|Publication number||US1302831 A|
|Publication date||May 6, 1919|
|Filing date||Dec 1, 1916|
|Priority date||Dec 1, 1916|
|Publication number||US 1302831 A, US 1302831A, US-A-1302831, US1302831 A, US1302831A|
|Inventors||Walter E Naugler|
|Original Assignee||Edward F Allen, Walter E Naugler|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (15), Classifications (3)|
|External Links: USPTO, USPTO Assignment, Espacenet|
W. E. N'AUGLER';
.mnuoopr cnusms PAPER ao Ano mu m: LIKE. "APPLICATION FILED DEC. I. liliswun -Irma n IAUGLII,
' Be it known'that I, WALmE,
ALLIIQQF, men or 01mm sub mean To an whom it may a subject of the King of nngluiajsna a o esidmtiof Bo t ny' vt o n yet fl and Gemmonw th Or n B B' QhHS W, have-y inv n dyoet in n w a vusef l 2 t-u ments vingMeth dsOfwCreasin Paper oard and-the$like,o which the t llowing is a s ecificatiemv v This i inv'entionflrelatesto the method of v A ingf' spsiboard and the like; and has "gfo i i s a v a t ha c m n s fl xi lity fendilstrength heretofore. unattainable by the rotary creasingv v,m'ethodsat present employed. I i
ie'c'tjthe production of f a cream I ,j A, tempts havebeen madeto crease paper board by the'useof opposed rotating implements-ori disksyand in some instances a sedisks"; have been used, each pair enemas performing a portion ofvthe;
g a 1 Inall the rotary creasing methods atpress rin s, the bo'ard is fed to the first set of rolls its. initial or preliminary creasing,
be ween'viewhich it .is tightly grip and compressed, and thereafter it is f to sueceedln'gisets of rolls for the final crossings.
This method has proved to be a-failure because I of the vharsh treatment the board re 'ceivedf'during eral sets of rolls, vpasse itiwae'so gripped between'the first set ,0 "rolls that it was notbent to form a-*' its between the sevue to the factthat in "its [preliminary crease but was stretched.
sis composed' was strained and consequently weakened, andthesucceeding creasing op The-fibrousmaterialxof which the board eration'slj eachfadded its quota of compres- .1 i1 therefr the m e al c e 1 sionlandjstretchi This" additional'istretch- "ingjand com ressing added nothing to the ft e fibrou's materiahbutin fact extremely brittle.
. i T e jthus formed h be hub dlgd withigreat care and: was easily broken,
andbeing unreliable, was not a commercial or ofthis' invention is to prodnce AD -IF andt. final creasingset;
e the final creasing rolls adap the work started by the preliminary bending bluralitybf in av t item.
original sea-sa a of, the a board without l 'MH g it, 'and to add just suflicient comression to the creased part to give it its Tmthe attainmentofnt abovet is in v rmanenc of it.
hers, including a preliminary bending set,
The preliminary bending set is so arrangedjes to bend and not'stretch the board and furthermore does not compress it. The
final 'set'of creasing rolls -in this instance is composed of four rolls :or cons structed and arranged" as to give thedesired s1ze,-- shape, and. permanency t'o th'e crease.
Of the drawings:
bending a str1p of paperboard'priorto the finalicreasmg thereof, the board be shown tween the rolls; h
Fig. 2 is a view similarito Fi 1, showing toycomplete in section in the 'form it, assumes w en be rolls, the board 'belnglikewiseshown'in section at the point where the rolls contact with it. 1 v g Fig. 3 is a sec io onthe lines'H; 'Figs. 1' and .Zshowing the preliminary hen and final creasing rolls in their pfmfe relative positions, in the act of bending and creasing a strip of pa er board. Fig.4 is an enlar 7 form of crease pro uced'by thismethod.
Fig; 5 is a similar viewshowing the position and shape assumed by the crease after the board has been "bent at'right angles to itself along the line of the crease.
' Similar ,The set of'prelimina composed of an upper r0 1 10 having a cen view of the preferred characters designate like parts throughout the several figures of the draw- .7 geferringtothe drawings: I
bending rolls in tralrihll; and alower'roll12 having the groove 18.
rolls 110 -12 are preferably adjustably mu'r dtqpt pa si y. en shaft! 14. 15, which are capable of adjustmenttO- ward and from each other to compensate for various thicknesses of to graduate the bend to board. v
The disposition of the rolls 10 and 12 is such that the board is not compressed as it passes between them, but is free to be drawn laterally toward them as it is-beingbent, and therefore the material at the bend will paper board and given to the not be stretched andtorn.
For the best results these ribs will be separated a trifle less than the thickness of the board, and as it passes between the ribs it willlreceive a slight compression. It will be understood, however, that good results can be obtained without resorting to the compression just referred to.
T e ribbed rolls 1719 would not of themselves be sufiicient to form the final crease, hence the use of the smaller inclined rolls or disks 2223. As'before mentioned, these rolls 2223 are adjustable toward and from each other as well as being adjustable toward or from the roll 17.
These rolls 22-23 are so arranged as to force the material in the bend inwardly toward the rib 18 and upwardly against the roll 17 ateither side of the rib 18. ably a slight compression of the material by these rolls would be advisable and yet not absolutely necessary, as it has been found by experiment that good results are obtained without it. a 1
While it is desirable to use rolls such as 22-23 to form the sides ofthe crease, it will be obvious that other devices might be used in place thereof, such, for instance, as stationa material toward the roll 17 and rib 18.
The final crease or channel herein shown is the preferred form, but it is obvious that the same may'be made with parallel fiat,-
sides or with conver 'ng flat sides and not depart from the spirlt and scopeof this invention.
From the foregoing it will be seen that it is an esential feature of this invention to first bend the material without stretching or comp it and to gather enough material in sai bend to form all the material necessary for the finished crease.
It is believed that the operation and many advan of this invention will be fully understood from the foregoing description.'
Preferguide members that would force the Having thus described my invention, I
claim I. The method of creasing paper board consisting in first bending said board without compressing the material to form a depression therein and then feedi the depressed pontion between the oppositely disposed flanges of two rollers and subjecting to roller pressure the portions of material in said depression on opposite sides of said flanges and thereby forming a substantially recta lar crease.
2. he methodof creasing paper board, consisting in first formi two parallel depressions therein by sets 0 rollers arran ed to permit movement of-said board towar a point intermediate saio sets while said depressions are being formed and then feeding the material in each depression between another set of rollers and subjecting the outer portions of each depression to side roller pressurewhile the central portion of each depression is disposed between said second set of rollers thereby forming rectangular channels from said, depressed portions.
3. The method of creasing paper board, consisting in first forming two parallel depresions therein by sets of rollers arran d to permit movement of said board towa a point intermediatesaid sets while said dopressions are being formed and then feeding the material in each depression between another set of rollers and subjecting the outer portions of each depression to side roller ressure while the central portion of each depression is disposed between said second set of rollers thereby forming rectangular channel's fromsaid depressedportions said channels having flat sides .se ated a distance at least equal to the tlnclmess of said paper board.
4. Means for creasing paper board consisting of a pair of coacting revoluble rolls, one
of which has an annular flanlge coacting with an annular groove of the ot er; two revoluble pressure members provided with coacting annular flanges; and means for forcing the material over the edge of one of pressure flanges.
5. Means for creasing paper board consisting of a pair of coacting revoluble rolls, one
of which has an annular flange coacting with anannular groove of the other, the eripheries of said rolls being separated a distance greater than the thic ness of said'boardtwo revoluble pressure members provided with coactin annular flanges; and means for forcing t e material over the edge of one of said pressure flanges.
6. Means for creasing paper board consisting of a pair of coasting revoluble rolls, one of which has an annular flange coacting with an annular groove of the other; two
. revoluble pressure members provided with coacting annular flanges; and rollers on opposite sides of said ressure flanges adafted to force the materi against the sides 0 one ofsaidflanges.- e 1 7. Means for creasing paper board consist ing of a pair of eoacting revoluble rolls, one of which has I an annular 'flange ,ooaeting with an annular groove of the Other; two revoluble pressure members provided. with e0 annular flenges;.,and rollers on opp ite sides of said pressure flanges ada 10 to force the material againd; the peri ry of'o'ne of the pressure rolls and the si es of its annular flange.
Signed by meat 4 Post Oflice Sq., Boston, Mass., this 25th da of November, 1916.
, W TER 'E. NAUGLER.
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