US3490499A - Weft thread suction device in looms - Google Patents

Weft thread suction device in looms Download PDF

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Publication number
US3490499A
US3490499A US711704A US3490499DA US3490499A US 3490499 A US3490499 A US 3490499A US 711704 A US711704 A US 711704A US 3490499D A US3490499D A US 3490499DA US 3490499 A US3490499 A US 3490499A
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US
United States
Prior art keywords
chamber
suction device
looms
weft thread
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US711704A
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English (en)
Inventor
Jaime Picanol
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Individual
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Individual
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Filing date
Publication date
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Application granted granted Critical
Publication of US3490499A publication Critical patent/US3490499A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D45/00—Looms with automatic weft replenishment
    • D03D45/50—Cutting, holding, manipulating, or disposing of, weft ends

Definitions

  • a weft thread suction device for looms has a cylindrical chamber and a suction inlet formed in a wall of this chamber. Simple means are provided to adjust the axis of this inlet relatively to the axis of the chamber.
  • the same device may also suck up the ends of weft threads at right angles with the temples.
  • this suction device comprises a chamber having a prismatic axis, the suction pipe leading to the level of the bottom of said chamber and being externally provided with a means promoting the disposition of the ends of weft threads for their suction or their retention.
  • the present invention relates to improvements introducing, in the said suction devices, a substantial simplification increasing both the efficiency and the working rapidity.
  • the improvements according to the invention comprise essentially providing the inlet of the usual chamber in the form of a simple opening disposed at a level higher than that of the bottom of the chamber, said chamber being mounted so that the said opening is in front or approximately in front of the feeding magazine of the changing device.
  • Another feature of this invention consists in that the axis of the said opening is preferably .oriented to promote the turbulence in the chamber.
  • Another feature of the invention comprises condition ing the abutting edges of the said opening for varying or adjusting the orientation .of its axis.
  • FIGURE 1 shows as diagrammatically as possible a portion of the loom indicating the location of the suction device.
  • FIGURE 2 shows diagrammatically the essential constituting elements of the improved suction device according to the invention
  • FIGURE 3 is a radial section with a partial front view of the chamber to which are particularly applied the improvement according to the invention
  • FIGURE 4 is a section on the line IV-IV of FIGURE 3.
  • the suction device is shown diagrammatically by the proper suction chamber 1, the motor pump unit 2, the suction pipe 3 connecting the top of lid 4 of the said chamber 1 at the inlet of the pump of unit 2.
  • the suction pipe 3 connecting the top of lid 4 of the said chamber 1 at the inlet of the pump of unit 2.
  • the chamber 1 comprises substantially a bottom 7, the said lid 4 and a cylindrical body 8 generally made of a transparent material.
  • a prismatic axis 9 is fastened through its lower end at the center of bottom 7 and it is projected up to a distance from the upper edge of the cylindrical body 8.
  • the lid 4 has an outlet tubing 10 which is connected, through a flexible hose 11, with the said pipe 3 leading to the pump.
  • the cylindrical body 8 has, at a height H, an'opening 12 disposed in such manner that, when the said chamber is set in position, the said opening is disposed in front of the magazine 13 containing the pirns 14 feeding the underlying changing mechanism (not shown).
  • the said opening 12 is preferably outlined by a ring 15 having a spherical external surface, said ring being mounted in a frame consisting of two small plates 16-17 disposed on both sides of the corresponding portion of the wall of the tubular element 8, these plates having coaxial ports outlined by spherical surfaces so that the said ring 15 is fastened thereto with a more or less tight fit.
  • This arrangement allows to modify or to adjust very correctly the position of axis AB of the said opening 12 to bring it to a standstill in the most favorable position for forming air jets having a maximum efliciency. This adjustment will be made within predetermined limits +a-ot which are largely sufiicient for any eflicient position of the said axis A-B of the suction opening.
  • any suitable relative shape, dimension and position may be given to the said opening.
  • the said opening may be outlined as well by a fixed wall as by any wall having a suitable configuration to be adjusted or brought to a standstill in a correct position.
  • the invention relates to the assembly of the so improved suction device as well as to the chamber itself considered individually.
  • a weft thread suction device for looms comprising a chamber having cylindrical walls, a bottom and a lid, means supplying subatmospheric pressure to the interior of the chamber and means constituting a suction inlet to said chamber, the last-mentioned means comprising a direct passage extending through a cylindrical wall of spherical outer surfaces and supporting means fixed to said wall, said ring being mounted with a tight fit insaid supporting means.
  • said supporting means comprise two plates located opposite each other on said wall and having coaxial portions with spherical surfaces mating the spherical surfaces of said ring.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US711704A 1967-09-19 1968-03-08 Weft thread suction device in looms Expired - Lifetime US3490499A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE47210 1967-09-19

Publications (1)

Publication Number Publication Date
US3490499A true US3490499A (en) 1970-01-20

Family

ID=3840617

Family Applications (1)

Application Number Title Priority Date Filing Date
US711704A Expired - Lifetime US3490499A (en) 1967-09-19 1968-03-08 Weft thread suction device in looms

Country Status (8)

Country Link
US (1) US3490499A (xx)
CH (1) CH471919A (xx)
ES (1) ES351247A1 (xx)
FR (1) FR1556737A (xx)
GB (1) GB1225694A (xx)
LU (1) LU55682A1 (xx)
NL (1) NL6805187A (xx)
SE (1) SE342656B (xx)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2326905A (en) * 1943-02-27 1943-08-17 Crompton & Knowles Loom Works Pneumatic thread holder for looms
US2354284A (en) * 1942-03-23 1944-07-25 Crompton & Knowles Loom Works Pneumatic thread holder
US2431556A (en) * 1946-12-13 1947-11-25 Crompton & Knowles Loom Works Pneumatic thread holder for looms
US2463923A (en) * 1947-10-21 1949-03-08 Crompton & Knowles Loom Works Thread collector for weft replenishing looms
US2575853A (en) * 1950-05-25 1951-11-20 Crompton & Knowles Loom Works Pneumatic thread holder for weft replenishing loom

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2354284A (en) * 1942-03-23 1944-07-25 Crompton & Knowles Loom Works Pneumatic thread holder
US2326905A (en) * 1943-02-27 1943-08-17 Crompton & Knowles Loom Works Pneumatic thread holder for looms
US2431556A (en) * 1946-12-13 1947-11-25 Crompton & Knowles Loom Works Pneumatic thread holder for looms
US2463923A (en) * 1947-10-21 1949-03-08 Crompton & Knowles Loom Works Thread collector for weft replenishing looms
US2575853A (en) * 1950-05-25 1951-11-20 Crompton & Knowles Loom Works Pneumatic thread holder for weft replenishing loom

Also Published As

Publication number Publication date
CH471919A (fr) 1969-04-30
ES351247A1 (es) 1969-06-01
FR1556737A (xx) 1969-02-07
SE342656B (xx) 1972-02-14
LU55682A1 (xx) 1968-06-04
GB1225694A (xx) 1971-03-17
NL6805187A (xx) 1969-03-21

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