US1564794A

US1564794A - Feeding device for webs of paper and other material

Info

Publication number: US1564794A
Authority: US
Inventors: Humphreys Harry
Original assignee: Union Bag and Paper Corp
Current assignee: Union Bag and Paper Corp
Priority date: 1923-12-04
Filing date: 1923-12-04
Publication date: 1925-12-08
Anticipated expiration: 1942-12-08

Description

Dec. 8, 1925. n 1,564,794

H. HUMPHREYS FEEDING DEVICE FOR WEBE OF PAPER AND OTHER MATERIAL Filed Dec. 4, 1923 3 Sheets-Sheet 1 f Fig.4,

1 veziibl WKW DeC. 8 H. HUMPHREYS D OTHER MATERIAL FEEDING DEVICE- FOR'WEBS OF PAPER AN Fi1ed Dec.4, 1923 3 She ets-Sheet 2 Dec. 8,1925. 1,564,794

H. HUMPHREYS FEEDING DEVICE FOR WEBS OF PAPER AND OTHER MATERIAL Filed Dec. 4, 1923 3 Sheets-Sheet 5 IINVENTOR .I I jj r ry umpizfeys ATTORNEYi.

Patented Dec; 8,1925

UNITED STAT ES 'P ATENT OFFICE. 4

HARRY HUMPHREYS, 0F RALnAMoNA, DAVENPORT, ENGLA D, AssIGNoR '10 UNIoN IBAG'& PAPER co Po ATIoN, 01 EW YoRx', N. Y., A coRroRA'rIoN OF NEW JERSEY.

FEEDING ngvron FOR wins or PAPER AND OTHER MATERIAL.

Application filed December 4, 1923. Serial No. 678,533.

To all-whom it may concern:

Be it known that I, HARRY HUMPHREYS,

a subject of the King of Great Britain and Ireland, and residing at Ballamona, Davenport, in the county of Chester, England, have invented certain new and useful Improvements in and Relating to Feeding Devices for \Vebs of Paper and Other Material, of which the following is a specification.

This invention relates to a method of and means or devices for correcting, regulating or adjusting the register or position of a mark or imprint iipon a previously marked or printed web of paper, cloth, cardboard, pulpboard or other material hereinafter referred to as material) relative to a device operative upon such at intervals in the length thereof, of the type wherein the material is automatically maintained in register by aid of perforations formed in the web in co-operation with a detecting device.

The invention has for its object the provision of an improved automatic method and means whereby the register ,of the mark or imprint upon the material is maintained or controlled with respectto the functions of the device operative upon the material at intervals in the length thereof.

,1.\ccording-to the invention the relative rate of feed of the material with respect to the functions of thedevice operative thereon at intervalsin its length, ,is relatively re tarded or increased by means actuated by or dependent for their actuation .upon'the position of the perforations in the material with respect to a point or detective device fixed as regards positions or constant in point of time and with respect to a con trolling device timed to. function in synchronism with the movements of the device operative upon the material. y

The detector device may be in the form of electric means such as afceler or electric contact adapted in certain circumstances to establish a circuit through a perforation or orifice in the material, or such device may be pneumatic, operating either by compressed air or upon a vacuum system dependent upon thefsituation of an orifice or I perforation relative thereto.

The controlling device may he in the form of a rotary switch or distributor in the case of an electrically operated method and where pneumatic means 'are employed a valve, preferably of rotary form, may be utilized. Further,'the controlling device may be embodied or incorporated in the detecting device by causing the latter to be moved or rotated in synchronism with the movements of the operative device.

The invention also comprises a method of regulating or controlling the position of a mark or imprint upon a previously marked or printed web of material relative to a device operative upon such material at intervals in the length thereof, consisting in continuously drawing or tending to draw or feed a longer or shorter length of material than is required according to the interval at which it is designed or intended the material is to be operated upon in relation to the mark or imprint and in automatically retarding oradvancing the rate of feed of the material; in accordance with the excess of-deficiency of materialtending to be de- The invention also comprises making an electric contact through an orifice in the material to cause electric current to flow, and controlling the duration of flow in timed relationship with the function of the operative device so as to effect any desired altera tion in the relative position of the mark or imprint to the operative device.-

' It is pointedi'out that alterations in the rate of feed of material or lengths of material operated upon are'relative and that the invention includes: change of rate of feed or length of material delivered to an operative device operating at a constant speed, and a constant rate of feed or length of material delivered to an operative device actuated 'in a variable manner either as regards timeprposition, that is to say, the intervals of time at which the operative device functions may-be varied (increased; or

clude an decreased) or the longitudinal position which such device operates with respect to the means delivering the material may ;be' adjusted towards or away from such deliv- 'ery means. Thus in reading the foregoing and following description, consequent modifications must be included with the terms employed.

The. operative device above referred to may be a device or mechanism adapted to impose a further mark or imprint upon the material, either by superimposition or in spaced relationship to the first mark or imprint, or the device'may be one adapted to sever, fold or perforate the material in relation to a mark or im rint.

The term perforation is intended to inslot or aperture in the material or any ormation or increase in thickness by the aid of which electrical contacts may be made or energy released.

Perforation's 1n the material should be disposed in predetermined relation to the imprint and with respect to'the controlling device whether such device be operated in unison with the severing or other device or otherwise.

In the accompanying drawings Figures 1 to 5 diagrammatically represent various modes of carrying the invention into effect.

Fig. 6 is a diagrammatic view of a machine illustrative of my invention; Fig. 7 is a diagrammatic view of a detail.

In carrying the invention into effect according to one convenient mode, as applied by way of example to a machine which is adapted to be supplied with a previously printed web of material bearing a series of perforations orapertures, each of which is situated in a definite or substantially constant relationship with an imprint, an appropriate roller in the machine, preferably a roller such as A (Figure 1) over which the material is introduced into the machine, is provided with a continuous metal contact device. This may be in the form of a metal band encircling a'portion of the roller or the roller itself may be entirely of metal so that it may act as a conductor for electric current. he material 10 indicated by the dot-dash line is adapted to pass over this roller A in its travel into the machine and in alignment with the path of the series of perforations or apertures a detector or fixed contact brush a (hereinafter termed the orifice establis detector brush) is mounted, so that as each passes beneath 'the brush contact is ed between the brush and the roller or band and current may flow from the brush to the roller-(or band) or vice versa. 7 In order to convey current to or from the roller a second brush or contact (1 (hereinafter called the feeder brush) is mounted in an appropriate position so that it will continuously bear upon the metal roller or upon the metal band in the case where the whole of the roller is not conductive.

In any suitable situation upon or adjacent the machine, a rotary controller or dlStIiblb. tor B is provided which may be in the form of a metal disc mounted upon trunnions or upon a shaft so that it may be rotated. The edge of the disc is provided with a strip or short sector of insulating material I) so that any contact device bearing upon the edge of the disc will ride over the insulating strip once during each revolution According to the preferred'form two con I tact brushes 6 and b are provided which are adapted to ride upon the edge or periphery of the controller or distributor disc and are connected by electric leads in a circuit to be hereinafter described.

A third contact brush b is provided which en agesthe disc so" that'it may act as a fee or return or from the controller disc.

Feed rollers 1112 of the usual type adapted to draw anddeliver the web to a,

severing device 13 are provided but are so driven or set that they continuously advance 'or tend to feed to the severing device a greater length of material than'is required for the severed into lengths. One of these draw rolls (or both of them) is provided with a brake 14 adapted to be actuated bya solenoid or other electrical or electro-mechanical device 15; with a'view to retarding the operations of the draw rolls to cause such (instead of delivering an excess of material) to deliver that length required according to the correct size of length to be severed. The retarding of the draw rolls may .be accomplished by providing a triopath forcurrent to purpose for which the material is tional drive therefor and permitting slipto take place. I

According to another form the draw rolls may be positively driven so as to tend to deliver an exces's to the severing device and a device may be provided which is adapted to act in the nature of a brake 16 (Fig. 7) upon the material or a variable extension of its path, before the material reaches the draw rolls. -When such device is'opcratod the material willbe momentarily-held back from the draw rolls causing same-to slip and consequently deliver-a decreased length of material to the severing device than they would deliver in operating upon the material when unretarded. r

The brake or .functionally equivalent mechanism, whether upon the draw rolls themselves or adaptedg to' act upon the material previous to its e t'ry between the draw rolls, may be provide "with means whereby the retarding or braking efi'ect'may be varied or adjusted manipulation.

The rotary controiler or distributing disc B is driven androtated in synchronism with the severing device 13, that is to say, in the present instance for each operation of the severing device upon the web the rotary control disc B makes one revolution.

Contact brush 6' bearing upon the edge of the rotary disc is connected to one pole (say- ;tive) of the source of E. M. F. by a line 3 which includes in its electric circuit a relay device 4 which when actuated is adapted to draw down an armature or switch member 5, so that the switch member or armature is connected in the circuit to the negative pole of the source of supply.

The third brush or contact 6 is connected (line 6) to the armature or switch arm 5 of the relay 4. Across the relay device or in any other suitable situation a parallel circuit '7, 8 is provided adapted toconvey current to the solenoid or other electric or electro-mechanical brake operating device 15 at the draw roll end of the machine.

The contacts 7) and b of the distributor or controller B are spaced apart at an appropriate circumferential distance, so that in view of the direction of rotation of the disc (indicated bythe arrow) they are separated in point of timeby any period upto that approximately corresponding to a length of material delivered to the severing device for the full length required.

" The situation of the brush b may be .ad-

justed by any suitable means towards or away from the contact I) accordingto the -'pc1'iod for which it is desired the brake should operate.

In operation the rotary controller device 13 is set so that at the moment the severing device13 severs the web, the insulation strip is under the contact I) of the rotary controller.

Assuming the paper web is being delivered or'fed to the'severing device with'its imprint in correct register with the operation of the latter and the correct lengths of web are being delivered, the detector 'brush a will make contact with its roller A through a perforation in the material simultaneously with the arrival of the insulation strip 1) beneath the brush 1) and consequently no current will flow: in the electric circuit. Should, however, the feed rollers deliver a longer length of material to the severing device than is requisite, the corresponding per foration in the web will arrive at the detector brush a prior t6 the arrival of insulation strip 1) beneath the contact N. In such c rcumstances the electric circuit will be completed through the perforation in the web in what may be the primary circuit, viz, (see- Figure 1) positive lead 1, 'b, conducting body of controller disc B, brush 72 feeder brush a, roller or band A, detector ing the relay device to operate the switch or armature 5 and place the brush b in electric circuit. Almost immediately the continued rotation of the controller B causes the primary circuit to be broken at a point away from the material by reason of the insulating strip 1) coming under the brush N, or by reason of the material intervenlng at the detector brush, in which circumstances the current will flow or be maintained in what may be referred to as the secondary circuit, v1z,

from brush b direct to the brush 5 (through the disc B) and through the armature or switch 5, lines '7 and back to the negative pole through the lines 8 and Thus the maintained secondary circuit comprises positive supply, brush 6, controller disc, brush b armature or switch 5, relay coils 4 and negative lead 3 with the

brake circuit

7 and 8 in parallel. The establishment oi? this circuit causes the brake or equivalent device 14-15 to operate at the draw rolls and retards the feed of material correcting the defect which has given rise to the establishment of the circuit. The secondary circuit will be maintained until the insulating strip arrives at the brush b when the circuit will be broken, only to be re-established again when a perforation arrives underneath. the detector brush before the insulating strip Z) coincides with or meets the brush b According to a modification, instead of providing a fixed detector brush, a rotary detector brush or contact maker may be employed. In this form the upper roller A brush a, relay 4 and negative lead 3, cans:

(Figure 2) of the rear draw rolls (or other appropriate roller) is provided with an arcuate brush or contact maker a located in the ath of the perforations upon the material. he rotary cqntact brush under certain conditions is adapted to make contact with a 'lower roller A through the perforations or apertures in the material.

The rollers A, "A should be driven synchronously with the severing device.

The lower roller -A may be made intirely of conducting metal, or a portion thereof, such as a band, may be adapted to act as a conductor.

The roller A or its hand has a constant electrical connection by the aid of a brush 7). I

A second brush 6 is provided for the roller or band situated in the path of an insulation strip or block. b with which the :roller or band is provided; In-this modification the primary circuit comprises the positive source of supply, leads 1 including relay'coi1s4, rotary detector brush a, body of the roller A or its band, contact brush 7) and return lead 3 to negative supply. The secondary circuit comprises positive source of supply. relay coils 4 and

parallel circuit

7, 8 of brake device, armature or switch arm contact If, body of roller A or its band, brush b and return to negative supply. 1

It is to be noted that in the present and in '5 the hereinbefore described manner of carrying the invention into effect the parallel cir cuit '7, 8 18 included in both e primary and secondary circuit but is referred to as being part of the secondary circuit as it continues 1 to carry current after primary circuit is J'broken.

In operation the rotary detector brush a is set so that the perforations in sequence pass in rear of, and preferably just in rear or behind of it, and this relative situation of the detector brush and the perforations are synchronous with the operations of the severing devicewhenever the correct length of web is delivered to the severing device.

Assuming the material to be correctly in register it will be appreciated that a per foration arrivesbetween the two rollers A, A too late to be engaged by the rotary de tector brush a so that the latter cannot es- I tablish electric circuit with the roller beneath it, but as soonas the draw rolls feeding the severing -device advance a greater.

length of material than required, the next apertureor perforation will arrive at the point of contact between the two rollers A, A 'beforethe rotary detector brush a has "left the peripheral point of ,cdntact and,

5 consequently,'electric'contact will be establishedthrough the aperture and the prlmary circuit will be established via the brush b The'making of the primary circuit immediately causes the armature or switch arm 5 -to-.. introduce the secondary circuit .via the contact 6 As soon as the perforation and 0' rotary detector. brush a pass away from the contactroller or band A, the primary cir cuit'is broken. The secondary. circuit wlll be-maintained during the rotatlon of the 1n-.

sulation strip b-iintil it reaches the contact- 6 when the secondary circuit will be broken.

The; duration of the current in the secondary circuit depends upon the situation of the brush I2 and the position of the insula-' tion strip in its rotary path with respect to the-time at which the perforation arrives.

* funder the' rotary detector brush. a. For the 'urpose of varying the period over which the brakejs' applied to the draw rollsby the maintenance'of the secondary circuit the situation of the brush 6 may beadjusted' by any convenient means'in an arcuate path.

substantial portion of its circumference. In

Ntive source of supp spring-pressed plunger a, located .in the path of-the perforations in the material and con.-

nected by lead 2 in an electric circuit, the

making of which eitherdirectly (or indirectly by aid of a secondary circuit) actuates v meansfor. altering the position of the imprint or mark upon the material relative to the severing or operative device. The arcuate contactpla'te C is also electrically connected in the circuilt preferably to the posi- The branch leads 7, 8 extend to the brake device or other means for altering the'position of the imprint with respectto the severing device, so that such device or means is included in the circuit as indicated in the figure.

When the spring-pressed plunger a re isters with a perforation,.contact is establis edbetween the plunger and the arcuate plate C. During the rotation of the plunger in contact with the material the arcuate plate supports the plunger and obviates any effect the latter might otherwise have to puncture or bulge the material at the point of contact.

In operation the roller A is set so that when the. arterial is in correct register with the se ering device. the perforations on the web pass in rear of the plun era so that no electric circuit is established. When the material is out of register a per-' foration' will coincide with the plunger'a and travel with it over the'interval during which thematerial travels through vthe zone of the arcuate plate C. Consequently, the plunger a will contact with the arcuate plate C and establish the electric circuit which is tering the disposition of the mark or imprint ln relation to the function of the severing device and this contact will be mainto cause the actuation of the means for al- -11) tained for the whole of the period during" which the plate. 4 v I The period during which the electric circuit is'maintained may be varied by providing means whereby the effective length of plunger. travels over the arcuate theplate may be varied. v

The foregoing description has been confined to the application of the invention to instances in which the draw rolls are driven or'set.' to feed anexcess of material. The invention may, however, be carried into effect by arranging forthe draw rolls conadapted to operate mechanism or cause stantly to deliver a "less quantity of material than is desired. In this circumstance,

mechanism to be operated to accelerate or increase the .feed o f'material to the severing or operative device asjcircumstances arise which'necessitate a correction of the feed.

According to one simple mode of carrying out this application of the invention, the

forward draw rolls 11' may have a brake device 16 (Fig. 7) initially set consistently to restrain them from deliveringthat quantity of material which their circumference and/or rate of revolution according to their gearing would cause them to deliver were they unrestrained. Immediately the machine begins to operate to deliver insuflicient lengths of material, the detector device establishes a. circuit upon the lines of any of those previously described and causes the brake to be relieved, whereupon the rollers immediately commence to ad- Vance the greater length .of material which they would normally have fed had their operation been unrestrained. The roller will continue to advance the increased lengths of material until the deficiency is made up when the brake is again applied.

Accordingto a modification the detector device may be adapted to control both 'acceleration orincrease in rate of feed and retardation of the material according to whether it has lagged or crept with respect to the severing device. This may be ac eomplished by providing a reversible motor, for example, as shown in Avery Pat ent No. 1,517,099, November 25th, 1924, adapted to operate a compensating or sun and planet drive for thedraw rolls. Alternatively, a pair of brakes may be utilized, one 16 (Fig. 7) adapted to maintain a constant speed in the feed rollers until released when an increase of speed would occur, and another brake 17 the effect of which may be superimposed on that of the first brake to cause retardation of the material.

In the case of control by acceleration and retardation, a pair of detectors may-be ar-' ranged so that when lag or creep occurs; one or other of duplicate circuits is made or introduced to operate the appropriate brake.

In. carrying the invention into efi'ect'for producing a retardation or an increase of rate of feed to the severing or operative device, according to whether thematerial has crept forward or lagged behind a predeter mined or normal rate, an appropriate roller A of the mac'hineis provided with a pair of detector brushes or contacts a, (1*. These brushes may be conveniently spaced apart at the periphery of the roller A a sutficient distance to permit a perforation to lie mid way between the two and so that if a perforation be a fraction (or a predetermined period) early or late in arriving at one or other of the detector brushes, the appropriate circuit will be established by aid of one of two controllers or distributors. A

third brush a similar to .thefeeder brush already described is provided for the roller A and adapted to act as a constant electrical feeding contact device. a

Two controllers or distributors B and B are provided which rotate in synchronism with the operations of the severing or other device. Each controller has three brushes, viz; e, e and e in association with the controller B which takes care of the retardation circuit, and f, f and f in association with the controller B (acceleration). An insulation strip or block b, b is provided for each of the controllers.

Relay devices 4 and 4: provided with armature switches 5 and at are employed in the circuits for introducing

parallel control circuits

7, 8 and 7, 8 into the secondary circuits upon the principle already described.

The'leads

7, 8 extend to a device 16-18 adapted to eflect the acceleration or speeding up of the forward draw rolls and the

leads

7, 8 control'the retardation of the draw rolls. The devices employed at or in conjunction with the draw rolls for effecting these urposes may be of any appropriate kind; for. example, a reversible motor or brake means may be adopted as hereinbefore indicated;

The various brushes, relay and switch devices are connected up as shown in Figure 4.

The controllers B, B are set sothat under 7 normal conditionswhen the feed is as desired and the material 1s 111 correct register with the severing or operative device, the

insulation part b is due to come under the brush 0 and the part b is due to leave the brush f at the moment when a. perforation passes beneath the brush a on the one hand and beneaththe brush a* on the other.

For convenience and having regard to the short arcuate contact the material has.

with the roller A, the setting may be ar-J The position of the brushes 0, e and f, f

may be adjustable in order to vary the period during which the secondary clrcuit is maintained and, consequently, the length of time during whichthe means adapted to cause the correction of the material are operative. I

In operation, assuming the material to have worked out of register by creeping for- Ward,.a perforation will reach the brush a' earlier than normally and, consequently, be-

fore the insulation strip 6 has arrived under the brush 6. Thus a path is open to the current, via: brush a, controller B, brushes e, a, a and through-the relay coils 4* to the negative. The switch 5 is closed by the energizing of the relay coils, introducing the secondary circuit which maintains the current in the

parallel circuit

7, 8*, to cause the retardation of the material, until broken by the insulation strip '1) as it meets the brush a. 1

Should the material have lagged, a perforation will arrive late at the brusha'.* and at a time when the insulation strip 6' has left the brush 7, causing the primary circuit reason of the engagement of the insulation strips with their respective brushes.

--In carrying the invention into effect according to an alternative arrangement to that above described for effecting the control of the materialin both directions, a single controller B (Figure 5) may be employed. The roller A, brushesa a* and a and the relay coils, armature switches and. parallel circuits, are arranged as already described n connection with the modification represent ed in Figure 4. According to this arrangement the brushes a and a* should be situated only so far apart as to admit eta-perforation conveniently to be accommodatedbetween the points of contact.

The controller B is provided withthree brushes, 0' and e the brush 6 being adjust-' able in order to control'the period during Which'the acceleration or retardation of the material is efl'ected.\

The setting of the parts according to this modification of the invention, should be such that the insulation strip 6 arrives in .the situation shown in Figureh when the material is in correct register with the sever ing or operative device andthe' perforations arrive on timebetween the detector brushes. The dimension of the insulation strip 6 and its setting should be arranged so that a small the invention into effect, the perforations margin of contact for the brushes 0, c with the conducting part of the controller and on each side of the insulation strip, is allowed in respect to the .predetermined amount of lag or creep upon which the required corrective operation comme'nces. This margin is sufficient to allow the primary circuit to be established to actuate the secondary circuit, when a perforation arrives early or late, as the case may be, at the detector brush a or a*, respectively, before the primary circuit is broken by the insulation strip passing beneath the brush 6.

' In operation when the material has crept forward, a perforation arrives at the brush a earlier than itshould do but, nevertheless, before theinsulation strip 6 has passed under the brush e by reason of the margin above referred to.- Similarly when the material has lagged and a perforation arrives a fraction late at the brush a", a path is still open for the current from the brush e to the brush e throngh the controller B. When the rate of feed is normal the rear of the insul ation strip 7) lies under the brush e when the perforations pass beneath the brush a.* and when the perforation advances under the brush a the insulation 1) is under the tions withthe controller for establishing the;

circuit in the first instance is caused to contact with a supplementary insulation over a portion of the circumference arranged so that the circuit cannot be established through this brush exceptwhen the control- 'lingdevice occupies that position in respect to the brush inconnection withwhich aparticular series of perforations is timed to cooperate. In other words, for example, when w 'the controlling device is set to make, say, half a revolution for each operation of the severing device the particular series would be alternate perforations and'whenthe in-I appropriate alternate perforation arrived at the detecting device the brush would lie on the supplementary insulation. Alternative- 113;, this end may be achieved by retaining t e arrangement as, for'example, shown in Figure 1 and in providing the material with perforations spaced at intervals corresponding with the time taken for the fractionally driven controller to make one complete revolution.

According to another manner of carrying in the material may be utilized as vents for a pneumatic system operating either upon the compressed air principle or upon a vacuum system.

The registration of an orifice in the material may either directly or indirectly through a controller or valve operate an electric switch mechanism to introduce a circuit for controlling the material according.

to any of the means above described. Alternatively, the pneumatic means may function entirely upon a neumatic system, the pressure or vacuum e ect being conveyed to an appropriate mechanical device by conduits to operate means for advancing or retarding the material with respect to the severing device.

According to one mode of carrying the inventioninto effect upon the compressedair or vacuum system, pneumatic orifices or a slot form of orifice may be adapted to co-operate with the material which when the materialis in the correct situation, although registering with an orifice, will not cause the I kind devices dependent thereon to function ow-- ing to the situation of a rotary controlling or master valve, such valve being set to function synchronously with the severing device and permit the pneumatic pressure or vacuum to take effect only when a hole or perforation in the material arrives late or early with respect to the situation of the valve.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is 1. A method for the purposes and of the kind described comprising retarding or increasing the relative rate of feed-or delivery of the material according to whether a perforation in the material arrives early or late in respect to a predetermined normal moment of arrival at a stationary detector or detectors and in respect to the arrival at a certain point of a moving element removed from the material and timed constantly to arrive at that point in synchronism with the operations of the severing or other device. I a

2. A methodfor the purposes and of the kind described comprising continuously feeding or tending to feed a longer or shorter length of material to the severing or opeerative device than is required according tothe intervals at which it is intended the material is to be operated upon in relation to the mark or imjprint and automatically retarding in the one case or advancing in the otherthe relative rate of-feed of vthe material to the severing or other device according to the disposition of a perforation in the material in respect to a fixed 'orpredetermined point.

3. A method for the purposes and of the described comprising continuously feeding or tending to feed a longer or shorter length of material to the severing or operative device than is requ red according to the intervals at which it is intended the material is to be operated upon in relation to the mark or imprint and automatically retarding in the one case or advancing in the.

other the relative rate of feed of the material to the severing or other device accord- I ing to the disposition of a perforation in the material in respect to a fixed point, and in reference to the arrival at a certain point of a moving element timed constantly to arrive at that point in synchronism with the operations of the severing or other device.-

4. A method for the purposes and-of the kind described comprising feeding or delivering material to a severing or operative device at the normal rate required according to theintervals at which it is intendedthe material is to be operated upon "in relation to the mark or imprint and eitherautomatically retarding or advancing the relative rate of feed or delivery of the =material, dependent upon the early or late arrival of a per foration at one or other of a pair of st tionary detecting contacts or devices and respect to the arrival at alcert'ain point of v a moving means timed constantly to arrive at that point in synchronis'm with the operations of the severing or. other device; 5. A method for the purposes and of the kind described comprising establishing. a primary electric circuit througha perforation in thematerial, causing the current in i such circuit to introduce a secondary circuit, causing the latter circuitto. be "maintained for a period and utilizing the current to operate means adapted to -retard or ad- ,vance the relative rate of feed of the mate rial to a severing or other de vic e.

6. A method as claimed inEclaim 5, char acterized in this, that tlfeprimaryicircuit is made through a perforation in the material and broken at a point away from the material. y v

7. The method of feeding a web of material having a series of perforations therein and acting thereon at predetermined intervals in the length thereof, which comprises feeding the web along, closing-j an electritroller means operating synchronously with said device for-:acting on said. web, a detector device for'j clo'singan electrical circuit through'a perforation in said web, means" for permittinga circuit 'to'be closed through said detectordevice and controller when the web reaches the devicefor acting thereon out of proper register therewith, andmeans controlled bytsaid circuit for modifying the speed of movement of theweb so as to cause the same toreach the'devicelfor acting thereon in proper register.

9. 'In a device of the character described,

feed rollsfor a web of material having a plurality of perforations therein, a sev ering device for. severing predetermined lengths of material fedthereto by said feed rolls, a detector device, a controller, meansfor permitting an electrical circuit to be closed through a perforation in-the web and through-said detector device and controller when the web reaches the severing device out of proper register therewith, and means controlled by said circuit for modifying the movement of the Web to cause the same to reach said severing device in proper register.

10. In a device of the character described,

feed rolls for a web of material having a plurality of perforations therein, severing means for severing predetermined lengths or said material fed by said feed rolls, a con- 'troller operating synchronously with said severing device, means for closing a circuit through a perforation in "said" web andthrough -said controller when the web reaches the severing device out of" proper register therewith, means controlled by said circuit for causing the feed of the web to be modified so as to cause the same to reach the sever.

ing device in proper register, and means to preventthe closing of said circuit when the web reaches the severing device in proper register therewith.

11. The method of feeldihg a web of matein proper predetermined "register, said co 1 rial having a series ioffperforations,therein i8! travelling web to bemoditied to cause-the 46 same-tocome inproper register.

12. In a device of thecharacter.described; feed rolls for a web;ofmaterial Lh'avingia plurality of perforations the-rein, means for acting thereon at intervals in thelength 50 thereof, a controller operating. synchronous-e 1y with said severing'device, means for-c'los-I 1 mg an electric circuit through-a perforation i in-said web and through said'controllerwhenf the web reaches the means for acting th re; on' out of predete'minedproper register therewith, means under the jcontiol of such circuit for causing saiddevicefo'r acting on said web at interVaIs-andsaid-web' to come troller ha'ving insulating means-forpreve j ing the closing of said circuit when said-web and said means for actingthere'on at intere. vals come in proper-predetermined register.

In testimony whereof I have signed my name to this specification .1. I c

- HARRY HUltiPHREYS;