casing 14a in the housing 66. in any suitable position. Also ⁇ mounted within the housing are two optical systems comprising electric lamps 15a, 15b in tubular passages 16a, 61h contain ⁇ ing lenses 11a, 11b and mirrors 18a, 13b. A beam of light from each lamp is focussed by its associated lens and mirror through an vaperture in a plate 19a or 19h, and through an aligned aperture a or 80h in the wall of housing 65 upon one or the other of the parts 23a, 23h of the pattern.
  • the plates 19a, 19h, respectively, are supported on the inner surface of the wall of the housing and are positioned adjustably by means of screws Bla, Sib so that the light 'beams may strike the parts of the pattern at the de sired spots.
  • Light from the spots is reflected through the apertures 80a, 80h into passages ma, B2b to movabie mirrors 83a, 83h by which it is deflected intopassages 84a, 84h to stationary mirrors 85a-, 85h which direct it to the photoelectric cell .14.
  • the scanning means is operable alternately at the two spaced points on the pattern, that is, in the construction illustrated in Figure 3, the optical systems are alternately operative so that the scanning of one part of the pattern alternates with the scanning of the other part.
  • the optical system which includes the mirror 83a is effective and part 29a of the pattern is being scanned.
  • the first optical system is rendered inoperative and the second system including the mirror 83h becomes eiective.
  • This change in the operation of the scanning means is accomplished by movements of the mirrors 83a and 63D effected through a latch mechanism by the trip shaft 65.
  • the mirrors 83a and 83h are pivotally mounted at 86a, 86D, respectively, in the housing and are provided with arms 81a, 81h acted on by springs 88a, 88h connected to the arms and to studs 89a, 89h attached to the housing.
  • the arms are provided with tails 90a, 90b, respectively, movable between the ends of pairs of adjustment screws attached to the wall of the housing and generally designated 91a, 9th, respectively.
  • Each arm 81a, 81b is then connected by a link 92a, 92h to arms 93a, 93h on a rock shaft 94 journaled in the housing, the shaft 94 .i extending through the top of the housing and carrying a bell crank 95 having an opening 96 in one leg, the other leg having spaced aperlib is ineffective for the purpose.
  • a block 99 similar to block 41 is mounted on the rod 49 and is provided with spring members
  • This block is provided with a rod 0
  • the optical systems are alternately effective and the scanning action shifts from one part of the pattern to the other whenever there is a reversal in the movement of the housing 66.
  • the housing is hung from the carriage 33 by means of a link
  • Each of the parallel links is pivotally mounted at one end of the housing and its other end has a hub through which passes one of the rods 34.
  • .04b are connected by springs
  • the springs are in tension and thus tend to swing the links to shift the housing to the right, as seen in Figure 5. In this movement, the housing is kept from turning about a longitudinal axis by the pairs of links.
  • the housing At its end adjacent the pattern support, the housing is provided with a pair of rollers
  • the pattern employed has areas of different shading and variations in the pattern thus affect the action of the photoelectric cell 14.'
  • This cell is connected in a circuit
  • the means by which the driving connections are reversed and the mirrors 83a, 93h put alternately into operation are independent of one another.
  • the shifting action with respect thereto may be more rapid than the shifting of the driving connections. It is, therefore, desirable to employ the separate shifting means for the mirrors and drive so that the change from one mirror to the other will not be delayed by the slower action of the shift of the driving means.
  • a single photoelectric cell and two complete optical systems each including a light source are employed, but it will be readily appreciated that other arrangements may be employed, as, for example, separate photoelectric cells may be used for the two scanning points, the cells being put alternately into operation by shifting the polarizing potential from one cell to the other as the scanning is shifted from one point to the other.
  • a single lamp may be employed with shutters operated so ⁇ as to render the optical systems alternately operative.
  • two lamps may be employed and the shift from one scanning spot to the other may be accomplished by switching the lamps alternately into action instead of shifting the mirrors of the optical systems.
  • direct contact apparatus may be employed and an embodiment of the invention in which direct contact elements are used is illustrated in Figures 9-12, inclusive.
  • the pattern drum has a cylindrical surface of electroconductive material, and is connected in a circuit
  • 4b are then made of electroconductive material with the figures
  • the housing 66 carries contact members ila,
  • Each of these rollers is mounted for rotation in a block 8 on the end of a rod H9 supported in a block
  • 9 are connected by lines
  • 24a, i24b is carried by a collar
  • This rock shaft is provided at its upper end with an arm
  • correspond generally in construction and mode of operation to the branch arm 52, detent 60, and collar 6
  • 33 which carries a split nut
  • 33 are connected by a spring member
  • the pattern parts are charged at all times and the contact elements Illa,
  • 26 is in contact with but one of the terminal fingers
  • the contact element explores the pattern, current flows ⁇ through the pattern and contact element whenever the element is engaged with an electroconductive portion of the pattern sheet, and whenever the contact member engages an insulated portion of the pattern sheet, no current ows.
  • the current through the pattern sheet and contact elements is of relatively small value,.and, as ⁇ in the case ⁇ of" the photoelectric scanning means, the current is amplified in the amplifier
  • the pattern and scanning mechanism control the knitting of a single color thread and if a plurality of colors are present in the design, a plurality, of patterns and their associated scanning means and control devices will be used.
  • the patterns may be mounted on the pattern drum in their entirety or they may be divided into stripsl each of which represents a single line of the pattern, with the strips arranged longitudinally along the drum and grouped according to lines in the pattern. With the patterns divided into strips mounted on a single drum, each strip representing a single color is scanned by a separate scanning mechanism controlling the operation of a separate control device.
  • the several scanning mechanisms are mounted angularly about the drum so as to scan the pattern in sequence, and the control devices are likewise spaced with reference to the machine which they control.
  • the additional scanning mechanisms are mounted in position in any desired way and appropriately driven from the shaft 3
  • the scanning of one part of the pattern proceeds to completion before the scanning of the other part begins, and the scanning operation of each part always starts at the same point.
  • the scanning of the part l29a. of the pattern always proceeds from top to bottom, and the scanning of' part 29h always proceeds from bottom to top. Accordingly, at the.
  • the upper optical system becomes effective, and, at this time, the beam of light from the lower lamp 15a is directed upon the pattern/ part 29a at its extreme upper edge at the point designated I 4
  • the scanning point follows a downward helical track on the pattern surface, and when the spot has reached the extreme lower edge of the pattern atthe point
  • the aperture in the plate 1'9b is so positioned as to direct light on the spot
  • the scanning spot travels in a generally helical upward direction on thepart 29h until the point
  • the pattern is always scanned in thel same sense, and the design thus always appears in proper position on the fabric being produced. If the pattern were not subdivided the two scanning spots alternately effective were not employed, it would frequently happen that at the completion of a scanning operation, the next scanning operation would start at the wrong side of the pattern, and this would result in an inversion of the figures of the design in the nished product. No such inversion takes place with the control apparatus described.
  • the drum and pattern Since the carriage and pattern have a compound rotary and reciprocating relative movement so that the scanning spot travels along a generally helical path first on one part of the pattern and then on the other, the pattern on the pattern sheet must be so formed that the desired effect is obtained with this helical movement.
  • the desired result is most conveniently achieved by mounting the pattern sheets on the drum with theirl ends meeting, but offset by the width of the track, the offsetting of the sheets being reversed.
  • the drum is preferably provided with guide ribs
  • the two parts of the pattern are mounted on a single drum and the carriage is provided with scanning means including a. pair of optical systems both directed y nately into operation as above described.
  • construction illustrated is preferred, however, because of the saving in space and the simplification of the driving means for the pattern.
  • means may be provided, if desired, for indicating the progress of the operation of the machine being controlled.
  • This object is accomplished in the devices illustrated by mounting a scale
  • 41 extends close to the surface of the pattern support so as to provide a pointer reading on scale
  • the scales used are subdivided into units in correlation with the pattern employed which is in turn coordinated with the machine being controlled.
  • 46 when the apparatus is used with a circular knitting machine, the scale
  • 43 is not readable at normal full-speed operation but is used during low speed tests.
  • an apparatus for controlling the operation of a textile machine including an endless pattern, means for scanning the pattern, said means being operable alternately at spaced points on the pattern, means for giving the pattern and scanning means a relative compound rotary and reciprocating movement, and means for periodically changing the operation oi' the scanning means from one scanning point to the other.
  • an electrically operated control device for controlling the operation of a textile machine
  • a source of power for said device for controlling the delivery of power to said device
  • means for controlling the delivery of power to said device including an endless pattern, means for scanning the pattern, said means including a pair of elements operable alternately at spaced points on the pattern, .means for giving the pattern and scanning means a relative compound rotary and reciprocating movement, and means for periodically placing the active element of the scanning means rout oi operation and the inactive element in operation.
  • an electrically operated control device for controlling the operation of a textile machine
  • means for controlling the delivery of power to said device including an endless pattern, means for advancing the pattern past a scanning zone, means in said zone for scanning the pattern, said means being alternately operable at spaced points on the pattern, means for giving the scanning means a reciprocating movement from side to side of the pattern, and means for changing the operation of the scanning means from one scanning point to the other whenever the direction of movement of said scanning means changes.
  • an electrically operated control device for said device. and means for controlling the delivery of power to said device including a pattern of cylindrical form, means for rotating said pattern, means for scanning said pattern, said means being operable alternately at spaced points on thepatern, means for giving the scaning means a reciprocating movement from side to side of the pattern, and means for changing the operation of the scanning means from one scanning point to the other whenever the direction of movement of the scanning means changes.
  • the combination oi an electrically operated control device, a source of power for said device, and means for controlling the delivery of power to said device including an endless pattern, means for scanning the pattern, said means being operable alternately at spaced points on the pattern, means for giving the pattern and scanning means a relative compound rotary and reciprocating movement at a rate bearing a predetermined relationto the operation of said machine, and means for changing the operation of the scanning means frm one scanning point to the other whenever a change of direction occurs in said relative reciprocating movement.
  • an apparatus for controlling the operation of a textile machine including a pattern subdivided into two endless parts, means for scanning the pattern, said means being operable alternately at spaced points one on each part of the pattern, means for giving the pattern and scanning means a relative compound rotary and reciprocating movement, and. means for changing the operation of the scanning means from the scanning point on one part of the pattern to the scanning point on the other part whenever a change of direction occurs in said relative reciprocating movement.
  • an electrically operated control device for controlling the operation of a textile machine
  • means for controlling the kdelivery of power to said device including a pattern subdivided longitudinally into two endless parts, means for scanning the pattern, said means being operable alternately at spaced points one on each part of the pattern, means for rotating the parts of the pattern in unison, means for giving the scanning means a reciprocating movement from side to side of the pattern, and means for changing the operation of the scanning means from the scanning point on one part of the pattern to the scanning point on the other part whenever a change of direction in the movement of the scanning means occurs.
  • an electrically operated control device for controlling the operation of a textile machine
  • means for controlling the delivery of power to said device including a pattern subdivided longitudinally into two complementary endless parts, one part being reversed relative to the other, means 'for advancing said parts in unison, means for scanning the pattern, said means being operable alternately at spaced points one on each part of the pattern, means for giving the scanning means a reciprocating movement from side to side of said parts, and means for changing the operation of the scanning means from the scanning point on one part' of the pattern to the scanning point on the other part whenever a change of direction occurs in said reciprocating movement.
  • an electrically operated con-trol device a source oi power for said device, and means for controlling the delivery of power to said device including a pattern subdivided into twov endless parts of cylindrical form, means for scanning said pattern including a 'pair of elements operable alternately one on each part of the pattern,
  • an electrically .operated ⁇ control device for controlling the operation of a textile -machine
  • a source of power for said device for controlling the delivery of power to said device
  • means for controlling the delivery of power to said device including an endless pattern, means for scanning said pattern, said means being operable alternately at spaced points on the pattern, means for giving the pattern and scanning means a relative generally helical periodically reversing movement, and means for changing the operation of the scanning means from one scanning point to the other whenever the di- I rection of said relative movement is reversed.
  • an apparatus fortcontrolling the operation of a textile machine 'the combination of an electrically operated contrbl device, a source of power for said device, and Imeans for controlling the delivery of power to said device, including a pattern' subdivided intoi, two endless parts, means for scanning the pattern including a pair of elements operable alternately one on each part ofthe pattern, means or giving the pattern and scanning means a"y relative generally helical movement which changes direction whenever one part of the pattern has been completely scanned, and means for placing the active elevment of the scanning means out of operationA andthe inactive element in operationv whenever a change of 1 direction occurs in said helical movement.
  • an electrically operated control device and means for supplying thereto a photoelectric current
  • said means including a photoelectric cell, an endless pattern, means for scanning the pattern operable alternately at spaced points on 'the pattern, lsaid means controlling said cell, means for giving the pattern and scanning means a relative generally helical periodically reversing movement, and means for ⁇ changing the operation of the scanning means from one scanning point to the other whenever the direction of said relative movement is reversed.
  • an apparatus for controlling the operation of a textile machine the combination of an electrically operated control device, and means for supplying thereto a photoelectric current, saidlmeans including a photoelectric cell, an endless pattern, means for delivering to said cell light reflected from said pattern, said delivering means being operable alternately at spaced points on the pattern, means for giving vsaid 1tion of a textile machine, the combination of an electrically operated control device, and means fory supplying thereto a photoelec-tric current, said means including a photoelectric cell, an endiesspattern, a source of light, means for directing light from said sourceto said pattern at spaced points, separate means for delivering light reflected from said source to said cell, said separate means ,being alternately operable, means for imparting varelative movement to said pattern and said light directing means whereby said spacedfpointsl and pattern have a relative generally helical movement, and means operating whenever one of said points reaches the edge of the pattern for placing the active light delivering means out oi
  • said scan- ⁇ ning means being operable alternately at spaced points on the pattern, means for giving the pattern and scanning means a relative generally helical movement which reverses its direction Whenever the pattern is scanned to an edge thereof, and means operating whenever the direction of said moyement changes to change the operation of the scanning means from one scanning point to the other.
  • an electrically operated control device and means for supplying powerto said device in accordance with variations in a pattern
  • said means including an endless pattern subdivided longitudinally into two complementary parts, a photoelectric cell, means for scanning said pattern and delivering light reflected therefrom -to said cell, said means being operable alternately at two points one on each part of the pattern, means for giving the pattern and scanning means a relative generally helical movement which changes direction whenever one of said points reaches the extreme edge of the pattern, and means for changing the operation of said scanning means from one point to the other whenever the direction of said helical movement changes.
  • an electrically operated control device and means for supplying power to said device in accordance with variations in a pattern
  • said means including a pattern formed in two parts, said parts having opposite helical tracks, means for scanning said pattern including a pair of elements operating one on each track and in alteration, and means for giving the pattern and scanning means a relative vgenerally helical movement which periodically reverses, whereby one or the other of said elements is operating along its associated track at all times during said mlovement.
  • an electrically operated control device and means for supplying power to said device in accordance with variations in a pattern including a pattern of cylindrical form, means for rotating the pattern, means for scanning the pattern including means for directing light upon said pattern at spaced points, a photoelectric cell, alternately operating means for delivering reflected light from each of said points to the cell, means for moving the scanning means from side to side oi the pattern as the latter rotates, and means operating ateach change of direction in the movement oi' the scanning means to place the inactive delivering means in operation and to put the active delivering means out of operation.
  • an electrically operated control device and means for supplying power to said device in accordance with variations in a pattern
  • a pattern drum carrying endless pattern sheets thereon, said sheets carrying complementary portions of the pattern
  • means for rotating the drum a support reciprocating parallel to the axis of the drum as the latter rotates, a photoelectric cell on the support, means on the support for directing light upon both pattern sheets, means on the support for delivering reilected light to said photoelectric cell -from both sheets, and means operable when the direction of reciprocating movement changes for rendering one of said delivering means inoperative and the other operative.
  • an electrically operated control device and means for supplying current to saiddevice in accordance with the variations of a pattern
  • means for rotating said pattern sheets a support reciprocating along a path parallel to the axis of each sheet, a photoelectric cell on the support, separate means on the support for delivering to the cell light reected from. spaced points one on each sheet, and means operable at the ends of the path o! reciprocation of said housing for rendering one light delivering means operative and the other inoperative.
  • an electrically operated control device and means for supplying current to said device in accordance with the variations of a pattern including a pair of pattern sheets supported in cylindrical form and carrying Complementary portions of a pattern, a pair of contact elements one en gaging each sheet, means for giving said elements and sheets a relative generally helical movement which periodically reverses direction, an electric circuit including said sheets, elements, and control device, and means operable whenever said relative movement reverses direction for rendering one element operative and the other inoperative.
  • an electrically operated control device and means for supplying current thereto in accordance with the variations in a pattern including an endless pattern having electroconductive and insulating areas thereon, a pair oi contact elements engaging said pattern at spaced points, means for giving saidelements and pattern a periodically reversing generally helical relative movement, an electric circuit including said contact elements. pattern, and control device, and means operable whenever said relative movement reverses for rendering one element operative and the other inoperative.
  • a scanning mechanism the combination of a support, means for reciprocating the support, a pair of scanning elements on said support, and means operable at the ends oi the path of reciprocation of said support for rendering one element operative and the other inoperative.
  • a scanning mechanism the combination of a support, a photoelectric cell on said support, a pair of means on said support for delivering to said cell light reected from spaced points on a pattern surface, and means for periodically rendering one means of said pair operative and the other inoperative.
  • a scanning mechanism the combination oi' a support, a photoelectric cell on said support, a pair of means on said support for directing light upon a pattern surface at spaced points, a pair of means on said support for delivering to said cell light reiiected from said points on said surface, means for reciprocating said support, and means operable at the ends oi' the path of reciprocation of said support for rendering one delivering means operative and the other inoperative.
  • a scanning mechanism the combination of a pair of continuously operating driving means. a support guided for rectilinear movement, a pair of scanning elements on said support, a connection between the support and one of said drivingmeans, one oi said driving means being operable to move the support in one direction and the other in the opposite direction, means operable at the ends of the path of travel of the support to shift the connection from one driving means to the other, and means operable at the ends of the path of travel of the support to render one scanning element operative and the other inoperative.
  • a scanning mechanism the combination of a carriage guided for rectilinear movement, a pair of continuously rotating screws, a photoelectric cell on the carriage, a pair of means on the carriage for delivering to the cell light reiiected from spaced points on a pattern surface, means for controlling the delivering means and operable' to render them alternately operable, a nut on the carriage movable alternately into engagement with the screws to effect a driving connection i'or the carriage, said screws being operable to move the carriage in opposite directions, and means operating at the ends of the path of travel of the carriage to shift the nut fran one screw to the other and to actuate the control means.
  • a scanning mechanism the combination of a photoelectric cell, means for directing light upon spaced spots on a pattern surface, a pair of means for delivering to the cell light reected from the respective spots, and means for periodically rendering one delivering means inoperative and the other operative.
  • a pattern sheet subdivided into two endless parts, said parts bearing complementary portions of a repeat oi' the design, said portions of the repeat being reversely arranged, with reference to a line extending lengthwise of the repeat, on the parts of the sheet.
  • a pattern sheet subdivided longitudinally into two parts, both of which are supported in cylindrical form and on a common axis, said parts bearing complementary portions of the design which are reversed relative to said axis.
  • means for causing a relative movement of said device an'd needles during which said device and needles come successively into operating relation and means for supplying current to said device to operate the latter in accordance with variations in a pattern, including an endless pattern element, means for scanning said element operable at spaced points thereon, means for giving the pattern element and scanning means a compound rotary and reciprocating relative movement, and means for periodically changing the operation of the scanning means from one point on the pattern element to the other during said relative movement.
  • a carriage a pair of driving means for the carriage, said means being operable to move the carriage in opposite directions along a rectilinear path, a connecting device movable between two positions to connect the carriage to the driving means alternately, a latch operable to hold the device in either of its positions, a member for shifting the connecting device from either position to the other.
  • means operating at the ends oi the path of travel of the carriage .i'or releasing the latch. a spring for actuating said member, and means operated by the movement of said carriage for storing energy in said spring and including a revolving member engaging the spring and lying at a dead center relativo to the movement oi' said carriage when the latch is released.
  • a carriage a pair ol scanning elementsthereonP a pair of driving means for the carriage operable to move the carriage in opposite directions along a rectilinear path, a connecting device movable between two positions to connect the carriage to the driving means alternately, means operable at the ends of the path of travel of the carriage to shift the connecting device from one position to the other, a yielding connection between the device and the shitting means, and means operable at the ends oi said path to render one of the scanning elements inoperative and the other operative.
  • a scanning mechanism the combination oi a movable support for a ⁇ pattern, a pair of continuously operating driving means, e. carriage guided for rectilinear movement adjacent said support, a pattern scanning element on said carriage, a connection between the carriage and one of said driving means, and means operable at the ends oi the path oi travel o the carriage to shift the connection from one. driving means to the other, one of said driving means being operable to move the carriage in one direction and the other in the opposite direction.
  • driving means e. carriage guided for rectilinear movement adjacent said support, a pattern scanning element on said carriage, a connection between the carriage and one of said driving means, and means operable at the ends oi the path oi travel o the carriage to shift the connection from one. driving means to the other, one of said driving means being operable to move the carriage in one direction and the other in the opposite direction.
  • apparatus for controlling the operation of a textile machine, the combination of a plurality oi' electrically operated control devices, a source of power, .and means for controlling the delivery of power trom the source to the respeo tive devices including a pattern, a plurality of scanning mechanisms soannilfte the pattern consecutively, and means fior giving the pattern and scanning mechanisms e generally helical relative movement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Looms (AREA)
US92112A 1936-07-23 1936-07-23 Textile machine Expired - Lifetime US2158536A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DENDAT745181D DE745181C (cs) 1936-07-23
US92112A US2158536A (en) 1936-07-23 1936-07-23 Textile machine
CH208170D CH208170A (de) 1936-07-23 1937-07-21 Maschine zur kontinuierlichen Herstellung gemusterter Textilwaren.
GB20412/37A GB497106A (en) 1936-07-23 1937-07-23 Improvements in and relating to knitting machines
FR824764D FR824764A (fr) 1936-07-23 1937-07-23 Machine textile pour la fabrication d'étoffes façonnées

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US92112A US2158536A (en) 1936-07-23 1936-07-23 Textile machine

Publications (1)

Publication Number Publication Date
US2158536A true US2158536A (en) 1939-05-16

Family

ID=22231675

Family Applications (1)

Application Number Title Priority Date Filing Date
US92112A Expired - Lifetime US2158536A (en) 1936-07-23 1936-07-23 Textile machine

Country Status (5)

Country Link
US (1) US2158536A (cs)
CH (1) CH208170A (cs)
DE (1) DE745181C (cs)
FR (1) FR824764A (cs)
GB (1) GB497106A (cs)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609553A (en) * 1949-01-11 1952-09-09 United Shoe Machinery Corp Machine cycle control system
US3035426A (en) * 1956-08-20 1962-05-22 Macqueen Kenneth Gordon Knitting processes and knitting machines
US3229482A (en) * 1963-04-10 1966-01-18 Wildt Mellor Bromley Ltd Patterning mechanism for knitting machines
US3263453A (en) * 1962-12-06 1966-08-02 Kirkland & Company Ltd A Circular knitting machines
US4804982A (en) * 1988-04-29 1989-02-14 Polaroid Corporation Printer having reversible driving mechanism
US20220243370A1 (en) * 2019-06-11 2022-08-04 Santoni S.P.A. A flat part for a knitting machine and a knitting machine comprising such flat part

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE912004C (de) * 1952-02-20 1954-05-24 Keller & Knappich Ges Mit Besc Zaehlschaltwerk fuer Rundstrickmaschinen, insbesondere zur Herstellung von Struempfen
DE1040735B (de) * 1952-06-11 1958-10-09 Elektro Feinmechanik Rundstrickmaschine mit Rippscheibe und Musterraedern
GB789125A (en) * 1955-03-07 1958-01-15 Mellor Bromley & Co Ltd Improvements in or relating to circular knitting machines
US2814937A (en) * 1956-02-17 1957-12-03 Wildman Jacquard Co Pattern means for knitting machines
DE1276857B (de) * 1960-07-02 1968-09-05 Erwin Schumm Mustervorrichtung fuer Strickmaschinen
DE1269286B (de) * 1962-12-07 1968-05-30 Fouquet Werk Frauz & Planck Hauptschaltapparat fuer Rundraenderstrickmaschinen
DE1303938B (de) * 1963-05-31 1980-02-07 Ausscheidung aus \2 69 762 Edouard Dubied & Cie SA, Neuchatel (Schweiz) Nadelwählvorrichtung für Strickmaschinen

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609553A (en) * 1949-01-11 1952-09-09 United Shoe Machinery Corp Machine cycle control system
US3035426A (en) * 1956-08-20 1962-05-22 Macqueen Kenneth Gordon Knitting processes and knitting machines
US3263453A (en) * 1962-12-06 1966-08-02 Kirkland & Company Ltd A Circular knitting machines
US3229482A (en) * 1963-04-10 1966-01-18 Wildt Mellor Bromley Ltd Patterning mechanism for knitting machines
US4804982A (en) * 1988-04-29 1989-02-14 Polaroid Corporation Printer having reversible driving mechanism
US4868586A (en) * 1988-04-29 1989-09-19 Polaroid Corporation Reversible driving mechanism for electronic printer
US20220243370A1 (en) * 2019-06-11 2022-08-04 Santoni S.P.A. A flat part for a knitting machine and a knitting machine comprising such flat part

Also Published As

Publication number Publication date
DE745181C (cs)
GB497106A (en) 1938-12-13
CH208170A (de) 1940-01-15
FR824764A (fr) 1938-02-16

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