US775970A - Loom for weaving pile fabric. - Google Patents

Description

--No. 775.970. QPATENTED Nov. 29, 1904. w. G. HARTLEY.

LOOM FOR WEAVING FILE FABRIC.

APPLIGATIOH E'ILED FED. Q, 1904;

5 SHEETS-SHEET L Q Co l3 'Jmmutoe (Nancy fncaoca r UNITED STATES Patented November 29, 1904.

PATENT OFFICE.

'ILLIAM G. HARTLEY, OF AMESBURY, MASSACHL'Sl-ITTS. ASSIHNOR, BY

DIRECT AND MESNE ASSlhrNMEN T5, T HARTLEY LOOP WEAVE COM- PANY. OF AMESBURY, MASSACHUSETTS. v r

Loom FOR WEAVING PlLE FABRIC.

SPECIFICATION forming part of Letters Patent No. 775,910, da.ted November 29, 1904. Application filed Febrnary 4,1904. Serial No. 191,966, No model- 1'0 all whom, it may concern:

Be it known that I, \VILLIAM G. HARTLEY,

a resident of Amesbury, in the county of 155- 3 sex and State of Massachusetts, have invent- 5 ed certain new and useful Improvements in Looms for l. caving Pile Fabric; and I do hereby declare that the following is a full, clear,

- and exact description thereof, reference being f had to the accompanying drawings, and to the I 0 numerals of reference marked thereon, which form a part of this specification.

This invention relates to improvements in looms for weaving pile fabric, and has for its object an improved construction of mechan- I 5 ism for forming loops over pile-wires, which mechanism may be used for weaving any pile fabric, but is adapted more particularly for use in weaving carpetin A further ob ect of the invention is to provide means, includmga serrated bar, havinga set of downwardly-projecting tapering teeth or fingers, each tooth projecting down between the series of pile-threads, the whole be- 5 ing capable of being moved transversely or 5 in the direction of the width of the fabric and at the same time moving downwardly, carrying the pile-threads over the pile-wires.

A further object of the invention is to provide means for the purpose of guiding the 3 vertically-reeiprocating pile-threads so that after they have been carried down and out from between the said teeth through the ground-warp threads they will be sure to find their way back (when carried up by the ascending harnesses) into the space between the teeth where they came from.

The invention consists of other novel features and parts and combinations of the same, as will be fully described hereinafter and the 4 pointed out in the appended claims.

A practical embodiment of the invention is represented in the accompanying drawings, formlng a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 illustrates the pile-thread as bej ingpperated by the heddles, the view being a diagram in section showing parts of the loom and the relative position of the new device to the usual parts looking in the direc- 5 tion of one end of the loom. Fig. 2 is a front view showing a-portion of the frame with my improveddevice attached thereto, showing the laterally-reciprocating serrated bar for 5 operating the guide-wires. Fig. 3 shows the serrated guide-bar hung on its swinging arms, said bar being -'in its up or central position. Fig. 4 shows the toothed guide-bar thrown over to one side on its pivoted arms, which carries it downward at the same time. Fig. 5 is a top plan view showing the position of the threads as the toothed guide-bar is drawn to one side. j Referring to the drawings, 1 in-Fig. 1 is 4 the usual yarn-beam that carries the warp- 5 5 threads from which the ground fabric is i woven. On this ground fabric is formed the i pile-loops, which when out produce the velvet i or plush effect such as form the face of carpeting or other pile fabric. 7

At :2 2 are the heddles or harnesses that control the ground warp-threads, and 3 is the heddle that controls the vertically-reciprocating movement of the pile-threads 4, these latter threads being led from the spools 5 on the rear of the loom. \Vhen it is desired toweave plain carpeting, this heddle 3 may be used, and it may be operated by the ordinary jacklevers in adobby-head; but when it is desired 2 to weave a figured carpeting or the like the 30 jacquard mechanism (not shown) may be used in the manner well known to those skilled in the art of weaving.

At 6 isthe pile-wire, one end of which lies on the Woven fabric, such end being drawn down to thesize of the loops desired to be formed over it. The main arm of this pilewire may beset on an angle a little less than that of the upper shed of the ground warpthreads when open, said arm having a hump I or protuberance 13 at the bend or where the wire turns down. This hump or rounded 5 raised portion on the pile-wire catches the pile-threadfi'rst in its descent and prevents g the thread from slipping back on the wrong l side of the wireas it is being carried down by the heddles to form a loop over said wire. The main arm of the pile-wire is supported below the warp-threads.

At 14 is the guide-bar, which is also pivoted below the warp-threads. This bar sets upright a short distance forward of the depcndconnections I am able to operate it in two di ing leg 7 and extends up past the pile-wire, resting loosely against the same. bar 18 for the purpose of guiding the pileguide-bar 20 at each'end on arms or conneetions 19 19, which connections are pivoted at L 8 at their lower ends to fixed pieces 18 18 on the loom-frame, their upper ends being piv- This guidethread and preventing it frombeing carried E too far to one side and over the ad acent pilewire.

It lies loosely against the pile-wire, so I the pi le-thread may readily pass down between it and said pile-wire. By placing these guidebars either forward or back of the depending 5 being long enough to extend down through legs of the pile-wires more room is given for both the pile and warp threads to pass between said pile-wire legs without binding. The'v position of this guide-bar is quite an essen- 1 tial feature in the weaving of carpeting, as the threads are necessarily large and the;

space. between said depending legs is very limited and where a number of different coli ored pile-threads are used the space is somewhat crowded. The upper portions of each of these guide-bars 14 are held loosely in a supporting-bar 14*, which latter bar resembles 3 a reed in construction, the ends of said guide- 3 bars resting loosely between its dents; but 4 any suitable means may be employed for supporting the upper ends of these guide-bars.

To carry the pile-warps 4 over the pilewires 6 first to one side and then the other in g the formation of loops over said wire, I prcferably use a serrated bar having long tapering teeth 9 resembling the teeth of a saw, leaving correspondiugly-tapering spaces between said teeth. The object in forming taoted at 15 to the toothed guide-barQO. thus supporting this toothed bar on pivoted rcctions at once by simply moving it endwise.

and below the ground-warps when the shed is open.

guided back on its upward stroke into its proper position between the teeth 9 of the laterally-movablebar-20. Both this laterallymovable serrated bar 20 and the guiding-reed 17 are placed back of the pile-wires 6 and between them and the harnesses for the purpose Each pile-thread passes through the space between the dents and 18 thereby safely of giving more room for a freer movement of the pile and warp threads.

The operation of my device is further explained as follows: Vhen it is desired to weave a plain pile fabric, the pile-threads are led from the spools 5 in the rear of the loom j through the harness 3, thence through the reed 28 to the ground fabric 29, to which latter it is secured. This harness 3 is actuated by a harness-lever 3O 1n the dobby-head to I raise the pile-threads 4 at the required time pering spaces between the-teeth is that each pile-thread 4 used in weaving carpeting is often made up of a plurality of loose and separate strands, and it is found in practice very desirable and often necessary in order to obtain good results in weaving this class of goods that these strands should be gathered together and held closely while they are being carried from side to side over the pilewire in order to keep them-from splitting or separating and part going on one side and part on the other of said pile-wire 6 as it is above the pile-wires 6. The harness-lever 24 is then called Into action in the usual manner and draws the toothed bar 20 endwise, the' movement cf which bar draws the teeth of the transversely-movable bar 20 over against the pile-threads 4, causing them to be carried down on the ppposite side of the pile-wires 6 and form a loop when the harness descends. On the next stroke up of the piletln'eadactuat1ng harness 3 the toothed bar 20 is released and albeing carried down to form a loop over the ing held closely together, and by moving this toothed bar sidewise and downward at the same time these strands are retained in their proper position and held together until they have been carried safely over the hump or top of the pile-wires and down on the other side.

In order to obtain this side motion and down- I ward motion at the same time, 1 preferably employ the simple mechanism, (best illustrated in Figs. 3 and 4,) which is that of hanging the lowed to be carried back by the tension of the spring 27 to its inward position, causing i s teeth to engage the opposite side of each jacent pile-thread and press or guide them over the next pile-wire so they may be d rawu down onthe opposite side of said pile-wires, again IIO forming a loop. By a slight movement of these I teeth, which extend down between adjacent pile-threads, said threads are guided to be carried down alternately first on one side and then on the other of the pile-wire (Sand bound down in the usual way by the passing of the shuttle over them. This thread is thus securely woven to the body of the fabric, the loops being formed over the wire, said loops being carried down by the beating up of the reciprocating reed 28 to the small end of the wire, where they are drawn to the proper size. This sequence of motions 1s repeatedly made, and a series cloops 31 of the pile-threads are bined lateral and downward movement to said formed over each wire 6, which loops are drawn off of the front end of the wires as the number of flattened wires 6 and corresponding pile-threads 1 may be used, and any n n- I pile-threads, means for imparting a combined Oniy ber of harnesses or shuttles may be employed, according to the style of goods desired. enough of the loom is shown to illustrate the operation of my invention.

pile-threads, and vertically-disposcd bars or wires set betweenthe pile-threads and'adapted to guide the latter in their vertical movement.

7. In a loom for weaving pile fabrics, pilewires over which loops are formed by the pilet-hreads, a serrated bar adapted to engage said lateral and downward movement to said serrated bar, and means for guiding the pilethreads vertically.

I have shown the pile-th reads 4 as being operatcd by the harness-levers in a. dobby-head; but I do not wish to confine myself to any particular method of operating these pile threads, as they may be actuated by cams or any of the various methods known to those skilled in the art of weaving.

This construction 1s extremely simple and practical, and by the arrangement of the mechanism the parts are made very accessible. This device is not confined to weaving of carpets alone, but may be used in weaviuganv plain or figured velvet of other pile fa ric.

The mechanism for operating the dit'i'crent parts is not shown nordescribed, as they are all well known, and no particular way is claimed.

Having thus described my invention, What I claim as new, and desire to secure by Letters Patent, is-

1. In a. loom of the character described, pilewires, a laterally-movable bar, said bar being provided with angular openings into which the pile-threads are gathered as they are carried laterally over the pile-wires and means for moving said barlaterally.

2. Ina loom oi the character described, pilewires, a laterally-movable bar, said bar being provided with angular openings, said openings having an apex into which the threads are gathered as they are carried over the pilewires, and means for moving said barlaterally.

3. Ina loom of the character described, pilewires, a laterally-movable bar, said bar being provided with angularopenings, said openings having an apex into which the threads are gathered as they are carried laterally over the pile-wires, means for moving said bar laterally and means for gui ing the pile-threads vertically.

4. In a loom for weaving pile fabrics, pilewires over which loops are formed by the pilethreads, guiding means for imparting a combined lateral and downward movement to said pile-threads, and independent means for guiding the pile-threads vertically.

5. In a loom for weaving pile fabrics, pilewires over which loops are formed by the. pilethreads, guiding means for imparting a combined lateral and downward movement to said pile-threads, and independent fixed means for guiding the pile-threads vertically.

6. In a loom for weaving pile fabrics, pilewires over which loops are formed by the pilethreads, guiding means for imparting a com- 8. In a loom for weaving pile fabrics, pilewires over which loops are formed by the pilethreads, guide teeth or fingers adapted to engage the pile-threads, means for imparting a combi ied lateral and downward movement to said teeth or fingers, and fixed independent means for guiding the pile-threads vertically.

9. In a loom for weaving piiefabrics, pilewires over which loops aremade by the piletlueadsalaterally-moving serrated bar,means whereby said bar may be moved endwise and downward at the same time, the teeth of which bar engage the pile-threads to guide or press them laterally and downwardly from side to side so that when said threads are carried down they will form loo ps over said pile-wi res,

means for moving said bar and means independent of the heddles for guiding said pilethreads vertically. I

10. In a loom for weaving pile fabrics, pilewires over which loops are made by the pilethreads,a laterally-moving serrated bar,means whereby said bar may be moved endwise and downward at the same time, the teeth of which bar engage the pile-threads to guide or press them laterally and downwardly from side to side so that when said threads are carried down they will form loops over said pile-wires, means for moving said bar, and vertically-disposed bars or wires set in between the pile-threads for guiding said threads vertically.

11. In a device of the character described, pile-wires over which loops are formed by the pile-threads, a serrated bar adapted to engage said pile-threads, and means for imparting a combined lateral and down :ard movement to said .bar.

12. In a loom of the character described, pile-wires over which loops are formed by the pile-threads, a serrated bar adapted to move said pile-threads laterally and downwardly, and means for guiding said pile-threads vertically.

13. In a loom of the class described, pilewires, upright flexible guide-bars located by the side of said pile-wires, and means located back of said guide-bars for moving the pilethreads, said guide-bars extending above said pile-wires for the purpose of preventing an excess lateral movement of the pile-threads.

14. In a loom of the class described, pilewires, supported at one end by a depending leg, upright guide-bars located by the side of said pile-wires and forward of said leg, and

located by the side of said pile-wires and extending above the same. said bars being se-J cured at their lower ends and adapted to be moved laterallyat their upper ends, said bars I being for the purpose of preventing an excess lateral motion of the pile-threads.

In testimony whereof I have hereunto seimy hand this lstday of February. A. l). 1904:.

'lLLIAM G. HARTLEY. In presence of- ROBERT (.3. CLARK, A201: 0. \VEBSTER.

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