US1155734A - Spinning and sealing process. - Google Patents

Description

M. P; JANISCH. SPINNING AND SEALING PROCESS.

APPLICATION FILED JAN. H. 1915.

Patented Oct. 5, 1915.

auuntoz mill-mm wi'iwwomm MAXIMILLIAN P. JAN ISCH, OF MILWAUKEE, WISCONSIN, A SSIGNOR TO U. S. FIBRE BOTTLE MCHY. 00., OF MILWAUKEE, WISCONSIN, A CORPORATION OF WISCONSIN.

Specification of Letters Patent.

Patented Oct. 5, 1915.

Application filed January 11, 1915. Serial No. 1,566.

To all whom it may concern:

Be it known that I, MAXIMILLIAN P. J AN- ISCH, a citizen of the United States, residing at Milwaukee, county .of Milwaukee, and State of Wisconsin, have invented new and useful Improvements in Spinning and Sealing Processes, of which the following is a specification.

My invention relates to improvements in processes for capping the ends of cylindrical or conical paper receptacles.

The object of my invention is to devise a process for putting in the bottoms of paper bottles or other receptacles, having a cylindrical or conical form, in which the operation of inserting and securing the bottom will be facilitated and the bottom securely attached to the side walls and hermetically sealed to such walls. A In the drawingsFigure 1 is a side elevation, partly in section, of apparatus employed in carrying out my process and illustrating the initial step or steps thereof. Fig. 2 is a similar View, illustrating another portion of my improved process. Fig. 3 is a side elevation, partly in section, illustrating the means which Iemploy for folding the marginal portions of the bottom and side walls of a bottle or other paper receptacle into interlapping, interlocking and sealed rela-' tion. Fig. 4 is a similar view, illustrating the completion of that step in my process, tEhe initial portion of which is illustrated in Like parts are identified by the same reference characters throughout the several views.

In carrying out'my improved process, I employ 'a pan A for hot paraffin or other sealing material, the same being kept hot by any suitable means, heating coils A being illustrated. The paraffin pan is preferably divided into compartments a, a, the latter being provided with a pedestal B. I form the side walls of my receptacles by rolling paper blanks into cylindrical or conical form and securing the margins together to form the members E, shown in Fig. 1, the upper margins of the blanks being connected with suitable mouth pieces E. I also form bottom members by compressing disk shaped paper or fibrous blanks into the form of an inverted cup, thus providing a circular bottom C for my receptacle, which has a downturned circular flange D. The pedestal B a support for a series of bottom members and side wall members, as shown.

The bottom members are secured in position within the lower mar in of the side wall member E, as follows: ach member E is lifted and placed in the compartment a with its lower margin immersed in the sealing material. It is then lifted out of this compartment and forced downwardly over a bottom member C, which has previously been placed upon the pedestal B. The flange D will now lap upon the inner surface of the member E at its base. The member E will now be lifted and will carry with it the bottom member, after which the lower margin of the member E, together with the flange D of the bottom member, will be folded inwardly to form an interlapping joint, the folding operation being performed while the material is softened by the hot paraffin or other sealing material, said sealing material being thus not only utilized to hermetically seal the joint, but to facilitate the foldingoperation by softening the paper or other fibrous material of which the recep heated, and convenient means for heating the same being provided by a gas burner at G. v

I am aware that it is not new to fold the margins of the bottom and side members. of paper receptacles together to form an interlocking lapped joint, but I believe that I am the first to devise a process which facilitates such folding operations and also hermetically seals the joint by performing the folding operation under the influence of heat and with the folding margins softened by a sealing material, which penetrates the fiber of which the separate receptacle is composed.

I claim 4 1. The process of inserting bottoms in paper receptacles, which consists1st, in softening the margin of the side Wall with a heated sealing material, and 2nd, inserting the bottom and interfolding the margins of the bottom and side Walls upon each other and pressing them together while said sealing material is hot.

2. The. process of forming paper receptacles, which consists1st, in providing bottom members having the form of an inverted cup and also providing side Wall members having circular loWer margins adapted to receive the cup shaped bottom members; 2nd, supporting said cup shaped bottom members; 3rd, immersing the lower margins of the side Wall members in a heated sealing material, and applying the same While hot to the margins of the bottom members; and 4th, applying the interlapping margins of the side and bottom members to a heated folding die, While such margins are softened by the sealing material, and utilizing said die to press and fold said margins upon eachother.

In testimony whereof I aflix my signature in the presence of two Witnesses.

MAXIMILLIAN P. JANISGH. Witnesses:

LEVERETT C. WHEELER, IRMA D. BREMER.

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