US1660500A - Rectilinear combing machine - Google Patents

Description

' Feb. 28, 1928.

J. WEINBRENNER REGTILINEAR COMBING MACHINE Filed June 6, 1925 Patented Feb. 28, 1928.

JULES WEINBRENNER, OF THANN, FRANCE.

RECTTLINEAB COMBING MACHINE.

Application filed June 6, 1825, Serial No. 35,461, and in France October 3, 1924.

p The presentinvention relates to rectilinear combing machines and it has for its general object to provide novel means for increasing the output of the machine. The invention is applicable wholly or in part to any kind of rectilinear combing machine but more especially to Nasmith and like combining ma chines.

In the ordinary rectilinear combing machine the output is limited by the thickness of the sliver which the nipper is capable of holding and according to the present invention I am able to increase the output of the machine by providing means supplementary to the nipper to assist the latter in bold ing the sliver during the combing of the head and during the drawing-off operation. In the construction shown this supplementary sliver-holding means is in the form of a supplementary comb which is situated between the upper jaw of the nipper and the feed roller and co-operates with the lower jawof the nipper.

Another feature of the invention relates to the feed roller. The feed roller as ordinarily constructed is merely a fluted roller which functions only as a feed member. According to the present invention this roller is es pecially constructed so that it not only functions as a feed roller but also assists in holding the sliver during the combing of the head and to prevent portions of the sliver from passing below the fixed comb during the drawing-0E.

The accompanying drawing shows by way of example constructional forms of supplementary retaining means inaccordance with the invention applied to a Nasmith or like combing machine.

Fig. 1 shows in section the nipper with a supplementary comb mounted on the upper jaw and ashoulder formed on the lower aw. the feed roller and the usual top comb and detaching rollers being also shown in section and a portion of the periphery of the circular comb being indicated by a dot-anddash line.

Fig. 2 shows a slightly different construction of the lower jaw of the nipper.

Fig. 3 shows supplementary means for cooperating with the feed roller.

Fig. 4 shows a new form of feed roller for a Nasmith combing machine.

Figs. 5 and 6 show in section and in elevation a variation of the; construction of the upper jaw of the nipper shown in Fig. 1, and

Fig. 7 shows another constructional form of the lnvention.

In Fig. 1, a is the circular comb, b the upthe upper jaw of the nipper to engage the.

sliver and augment the action of the nipper in holding the sliver during the action of the circular comb. The device herein shown for this purpose is a supplementary comb and in Fig. 1 this supplementary comb is indicated at d and is secured to the upper jaw b of the nipper, the supplementary combd being constructed so that when the jaws are closed said comb will engage the lap or sliver. To ensure that this supplementary comb d enters well into the lap or sliver, the lower jaw c is formed at a suitable point with a projecting part or shoulder 6 and the comb d is mounted so that it makes an angle a little greater than 90 with the said jaw on thefeed side. When this comb. (Z is pressed well into the lap it prevents the lap from slipping when acted on by the circular comb.

Instead of providing the projection c, a

groove 9 may be formed in the lower jaw c (Fig. 2) into which the head of the sup plementary comb d projects a little, thisarsec rangement ensuring also that the comb enters sufliciently far into the lap.

As already mentioned, the feed roller used on Nasmith and like machines can only serve to feed the lap, being simply fluted, whereas in accordance with the present invention the said roller is so formed that. without affecting its efficiency as the feed member, it assists in retaining the lap during the combing of the head and then during the drawing-off. For these purposes the acting surface of the roller is formed with peripheral and transverse grooves, as shown in Fig. 4;, so that the said surface is asit were studded with small pyramids. These pyramidal projections may be formed by embossing or milling or in any other way.

The grip of the feed roller during the combing of the head and then during the drawing-off is still further increased by providing means which co-operates with the over which the lap passes. The presence of this straiglit edge will cause the lap to engage the feed roller on at least a quarter of its circumference and the feed roller thus augn'ients the action 01 the nipper and the supplementary comb in holding the sliver during the operation of the circular comb.

The straight-edgeh is preferably adjustable in relation to the feed roller f. Other means than the straight-edge may be employed for causing the sliver to engage a considerable portion of the circumference of the feed roller without in any way departing from the invention.

Figs. 5 and 6 show a construction of the upper jaw Z) of the nipper which may be adopted. Instead of providing the supplementary comb (Z, the heel i of the said jaw is formed or provided with teeth or projec tions to form a comb. T heresult obtained is similar to that obtained by means of the comb cl.

The constructional form of the invention shown in Fig. 7 comprises a supplementary comb which is independent of the upper b of the nipper. This supplementary comb k is shown as provided with two rows of teeth Z, but it mayhaveonly one row, or several rows; it is carried by a two-armed lever which is mounted on a spindle n journalled in brackets 0. A spring 9 bears against one arm m so that it presses the comb 70 towards the lower jaw c of the nipper. The other arm m carries at its free end a roller 7" which, influenced .by an inclined plane 3), gives to the comb 7s a movement analogous to the movement of the upper jaw. This arrangement may be varied, or it may be replaced by some other mechanism that ensures the putting into action of the supplementary comb at the required times.

I claim: 1. In a rectilinear combing mach ne, the

combination with a circular comb, a nipper,

a feed roller, of means situated between the nipper and the feed roller to engage the sliver and assist the nipper in holding said sliver during the combing of the head and during the drawing-off.

2. In a rectilinear combing machine, the combination with a circular comb, a nipper, and a feed roller, of a supplementary comb situated between the nipper and the feed roller and adapted to engage the sliver and assist the nipper in holding the latter during combination with a circular comb, of a nip-' per comprising upper and lower jaws, a feed roller and a supplementary comb carried by the upper aw and co-operating with the lower jaw to assist the nipper in holding the sliver during the combing of the head and during the drawing-oil.

5. In a rectilinear combing machine, the

combination with a circular comb, of a nipper comprising upper and lower jaws, a

feed roller, and a supplementarycomb situated on the feed side of the upper jaw and co-operating with the lower aw to assist the nipper in holding the sliver during the combing of the head and during the drawing-cit.

6. In a rectilinear combing machine, the combination with a circular comb, of a nipper comprising upper and lower jaws, a feed roller,anda supplementary comb situated on the feed side of the upper jaw and forming therewith an angle a little greater than 90, said lower jaw having a re-entrant portion with which the teeth of the supplementary comb co-operate, whereby said supplementary comb assists the nipper in holding the head during the combing of the head and during the drawing-off.

7. In arectilinear combing machine, the combination with a circular comb, of a nipper, a feed roller having its surface formed with radially-arranged pyramidal projections, and means co-operating with the feed roller over which the sliver is fed to cause the. sliver to emb ace said roller on an appreciable arc of its periphery.

8. In a rectilinear combing machine, the combination with acircular comb, of a nipper, a feed roller having its surface formed with *adially-arranged pyramidal projections, and a straight-edge adjustably mounted directly behind the feed roller and between which and the feed roller the sliver passes, whereby the sliver has contact with J. VVEINBRENNER.

portion of the periphery of

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