US1179411A

US1179411A - Paper-making machinery.

Info

Publication number: US1179411A
Application number: US4184815A
Authority: US
Inventors: Harold F Dunbar
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-07-26
Filing date: 1915-07-26
Publication date: 1916-04-18
Anticipated expiration: 1933-04-18

Description

H. F. DUNBAR.

PAPER MAKING MACHINERY. APPLICATION FILED JULY 26,1915.

1 ,1 79,4 11 I Patented Apr. 18, 1916.

4 SHEETS-SHEET l- INVENTOR,

W'TNESS Hamid lib/0m ATTORNEY.

COLUMBIA PLANOGRAPH 330., WASHINGTON, D, C.

H. F. DUNBAR.

PAPER MAKING MACHINERY.

APPLICATION FILED JULY 26. 1915.

' 1,179,41 1. Patnted Apr. 18, 1916.

4 SHEETSSHEET 2.

WITNESS v INVENTOR; I

. flmZdZ Z'Dmh: W BY W A TTORNE Y.

THE COLUMBIA PLANOGRAFH (20., WASHINGTON, D. C.

H. F. DUNBAR.

PAPEE? MAKING MACHINERY. APPLICATION FILED JULY 26,1915.

Patented Apr. 18, 1916.

4 SHEETS-SHEET 3.

V. m M mmwm m m WITNESS H. F. DUNBAR. PAPER MAKING MACHINERY.

APPLICATION FILED JULY 26.19I5.

1 179,41 1 Patented Apr. 18, 1916. V

4 SHEETS-SHEET 4.

A TTORNE Y.

THE COLUMBIA PLANOGRAPH co., WASlilNGTd-N. n. C.

UNITED STATES PATENT onmcn HAROLD F. DUNBAR, OF TURNER-S FALLS, MASSACHUSETTS.

PAPER-MAKING MACHIN'EIRY.

Specification of Letters Patent.

Patented Apr. 18, 1916.

Application filed July as, 1915. Serial No. 41,848.

To all whom it may concern:

Be it known that I, HAROLD F. DUN AR, of Turners Falls, county of Franklin, and State of Massachusetts, have invented certain new and useful Improvements in Paper-Making Machinery, of which the following is a specification.

This invention relates to improvements in paper making machinery.

The object of the invention is to provide .a device for forming creases in the paper .ing at that part of the paper making machine toward the last press rolls; Fig. 2 is a side elevational view showing the end of the last press rolls, the paper creasing device and the first drier roll; Fig. 3 is a transverse sectional view on the line 33 looking in the direction of the arrows and showing the improvement in detail; Fig. 4 is a .de-

tail view of the creasing rolls; Fig. 5 is a side elevational view of thedriving mechanism of the paper creasing device, and Fig. 6 is a detail View of a slight modification of the elastic mounting of the upper creaser roll.

Referring to the drawings in detail: 1 represents the framework of the machine, 2 and 3 the last pair of press rolls that are mounted in the usual manner in the framework of the machine. The upper press roll 2 is provided with means for exerting a suitable pressure on this roll.

This means comprises upwardly extending shafts 4 to the upper end of which is secured'a hand wheel 5, whereby when the same is rotated the roller 2 can be moved upward. Attached .to the bed portion end of the main frame is an upright 6 which supports an overhanging arm 7 Mounted in this arm and in a similar one at the opposite side of the machine are a series of rolls 8 which are designed to support the web of paper, indicated at 9, as it passes to the drier rolls 10. An idler or tension roll 11 islocated between the last roll 8 and the first of the drier rolls. Each of the rolls 8 are provided with a sprocket wheel 12 over which passes a sprocket chain 13. The power for operating the sprocket chain 13 and the web supporting rolls 8 is derived from the sprocket wheel 14 which is secured to a power shaft .15. This shaft is driven from the cone pulley 16 over which passes a belt 17 that is driven from the cone pulley 18. This pulley. is mounted on a shaft 19 on the end of which is a pulley 20 which is driven by means of the belt 21. This belt in turn is driven from the large pulley 22 which is secured to the shaft 23, that is directly conneoted to the lower press roll 3,'above referred to. The rate of rotation of the rolls 8 is so adjusted by means of the cone pul-' leys so as to be slightly greater than the rate of rotation of the press-

rolls

2 and 3.

Referring now to the means for operating the two paper web creaser'rolls 24 and 25: 26 designates a belt that is driven from the cone'pulley 27. This belt drives a second cone pulley 28, that is secured to the shaft in turn meshes with the small spur gear 31 and the gear 31 with the gear 32 of equal diameter. The shafts 33 and 34 to which the gears 31 and 32 are secured extend transversely of the machine in parallel relation with the press rolls 2 and. 3. The

creaser rolls

24 and 25 are therefore driven at the same speed as the

rolls

2 and 3. The shaft 35 is mounted in adjustable boxes 36, depending from the lower side of which are rods 37. The lower ends of these rods rest on cams 38 that are secured to a shaft 39. This shaft is provided with a hand wheel 40 whereby when the same is operated the boxes 36 carrying shaft35 can be raised and lowered as desired.

It will be necessary to depress the lower creaser rolls 25 in order to permit threading the web of paper 9 through the machine.

29 on which is secured a gear 30. This gear The

rolls

24 and 25 are provided with means for laterally adjusting the same on their shafts. The rolls 25 are secured to the shaft .35 by means of the set screws 36, while the roll 24 is, connected to the shaft 34 by means of the spline 37. Extending transversely of the machine and above the arm 7 is a connecting bar 38. Thisbar serves the double purpose of bracing the machine and for supporting a carriage 39" which can be readily locked to the bar 38 by means of the clamping arm 40 which is attached to a tightening screw 4L1. The carriage 39 is slitted as indicated at A2 and is for the purpose of permitting the carriage to be readily clamped to the connecting bar in order to position the roll 24 with reference to thesheet of paper to be creased. Depending from the carriage 39 are bracket arms 43 in which are pivotally mounted arms 44:. The arms 44. have secured'at their ends pivots A5 to which are secured upwardly extending arms 4C6 on theend of which a block 47 is secured. In Fig. 6 a slight modification is shown, the arm d4! serving the same purpose as the arm 44 in Fig. 3-. Located above and below this block are

compression springs

48 and 49. The opposite ends of these springs are provided with means for adjusting the tension thereof as indicated-by the threaded rods50 and'51.- The arm 44; oscillatesabout the pivot 52, whereby'when the web of paper is passing through the machine the roller 2% can rise and fall in order to compensate for any lrregularitles in the thickness of the paper.

It should be stated that the'belt' 2l passes attached to this weight is a depending arm to which the weight 21* is attached. It will be seen from' this; construction that the paper creasing deviceis located between the last pair of press rolls'and the first one of the drier rolls. That is to say, the paper is stillin a moist condition when the impression of the rolls 2-1- and 25 is made in the web'of paper as it passes through the machine.

I am aware that it is not new to form creases in paper at other points in its passage through the paper making machines, but I believe it to be new to locate the creasing rolls at a point inthe passage'or" the web already referred to.

It willybe observed that the ridges of the creasing rollers 24: and 25 are located one above the other in the same vertical planes as clearly shown in Fig. 4. It will also be observed that on account of the use of the large number of rollers 8 the web of paper 9 willapproach the'creasing rolls 24 and 25 in j a straight, even horizontal run. The creasing rolls "24 and 25, it will be observed are located intermediate the rollers 8.

What I claim is:

1. A device for creasing a web of moving paper while in a moist condition, comprising, a series of rollers to support the Web of paper, means for rotating said rollers at the same speed as the inoving'web of rollers, said device being arranged between the last pair of press rolls and the first drier roll of the machine; as" described.

2. A paper creasing device comprising in combination, grooved pressure rollers for engaging the opposite sides of a moving web of paper, shafts to support said rollers, means for adjusting one of said rollers, comprising pivotally mounted arms attached to its shaft, means to yieldingly support the ends of said arms, said device being-located, as described, betweenthe press rolls and the drier rolls.

3. A paper creasingdevice comprising in combination, grooved pressure rollers for engaging the opposite sides of a movingweb of paper, shafts to" support said rollers, means for adjusting one of said rollers comprising pivotally mounted armfs attached to 'its shaft, means to yieldinglysupport the ends of said arms, said device being located, as described, between the press rolls'an'd the drier rolls, ancl'iiieans for laterally adjusting said rollers relative to the width o f the web of paper.

4. A paper creasing device comprising a series of web" supporting rolls, a pair of creasing rolls, located intermediate the supporting rolls, said rolls being located between the last pair of pressrolls and the first drier roll, whereby the paperis'cre'ased while in a moist-condition;

5. A' device for lmpartlngcre'ases'to the.

opposite sides of a moist web-of moving paper and comprlslng a pair of grooved rollers, the elevations'or ridges 'of sa'id rollers being oppositely located and arranged in the same vertical planes, said rollers being located between the press and" drier" rolls,

and cam devices for-elevating. and "depressing the lower oneofsa idgroovedrollersto permit threading the web ofpa-p'er' through the machine as described.

6. A device for imparting creases tothe opposite sides'of awe'b of moving paper comprising, a pair of grooved rollers arranged on the opposite sides" of the web, a plurality of rollers for supporting the web and arranged in a horizontal lane for causing the web to approach'the'creasing rollers in a straight line, said creasing'rollere being, located-between two'of' the supporting rollers, means for operating the creasing rollers, means for operating the web-supporting rollers, said devicebeing'located between the lastpair ofpr'ess rolls and the first drier roll.

7. A devicefor imparting creases to the opposite sides of a web of" moving paper comprising a pair of grooved rollers arranged on the opposite sides ofthe web, and in the same vertical plane, a plurality of rollers for supporting'theweb and arranged in a horizontal plane for causing theweb to approach the creasing rollers in a straight line, said creasing rollers being located between two of the supporting rollers, means for operating the creasing rollers at the same speed as the moving web of paper, means for operating the web-supporting rolls, as described, said device being located between the last pair of press rolls and the first drier roll.

8. A device for imparting creases to the opposite sides of a moist web of moving paper and comprising a pair of grooved rollers, the elevations or ridges of said rollers being oppositely located, said rollers being located between the press and drier rolls,

HAROLD F. DUN BAR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner or ratentl,

7 Washington, D. G. i