US978234A - Machine for the manufacture of cellular boards. - Google Patents

Description

T. H. TAYLOR. MACHINE FOR THE MANUFACTURE OF CELLULAR BOARDS.

APPLIUATION FILED APR. 23, 1909.

Patented Dec. 13,1910.

Witnesses T UNITED STATES PATENT OFFICE.

THOMAS H. TAYLOR, OF CINCINNATI, OHIO, ASSIGNOR TO THE CHARLESBOLDT COM- PANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO.

To all whom it may concern:

Be it known that I, THOMAS H. TAYLOR, a subject of the King gated and is secured'to one of the facing" sheets which formsa part of the cellular board. These operations are carried forward paper is then conveyed by one machine. The in rolls to a backing machine, which secures "the other facing sheet in place on the corrugated stri duction of a simple and effective bac ting ,machine in which means are employed for gluing the backing sheet to the corrugated strip, feeding the stri throu h the machine where it is heated-ancfpressed ing strip secured firmly in place, cutting the cellular desired lengths.

In the drawings accompanying this application and forming a part thereof, Figure 1 is a side elevation of a machine embodying my invention. Fig. 2 is a perspective view of a pressure roll shownin connection with a mountingbracket The roll, relative to the bracket, is-shdwn in the operative position. Fig. 3 is a perspective view similar to Fig. 2, in which the pressure roll' is shown moved to "an inoperative position relative to the bracket. Fig. 4 is a perspective view of a fragment of the cellular board formed by the backing machine.

@Referring to the drawings: the corrug'a'te'd'fboard, after it is finished, consists of a corrugated sheet 5, a facing sheet 6 and a backing sheet 7. The facing and backing sheets are similar,

the corrugated sheet 5,after thefacingsheet has 'been secured in place. 1

backing ma- 3, such as the strip. 8, shown in Fig.

Specification of Letters Patent. Application flledApril 23, 1909. Serial No. 491,847.

of Great Britain, and resident of Cincinnati, countyo'f Ham lton,

The ob ect' of invention is the r0- and the backand, finally, board so formed, intonot great enough the only difference being thatthe backing sheetis secured-in place on is strip is first passed under a guide roll 9, and then across a glue distributing roll 10, which is partially submerged in the vessel containing glue. A roll 11, contacts with the roll 10, and-is technically known as a cut-off 'roll. The function-of this roll is to wipe off the excessive lue adheringto the surface of the glue distrl uting roll. Both the rolls, 10 and 11, are positively driven by driving connections, not shown. .After the strip 8 has passed over the glue distributingroll, it is passed under aguide roll, 12, which is located in a plane belowrtheplane of the gluing surface of the roll'10 so as to insure that the corrugated sheet will contact with the glue distributing roll. The strip then passes over a second guide roll to. a oining roll 13, where it. meets the backing sheet 7. The backing sheet is'stord in a. roll 14, which is rotatably mounted, and the sheet passes around the roll .13 between-the roll and the corrugatedsheet 5 0fthehstri '8. The strip 8 with the backing sheetiiip ace on the con'ugated-sheet is backing machinen where it travels across a heater plate 15 andis subjected'to just sulficient pressure to backing sheet inplace on the corrugated sheet, care being taken that the pressure is to crush the arches or the corrugations of the sheet 5. 1

The heater plate, which is heated by means of steam coils l6, and which is smooth upper surface. T

is plate extends the whole length of the machine ,and is and 18 are mounted in suitablegbearin lo-, cated at either end of the pla't 'l5. "These pulleys support a heavy endless belt 19, which runs loosely around them and 'which is substantially the width of the plate 15. The belt is so adjusted over the pulleys that the lower leg runs on and contacts with the strip .8 in its passage across the face Ot-the plate 15. .The of a belt and gearing, in the pulley 18 is driven by means )ulley 20 and intermediate irection of the arrow shown in Fig. 1 and itdrives the belt sothat. the "lower legof the belt moves in the direction of the stup 8 as it passes through the ma.- chine. The pulley 17 is an idler and merely supportsone end of the belt 19. This-belt is; so adjusted over the pulleys that itcontacts' withthe' strip 8. almost theentire Patented Dec. 13, 1910.

then fed to the.

insure'the securing of the plate 15 consists of a fiat rovided with: a

heated throughout its lengtli.' Pulleys 17 2. a side of the heater plate 15- length of the heater plate and is effective in holding it in resilient engagement with the plate and also'impelling it through the machine.

-..=-The frictionbetween the belt 19 and the strip .8 is sufficient for some'widths of the strip 8 to'cause'the beltto grip and impel the strip through the machine and to hold it with sufticientpre'ssu're against the heater adapted to be located invertically eXtending ways 25, provided in brackets 26, which are secured in place on the machine at each By permitting one-of these rollers 22 to rest on the lower leg of thebelt'l9, the pressure of the belt against the strip .8 is increased, and, consequently, the friction between the belt and the strip is increased. Asmany rollers may be employed as is necessary to meetthe existing conditions. The bearings 23 of each roll are free to move up and down in the Ways 25, and, consequently, the rolls transmit an equal pressure to the belt for all thicknesses of the strip 8, which may be.

passed through the machine. In other words, the pressure rolls will adjust themselves relatively to the plate 15, to accommodate varying thicknesses of strip 8-, without increasing or diminishing the pressure transmitted by them.-

' The rolls are moved to an inoperative position by raising their bearings 24 out of the ways'25, and by then supportingthe bearings on the top of the bracket. This is accomplished by turning the bearings diagonally', after they are free of the ways and.

then setting them on the tops-of the brackets so that only the corner projects downwardly between the bifurcated ends of the brackets.

The alternate'rolls in the machine, illustrated'in Fig.1; are shown in the inopera-.

tive position. if V After the strip :8 has passed across the .heatenplate 15, the glue is, for all practical purposes, set, and'the backing strip is firmly secured in place. The strip is then delivered from the machine across a delivery table 27, whichis secured to the frame of the machine. This table delivers the strip -to a rotating knife 28, which is mounted in ,suitable' bearings, and is driven, by means operating gearing of the pulley 18. At the instant of severing a piece of the strip 8 froin the main body of the strip, the forof a chain and gear connection 29, by the shape, or v s .2. In a, backing machine through themachine and in contact with the belt 19 is of course, not interrupted by the cutting operation, and, consequently, meansl must be employed for preventing 1njury to the strip by suddenly checking the severed end. I accomplish this by arching the table 27 so that the strip in its passage over the table is initially arched, or bowed. With this arrangement, the only effect that the cutting operation hason the strip is to increase the amount of curvature ofthe portion of the strip on the table 27. The in creasing curvature merely raises the strip from the table for a short interval of time, and has absolutely no effect on the portion of the strip gripped by the moving belt 19. If the table 26 were flat, it will be readily apparent that of the forward motion of the sheet would crease strip' 8. The force applied bythe knife in stopping the sheet would act directly opposite to the force a plied by the belt 19, in moving the strip orward, and, consequently, the strip would have to give,, and in all robabilities it would crush out of on too short an arc.

The portion of the strip severed by the knife 28 drops to a table 30 between the bearings of the knife, and from there it may be removed. The knife 28 is provided with a number of sets of change speed gears,

so that its speed may be varied relative to the speed of the belt 19 for the purpose of cutting the strip 18 into different lengths.

In accordance with the patent statutes, I have illustrated and described what I now consider to be a preferred embodiment of my invention,'-,but I desire to be understood that I do not limit myself to the ap aratus shown, and that. various changes an modifications may be made without departing from the spirit and scope of my invention. What I claim is: v .1. A'backing machine for cellular boards comprising a heater with a fiat heating face, a belt, means for moving the belt across the face of the heater and rollers sup orted by the belt and adapted to hold it yiel ingly in engagement with the face of the heater to feed the cellular board over the heater and to yield for varying thickness of the board.

for cellular boards, a' heater plate extending the entire length of the machine, a pressure belt, a pair of pulleys supporting said pressure belt, one leg of which is adapted to transmit pressure to said plate, means for drivingsaid pulleys, so as to move said belt acrossth'ea face of said plate, creasing the pressure of said belt,.:movable bearings for said rolls, brackets located on each side of said a series of rolls for inplate and provided with the momentary interruption e broken, as a result of bending combinationpwith means for constantly and means for supporting said rolls in an a inoperative pelling the stri 4. In a machine for making multiple ply paper fabrics, means for cem'enting together paper webs, means for constantly impelling 15 the fabricthrough the machine, a knife for severing the fabric at the delivery end of the machine and an arched delivery table between the means for cementing the webs and the knife.

THOMAS H. TAYLOR. \Vitnesses:

WALTER F. MURRAY,

AGNES MCCORMACK.

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