US3740971A - Construction of jack selectors in circular knitting machines - Google Patents

Construction of jack selectors in circular knitting machines Download PDF

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Publication number
US3740971A
US3740971A US00102711A US3740971DA US3740971A US 3740971 A US3740971 A US 3740971A US 00102711 A US00102711 A US 00102711A US 3740971D A US3740971D A US 3740971DA US 3740971 A US3740971 A US 3740971A
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United States
Prior art keywords
slit
jack
key
cylinder
circular knitting
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Expired - Lifetime
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US00102711A
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English (en)
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J Font
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Individual
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Individual
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    • 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
    • D04B37/04—Auxiliary apparatus or devices for use with knitting machines with weft knitting machines for inserting or adjusting pattern pins or like elements in pattern drums or wheels

Definitions

  • the machine is operating there is already being prepared in the workshop the key with the new arrangement of teeth in accordance with the design of the new fabric that is to be produced in a new phase of work, so that, without loss of time, at the very moment when the last yard of the fabric that was being woven is finished, the key that governed the selector during the job in question is withdrawn and is replaced by the new key with the new arrangement of teeth corresponding to the new design to be produced, and thus the new job is begun immediately, without any loss of time.
  • FIG. 1 is a partial section view of a jack selector constructed in accordane with the present invention.
  • FIG. 2 is a plan view of selectors, one of them partially in section.
  • FIG. 3 is a section view through the line III III of FIG. 2 of'the same selector.
  • FIG. 4 is a section view through the line IV IV of FIG. 3.
  • FIG. 5 is a section view through the line V V of FIG. 3. i
  • FIG. 6 is an elevation view vof a detail, on a larger scale, of the end of a spring and'its hook joined to the jack selectors.
  • the invention consists in the fact that a jack selector is controlled by a key (1) which is introduced into an axial opening (2) which for this purpose has been made in internal element (3) of a cylinder (4), and the teeth (5) of the key on emerging through the longitudinal groove (2) are brought face to face with the rear part of the jacks (6) of the selector, causing them to emerge from their position of rest.
  • the internal element (3) of the jack selector (4) is constituted by two half rods (7 and 8) with their hal head and foot, which face one another and are joined to one another leaving between both of them a double longitudinal opening (2), so that through one of them there emerges the edge of the key with the teeth (5) corresponding to the job to be done which select the selector jacks (6) pushing them outwards from their rest position.
  • the pedestal units (9 and 10) of the internal element (3) are joined to a cylindrical base (11) which has on its upper edge the lugs (35 and 36) situated diametrically disposed which are the check-piece separators of the longitudinal edges of the two parts brought face to face (7 and 8) which determine the longitudinal openings (2) of the internal element (3).
  • the cylindrical base (11) which completely unites the two parts (7 and 8) of the selector is joined to the pedestal units (9 and 10) by appropriate means such as screws (12) threaded into the corresponding holes with an internal helicoidal threading of the base (11) and whose prolongations are introduced into the threaded orifices (13) of each pedestal unit (9 and 10) of the internal element (3).
  • the head units (14 and 15) of the element (3) are joined and secured by a ring or hoop (16) just as in the pedestals (9 and 10).
  • a cover (19) is screwed which prevents the accidental emergence of the internal element (3) when the key (1) is withdrawn from its interior and in addition its central opening (20), of smaller diameter than the head (14 an 15) of the internal element 3) has two radial notches (21 and 22) in two opposite points and these have the purpose of determining the position of release of the key (1) introduced into the internal element (3) in order to permit its withdrawal.
  • the tension springs (24) of the selector jacks (6) are joined to the jacks not directly by one of their ends, but by means of a small hook (25) with a head (26) which can rotate within the narrowed axial cavity (27) of the end of the said spring 24), so that this head (26) can rotate and consequently does not produce breaking tensions of the end of the spring.
  • the internal element (3) will have on its internal pedestal signs indicating its position which can be seen from the outside through the appropriate aperture, for which purpose a sighting lens (28) may be employed.
  • the cylindrical base (11) of the element (3) has some angularly spaced notches (29) in which there is partially introduced a ball (30) housed in a radial adjusting screw (31) of the cylinder (4) and biased by an appropriate spring (32) and which serves to maintain temporarily the angular position of the internal element (3) in the interior of the cylinder (4).
  • the head of the key (1) has appropriate signalling marks, such as a notch (34) which indicates one of the positions of the element (3) in relation to the cylinder (4).
  • a jack selector device comprising, means defining a cylinder, two elongated elements mounted for rotation in said cylinder defining an axial slit therebetween open axially on opposite sides and at opposite ends for removably and interchangeably receiving different keys insertable individually, axially therein, a key insertable axially in said slit and having projections on opposite edges thereof for selection of said jack selectors when in use in said slit, said slit extending axially of said cylinder and dimensioned to allow said teeth of the individual keys inserted therein to project outwardly on opposite sides of said slit for engagement with selected ones of said jack selectors, said'selector device being disposed relative to said jack selectors close adjacent thereto to insure that when an individual key is inserted into said slit and rotated the teeth of one edge bear on respective surfaces of said jack selectors and actuate them axially for developing a selected
  • a circular knitting machine including means closing partially an end of said cylinder through which an individual key is inserted into said slit, the last-mentioned means having means retaining the key inserted in said slit and having notches to allow retraction of said key when disengaged from said surfaces of said jack selectors and for insertion into said slit, said notches being disposed angularly spaced from positions in which said key engages said surfaces of said jack selectors.
  • a jack selector device comprising, means defining a cylinder, means rotational in said cylinder defining an elongated slit open longitudinally on opposite sides and on opposite ends, a pattern-selector key insertable axially into said slit and having two edges with irregularities thereon corresponding to two differ ent selection patterns for selection of jacks when inserted into said slit for rotation thereof into two angularly spaced positions in which said edges thereon alternatively engage surfaces on said jack selectors for selecting a pattern of jacks corresponding to the irregularities on a corresponding edge, and said edges of said key extending outwardly from the open opposite sides of said slit.
US00102711A 1969-12-30 1970-12-30 Construction of jack selectors in circular knitting machines Expired - Lifetime US3740971A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES375635A ES375635A1 (es) 1969-12-30 1969-12-30 Perfeccionamientos en la construccion de selectores de jaksen maquinas circulares de genero de punto.

Publications (1)

Publication Number Publication Date
US3740971A true US3740971A (en) 1973-06-26

Family

ID=8454824

Family Applications (1)

Application Number Title Priority Date Filing Date
US00102711A Expired - Lifetime US3740971A (en) 1969-12-30 1970-12-30 Construction of jack selectors in circular knitting machines

Country Status (6)

Country Link
US (1) US3740971A (es)
BR (1) BR7025029D0 (es)
DE (1) DE2064561B2 (es)
ES (1) ES375635A1 (es)
FR (1) FR2077580B1 (es)
GB (1) GB1336747A (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789629A (en) * 1971-04-05 1974-02-05 Kirkland & Co Ltd A Pattern device for knitting machines
US3824809A (en) * 1972-03-11 1974-07-23 Camber Int Ltd Patterning mechanism for multi-feed circular knitting machines

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3727155C1 (de) * 1987-08-14 1988-11-10 Sipra Patent Beteiligung Einstellvorrichtung fuer Nadelauswahleinrichtungen mehrsystemiger Rundstrickmaschinen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789629A (en) * 1971-04-05 1974-02-05 Kirkland & Co Ltd A Pattern device for knitting machines
US3824809A (en) * 1972-03-11 1974-07-23 Camber Int Ltd Patterning mechanism for multi-feed circular knitting machines

Also Published As

Publication number Publication date
BR7025029D0 (pt) 1973-01-11
FR2077580B1 (es) 1978-06-02
ES375635A1 (es) 1972-05-16
DE2064561B2 (de) 1979-08-02
FR2077580A1 (es) 1971-10-29
GB1336747A (en) 1973-11-07
DE2064561A1 (de) 1971-07-22

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