US1970188A - Winding machine with mechanical charging of bobbins - Google Patents

Description

Aug-14, 1934. w. RINERs nu. 1,970,188

wINDING MACHINE WITH MECHANICAL CHARGING 0F BoBBINs Filed sept. 14, 1932 v11 sheets-sheet 1 w RlNERs 'Er AL WINDING MACHINE WITH'MECHANICAL CHARGING 0F BOIBBINS 11 (Sheetssheer 2 Filed Sept. 14, 1932 Aug. 14, 1934. w RINERS ET AL 1,970,188 l I WINDING MACHINE' WITH MECHANICAL CHARGING yOF BBBINS Filed sept. 14,v 1932 11 Sheets-sheet 3 ,'Aug. 14, 1934. W. RINERSv ET AL 1,970,188

--WINDIC MACHINE WITH MECHANICAL CHARCING CF BCBBINS 11 shets-sheet 4 l Filed Sept. 14, 1932 Aug. 14, 1934. w. REINERS Er AL 1,970,188

WINDING MACHINE WITH MECHANICAL lCHRG'ING' OF BOBBINS Filed Sept. 14, 1932 11 Sheets-Sheet. 5

Aug. 14, 1934. w. REINE-Rs Er AL L v 1,970,188

Y WINbNG MACHINE WITH MECHANICAL' CHARGING OF BO-BBINS Filed sept. 14, 1932 11 sheets-sheet e Aug. 14, 1934. w.` REINERS Er AL 1,970,188

WINDING MACHINE WITHv MECHANICAL CHARGING OF BOBBINS Filed sept. 14, 1932 11 Sheets-sheet 7 Aug. 14, 1934. w RlNERs E-r AL 1,970,188

W'INDING MACHINE- WITH MECHANICAL CHARGING OF BOBBINS Filed Sept. 14. 1952 11 Sheets-Sheet 8 Aug. 1'4, 1934.

y w. RElNl-:Rs Erm.4 l 1,970,188

WINDING MACHINE WITH MECHANICAL CHARGING OF BOBBINS Filed sept. 14. 1932 .11 sheets-shea 9 fig. ZZ

l 3950514335 '3% )www ug. 14, 1934. w REINERs E-r AL 1,970,188

WINDING MACHINE WITH MECHANICAL CHARGING OF BOBBINS Filed Sept. 14. 1952 l1 Sheets-Spee?, 1 0

Aug. 14, 1934.' w, REINERS ErALv 1,970,188

I WINDING' MACHINE WITH MECHANIAL CHARG'ING OF BOBBINS Filed Sept. 14, 1932 y11 Sheets-Sheet 71l atented ug'. 14, 1934 UNITED sTAATss WINDING MACHINE 12 claims.

'I'his invention relates to certain modifications of our copending prior application Serial No. 516,443, filed February 17, 1931. In the invention described in the said prior application, the full bobbins to be unwound are first automatically brought up to the unwinding station by a travelling conveying device and are then automatically shifted over to. the unwinding station.

The invention described in the present application has for its objects the following modified forms of the invention of the said prior application:

l. The full bobbins are deposited from aconveyor upon individual stationary bobbin receivers in front of the unwinding stations, which receivers may be of trough or other shape, the bobbins being thenshted automatically or by mechanical means to the peg-shaped bobbin holders.

2,'A plurality of full bobbins are shifted onto the bobbin holders simultaneously and positively by means of a-comrnon shifter.

3. A plurality of full bobbins brought to the several unwinding stations by a travelling conare shifted by, means of a separate lifting device in combination with a common shifter acting simultaneously for a plurality of unwinding stations.

4. 'lhe full bobbins are deposited by means of a travelling magazine upon stationary rests in front of the several .bobbin stations, from which rests they may be individually shifted to the holders in succession by means of a ltravellingshifter or be shifted simultaneously by a common shifter.

5. The mechanical device by which the bobbins to advance the star-shaped peg holder one position on its return movement.

The drawings show various forms of embodiment of the invention.

Figs. 1 and 2 are respectively front and side elevations of a travelling bobbin magazine showing a holder for the bobbins.

Figs. 3, 4 and 5 are respectively a front elevation, a side elevation, and a plan view of a trav- ,elling conveyor in the form of an endless chain, showing bobbin holders associated therewith. i.

Fig. 6 shows a vertical section of one form of embodiment of a winding machine equipped with the devcesshown in Figs. 3, 4 and 5,

Fig. 'l is a side elevation of the winding machine shown in Fig. e.

Figs. 8 to 14 show a modified device with an endless conveyor chain and bobbin holders, Figs.

8, 10 and 12 to 14 being cross sections in various veyor in the form of a chain, a. belt, or the like,

are shifted from their rests onto the pegs is made.

v01E the holder 12.

PTENT OFFICE WITH MECHANICAL CHARGING 0F BOBBINS wilhelm Reiners l:ma Gustav nahmen, Mnich- Gladbach, Germany, assignors to W. Schlafhorst & Company, Munich-Gladbach, Germany .Application september 14, 1932, serial No. 833,196 In Germany October 10, 1931 positions of operation and Figs. 9 and 11 being side elevations in two positions,

Figs. 15, 16 and 1'1 are respectively a cross section, a side elevation, and a plan view of another form of machine having a conveyor in the form 60 of a travelling bobbin magazine and stationary bobbin rests beside the bobbin holders,

Figs. 18 to 20 are respectively a cross section, a side elevation and a plan view of a conveying device in the form of an endless chain, 'showing 65 bobbin holders and a special feeler mechanism for detecting bobbins not completely unwound,

Fig. 21 is a cross section of the same device modified for electrical operation,

Figs. 22 and 23 are respectively a cross section 70 and a partial side elevation of the end of a conveyor mechanism showing devices for automatic control of the various machine movements,

Figs. 24 and 25 show in vertical section and side elevation respectively a machine having a sta- 75 tionary trough to receive the bobbins to be mounted on the holder, with a swinging shifting devicefor shifting the bobbins onto the holder and advancing the holder one position on the return movement. so

Figs. 1 and 2-show, the first embodiment of the invention. In these figures 1 is a magazinev for the full bobbins, which travels along past the unwinding stations. 2 are the' full bobbins which` are urged toward a. star-shaped single feed de- -35 vice 4 by an inclined bottom 3 of the magazine. 'Ifhe magazine l is moved past the unwinding stations by means oi a screw spindle 5 driven by suitable means not shown and engaged by an internally threaded bush on the magazine. In 90 place of the screw spindle 5 there can, of course. be used a-chain, a belt, a rope, or any other suitable means for imparting motion to the magazine. The magazine 1 canbe guided by means of rollers riding upon tracks 7 and 8. 'The pe- 95 riodic advancement of the star-shaped single feed device 4 is accomplishedl by lugs 10 on a stationary rail 9, the single feed device being advanced one position for each unwinding sta.- tion. On the magazine 1 is a second inclined 100 plane or drop chute 11, upon which the bobbins 2 released from time to time by the feed device 4 can slide down. impelled by their own weight, to be pegged upon the ready standing empty peg Since the bobbin 2 is now 105 mounted upon its holder 12 it must be released from the holder 13 on the slide 11 as the magazine l continues to travel, .and for this purpose the holder 13 is constructed as a. spring flap. The bobbin holders 12 are made in the form of star- 110 rotate about an axis 14 and are held in their various positions by a retaining device. As in the prior application there is a deflector 15 on the travelling magazine 1, which takes care-of the advancement of the star-shaped bobbin holder 12 to itsfnext working position, the empty bobbin being removed from its holder at the same time by a stripper 16.

'Ihe form of machine described above provides for the transfer of the unwnding bobbins to'their holders simply by the Weight of the bobbins themselves, without the use of any positively acting shifter.

Figs. 3,4 and 5 show a second form of the machine. ment, the transfer of the bobbins takes place. not by their own weight, but by means of a shifter. This is similar to the aforesaid prior application, with the exception that in the present case the bobbins are not individually transferred, but a plurality of them together are pos- `itivelyrushed onto their holders by a common shifter. 'I'he operation is as follows:

' The obbins 2 are automatically extracted from a stationary magazine 57 (Figs. 6 and 7), preferably arranged at one end of the machine, by an endless conveyor chain 17 driven by shaft 300 and are automatically carried to the several unwinding stations. 'I'he bobbins Aare carried upon the conveyor chain on seats 60. As soon as bobbins have arrived at all the unwindlng stations to be served, the conveyor chain 17 automatically stops. Now the bobbins 2 are shoved by a stroke of the shifter 18 onto their holders 12a rotatably mounted upon Ashaft 14, the shifter serving a plurality of unwinding stations. Shifter 18 is mounted upon rods 19 slidably supported in bearings 20. 'I'he ends of rods 19 are toothed and mesh with segments 21 fixed upon a. rock-shaft 22. The rock-shaft 22 may be operated by' a hand lever, as indicated by dotted lines at 23 in Fig. 3. Between conveyor 17 and the holders 12a runs a channel bar 52 forming part of the frame of the fmachine. This channelbar supports guide plates 47 opposite each holder, which guide the bobbins yonto the holders. Upon conveyor chain 17 is mounted a deector 15a which engages the downwardly directed pegs of holders 12al as the conveyor travels along and advances each holder one peg division, moving the full bobbins into their upright unwinding positions. For better support the deflector 15a is guided by pulleys y53 and 54 running upon channel bar v52. In place of the manual control shown in Fig. 3, shifter 18 may be controlledV entirely mechanically and uninuenced by the will of the person operating the machine by means of the device shown in Figs. 22 and 23. -In `this case there is fixed upon the drive shaft 24 of the machine (Fig. 22) a worm 25, which drives a worm wheel 26 on shaft 27. On the shaft 27, which is rotatably mounted in the frame of the machine, there is fixed another toothed wheel 28. The latterv is in mesh4 with a clutch wheel 29 of shaft 300, the wheel 29 having itsk hub constructed as one clutch half. On the same shaft 300 is mounted a displaceable complementary clutch half 31, which is operated by a. two-armed lever 32 pivotally mounted at 33 on the frame of the machine and .engaging at its lower end the slidable half 34 of a second clutch. The shaft 300 is rotatably mounted in the frame of the machine at 55 and 56. The

Here, in contrast tothe first embodiclutch half 34 operated by the lower arm of Iever 32 engages in its complementary clutch half in the position shown in Fig. 22, the latter clutch half being formed on the hub of a toothed wheel 35. Toothed wheel 35 is rotatably mounted on Shaft V36, while'the two clutch halves 31 and 34 can only 'slide upon their respective shafts 300 and 36 and cannot rotate thereon. On the shaft 36, which is journalled in the machine frame at 37 and 38, is a drum 39 which has on its peripherya spiral. cam slot 40. In the slot engages a roller 4l mounted on a pin on lever 44, which is fastened upon shaft 22. The cam drum 39 derives its motion from shaft 27 through toothed wheelsj28," 29, 42 and 35. Upon shaft 300 there is also a sprocket wheel 43 which drives the endless conveyor chain 17. According to whether the clutch half 31 or 34 is engaged with its toothed wheel 29 or 35, either' the conveyor 17 or the shifter 18 will be operated. Both motions follow each other positively, therefore they can never take place simultaneously, whereby an absolutely certain operation of the transfer mechanism is assured. The automatic throwing in and out of the two operations is accomplished in the following manner:

On the upper end of clutch lever 32 is mounted a cam nose 45. On the deflector 15b, which serves for a plurality of bobbin holders 12ais a complementary nose 46. As soon as the deflector has operated the last bobbin holder 12a of the number of bobbin stations served by it, the nose 46 strikes the nose 45 of the clutch lever 32 and thereby brings this leverand the clutch half 31 I into the thrown out position shown in Fig. 22.

`Hereby the conveyor chain 17, which has been running up to this time, is brought to a standstill. However, at the same instant the clutch half. 34 at the lower end of the same lever 32 is thrown into itsv engaged position shown in Fig. 22 and thereby the cam drum 39 moves the shifter 18 toward the machine. The bobbins 2 standing ready upon the seats 60 of conveyor 17 are shoved in th'e'directionof the bobbin holders 12a and are finally automatically pegged upon them. On the way from the conveyor chain 17 to the bobbin holders 12a the' bobbins can be supported from below by stationary intermediate guide plates 47 whereby an accurate guiding of the bobbins 2 is assured, even though the conveyor chain 17 may wear and thereby require the insertion of enlarged parts.- By further travel of the cam drum 39, the shifter 18 is again brought into its starting position shown in Fig. 22. As soon as this is accomplished the lever 32, the lower end of which carries a nose 48 engaging in a concentric slot 49 in the face of the cam drum 39, is thrown out by the striking of nose 48 against a switching projection 50 in the slot 49 (Fig. 23) During this movementthe lower end of lever 32, which is provided with a wedgeshaped nose, slides over a spring bolt 51 slidably mounted on an arm of bearing 37. The motion of lever .32 caused by this operation serves to throw in .again the upper lclutch half 31 and thereby starts the conveyor chain 17 for the further automatic conveyance of another complement of full bobbins to their bobbin stations. In order to insure an accurate guiding and operation of the deflector 15 which, in 'this embodiment, is mounted on the conveyor chainl 17, the deflector is guided by rollers 53 and 54 travelling uponstationary channel bar 52 as described with reference to Figs. 3 and- 5. By the above described positive drive and the automatic control ofthe shift motions the operation of the machine is rendered independent of the person serving it; the periodic sequence of the operative procedures can be determined in advance, where-l by the'attainment of the highest possible output of the machine and worker is achieved.

In Figs. 6 and 7 the second described embodiment of the invention is shown on a cross winding machine. The drive for the automatic operation of conveyor chain 17 and shifter 18 is omitted from both ngures, since it can be fully understood from Figs. 22 and 23. l v

AAscan be seen from Fig.' 'l there, are mounted on the' conveyor chain 17 two deflectors 15a for advancing the bobbin holders 12a,. for the chain in this case is designed fortwo shifts.

InFig. 'i is further shown the manner in which the full bobbins 2 are extracted from the stationary magazines 57. For this purpose the conveyor chains 17 can be provided at each unwinding station with projections or lugs 58. Each lug releases a lever 59 on the stationary magazine 57, which thereby releases a bobbin 2 from its locked position in the stationary magazine and letsY it fall upon the corresponding support 60 of the conveyor chain 17. v

In short machines these collectormagazines 5'? may, in certain cases, be dispensed with, thel bobbins then being laid upon the conveyors by hand at the head of the machine or at any other suitable place. f

Figs. 8 to 14 show the third embodimentfof the invention Here the full bobbins 2 are likey wise taken by the endlesschainl'a from a stationary magazine (such as 57 of Fig. "l) at the end of the machine and conveyed to the several "305 bobbins from the bearings 60a on chain 17a and unwinding stations, the bobbins beingv carried in rests 60a. In contrast to the second embodiment described the conveyor chain 17a is here mounted low. Now in order to bringthe full-bobbins 2 to the position shown in Fig. l for the purpose of shifting them to the holder 12a, the shifter 18a and another rail 61, operate together asa lifting device for the bobbin 2. yFor this purpose bobbin rests 62 `are provided on the shifter 18a, While recesses63 in the railv 6l serve as seats. For llifting the shifter 18a and the rail 61 into the transfer position shown in Figs .`10, 11 and 12, there are fastened yupon the operating rods 19a of shifter 18 special segment levers 64, for the operation of which theoperating rods 19a are rotatably mounted at 20a. l'I'he segments 64 are linked together by means of a link 65 connectedat 66; Nowif a pull is exertedvv in the direction of arrow a, either by hand or mechanically, the segments 64 are turned to the position shown. in Figs. 10, 11 and 12. l' Since the shifter 18a and the rail- 61 are connected together by a common frame 67,.the shifter and rail are raised together, whereby they raise ,all the full bring them to the transfer position (Fig. 12), in the same way 'as has already been described in connection wtih the second embodiment lof the .--invention. Fig. 13 shows the b'obbin raising and shifting device lowered again from the transfer level, and Fig. 14. shows them moved forward vagain into the starting position shown in Fig. 8.

the fultbobbins magazine 1e, as

In this case also, all the motions of the bobbin conveying mechanism can vfollow insequence mechanically andautomatically, in the manner describedin connection with `Figs; 22 and 23. V

InFigs'. 15 to 1'7.: isshown another embodiment of the invention'. Here the conveying device for in the rstembodiment, but here not unwound on account of breakage.

90 is mounted onya krigid. holder 93, which in turn isin the form of a travelling the full bobbins 2 fall directly upon stationary rests 84 in front of the unwinding stationsea'ch rest holding its bobbin coaxial with the extended axis of the peg of the bobbin holder 12a. which is to receive the bobbin. After the travelling magazine le has reached the end of its track and has deposited all of the full bobbins and has returned to starting position, the bobbins can be shoved onto the pegs of the bobbin holders either individually in sequence by a travelling shifter, as in the aforesaid prior application, or, as shown in Figs. l and 16, a plurality of bobbins can be positively pushed onto the bobbin holders by a shifter 18e. As shown in these figures the rest 84 is fastened upon the shifter 18e and moves therewith. The shifter can be operated in the manner which has already been described before by means. of an actuating device 19e, 21e controlled by shaft 22. 'Ihe operation and construction of the magazine le can be substantially the same as in the first embodiment of the invention. The newly pegged bobbins remain in horizontal posi- 'tion while the previous batch of bobbinsis being unwound, when the magazine begins another trip and a defiector e mounted upon the front-of the magazine advances the holders( to bring the pegged bobbins to unwinding position,l and to bring new pegs to receiving position. l .l

From the embodiments described above it will be seen that the shifter i8 for-charging a` plurality of unwinding stations simultaneously, or theyarious forms of devices for chuting the bobbins doWnunder. their own weight, receive the full. bobbins either directly from the travelling `conveyor,v or indirectly from stationary rests, to

which the bobbins are conveyed by a travelling bobbin magazine. y

Rigs. 18 to 21 show one form of an auxiliary device which has the lpurpose of preventing a charging 'and discharging of bobbn holdersin which ythere; are remnants of,yarn not yet unwoundfgiasgpccurs when the .yarn breaks; @11.3 object beingto permit this remnant to be cornpletely-unwound along with the others when the yarns of the next set of bobbins have been knotted to those onv the winding packages. This inventive thought is utilized in the illustrative embodiment shown in Figs. 18 to 21 inthe following manner. l

9D is afeeler which can swing about a pinf9l, when, as it travels along the unwinding stations its nose 92 strikes against a remnant of yarn The feeler is secured toa special'endless conveyor chain 75g, the feeler beingycarried along by thisV conveyor chain past the unwinding stations. On the rigidi holder 9 3 is also pivoted the defiector 15g for the bobbin holders 12a,'similar tothe one repeatedly referred to herebefore., The feeler 9011s in the form of a bell crank lever, the short arm 94 of which is articulated to a pull rod 95. The latter engages at its other end the deflector 1592 Now if the travelling feeler 90. as it moves past. the unwinding stations, is' thrown out of the position shown in dotted lines in Fig. into the position shown infull lines, on account of striking aremnant of yarn, the deflector 15g is simultaneously brought into the position shown in full lines in Fig. 20 through the action of the'short arm 94 and the pullv rod 95. In this latter position it cannot engage behind. the lower empty peg of holder 12a, therefore an advancement of `the holder is prevented, the remnant of` yarn remaining lin operative position on` the holder to rod 100, the other end of which is articulated to a bell crank lever 101.

The latten lever is pivotaly mounted on the lstationary magazine 57g and its other arm serves to throw in and out a clutch 102. The clutch 102 is mounted directly on shaft 103 of the star-shaped feeder 104 for the bobbins. 'I'he distributor is yieldably held in its several positions of rest by a locking wheel 105 cooperating with a spring locking nose 106. If the feeler 90 swings out, under the influence of a remnant of yarn, then in the mannerdescribed above the clutch of the bobbin feeder is disengaged and no new bobbin is left for that station. Only when the feeler 90 has left the yarn remnant of that unwinding station as the conveyor moves on is the` clutch 102 again automatically thrown in and the further charging of the device with thenew bobbins continued. Theconveyor chain 17a'and shifter; 18a, and rail 61 may be of the same type as shown in Figs. 10 to 14. In Fig. 21 is shown how, instead of the mechanical interruption of the delivery of bobbins in case the feeler 90 strikes a remnant of yarn, an electro-magnetic interruption can be provided. This may be done, for example, by replacing the oscillating shaft 98 with a stationary contact bar 107, arranged so that in case ofa depression of the lever 97a when the feeler strikes a remnant of yarn the opposite end of lever 97a strikes upon a second conductor 108, closing the circuit and causing the actuation of bell crank lever ,101 by electro-magnet 109, so that for the corresponding bobbin rest of the conveyor the delivery of a new bobbin is interrupted.

The shifter may also take the form shown in Figs. 24 and 25. It consists of a swinging bell crank lever 222, 223 at ea'ch unwinding station, which may be mounted under the trough or rest 224 upon which the bobbin 2 is deposited by the magazine-225. The bell crank levers of a -group of unwinding stations, or of all unwinding stations on one side of the machine, may be mounted upon a common shaft 226. The free end of the arm 222 of the bell crank lever lies directly in front of the bobbinv 2 on rest 224 which is to be` shifted onto the bobbin holder. The motion of the bell crank lever for shifting the bobbin onto the peg 24a of the holder which stands 1in front of it may be imparted by`a deiiector on theV conveyor ofthe kind shown in the aforesaid copending application; The charging motion of the bell crank lever'may, however, be imparted` by means ofa pedal device consisting, for example, of la rod 227 slidably mounted for vertical reciprocationV in bearings 228, provided with a pedal A229, and normally held in operative position by a counter-weight or a spring 230. The rod 107 has a pin 231 which engages in a elongated hole in arm 223 of the'bell crank lever, the said arm carrying at its end alaterally yieldable spring switching pawl 232. Upon the return motion` of the pedal 'device initiated by yspring r230,'the bell crank lever is moved back simultaneously. the switchlng'pawl engaging under the downwardly directed peg and turning the holder so that the mounted bobbin 2 moves to the unwinding position and the empty tube 2a is stripped off by the stripper 30.

' Having described our invention, we claim:-

1. In a deviceof the class described, a plurality of supply holders, means for distributing a plurality of bobbins respectively opposite said holders, and means tov engage said distributed bobbins to shift them onto said holders. 2. In a device of the class described, a plurality of supply holders, means for distributing a pluralityfof bobbins respectively opposite said holders, and a common shifting device adapted to engage said bobbinsgand move them simultaneously onto said holders.

3. In a device of the class described, a plurality of supply holders, a plurality of bobbin rests respectively positioned opposite said holders and each adapted to receive a full bobbin, and a common shifting device for the bobbins on said rests, said shifting device `having an upward motion to raise the bobbins from said rests'anda transverse motion to push the bobbins onto said holders.

4. In a device of the class described, a plurality of supply holders, a plurality of bobbin rests each having a substantially fixed location opposite one of said holders, means for automatically depositing a full bobbin in each of said rests, and means for shifting'thebobbins from said rests onto said holders.

5. A device as described in claim 1, in combination with a feeler mechanism for detecting incompletely unwound bobbins, said feeler mechanism being adapted to prevent the charging with a. new bobbin of bobbin holders bearing incompletely unwound bobbins. y

-6. A device as described in claim 1, in combination with a sing-le `traveling feeler mechanism for detecting incompletely unwound bobbins, said feeler mechanism being adapted to prevent the charging with a new bobbin of bobbin holders bearing incompletely unwound bobbins.

7. In a device of the class-described, a plurality of supply holders, a plurality of rests for supporting full bobbins in preparatory positions opposite said holders, means for depositing individual full bobbins in said rests, feeler mechanism for detecting incompletely unwound bobbins on said holders, said mechanism beingadapted to prevent the deposit of a bobbin on any of said rests opposite a bobbin holder having an incompletely unwound bobbin, and means for shifting bobbins from said rests onto said holders.

8. In a device o1' the ,class described, 4a plurality of supply holders, ,means for distributing full bobbins to preparatory positions opposite said holders, means for shifting said `bobbins from said preparatory positions 'onto said holders, driving mechanism for said distributing and shifting means, and a switching device for causing alter- Ying mechanism for. saiddistributing and shiftving means, and aswitching device for causing alternate operation of said distributing and shifting means by said Vdriving mechanism, said switching device being further adapted to move said holders from receiving to unwinding position.

10. In a device of the class described, a plurality of supply holders, for supporting bobbins to be unwound, said holders being movable from un- Winding position to bobbin receiving position and from bobbin receiving position to unwinding po- CERHICATE Patent No. 1, 970, 188.

preparatory position opposite said holder in its 'receiving position, a shifter in the form of a piv- 'oted lever adapted to engage bobbins in said preparatory position and push them onto said holder, and means operable by said shifter on its return stroke for moving said bobbin holder from receiving to unwindin'g position.

12. In a device of the class described, a. plurality of supply holders, a conveyor chain having bobbin rests spaced at intervals corresponding to the distance between said supply holders, and a common shifting devicev for the bobbins on said rests, said shifting vdevice having an upward motionto raise the bobbins from said rests and a transverse motion to push the bobbins onto said holders.

WILHELM REINERS. GUSTAV KAHLISCI-L .y

O GORREGTIQ.

August 14, 193,4.

WILHELMsEiNEs, Ei Ai..

It isrhereby certified that error appears in the printed specification of the above numbered patent requiring correction s follows: Page 5, lines 3 and 4, claim l0, strike out the words and commaA "for supporting bobbins to be unwound,"; and that the said Letters Patent Should be read with this correction therein that the same may contorni to the record of the case in the Patent Office.

Signed and sealed this |8th day of September, A. D. 1934.

(sen) Leslie Frazer Acting Commissioner of Patents.

yiis

said holders from receiving to unwinding position.

10. In a device of the class described, a plurality of supply holders, for supporting bobbins to be unwound, said holders being movable from un- Winding position to bobbin receiving position and from bobbin receiving position to unwinding po- CERHICATE Patent No. 1, 970, 188.

preparatory position opposite said holder in its 'receiving position, a shifter in the form of a piv- 'oted lever adapted to engage bobbins in said preparatory position and push them onto said holder, and means operable by said shifter on its return stroke for moving said bobbin holder from receiving to unwindin'g position.

12. In a device of the class described, a. plurality of supply holders, a conveyor chain having bobbin rests spaced at intervals corresponding to the distance between said supply holders, and a common shifting devicev for the bobbins on said rests, said shifting vdevice having an upward motionto raise the bobbins from said rests and a transverse motion to push the bobbins onto said holders.

WILHELM REINERS. GUSTAV KAHLISCI-L .y

O GORREGTIQ.

August 14, 193,4.

WILHELMsEiNEs, Ei Ai..

It isrhereby certified that error appears in the printed specification of the above numbered patent requiring correction s follows: Page 5, lines 3 and 4, claim l0, strike out the words and commaA "for supporting bobbins to be unwound,"; and that the said Letters Patent Should be read with this correction therein that the same may contorni to the record of the case in the Patent Office.

Signed and sealed this |8th day of September, A. D. 1934.

(sen) Leslie Frazer Acting Commissioner of Patents.

yiis

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