US782559A - Machine for making corrugated paper-board. - Google Patents

Description

PATENTED FEB. 14, 1905.

J. N. HAHN MACHINE POR MAKING CORNUGATED PAPERl BOARD.

APPLICATION FILED 00T. 28, 1904.

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WJTNESSES.-

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YNo. 782,559,

UNITED STAT-Es Patented. February 14, 1'905.

PATENT OFFICE.

JOHN N. HAHN, OF CLEVELAND, OHIO.

MACHINE FOR MAKING CORRUGATED PAPE-BOARD.

SPECIFICATION forming part of Letters Patent No. 782,559, dated February 14.-, 1905.

Application filed October Z8, 1904. Serial No. 230,311.

T0 all Loh/0m it may concern:

' Be it known that I, JOHN N. HAHN, a citizen of the United States, residing at Cleveland,` in the county of Cuyahoga andv State of Ohio, have invented certain new and useful Improvements in Machines for Making Corrugated Paper-Board; and I do declare that the following is a full, clear, and eXact description of the invention, which will enable others skilled in the art to which it appertains to make and use the' same.

My invention relates to a machine for making corrugated paper-board; and the invention consists in an improvement upon the machine embodied in my application for Letters Patent, filed June 16, 1904, Serial No. 212,845. In the said machine two series of ironing-rollers, one over the other, is employed; but there is nothing' in the space between the rollers adapted to bear upon the paper-board and hold the sides thereof together while the operation of pressing and drying is in progress, and I have found that said sides are more or less liable to spring apart between the said rollers, especially before the paste thickens and becomes thoroughly adhesive, and this renders the work of the machine more or less defective. Obviously this must be so if the advance rollers are defeated in their purpose, because there is nothing between them to economize their service, and by reason of which there is more or less loosening or springing apart ofthe sheets between the rollers. Under these conditions it follows that the advance rollers did not accomplish as much work as they should have done, and this threw the work mostly on the vrollers toward the rear end of the machine, where the space was too limited to do the work effectually. For these andy other reasons I have supplemented the rollers with presser or ironing plates or members, filling the space between rollers and effectually holding the paper sheets together in their entire line of travel till the board is finished, allas hereinafter fully set forth.

In the accompanying drawings, Figure 1 is a side elevation, partly brokenaway, of my improved machine; and Fig. 2 is a planview of a section or portion of the machine on a line corresponding to a' a', Fig. l. Fig. 3 is a longitudinal sectional elevation of a group of four of the n umerous upper and lower rolls or rollers and of the intermediate presserplates o'r ironing members'which cooperate with said rollers. Fig. 4 is a 4cross-section of the machine on a line corresponding to y y, Fig. 1; and Fig. 5 is a cross-section on a line corresponding to .e e, Fig. 1, immediately in advance of' Fig. 4. Fig. 6 isa cross-section of opposed presser-plates and the means for supporting the same; andFig. 7 shows a modification of the presser-plate, which is hollow and adapted to be heated internally with steam or otherwise. Y

The paper-stock which comes to this machine is finished therein as a paper-board, as usual, and consists of an inner transverselycorrugated and pasted sheet andv plain outer sheets on opposite sides adhered to the said transverse corrugations or ribs; .but the prod- .uct as such is not regarded as a new article.

The machine as shown comprises two series of' rolls or rollers A and B, respectively, in parallel lines transversely of the machine, between which the paper P passes, and the said rolls aresupported in a boX ormchamber E,

which is adapted to be heated bysteam-pipes or otherwise for drying the paper or paperboard as it passes through the machine, the heating beingnecessarily done while the rolls are at work. Usually this b'oX or chamber is of a length varying, say, from thirty to fifty feet, a gradual drying of the paste being required along with a moderate and uniform pressing of the sides of the paper together.

Each series of rollsA and B has its own supports, the upper series l'having bearingblocks C and the lower series bearing-blocks, D. Each block preferably is madel to support two rolls, and blocks D rest on ledges or supports F in or from the bottom of chamber E, and blocks C are suspended by screws Gr, engaging loose nuts g, housed in blocks C and by which the elevation of the upper rolls A and their relation to rolls B are con-'- trolled. Vertical stay-rods H are provided between the bearing-blocks successively, said blocks havingsemicircular grooves in their edges half-way overlapping said rods on opposite sides, and the said rods are screwed IOO down into the base-supports F, thus forming standards between each two upper and lower blocks successively,between which said blocks are held, but are removable above, and the upper block is adjustable, as above described. The upper blocks likewise are supported on or from these standards by means of yokes or bars L, which, like said blocks, have semi-l on the threaded extremities of screws G.- A. lengthwise shaft N carries worms a, which.'

engage pinions K, and thus all the upper rolls are adjusted or raised and lowered alike and at the same time to liX their working relation to the lower rolls. The lower rolls are driven positively and at the same rate of speed by shaft M and bevel-gears m thereon, while the upper rolls run or turn by contact with the paper which is carried along by theA lower upon the paper.

rolls.

Now coming to the more important feature of the invention as embodied in the presser or ironing plates or members O, it will be seen that said plates have fiat smooth bearing-surfaces exposed to the paper P and of such width as to substantially span or bridge the space between the rolls at their bearings Obviously the space covered by said rolls in contact with the paper is comparatively small, while the intervening space is large, 'and hence the great importance of providing this space with means which will supplement the work of the rollers and hold together the sides of the paper in its transit from roll to roll until the entire board is uniformly pressed and completed. To these ends the said plates are provided with ribs or flanges 0 centrally on their backs, which give them rigidity, and are each fixed to yokes Y at their ends, adapted to hook or rest upon the hubs or bosses g/ of the respective bearing-blocks C and D. The lower yokes rest ed air or the like to apply the heat directly to the paper-board.

l. Inv a paper-board-making machine, a

series .of presser-rollers and a series of presserplates between the rollers.

' 2. In a paper-board-making machine, two parallel series of rollers between which the board passes and independent presser-plates between said rollers.

3. The drying chamber and the rollers therein and oppositely-arranged presser-plates between said rollers having separate end supports.

4. The drying-chamber and the two ser-ies of rollers therein, presser-plates between said rollers and means for raising and lowering the upper rollers and presser-plates together,

5. The machine substantially as described having two parallel series of rollers horizontally, presser-plates between the rollers of each series, vertically-adjustable bearings for the Lipper series of rollers and supports for the upper series of presser-plates engaged upon said bearings.

6. In a paper-board making machine, a lower series of rollers and power connections to rotate the same, an upper series of rollers and means to raise and lower the entire series simultaneously, and presser-plates between said rollers.

7. In a paper-board-making machine, two parallel series of rollers and two series of independent presser-plates between said rollers, bearings for said rollers one over the other and vertical stays for said bearings, the said presser-plates supported by said bearings.

8. In a paper-board-making machine, upper and lower series of rollers and a series of bearings at each end for said rollers, vertical stays on which said bearings are engaged edgewise and means to suspend the upper series of bearings from said stays.

9. In a paper-board-making machine, upper and lower presser-rollers and bearings therefor one over the other, a series of vertical stays confining said bearings, cross-bars on the top of said stays and means suspending the upper series of said bearings centrally from said cross-bars.

l0. In a paper board making machine, a lower series of rolls and an upper series of rolls, bearings for the upper rolls and vertical stays on which said bearings are slidably engaged, cross-pieces at the tops of said stays and screws supported therein and engaging said bearings and adapted to adjust the bear- IOO series of lower power-driven rollers, in combiand presser-plates and means to raise and nation with a series of suspended upper rolllower the same together. I0 ers, and means to simultaneously raise and In testimony whereof I sign this lspecificalower said upper rollers. tion in the presence of two witnesses. 5 13. In a paper-board-making machine,Y a JOHN N. HAHN.

series of lower powerdriven rollers and a Se- Witnessesz l riesolupperrollersandpresser-platesbetween C. A. SELL,

the same, means suspending said upper rollers R. B. MOSER.

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