US1840856A - Pile fabric loom - Google Patents

Description

Jan. 12, 1932. E. w. STONE FILE FABRIC LOOM 2 Sheets-Sheet l )NvE/voR: EMW m,

Fil ed Sept. 29, 1950 v J ATTORNEY Jan. 12, 1932. E. w. STONE PILE FABRIC LOOM Filed Sept. 29, 1930 .2 Sheets-Sheet 2 ATTORNEY' Patented Jan. 12, 1932 u urrso STATESQPATENT OFFICE EDWIN w. sromror LoNGmnLnow,

MASSACHUSETTS MASSACHUSETTS, ASSIGNOR TO BIGm'aOW-SAN- FORD CARPET (70., INC., 01' THOM'ISONVILIE, CONNECTICUT, A CORPORATION OI! PILE FABRIC LOO]! Application filed September 29, 1930. Serial No. 485,070.

This invention relates to pile fabric looms wherein the pile is formed by laying pile warp strands over pile wires.

In pile fabric looms employing pile wires 5 the wires are inserted in the open shed between the ground warps and the pile warps and are beaten up and bound to the fabric by the pile forming loops. These wires remain in the fabric until they have been ad- 1 vanced some distance from the fell of the cloth, and as each wire is advanced frontwardly to a predetermined position, it is withdrawn from the fabric and again inserted in the open shed.

When the frontmost wire is withdrawn from the fabric it is necessary to carry its blade or forward end rearwardly opposite the open shed, and this should be done rapidly so as not to retard the other loom operations.

Heretofore it has been customary to employ an overhead transfer mechanism for shifting the forward end of the wire rearwardly opposite the open shed, but such overhead mechanism is in the way of the loom attendant and is more or less awkward in operation.

The present invention therefore relates to a novel and compact form of mechanism for quickly shifting the drawn pile wire rearwardly into position to be inserted in the shed, and an important feature of the present invention resides in means to this end which is operated from mechanism located below the plane of the fabric where it is out of the way.

A more specific feature of the present invention resides in a rack supported for sliding rearward movement to carry the forward end of a withdrawn wire rearwardly, and in gear mechanism for operating said rack in timed relation with the wire withdrawing mechanism.

Other features of the invention and novel combination of parts in addition to the above will be hereinafter described in connection with the accompanying drawings, which illustrate one good practical form of the invention.

In the drawings forward end of a with-' Fig. 1 is a perspective view of the right side of a pile fabric loom provided with the wire transfer mechanism of the present invention;

Fig. 2 is a top plan view of the wire operating mechanism of Fig. 1;

Fig. 3 on an enlarged scale is a vertical sectional view through the wire guiding slot showing a pilewire in sliding engagement therewith;

Fig. 4 is a vertical sectional View of the mechanism of Fig. 1 for shifting the free end of a wire rearwardly;

Fig. 5 on an enlarged scale is a section taken on the line 55 of Fig. 4;

Fig. 6 is a perspective view of a wire guide to be described; and

Fig. 7 on an enlarged scale is a horizontal sectional View through a wire engagin finger and its supporting bracket on line 7 Fig. 4.

The features f the present invention may be employed wit various types of pile fabric looms provided with pile Wire mechanism. The drawings show only the portions of the pile fabric loom with which the features of the present invention are associated, and the general construction of the loom mechanism illustrated in Fig. 1 is more fully shown and described in the parent application Ser. No. 481.841 filed September 15, 1930.

The parts of the loom shown in the drawings are supported by the main frame 1 and at the front of the loom is provided the usual spike or take-up roll 2, the ends of which roll are journaled in the supporting brackets 3. At the rear of the take-01f roll 2 is provided the lay 4 having the shuttle box 5 and the lay is provided with the usual reed 6 which is supported at its upper end by the reed cap 7 secured to the extensions 8 at the upper end of the lay swords 9. At each end of the lay 4 is provided the usual picker 10 operated by r woven is moved forward in a well-known manner by the spike or take-up roll 2.

The beat-up movement is imparted to the lay 4 from the usual crank shaft (not shown) and below the crank shaft and driven therefrom is provided the usual bottom shaft'15.

The mechanism illustrated for inserting and withdrawin the pile wires consist of the wire slide or guide-way 16 which is supported at the right hand side of the loom, as shown, and in the upper face of this guideway is provided the slot 17 which constitutes a guide-way for the enlarged butt end 18 of the pile wire. The guide-way 16 is also provided with the spring operated switch 19 adapted to rock about the pivot pin 20. The arrangement is such that the butt end 18 of the pile wire travels along the guide slot 17 as the wire is withdrawn from the fabric and travels along the inclined slot 21 as the wire is inserted in the shed.

. Upon the guide-way 16 is slidably mounted the pile wire carriage 22 which is provided with the wire withdrawing latch 23. The carriage 22 is also provided with the wire inserting plate 24 adapted to engage a slot formed in the butt end 18 of the pile wire, as will be apparent from Fi 3. In the construction shown the means or reciprocating the carriage 22 to withdraw and insert a pile wire comprises the pivoted lever 25, the upper end of which is operatively connected to the carriage 22 by the yielding connecting link 26. One form of mechanism for operating the lever 25 is shown and described in the application above mentioned.

The mechanism so far described operates in a well-known manner and forms no essential part of the present invention but has been illustrated and briefly described to make clear the association therewith of the novel features of the present invention, which will now be describe As above pointed out the pile wires 13 are inserted in the open shed so that they ma be beaten up andbound to the fabric by the pile forming loops. These wires remain in the fabric until they have been advanced frontwardly a sufficient distance from the fell of the cloth and as each wire reaches this position it is withdrawn through the engagement of the latch 23 of the carriage with the portion 18 of the pile wire.

In the resent case the wires 13 are shown as provi ed with a cutter 27 at their forward end, so that the pile will be severed as the pile wire is withdrawn. After .a pile wire 13 has been sufliciently withdrawn to cause its forward end to clear the row of the butts 18 of the pile wires secured to the fabric, its forward end should be quickly shifted rearwardly into position to be inserted in the shed.

This, is accomplished in accordance with the present invention by providing a rod or 'ing 29 and this houslng rack 28 which is supported near the cloth selvage for sliding movement in a rearward direction transversely of the wire slide or guide-way 16. In the construction shown the rack 28 is slidably supported by the housis shown as having a supporting bracket 30 which is bolted or otherwise rigidly secured to the loom frame 1. The rack 28 is provided at its rear end with a Wire engaging finger 31 shown as rigidly secured to a pin 32 which is slidably supported by the bracket 33 attached to the rear end of the rack 28, and the finger 31 is preferably yieldingly held in the position in which it is shown in Fig. 4 by a coiled spring 34. The arrangement is such that the wire engaging finger 31 is normally held by the spring 34 firmly seated against the inner face of the bracket 33, and the finger 31 has the V-shaped rib 31a adapted to enter a correspon'dingly shaped recess in the inner face of the bracket 33. The rib 31a holds the finger 31 from rotating about its axis 32 as long as the finger abuts against the recessed portion of the bracket 33 but if a wire jams the finger is permitted to yield towards the front of the loom and also rotate about its axis 32. This gives a yielding movement to the finger in two directions which is important to prevent injury of parts. The lower end of the finger 31 as the rearwardly extending flange 35 adapted to travel in the groove 36 extending transversely of the guide-way 16, and

above this flange is provided the slight hump y by rotating the shaft 38 in one direction and may be quickly retracted by rotating this shaft in the opposite direction. The desired rotative movement is imparted to the shaft 38 in the construction shown by providing a gear 39 at the lower end of the shaft and which meshes with the teeth of a second rack 40. The rack 40 is preferably slidably mounted within the casing 41, which casing serves also to enclose the lower gear 39, and this rack is provided with the rib 40a having the adjusting bolts 40?).

In the construction shown the lower rack 40 is periodically actuated from the bottom shaft 15 and to this end the bottom shaft is provided with the cam 42 having the oppositely disposed nose portions 43 adapted to engage a roller 44 carried by an intermediate portion of the lever 45, which lever is pivotally supported at its lower end by the bracket 46. This lever is continuously urged in a right hand direction viewing Fig. 4 b the spring 47, one end of which is plvotal y secured at 48 to the loom frame and the other end is secured by the adjustable bolts 49 to a laterally extending ear 50 upon the lever 45. The upper end of the lever 45 is operatively connected to the lower rack 40 by the link 51 and this link is pivotally connected to the lever at 52 and is pivotally secured-to the rack 40 at 53 to accommodate the rocking movement of the lever 45. The effective length of the link 51 may be adjusted by rotating the ried by the upper rack 28. The shaft 38 is preferably provided adjacent its opposite ends with the anti-friction bearings 55 and the upper rack 28 is shown in Fig, 5 as provided with the bevelel gib 56. It will be seen from the foregoing that the sliding racks and cooperating gears are enclosed in the protecting housings 29 and 41, which serve to exclude lint and dirt and will prevent the loom attendant from being injured by these operating parts.

It is desirable to provide a fixed guide such as indicated by 57, see Fig. 6. for limiting the rearward movement of the pile wire 13 under the action of the wire transfer finger 31. This guide 57 is preferably given the U- shaped construction shown and is rigidly supported in the desired position by the arm 58 which is secured to and extends rearwardly from the post 59 secured to the loom frame. The pile wire 13 may be further guided during the wire inserting movement by the rod 60 which may be supported by a portion 61 of the loom frame so that this rod will extend over the guide-way 16, and the upwardly extending end portion 62 thereof will engage and assist in guiding the wire 13 as it is thrust into the open shed.

It will be seen from the foregoing that the mechanism of the present invention for carrying the forward end of a withdrawn pile wire rearwardly into position to be in-.

serted in the shed is simple and compact in construction and that the greater portion of the same is located below the plane of the fabric where it is out of the way and will not obstruct the view of the loom attendant in watching the loom operations.

What is claimed is 1. In a loom employing pile wires, in combination, a pile wire carriage, a guide-Way for supporting the carriage, means for reciprocating the carriage to insert and withdraw pile wires, and wire transfer mechanism for carrying the forward end of a withdrawn plle wire rearwardly for insertion in the shed, including a wire engaging device mounted for sliding movement transversely of said guideway, and means for imparting sliding movements to said device, including a shaft extending downwardly from said device, and means for periodically turning s'aid shaft to impart sliding movements to said device in a direction towards and from the rear of the loom.

2. In a loom employing pile wires, in combination, a pile wire carriage, a guide-way for supporting the carriage, means for reelproeating the carriage to insert and withdraw pile wires, and wire transfer mechanism for carrying the forward end of a. withdrawn pile wire rearwardly for insertion in the shed, including a wire engaging device supported yieldingly and for sliding movement transversely of said guide-way, and means for imparting sliding movements to said wire engaging device in a direction towards and from the rear of the loom including an actuating member extending downwardly from' said device and operatively connected thereto and means for actuating said member pe.-"

riodically.

3. In a loom employing pile wires, in combination, a pile wire carriage, a guide-way for supporting the carriage, means for reciprocating the carriage to insert and withdraw pile wires, and wire transfer mechanism for carrying the forward end of a withdrawn pile wire rearwardly for insertion in the shed, including a bar mounted for sliding movement approximately parallel to the cloth selvage and provided with yieldingly mounted wireen a 1n means and mechanism for reci ro-- a t a v eating said bar.

4. In a loom employing pile wires, in combination, a pile wire carriage, a guide-way for the carriage, means for reciprocating the carriage to insert and'withdraw pile wires, and wire transfer mechanism for carrying the forward end of a withdrawn pile wire rear wardly opposite the open shed, including a rack mounted for sliding movement transversely of said guide-way and provided with wire engaging means, and a power-driven gear for operating said rack.

5. In a loom employing pile wires, in combination, a pile wire carriage, a guide-way for the carriage, means for reciprocating the carriage to insert and withdraw pile wires, and wire transfer mechanism for carrying the forward end of a withdrawn pile wire rearwardly opposite the open shed, including a bar supported for sliding movement transversely of said guide-way and provided with wire engaging means, and means for imparting sliding movement to said bar including a shaft extending downwardly from the bar and adapted to be periodically rotated from a power actuated part of the loom.

6. In a loom employing pile wires, in combination, a pile wire carriage, a guide-way for the carriage, means for reciprocating the carriage to insert and withdraw pile wires, and wire transfer mechanism for carrying the forward end of a withdrawn pile wire rearwardly opposite the open shed, including an upper rack mounted for sliding movement transversely of said guide-way and provided with wire engaging means, a lower rack adapted to be periodically actuated, and gear means for operating the upper from the lower rac 7. In a loom employing pile wires, in combination, a pile wire carriage, a guide-way for the carriage, means for reciprocating the carriage to insert and withdraw pile wires, and wire transfer mechanism for carrying the forward end of a withdrawn pile wire rearwardly opposite the open shed, including a casing mounted near the front of the loom, a rod supported thereby for rearward movement and provided with wire engaging means, and means supported by said casing for periodically actuating said rod.

8. In a loom employing pile wires, in combination, a pile wire carriage, a guide-way for the carriage, means for reciprocating the carriage to insert and withdraw pile wires, and wire transfer mechanism for carrying the forward end of a withdrawn pile wire rearwardly opposite the open shed, including a rack mounted near the front of the loom for rearward sliding movement and provided with wire engaging means, and cam actuated mechanism for shifting said rack.

9. In a loom employing pile wires, in combination, a bottom shaft, a pile wire carriage, a guide-way for the carriage, means for reciprocating the carriage to insert and withdraw pile wires, and wire transfer mechanism for carrying the forward end of a withdrawn pile wire rearwardly opposite the open shed, incuding a slide supported for sliding movement transversely of said guide- Way, a wire engaging device mounted on the slide for yielding movement relative thereto, mechanism supported below the plane of the fabric for operating said slide and connections between said mechanism and the bottom shaft for actuating said mechanism.

10. In a loom employing pile wires, in combination, a pile wire carriage, a guideway for the carriage, means for reciprocating the carriage to insert and withdraw pile wires, and Wire transfer mechanism for carrying the forward end of a withdrawn pile wire rearwardly, including wire engaging means supported for movement transversely of said guide-way, and mechanism mounted in front of the lay for actuating said wire engaging means.

11. In a loom employing pile wires, in

combination, a pile wire carriage, a guideway for the carriage, means for reciprocatlng the carriage to insert and withdraw pile wires and wire transferring mechanism for carrying the forward end of a withdrawn p1le w1re rearwardly, including a wire engagmg finger, a bracket adapted to support the finger and advance it transversely of said guide-way, and means for pivotally securing the finger to the bracket so that it normally extends in a downward direction but is free to yield frontwardly and rotate relative to the bracket when a wire jams.

12. In a loom employing pile wires, the combination of means for inserting and withdrawlng pile wire, and pile wire transfer mechanism for carrying the forward end of a withdrawn pile wire rearwardly for insertion into the shed, comprising a member mounted for movement transversely of the p1le w1re and provided with a pile wire engaging device mounted for yielding movement so that should the pile wire fail to be moved rearwardly by said device the latter may yield and prevent breakage or damage to the parts.

13. In a loom employing pile wires, the combination of a pile wire carriage, a guideway for the carriage having a transversely extending groove adjacent its inner' end, means for reciprocating the carriage to insert and withdraw pile wires, and pile wire transfer mechanism for carrying the leading end of pile wire rearwardly opposite the shed, including a member movable transversely of the guide-way and having a pile wire engaging portion extending into the transverse groove of the guide-way as said member is actuated.

14. In a loom employing pile wires, the combination of a pile wire carriage, a guideway for the carriage having a transversely extending groove adjacent its inner end, means for reciprocating the carriage to insert and withdraw pile wires, and pile wire transfer mechanism for carrying the leading end of pile wire rearwardly opposite the shed, including a member movable transversely of the guide-way and having a pile wire engaging portion yieldingly mounted on said transversely movable member and extending into the transverse groove of the guide-way as said member is actuated.

15. In a loom employing pile wires, the combination of means for inserting and withdrawing pile wire, and pile wire transfer mechanism for carrying the forward end of a withdrawn pile wire rearwardly for insertion into the shed, comprising a membermounted for movement transversely of the pile wire and provided with a pile wire engaging device mounted for yielding movement so that should the pile wire fail to be moved rearwardly by said device the latter may yield and prevent breakage or damage to the parts, and a fixed guide mounted between the pile wire engaging device and the warp threads to limit rearward movement of the end of the pile wire by the yielding engaging device.

In testimony whereof, I have signed my name to this specification.

EDWIN W. SIONE.

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