US1767758A - Loom for weaving tufted pile fabrics - Google Patents

Loom for weaving tufted pile fabrics Download PDF

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Publication number
US1767758A
US1767758A US345647A US34564729A US1767758A US 1767758 A US1767758 A US 1767758A US 345647 A US345647 A US 345647A US 34564729 A US34564729 A US 34564729A US 1767758 A US1767758 A US 1767758A
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United States
Prior art keywords
loom
cutter blade
cutter
blade
block
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Expired - Lifetime
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US345647A
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English (en)
Inventor
Head Thomas William
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Individual
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Individual
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Publication of US1767758A publication Critical patent/US1767758A/en
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D39/00—Pile-fabric looms
    • D03D39/02—Axminster looms, i.e. wherein pile tufts are inserted during weaving

Definitions

  • This invention is for improvements in or relating to looms for weaving tufted pile fabrics, and refers to looms of the kind wherein the tufts are inserted in rows across 5 the fabric and are separated from their source of supply either before their insertion between the warp threads or after they have been bound into the backing of the fabric, and the invention applies more particularly [0 tothe cutter mechanism by which said tufts are severed from their source of supply.
  • the present invention has for its object 4 therefore to provide means whereby sufficient pressure to sever the tufts can be automatically applied to the cutter blades at all points across looms of wide widths without any undue strain or without unnecessarily increasing the size and weight of the cutter blade blocks.
  • the invention consists essentially, in an arrangement wherein. the shearing action of the cutter blades is governed by mutual spring pressure applied to the blades at spaced intermediate points in the width of I i the loom, this spring pressure being preferably applied to a plurality of blade sections disposed end to end to constitute one or other of the cutter blades.
  • Figure 1 is a fragmentary side elevation illustrating the tuft cutter mechanism of a loom in accordance with the invention.
  • Figure 2 is an inverted plan of the sectional outer cutter blade and its supporting block.
  • Figure 3 is a rear elevation of the sectional outer cutter blade and its supporting block as shown in Figures 1 and 2.
  • Figure 4 is an end elevation of the outer and inner cutter blades and their supporting blocks, in part section through a supporting stud in a plane corresponding to the line 44 of Figure 3.
  • Figure 5 is a cross-sectional elevation of the'outer cutter blade and its supporting block, the section being taken through a pressure spring on the line'55 of Figure 3.
  • Figure 6 is a cross-sectional elevation of the outer cutter blade and its supporting block, the section being taken through a slide on the line 66 of Figure 3.
  • Figure 7 is an inverted plan of the oute cutter blade andvits supportingblock in a modified form, While figure 8 is a rear elevation of the outer cutter blade and its supporting block as shown in Figure 7.
  • the opposed part of the cutting apparatus consists of a series of outer cutter blade sections fattached respectively to a'corresponding series of carrier plates 9 mounted endto end upon an outer supporting biock it extending across the loom and adapted for operation as required, the block 71. having for example terminal slides i which are accommodated within fixed guides j of a pair of brackets 70 and are movable therein under control of a pair of cam-actuated levers Z which are connected respectively by links 12?, to end pins n on the block.
  • outer cutter blade sections f have their edges arranged in oblique or angular relation to the inner cutter blade at, and in slightly stepped formation as shown in Figure 2 thereby ensuring an easier and more effective-shearing or guillotine action for severance of the tufts e when the edges of the outer cutter blade sections 7' come into contact with the edge of the inner cutter blade a.
  • a finger 0 is provided so that on the forward movement of the block 7: the edges of the outer cutter blade sections f are led into exactly correct shearing position over the edge of the inner cutter blade at so as to sever the tufts, and these fingers 0 are preferably arranged in cooperation with small fixed inclines p provided at correspondingly spaced'positions on the preferably by means of a pair of headed studs 9 which pass upwardly through the carrier plate 9 and are then adjustably screwed into the block it, a pair or plurality of spiral or other springs 9" being interposed between the carrier plate 9 and the block, in recesses s'located at longitudinally spaced points between-or adjacent the pair of studs 9, these springs 0 serving to keep the carrier plate 9 and its cutter blade section 7 flexibly pressed apart from the block 72, as far as the heads of the studs 9 will allow, as more particularly shown in Figures a and 5, the springs being of such a strength that
  • the series of separatespring-loaded sections 7 f of the outer cutter blade also adapt themselves to any slight deformation or irregularity in the edge of the inner cutter blade I a, and provide a corresponding series of independent but flexible and uniform shearing cuts operating simultaneously or substantially simultaneously across the entire width of the fabric, these several shearing actions being further facilitated by setting the studs 9 of each cutter blade section f at difierent levels so as normally to locate the series of cutter blade sections in slightly stepped planes as shown in Figure3.
  • the carrier plates 9 may each be provided with an; upwardly projecting slide t which fits into a corresponding slot at in the block h, for the purpose of preventing transverse rocking of the cutter blade sections f and any consequent liability of the carrier plates 9 to bind on their supporting studs 9.
  • a two-bladed tuft cutter mechanism which comprises a straight cutter blade mounted on a movable supporting block on one side of the row of tuft yarns to be cut, a plurality of blade sections mounted end to end in stepped formation on an opposed movable supporting block on the other side of said row to constitute the complementary cutter blade, and pressure springs separately applied to the individual blade sections so as to ensure independent but flexible and uniform shearing actions of the plurality of blade sections extendincr across the fabric.
  • each springloaded blade section is fixed-to a separate carrier plate which in turn is suspended from the supporting block byadjustable studs or the like, and wherein the pressure springs are interposed between the carrier plate and the blockto ensure a yielding. or flexible and adjustable support of the can.
  • a two-bladed tuft cutter mechanism comprising a movable supporting block on one side of the row of tuft yarns to bei-cut, a cutter element carried thereby, a complementary cutter element, an opposed movable support,- ing block on the other side of said row of tuft yarns, and means for adjustably and flexibly mounting said complementary cutter element upon said last mentioned block, said means comprising a plurality of headed studs adjustably carried by said last mentioned block, a carrier plate suspended from said studs, and a plurality of pressure springs interposed between said carrier plate and its supporting block at spaced intervals in the Width of the loom, said complementary cutter element being attached to said carrier plate.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
US345647A 1928-04-13 1929-03-09 Loom for weaving tufted pile fabrics Expired - Lifetime US1767758A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10899/28A GB311903A (en) 1928-04-13 1928-04-13 Improvements in or relating to looms for weaving tufted pile fabrics

Publications (1)

Publication Number Publication Date
US1767758A true US1767758A (en) 1930-06-24

Family

ID=9976352

Family Applications (1)

Application Number Title Priority Date Filing Date
US345647A Expired - Lifetime US1767758A (en) 1928-04-13 1929-03-09 Loom for weaving tufted pile fabrics

Country Status (3)

Country Link
US (1) US1767758A (enrdf_load_stackoverflow)
BE (1) BE358901A (enrdf_load_stackoverflow)
GB (1) GB311903A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2575834A (en) * 1950-02-28 1951-11-20 Alexander Smith Inc Knife support for axminster looms

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2575834A (en) * 1950-02-28 1951-11-20 Alexander Smith Inc Knife support for axminster looms

Also Published As

Publication number Publication date
BE358901A (enrdf_load_stackoverflow)
GB311903A (en) 1929-05-23

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