US1642717A

US1642717A - Method of manufacturing receptacles

Info

Publication number: US1642717A
Application number: US54581A
Authority: US
Inventors: Bieber Rudolf Johannes
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-09-24
Filing date: 1925-09-04
Publication date: 1927-09-20
Anticipated expiration: 1944-09-20
Also published as: GB240434A; FR602781A

Description

Patented Sept. 20, 1927.

UNITED STATES RUDOLF JOHANNES IBIEBER, or HAMBURG, GERMANY.

L, METHOD or MANUFACTURING RECEPTAGLES.-

Nc Drawing. Application filed September 4, 1925, Serial No. 54,581, and in Germany September 24, 1924.

It has been proposed to make receptacles, vessels, boxes, pipes, and other hollow bodies in one or in sections by constructing the walls from thin wooden sheets, which are superposed in layers, and the pores or cells filled up by impregnating or preserving.

means. In so superposing the divers layers, their fibres are so directed that the fibres of one layer run crosswise to those of the next layer. Such impregnated wooden plates with crosswise running fibres can be worked upon by stamping, embossing, drawing or the like. however, such treatment has the drawback, that the mechanical working upon, if really durably well shaped receptacles are to be 'made, takes comparatively long time, and therefore does not allow a' reasonable wholesale manufacture. Moreover, with the known method the consump-- tion' of impregnating matter is very considk erable and therefore expensive.

These drawbacks are removed by the present invention in such manner that two or more layers'of sheets glued together are used, between each two of leaf-like thin sheets ofwood n? layer is arranged consisting of vegetable fibresin a condition or state in which they are not naturally grown, for instance in the shape of paper, card-board or the like,

the so composed plate or compound sheet being turned into the desired shape of a receptacle by pressing. The vegetable fibres are preferably disposed irregularly.

Extensive trials have proved that it is possible to turn such plates, without being previously impregnated, directly into hollow -bodies or receptacles very expeditiously,

preferably by applying heat. In this manner for instance boxes or similar receptacles and vessels can be made from two veneer layers with an intermediate layer of paper or of three veneer layers (or more) with two intermediate layers (or more respectively) of vegetable fibres. It has been proved that receptacles made in this way retain their original shape any lengthof time, and the walls have the same advantage as such made of wood layers, the fibres'of which run crosswise.

In order to increase the stability and the faculty of the receptacle retaining the original shape it is of advantage to create longitudinal sharp indentations by pressing or embossing. The strains that may arise after some time owing to humidity of air, or for" similar reasons will be outbalanced by such:

sharp indentations orfurrows.

, I practically carry out my method in this way, that I placefathinveneer of. wood on the plate of a press, thereon a thin cardboard 'glued on both sides, and finally a second veneer of wood, and press .these three lubricant for instance glycerine, to make the surface smooth, so as to expedite the operation. 7/

I claim:

1." The method which comprises providing two thin Wood veneers of paper-like thickness with an intermediate thin fibrous reinforcing sheet also of paper-like'thickness, and pressing the composite sheet thusiproduced into a dished form.

2. The method of making. receptacles which comprises applying pressure to an arrangement of two thin wood veneers of paper-like thickness with an intermediate thin fibrous reinforcing sheet of paper-like thickness to cause them to adhere,,and then pressing the composite sheet thus produced into a dished form. I

3. The. method of making receptacles which comprises applying heat and pressure to an arrangement of two thin wood veneers of paper-like thickness with an intermediate thin fibrous reinforcing sheet also of paperof making receptacles like thickness, to cause them to adhere, and

then pressing the composite sheet thus formed, with the application of heat, into a dished form. .7

r 4. The method of making receptacles which comprises arranging a thin fabricated fibrous reinforcing sheet of paper-like thickness coated with an adhesive, between two thin wood veneers also ofpaper-like thickness, the relative thicknesses of said sheet and veneers being such that the sheet constitutes a material support for said veneers, pressing said sheet andveneers into adherence, and further pressing the composite sheet thus produced into a dished form.

5. A receptacle comprising a body having J an impressed dished shape, comprising an integral sheet including thin wood veneers integral sheet including thin wood veneers of paper-like thickness in adherence to an of paper-like thickness in adherence to an intermediate sheet of paper, the relative intermediate sheet of fabricated fibrous maslight thicknesses of sai veneers and sheet 5 terial also of paper-like thickness, the relabeing such that the latter constitutes a mate- 15 tive slight thickness of said veneers and sheet rial reinforcement for said veneers.

beingsuch that the latter constitutes amate- In testimony whereof I have signed my rial reinforcement for said veneers. name to this specification.

-6. A receptacle comprising a body having 10 an impressed dished shape, comprising an v RUDOLF JOHANNES BIEBER;