US1248258A - Marking device for paper. - Google Patents

Description

H. BROWN.

MARKING DEVICE FOR PAPER APPLICATION FILED FEB-23.1912.

l w fifiav Patented; Nov 2?. 1917.

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specification of Letters Eatent.

Patented Nov. 2?, illiiilzf.

I Application filed February 23, 1912. SeriaI Eto. 579,245. I

To all whom it may concern." I

Be it known that l, Howann Brown, a citizen of the United States of erica, residing at Springfield, in the county of Hampden and State of Massachusetts, have invented new and useful Improvements in Marking Devices for Paper, of which the following is a specification.

This invention 7 relates to improvements in paper machines and has for its object the .provision of means for water marhng the paper in the process of its manufacture. The mark has the general characteristics of so called water marks, but is applied after the paper has been thoroughly formed into a sheet but before the paper passes all of the drying rollers. I Y

By use of the means here disclosed, a mark of relatively intricate design and having fine lines, as compared with ordinary watermarks, may be impressed in the paper by means of a suitable plate, such as an electrotype, and the rigid impression plate is so mounted as to be adjustable and control- .lablein its pressure on the paper when the paper is in this partially formed state, the -reflect of the plate being to produce a mark which is very clear cut in its outlines and details.

In the particular embodiment herein disclosed, "the roll carrying the stereotype plates may be moved endwise to shift the location of the plates so that in case the strip of paper shifts sidewiseon'the lower roll, the dies can be moved correspondingly and the impression can thus be held exactly in the center of the sheet or localized as desired.

in the drawings, forming part oi this application,

Figure 1 is a front elevation view of the marking or embossing roller, and illustrating a sheet of paper passing thereunder and over another or press roller.

Fig? 2 is a transverse, sectional view on the line 22 of Fig. 1 showing the stereotype plates which contain the figure to he embossed and which contact with the paper as it passes through the machine for transierring this figure or mark to the paper.

Fig. 3 is "a view similar to Fig. 2 but showing the marking or embossing roller with its stereotyped plate out of contact with the paper, and the'supporting rings which are located on the end of this roller in contact with the roller below.

Fig. at is a view showing the detailed construction for adjusting the embossing roller longitudinally of the machine.

Fig. 5 isa diagrammatic view illustrating the path' of the paper through a portion of the paper marking machine.

The progress of the paper through the.

driers and the marking device is diagrammatically illustrated in Fig. 5. Referring to the drawings in :detail, a designates the framework of a paper-male ing machine in which the rollers h and 0 are mounted, the boxes which receive the supporting shafts of these rollers being designated by the letters 0? and e,the roller 0 being the marking or embossing roller on which the stereotyped plates f are mounted or secured and the roller 1) being located below the roller 0 over which the sheet of paper passes, the paper at this point being thoroughly formed but having not yet passed all of the drying rollers. Secured to the box 0 is a weight device, by means or which the roller 0 is normally held downward into close contact with the rcller b. This Weight device comprises an arm 72. which is secured to the framework a, and pivotaliy connected to this arm 72. is a second arm 2' that bears directly on the rod 5 which is secured to the hon e.

Suspended from the arm 71 is a weight it which I may be provided with, additional weights, indicated at ti it should he understood that two weight devices are used, one at each end of the roller.

Secured to the ends of the roller 0 are hearing or supporting rings m which are adapted to engage the roller- 3. The diameter of these-rings is slightly less than the distance from the outer periphery of the stereotyped plates 7 so that when the sheet of paper is passing beneath the marhn roll 0 the weight of this roll is transferred to the embossing plates 7", the rings m then being away from the roll 9' as indicated in Fig. 1.

Referring now to the. longitudinal adjustmen t of the marking roll 0, o desighates a tl-slnnoed yoke-piece that is suitably secured to the'irame a directly opposite the ends p of the supporting shaft ofthe roll 0. This Ell-shaped yoke piece is provided with a threaded opening through which passes an Illtl either direction, as desired. A suitable locknut r is provided to retain the screw 9 in its adjusted osition.

The ro l c is driven by any suitable train of gearing, as illustrated at the right-hand end of Fig. 1,designated by the letter 8.

From this construction, it will be seen that I have provided a marking device .which can be readily adjusted so as to accurately position the plates f with reference to the sheet of paper which is passing throu 11 the machine, and so that the mark will always appear in the same position on each sheet, when the paper is cut intp desired sizes.

What I claim,- is

1. In a paper making machine, means for impressing a water mark on the paper when the latter is in a damp condition, comprising a roll having a rigid arcuate design plate extending beyond the surface thereof, means for adjusting said roll, whereby during the operation of the machine said design plate will come into forcible periodic contact with the paper, means comprising rings on the roll for maintaining it ,in posi -tion when the design plates are out of contact with the paper.

2. In a paper making machine, the combination of upper and lower co-acting cy1- inders, the former of which is movable both vertically and axially end-wise relative tov the latter; means for holding the upper cylinder under variable yielding pressure against the lower cylinder, a series of arouate projections affixed to the periphery of the upper cylinder and provided with watermarking faces for impressions on the web in spaced longitudinal rows; a pair of collars extending continuously around the ends of one cylinder and adapted to engage the face of the other cylinderKwhen the lower cylinder is opposite a space between said pressure roll having a hard design surface.

thereon and applied against the paper on said backing roll with a heavy regulable pressure.

fl. The method of marking paper stock in the course of its transformation from pulp to finished paper, which consists in squeezing thepaper under heavy pressure, after it has been thoroughly formed but before it passes all of the drying rolls, between a ard impression surface and "an unyielding non-heating backing roller, whereby clear- -cut mark is communicated to the paper and subsequently baked in and rendered permanent.

HOWARD BROWN. Witnesses:

KI. CLEMoNs, HARRY W. BOWEN.

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