US452127A - Attachment for warring-machines - Google Patents

Description

(No Model.) 3 SheetsSheet 1.

T. A. DAVIS.

ATTACHMENT FOR WARPING MACHINES.

No. 452,127. Patented May 1.2, 1891.

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T. A. DAVIS.

ATTACHMENT FOR WARPING MACHINES.

No. 452,127. "Patented May 12, 1891.

i Inventor (No Model.) 3 Sheets-Sheet 3.

T. A. DAVIS.

ATTAGHMENT FOR WARPING MACHINES.

No. 452,127.. Patented May 12, L891.

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THOMAS A. DAVIS, OF MOUNT HOLLY, NORTH CAROLINA.

ATTACHMENT FOR WARPlNG-MACHINES.

SPECIFICATION forming part of Letters Patent No. 452,127, dated May 12, 1891.

Application filed August 15, 1890. Serial No. 362,051. (No model.)

To all whom it may concern.-

Be it known that I, THOMAS A. DAVIS, a citizen of the United States, residing at Mount Holly, in the county of Gaston and State of North Carolina, have invented certain new and useful Improvements in Attachments for IVarping-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention,such aswill enable others skilled in the art to which it appen- Denn-Warper, although the same may be applied to other warping-machines, as will be readily understood.

, My invention relates more particularly to the mechanism for cut-marking the warpthreads or ends, and its object is in this respect to so arrange the parts for this purpose as to give to the marking-swab a quick and positive motion, so that but a slight inkmark is applied to the selvage of the warp, and the swab is then positively returned to the ink trough or holder. By this arrangement all liability to splash or produce unsightly stains is entirely avoided. I

My invention moreover relates to the stopmotion which positively and automatically stops the machine when a predetermined length of warp has been wound upon the warp-beam, whereby a run-by is prevented,

which sometimes occurs through the care-' lessness of the operator not stopping the machine at the proper time. I effect this result by the employment of a counting mechanism which carries a revolving pin, stud, tripper, or equivalent device which at one pointin its revolution strikes against a movable piece of the unshipping or belt-shifting mechanism, whereby the belt from the driving-pulley is shifted from a fast to a loose pulley and the mechanism stopped in the ordinary lv ly invention also relates to such further details of construction and arrangement as will be pointed out below, and covered in the claims.

The nature of my invention and the manner in which the same may be carried into effect will be readily understood by reference to the accompanying drawings, in which Figure 1 represents a plan of so much of a warping-machine embodying my invention as is necessary to understand the same; Fig. 2, a vertical longitudinal section on line a: at, Fig. 1; Fig. 3, a detail view in sectional elevation showing the belt-shifting device; and Figs. a and 5 show the same parts in different relative positions. Fig. 6 represents a partial elevation of the right-hand side of the machine.

In all the views the same letters of reference designate the same parts.

The main shaft A of the machine, mounted in suitable bearings in the frame B and actuated by a suitable driving-belt from drivingshaft A imparts motion to the various parts of the machine, of which I will now describe those essential to the embodiment of my invention. The Warp threads or ends O pass from the holey or eye-board under the guide-rollerc, and thence to the warp or yarn beam in the usual manner. I have, for the sake of clearness, shown simply the threads or ends of one edge or selvage of the warp; but it will be understood that these threads in reality are to extend entirely across the machine. This is the selvage along which the cut-marks are to be applied to indicate in the finished textile at what place the same is to be cut. The mechanism for applying these cut-marks, which I term the cut-marking mechanism, is arranged and constructed as follows: Upon the main shaft A, which imparts motion to the warp-feeding mechanism, is fixed the worm a, meshing with the worm-wheel a, fixed on a shaft a suitably journaled and bearing the gear-wheel a in train with the gears a and a Of these gears, a is an idler and a is mounted on shaft D, j ournaled in bearings d d in the frame. Upon the shaft D is loosely mounted the triggerD', having a hub 61' encircling said shaft, and a spur-wheel d formed integral therewith and fixed thereto. The trigger Dand spur d are so arranged that they may slide and turn on the shaft D. A spiral spring 01 attached to the shaft D atone end, preferably to the collar d, and to the spur-wheel d at the other end, is coiled around shaft D under tension,

- trough.

so that it tends to always force the trigger forward away from the collar d", and also to turn it so as to impinge against a stop or stud E, fixed to the machine-frame. The trigger or some part attached thereto is provided with a tooth or inclined projection (Z engaging with the inclined tooth (Z on the shaft D, whose tendency thus is to force the sliding trigger away from the stop or stud E against the stress of the spring (1 and thus cause it to be revolved or swung around by the torsional strain of the said spring. In the present instance it will be noted that the shaft D is reduced a short distance behind the trigger, forming a shoulder (1, from which the inclined or beveled tooth (1 extends longitudinally forward and lies wholly within the annular recess formed between the said shoulder (Z and the hub d, the tooth also lying entirely within this recess. The spur wheel (1 meshes with a spurwheel F,fixed to a shaft f, journaled in bearingsf f. It will be observed that the spur d is of considerably greater thickness than the spur F. This is for the purpose that the former may slide upon the latter under the action of the beveled teeth d d without coming out of engagement therewith. Upon the shaft f is mounted a crank-wheel F to whose crank f is attached the pitman F-, which is connected at its other end to one arm of the bell-crank G, provided at its other arm with a swab, sponge, or other marker G, which normally dips in the ink-trough G located directly below the selvage ends of the warp O. The bell-crank G, with its marker G, I term for brevity the cut-marker.

The operation of the parts thus far described will now be apparent, and is as follows: As the main shaft A revolves in the direction of the arrow it imparts a slow movement to the gear-train a a" a through the worm and worm-wheel a. The shaft D is thereby caused to slowly revolve and the inclined tooth cl to slowly ride up on the inclined tooth d of the trigger D, forcing the latter away against the pressure of spring d until the forward end of the said trigger has cleared the stud E, when the torsional strain of the spring (1 will swiftly revolve the same and at the same time the forward pressure of the said spring will cause the trigger to slide forward on the shaft D to its original position,so that on the completion of one revolution it will again strike against the stud E, there to remain until the shaft D has completed another revolution. The trigger D and its spur d revolving cause the spur F, and with it the crank-wheel F, to revolve in the direction of arrow 2, and through the pitman F and bell-crank G carry the marker G positively and quickly upward against the ends 0 and as quickly positively back into the ink- This positive and quick forward and back motion enables me to apply a small inkmark at the selvage without spattering or de facing the fabric. The spring (1 and the inclined teeth (Z and ti" constitute what I term the tripping device. It is evident that, inasmuch as the periods of revolution of the trigger and consequently the cut-marker correspond exactly to a certain predetermined number of revolutions of the main shaftA and consequently to a fixed length of warp, this marking mechanism constitutes a precise measuring device for the lengths of the warp. A jingle or bell II, whose stem is pivoted on the stud h and is held in horizontal position against a suitable stop It" by its weight, is operated to give a signal as each cut-mark is made by the action of the pin h on shaft D, which at each revolution strikes against the tail 72/2 of the jingle.

Inasmuch as it is important that the warping-machine is stopped when a given length of warp has been wound upon the warp-beam, which is preferably a multiple of the lengths indicated by the cut-marker, I have devised a counter, which, when this length has been wound, will automatically stop the machine by shifting the belt or otherwise. By this means I avoid any danger of run-by through carelessness of the operator. The counting mechanism for this purpose is constructed as follows: Upon the shaft D is keyed or otherwise mounted the wheel or disk I, having a single tooth t', which tooth at every revolution of the disk I engages one of a series of indentations or recesses 11 in the disk I to turn the same one step. The number of recesses i on the disk I corresponds to the number of lengths indicated by the cut-marks it is desired to wind on the yarn-beam before stopping the machine. It will be noted that the periphery of this disk consists of a number of concave surfaces t located between the recesses i, which are each in turn brought into contact with the circular periphery 1' of the disk after the tooth has turned the said disk one notch, or the distance between the two recesses 1', whereby the disk I is firmly held against turning. The two wheels or disks I I constituting the counter are very similar to the well-known Geneva stop, as will be seen. The disk I is also provided with the two pins i", the latter of which, when the disk I has completed one revolution corresponding to the desired length of warp to be wound, trips the springheld bell-crank 1 hearing a hammer and lying in the path of the pin 01, and thus sounds the gong I to give the signal to the operator. The pin at the same time strikes the tailj of the lever J, pivoted loosely on the axle 1' of the disk I and urged forward by a spring j. A block, lug, or contact-piece 7;, fast on a sliding rod K, which slides in fixed bearings k, is held against the lower arm of the lever J, preferably by a spring K, coiled around the sliding rod and resting against one bearing 70' and attached to the rod at lo At one end the rod K is attached to one arm of a bell-crank L, whose other arm is attached to a depressing arm or red L, suitably guided in the machine-frame. This rod L terminates near the end of a lever M, pivoted at an intermediate point on the lower end of a belt-shifter catch M, pivoted to the machine-frame at m, and which engages a ing or pin '17., forming part of the spring-actuated belt-shifter N, and which, when swung in the direction of arrow 6, releases said beltshifter and allows it to be forced forward by the spring at to shift the belt. The other armof lever M normally lies under the lever 0, having a lug 0 extending from the lever and pivoted to the machine-frame at a point on said lug. A spring 0 tends to hold the lever 0 against the periphery of an eccentric or cam P, mounted on cross-shaft A, which is revolved continuously by belt S from main shaft A, whereby an oscillating movement is imparted to the lever O.

The operation of the counter and stopping mechanism is as follows: At every revolution of the shaft D, corresponding to the space between two cut-marks, the disk I also makes a complete revolution in the sense of the arrow 3, and at the end of its revolution the tooth 41 engages with one of the recesses 11 on the disk I, carryingit around one step in the sense of the arrow 4. The disk I is then held firmly against turning by the engagement of the circular surface 11 of disk I with one of the concave surfaces i of disk I. It will thus be readily seen that the length of the fabric will be accurately measuredbefore the stop mechanism, whose operation will now be described, is brought into action. hen the wheel or disk I has made a complete revolution, the pin '5 thereon strikes against the tail j of lever J, forcing it in the direction of the arrow 5. The lower end of the-lever J, pressing against the block it, draws the rod K against the stress of spring K, and, tilting the bell-crank L, depresses the rod L. Synchronously with this depression of rod L the eccentric P operates to swing the lever 0 from the position indicated in Fig. 3 to that in Fig. 4, carrying its lever-arm away from the end of lever M, permitting the latter to rise, as shown in said Fig. 4. When now, under the further action of the eccentric P and spring 0 the lower end of the lever O is carried against the lever M, it strikes against the end of the same, and pushing it forward carries the catch M to turn on pivot m, disengaging the same from the lug n and releasing the spring belt-shifter N, as shown in Fig. 5. The machine is thus stopped at the exact time when the desired length of warp, determined by the counter I I, has been wound upon the beam. At the same time the gong I is sounded by the means already described to notify the operator.

While I consider the means shown the best to carry out my invention,it is manifest that the various details of the same may be greatly modified without departing from my invention. I therefore do not desire to limit myself to these exact details; but

WVhat I claim, and desire to secure by Letters Patent, is-

1. In a warping-machine, the combination of a cut-marker adapted to move toward or away from the ends, an intermittingly-revolving shaft provided with a crank-wheel, and a pitman connecting the crank-wheel and the cut-marker, substantially as set forth.

2. In a warping-machine, the combination of an oscillatory cut-marker and an intermittingly-revolving shaft provided with a crankwheel, and a pitman for connecting the crankwheel with the cut-marker, substantially as set forth.

3. In a warping-machine, the combination of a crank-wheel and a cut-marker actuated by the crank-wheel, atrigger mounted loosely on a revolving shaft, a stop against which said trigger normally rests, a tripping device, and means between the trigger and the crankwheel whereby the revolution of the trigger when the same has been tripped will cause the crank-wheel ,to revolve substantially as I set forth.

4. In a warping-machine, the. combination of the following parts: a crank-wheel and a cut-marker actuated by a crank-wheel, a revolving shaft and a trigger mounted loosely thereon, a stop against which said trigger normally rests, a spring for forcing the trigger against the stop and forward along the shaft, an inclined tooth on the trigger and another inclined tooth upon the revolving shaft, and means between the trigger and crank-wheel whereby the revolution of the trigger when the same has been tripped will cause the crank-wheel to revolve, substantially as set forth.

5. In a warping-machine, the combination of the following parts: a crank-wheel and a cut-marker actuated by the crank-wheel, a revolving shaft and a trigger mounted loosely thereon, a stop against which said trigger normally rests, a spring for forcing the trigger against the stop and forward along the shaft, an inclined tooth upon the trigger and another inclined tooth upon the shaft, a spur-wheel forming part of the trigger, and another spur- I wheel fixed to the same shaft as the crankwheel, substantially as set forth.

6. In a warping-machine, the combination of the following parts: a crank-wheel and a cut-marker actuated by the crank-wheel, a revolving shaft and a trigger mounted loosely thereon, a stop against which said trigger normally rests, a tripping device, a pin upon the shaft and a jingle or bell actuated thereby, and means between the trigger and crankwheel whereby the revolution of the trigger when the same has been tripped will cause the crank-wheel to revolve, substantially as set forth.

7. In a warping-machine, the combination of a spring-belt shifter, a pivoted catch engaging the same and provided at the end of one arm with a tilting lever pivoted thereto, means for tilting said lever, and an oscillat-,

inglever located above said tilting lever, substantially as set forth.

8. In a warping-machine, the combination of a spring-actuated belt-shifter, a pivoted catch engaging the same and provided at the end of one arm with a tilting lever pivoted thereto, a sliding rod for tilting said lever, means for actuating the same, and an oscillating lever located above said tilting lever, substantially as set forth.

9. In a warping-machine, the combination of the following parts: a spring-actuated beltshifter, a pivoted catch engaging the same and provided with a tilting lever, a sliding rod for tilting said lever and means for actnating, the same, a pivoted lever above one arm of the tilting lever and near its end, an eccentric, and a spring for urging one arm of the pivoted lever against the eccentric, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

THOMAS A. DAVIS. Witnesses:

R. M. MILLER, J12, PAUL BIGELoW.

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