US1097942A - Bobbin-stripping apparatus. - Google Patents

Description

A. E. RHOADES. BOBBIN STRIPPING APPARATUS. APPLICATION FILED SEPT.17,1912. 1 097,942, Patented May 26, 1914.

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COLUMBIA PLANOGRAPH CO.,WASHINGTON,VD.C

A. E. RHOADES.

BOBBIN STRIPPING APPARATUS.

APPLIOATION FILED SEPT. 17,1912.

1,097,942Q Patented May 26,1914.

2 SHEETS-SHEET 2;

ii EVAAAAAAM COLUMBIA PLANOGRAPB c0.. WASHINGTON, D4 c.

UNITED STATES PATENT OFFICE.

ALONZO E. RHOAIDES, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR T0 DRAPER COMPANY, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

BOBBIN-STRIPPING APPARATUS.

Specification of Letters Patent.

Patented May 26, 1914.

1 Application filed September 17, 1912. Serial No. 720,769.

To all whom it may concern Be it known that I, ALONZO E. RHoADEs, a citizen of the United States, and resident of Hopedale, county of Worcester, State of Massachusetts, have invented an Improvement in Bobbin-Stripping Apparatus, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention has for its object the production of apparatus for stripping the waste yarn from bobbins after they are removed from the loom shuttle and prior to thereturn of the bobbins to the spinning frames for the reception of fresh yarn masses.

Ordinarily there is some yarn left on the bobbin when it is removed from the shuttle, the amount depending upon various circumstances, and varying from a single layer to a number of layers, and in operating socalled feeler looms wherein the bobbins are changed prior to complete exhaustion of the yarn there is always some waste yarn left upon the bobbin when it is removed from the shuttle. Before the bobbins are returned to the spinning frames it is customary to remove or strip the waste therefrom, and various devices have been designed to accomplish the result desired without injury to the bobbin.

It is of great importance that the bobbin shall not be scored, out or otherwise marred when the waste is stripped therefrom, for if the bobbin is so injured the yarn subsequently laid thereupon will catch on the roughened surface of the bobbin and break during the weaving operation. So, too, it is important that the waste be stripped cleanly, for if some of it is left on the bobbin it must be cleared off by subsequent treatment, adding to the expense. In accordance with my present invention the bobbins to be stripped are placed manually in a carrier which is given a step by step movement, to thereby present the bobbins one by one in position to be stripped. lVhen a bobbin is so positioned a stripper is brought automatically into position to engage the waste yarn and to push the same longitudinally thereof in the direction of the bobbin tip, the diminishing diameter of the bobbin toward its tip permitting the annular mass of waste to hang loosely as it approaches the tip.

While the active stroke of the stripper might be made long enough to clear the loosened waste from the bobbin I have found it preferable in practice to utilize the stripper for loosening up the waste, and thereafter to advance the bobbin with such loosened waste one step. Such advance brings the parts into position for a clearer to act upon the loosened waste and clear the same from the bobbin, which latter is subsequently released from the carrier and conveyed to a suitable receptacle.

The apparatus is automatic in operation, and the duty of the attendant is confined to placing the bobbins to be stripped in the intermittingly moving carrier.

Inasmuch as the stripper has a definite path of movement on its stripping stroke, having a fixed relation to the longitudinal aXis of the bobbin to be stripped, it is important that the bobbins should be placed properly in the carrier. Accordingly, I have provided a stop-motion for the apparatus so constructed and arranged that if a bobbin approaching stripping position is mis-p ositioned in the carrier the stop-motion will be called into action automatically and the apparatus will be stopped before the mis-positioned bobbin reaches the field of action of the stripper.

These and other novel features of my invention will be fully described in the subjoined specification and particularly pointed out in the following claims.

Figure 1 is a front elevation of a bobbin stripping apparatus embodying my invention, the carrier being partly brokenout to avoid confusion, and the stripper is shown as just having began its active stroke to strip the waste; Fig. 2 is a left hand end view and part section of the apparatus, the

section being taken 011 the line 2-2, Fig. 1,

looking toward the right; Fig. 3 is a top plan view of the apparatus with the parts in the position shown in Fig. 1, but the bobbins are omitted and also the movable members of the bobbin-holding devices on the carrier, to make the illustration clearer; Fig. 4 is a transverse sectional detail on the line 4E4, Fig. 1, behind the carrier, to show'a part of the mechanism for effecting the step by step or feed movement of the carrier; Fig. 5 is a view of the tip support for the bobbins and the guide chute for the cleared waste, looking at Fig. 1 from the left; Fig. 6 is a detail in side elevation of a portion of the stopmotion, detached; Fig. 7 is a right hand end elevation, viewing Fig. 1, of the guide for the reciprocating carriage on which the stripper and clearer are mounted, and the friction detent, to be referred to.

The workingparts of the apparatusare mounted on a flat and substantially rectangular base 1 supported at a suitable height on legs 2, Fig. 1, an upright bracket 3 on the base having an elongated, transverse bearing 4 for the main driving shaft 5, provided at its outer end with fast and loose pulleys 6, 7, the inner end of the shaft having a rigidly attached disk 8 provided with a wrist-pin 9. The bracket 3 has fixedly secured to it laterally extended guide rods 10, 11, one above the other, the rod 10 having slidably mounted upon it the hub 12, Fig. 2, of a belt fork 13, by means of which the driving belt (not shown) is shifted from one to the other pulley, and in the drawing the fork is shown positioning the belt for the fast pulley 6. A. forked arm 14, Figs. 1 and 2, is rigidly attached to and depends from the hub 12 and ernbraces the lower guide rod 11, to prevent any rotative movement of said hub and the belt fork on the main guide rod 10, as will be apparent.

Referring to Fig. 3 brackets having alined bearings 15, 16 are fixed on the base, said bearings supporting a horizontal shipper shaft 17 extended endwise of the base, the shaft having at the left hand end, Fig. 3, adjacent bearing 16, a shipper 18 fixedly secured to it within convenient reach of the operator, who in practice stands facing the apparatus shown in Fig. 1, opposite the bobbin carrier, to be described. An extension 19 on the hub 12 has a pin 20 which enters a slot 21, see dotted lines Fig. 2, in the upper end of an arm 22 fast on the shipper shaft 17, whereby rocking of the latter will move the belt fork 13 in or out to shift the driving belt as desired. The shipper shaft is shown herein as surrounded by a coiled. spring 23 fastened at one end to the bearing 16 and at its other end secured to a collar 24 fixed on the said shaft, the spring normally acting to turn the shaft to stopping position. T his action is prevented when the apparatus is running by means to be described, the stop-motion so far as described being of convenient construction but not in itself having distinctively novel characteristics.

Upright brackets 25, 26 bolted securely to the base 1 adjacent the front side thereof have alined bos es 27, 28 respectively in which is fixedly mounted a horizontal shaft 29 projecting beyond the left hand end of the base, the boss 27 receiving a shouldered non-rotating sleeve 30, see dotted lines Fig.

1, through which the shaft extends, said shaft being a short distance above the base 1.

The said sleeve fits tightly in the boss and projects beyond it, and upon the projecting portion of the sleeve is mounted the rocking hub 31 of a pawl-carrier 32, see Fig. 4, in which the hub is shown in full lines, the pawl-carrier having a pin 33 on which is pivoted a feed-pawl 34 held by a spring 35 in operative engagement with a ratchet 36. Said pawl-carrier has a stud 3?, to be again referred to, by means of which connection is had with the mechanism for oscillating the pawl-carrier, and this mechanism will be described after the stripping mechanism has been described hereinafter.

In practice the ratchet 36 is secured to the nth 38 of the bobbin carrier, which is herein shown as a circular disk 39 provided with bobbin holding devices and mounted to rotate on the shaft 29 intermittingly in unison with the step by step rotation of the ratchet, which latter is actuated by the feed-pawl 34, as will be manifest. The outer side or face of the carrier 39 has a circularly arranged series of pairs of jaws thereon, each pair comprising a fixed jaw 40 (conveniently made as an integral part of the disk casting) and a cooperating movable jaw 41 having a hub pivoted on a stud 42 fixed on the disk, see Fig. 2. The opposed faces of each pair of jaws is suitably concaved to fit the base or butt 43 of the bobbin, the waste yarn to be stripped therefrom, indicated at 44, Fig. 1, being wound upon the barrel 45 of the bobbin.

In Fig. 1 I have shown only one of the jaws 40, and only one of the jaws 41, to avoid confusion, and in Fig. 3 all of the. movable jaws 41 are omitted, for the same reason. Each movable jaw 41 has fixedly attached to it one end of a leaf spring 46, the free end thereof being extended inwardly from the jaw 'hub and arranged to rest upon the edge of a controlling cam 47 This cam is clearly shown in Fig. 2, and it rests against the outer face of the carrier disk 39, maintaining the latter in proper posit-ion on the fixed shaft 29, said cam having a stepped hub 48, 49, the smaller part 49 being fixedly secured on the shaft 29 by a set screw 50, so that the angular position of the cam may be adjusted.

Referring to Fig. 2 it will be seen that the high part of the jaw-closing cam is so positioned that the holding jaws immediately above the shaft 29 will be held closed, likewise the next pair to the left, but the springs of the movable aws 41 beyond hang clear, so that there is no pressure exerted upon such aws. The step by step advance of the bobbin carrier in the direction of the arrow, Fig. 2, will, however, bring the springs 46 one after another into engagement with the cam at its low point, and as the carrier advances said springs ride upon the gradually rising edge of the cam, so

that the movable jaws are held yieldingly in position to engage the butts of the bobbins. The attendant places the bobbins in the carrier by inserting the butts thereof between the pairs of jaws, the axes of the bobbin being held at right angles to the carrier disk 39, as in Fig. 1. The tips of the bob bins are supported by and slide upon a segmental tip support 51, having a flange 52 to serve as an abutment or stop against outward longitudinal movement of a bobbin, particularly when; the stripper is acting upon the waste. Said tip support has a hub 53 mounted on the shaft 29 and held fixed thereon by a suitable set screw 54, and the support is so positioned that after a bobbin is stripped the next feed movement of the carrier will remove the tip of such bobbin from the support 51. This relative position of the parts is clearly shown in Fig. 3. An auxiliary bobbin rest 55 is provided to sustain the bobbin which has been acted upon by the stripper while the clearer is in action, said rest 55 being located just beyond the end of the tip support but much nearer the disk 29, so that the rest engages the barrel of the bobbin back of the loosened waste While the same is cleared therefrom. Said rest 55 is adjustable longitudinally of a radial arm 56 forming part of a collar 57 mounted on the larger part 48 of the cam hub and held fixed thereon by a set screw 58, the rest being held in radially adjusted position by a slot and bolt connection at 59.

From the foregoing description it will be understood that the bobbins inserted manually in the carrier are moved forward step by step so that each bobbin is brought into stripping position immediately over the shaft 29, the tip of such bobbin resting on the tip support 51, and the next advance of the carrier moves such bobbin to clearing position, with its barrel upon the rest 55.

The last two bobbins in Fig. 2 are shown in stripping and clearing position, respectively, the endmost bobbin being in the latter position. After a bobbin is cleared the spring 46 of the cotiperating jaw 41 leaves the cam 47, so that as the carrier continues its advance the bobbins will drop from the opened jaws into a suitable box or other receptacle, not shown.

The mechanism for removing the waste will now be described. The brackets 25, 26 heretofore referred to, have laterally extended, flat heads, upon which is bolted an elongated horizontal casting 60 having a longitudinal guideway 61, preferably rectangular in cross-section, for the reception of a correspondingly shaped long slide-bar or carriage 62, plates 63 fixed on the casting 6O overlapping the top of the carriage and retaining it in the guideway. Near its forward end the carriage has a rigid, upright car 64 in which is fixedly mounted a transverse fulcrum rod 65, projecting beyond said car at each side, and on the front end of the red the hub of a short rocker arm 66 is mounted, said arm being pivotally connected with a transmitting member, shown as a bell- crank 67, 68 fulcrumed at 69 on an ear on the bearing 27. The short arm 68 of the bell-crank is slotted, Fig. 1, to receive the stud 37 on the pawl-carrier 32, previously referred to. hen the carriage 62 moves to the right, or is retracted, Figs. 1 and 3, the bell-crank is rocked and the arm 68 is elevated, to effect the active or feed stroke of the feed-pawl 34 and through the ratchet 36 the bobbin carrier is advanced one step. When the carriage moves to the left, Figs. 1 and 3, the bell-crank is rocked to swing the pawl-carrier 32 downward, Fig. 4, and thereby the feed-pawl is retracted and set in readiness for the next feed stroke.

The fulcrum rod 65 at the rear side of the ear 64 has mounted upon it the hubi'TO of a long arm 71 which projects over the carrier disk 39 and beyond it, and is downturned and notched at 72, to straddle the barrel of a bobbin, and preferably a thin, similarly notched plate 73 is fixed upon'said downturned end, as shown in Figs. 1, 2 and 3. This plate is arranged to drop upon the top of the barrel of the bobbin which is in position to be stripped, back of the waste 44, and when the carriage 62 moves out ward the plate 7 3 acts as a stripper to push or strip the, waste longitudinally along the bobbin toward the tip thereof. As the diameter of the bobbin decreases toward its tip the stripper thus operates to loosen the annular mass of waste as it is moved out ward. The stripper moves in a fixed path after it engages the waste, for a lateral flange 74 on the stripper arm '71 rests upon and slides along the top of one of the retaining plates 63, as shown in Fig. 1. The stripper arm has bosses 75, 7 6 thereon, the latter being located above and to the left of the fulcrum rod 65, Fig. 1, and having a lateral stud 77 pivotally connected by a pitman 78 with the wrist-pin 9, whereby rotary motion of the disk 8 is converted into rectilinear motion to effect reciprocation of the carriage 62. Said disk 8 is rotated in the direction of the arrow, Fig. 1, and owing to the eccentricity of the stud 77 with re lation to the fulcrum rod 65 the stripper arm 71 tends to be depressed on the active or stripping stroke of the carriage 62, which tendency is resisted by the stop flange 74 coiiperating with the plate 63, before referred to.

lVhen the stripping stroke of the carriage is completed and the movement of the carriage is to be reversed the pull exerted through the pit-man 78 is applied above the fulcrum rod 65, and the stripper arm and stripper 73 are first swung upward out of the path of the next bobbin to be stripped as it is fed by the bobbin carrier into stripping position. Such elevation of the stripper arm and stripper is limited by a stop arm 79 fixed on the hub and extended therefrom oppositely to the stripper arm and having its tip 80 adapted to engage the top of the carriage 02. As soon as the tip 80 engages the carriage the latter is retracted by the pull of the pitman, the stripper 73 remaining elevated until the retractive stroke is completed.

In order to retard the free movement of the carriage at each end of its stroke, to give time for and insure the alternate elevation and lowering of the stripper I have provided a friction detent, which consists of a friction pad 81 of leather or other suitable material, Fig. 7, secured to the end of an arm 82 and bearing upon the top of the carriage. Said arm is transverse to and overhangs the carriage, its front end resting on a shelf 83 of the bracket 26 and being positioned thereon by a pin 84 fixed in the shelf and extended through a slot 85 in the arm. The friction exerted is regulated by an adjusting screw 86 passed through the arm 82 and screwed into the shelf, a check nut 87 maintaining the adjustment. It will be remembered that when the carriage completes its retracting stroke the stripper 73 is elevated, and it is then above the next bobbin to be stripped, and just forward of the butt of such bobbin. Consequently, when the pitman 78 passes dead center and exerts a pushing force on the stud T7 the stripper arm is immediately depressed, for the friction detent just described holds the carriage fro-m movement, and such depression of the stripper arm positions the stripper 73 to engage and strip the waste as the stripping stroke of the carriage begins, which is simultaneous with the engagement of the flange 74; and plate 03. The stripper acts upon the waste while the tip of the bobbin is resting upon the tip support 51, it having been stated hereinbefore that the waste after being loosened by the stripper is removed by a clearer, and the latter acts upon the waste on one bobbin while the stripper is acting to loosen the waste on another. The boss 7 5 on the stripper arm carries a stud 88 on which is mounted the long hub 89 of an arm 90 prolonged beyond the stripper and at the rear thereof, Fig. 3, said arm being downturned and notched or bifurcated at 91 to form a waste clearer, the operative position of the clearer being fixed by a lateral lug 92 on the arm 90, and resting on the top of the stripper arm 71.

It will be obvious that the stripper and clearer reciprocate in unison, and rise and fall together, the relative position of said members enabling them to act upon two bobbins, the clearer, however, moving into operative position at a point beyond the bobbin rest 55. As the bobbin on which the waste has been loosened is free and unsupported at its tip the outward stroke of the clearer removes the annulus of waste completely from the bobbin, the cleared waste dropping onto a guide chute or deflector 93 and being guided thereby to a suitable receptacle. Said deflector or chute is set diag'onally, Fig. 1, with relation to the shaft 29, and has an oflset, slotted wing 9st which is apertured for the shaft and straddles the upright edge of the casting which has the segmental tip support 51, to which casting it is secured by a bolt 95.

The operation of the various mechanisms having been described no further detailed description of the operation of the apparatus as a whole is necessary.

WVheh the shipper 18 is moved to running position, Figs. 2 and 3, a pin 96 thereon rides along a cam 97 and in front of a shoulder 98 on a detent 99, shown separately in Fig. 6, extended transversely of the base 1 and fixedly secured to the inner end of a rock shaft 100, mounted in bearings 101 formed as a part of the casing 60. A spring 102 coiled about the rock shaft is fixed at one end to one of said bearings and at its other end to a collar 103 fast on the rock shaft, the spring tending to lift the free end of the detent and maintain the shoulder 98 and pin 96 in engagement. If the detent is depressed to disengage said pin and shoulder the spring 23 immediately acts through the shipper shaft 17 to shift the driving belt to the loose pulley, and as it is very important to prevent improperly placed bobbins in the carrier from being brought to the stripping point I have provided a shipper release controlled by a mis-positi'oned bobbin. Accordingly the outer end of the shaft 100 has secured rigidly to it a releasing arm 10% provided with a convex shoe 105 which normally is positioned as shown, overhanging the path of movement of the butts of the bobbins in the carrier as such bobbins approach the stripping position, said shoe just permitting a properly gripped butt to pass under it. If the attendant has been careless and has placed a bobbin in the carrier with its butt sticking out beyond the periphery of the disk 39 such butt will engage and lift the shoe 105, thereby rocking the shaft 100 against the spring 102 and depressing the detent 99 to release the shipper 18 and thereby effect stoppage automatically of the apparatus. Such stoppage is effected before the nus-positioned bobbin can come into stripping position, as will be clear from Fig. 2.

To prevent over-running of the bobbin carrier any suitable means may be employed, and herein I have shown a spring-metal friction detent 106 bearing against the periphery of the disk 39, said detent being suitably secured to the base 1 by screws 107, Fig. 2.

' lVhile I have described herein one practical embodiment of my invention various changes or modifications in details of construction and arrangement may be made by those skilled in the art without departing from the spirit and scope of the invention as set forth in the claims herumto annexed.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In apparatus of the class described, a carrier to receive and hold in parallelism to its axis a series of bobbins to be stripped, means to effect intermittent movement of the carrier to present the bobbins one by one into position to be stripped, stripping means movable axially of a bobbin so positioned, to engage the waste thereon and push it off over the tip, and mechanism to effect the operation of said stripping means.

2. In apparatus of the class described, an intermittingly movable carrier, a series of devices thereon to engage detachably and hold the butts of a plurality of bobbins, means to maintain said devices in operative condition as they approach a predetermined point and thereafter to render them inoperative, means to effect step by step feed of the carrier and thereby present the bobbins singly to stripping position, an abutment to prevent longitudinal movement of a bobbin in such position, and means to act upon and strip the waste from a bobbin so held.

3. In apparatus of the class described, an intermittingly movable carrier provided with a series of pairs of jaws to grasp and hold the butts of the bobbins to be stripped, a stripper, means to bring it into engagement with the waste on the bobbin and move such waste toward the tip of the bobbin, an abutment to prevent axial movement of the bobbin during the stripping operation, means to effect feed movement of the carrier in alternation with the operation of the stripper, and means to open and close the pairs of jaws automatically.

t. In apparatus of the class described, mechanism to engage the waste and strip it from the bobbin and a carrier to present the bobbins one by one into position to be stripped, said carrier comprising an intermittingly rotated disk having a series of circularly arranged fixed jaws on the face thereof, and a cooperating series of movable, yielding jaws, each pair of jaws acting when closed to grasp and yieldingly hold the butt of a bobbin, combined with means contacting with the yielding jaws and adapted to move the yielding jaws into closing position as they are carried toward stripping position, to retain each pair of jaws closed yieldingly upon the butt of the bobbin until stripping position is past, and then to release the yielding jaws after stripping position is past to allow of the discharge of the empty bobbin.

In apparatus of the class described, a carrier having a series of jaws to grasp the butts of the bobbins to be stripped, and hold the said bobbins in substantial parallelism, means to move the carrier intermittingly and thereby present the bobbins one by one to stripping position, means reciprocated longitudinally of a bobbin so positioned, to engage the waste thereon and move it toward the tip, and an instrumentality to lift said means on its retractive stroke out of the path of the bobbin next to be stripped.

6. In apparatus of the class described, a carrier provided with means to receive and hold the butts of a series of bobbins to be stripped, means to effect step by step feed of the carrier, a carriage reciprocated in parallelism with the axes of the bobbins in the carrier, stripping and clearing members operatively connected and mounted on the carriage, to strip and clear, respectively, the waste as the bobbins are positioned by the carrier, and means to elevate said members above the feed path of the bobbins on each retractive stroke of the carriage.

7. In apparatus of the class described, a

carrier, a series of holders on the face there of each comprising a fixed jaw and a yielding cooperating aw, to grasp yieldingly the butts of the bobbins to be stripped, means to move the carrier intermittingly, a jawclosing device contacting with the yielding jaws and adapted to move the yielding jaws into closing position as the jaws are carried toward stripping position to retain each pair of jaws yieldingly closed upon the butt of the bobbin during a predetermined length of travel and until stripping position is past, and then to release the yielding jaws after stripping position is past to allow of the discharge of the empty bobbin, and stripping mechanism acting upon the waste on a bobbin in stripping position, said mechanism acting while the carrier is at rest and when the corresponding yielding jaw is held in yieldingly closed position.

8. In apparatus of the class described, a rotatable carrier means thereon to engage and support a circularly arranged series of bobbins, means to effect feed of the carrier step by step, stripping mechanism to engage and remove the waste from the bobbins as they are fed one by one into stripping position,'and mechanismto efl'ect stoppage of the apparatus automatically by or through a bobbin nus-positioned in the carrier.

9. In apparatus of the class described, a fixed, horizontal guideway, a carriage slidable therein, a stripper arm fulcrumed on the carriage and having a waste stripper at its free end, and means, including a pitman connected with said arm above and beyond its fulcrum, to reciprocate the carriage,combined with a detent to retard the movement of thecarriage, whereby the stripper arm will be lifted prior to the beginning of one stroke, and depressed prior to the beginning of theopposite stroke, of the carriage, an devices to limit such pivotal movements of the stripper arm, the latter moving as a unit with the carriage during the major part of each stroke.

10. In apparatus of the class described, a carriage reciprocated in a fixed path, a stripper and a clearer fulcrumed thereon, the one offset laterally from the other, means to elevate and depress alternately both said stripper and clearer prior to the beginning of successive strokes of the carriage, a friction detent to retard the movement of the carriage, and stops to limit the pivotal movements of the stripper and clearer relatively to the carriage, combined with means to present a bobbin to the action of thestripper and then tothe action of the clearer, the waste being thereby loosened, and removed from the bobbin, respectively.

11. In apparatus of the class described, a rotatable carrier: tohold a series of bobbins in parallelism with its axis, means to rotatethe carrier step by step, mechanism, including stripping and clearing members, to act upon the waste on a bobbin, the stripper loosening the waste on one bobbin and moving it toward the tip while the clearer acts concurrently on the previously loosened waste on another bobbin and clears it therefrom, a tip support for the bobbin in strippingposition, and a rest for the bobbin in clearing position, said rest engaging the bobbin between its butt andthe previously loosened waste.

12. In apparatus of the class described, a rotatable carrier to hold a series of bobbins in parallelism with its axis, means to rotate the carrier step by step, connected and lat orally offset stripping and clearing members, to act concurrently upon two bobbins in the carrier and strip the Waste on the and clear the previously stripped waste from't-he other, means to reciprocate said members in unison longitudinally of the bobbins, and means 'to cause said members i to move laterally away from the bobbins at the end of one active stroke and to return to operative position at the beginning of the next active stroke.

13. In apparatus of the class described, stripping mechanism, including a reciproeating carriage and a rotatable shaft operatively connected therewith, fast and loose pulleys for the shaft, a belt-shifter, a shipper connected therewith and moved to stopping position by a spring, a detent to retain the shipper in runningposition, a rotatable carrier to support a series of bobbins and present them to the stripping. mechanism, and a shipper releasing device acting through the detent and brought into operation by a bobbin mis-posit-ioned in the carmen In testimony whereof, I have signed my name to this specification inthe presence of two subscribing witnesses.

ALONZ'O E. RHOADES. Witnesses ROBERT JAMIESON, E. D. Oseoon.

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

It is hereby certified that in Letters Patent No. 1,097 ,942, granted May 26, 1914, upon the application of Alonzo E. Rhoades, of Hopedale, Massachusetts, for an improvement in Bobbin-Stripping Apparatus, an error appears in the printed specification requiring correction as follows: Page 6, line 47, third occurrence, for the article the read one; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 16th day of June, A. D., 1914.

[SEAL] J. T. NEWTON,

Acting Commissioner of Patents.

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