US1137279A - Method and apparatus for producing compound sheets. - Google Patents

Description

*y l. PETERSON. METHOD AND APPARATUS FOR PRouuclNG coMPouNu SHEETS.

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J. PETERSON. METHOD AND APPARATUS EoR PRoDucTNG coMPouNn SHEETS.

:APPLICATION FILED AUG.3, 1914. 1,137,279. Patented Apr. 27,1915.

2 SHEETS-SHEET 2.

until it is to be used.

JONATHAN PETERSON, 0F BROOKLYN, NEW YORK.

AMETHOD AND APPARATUS .FOR PRODUCING- COMPOUND SEETS.

Specification of Letters Patent.

Patented Apr.27,1a15.

Application filed August 3, 1914. Serial No. 854,778.

To all whom, t may concern.'

Be it known that I, JONATHAN PETERSON, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have-invented new and useful Improvements in the Method and Apparatus for Producing Compound Sheets, 4of which the following is a specification.

This invention relates to a method of and apparatus for producing compound sheets, and while these improvements are useful for forming compound sheets of different kinds and for different purposes, I have illustrated the improvements as applied to the production of compound sheets which are particularly useful forV forming pouches or containers for an article of manufacture such as tobacco.

A principal object of this invention is to provide an arrangement whereby a compound sheet may be web which can be kept in the form of a roll When it is to be. used, the compound web is drawn from itsroll and outy into sheets lor blanks from which any article such as pouches or containersl may be formed.

In the present instance, intended to contain tobacco able that the wall of such a pouch or container should be substantially impervious to moisture andthe pouch as a whole substantially air-tight.

A further bbject of the invention is to provide a method and apparatus particularly adapted for-forming a compound sheet or web 4embodying a metallic foil treated so that when the the pouches lare and it is desirwhen inadryv state, in this way. avoidingv 'in the apparatus.

produced in a. very simu ple manner and in the form of a compound` pouches are formed they can ,be readily sealed and so that the wall of the will be substantially impervious to the diliiculties which arise where a moist adhesive is employed to join the'sheets; such pressure when applied to a moist adhesive, tends to squeeze the adhesive out between the layers or webs and this tends to interfere witlrthe eficient operation of the apparatus.

The invention resides in the method, and

The invention inthe apparatus consists in the general combination of .parts and simplicity of detail hereinafter described, all of which contribute to produce eilicient apparatus for producing compound sheets.

The invention in the method consists in those steps and combinations of steps and features to be described ihereinafter, and which contribute to produce an eilicient method for forming the compound sheets. The preferred embodiment of my invention will be particularly described in the following specification while the broad scope of my invention will be pointed out in the appended claims.

In the drawings: Figure l is a diagrammatic View showing the apparatus partly 1n side elevation and partly in sectiom certain parts being illustrated in dotted lines. Fig. 2 is a vertical section taken through a reservoir or holder for a supply of a compound which I prefer to use for coating the plies or webs which I combine to form the compound sheet. Fig. 3 is a plan of the reservoir shown in Fig. 2, certain parts being brokenaway and others shown in section. Fig, 4 is a vertical section taken about on the linel-4 of Fig. 3, and further illustrating details of the apparatus. Fig. 5 is a side elevation illustrating another device for applying a compound to the sheet as it is being formed. Fig. 6 is a. plan of parts shown in Fig. 5.V Fig 7 is a cross section taken about on the line 7-7 of Fig. l and illustrating the preferred means for drying the coatings which I apply to the web. Fig. 8 is a cross sectiony taken on about the line 8-8 of Fig. l and illustrating the preferred means for drying the coating which is applied by the device shown in Fig. 5. Fig. 9 is a perspective showing a portion of the complete compound web. Fig. l0 is a cross section illustrating the compound web or sheet.

In carrying out my invention, I prefer to provide means foradvancing a plurality of webs superposedoneupon theV other, the adjacent faces ofthe said webs being coated with` a substance which `is adhesive when f oo J Fig. 2, i: are provided which moist, and which has highly cohesive properties when dry.

In the present instance, one of these webs is composed of a frail metallic foil such as a tin foil and I employ a single backing web of aper or similar material which I u nite to the foil. For this purpose, I prefer to provide an elongated table 11 along the upsurface of which I guide the upper ruu of an endless carrier belt 13 the loops of which belt passV around guide pulleys 14 at the ends. of the table. On the under run of this belt I may provide pulleys 15 for additionally guiding the belt and for tightening the same aswill be readily understood. The upper run of this belt lies fiat onftlie table and by any suitable means the belt may be driven slowly in the direction of the arrow indicated in Fig. 1. Belt 12 is preferably of rubber.

At a convenient point preferably at the.

left end of the table, as indicated in Fig. 1,

provide means foil, said foil being in the form of a web 18 which is drawn out around guide pulleys 17 and extended along the table so that it is superposed upon' the belt 12'the other end of the said web being coiled into a roll 19 on a suitable arbor 20. This web 18 of foil is .preferably of .slightly greater width than the'belt12 and the table 11 so that the margins 21' of the foil web project beyond the edgesof the belt. in some such manner as illustrated in Fig. 7, the foil web being preferably fsubstantially centrally disposed onthe belt so that these mar- 'ns are of equal width.

As thebelt advances, I prefer to coat the foil18 on 'its upper face with a special compound which has the property of being highly cohesive when dry, for this purpose, I prefer to employ av compound consisting of rubber compound which is in a pasty or viscous condition, when mist, in which condition it is applied to thefoil. f

In order to apply the compound, I prefer to provide near the left end of reservoir or holder 22 in'which the compound 23 is placed;` as this compound is of a pasty and viscous nature, it is unnecessary to conine it on all sides, hence I simply provide an open hopper having 4a transverse vertical wall 24C and side walls 25, said wall 24: being disposed on the side of the hopper toward which the belt and foil pass.

As the belt 12 advances it carries the foil 18 through the bottom of the hopper; in Fig. 2 the uncoated foil is indicatedat 18 as it passes into the hopper, and the coated foil is indicated at 18a beyond the hopper. At this point, a bottom plate 27 is provided which connects the side rails 11a of the table. Near one end of this plate,'as indicated in two oppositely disposed pins 27a are for the purpose of Aholding in position an upper` for supporting a supply,-

the table a j the pockets 29 and the wiper is the full plate or float- This plate 28 is very thin, inch in thickness vand it is ing plate 28,. preferably lg formed with projecting y openings received loosely over the pins 27a. The belt 12 passes between this plate 28 and the bottom plate. The top plate 28 supports the reservoir 25 andthe compound 23. The plate 28 is provided on its upper face with two pockets 29 near its side edges and these pockets are forthe purpose of accumulating the compound in order to smear it upon` the lower sidesofthe margins of the foil 18, it being understood that the foil 18 passes on the upper side of the top plate 28. In this way the plate 28 floats between the belt and the foil web,.and prevents the belt from becoming smearedwith the cpmpound.

5 In order to facilitate the separation of the foil -web from the belt .as it advances, the forward or first edge 28c of the plate 28 which is engaged by the advancing web is brought to a knife edge. The other edge 28d of this plate is also brought to a knife edge to facilitate guiding the foil back onto the belt.

In the drawing the thickness of the belt 12 l and web 50 and foil 18 are represented greatly magnified for the sake of clearness.

t is understood however, backing web are about as thin as an ordinary sheet of paper.

The wall 24 as the table so at this point through Adjacent to does not extend down as far that an opening 30 is formed which the belt passes. this opening there is provided a wiper 31 preferably in the form of a doubled sheet of felt or similar flexible material which -is attached to the lower edge o an adjusting plate 32.. This plate 32 tends to swing toward the wall 24 by a spring connection 33 at its upper edge and may be adjusted away from the wall by a set screw .34.. By screwing 1n the set screw 34, the

amount of compound which is'smeared onto the vfoil is increased and vice versa.

-The .ends of this wiper 31 extend over width of the foil so that as the foil passes under the hopper its upper surface is completely covered with the compound, and furthermore, by reason ofl the fact that the that the foil andv compound collects in the pockets 29, thc

projecting margins 21 of the foil are coated on their under sides.

The reservoir 22 Vmay be .supplied from a small tank or mixer 35 directly over the reservoir and provided with a stirring device the shaft 36 of which is driven by a belt 37 which keeps the rubber compoun properly mixed. Then desiredva quantity of the rubber compound may be permitted `to flow into the hopper by opening the valve 38.

I permit the coatings on the foilkto dry before uniting this sheet with the other sheet or web. In order to accomplish this, the table 11 may be very long so as to give time for the moist compound to dry; however, I prefer to dry the coatings artificially, for which purpose -I prefer to rovide on the upper side of the table an air blast device preferably in the form of a longitudinally disposed air ipe 39, said air pipe having a plurality o orifices 40 on its under face which direct an air blast down onto the upper face of the coated foil, and in order to dry the coatings on the under side of the inarnins Q1, I prefer to iovide a similar air blast device in the fbrm of pipes 41 which extend along the sides of the table and which have openin 42 for directing an air blast onto the un er side of the margms.

In order to prevent any dislocation of the foil on the belt by reason of these air blasts and also to rodiice a high adhesion between the foil and the belt in order to relieve the foil, so far as possible, of tension throughout its length, and assist in drawing the same forward I prefer to meisten the belt 18; for this purpose I refer to rovide a sprinklin device 43 re erably disposed at the le t loop of the elt and arranged to spray water against the under run or outer surface of the belt, as indicated, the spray water being carried off by a suitable drain 44.

Adjacent the reservoir 22 I provide a guide 45 for the foil, said guide preferably consisting of a transverse plate having extensions 46 bent downwardly so as to lie near the side edges of the foil. The hopper or reservoir 22 is referably supported movably by means ofp brackets 47 and has rojecting udgeons 48 which are receive in the brac iets, as indicated most clearly in Fig. 3. The reservoir 22 tends to tlit by gravity on the axis of its gudgeons downwardly toward the wiper 31 which keeps the wiper in contact with the foil.

I provide means for guiding another web or backing sheet along over the foil web. For this purpose I prefer to provide a roll '19 which carries the backin sheet in the form of a web 50 which is rawn out and passes around the roller 14 and onto the roll 19. Preferably near the roll 49 I provide two presser rollers 51 and 52 the former of which is disposed above the-table and the latter of which is dis osed below the table. The web 50 which orms the roll 49 is preferably coated on one side with a compound which is highly cohesive when dry, preferably the said compound 9.8. The web 50 is extended so that its'coated side comes against the coated face of the foil web 18, as the two webs pass between the rollers 51 and 52 they are forcibly pressed together by the faces of the rolls so that the coating on the web 50 coheres to thecoating on the web 18. This web 50 is referably centrally superposed over the oil web and is of less width than the foil web so thatl the compound web or sheet formed by uniting the webs resents projecting or unbacked margins o foil.

For special reasons which arise in the formation of pouches from blanks cut from the compound web, I prefer to provide another coating of the compound on the exposed margins of the backing sheet. For this purpose I prefer to provide a coating device 53 which may have the form illustrated in detail in Figs. 5 and 6. In this instance the device simply consists of a plate 54 having two small wells or reservoirs 55 having openings 56 which come directly over the edges of the backing web 50. This plate 54 is supported between two arms 57 attached to a cross shaft 58 the ends of which are supported in brackets 59 on the side rolls 11 of the table. In other words, the bottom edge of the plate 54 simply rests by gravity on the upper face of the web 50 and as the web advances this results in smearing a coatin of the compound along the edges 50"l of t e web 50. This coating on the edges 50 I ermit to dry and this will occur if the ta le is-sufiiciently long, before the compound web passes onto the roll 19. However, I prefer to dry this coating artificially for which urpose I prefer to provide an air blast device which may be in the form of air pipes 60 similar to the pipes 39 and 41. The arrangement of these pipes is illustrated in Figs. 1 and 8, and the have orifices 61 on their under side which direct the air currents down on the coated edges 50,

On account of the fact that the coating compound employed is highly cohesive iinder pressure, I provide means for preventing the cohesion of the projecting margins of the compound sheet which is formed into a roll 19. For this purpose I prefer to provide, near the roll 19, a supporting arbor 62 for a supply roll 63 consisting of a protecting sheet or web 64 which is extended from the roll G3 and wrapped on the roll 19 simultaneously with the compound web. lhis protecting sheet 64 is as wide or wider than the compound sheet so that the coated edges of the foil cannot come in contact with each other. It also rotects the fiimsy projecting foil margins rom injury. It should be noted however, that this protecting sheet is not for the purpose of preventing the backedportions of the compound sheet from adhering to each other because the coinpound does not have adhesive properties when dry, and in order to bring about the union of two webs such as described, both the webs must be coated with the compound.

Special attention is called to the fact that when the webs pass between the rollers l and 52 their coatings are in a dry state and hence there is no tendency to squeeze out the coatings and smear the adjacent parts of the apparatus with the compound. This arrangement iesults in producing a compound sheet of very uniform qualities.

The web may be printed upon so as to form labels 65, before it is formed into a. supply roll as roll 49 and the printing on these labels may be alternately reversed as illustrated in Fig. t). lVhenpthe web is being fed into a pouch forming machine, the machine cuts the web on transverse lines (it so as to forni blanks with reversed labels; these blanks are then folded on the lines 67 so that the zone (i8 between the lines 67 forms the bottom or lower end of the pouch. The. projecting margins 69, of the blank ai'e then folded upon each other so that the coatings of the overlapping margins come together, whereupon simply by pressure, the coatings cohere and unite the parts of the scam so as to foi-in a substantially air-tight connection.

Special attention is called to the feature ot' forming a compound sheet into a roll from which the material is delivered directly into the pouch forming machine. T his arrangement avoids the necessity of feeding small blanks individually into the pouch forming machine. On account of the foil embodied in these blanks they are handled with diliiculty by machinery; however, when they are in the form of a roll they can be drawn as a web into the pouch forminor machine which cuts the blank from the we at the instant that the pouch is to be formed.

It is understood that the embodiment of my invention as described above is only one of the many embodiments or forms the invention may take and I do not wish to be limited in the practice of my invention either in the process product or apparatus, nor in my claims to tie process product or apparatus to the particular embodiment set ioitli.

What I claim is:

1. The method of forming a compound sheet which consists in advancin a continuous web. applying a moist dry y cohesive compound coating to the face of said web, drying said coating. advancing a second continuous web siiperposed over said first web and having a face with a dry coating of the said compound, arranged with the coated faces of said webs adjacent to each other, and then pressing said webs together while said coatings are dry to unite said-webs by the drv cohesion of said coatings.

2. The* method of forming a compound sheet which consistsin advancing a contin-v uous web of foil, applying a moist dryly cohesive compound coating to the face of said web, drying said coating, advancing a continuous backing web having a face with a dry coating of the said compound and arranged to koverlie said foil web, with the coated faces of said webs adjacent to each other, and then pressing said webs together while said coatings are dry to unite said webs by the dry cohesion of said coatings.

3. The method of forming a compound sheet which consists in advancing a continuous web of foil, covering one face of said foil web with a moist dryly cohesive coinpound coating, applying said moist coinpound coating to the margins of said foil web on the other face thereof, advancing a, continuous backing web havino` a face with a coating of said compound and arranged to overlie substantially centrally said foil web whereby the said coated margins are left unbacked and projecting beyond the edges of said backing sheet, drying' said moist coatings, and then pressing said webs together while said coatings are dry to effect dry cohesion of their coatings and form the compound sheet.

4. The method of forming a compound sheet which consists in advancing a continuous web of foil, covering one face of said foil web with a moist dryly cohesive compound coating, applying said compound coating to the margins of said foil web on the other face thereof, advancing a continuous backing web having a face with a coating of said compound and arranged to overlie substantially centrally said foil web whereby the said coated margins are left unbacked and projecting beyond the edges of said backing sheet, dryino' said coatings, and then pressing said webs together while said coatings are dry to eii'ect dry cohesion of their coatings aiid form the compound sheet, and applying said compound to the margins of the exposed face of said backing web.

The method of forming a. compound sheet for producing pouches which consists in advancing a continuous web of foil, covering one face of said foil web with a moist dryly cohesive compound coating, applying said compound coatin to the margins of said foil web on the ot er face thereof, advancing a continuous backing web having a face with a coating of said compound and arran ed to overlie substantially centrally said oil web whereby the said coated margins are left unbacked and projecting bcyond the edges of said backing sheet, dryin said coatings, and then pressing said we s together while said coatings are dry to effect dry cohesion of their coatings and form the compound sheet, and applying said compound to the margins of the ex"- posed face of said backing web, coiling the compound sheet into a roll, and simultaneously ceiling a protecting web into the roll between the coils of the compound sheet to prevent contact between the coated coils of said projecting margins.

ing said coatings, and then pressing said webs together while said coatings are dry to effect dry cohesion of their coatings and i A form the compound sheet, applying said compound to the margins of the exposed face of said backing -web, coiling the compound sheet into a roll, and simultaneously coiling a protecting web into the roll be- '.tween. the coils of the compound sheetito prevent contact between the coated coils of said projectingmargins and to reinforce the said margins. j

` 7. The method of forming a compound sheet on a continuously advancing carrier belt, which consists in advancing a carrier be1t, moistening the surface of the belt, ap- (plying ajweb of foil to the belt so as to adhere to the moistened surface thereof, applying a moist rubber compound coating to the face of said foil web, advancing a continuous backing web having a coating of4 the said rubber compound and arranged to overlie said foil web with the coated faces of said Webs adjacent to each other, and then uniting said webs by pressing the same together to effect the cohesion of their coat.

8. The' method of forming a compound sheet which consists in advancing acontinuou's web of foil, applying a'moist' dryly cohesive compound coating to the face of said web, drying said coating, advancing a continuous backing web having a face with a dry coating of the said compound and ar- Xranged to overlie said foil web, with the Ocoated faces 'of said Webs adjacent to each other, andv then pressing said webs together while said coatings are dry to unite said Webs bg" the dry cohesion of said coatings. 4 9. T e method of forming a compound sheet which consistsin advancing a continuous web of foil, applying a moist dryly cohesive rubber compound coating to the face of said web, drying said coating, advancing la continuous backing' web having a face with a dry coating of saidcompound and arranged to overlie said foil web with the coated faces of said webs adjacent to each other, and then pressing said webs together while said coatings are dry to unite said webs by the dry cohesion of said coatings.

. 10. ,The method of forming a compound sheet which consists in supporting a web of frail foil on a carrier web and moistening the supporting surface of the carrier to cause temporary adhesion of the foil thereto throughout its area, covering said foil web 'with a moist dryly cohesive compound coating, drying said coating, advancing a backing web having a dry coating of said compound arranged to overlie said foil web with the coated faces of said webs adjacent,-

and pressing said webs together while dry to ,unite the same by dry cohesion of said coatings 11. In an apparatus for forming a con'ipound sheet, in combination, means for advancing a continuous 'web,.means for applying thereto a coating of a dryly cohesive substance, means for artificially drying said coating, means for advancing a second. web

superposed over said first web, and having a dry coating of said dryly cohesive substance disposed adjacent to the coating on said first web, and means for'pressing said webs together to unite the same by cohesion of said' coatings in adry state.

12. In an apparatus for forming a'compound sheet, in combination, means for advancing a continuous web, mearis for aplplying thereto a moist`coating of a dryly cohesive substance, 'm'eans for drying said coating, means for advancing a second web' n superposed over said first web, and havin a dry coating of said dryly cohesive sub stance disposed ,adjacent to the coatingon said first web, and means for pressing said websftogether to unite the same by cohesion` offsaid coatings in a dry state.

13. In an lapparatus for forming a com-- pound sheet, in combination, means for advancingLa continuous Web, means for applying thereto a coating of dryly cohesive Substance, means for artificially drying said coating, means for advancing a Scondwe'b 'superposed over said rst web, andhaving a dry coating of said dryly cohesive sub- Stance disposed adjacent to the coating on `said first web, and rollers between which said-Web passes for pressing said Webs toaov gether to unite the same by cohesion of said l coatings' in a dry state.

14. In an apparatus for forming a compound sheet, in combination, an endless belt conveyer arranged to support and advance a VIcontinuous web, means for applying` a moist dryly cohesive coating to`- said web,

means over said conveyer for drying said coating while advancing therewith,'means for .guiding a second web superposed over said rst web and having a dryly cohesive coating adjacent said first Web, and means for pressing said Webs together while said coatings are dry to unite the same by the cohesion of s'aid coatings. Y

15. In an apparatus for forming a compound sheet, in combination, an endless belt conveyer arranged to support and advance a continuous web, means over said conveyer for applying a moist dryly cohesive coating to said web, an air blast device for drying said coating while advancing therewith, means for guiding a second web superposed over said first web and having a dryly cohesive coating adjacent-said first web, and means for pressing said webs together While said coatings are dry to unite the same by Y web, and means for pressing said webs together while said coatings are dry to unite the same by the cohesion of said coatings.

17. In an apparatus for forming Aa compound sheet, in combination, an endless belt conveyer arranged to support and advance a continuous web, means for applying a moist dryly cohesivecoating to said web, means for drying said coating, means for guiding a second web superposed over said rst web and having a drylycohesive coat-r ing adjacent said first web, means for pressing said webs together While said coatings are dry to unite the same by the cohesion of said coatings, means for applying -a moist dryly cohesive coating to the margins of said second web on the upper face thereof, and means for drying said last coating.

18. In an apparatus for forming a compound sheet for producing pouches, in combination, a continuously moving carrier for supporting and advancing a web of foil, means for covering one face and the margins of the opposite face thereof with coatings -consisting of a moist dryly cohesive compound, .means for drying said coatings, means for guiding a backing web of narrower width than'l said first web superposed substantially centrally on said foil web and having'a dry dryly cohesive coating of said compound, means for pressing said webs together While said coatings are dry to unite the same by the cohesion of said coatings and thereby form a compound web, means for coiling said compound web into a roll, and means-for simultaneously coiling into said roll a protecting web lying between the coils of said compound web and preventing adhesion between' the adjacent coils thereof.

19. Inian apparatus for forming a compound sheet in combination, an endless belt conveyer, means for guiding a web of foi] i Wider than' said belt so as to be supported and iadvanced by said belt, means for moistcning said belt to cause adhesion of said' foil thereto, means for applying moist dryly cohesive coatings respectively to the upper face of said foil web and to the under face of the margins thereof, air blast devices for .directing an air current cnt o said coatings to dry the same, means for guiding a back ing web along said belt superposed s over said foil web and having a dry dryly cohesive coating adjacent said foil web, means l for pressing said webs together to unite the same by the cohesion of their coatings, means for applying a moist dryly cohesive coating on the upper face of said backing web at the margins thereof, and an air blast device for drying said last named coating.

20. In an apparatus for forming a compound sheet in combination, an'endless'earrier belt, means for guiding a web of foil so as to lie upon said belt and be advanced thereby, a sprinkler device for sprinkling water on said belt to meisten the same and increase the adhesion of said foil thereto, a reservoir disposed over said web adapted to contain la moist dryly cohesive compound to form a coating on the upper side of said web, and having means'for applying a coating of the said compound to the under side of the margins of said web, means for drying the coatings,means for guiding a backing web superposed over said foil web and having a dry dryly-cohesive coating adjacent said foil web, and` means for pressing said webs together to unite the same by the cohesion of said coatings.

21. The method of forming a compound sheet on a continuously advancing carrier belt, which consists in applying a web of frail metal foil of greater width than said belt thereto so as to be supported and advanced by said belt and disposed centrally on said belt whereby the margins of said lfoil web project beyond the edges of said belt, a plying a moist coating to the under conveyer, means for guiding a web of foil o greater width than said belt so as to be disposed centrally upon's'aid belt so that the supported and advanced by said belt and f margins of said `foil web pro'ect beyond the 'l -edges of rsaid belt, means or applying a moist coating to the under side of the said margins of said foil web, means for directing an air blast upon said coated margins to I dry said coating, and means for molstening said conveyer belt to cause temporary adhesion of said foil Web and prevent dislocation thereof by said air blast.

23. In apparatus for forming a ,compound sheet, in combination, an endless belt-conveyer, means for guiding a web so as to be advanced by said belt, means for applying a compound to the upper face of said web as the belt advances, and means disposed between the belt and the Web for preventing he application of said compound to said elt.

24. In apparatus for forming a compound sheet, in combination, an endless belt conj veyer, means for guiding a web so as to be advanced by said belt, means for applying a com ound to the upper lface of saidv web as the elt advances, and means disposed be? tween the belt and the web for preventing the application of said compound to said belt, means for guiding another web onto said first web, and means for pressing the same together.

25. In apparatusfor forming a compound A sheet, in combinat1on, an endless belt coni'eyer, means for guiding a web so as to be advanced by said belt, means for applying a compound to the upper face of said web as the belt advances, and a plate disposed between the belt and the web for preventing the application of said compound to said belt, said plate being fixed against longitudinal movement.

:26. In apparatus for forming a compound sheet, in combination, an endless belt conveyer, means for guiding a web so as to be advanced by said belt, means for applying a compound to the upper face of saidyweb as the belt advances, and a plate disposed between the belt and the web for preventing the application of said compound'to said belt, said plate having pockets in the upper face thereof for collecting said compound to smear the same on the "under side of said Web. i

In testimony whereof I have hereu`nto set my hand in presence of two subscribing witnesses'.

J ONATHAN PETERSON. Witnesses y H. BROOKE, Jr., I-,IERMAN J. ROEHN.

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