US1350410A - Method and apparatus for assembling and attaching tiling - Google Patents

Description

l w. 1. KENT. Y M THOD AND APPARATUS FOR ASSEMBLING AND ATTACHING TILING. -1,350,410.

APPLICATION FILED DEC.24. |918.

f w v L.. i n.. IIIIIIIIIIIIIIII I rllllllllllllll I 1|. ...II TIL n n uw llllllllllllllllllllllll I 5f N I I 'WITNESS 'amm Mh 2f Mam/ I w..1. KENT. MET'HOD AND APPARATUS FOR ASSEMBLING AND ATTACHING TILING.

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INVENTOR By .Ahforncys, l rL-cwm, Junk U3/UP:

WITNESS fw wl 1| r'noo AND APPARAus 'Fon AssEMBuNG Ann AmcHlNG TILING.

APPLICATION FILED DEC. 24.1918.

1,350,410. I Patenteamlg. 24,1920.

s SHEETS-SHEET 3.`

`v u y By Afmeys,

W. J. KENT.

METHOD AND APPARATUS FDR ASSEMBLING AND ATTACHING TILING.

A l APPLICATION man 0E,c.24,19|a. 1,350,410, Patented Aug. 24, 1920.

T "INVENTOR 1 By Attorneys, fr" lx' 'MMMX .W. l. KENT.

` METHOD AND APPARATUS Fon AssEMLING AND ATTAcmNG TlLmG.

` APPLICATION FILED DEC. 24| 1918. 1 ,350,410. Patented A118. 2,4, 1920.

5 SHEETS-SHEET 5.

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vUNITED STATES PATENT OFFICE.VL

WILLIAM J. KEN'I 0F BROOKLYN, NEW YORK, ASSIGNOR TO NEWVYORK BELTING- &

PACKING COMPANY, A CORPORATION OF NEW YORK.

METHOD AND APPARATUS FOR ASSEMBLING AND ATTACHING- TILING.

Specification of Letters Patent. Patented Allg. 24:, 1920.

Appiicatin ined' December 24, 191s. semi No. 268,197.

To all whom t may concern Beit known that I, WTILLIAMJ. KENT, a

citizen of the United States of America, residing in the borough of Brooklyn, city and,

purpose is to afford a method that will lend l itself readily to this result, and to provide automatic machinery to carry out such `improved method. I V

In times past, products made from tiling, such as described, Vhave been produced largely vby hand, involving a very slow, laborious and expensiveprocess, which is entirely done away with by my invention. By 'y the present method, I aim to make it possible to handle large numbers of rubber and other tiling-expeditiously and entirely by automatic mechanism, andfurther to effeet a tight and securev joint rbetween the meeting edges of the 'various tiles.

I accomplish this by feeding the tiles, preferably in series or groups, of four for instance, transversely with respect to a support or table upon which the sheet body, to which the tiles are to be attached, is arranged, aiid after a sufficient'number of tiles have been fed transversely of the support to complete a row, they are caused to move toward said sheet body, or longitudinally of the support, being forced tightly against the adjacent edge of the sheet body which is preferably held tightly duringA such operation. T he tiles may be previously sup plied with cement or other attaching medium applied to their severaliedges, and as soon as the pressure has been sulicient to' cause them to adhere to the sheet body, the latter is moved lengthwise of the support with the tiles attached and now forming a part of the body. The sheet body is then in position to permit feeding in of another row of tiles, and the operations can be repeated until the slieetbody is of any length desired, after which it is ready to be attached to a suitable base or backing, vulcanized if desired, cut into suitable shapes and otherwise finished according to-wellknown methods of'manufacturing floor-coverings or mats of this type. Such a method can be used in connection with tiling of square, triangular, hexagonal or other configuration.

The mechanism by which I prefer to carry out the invention comprises generally a support or table which receives the sheet body as Vit is finished `and permits it to be fed thereon, andarranged above the support to cooperate with the sheet body are sheet retaining means which normally hold the sheet rigidly in one position and are intermittently operated to release 'it and permit its being fed along after a row of tiling has `been attached. The tiles are arranged in magazines, preferably with cement already applied to their edges, andA at regular intervals an ejector forces out tiles from vthe dierent magazines and moves them into the path of a tile feeding means. The latter preferably consists of a reciprocatory member which forces the tiles in a direction transversely of or across the support previously mentioned. After having pushed one series or group of tilesforwardly, the tile feeding means is retracted in therear of a second group 'of tiles which the supplying mechanism furnishes. After this, the feedingmeans again moves forwardly, pushing the last group of tiles into engagement withthe previous group, and moving them all a corresponding distance forwardly. rIhis operation continues until sufficient tiles vhave been fed in to complete a row corresponding to lthe width of the sheet body along the attaching edge. Immediately following this, there' comes into operation a sheet attaching and feeding mechanism which includes a follower that engages the' adjacent edges of the fed-in tiles and initially forces them against the adjacent edge of the sheet body, while the latter is retained, preferably fixed in position. The edges of the fresh tiles are thus secured to the sheet body and to each other, and thereupon the sheet body is released and the follower is again moved lengthwise of the support to .feed the sheet along into position where 'it can receive a second row of tiles. The follower is finally retracted to its normal position and the parts are then ready for a repetition of the operation just described. e

To these and other ends, the invention consists in certain improvements and coming pointed out in the claims at the end of the specification.

In the drawings:

Figure l is a plan View of an apparatus which illustrates one practical adaptation of the invention, and shows a preferred form of mechanism for carrying out the method described;

Fig. 2 is a side elevation of the mechanism appearing in Fig. l;

Fig. 3 is a plan view enlarged, and partially in section, showing the tile vfeeding means and the operating devices therefor; Fig. 4 is a sectional view on line t-l of Fig. 3; Y Fig. 5 is a sectional view on line 5-5 of Fig. 3, and showing the relative position ofthe parts as a new supply of tiles is being fed in; Y

Fig. 6 is a sectional view taken substantially on line 6-6 of Fig. l and illustrating the relative positions of the parts after the alining guide is withdrawn land the follower has completed its initial movement;

Fig. 7 is a similar view showing the position of the parts after the pressure niembers have been raised to release the sheet and the follower has completed its linal. movement;

Fig. 8 is a similar view showing the next step in the operations following Fig. 7, the

follower having been retracted and the alining guide restored to normal position;

Fig. 9 is a sectional view taken generally on the line 9 9 o f Fig. l;

' Fig. 10 is an end elevation of the apparatus; and

Fig. 11 is an enlarged sectional view in detail of one of the tile magazines.

I have illustrated one practical embodiment of the invention, by which the novel method described can be carried out, al.- though other structures may readily be designed to accomplish the same general purpose. In the mechanism shown, A designates the support or table for the sheet body or mat, which is formed in successive steps by the attachment of successive rows of tiling, after each of which the sheet body is fed lengthwise of the support. The tiles are preferably fed transversely on the support A, and diagonally with reference to the sides of the completed sheet body.

In the form illustrated, it is intended to use square tiles, and to .feed them in at an angle of approximately 45 with reference to the sides of the completed sheet body. These, however, areminor details and are not essential to the invention, which is likewise applicable for use with triangular, hexagonal, or other contours of tiles, and the latter may be fed 'transversely of the sheet body at various angles other than 45.

The mechanism shown is in accord with what I have found to be good practice, and I will now describe the tile supplying mechanism and feeding means.

Tile supplying mechanism and die feed/ng i The tiles, which may be of rubber or other libroussubstance, are positioned in theseries of square magazines B, four of such magazines being shown. The tiles are arranged in vertical stacks in the magazines and at regular intervals, a tile is ejected from each magazine, such tile being conveniently, although not .necessarily the lowermost one, as in the present disclosure. To this end, I employ a tile supplying mechanism consisting of a reciprocating ejector or slide C (Figs. l, 23 and slideable upon the supportA and constructed so as to pass through openings provided at the bottoms of the magazines B. The ejector C is connected by a link D with an arm E which is rotatatively mounted upon post F. The arm E also carries a tail-piece G which is slotted or cut away at II (see Fig.

for a purpose presently to appear.V

After the tile supplying mechanism forces the tiles from the magazines aforementioned, the tile feeding means comes into operation and pushes the tiles across the support A. .This feeding means, shown in the present embodiment of the invention, comprises a' slide or plunger I which travels between guides J and K and is connected by a link L with' an arm lll, the latter being rotatively mounted on the post F already described. N designates a driving lever which. is fiXedly mounted on the post F and carries a sliding pin O adapted to engage a corresponding opening in the arm M and lock the latter for movement with the post F. rIhe arm M can thus be released from operation quickly by removing the pin The driving lever' N and the post F are operated by means of a reciprocating rack F which engages a toothed segment Q, keyed on the post F. The reciprocating rack I has pivoted thereto va connecting rod Il., the opposite end of which is lioined to a lever S pivotally mountedV upon a support T and carrying a rollerU which engages a cam slot V in the continuously `rotating cani lV. The cam slot V is so formed as to effect eight reciprocations of the connecting rod R and rack l), after which the rack lis held in its outermost position by the dwell portion X, and this likewise serves to maintain the tile feeding means, or slide I, in its retracted position7 as shown in Fig. l.

During the normal operation of supplying and feeding the tiles, it is desirable that the slide C be operated, to eject the tiles from the magazines B, after the slide I is retracted. In order to accomplish this.y the `the varm M then carries with it the tailpiece G, causing the arm E to rotate about the aXisF, and thereby to movethe slide C forwardly and eject a series of tiles into the path of the feeding slide'I. On' the return movement, the ejector C is first retracted to the position shown in Fig. 3,whereupon the dog Z is movedout of the notch H by vahead all' the tiles means of rollerA riding outfof the recess or cut-away portion B, and the feeding slide I then moves forwardly, V'engaging the tiles C Vwhich have previously been forced into thepath'of the slide I byI ejector vand fpushes them ahead 'to the position shownin Fig. rlhis operation likewise forces which are in the lpath of the slide I.

Infthe arrangement shown, Iv have pro-` vided for supplying the tiles in Vgroups of four each, although this Vnumber may be varied to suit different requirements and under `some conditions, it ymay be desirable to supply the tiles individually; The presv ent machine is -designed to successively supply` and feed forwardly eight 'groups of four tiles each, giving axtotal` width of thirty-two tiles which are. pushed transversely of the support at an `angle of ap-V proximately 450 to the sides ofthe sheet body, as shown in Fig. l, until the farther- Y' most tile has reachedthe opposite side of the sheet body. At such time, the tile'supplying and feeding instrumentalities are stopped for a givenperio'd to permit of attaching the fed-in tiles tothe sheet body, and feeding the latter along one `step on the support. f

According to the Apreferred method of operation, the tiles are provided with cement applied to theirseveral edges, before'being positioned inthe magazines B, and asthey are fed from the magazines bythe ejectorC,

there `may be a tendency forthem 'to stick to theV ejector andbe drawn backon the return stroke of the latter.Y To prevent this,

I .provide each magazineppreferably, with a. spring follower D (seeV Fig. y11), supported at the front thereof andimmediately overlying thecorresponding tile C after it has been moved from the magazine. The pressure of the spring E which controls the follower D is suc'hlas to hold the tile with suflicient force to prevent its being drawn back into the magazine,vand at the same Ytime,permit the slide'Ito feed the The roller A engages the adjacent manner that will be described later,

T le guiding mechanism, and sheet attaching md feeding mechanism.

During the feeding vof the tiles, as previously described, they are held in line by an -alining guide F along one edge, which eX- tends across the support or table, and when in normal position is slightly above the same (see Figs. 5 to S, inclusive). On their lopposite edges, the tiles are engaged by the adjacent surfaces G of a follower H', which constitutes the essential part of the sheet `.attaching and feeding mechanism. The

follower H is provided with an extension or flange I, which overlies the tiles and prevents their lbuckling as they arev fed loosely across the support. After an entire row of tiles has been fed into position for attachment to the sheet body, the alining guide F is automatically lowered to a point {iush with or beneath the support A, andthe follower H is then moved laterally to force the tiling tightly against the sheet body and Aattach it thereto.

The operations just referred to are' illustrated by Figs. 5 and 6, respectively, and vduring these steps, the sheet body--whic'h I will designate as Jis held rigidly against the table and prevented from movement. After the tiles lChave been forcedtightly against the sheet body J', as shown in Fig. 6, they are held inthis' position fora period 1 lsuflicientto cause the cement to-unitethem Then the sheetbody vis released in and the followerA H- againmoves laterally to force the sheetbody, which now includes the tiling C-, along the table vand out of the path of the alining guide F, which is then tightly.

again elevatectandf the parts made `ready 'to receive ai newisupply oftiles. i

To accomplish thepurposesj ust described,

the? follower lil V.is of the form shown in Fig. l,extendingpreferably across the support A in a generally diagonal direction,and slides on a' gui'de K. The followerH is governed in its movement by .a block L which is `adj'ustably associated with the follower by meansof screws. M on the latter.

The screws M canfbe adjusted in the lugs L. The latter is connected with a rollerV which travels 1n a cam'slot O in a continuously rotating cam wheel P', as shown inFigsffl and 2. The cam;slot O is ofsuch formation as to lcausethe follower H `to havean intermittent lateral travellength-V wise of the support A', the first part of the movement beingsufficient tov move the fedin VtilesA againstthe sheet body. The fol-r "lower then comesto rest in thispositin vfor a sufficient period, after which it again travelsfforwardly to feed the sheet body `beyond the alining guide, andthe follower is thenretracted to its normal position, 'The N :and engage opposite sides ofv the block iso nuts, as shown in F ig. 8;

follower is held in its intermediate position by the dwell portion Q of the cam, while the part R serves to move the follower to its extreme outward limit, after which it is `retracted to normal position.L

.strumentality of downwardly projecting posts X and suitable'securing collars and Thel extension bars W are cut away at their ends, as shown at Y', and have cam portions Z' which co operate with corresponding inclined por- Y tions A2 on the plungers S'. In the normal position as shown in Figs. 5 and 8, the plungers S' are free to move upwardly into the cut-away portion Y' of the bars IV. This permits the alining guide to project 'above the support A. As the follower'H' is moved laterally, the cam surfaces Z engage the cooperating surfaces A2 on the plungers and force the latter downwardly, as shown in Figs. 6 and 7 thereby holding the alining guide beneath the surface of the support during the operation of attaching the tiles to the sheet body and feeding them lengthwise of the table. It is not until the follower H is retracted to its normal position, as shown in Fig. 8, that the alining guidev is again permitted to assume its uppermost position, and the parts are then ready to receive another supply of loose tiling.

' I Sheet retaz'm'ngpmea/ns.

During the operation of attaching theV fed-in tiles to the sheet body, it is preferred to holdthe body rigidly in order that the necessary pressure can be exerted against it, and this may be accomplishedby sheet re'- taining means, such as I have employed,

and which includes gripping-members that engage the side edges of the 'sheet and pressure members engaging the upper surface of the work end or attaching end of the sheet. -The pressure members referred to consist of spring plungers B2, preferably one being provided for each` tile along the work edge of the sheet body. Each plunger vB2y has a base C2, which engages the surface of thesheet and is guided by Va pin D2 engaging an opening E2 in the carrier F2 on which the plungers are mounted. vEach plunger is held in position by a threaded collar B2 Y and arranged between the collar G2 and a shoulder H2 on the plunger, is a spring I2 which tends to force the plunger downwardly, the latter being limited in its downward movement by the nut J 2. By this arrangement, when the carrier F2 is moved downwardly .toward the sheet body, the

Ybrackets N2.

wheel A3.

vwhich would otherwise cause it to move lengthwise of the support A. Then the carrier is moved to its lowermost position, the parts are arranged as shown in Figs. 5 and 6. The necessary intermittent movements of the carrier upwardly and downwardly are effected in the following manner.

The endsof the carrier are mountedon vertically movable posts K2 (see Figs. 2 and 9), and these are pivotally connected to levers L2 which are fixed on the rock shafts M2, the latter being supported instationary The rock shafts M2 also have fitted thereon inwardly extending levers O2 which are connected at their adjacent ends and provided with a roller P2 engagingka cam-way Q2 in the continuously rotating:` cam-wheel R2. The cam-way Q2 is so formed that the pressure members are held in their downwardpositions during the larger part of the rotation of the cam-wheel, and are elevated only for a short period, which is.y sufficiently long to permit the sheet bodyA to be fed lengthwise vof the table the width of one row of tiles, after the latter have been attached. Y Y i y In addition to the pressure membersjust i95 described, the sheetbody is also held byl gripping members consisting of bars S2 which engage the side edges ofthe sheet and are serrated or angular to fit the corresponding corners of the tiles. The bars S2 are slidable l100 Y back and forth on the 'support A, as shown in Fig. 5. Each bar S2 is provided with posts T2 which proj ect through slotted openings U2 in the support A. The posts T2 are movable back and forth in slots U2 to ad? 105 vanee and retract the locking bars S2toi ward and from thesides of the sheet body.

To this kend, the lower ends of the posts-T2 y are connected to angle levers V2 (see Fig. l), v

which are pivoted on stationary bearingsxno.

and connected by links W2 with a block X2' (see Fig. 2). The block X2 carries a roller Y2 which engages a cam slot Z2 in the cam- The cam-wheel A3 rotates continuously and the cam-slot Z2 is soformed 11,5

as to operate the block X2 and links W2 to Vwithdraw the side bars S2 simultaneously with the elevation of the already described.V

The cam-wheels W, P", R2 and A3 are all .120

pressure lmembers j `ixedly mounted on a common driving shaft l?)s which` carries a worm-wheel C3. The latter is driven by a worm D3 mounted on'a shaft carrying a gear E2 which is'driven by a pinion F3`on the motor shaft. 125

Operation.

The parts being in the positions shown in Figs. 1 and 5, the slide I moves inwardly, feeding the tiles in front of it, and is thenlSO retracted, after which the ejector C forces another'seres of tiles from*` the magazines. r1`his alternate operation of the ejector and feeding slide continues until the loose tiles extend entirely across the width of the sheet body, assuming the position shown in Fig. 5. l/Jhen the row of tiles is completed, the operation of the supplying and feeding devices stops, the alining guide is actuated downwardly, and the follower H' is moved to force the tiles against the sheet body, as

shown in Fig..6. This presses the tiles'together and secures them tightly by the cement which has already been applied to the edges. Immediately thereafter, the pressure members C2 are elevated, and the gripping members S2 are withdrawn laterally, freeing` the sheet body, and the follower H again moves laterally still farther forcing the sheet body to the position shown in Fig. 7. The follower H is then retracted to its normal position, the members S2 returned, and the alining guide F elevated to its normal position and the parts are ready for a repetition of the operation. It will be understood that the mechanism shown and described constitutes only one embodiment of my invention, lbeing that one adapted'to` assemble square tiles in oblique order. The invention is subject to modification or rearrangement according to the particular use required, varying with the shape of the tiles, the number in each group, the angle of feeding, and other conditions, all as will be understood by mechanics or engineers.`

After the tiles have been assembled in sheet form they may be attached in any suitable manner to a base or backing and otherwise finished according to well-known methods of manufacture. That I claim is 1. A method of assembling and attaching tiling to form sheets or mats, consisting in feeding tiles having adhesive sides edgewiseV and transversely-with respect to aY sheet body until a row of required length is completed,

forcing said tiles edgewise against the adja- A cent edge of the sheetto secure them thereto, and feeding the sheet longitudinally' to make room foranother row of tiles. i

2. A method according to claim l, characterized in that thetiles `are' fed transversely of the sheet body "in successive series or groups positioned end to end;

3. A method according to Vclaim l, characterized in that the tiles are fed transverselyl of the sheet body ona diagonal lineV with reference to the side edges of the sheet body.

4. A method according to claiml, characterized in that the tiles are fed transversely of the sheet body at an angle of approximately forty-five degrees to the side edges of the sheet body.

" 5. Mechanism for assemblingand attachof a sheet support,'tile feeding means operat-v ing lto feed Vtiles transversely of the support, and tile attaching and sheet feeding mechanismacting to force the tiles against a sheet body and to feed the sheet lengthwise of the support.

6. Mechanism according to claim 5, characterized further by sheet Vretaining means which holds the sheet body while theV tiles are forced against and secured to it and thereafter automatically'releases the sheet.

7. Mechanism according to claim 5, in which the tile attaching andV sheet feeding mechanism imparts an intermittent movement to the tiles, to first force and hold them against the sheet body and thereafter move the sheet longitudinally of the support.

8. Mechanism according to claim 5, characterized further by tilesupplying mecha.- nismrwhich intermittently positions a plurality of tiles in thev pathof the tile feeding means. n j

' 9. Mechanism according to claim 5, characterized further by tile supplying mechal moves them into the path of said reciprocatory member, the latter movingv at right angles to said ejector and alternately toward and from a common point.

l1. Mechanism according to claim` 5, in which the tile feeding means comprises a reciprocatory member,` and characterized further Vby tile supplying mechanism comprising a series of vertical tile magazines, and a reciprocatory ejector which intermittently engages tiles in the magazines and moves them into the path of said reciprocatory ,member, the `latter moving at right angles to said ejector and alternately toward and from a common point, and operating instrumentalities which initially retract said reciprocatory member and thereafter move the ejector forwardly to supply a series of tiles into position to be engaged when the reciprocatory member again `moves forwardly.

12. Mechanism accordingto vclaim 5, in which the tile attaching and sheet feeding mechanism comprises a follower extending across the support parallel tothe adjacent edges of the fed-in tiles, and operating instrumentalities acting to advance the follower lengthwise of the support.

. 13. Mechanism according to claim v5, in which the tile attachingaand sheet feeding mechanism comprises al follower extending across the support parallel to the adjacent edges of theV fed-in tiles, the follower having a projecting flange coextensive lengthwise therewith and adapted to overlie the row of fed-in tiles, and operating instrumentalities acting to advance the follower lengthwise of the support. 1

14. Mechanism according to claim 5, in which the tile attaching and sheet feeding mechanism. comprises a follower extending across the support parallel to the adjacent edges of the fed-in tiles, the follower having a projecting flange coextensive lengthwise therewith andv adapted to overlie the row of fed-in tiles, and operating instrumentalities acting to first advance the follower so as to force and hold the fed-in tiles against the sheet body, and thereafter move the entire sheet lengthwise of the support.

15.7Mechanism according to claim 5, inV

' which the tile attaching and sheet feeding mechanism comprises a follower extending across the support parallel-to theV adjacent edges of the fed-in tiles, and operating instrumentalities acting to first advance the follower so as to force and hold the fed-in tiles against the sheet body, and thereafter move the entire sheet lengthwise of the support.

16. Mechanism according to claim 5, characterized further by sheet retaining means, consisting of gripping members engaging the side edges of the sheet vand pressure members engaging the upper surface of the work end of the sheet, and operating instrumentalities acting automatically to intermittently elevate said pressure members and withdraw said gripping members to release the sheet.

17. Mechanism according to claim 5, characterized further by an alining guide against which the tiles are fed, and devices acting to withdraw said guide from the path of the tiles previously to the operation of said sheet attaching and feeding Y mechanism.

18. Mechanism according to claim 5, characterized further by tile supplying mechanism which positions tiles in the path of the tile feeding means.

kmovement, and means for preventing bucktomatically to intermittently elevate said j pressure members and release the sheet.

21. A machine for assembling tiling including in combination means'for supplyingv tiles, means for moving the tiles bodily sidewise to form a unit of the required length, and means for shifting the resulting unit of tiles in a direction transverse the direction of the bodily sidewise movement whereby the tiles may be assembled in sheet form.

22. A machine for assembling tiles including in combination means for supplying tiles, means for moving the tiles edgewise to form a unit of a required length, means for guiding the tiles during their edgewise movement, and means for shifting the units of tiles in a direction transverse the directionof their edgewise movement.

23. Amachine for assembling tiles including in combination means for supplying tiles, means for moving the tiles edgewise to form a unit of a required length, and mear-.s for shifting a unitof tiles in a ydirection transverse the direction of their edgewise ling of the tiles in a unit.

24. A machine for assembling tiles including in combination means forV supplying tiles, means for moving the tiles edgewise to form -a -unit of the required length, means for shifting each unit of tiles in a two stage movement in a direction transverse the direction of their edgewise movement, and means for temporarily holding the sheet during the first stage of each units movement in order to squeeze the preformed sheet and the unit together.l

25. A machine for assembling tiles including in combination means for supplying tiles, means for moving the tiles edgewiseto 1 form a unit of the required length, means for shifting each unit of tiles in a two stage movement in a direction transverse the direction of their edgewise movement, and means for temporarily holding the sheet during the first stage of each units movement in order to squeeze the preformed sheet and the unit together, said last named means including devices for applying pressure to the sides and faces of the preformed sheet.

26. A method-of assembling and attaching tiling to form sheets, consisting in applying adhesive to the sides of tiles, feeding the tiles edgewise and transversely with respect to a sheet body until a row of the required lengthv is applied, forcing said row of tiles edgewise against the adjacent edge of the sheet in order to secure it thereto, and feeding the resulting sheet longitudinally to make room for another row of tiles. Y Y

27. A niethod of assembling polygonal tiling consisting in feeding tiles successively to Y form rows of a desired length, shifting each row of tiles after its formation ina direction at an angle to a side of the individual po-130 lygonal tiles, and subsequently attaching a backing to a sheet of the thus assembled tiles.

28. A method of assembling polygonal tiling, consisting in feeding groups of tiles successively to form units of the desired length, shifting each unit of the tiles after its formation in a direction at an angle to a side of the individual polygonal tiles, and subsequently attaching a backing to the resulting sheet.

29. A method of assembling polygonal tiling consisting in applying adhesive to the edges of the tiles, feeding tiles successively to form rows of a desired length, shifting each roviT of tiles after its formation in a sembled tiles.

30. A method of assembling polygonal tiling consisting in applying adhesive to the edges of the tiles, feeding groups of tiles successively to form units of the desired length, shifting each unit of tiles after its formation vin a direction at an an le to a side of the individual polygonal ties, and subsequently attaching a backing to the resulting sheet.

In Witness whereof, I have hereunto signed my name.

WILLIAM J. KENT.

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