US1179941A - Machine for making double-faced corrugated paper. - Google Patents

Description

s. M. LAAGSTUN.

MACHINE FOR MAKING DOUBLE FACEDCQ'RRUGATED PAPER. APPLICATION F1LEn -sE.T.1s,'1915.

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SAMUEL M. LANGSTON, OF WENONAH, NEW JERSEY.'

'MACHINE FOR MAKIG DOUBLE-FACEI) CORBVJUGATED PAPIER.

il .179.92m

Specification of Letters Yatent.

Patented Apr. l, 1916i Application tiled September 13, 1915. Serial No. 50,335.

all whom it may concern.' Be it known that I, SAMUEL M. LANGS- 'ToN, a citizen of the United States, and resident of Nenonahj in the county of Gloucester and State of New Jersey, have invented certain new and useful Improvements in Machines for Making Double-Faced Corrugated Paper, of which the following is a on to said platform or table by means of one' or more pressure plates.

One main object of my invention is to so mount .the pressure plate that it may yield as material of different thickness is passed thereunder and so that the degree of pressure exerted upon the material may be varied at will.

Other features will be pointed out more particularly hereinafter. A In the accompanying drawing, I havey shown rather diagrammatically a side ele-f vation of a machine constructed in accordance with my invention, a portion of the machine being shown in longitudinal section,

This machine involves only one embodiment of my, inventionMbut variousl'other forms may be designated withinthe spirit of my invention and without departing from the scope of the appended claims.

I have illustrated the machine as includ- -ing a main frame 10 which supports a table f or platform over which the materialpasses.

This table or platform may be formed of a single continuous plate or sheet or 'it may be inade up of separate sections.

As illustrated I employ three sections 11, 12 and 13 arranged with their upper surfaces in the same laneV and closely adjacent to each other. Above this table I provide yielding means for pressing the lmaterial toward the table. Such means. includes a superposed plate held in parallelismwith the' platformand movable in a direction having a vertical component. There may be any desired number Aof these plates or the plate may be made up of any desired number of sections. The sections may be connected together or they may be and preferably are capable of independent movement. As shown, the plate includes three sections 14, 15 and 16, each'supported by two parallel links 17 and 18 from a superposed frame-part. These links are' preferably all of the same length and extend downwardly and toward the delivery end of the machine when the superposed plate sections rest directly upon the platform. The superposed plates are capable of moving in parallelism and inl a direction having vertical and horizontal components. The plates will rest directly upon the material and they may be weighted or relieved of weight so as to apply the desired pressure. This means for varying the pressure maybe of various different forms, but a very simple and eiiiient form involves the use of horizontally disposed arms 19 each rigidly connected to one of the links of an upper plate or plate section. As illustrated, each link 17 has an upwardly extending arm 20 carrying the corresponding horizontal arm 19 and upon each arm 19 is a weight 21. The weights are adjustablelengthwise of the arms 19 and maybe mounted on either end,

that is, upon either side of the arm 20. With the weights as shown in the drawing, that is, on the arm.portions projecting toward the delivery end of the machine,they will tend to swing the arms :20 toward the delivery end and will thus tend 'to press the plate sections lll, 15 and 16 down -on to the material. Their effectiveness may be varied by adjustment along the length, and by putting them on the opposite projecting portions of the arms 19 they will tend to counteract the weight of the plate sectionsfand will tend to lift the latter off the material. Thus,- the e'ective pressure exerted by the superposed lates may be either increased or decreased rom normal at will, dependent upon the character of the material operated upon, the nature of the adhesive, the temperature, etc.

The superposed plate sections are, as previously stated, independently movable and gradually increasing or decreasing pressures may be exerted on the plate sections toward the delivery end of the machine. In order to simultaneously raise all of th supenposed plate sectionsV and permit the pressure plates during the threading of the material therebeneath, any suitable means may be employed. As illus-- trated, each upwardly extending arm 2O has a pin 22 operating in a longitudinally exi tending slot or recess -n a horizontal bar 23. The length of these grooves or recesses permits of the independent movement of the normal opera# tion of the machine While, the bar 23 in the direction of the arrowfthe` pins 22 will engage with the ends of their respective recesses or slots and all of the pressure plates will beraised to the desiredl position above the platform.

The material delivered tothe pressureplates includes a combined sheet made up of a facing sheet A and a corrugated sheet B, and a second facing sheet C freshly applied to the crowns of the corrugations of the sheetA opposite to the facing sheet A. The sheets A and B may be delivered in any suitable man-ner and any suitable means may be provided for"`applying adhesive to the crowns of the corrugations. In the drawing, I 'have shown an adhesive receptacle 24 ,having a roller 25 dipping into the adhesive and a second'roller 26 operating to transfer the adhesive from the roller 25 to the crowns of the corrugations.

The second facing sheet may be taken from any suitable source of supply as for instance a .roll 27. On its way from the roll to the adhesive covered corrugations of the sheet B, -it is passed over combined heating and tension means which also embodies certain features of my invention. As illustrated, I employ two drums 28 and 29 and two idler rollers 30 and 3l. The roller 30 is carried by arms 32 mounted'concentric with the axis of the drum 28 while the roller 31 is carried by arms 33 concentric with the Vupper drum 29. These arms may be swung to the position shown in dotted lines in the,h drawing so that the paper may pass from the roll 27 upwardly betweenthe roller 30 and the drum 28 and thence between the roller 31 and the drum 29 and over the latter to the platform. This facilitates an easy threading of the machine. The drums are preferably internally heatedv as for instanceby passing steam through the journals thereof and the arms 32 and 33 are normally swung to the position shown in solid lines in thexdrawing so that the facing sheet C is maintained in engagement with the peripheral surfaces'y of both the drums *55,1 adhesive while the combined sheet is passing 28 and 29 for a considerable portion of "saidl surfaces. Thus, the sheet C is heated-before it reaches the platform and before it comes into contact with the adhesive coated corru-I gations of the; middle sheet B. "The preliminary heating of the facing Sheet C may; in some cases, be amply suflieicnt .to cause the complete drying of the by pulling on f steam box or to the first two, or to all three as may be desired. The pressure plates may have steam b'oxes 38 to which steam may be supplied from a conduit 39 and independent valved connections 40. Thus, only the first -pressure plate or of 'them may be heated.

Any suitable means whatsoever may be any desired number A employed for continuously or intermittently drawing the material'through the machine and beneath the pressure plates. This may include superposed-belts having parallel runs or pairs of rollers, or any other means known inthe trade. I have illustrated rather' conventionally a feeding means which includes a belt 42 carried by drums 43 and having its upper run supported on a plurality of 'rollers 44. Resting upon the vmaterial and above the drums 43 and the belt, I may employ elther a second belt or a plurality of rollers 45. `These are preferably driven by suitable gearing so as to have a rate of surface travel substantially equal to that of the belt. This feeding means.l serves to pull the product from beneath the pressure plates and the latter, together with the supporting table or platform, operate to hold the facing sheet C in proper engagement with the corruga tions-of the sheet B While the adhesive Vis dried. As previously stated, the drying may be facilitated -by heating the platform angl ,s interrupted, thepressure plates may instantly be raised out of engagement with the material and the arms 32 and 33 swung tothe dotted line positions to entirely free the sheet C from the drum 28 and partially free it from the drum 29. By thus relieving the materiali from pressure and a largeportion of the heat, the said material will not be injuriously affected ifit be permitted to remain in the machine for a may be short time after the latter has been stopped.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is: 4

.Li'zasei y terial as the latter passes over said platterial asv the latter form,V means permitting the independent movement of said pressure .plates upwardly and toward the delivery end of the machine, and means for simultaneously raising all of said plates.

3. A machine of the class described, in-V cluding a supporting platform, a plurality of independentpressure plates arranged in succession' and adapted to rest upon the material as the latter passes over said platform, means permitting the independent movement of said pressure plates upwardly and toward the delivery end of the machine, and means for heating said platform.

Il. A machine of the class described, including a supporting platform, a plurality of independent pressure plates arranged in succession and adapted to rest upon the mapasses over said platform, means permitting the independent movement of said pressure plates upwardly ,Y and toward the delivery end of themachine,

and means for heating said pressure plates.

A machine of the class described, including a supporting platform, aplurality of independent pressure plates arranged in succession and adapted to rest upon the material as the lattter passes over said plat form, means permitting the independent movement of said pressure plates upwardly andtoward the delivery end of the machine, means for heating said platform, and means for heating said pressure plates.

'6. A machine'of the class described" including a support for the material, a superposed pressure plate, a pair of parallel links controlling the movement of said pressure plate, and means for varying the effective pressure exerted by the latter.

T. A machine of the class described including a support for the material, a superposed pressure plate, a pair of parallel links controlling the movement of said pressure plate, and a weight adjustable in respect to said links for varying the effective pressure exerted by the latter.

8. A machine of the class described inn cluding a support for the material, a superosed pressure plate, a pair of parallel links controlling the movement of saidw pressure plate, an arm connected to one of said links .adapted to rest extending substantially horizontally in respect thereto, and a weight adjustable along the length of said arm.

9. A machine of' the class described, including a support for the material, a pressure plate adapted to rest upon the material, a pair of parallel links connected to said pressure plate and extending downwardly and toward the delivery end' of the machine to permit the upward andforward move ment of said pressure plate, and a weight connected to one of'said linksand adjustable to increase or decrease the effective pressure of said plate.

10. A machine of the class described, including means for heating a facing strip,

means for applyingv -adhesive to the 'crowns of thev corrugations of a single faced strip, a support over which the combined sheet may pass, a pressure v'plate for yieldingly holding the combined sheet into engagement with said support, and feeding means for causing the movement of said combined sheet over said support and beneath said pressure plate.

11. A machlne of the classdescribed, in-

cluding a heated druma roller adjustable said drum to vary the A circumferentially of extent of the peripheral surface of said drum with which a facing sheet may engage,

means for bringing a corrugated sheet into engagement with said facing sheet, a heated table over which the combined sheet may pass, a yielding pressure plate for engagement with the material as the latter passes over said table, Vand means for raising said pressure plate upwardly out of engagement with the material.

12. A machine of the class described, including a heated drum, a roller adjustable circumferentially of said drum to vary the extent of the peripheral surface of said drum 'with which a facing sheet may engage, means for bringing a corrugated sheet into engagement with said facing sheet and holding them in engagement with one an other as they are drawn through,I the niachine.

13. A machine for making double faced corrugated paper including a support Jfor the material, a plurality of independent pressure plates arranged in succession upon the material as it passes over said platform, and a separate pair of links connected to each pressure plate and permitting a movement of each plate independently of the other plates and upwardly and in the directibn of travel of the material.

v 14. A machine of the class described, in-

cluding a support for the material, a pluv effective pressure of each plate greater or less than the normal pressure resulting from the Weight of the plate.

15. A machine of the class described including a support'for the material, a plurality of pressureplates arranged in suc cession and adapted to rest upon the material 'as the latter passes over said support, and separate guiding means foreach plate for 'holding it in parallelism with said support andl permitting. a movement upwardly and in the direction of movement of the material of slightly varying'thickness passing therebeneath.

16. A machine for making double faced corrugated ,paper including means for applying adhesive to the crowns of the corru` Y gations of a s1ngle faced 'corrugated sheet, means for delivering a facing sheet to the adhesive covered crowns, a supportI over which the combined sheet 'passes and engaging with said facing sheet, a plurality of independent pressure plates arranged in succession and adapted to rest upon the combined sheet as the latter passes over said support, and guidingmeans for each plate permitting of the independent movement of said plates upwardly as irregularities in the Copies of this patent may beI obtained for ve cents each, by addressing the"Commissioner of Patents, I

ing With said facing sheet, a plurality of independent pressure plates arranged in succession and adapted to rest upon the com bined` sheet as the latter passes over said support, guiding means for each plate permitting of the independent movement of said plates upwardly as irregularities in the thickness of the combined sheet pass therebeneath, and means for simultaneously raising all of sald plates out of engagement with 4sald combined sheet.

Signed at Camden in the county of Camden and State of New September, A. D. 191e.

SAMUEL M. LAN GSTON lVitnesses:

HARRY J. GREEVE, M. TEITCHMAN.

Washington, D. C.

Jersey this 7th day of

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