US1074737A - Spinning machinery. - Google Patents

Description

J. J. OGONNOR.

SPINNING MACHINERY.

APPLICATION FILED MAE.19, i913.

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Patented Oct. 7

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J. J. OGONNOR.

SPINNING MACHINERY.

APPLIOATION FILED MAR.19, 1913.

Patented Oct. 7, 1913.

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' JOHN J. OCONNOR, OF PAWTUCKET, RHODE ISLAND.

SPINNING MACHINERY.

Specification of Letters Patent.

Application filed March 19, 1913.

Patented Oct. 7,1913. Serial No. 755,507.

To all whom it may concern Be it known that 1, JOHN J. OCoNNoR, a citizen of the United States, residing at Pawtucket, in the county of Providence and State of Rhode Island,have invented certain new and useful Improvements in Spinning Machinery, of which the following is a specification.

My invention relates to improvements in spinning machinery and the purpose of my invention is to provide a means for varying at will the speed of the feed and delivery rolls; the ultimate purpose of the variation of speed being to produce a yarn which will vary in size upon the same cop or spool so that within certain limits the size of the thread may be changed tov other sizes for any required length. I accomplish these purposes by the mechanism shown in the accompanying drawings, in which- Figure 1 shows an end view of a spinning frame to which my device is attached. Fig. 2, a top view showing the rolls upon each side of the frame and the gearing and driving mechanism thereof with my device attached. Figs. 3 and t, details of the cams accomplishing the changes in speed of the rolls. Fig. 5, a side View of a drawing of the frame with my device attached. Fig. 6, further details of my invention showing the operation of the cams and their influence on the shipper lever.

The same parts are indicated by the same letters throughout the several views.

It is a well known fact in the art of spin ning that a change of the relative speed of the delivery and feed rolls results in a change in the thickness of the spun product and various methods of making the changes in the speed of the rolls have been heretofore used. Many of them are used for the production of threads or yarns having thickened portions at regular intervals while some have for their purpose the production of different sizes at any predetermined intervals, but this latter purpose has heretofore been accomplished, so far as is known to me, by the use of additional rolls or aux iliary roving, while my invention requires no change in either the rolls or the roving of an ordinary spinning frame.

My invention, in substance, embraces an endless chain carrying detachable cams which engage a shipper lever operating a belt upon opposed conical pulleys; the cams serving to change the shipper and belt from point to point upon the cone pulleys, thus varying the speed of the feed and delivery rolls which are driven by the cone pulleys.

In Fig. 1, (Z is the end of an ordinary spinning frame; 9 being the cop or spool, and t -t the thread which is being spun upon the same. gg are opposed cone pulleys supported by the frame and operated by the belt f which is driven by the pulley h and engages the idler pulley z"-z" which is supported also by the end of the frame. Fixed upon the shafts of the cone pulleys gg are the pinions oo driving respectively the gears o u The pulley h is driven by the main shaft of the frame.

The gear o through intermediate gears and pinions, not necessary to be shown, operates the delivery rolls t on the right side of the frame and also through the gears 2fo" and o operate the delivery rolls 2? on the left side of the frame. The feed rolls 27-6 upon the right and left sides of the frame, respectively, are operated by the gears ww which are themselves operated by the cone pulley g through the pinion '0 the gear if, the pinion a and the gear 10 It will thus be seen that the right hand cone 9 operates the delivery rolls tt on bothsides of the machine, while the left hand cone 9 operates the feed rolls tt on bot-h sides of the machine. It follows, therefore, on account of the opposition of the cones that as the delivery rolls increase in speed the feed rolls are retarded and vice versa.

Fixed upon the same shaft which drives the gear to, is the sprocket wheel n This through a sprocket chain a e which is shown in Fig. 5, operates the sprocket wheels nn, conveying motion to the sprocket wheels 12 and thus to the auxiliary cam chain e-e', which runs from the overhead sprocket n to the sprocket wheels 91. attached to the arm at which is bolted upon the end of the frame 0?. The end cl also carries the bracket 0 which has upon it the shipper lever a-a carrying the shipper fork a which operates upon the endless belt The sprocket chain ec is adapted to receive throughout its entire length the cams e which may be inserted at any point or points upon 6' 6 and which are carried around by the latter in its revolution. The direction of the sprocket chain ee is indicated by the arrow. The shipper lever a-a is bent approximately at right angles and pivoted at the angle upon the pin 6. Connected to y the shipper lever midway between the shipper fork a and the pivot b is the spring fixed at the other end upon the projection Z attached to the member of the frame (Z, this spring 7' serving normally to keep the shipper lever and the belt f', in the relative posi tion shown in Fig. 5. It will be seen by an inspection of this figure that the cams ec, etc. are of different depths, that is they proj ect outwardly from the sprocket chain c'e more or less as may be desired. These cams are shown in detail in Figs. 3 and l. the former being a side view and the latter a back view of the sprocket chain with one cam annexed. In these figures ee represent the sprocket chain proper, while e-e represent a single cam which is capable of being put into a sprocket chain at any one of its cross bars.

Attached to the cam e is a shoe 6@ which is fixed to e by means of a bolt and nut 0 The shoe 6 6 serves to preserve the cams from wear and is made preferably of a harder metal such as steel or the like, and it also serves to break the joints between. the cams. The operation of these cams in the shifting of the belt is as follows :As the chain e e comes downward bearing its attached cams the latter strike the arm a of the shipper lever and push it downward a distance corresponding to the depth of the cam, thus shifting the belt, f, as shown in Fig. 6, from the small toward the large end of thecone pulley g. The belt is maintained at that position until the cams have entirely passed the lever arm a, when the belt through the agency of the shipper and spring j returns to its original position.

It will be seen from an inspection of Fig. 5 that some of the cams project farther from the face of the chain than others; these deeper cams evidently serving to shift the belt f still farther toward the large end of g, and in like manner the belt f may be shifted from the small end the entire distance to the large end of the cone pulley g, and may be kept for any predetermined time at any point between the two ends of the pulley.

It will be remembered that the delivery rolls of the machine 011 both side are driven by the pulley g and the feed rolls by the op posite pulley g. It will thus be seen that by means of the sprocket chain 6, the cams e the shipper lever aa, the attached shipper fork a and the pulleys 9-9, the speed of the feed and delivery rolls may be changed at will between the limits fixed by the dimensions of the cone pulleys gg. It is further apparent that the changes of speed of the feed and delivery rolls are inverse to each other, that is to say, as the feed rolls are retarded, the delivery rolls are increased in speed and vice versa. In practice, however, itis impracticable to run the feed rolls at a faster rate than the delivery rolls because if this were "done the roving would loop or accumulate between the rolls and become entangled within the machinery. By the use of my device neither the feed or delivery rolls are stopped at any part of the process of spinning, and no additional or auxiliary roving is required, as the effect aimed at by my invention is secured with the usual supply of roving and without any auxiliary or additional rolls over and above those found on the ordinary spinning frame. The roving being of a fixed and definite size, it is clear to one skilled in the art of spinning that as the speed of the delivery 7 rolls is increased beyond that of the feed rolls the roving or sliver is made more attenuated, and as the speed of the cops or bobbins -g is uniform, it is evident that a thinner or finer thread will beproduced. On the other hand, it is also apparent that if the speed of the delivery rolls is'retarded until it is the same as that of the feed rolls, the maximum size of thread will be spun upon the cops or bobbins gq.

It follows from the foregoing description that any given size of thread within certain limits, as before stated, may by means of my device be spun upon the same cop or bobbin and that the length ofthe thread spun of any given size within the capacity. of the cone pulleys maybe anything that the operator desires.

It-is not. absolutely necessary to use two opposed cone pulleys in the operation of my invention; a single cone pulley actuating the feed rolls, the delivery rolls being run by an ordinary pulley the two having a common belt and using a sliding idler suitably weightechinay be used to accomplish substantially the same results; but it is evident that this is merely a variation of my invention and involves the same principles; and I find in practice that duplicate opposed pulleys are simpler in construction and adjustment, and produce more satisfactory results.

Having now described my invention,

what I claim and desire to secure Letters Patent is V 1. In a spinning frame a device for varying the relative speeds of theQfeed and de-' livery rolls comprising a cone pulley operating the feed rolls; an opposed cone pul-' ley operating the delivery rolls; an endless belt connecting said cone pulleys with each other and with a driving pulley on the main shaft of the frame; a shipper lever adapted to move said belt to any portion of the surface of said cone pulleys; an endless 'T I chain operated by the driving shaft of the frame; and cams mounted upon said chain and arranged to engage and operate the shipper lever. at predetermined intervals, substantially as specified. V

2. In a mechanism for varying the relative speed of the feed and delivery rolls of a spinning frame, the combination of an endless chain driven by the driving shaft of the frame; cams varying in depth mounted upon said chain; a shipper lever actuated by said cams the extent of movement of said shipper lever being determined by the depth of said cams; a pair of opposed cone pulleys one of them operating the feed rolls and the other the delivery rolls of the frame; an endless belt connecting said cone pulleys with each other and With a driving pulley fixed on the main shaft of the frame and transmitting motion to said belt, said belt being capable of being changed in position upon the surfaces of said cone pulleys by means of said shipper lever; and feed and delivery rolls actuated by said cone pulleys substantially as set forth.

In testimony whereof I aflix my signature in presence of tWo Witnesses.

JOHN J. OCONNOR.

Witnesses:

Rosoon M. DEXTER, EDITH M. BROMLEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0.

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