US1292717A - Top-feed-roll holder for cotton-combers. - Google Patents

Description

F. L. CROCKETT. TOP FEED ROLL HOLDER FOR COTTON COMBERS. APPLICATION FILED MAY 29. 1917.

1,292,717. Patented Jan. 28, 1919.

pnrrnn s'ra'rns PATENT carton.

FRANK L. CROCKETT, OF NORTH UXBRIDGE, MASSACHUSETTS, ASSIGNOR TO WHITIN MACHINE WORKS, 0F WHITINSVILLE, MASSACHUSETTS, A CORPORATION OF MASSA- CHUSETTS.

TOP-FEED-ROLL HOLDER FOR COTTON-COMBERS.

Specification of Letters Patent.

Patented Jan. 28, 1919.

Application filed May 29, 1917. Serial No. 171,633.

To all whom it may concern:

Be it known that I, FRANK L. CROCKETT, a citizen of the United States, residing at North Uxbridge, in the county of WVorcester and State of Massachusetts, have invented the followingdescribed Improvements in Top-Feed-Roll Holders for Cotton- Combers.

The invention concerns the holder and pressure means of the lap feed-rolls ofcotton combers, its object being to facilitate the lifting or removal and replacement of the top feed roll which is otherwise extremely awkward of removal because of the pressure to which it is subjected and of its proximity to other arms and parts 111 the combing head. According to the present invention the lifting of the top toll is accomplished with a minimum of inconvenience and entirely from the front of the comber.

The prinicple of the invention is illustrated herein, referring to one of the forms of the invention which is at present preferred.

In the drawings,

Figure 1 is a side view of one of the top roll holder arms and its pressure means, the same being a view in section through part of the comber head of a standard type comber.

Fig. 2 is a top plan of the same mechanism, showing its relation to the immediately adjacent mechanism and illustrating the proximity of the holder arm to the adjacent parts.

Fig. 3 is a view following Fig. 1, but indicating the holder arm in a partially collapsed condition; and

Fig. 4 is an end view tail.

In these drawings the upper and lower lap feed-rolls 1 and 2 will be recognized by their location directly in rear of the nipper jaws 3, and it will be understood that in the type of machine taken for illustration, the lower feed-roll 2 is a continuous shaft common to all the heads of the comber and driven from one end thereof, while the upper feed roll is individual to each head and held in place on the lower roll, so that rotation of the latter will feed the cotton lap through the nipper jaws 3 and toward the comb cylinder indicated at 4. The top roll is removably held in its said position on the of the arm in delower roll by a pair of holder arms, one at each side of the combing head, 2'. 6., at each end of the top feed roll, and pivotally mounted on an upper part of the machine frame. Only one of such arms is shown in the drawings, but they are both' alike, and except for the provision of the knuckle joint, need not be different in location, size or shape, from the top feed-roll arms heretofore in common use. Each arm is composed of two arm members 5 and 6, knuckle-jointed to each other at about the middle of the arm. One member, 5, is formed with a downwardly opening notch 7 at its forward end for engaging the gudgcon of the feedroll 1, and the other member 6, is mounted on a pivot screw 8, carried by a cap block 9. This block is gibbed to the bearing block 10 on the intermediate frame upright 11, and is. provided with an oblong slot 12, through which it is bolted to the said block and by means of which the holder arm can be adjusted backward and forward according to the position desired for the top feedroll 1.

In the normal or extended position of the holder arm illustrated in these drawings, it

acts exactly like the common feed roll arm,

being subject to the pressure of a powerful sprlng 13, hooked to the stud 14 on the arm member 5, the lower end of the spring being fastened to the spring bracket 15 by an adjustable connection.

In the type of comb illustrated, as well as in other types, the feed-roll arm is of necessity closely related to the top comb arm 16, (Fig. 2), and the nipper knife arm 17, being in fact located between these arms and under the ofi"set 18 of the top comb arm. In this position the common unjointed top-roll arm is extremely difficult to grasp and raise when it is desired to remove the feed-roll, and such removal is generally accomplished by going around to the rear of the machine and detaching the spring 13, and then returning to the front of the machine to swing the holder arms upwardly and remove the roll. For this purpose the top comb arm must be displaced to give access, and the operation is, in any event, not readily performed. According to the present invention and by virtue of the hinged or collapsible nature of the holder arm 5-6, it can be disengaged from the top feed roll, if desired, without releasing the spring and merely by breaking the knuckle joint so as todraw the gudgeon notch 7 rearwardly, whereupon the top-roll will drop free. It is preferable, however, in point of convenience, to: release the spring pressure before collapsing the arm, and for this purpose my invention also includes the formation of finger-pulls 19 at the upper ends of the springs 13, so that the operator may unhook the springs from the front of the machine. With the pressure thus removed, the arms may be collapsed in a generally rearward direction, which releases the top roll independently of the position of the other parts.

It will be understood that the pro-vision of the knuckle joint in the holder arm, is merely as a preferred means of rendering the arm members relatively movable, so as to adapt the roll-engaging member 5 to be displaced or collapsed in a rearward direction and that other equivalent means to this end are contemplated by the appended claims. It will likewise be apparent that while the finger pulls on the springs have a special cooperation with the collapsible holder arms of the present invention, they are also independently useful with non-collapsiblearms, and provide a very great convenience to the operator, being quickly removed and as easily replaced. The fingerpulls extend forwardly and upwardly at one side of the forward end of the top comb arms 16.

I claim:

1. Means for supporting the lap feed rolls of cotton combers, comprising a pair of arms formed for engagement with the ends of the lap feed roll and composed of connected, relatively movable members, each arm form ing in efi'ect a single lever having a bearing at one end upon a fixed part of the comber, the roll engaging members thereof being displaceable in the direction of the length of said arms to remove the roll,and means for exerting pressure on said arms for transmission thereby to the feed roll.

2. Means for supporting the lap feed rolls of cotton combers, comprising a pair of arms, each composed of connected, relatively movable members adapted to function as a single lever arm, one member having a bearing on a relatively fixed part of the comber, and another having pressing engagement with the end of the feed roll, and a pressure means connected to one of said members to impart pressure to the feed roll.

3. Means for supporting the lap feed rolls of cotton combers, comprising a pair of arms, each disposed between the vertical planes of the top comb and nipper knife arms having a terminal portion connected to a pressure means and engaging the ends of the lap feed roll, and means for supporting said arm on a relatively fixed part of the comber, whereby the said terminal portion may be displaced rearwardly to remove the feed roll.

4. Means for supporting the lap feed rolls of cotton combers, comprising a pair of-top feed roll arms, each knuckle-jointed near its middle, and means for applying pressure to said arms.

5. I11 a cotton comber the combination with the top comb and nipper knife arms, of a top feed-roll arm associated therewith, a spring exerting pressure thereon and a finger pull on the spring extending upwardly beyond its bearing upon said arm and adapting said spring to be disengaged from the top-roll arm from the front of the comber.

6. In a comber the combination of top comb and nipper knife arm with a top feedroll holder located intermediate thereof and having a portion engaging the feed roll and exerting pressure thereon, which said portion is movably mounted so that it can be displaced rearwardly to remove it from its feed-roll.

In testimony whereof, I have signed this specification.

FRANK L. CROCKETT.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents,

Washington, D. 0.

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