US1812562A - Shuttleless loom for weaving - Google Patents

Shuttleless loom for weaving Download PDF

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Publication number
US1812562A
US1812562A US387171A US38717129A US1812562A US 1812562 A US1812562 A US 1812562A US 387171 A US387171 A US 387171A US 38717129 A US38717129 A US 38717129A US 1812562 A US1812562 A US 1812562A
Authority
US
United States
Prior art keywords
weft
gripping
thread
shaft
severing
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
US387171A
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English (en)
Inventor
Shimwell Oliver
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Platt Brothers and Co Ltd
Original Assignee
Platt Brothers and Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Platt Brothers and Co Ltd filed Critical Platt Brothers and Co Ltd
Application granted granted Critical
Publication of US1812562A publication Critical patent/US1812562A/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
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/40—Forming selvedges
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/36—Measuring and cutting the weft

Definitions

  • This invention relates to what are known as shuttleless looms for weaving, and particularly to the arrangement described in prior Patent 'No. 1,571,878 wherein the weft threads are drawn out at the opposite sides of the loom into loop form by endless chains which carry guides which pass into the path of the weft threads, each stretched between two weft gripping and severing devices disposed at the opposite sides of the loom.
  • deflectors have been which draw out the thread in the legs of the loop to increase the lengths thereof. 4
  • the invention comprises the arrangement of the thread gripping and severing means for each leg of the loop adjustable away from and towards the extreme position towhich the yarn is carried during'the formation of theloops.
  • the invention further comprises the improved constructions and' arrangements of parts hereinafter described and claimed.
  • Figure 1 is a side elevation and Figure 2 a front elevation of the loop forming mecha nism at one side of a loom, constructed and arranged in one convenient form in accordance with my invention.
  • Flgure 3 is an enlarged new of part of I the mechanism illustrated in Figures 1 and 2.
  • Figure 4 is a detail view of the thread tensioning means.
  • Figure 5 is a detail sectional plan view on the line A B of Figure 3.
  • Figure 6 is a detail inv rted sectional plan view on the line C D 0 Figure 3.
  • FIGS 7-10 illustrate diagrammatically the method by which the loops are formed.
  • Each frame a at its opposite ends provides journal bearmgs 0,01 for a shaft 0 rotated by the worm wheel f, worm g, gears h, i, from a sprocket wheel j.
  • brackets n which house yarn grip- OLIVER SHIMWEL L, 0F MANCHESTER, ENGLAND, ASSIGNOR, BY MESNE ASSIGNMENTS,
  • the bracket 0 also has located therein a. thread guide pwhich is freely journalle'd upon the shaft e andis turned to one or other side as indicated in Figure 6 by the mechan1sm which operates the yarn gripping and severing means.
  • the yarn gripping means comprise two aws g, 7", see Figure 6, the one 1" forming part of a bell crank lever pivoted about a pin 8 andhaving a spring (not shown as it comes behind the spring w, Figure 6) acting on the part t thereof to hold the jaw 1" closed on the aw g.
  • the yarn severing means comprise a fixed blade 35 and a movable knife blade-u forming part of a bellcrank lever, the other arm '0 of which is loaded by the spring 'w. .A spring at presses the blade u towardsthe fixed blade.
  • the gripper and cutter are operated by an arm y of a lever which bears upon a cam z keyed to the shaft e.
  • the first movement of the lever :1; moves the blade u;thereafter the gripper 1' is moved away from the fixed jaw g.
  • the lever y is fixed upon a-spindle 2 which forms its fulcrum and such spindle has secured thereon the arm 3 connected by the link 4 with the part 5 carrying the thread guide.
  • lever y turns also the thread guide from the position to the left in Figure 6 to the position to the right in that figure.
  • An endless chain 15 passes over sprocket wheels j, 16, 17, 18 and 19.
  • the sprocket wheel 17 has its shaft rotated by the chain 20 driven from the prime motion shaft 21.
  • the weft yarn is upon spools or bobbins as 22, located one at each side of the machine. It is fed into the machine through a yarn tensioning device shown in detail in Figure 4 which comprises two guide eyes 23, 24 with a friction surface or pad 25 between.
  • a yarn tensioning device shown in detail in Figure 4 which comprises two guide eyes 23, 24 with a friction surface or pad 25 between.
  • the thread is then drawn out into loop form by such hooks as shown in Figure 8.
  • the upper gripper r and also the blade u adjacent thereto are now closed and one leg of the loop is cut, such leg being transferred into the warp threads by the weft carrier 28 shown in Figures 1 and 2.
  • the portion of the loop adjacent to the side of the cloth is always passed into the warp threads first.
  • the lower gripper is opened to free the other leg of the loop which is transferred into the warp threads by the weft carrier after it has been returned from the opposite side of the warp threads by the weft carrier after it has been returned from the opposite side of the warp threads.
  • the end of the thread from the bobbin 22 is now held in the upper grip 'ier.
  • bracket n and 0 in which the yarn gripping and severing means for the two ends of the 100p are carried are'made adjustable upon the frame a by means of the elongated slots is, m through which the bracket securing bolts ass. therefore, in Figure l the bracket n moved towards the bracket 0, or both brackets moved higher up the frame a, the length of yarn in each loop will be increased whilst if one or both of the saidbrackets be lowered upon the frame, the length of yarn in the loops will be reduced.
  • 29 is a depresser operated by suitable means for lowering the legs of the loop into the path of the weft carrier 28.
  • 30 is the warp thread carrying beam. The tension upon the chain 15 can be adjusted by means of the adjustable sprocket wheel 19.
  • weft gripping and severing devices means for drawing out the weft thread stretched between the gripping and severing devices into looped form, a weft carrier for carrying the weft thread through the warp shed, and a guide member adapted to enter the closed end of each loop as it is formed and to hold the latter.
  • weft gripping and severing devices means for drawing out the weft thread stretched between the gripping and severing devices-into looped form, a weft carrier for carrying the weft thread through the warp shed, said drawing out means in- 4.
  • weft gripping and severing devices means for drawing out the weft thread stretched between the gripping and severlng devices into looped form, a weft carrier for carrying the weft thread through the warp shed, a drive shaft operating the gripping and severing devices, and a guide nlllerptber for the weft thread actuated by the s a 5.
  • a movable weft thread guide carried and operated by the said shaft to properly position the weft thread with respect to the gripping and severing devices during the formation of l00ps.
  • weft gripping and severing devices means for drawing out the weft thread stretched between the gripping and severing devices into looped form, a weft carrier for carrying the'weft thread through the warp shed, a shaft coupled with the a driving connection between the shaft and the gripping and severing devices, and a weft thread guide actuated by the shaft for displacing the weft thread with respect to the gripping and severing devices.
  • weft gripping and severing devices means for drawing out the weft thread stretched between the gripping and severing devices into looped form, a weft carrier. for carrying the weft thread through the warp shed, a shaft coupled with the drawing out means, cams on said shaft for operating and a weft thread guide actuated by said shaft.
  • weft gripping and severing devices means for drawing out the weft thread stretched between the gripping and severing devices into looped form, a weft carrier for carrying the weft thread through the warp shed, a shaft coupled with t e drawing out means, a driving connection between the shaft and the gri ping and severing devices, and thread i e members act-w ated by said shaft locate respectively, in advance and following the drawing out means with reference to the direction of movement of the weft thread.
  • weft gripping and severing devices means for drawing out the weft thread stretched between the gripping and severing devices into looped form, a weft carrier for carrying the weft thread through the warp shed, a shaft coupled with the drawing out means, and guide members for the weft thread arranged, respectively, in advance of and following the drawing out means, with reference V to the direction of movement of the weft thread.
  • weft gripping and severing devices means for drawingout the weft thread stretched between the gripping and severing devices into looped form, a weft carrier for carrying the weft thread through the warp shed, a drive shaft operating the gripping and severing devices, a guide member for the weft thread actuated by the shaft, and means for adjusting the weft gripping and severing devices axially along said shaft,
  • weft gripping and severing devices means for drawing out the weft thread stretched between the gripping and severing devices into looped form, a weft carrier for carrying the weft thread through the warp shed, a shaft coupled with the drawing out means, a driving connection between the shaft and the ipping and severing devices, and threaf guide' members actuated'by said shaft located, respectively, in advance and following the drawing out means with reference to the directionof movement of the weft thread, and means for adjusting the weft gripping and severing devices axially along said shaft.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US387171A 1928-10-17 1929-08-20 Shuttleless loom for weaving Expired - Lifetime US1812562A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30033/28A GB321794A (en) 1928-10-17 1928-10-17 Improvements relating to shuttleless looms for weaving

Publications (1)

Publication Number Publication Date
US1812562A true US1812562A (en) 1931-06-30

Family

ID=10301173

Family Applications (1)

Application Number Title Priority Date Filing Date
US387171A Expired - Lifetime US1812562A (en) 1928-10-17 1929-08-20 Shuttleless loom for weaving

Country Status (5)

Country Link
US (1) US1812562A (de)
CH (1) CH141503A (de)
DE (1) DE507043C (de)
FR (1) FR680648A (de)
GB (1) GB321794A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3808777A1 (de) * 1988-03-16 1989-10-05 Wangner Gmbh Co Kg Hermann Vorrichtung zur wahlweisen zufuehrung eines von mehreren schussfaeden zu einem greiferprojektil

Also Published As

Publication number Publication date
FR680648A (fr) 1930-05-02
DE507043C (de) 1930-09-12
GB321794A (en) 1929-11-21
CH141503A (de) 1930-08-15

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