US809846A - Method of manufacturing lined or enveloped tubes of parchment-paper. - Google Patents

Description

No. 809,846 PATENTED JAN. 9, 1906. G. H. SAOHSENRUDER. METHUD OF MANFAGTURING LINED 0R ENVELOPED TUBES 0F PARCHMBNT PAPER.

APPLICATION FILED JAN. 7, 1903.

77277572 for? UTNTTED STATES PATENT. GFFTGE.

GUSTAV HEINRICH SAGHSENRGDER, OF BARMEN, GERMANY.

METHOD OF MANUFACTURING LINED 0R ENVELOPED TUBES OF PARCHMENT-PAPER.

Specification of Letters Patent.

Patented Jan. 9, 1906.

Application filed January '7, 1903. Serial No. 138,152.

To all, IU/Lrflib it may concern/.-

Be it known that I, GUSTAV HEINRICH SAorrsENRoDER, a subject of the German Emperor, residing at Barmen, Unterbarmen, in the Province of Renish Prussia, in the Kingdom of Prussia, German Empire, have invented new and useful Improvements in Methods of Manufacturing Lined or Envel oped Tubes of Parchment-Paper, of which the following is a specification.

My said invention relates to a process of producing such tubes as are made by folding together the edges of a strip or width of parchment-paper by providing them during the formation with a lining or simultaneously therewith with an outer covering or envelop in order to strengthen the tube or impart to it a better or peculiar appearance. l/Vhen making tubes of parchment-paper, the lining or envelop gives support to the soft and weak paper, while the parchmentizing is proceeding and prevents it tearing while being formed into a tube.

According to my said invention a strip of convenient length and suitable width of raw material for the parchment-paper is passed through the usual well-known parchmentizing liquid, so as to become parchmentized and adhesive, and is then united by pressure to another strip of the material intended for the lining. The compound strip so produced is then turned up to form a tube in such a way that the lining side comes to the interior and the two edges of the strip overlap to the extent desired to form a joint. The overlap ping edges are then pressed together, and after thorough drying the tube so obtained is cut to lengths. The resulting tube must then be subjected to a water-bath to tenninate the parchmentizing and to remove the whole of the parchmentizing liquid from the tube. The simultaneous application of an outer envelop is effected by applying a strip on both sides of the strip after passing through the parchmentizing liquid, so that one of these applied strips forms the lining and the other the outer envelop of the tube eventually formed in the manner described.

In the drawings, Figure 1 represents diagrammatically in side elevation an arrange ment adapted to carry the invention into effect. Fig. 2 is a side elevation of a modification of the arrangement for applying simultaneously a lining and an outer envelop. Figs. 3, 4, and 5 show the tube'formers detached. Fig. 6 is a section of a formed but dered adhesive.

unclosed tube having a lining. Fig. 7 is a section of a Formed but unclosed tube provided with a lining and an outer envelop.

The strip of paper from which the lined or enveloped tube is to be formed is convenicn tly drawn from a roll a, thence through a trough 6, containing parchmentizing liquid. A guide or dip roller 0, under which the strip passes, is mounted in the trough. Doctors brushes or the like devices are provided to remove the superfluous liquid as it leaves the trough, whence it passes between pressingrollers (Z f. Along with the strip from the roll a the lining-strip from the roll g passes between the pressingerollers. Sullicient pressure or nip is applied by the pressing-rollers to firmly unite the two separate strips into a single compound strip 8, which traveling in. the direction of the arrows goes through an oval guide or former I, where the edges are turned up, then through the former II, which more nearly approaching the form of a circle bends the edges closer together. The stri then goes through the former III, whic 1 causes the edges to overlap. Figs. 3, 4, and 5 show the formers in front elevation. The strip 8 has now been bent to the shape shown in cross-section in Fig. 6, in which state it goes through a pair of pressing rollers i 'm, where sul'licient pressure is applied to unite the overlapping edges. As the tube leaves the press-rollers i m it is cut into convenient lengths. hen the strip of raw material suitable for parchmentizing is drawn from the roll a and through the parchmentizing liquid in trough b, the parehmentizing process is started and the strip is thereby ren- It then passes throughthe pressmg-rollers (Z f along with the lining-strip from the roll 9 and, it required, with an envelop-strip from the roll 9. The pressingrollers unite the strips together. The compound strip is formed into a tube, and the overlapping edges are pressed together by the pressing-rollers i m in the manner already described. In order to remove the parchmentizing liquid from the tube and to co1nplete the parchmentizing, the tube is led from the pressing-rollers to a water-trough h.

To produce a tube with a lining and an outer envelop, the latter, as shown in Fig. 2, is drawn upward from the roll g and passes between the pressing-rollers under the strip coming from the roll (L through the parchmentizing liquid. At the same time the strip to form the lining comes from the roll g. A

triple compound strips is thus produced, from which the tube is formed and treated in the manner already described. In the case of a tube having a lining and an envelop the edges of the respective strips are set in such a relation to each other (see Fig. 7) that the parchment material at the edges (1 effects the union of the overlapping portions.

Should it be desired not to press the tubes flat in the press-rollers i m, but to preserve them in a perfectly round form when they leave the press-rollers i m or enter the watertrough h, the strip 8 is led over a round mandrel extending from the former I through the formers II and III and into the pressing-rollers i m. The flattened tubes may, however, be transformed into round ones by the application of internal pressure. By the choice of suitable lining or enveloping fabrics tubes possessing a considerablepower of resistance to liquid or gas pressure may be obtained. These formers I II III are fixed or spaced a suitable distance apart, so that the strip is gradually bent to tubeform, and no straining, tearing, or breaking of fiber is liable to result.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is A method of manufacturing lined or enveloped tubes of parchment-paper, consisting in passing a strip of paper through a parchment- 1 GUSTAV HEINRICH SAGHSENRGDER.

Witnesses:

OTTO KoNrG, J. A. RITTERSHAUS.

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