US 1597978 A
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Description (OCR text may contain errors)
Aug. 31,1926. 1,597,978
E. F. HULBERT CONTAINER TOP Filed oct. 1o. 1925 2/ Y INVENTOR. v gk i y 59m; r /Mw ATTORNEYJ Patented Aug. 31, 1926.
UNITED STATES PATENT OFFICE.
EDWIN F. HULBERT, OF MILWAUKEE, WISCONSIN, ASSIGNOR, BY MESNE ASSIGN- MENTS, T0 THE MASTER PACKAGE CORPORATION, OF DELAWARE.
Application led October 10, 1925. Serial No. 61,853.
The invention relates to'container heads. The object of the invention is to provide a removable head for fibre containers in which the head is reinforced by a metal band which assists'in making a snug fit with the siding of the container, 4and which is incorporated with the fibre parts forming the head by the method hereafter described. The invention further consists in the several features hereinafter set forth and" more particularly defined by claims at the conclusion hereof.
In the drawings, Fig. 1 is a perspective view of a container embodying the invention, arts being broken .away and parts being s own in section;
Fig. 2 is a detail sectional view `of the head during the process of manufacture;
Fig. 3 is a view similar to Fig. 2, showing the ,head in finished form in the forming apparatus.
In the drawings the numeral 4 designates the sidin of the container which is of fibre tubing, either of pressed pulp or a number of wrappings of paper or-fibre sheets, and is generally in the form of cylindrical or conical tubing.
The head 5 is of fibre, consisting of a laminated disk section 6 and one or more laminations 7 which are dished or turned down over the section 6 to form a depending annular flange 7.
A band 8 of thin sheet-steel, or other suitable sheet metal, is associated with the head and attached thereto, as shown in Figs. 2 and 3. This band has an annular base portion 9 which is adapted to t within an annular recess 10 formed in the disk section 6 of the head and a depending portion 11 disposed adjacentl the flange 8 and an edge 12 initially curved outwardly to some extent, as shown in Fig. 2.
The head and the band are firmly held together between an anvil 13 and a plunger 14 moved down against the head. This plunger is carried by another plunger 15 through rods 16, and movable relative to said plunger 15 against the action of springs 17, and being limited in tts movement by adjustable stop screws 18 carried by the plunger 15.
The plunger 15 has an annular portion 19 which is adapted to move down over the outside of the flange of the head and is provded with an annular recess 20 at its lower e ge.
Fig. 2, a formin die 21,' having an annular portion 22 slida ly mounted on the outer sides of the anvil 13, with a curved edge 23, is moved upwardly toward the plunger 15 until it reaches the position Ishown in Fig. 3, and during Athis movement it cooperates with the recess 20 to bend the edge 12 of the band and the lower edge 24 of the flange 8 into a beaded edge 25 and thereby firmly holds the disk section 6 between the dished -section 7 and the base portion 9 of the band.
The head thus formed has an annular metal ring section adapted to fit over the siding 26 of the container, asv shown in Fig. 1, and a substantially flat metal ring section formed by the base 9 adapted to abut against the top edge of said sidin The metal band forms a lining which hol s the depending fibre portion of the head in shape and prevents its distortion so that it may be readily adjusted to the container.
What I claim as my invention is:
1. A container top comprisin a fibre head provided with a depending ange and a metal band having clamping engagement with the lower edge of said flange and forming an inner metal lining for said flange and having an annular flange portion abutting against the bottom side of said head.
2. A container top having a dished fibre head comprising a flat disk portion and a portion fitting over said disk portion and provided with a depending flange, and a metal band having clamping engagement with the lower edge of said de ending flange and forming an inner meta lining for said flange and having an annular flange portion abutting against the bottom side of said flat disk portion of said head.
3. A container top having a dished fibre head comprising a flat disk portion provided with an annular recessed ed e adjacent its bottom and another portion fitting over said disk portion and provided with a de- With the parts positioned. as shown in pending flange, and a metal band having and adapted to abut against the top edge of clamping engagement with the lower edge the siding of the container. of said' depending flange and forming an In testimony whereof, I aiix my signuinner metal lining for said flange and havture.
5 ing an annular base portion fitting Within said recessed edge of said flat disk portion EDWIN F. HUIJBERT.