US3868650A - Readout device for fabric patterns for the formation of corresponding electric pulses, on hosiery machines - Google Patents

Readout device for fabric patterns for the formation of corresponding electric pulses, on hosiery machines Download PDF

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Publication number
US3868650A
US3868650A US432584A US43258474A US3868650A US 3868650 A US3868650 A US 3868650A US 432584 A US432584 A US 432584A US 43258474 A US43258474 A US 43258474A US 3868650 A US3868650 A US 3868650A
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United States
Prior art keywords
pattern
row
guideway
delivery
fabric
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Expired - Lifetime
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US432584A
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English (en)
Inventor
Mario Piro
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Selex Elsag Datamat SpA
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Nuova San Giorgio SpA
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C19/00—Methods or devices concerned with designing or making patterns, not provided for in other groups of this subclass
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B37/00—Auxiliary apparatus or devices for use with knitting machines
    • D04B37/02—Auxiliary apparatus or devices for use with knitting machines with weft knitting machines

Definitions

  • ABSTRACT A device for reading out the pattern of a fabric to be woven on a hoisery machine, in which the pattern is caused to advance stepwise under a plate having a transversally formed window capable of showing the fabric pattern row by row, a set of conducting tabs, two for each square of the pattern, and mounted on opposite sides of the row being checked, a light source for each pair of conducting tabs, a control circuit being connected to each pair of tabs, and an electrode for generating, when put in contact with one tab for the generation of an activation signal and, when put in contact with the confronting tab, the light source being lighted when the delivery of an activation signal is preset.
  • the pattern is usually divided into squares, each of which shows one mesh: each square will have, in addi tion, a colour which, properly read out and converted into an electric signal, will have the corresponding needle to become active in the machine for bringing the thread of preselected colour to make up the fabric.
  • the program is the means which, when properly read out, permits to deliver a plurality of signals, which are adapted to give an exact positioning to the needle controlling mechanical members, in hoisery machines. For example each read out row of the pattern will enable the pins exactly to be positioned along a generating line of the control cylinder for the needles in a mechanical Jacquard type machine.
  • the fabric pattern is the program which, when properly read out and processed permits to send to the actuator command electric pulses.
  • the present invention has the object of providing in a cheap and simple form a device adapted to carry out the readout ofa fabric pattern by converting it into corresponding electric pulses which can be controlled by an operator by means of a luminous display first to a storage, be it of a mechanical type or any other at choise; more particularly the invention intends to suggest a device which permits the quick and accurate readout of the pattern with a continuous possibility of check of the information to be delivered.
  • the device according to the invention comprises:
  • a guideway which supports slidably the fabric pattern sheet; a plate which can be superposed to said guideway and two pluralities of contact members arranged on two parallel rows perpendicularly to said guideway and between which a window is formed which permits the readout of a row of squares of said pattern; a plurality of light sources, each arranged in the vicinity of a couple of confronting elements of the two rows; means for manually actuating said contact members, the one or the other of a couple of confronting elements controlling a bistable'circuit either to actuate or deactuate the deliver of a signal which energizes one of said light sources, a storage member being further provided for storing the delivered signals.
  • FIG. 1 is a perspective view of the device according to the invention.
  • FIG. 2 is a cross-sectional view of a detail of the device of FIG. 1.
  • FIG. 3 is a circuit diagram of the device shown in FIGS. 1 and 2.
  • the strip pattern 11 is laterally guided, it being of the known type in which the meshes are shown as squares. and each square has the indications of actuation of a needle with a thread of a preselected colour.
  • the pattern is wrapped around rollers 12 and 13, which allow it normally to be fed forward according to the manner to be described later.
  • a plate 14 is hinged at 35 to the baseplate 10 and in the closed position rests on the pattern 11 to lay it flat; in the plate 14 there is formed a rectilinear slot 15 which permits the readout of a row of the squares of the pattern 11, which thus appears through it; at the sides of the slot 15 there are arranged tabs 16 and 17, each pair 16-17 corresponding to one of the squares of the row of the pattern which is seen through the slot 15.
  • Each tab corresponds to a contact on which an electrode can be placed to rest, having a conducting tip 18 carried by an insulating handlel9;
  • each microlamp is in correspondence with one square of the pattern 11.
  • FIG. 3 shows the circuit diagram of a circuitry which can be housed within the baseplate 10.
  • each of these logical circuits comprises a bistable multivibrator 27 equipped with an actuating input connected to the tab 16 and a deactivation or cancelling input connected to the output of an OR gate 28, one of whose inputs is connected to the tab 17.
  • Another input of the OR gate 28, together with the corresponding other input of the OR gates 28 comprises in the several logical circuits 25, is connected, conversely, through a delay element 29 (for example a single-shot multivibrator) to the output of a pulse shaper 30 (single-shot multivibrator) controlled by a reset pushbutton 31.
  • the bistable multivibrator 27 continued in each of the logical circuits 25 is equipped, in addition, with an output which is connected both to a pilot lamp 21 and to an input of a logical AND gate 32.
  • Another input of the latter, together with the corresponding other input of the AND gates 32 as contained in the several logical circuits 25, is connected, instead, to the output of the pulse shaper 30 (single-shot multivibrator).
  • each AND gate 32 is connected to a respective one of the inputs 1, .,n of the storage 26.
  • an actuation pulse is generated for the corresponding bistable multivibrator 27, which, changing its state, causes the lamp 21 to be lighted and an actuation signal to be preset at one input of the logical gate 32.
  • bistable multivibrator can, if desired, be restored to the original inactive state by completing the contact between the electrode 18 and the tab 17 associated with the same multivibrator.
  • the pulse shaper 30 in fact, delivers a signal which, beingadded to the one which is already present at the input of the several AND gates 32, causes the transfer of the storage 26.
  • the signal delivered by the pulse shaper 30v causes, moreover, through the OR gates 28, the resetting of all the bistable multivibrators 27 and the consequent restoration of the original at rest condition.
  • the operator can immediately check that all the lamps are lighted which light by transparence the squares concerned, and only those: if the check shows the absence of errors, the information can be sent to the storage by actuating the pushbutton 31 and an appropriate manipulation of the rollers 12 and 13 permits to place in the slots the next row of the pattern.
  • the nature of the storage 26 is, of course, a function of the kind of hosiery machine which is to be controlled; it can be, for example, of the magnetic type, card or perforated strip type; it can also be a kind of mechanical storage, that is, the amplified pulses can control actuators which preset in the appropriate manner control mechanical members of the machine.
  • each pulse as delivered due to the contact of. the electrode 18 with a tab16 can control, in fact, the introduction of a pin in its appropriate seating; each row of the pattern, in fact, corresponds to a row of seats arranged along the generating line of a cylinder.
  • a readout device fora fabric pattern and formation of the corresponding pulses comprising a guideway which slidably supports the pattern sheet in which a row' of meshes is represented by a row of reference symbols, a plate which can be superposed to said guideway, two pluralities of contact elements arranged on parallel row's perpendicular to said guideways and between which a window is opened which permits the readout of said pattern, a plurality of light sources, each arranged in the vicinity of a pair of confronting elements in the two rows: means of manual actuation of each of said contact elements, the one and the other element of a couple of confrontingelements controlling a bistable circuit to actuate or deactivate, respectively, the emission of an energizing signal for the corresponding light source, a storage member for the delivered signals being further provided.
  • a device characterized in that said contact elements are formed by conducting tabs and the actuation means are formed by an electrode integrally attached to a handle.
  • a device characterized by comprising means for controlling the delivery of signals to said storage member.
  • a device characterized by comprising additional controlmeans of the bistable circ'uits for discontinuing the signal delivery, operatively connected to said means for controlling the delivery of signals to said storage member, in the sense of being energized when they are energized, in an immediate sequential order.
  • a device characterized in that it comprises members for stepwise feeding forward the sheet in said guideway, so as sequentially to bring each row of reference symbols in registry with said window.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Knitting Machines (AREA)
US432584A 1973-01-11 1974-01-11 Readout device for fabric patterns for the formation of corresponding electric pulses, on hosiery machines Expired - Lifetime US3868650A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT19165/73A IT978121B (it) 1973-01-11 1973-01-11 Dispositivo di lettura di dise gni per tessuti e di formazione di impulsi elettrici corrispon denti su macdhine da maglieria

Publications (1)

Publication Number Publication Date
US3868650A true US3868650A (en) 1975-02-25

Family

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Application Number Title Priority Date Filing Date
US432584A Expired - Lifetime US3868650A (en) 1973-01-11 1974-01-11 Readout device for fabric patterns for the formation of corresponding electric pulses, on hosiery machines

Country Status (9)

Country Link
US (1) US3868650A (https=)
JP (1) JPS49108361A (https=)
CH (1) CH570491A5 (https=)
DD (1) DD109904A1 (https=)
DE (1) DE2400223A1 (https=)
ES (1) ES422151A1 (https=)
FR (1) FR2214303A5 (https=)
GB (1) GB1404114A (https=)
IT (1) IT978121B (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7159475B2 (en) 2004-02-27 2007-01-09 Honeywell International, Inc. Apparatus and method of sampling semivolatile compounds

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5349157A (en) * 1976-10-16 1978-05-04 Mitsuboshi Seisakusho Automatic flat knitting machine
JPS572473Y2 (https=) * 1980-04-03 1982-01-16
FR2692601A1 (fr) * 1992-06-17 1993-12-24 Wolff Lydia Appareil de lecture pour diagramme de tricot, de broderie, de crochet.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3644671A (en) * 1968-10-21 1972-02-22 Bunker Ramo Graphic data entry system
US3783642A (en) * 1971-03-23 1974-01-08 Stoll & Co H Method and apparatus for data transmission in knitting machines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3644671A (en) * 1968-10-21 1972-02-22 Bunker Ramo Graphic data entry system
US3783642A (en) * 1971-03-23 1974-01-08 Stoll & Co H Method and apparatus for data transmission in knitting machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7159475B2 (en) 2004-02-27 2007-01-09 Honeywell International, Inc. Apparatus and method of sampling semivolatile compounds

Also Published As

Publication number Publication date
JPS49108361A (https=) 1974-10-15
ES422151A1 (es) 1976-04-16
CH570491A5 (https=) 1975-12-15
GB1404114A (en) 1975-08-28
DD109904A1 (https=) 1974-11-20
IT978121B (it) 1974-09-20
DE2400223A1 (de) 1974-07-25
FR2214303A5 (https=) 1974-08-09

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