US1386411A - Watermarking device - Google Patents

Description

F. P. KLUND.

WATERMARKING DEVICE.

APPLICATION FILED JUNE 1. 1920.

1,386,41 1, Patentd Aug. 2, 1921.

UNITED STATES PATENT OFFICE.

FREDERIC P. KLUNI), OF ERIE, PENNSYLVANIA, ASSIGNOR- TO HAMMERMILL PAPER COMPANY, OF ERIE, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

'WATEBMARKING DEVICE.

Specification of Letters Patent.

Patented Aug. 2, 1921.

To all whom. it may concern:

Be it known that I, Fnnnnnro P. KLUND, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented certain new and useful Im rovements in Watermarking Devices; and do hereby declare the fol-. lowing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, forming part of this specification.

My invention relates to improvements in paper watermarking rolls operating on the sheet against one of the press, drier or other rolls of a paper making machine, to watermark papers during the process of their manufacture.

Heretofore watermarking rolls for this purpose have been provided with watermarking devices secured to the peripheries thereof adapted to contact with the damp-sheet and impress the mark therein. These marks are spaced some distance apart on the roll, and in order to prevent the rolls contacting with the sheet between the marking devices, and to provide for the continuous rotation of the roll, continuous annular rings have been provided on the roll at the sides of the marking devices thereon, which operate on bond and other smooth surfaced papers to successfully watermark the same without leaving any trace thereof of the contact of the rings therewith. When, however, it is desired to watermark crape and other uneven surfaced papers the rings at the sides of the watermarking devices operate to leave their imprint upon the paper insuch a manner as to flatten the surface of the sheet contacting therewith and make it impossible to succemfully watermark such papers therewith.

To overcome this difliculty I make the rolls with the usual marking devices thereon, spaced apart circumferentially around the roll at such distances apart as is desirable, and without supporting rings at the sides thereof, and in the spaces betweenthe markin devices I place supporting devices of any esired design which will sufliciently fill the space between the marking devices so as to provide a bearing surface for the roll between the marking devices; and while these supporting devices will be impressed upon the papers marked, they are so designed as to be more or less ornamental and not detract from the appearance of the watermark in the paper, when finished. In this manner I can readily and successfully mark crape and other rough surfaced papers withoutmarring or otherwise injuring the surface thereof, which I am not aware of heretofore having been done by means of known watermarking device.

an 'Ihe features of my invention are hereinafter fully set forth and described and illustrated in the accompanying drawings in which:

Figure 1, is a plan view of a section of the surface of a watermarking roll illustrating my invention.

Fig. 2, is an end view of the shell of such a roll.

In these drawings I have not illustrated the construction or mounting of the marking-roll, as these are matters of common lmowledge in the art and form no part of my invention.

In the drawings A indicates a ring or band, preferably of rubber or other resilient substance adapted to fit around a marking roll (not shown), B indicates watermarking devices secured to the surface of the ring A, spaced at a suitable distance apart circumferentially as to locate the marks in the paper as desired.

In the spaces A between the marking devices B on said ring, I secure supporting devices D. These supporting devicesI preferably make of ornamental design of any convenient shape as will so occupy the space between the marking devices as to furnish such a more or less continuous supporting surface that no art of the'roll except the marking devices and ornamental supportin devices D will contact with the paper being watermarked, during the operation of watermarking the same. In this manner I am enabled to successfully watermark crape and other rough surfaced papers of that type without injuring .or marring the surclaim as new and desire to secure by Letters Patent is 1. In a roll for marking crape paper, spaced marking devices on its periphery 'adapted to contact with the paper, and

means in line with the marking devices adapted to support the roll from contact with the paper when the marking devices thereon are out of contact therewith.

2. Ina roll for marking crape paper during the process of its manufacture, a line of spaced marking devices around the circumference of the roll adapted to contact with and impress the same upon a sheet of damp crape paper along the lines of the mark, and

FREDERIG P. KLUND.

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