US1749840A - Loom for weaving fiber reed - Google Patents

Description

March 11, 1930. NQRDSTROM 1,749,840

LOOM FOR WEAVING FIBER REED Filed Aug. 17, 1928 4 Sheets-Sheet 1 a??? fum ifimg LOOM FOR WEAVING FIBER REED Filed Aug. 1'7, 1928 4 Sheets-Sheet 2 \Illllllllllllll 4 Sheets-Sheet 3 aw?" art/'02?) G. E. NORDSTROM LOOM FOR WEAVING FIBER REED Filed Aug. 17, 1928 March 11, 1930.

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amr r J/ March 11, 1930. NORDSTRQM 1,749,840

LOOM FOR WEAVING FIBERREED Filed Aug. 1'7, 1928 4 Sheets-Sheet 4 @mrm w.

.GUS'I'AI 1. NOW, 01' GARDNER,

Patented -Mar. 11, 1930 UNITED STATES "PATENT orrlca I'IBBE CORPORATION, OF GARDNER, GEUSETTS Loon r03 wnavme rnsna m1:

Application ma August 1?, 1928. Serial in. 300,342.

I through the shed of the fabric from one edge thereof.

It is one object of my invention to provide improved mechanism for thus intermittently feeding or shooting the fiber into the fabric.

- I have also provided a braking device for preventing overfeed of the fiber.

A further object of my invention is to provide an improved two-piece reed for use in such a loom, together with improved actuating mechanism therefor.

My invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawings in which Fig. 1 is a plan view of parts of a loom having my improvements embodied therein Fig. 2 is a front elevation of the feeding mechanism. looking in the direction of the arrow 2 in Fig. 1; Y

Fig. 3 is an enlarged sectional elevatlon, taken along the line 3-3 in Fig. 1;

Fig. 4 is a detail sectional view of a part of one of the feed wheels, taken along the line 44 in Fig. 3;

Fig. 5 is a side elevation of the feeding mechanism, looking in the direction of the arrow 5 in Fig. 1;

. Fig. 6 is a rear elevation of certain driving connections. looking in the direction of the arrow 6 in Fig. 5; J

Fig. 7 is a sectional side elevation, taken along the line 7-7 in Fig. 1 and showing the sliding reed and its support;

Fig. 8 is a partial front elevation of the reed, looking in the direction of the arrow 8 in Fig. 7;

Fig. 9 is an enlarged sectional side elevation, taken along the line 99 in Fig. 8;

Fig. 10'is a detail bottom view of a portion of the reed, looking in the direction of the arrow 10 in Fig. 9; v

Fig. 11 is a sectional plan view, taken along the line 1111 in Fig. 9;

displacement of Fig. 12 is a detail sectional plan view of the mechanism for cutting the fiber after shooting;

Fig. 13 is a side elevation of the actuating meghanism for the sliding two-piece reed; an

Fig]. 14 is a view similar to Fig. 9, but showing t e parts in different positions.

Fiber feeding mechanism I will first describe the mechanism for feedmg or shooting the fiber F into the shed of the fabric.

In Fig. 1 I have shown a portion of a loom frame having harness mechanism 21 mounted thereon and having a reed or beater 22 mounted on brackets 23 and slidable on the loom side 20. The harnesses are actuated by suitable mechanism (not shown) to open the shed in the warp threads W, as indicated in Fig. 7.

The reed 22 is formed of upper and lower members 26 and 28 which, when closed, provide a passage extending from side to side of the loom.

Thefibcr reed is inserted in the fabric by pushing or shooting the fiber through the passage formed by the parts 26 and 28 Where the parts 26 and 28 are in assembled relation, as indicated in Fig. 14. r

The fiber is fed from a suitable roll or creel to a passage 32 (Fig. 2) in a fixed guidemember 33. The guide-member presents the reed F between feed discs 35 and 36. The edges of the feed discs are grooved, as indicated at 37 in Fig. 4, and thus prevent lateral the fiber.

The feed discs 35 and 36 are fixed to gears 38 and 39 by which they are positively rotated. The gear 38 is mounted on a shaft 40 (Fig. 5) rotatable in fixed bearings and connected by bevel gears 41 and 42 with an intermediate shaft 43 having a bevel pinion 44 Fig. 6) engaging a bevel gear 45 on a main driving shaft 46 which is continuously rotated from any convenient source of power.

The teeth of the gears 38 and 39 are made of unusual length, so that the upper gear 39 may be raised and lowered more or less without disengaging the gears.

uassa'cnusn'r'rs, assrexon r0 nmarcm nassacnusnr'rs, a oonrourron or mesa- The upper gear 39 and its disc 36 are mounted on a stud (Fig. 1) secured in a rocking lever 51, pivoted on a fixed stud 52 and having a rod, or link 54 connected thereto by a stud 55 mounted in an arm extending rearwardly from the hub ofthe lever 51.

The rod ()1- link 5.; (Fig. 5 is provided with a collar 56 engaging a bracket or projection 57 and limiting downward movement thereof.

A second collar 58 on the rod 54 is engaged The two cam portions 67 and 68 may be adjusted angularly relative to each other, to vary the feed of thefiber'in accordance with the width of the fabric being woven.

A spring 70 (Fig. 5) engages a third collar 71 on the rod 54 and forces the rod yieldingly upward as far. as is permitted by the cam lever 60. A spring .72 (Fig. 5) also acts to apply yielding pressureto the cam lever 65.

I The parts are shown in'inoperative position in Fig. 5. with the feed discs-35 and 36 separated. When the roll 66 drops into the low space between the members 67 and 68, the cam 63 is rocked to the right and the roll 62 drops, permitting the rod 54 to be moved yieldingly upward by the spring 70. This action pushes the upper feed disc 36'downward against the fiber which is resting on the groove on the lower feed wheel 35.

A brake rod 74 (Fig. 2) is slidable vertically in the outer end of the feed lever 51 and is pressed yieldingly upward by a spring 75. The lower end 76 of the rod 74 is bent forward, as indicated in Fig. 5,- and extends under the fiber F. When the lever 51 is rocked toseparate the feed discs and stop the feed, the offset end 76 presses upward on the under side of the fiber and acts as a brake to prevent overrunning of the fiber.

Briefly summarized, my improved feeding mechanism comprises upper and lower feed discs 35 and 36, continuously rotated and a1,-

- ternately moved toward and away from each by the cam lyextending slots 82 (Fig. 8) adapted to receive the warps.

The lower reed member '28 is mounted on a cross shaft 84 pivoted in bearings 85 (Rig. 7) in the sliding brackets 23 and is provided with an. operating arm, 86- (Fig. 13). The

member 28 is also provided with slots 88 for the warps, said slots 88 being vertically aligned with-the slots 82 previously described. he member 28 is provided with a shoulder 89 having a recess or groove 90 formed therein. A ledge 91 on the frame of the reed 22 forms a stop, limiting rearward'movement of the reed member 28.

In Fig. 10 I have indicated that the sec tions of the groove or recess 80 are provided with enlarged or bell-shaped entrances 93 adjacent each slot 82, so that no obstruction will be presented to free insertion. or shooting of the fiber filling therethrough.

In Fig. 11, I have indicated that the entrance sides 'of the sections of the groove are similarly bevelled off to tion, as indlcated'at 94.

When the partsare inthe closed sition indicated in Fig. 14, the recess 80 an groove 90 co-operate to form a passage through which the filling. is accurately and easily guided.

' Reed operating mechanism The mechanism for opening and closing the reed and for sliding the brackets 23, is clearly shown in, Fig. 13. -A cam is mountedon the main driving shaft 46 and engages a cam roll 101 on an arm 102 forming one part of a bell crank lever. A second arm '103 thereof is connected by a link 104 to a slide 105, vertically movable in guideways 106. The upper end of the slide is slotted horizontally to receive a stud 107 in the arm 86 previously described.

' As the cam'swings the-arm 102 outward, the arm 86 will be swung downward and the reed member 28 will be swung rearward to open the reed.

As the low part of the cam comes opposite the roll 101, the parts will be restored to closed position by the action of a spring 108. The long horizontal slot in the slide holds the reed open during the movement of the brackets 23 for beating up the' fiber filling. V

prevent obstrucforced ownward as the shed closes. brackets 23 thereafter slide rearwardly, the

from the guiding means,

The slide 23 is provided with a link 120 (Fig. 13) connecting said slide to a lever 121 pivoted at 122 and having two depending arms 123 and 124. A cam roll 125 on the arm 123 engages a cam 126, and a cam roll 127 on the lever 124 engages a second cam 128.

The cam 126 operates to draw the sliding brackets 23 rearward or to the right (Fig.

13) and the cam 128 pushes the brackets to b the left in Fig. 13 for the beat-up operation.

Reed cutting devices It is necessary to cut each reed after it is inserted and before the beat-up operation. The inner end of the guiding. tube 78 (Fig. 12) is inserted in fixed position in a portion of the loom side 20 or in a stand or bracket secured thereto. A knife130 is fixed to the loom frame 20, with an opening aligned with the tube 78. The slide 23 has an opening 131 aligned with the rearward position. As the slide 23 moves forward, the fiber filling will be cut out between the edges of the slide 23 and the knife 130.

Operation of the two piece reed I have already described how a piece of fiber is fed or shot through the shed of the loom at each opening of the shed. At the time the fiber is shot, the parts, 26 and 28 of the reed are positioned as indicated in Fig. 14, the recess 80 and the groove 90 formin a passage for the guidance of the fiber filling. As soon as the filling is inserted, the brackets 23 begin their forward sliding movement, causing the reed to be cut by the knife 130,

At the same time, the arm 86 (Fig. 13) is actuated to swing the reed'member 28 rearward to the position indicated in Fig. 9. This leaves the filling F unsupported in the recess 80 and the filling consequently falls down in front of the lower part of the reed member 28, by which the new piece of filling is beaten into the shed.

If for any reason the filling should stick in the roove 80, 'it will be automatically As the as above described.

cams operate again to close the reed, returning it to the position indicated in Fig. 14, ready to receive another piece of fiber.

I have thus provided very simple, reliable and effective mechanism for intermittently feeding or shooting the filling into the shed, for guiding the filling during its sage across the shed, for releasing the filling and for beating-up the fabric. of simple construction,

the filling at the fell of All of the parts are and provision is made, in the connections of the cam pieces 67 and 68, whereby the effective rotation of the feed discs 35 and 36 may be made of any desired duration.

tube 78 when the slide is in- Having thus described my invention and the advantages thereof, I do not wish to be limited to the details-herein disclosed, otherwise than as set forth in the claims, but what I claim is 1. In a loom for weaving relatively stiff filling, a beat-up device comprising two relatively movable members, the upper member eing fixed in said device and the lower member being movably mounted therein and being movable into and out of engagement with said upper member to form a filling guide.

2. The combination in a loom as set forth in claim 1, in which the upper member has a filling recess in its lower edge which is closed by said lower member during inser- .tion of filling and which is thereafter opened by removal of said lower member to release the inserted filling for the beat-up operation.

3. The combination in a loom as set forth in claim 1, in which the upper member has a filling recess in its lower edge and the lower member has a forwardly projecting shoulder effective to underly and close said recess when in forward position.

4. The combination in a loom as set forth in claim 1, in which said upper and lower members have vertically aligned slots for receiving and guiding the warps of the fabric.

5. The combination in a loom as set forth in claim 1, in which the lower member extends behind and above the lower part of said upper member.

6. In a loom for weaving relatively stiff fillin a beat-up device having relatively mova le members, slidable supports for said device, means to cause successive relative movements of said members to filling guiding and filling releasing positions, and means to cause sliding movement of said supports to thereby move said members and beat up the filling.

7. In a loom for weaving relatively stifl filling, a beat-up device having relatively movable members, slidable supports for said device, and cam means to cause successive relative movement of said members to filling guiding and filling releasing positions and sliding movements of'said supports in predetermined time rclation to the movements of said members.

8. The combination in a loom as set forth in claim 1, in which the lower member extends behind and above the lower part of the upper member and in which a stop is rovided in fixed relation to said upper memer which stop limits the movement'of said lower member relative to said upper mem- In testimony whereof I have fixed my signature.

GUSTAF E. NoRDsTRoM.

hereunto af-

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