US939503A - Beating-up mechanism of looms for weaving. - Google Patents

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W. HOLLAS, R. FARNWORTH & T.- JACKSON. BEATING-UP MECHANISM OF LOOMS FOR WEAVING. w APPLICATION FILED JAN.19, 1909. r 939,503. Patented Nov. 9, 1909.

3 SHEETSSHEET 1.

W. HOLLAS, R. FARNWORTH & T. JACKSON.

BEATING-UPMEGHANISM 01- LOOMS FOR WEAVING.

APPLICATION FILED JAB. 19. 1909.

Patented Nov. 9, 1909.

3 SHEETS-SHEET 2.

HOLLAS, R. FARNWORTH & T. JACKSON. BEATING-UP MECHANISM OF LOOMS FOR WEAVING.

APPLICATION FILED JANJQ. 1909.

939,503. Patented Nov. 9, 1909.

3 SHEETS-SHEET 3.

x 3.11m (lam LIA To all whom it may concern:

- I s'rA'r s PATENT OFFICE.

WILLIAM HOLLAS, ROBERT FABNWORTH, AND THOMAS JACKSON, OFF BOLTON, ENGLAND.

Specification of Letters Patent.

FOR WEAVING.

Application filed January 19, 1909. S eriaI No. 473,172.

Be it known that we, WILLIAM HoLLAs,

mechanic, subjects of the King of Great Britain and- Ireland, and residents of Bolton, in the county of Lancaster, England, have invented certain new and useful Improvements in the Beating-Up Mechanism of Looms for Weaving, of which the following is a specification.

This invention relates to improvements in looms for weaving and while particularly relating to narrow looms for weaving tape and like goods, such as in the Poyser loom, is nevertheless applicable to looms for weaving fabrics of any width, the principal object being to provide improved arrangements to take the place of the ordinary lathe -mechanism for beating-up the weft and for porting them, though in the Poyser tape loom to which we have referred the reed wires are ada ted to form a joint about the middle of their length, one half of the wires being fixed to and sup orted by a longitudinal rod while the other half are fixed to and supported by a second rod. The di' vided wlres areal-ranged to be opened at .their central joint at certain times to enable the weft carried by the shuttle to be traversed across the warp as will be well under stood by those who are acquainted with the tape loom to which-we have referred. Furarticularly ther these old arrangements are referred to in order toehable t e features of our invention to be thhroughly' understood.

s of a revolving reed adapted to ha e the weft laid into it in such a way that its revoluble motion will car the weft forward,- force it up to the fellof the cloth, release itself employ reed dents consistin Our invention consists essei tially. 1n, the substitution for all forms of reed in looms,

position reference to the'accompanylng drawings in which,

Figure l is a front elevation, partly in section, of a Poyser tape loom showin our invention applied thereto, Fig. 2 partia side elevation of the loom, Fig.3 partial plan, Fig. 4 partial lan, partly in section, showing a modifie d arrangement of the reed while, Figs. 5, 6, 7, and 8 show end elevations of one of the reed plates in different positions and Fig. 9 end elevation of a modified form of reed plate.

, In accordance with our invention we entirely dispense with the reeds as at present used and also ,with the present form of beatup mechamsm and for narrow, looms or looms for weavmg narrow fabrics we do not Patented 'Nov. 9, 1909.

employ any lathe mechanism whatever, but I I to efiect the separation of the Warp threads and to enable the weft to be beaten up we of revoluble plates, a which not onlyact or the separation of the warp threads I) but also as a means for beating-up or forcin the weft 0 toward the fell of the cloth or fa ric 9 being woven. The plates forming these reed dents are mounted u on a shaft e of any suitable cross section. circular cross section but has a longitudinal groove j into which enter the projections h ormed on the reed plates, whlle in. Fig. 9 the reed plates are shown with" a square hole adapted to fit a square shaft. The shaft is supported in bearings z adjacent to the breast beam j of the. 00m, the plates being of any suitable thickness and made of afily e have experimented with various. materials suitable material for their purpose.

including iron and steel plates, celluloid and vulcanite. The thickness of the plates, as in the case of' ordinary reed dents, depends upon the character of the fabric to be woven, and the distance' of their separation from each other is also dependent upon the same 'factor. Usually they are separated by wash- 0' ers k .of the required thickness placed betweenthem though they may be formed with n Figs. 1 to 8 the shaft is of a boss on one or both sides. In Figs. 1 to'3 the lates and washers are cramped, or boun together ax ally by a .nut m fittin on a screwed ortion of the shaft e. It {1 thus be seen-t at by these means the plates i are tightly bound at the center though their thinness admits of a little lateral resiliency near to the periphery of each plate so that shaft 6 on which they are mounted. This arrangement admits of freedom of move-. ment in almost every direction for each plate. In Fig. 8 the plates would be cramped together as in Flgs. 1 to 3 but lateral resilienc is obtained by stamping out from each p ate an almost complete circular slot 0 though other simple means of obtaining resiliency may be employed. On the other hand we find in emp oying reed. plates made of celluloid and cramped together as in Figs. 1 to v3, that this material is-sufliciently flexible to allow of the required lateral resiliency for the purposes referred to.- Sometimeswe employ a combinationof celluloid and steel plates arranged alternately.

In side elevation each reed" dent or plate is roughly speaking similar to a Fi 6 tliat is to say, somewhat cam-shaped wi th'a:

space 1) between -the main portion of the plate and the arm or point 9 which forms the upper portion of the figure. In other words the space referred to forms a curved slot, the outer and open end of this slot being away from the breast beam 7'. The shaft e Jarrying thereed plates has given to it an intermittent rotary motion so that at one time'the slot or space 1) is presented and remains momentarlly stationary in the position indicated in Figs. 2 and 5, to enable the weft c to bepassed into it by the shuttle r as it is shot across the warp by the ordinary mechanism of the loom, while at another time the dents are rotated so as to convey the. weft so placed toward the fell of the cloth, the position indicated in Fig. 6 being midway between Figs. 5 and 7 though thereed does not actually stop in that position. The v1ew, however shows the weft being pulled" around the pointed end ofthe reed plate by the shuttle. The next point of momentary stoppage, however, is at position Fig. 7

where the ointed end of the reed plate has descended elow the, warp, the weft now ly1ng across the warp threads on the breast 'beam side of the reed late ready for being are being rotate beaten-up. This is e acted by the further rotation of the reed plates to the position shown in Fi 8 in which the weft is com-- pletely force up to the. fell of the cloth by the edges of the (plate. While the reed plates from the position shown in Fig. 8to the initial 'osition shown in Fig. 5

the shedhas been c anged in the ordinary way to tic-in the weft when the cycle of operations referred to is repeated.

In order that the reed plates may operate as set forth, the slot p of each plate is wedgeshaped and is curved so that it approaches the shaft gradually from the point 9 at its wide end to its narrow end 7. The periphery of eachplate is eccentric of the shaft 0 and is largest on aradial line at the point 8 which is diametrically opposite to the narrowest end 7 of the slot. From the point 8 the periphery approaches the shaft gradually in one direction until the point 9 is reached, and in the other direction the periphery gradually approaches the shaft until the narrqw end 7 of the slot is reached.

Intermittent rotation of the reed plates may be effected by any suitable means so long as the objects referred to are accomplished. At present we prefer to employ a Geneva stop motion consisting of a star wheel 8 fixed on or formed integral with the shaft 6 and a disk if provided with pins u arranged at suitable distances apart and adapted to engage with the slots '0 of the star wheel so as to rotate the latter substantially in the manner described. The disk 15 may be operated by gearin in the form of wheels or by a chain w ant? sprocket wheels ''w from a suitable revolving art of the loom, preferably the driving s a t w.

The reed roject both plates at all times above and be ow the warp threa s, that is to say, both when the shed isopen and closed so that there is no possibility of the warp threads becoming disenga ed or getting between the wrong plates. 0t only so but the reed plates are perfectly open at the top so that whenever the warp threads become broken it is quite easy to place them between the dents after piecing up.

In order to pass the weft thread into slots of the reed plates the shuttle is provided with an extending arm y, the extension being in the direction of the breast beam. The weft is assed through a hole 2 in its forward end. The arm y is sufiiciently thin to pass through the slots but the shuttle itself, in other respects, isof substantially the same character as that in the Poyser loom and it is also propelled in a similar manner.

' Apart from thefeatures of our invention hereinbefore described the other mechanism of 'the loom, where the improvements are a plied to tape and like narrow looms, may e arranged as in such looms. We would, however, have it'understood that instead of causing the'shuttle to traverse across the warp in the arc of a circle struck from a. horizontal center below the breast beam we'may traverse it across the'warp in the arc of a circle struck from a vertical center toward the front of the 100m so that there would al-' ways he a tendency to lay the weft near the selvages of the fabric belng woven. On the seen that our invention entirely dispenses with ordinary beat-upand reed'mechanism' and substitutes therefor a most sim le, effective and novel device capable of being ap lied to ordinary looms for weaving ert er narrow or wide. fabrics.

What we claim as our invention and desire to secure by Letters Patent is I; A. reed and beating-up device, for a loom, comgrising' an actuating shaft, a series tes mounted to revolve with the of reed. said but free to slide longitudinally on it, each reed plate being cam-shaped and provided with a curved slot, and a spring encircling the said shaft and permitting the said reed plates to be moved apart to a limited extent. 1 a

reed and beating-up device for looms com ising a plurality of cam-shaped plates shaft for supporting the plates,

having slits or'passages in alinement with each other to receive the weft, means for separating the plates from each other, a bearings for the "shaft, means for holding the plates together in an axial direction, a slotted disk on the shaft, a disk mounted on a second shaft having pins for engaging with the slots of the slotted disk, a sprocket wheel on the second shaft, a third shaft carrying a sprocket wheel and a chain for communicatin motion between the two sprocket whee s substantially as described.

In testimony whereof we have hereunto set ourhands in the presence of .two Witnesses.

WILLIAM HOLLAS; ROBERT FARNWORTH. THOMAS JACKSON. Witnesses:

WILLIAM HENRY TAILOR, DOROTHY I. DAVIES.

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