US1136686A - Automatic web-guiding device. - Google Patents

Description

. l. LEWIS.

AUTOMATIC WEB GUIDING DEVICE.

APPLICATION FILED FEB. I3. I911. 1,136,686. Patented Apr. 20, 1915.

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W. l. LEWIS. AUTOMATIC WEB GUIDING DEVICE.

APPLICATION FILED FEB. l3.19ll. 1,136,686. Patented Apr. 20, 1915.

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W. I. LEWIS.

AUTOMATIC WEB GUIDING DEVICE. APPLICATION mm ran. 13. tsp.

Patented Apr. 20, 1915.

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fnvenzor: W 3 JIM/A oQzi'd'orney WILLARD I. LEWIS, OF WALPOLE, MASSACHUSETTS.

AUTOMATIC WEB-GUIDING DEVICE.

Specification of Letters Patent.

Patented Ap'r. 20; 1915.

Application filed February 18, 1911. Serial No. 608.449.

To all whom it may concern:

Be it known that I, Wmmnn I. a citizen of the Unital States, residing at Walpole, in the county of Norfolk, State of Massachusetts, have invented a certain new and useful Improvement in Automatic Web-Guiding Devices, of which the following is a specification, reference had therein to the accom drawings.

The invention has r dhld n to devices of the clas intended to cause the selvages or margins of a traveling continuous web to follow :11 certain predetermined paths Instances 0 such devices are shown, de-

scribed, and claimed in my prior U. S. Letters Patent No. 678,121, granted July 9, 1901, and No. 905,720, granted December 1908.

The invention consists useutially in the combination with traveling endles carriers acting to positively hold the selvage or margin of a web, of ngeanshfor bringing the rtion o sue carrying means automntlcfilg to the 'tion of the oncomingportion ofthe' vageormargin, orto that of a predetermined lateral portion of the web, compensating thereby for variations in the line of travel of the said selvag'e or margin, or said other portion, of

the web.

An embodiment of theinvention in practical form is shown in the drawings com bined with a calendering machine.

In the drawings,--Figure 1 shows in side 85 elevation the said calenderingand the said embodiment of the invention. Fig. 2isaplanofthepartsshowninFigl, with certain parts broken away at one side ofthemachine. Fig.3isaviewinvertical section in the plane indicated by the dotted line3,3,inFig.2

Thedrawingsdlowtheframelandcalen rolls 2, 3, 4, of a. calend -machine of ordinary character and e of 5isthesupply-rollofthewebatobeoperated upon in the machine, the said web pai1fromtheroll5nnderandpartly aroun a lower guide-roll 6, then up to,-

preferably employ at 9 a detector-r0 and cooperating parts and features embodying" the main rinciples of the detector-rolls the ad uncts thereof as shown and described in my prior Letters Patent aforemd. The web passes under and partly around the detector-roll 9 after leaving the spreader-rolls 8, 8. As in the said patents, the said detector-roll is provided with ru- 1, dially movable detector-pins which are indimted by the dots at 10 in Fig. 2 of the dra hereof, the said detector-pins acting to etermine the 'tioii of sleeves 11, 11, lengthwise upon shaft 12 of the de' tector-roll. As will be understood, the

sitions of the said sleeves 11, 11, are varied transversely of the machine in correspondonce with variations in the positions of the respective selvages or of the web a, this variation being brohgt about through the agency of the detector-pins 10 accord- LE m m fi'iti l Es r? vages or e o e detectonmechamsm are fully shown and described in the said Letters Patent they are not shown herein, and specific description of the same is unnecessary. The detectorroll is rotated positively by means of driving connections comprising a. sprocketwheel 13 which fixed ppon tll fl shaft a sprocket-chain 4 passing pa aronn the said sprocket-wheel 13, sa second sprocket-wheel, 15, partly around which the said sprocket-chain 14 passes, a shaft 16 on which the said sprocket-wheel 15 is fixed, a second sprocket-wheel 17 fixed on the said shaft 16, a sprocket-chain 18 pasing partly around the said sprocket-wheel 17, and a sprocket-wheel 19 fixed on one journal of the calender-roll 3, the sprocket-chain 18 passing partly around said sprocketwheei 19.

Intermediate the detector-roll and the calender-rolls I employ the movi v or travel ing endless carriers to which have referred. The esential features of thefillustrated form thereof comprise selvagevcarrying wheels 20, one of which is located at each side of the path of the traveling web,

and u n which the selva or marginal portion s of the web are receii ed as the web leaves the detector-roll, and endless flexible bands, belts, or chains 21 which clamp the said selvage or marginal portions of the web upon the peripheries of the wheels 20. Each wheel is ournaled upon a stud 22 carried by a support 23, u n which stud the wheel is capable of revo ring-2s the web travels onward. The correspon g flexible band, belt, or chain 21 travels upon flanged wheels or pulleys 24, 25, and 26 mounted in connection with said support 23, in addition to trav around end-portions of a tele 'scopingcy der 2? and of a guide-roll 28,

the said' cylinder and cylinder-roll being mounted independently of the sa d support at the delivery-side of the carrier-devices. Between the dewheel or pulley 26 and the cylinder the said band, belt, or chain mend: around and coacts with about onelid! of the 'phery of the wheel 20. B mcanaof portionofthesaidban belt, or chain the corresponding salvage or marginal portion of the web as it poses from detecthr-roll 9 to and around such part f the 'phery of wheel 20 1s gripped positing the said periphery, and thereby y held or pulleys 24 and 25 are made adaptable to enable the tension of the band, t, or chain 21 to be 112%ated, and anv slack thereof taken pp.

e adjustability is attainefd by mount ng them I: o to arms 0 a supporting lever pivoted at upon the support 23. To one arm of the said lever is connected pivotally a screw-threaded rod 31 engaging with one internally-threaded portion of a swivel-nut 32, the other inmolly-threaded portion of the latter being eng rod 33 which is also pivotally connected at 34 with the lower of support 23. The screw threads o rods 31, 33, are oppositel inclined. By turning the swivel-nut, the lever 29 and wheels or pulleys 24, 25, may be moved to tighten or slacken the band,belt,orchain21asrequired. The said wheels or pulleys are located resfictively at oppcsite sides of the said band, 1:, orchainsoastoactthemore readily and iifectively in tightem'ng or slackemn' g the tter The sup rts 23 are pivoted at the delivery side 0 the earlier-wheels upon 11 per and lower pivots 35, 35. The axes o the pivots of each support are in practically the same radical line as the delivery-point of the corresponding wheel 20, so that when the support is swung transversely of the machine upon the said pivots by the automatic adiusfing mechanism the position of the said de very-point is not disturbed transversely. The salvage or margin of the web leaves the periphery of the wheel 20 with the band,

aged with a second screw-threaded belt, or chain 21, and with the latter passes under and partly around the telescoping cylinder 27, and passes thence to the cal endering rolls.

The automatic adjustment of'the receivmg portions of the trav ca gmeans transversely to the position of e selvages or margins, or other predetermined portions of the width of the web, is provided 'for Each arm 36 is embraced by a fork 39 extending down from a portion 40 of so port 23. Thereby, the movement of the co responding sleeve 11 transversely of the machine occurnng' in the detecting action of the detector-devices operates through the engagement of the arm 36 with the said fork to shift the portion of the traveling earner-devices correspondingly.

$2111, 2, is showma sp spring vmg' 'itsextremities withthestndscarnedbythe ports 23, 23, and on which the wheels 26% are mounted. This operates with a tendency to draw the earner devicw at the opposite sides of the machine toward eadi other, and through the t of the supports 23, 23, with the sleeves 11, 11, it operates to move the latter inwardly for co-action with the detecting pins 10.

As disclosed in the Letters Patent aforesaid, the detector-roll and associated are adjustable to suit the width of w op erated upon. Thedistanceaarhtransversely o the machine, of the elivery-portions of the traveling carrier-devica is adjustable-to suit the width of the web, and alsotogivetherequired readingortransverse action. 0 provide for the latter adjustment, the pivots 35, 35, are mounted upon blocks 41, 41, which in turn are mounted upon transversely-extending rods42,42,thataresupportedinbearings instands43,43,attachedtothefmme1 ofthecalen machine. Eachrod42is formed with ri t-and-left screw-threads, and each block 41 is internally threaded for screw-thread cut with the portion of rad upon which it is fitzgd. Consequen y, y rota a rod, e o blocks thereon ar d fnoved nearer t g stlig or farther apart. The two rods are connected to rotate in unison by means of sprocket-wheels 45, 45, fixed'thereon, and a sprocket-chain 46 posing around such sprocket-wheels, a hand-wheel 47 being fixed upon the upper rod for convenience in tuming the rods when required. In the transverse adjustment of the delivery-portions of the carrier-devices, they take with them the (-nd sections of the telescoping roll 27.

When operating upon a web having selvages or margins which are thicker than other portions of the web, the thick portions mass up more quickly upon the receiving roll than the other portions. To enable the increase to be distributed more or. less I provide for shifting the guiding devices bodily transversely of the machine. This provision is made by giving the screwthreaded rods 42, 42, capacity for movement endwise within their hearings in the stands 43, and by supplying a convenient handle 48 Figs. 2 and 3 in connection with a hub i9 Fig. 2 having a projection 50 entering between shoulders on a block 51 mounted loosely on the outer portion of one of such rods between collars 52, 52. The hub 49 is mounted upon an upright stud 53 carried by a bracket 54 projecting from one of the stands 43. By taking hold of the handle 48 and swinging the same and the hub 49 transversely, the screw-threaded rods and the delivery-portions of the carriers are shifted transversely, producing a corresponding shift of the web as it passes from the carrier-devices. To lock the parts in the position of transverse adjustment which has been given to them, the handle 48 is connected with the hub 19 by a horizontal pivot .55 on which it is adapted to swing verti- Cally, and a segmental rack 56 is fixed to bracket 54 below the handle. A projecting portion of the handle is adapted to engage with the teeth of this rack, when the handle is in its normal lowered position. Thereby the handle and other parts are locked against transverse movement. When the handle is raised, it is thereby disengaged from the rack, and may be swung transversely to the extent required for the trans verse shift desired in the case of the delivery portions of the carrier-devices, and then on lowering the handle into engagement with the segmental rack the parts are locked again.

Intermediate the two sets of carrier'de vices I employ a cloth-support 60 Fig. 3 in the form of an arch. This cloth-support is tele ctniic, being made in overlapping sections as shown in Fig. 3 in section. Each section is mounted upon an arched support 61, hich is pivotally connected at 62, at the side adjacent the detector-roll, to a supporting stand (33 which is mounted upon the cross-rod 37 with capacity to be shifted thereon transversely of the machine. This adjustment is effected by sliding the said stand along the said cross-rod. The stand is capable of turning around the crossrod. A rearward extension of the stand 63 is supported by an adjacent cross-rod .64 carried by the fixed frame 38. For the purpose of enabling the arch'shaped support to be adjusted forwardly and rearwardly when required, an adjusting screw 65 is combined with the said rearward extension of the supporting frame 63, the said adjusting-screw taking against the last-mentioned cross-rod. By turning the said adjustingscrew, the supporting-frame is rocked around the cross-rod 37, and thereby the pivot 62, and with it the arch, is shifted forward or back, according as the adjusting-screw is turned in one direction or the other. To enable the height of the arch to be adjusted, an extension of the arched support 61 is furnished with an adjustingscrew 66 taking against the rearmost portion of the said supporting frame, 63. By turning the said adjusting-screw 66 in one direction or the other, the arch is swung up or down. These different adjustments enable the arch to be brought into substantial concentricity with the traveling carrier-wheels 20.

In my co-pending application filed simultaneously herewith, Serial No. 608,448, I have claimed more broadly the combination comprising selvage detecting means, separate moving or traveling carriers for the respective selvages or margins of a web, and swinging supports for the said carriers op eratively controlled by the said detecting means to adjust the receiving portions of the said carriers to correspond with the oncoming portions of the selvages or margins.

I claim as my invention.

1. In combination, traveling endless carriers acting to positively hold the selvage or margin of a web, and means for bringing the receiving portions of such carriers automatically to the position of the oncoming portion of the selvage or margin or to that of a predetermined lateral portion of the web, compensating thereby for variations in the line of travel of the said selvage or margin, or other portion, of the web.

2. In combination, selvage-detecting means, sclvage-carrying wheels and selvageretaining endless bands cooperating with the said wheels, and means controlled by the said selvage-detecting means for automatically adjusting the receiving portions of the said wheels and bands to correspond with the oncoming portions of the selvages or margins of the web being operated upon.

3. In combination, selvage detecting means, selvage-carrying wheels and selvageretaining endless bands cooperating with the said wheels, supports for the said wheels and bands pivotally mounted adjacent the delivery portions thereof, and means controlled by the said selvage-detecting means for automatically adjusting the receiving portions of the said wheels and bands to correspond with the oncoming portions'of the selvages or margins of the web being operated upon.

4. In combination, selvage-carrying means, for the opposite selvages of a traveling web, and means for bodily shifting the said means transversely at will without varying the distance apart of the devices at the opposite selvages to thereby correspondingly shift the general path of the web being operated upon.

5. In combination, selvage-carrying wheels and selvage-retaining endless bands cooperating with the said wheels, and means for bodily shifting the said wheels trans: veisely without varying their distance apart to thereby correspondingly shift the general path of the web being operated upon.

6. In combination, selvage-carrying wheels and selvage-retaining endless bands cooperating with the said wheels, means for adjusting the said wheels toward and from each other, a telescoping arch-shaped websupport intermediate the said wheels, and means for adjusting the said web-support vertically and also from front to rear to bring it into concentricity with the wheels.

7 In combination, salvage-carrying wheels and selvage-retaining endless bands cooperating with the said wheels, swinging supports for the said wheels and bands, supports to which the said swinging supports are pivotally hung, means to adjust the said supports transversely to thereby vary the distance between the delivery portions of the respective wheels, and means to shift the entire assemblage transversely with respect to the path of t e web being operated upon.

8. In combination, selvagedetecting means, selvage-carrying means and selvageretaining endless bands cooperating with the said wheels, swinging supports for the said wheels and bands pivotally mounted adjacent the delivery portions thereof, means controlled by the said selvage detecting means for automatically adjusting the receiving portions of the said wheels and bands to correspond with the oncoming portions of the selvages or margins of the web being operated upon, and means for bodily moving the delivery-portions of the said wheels and bands and their swinging supports to efi'ect a transverse shift oi the gen-.

eral path of the web being 0 erated upon.

In testimony whereof I a 'X my signature in presence of two witnesses. \VILLARD I. LEWIS.

Witnesses:

CHAS. F. RANDALL, NATHAN B. DAY.

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. 1,136,686, granted April 20, 1915, upon the application of Willard 1. Lewis, of Walpole, Massachusetts, for an improvement in Automatic Web-Gniding Devices, an error appears in the printed specification requiring correction as f ollowsz Page 4, line 40, for the word meens second occurrence, read wheels; 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. I

Signed and sealed this 11th day of May, A. D., 1915.

[SEAL] R. F. WHITEHEAD,

Acting Commissioner of Patents.

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