US2979023A - Automatic adhesive applicator for large wrapping paper rolls - Google Patents

Description

April 11, 1961 u. H. BENEDICT 2,979,023

AUTOMATIC ADHESIVE APPLICATOR FOR LARGE WRAPPING PAPER ROLLS Filed April 30, 1959 2 Sheets-Sheet 1 April 11, 1961 u. H. BENEDICT 2,979,023

AUTOMATIC ADHESIVE APPLICATOR FOR LARGE WRAPPING PAPER RQLLS Filed April 50, 1959 2 Sheets-Sheet 2 United States Patent AUTOMATIC ADHESIVE APPLICATOR FOR LARGE WRAPPING PAPER ROLLS Ullman H. Benedict, Atlanta, Ga., assignor to James Lees and Sons Company, Bridgeport, Pa., a corporation of Pennsylvania Filed Apr. 30, 1959, Ser. No. 809,995

Claims. (Cl. 118-43) This invention relates to dispensing apparatus and more particularly to an improved liquid applicator arid a roll stand for dispensing heavy wrapping paper in which rolls of carpet are shipped.

No completely satisfactory package for shipping large rolls of pile carpet has been devised. "Such rolls weigh several hundred pounds and may be 15 feet or more in length. Previously carpet rolls have been shipped in wooden casesor cartons, burlap rolls, and other ways. It has been found that some rolls of carpet may be shipped satisfactorily by Wrapping them in heavy kraft paper which is pulled from a roll on a stand onto the floor. The'previously rolled carpet is then rolled onto the paper and continued rolling completes the packaging because an adhesive has been applied to the far edge of the paper.

An object of the present invention, therefore, is to provide an automatic liquid adhesive applicator which applies controlled amounts of adhesive to the edge of a web or pellicle when the web travels past the liquid adhesive application station.

A further object is to provide in a liquid adhesive applicator assembly means responsive to movement of a traveling web to supply liquid adhesive to an applicator in accordance with the tension in the web.

Further objects will be apparent from the specification and drawings in which:

Fig. 1 is a top view of a dispensing roll stand for wrapping paper constructed in accordance with the present invention,

Fig. 2 is an end view of the apparatus of Fig. 1,

Fig. 3 is a front view of the lefthand portion of the structure of Fig. 1,

Fig. 4 is an enlarged fragmentary detail showing the application of adhesive to one edge of a length of wrapping paper,

Fig. 5 is an exploded perspective of the brush mounting elements shown in Fig. 4, and

Fig. 6 shows the movable guide roller which controls the operation of the liquid applicator brush.

The invention comprises essentially the provision of a liquid adhesive reservoir mounted in an elevated position above a roll stand from which desired lengths of wrapping paper can be withdrawn by the operator. The edge of the wrapping paper is carried around a first spring loaded bar and then under a second bar or guide in such a way that when the operator pulls on the free edge of the paper, the spring loaded bar rolls to a limited extent in a confined area to permit one edge of the paper to displace an applicator brush, thus opening a discharge orifice connected to the bottom of the reservoir. The adhesive flows through the orifice onto the brush and continues to apply a coating of adhesive to one edge of the wrapping paper as long as the operator is withdrawing the paper from the roll. When a sulficient amount of paper has been drawn off, the operator severs the lengths by means of a serrated or other cutting edge on the edge of the roll Patented Apr. 11, 1961 ice stand which in turn releases the tension on the edge of the spring roller, thereby permitting the brush element to spring back and close the adhesive orifice.

Referring now more particularly to the drawings, I provide a roll stand having upright frame members 10, 11, 12, and 13 at each end thereof which removably support the mandrel 14 on which is wound a length or supply of wrapping paper 15. The wrapping paper roll is exceedingly heavy and must be installed by means of some power equipment such as a fork truck. The rolls of paper are customarily 5'6 in length. Mandrel 14 is supported at each end by means of suitable blocks and supporting members indicated generally at 16 in Figs. 2 and 3. .Near one end of the roll stand I mount a liquid adhesive reservoir 20 having a removable lid 21 and a discharge line or conduit 22 provided with convenient shut-off valve 23.

An adhesive applicator which is preferably in the form of a brush or a plurality of' bristles 24 is clamped to an arm or plate 25 by means of bracket 26, bolt, and wing nut 27. The brush element 24 is provided with valve facing material 30 (Fig. 5) which is positioned to 'fit tightly against the end of conduit 22 and to seal the conduit, thus preventing flow of adhesive through the conduit when the valve face 30 is urged thereagainst by means of a compression spring 31. Arm 25 is fulcrurned against the base of a wing nut 32 threaded on stationary post 34 and the upper end of the arm 25 is slotted at 35 to receive the stationary guide post 36. As seen in Fig. 5, the opposite faces of arm 25 and bracket 26 may be roughened or knurled at 37 and 38 respectively to provide a secure and rigid grip on the brush element 24. The entire reservoir and brush assembly is supported on the frame members 10 and 11 by means of a post 40 having horizontal elements 41 and 42 which permit the reservoir 20 to be readily removed simply by sliding the assembly upwards.

The leading edge of the wrapping paper 15 is threaded upwardly and around a transversely movable guide roller assembly 45 which not only is permitted to revolve On its own axis, but which can move in a linear direction within the confinement of brackets 46 and 47 mounted at each end of the roll stand. The roller 45 is spring loaded to the left as seen in Fig. 2 by means of resilient spring elements 48, 48. Suitable bearings in the form of v either end on antifrietion bushings or bearings 54, 54

(Fig. 6).

After passing over roller 45, the paper is carried downwardly and forwardly to pass under a second guide roller assembly 60 which is journaled at either end of the frame in pillow blocks 61 and 62. A sernated or other cutting element 63 is mounted on frame members 10 and 12 by means of brackets 64 and 65 so that the paper can be carried over the cutter 63 as it is being unrolled from the supply 15.

In operation, the operator grasps the free end 70: of the paper and pulls, thus unwinding the paper from the supply 15. As soon as the operator applies this pulling force to the leading edge 70, roller 45 shifts or rolls on bushings 49 from the broken line position shown in Fig. 4 to the full line position, thus contacting the bristles of brush 24 with the edge of the paper and pivoting the arm 25 to open the end of conduit 22, thereby permitting adsufiicient length of the paper has been withdrawn, the operator applies downward pressure against the serrated knife 63, thus cutting the desired length from the roll and simultaneously removing tension from the roller 45, thereby permitting the springs 48, '48 to move the roller 45 to its original at-rest position, thus closingthe orifice 22 by means of valve face 34). p

The apparatus is relatively inexpensive to construct and provides completely automatic liquid application for wide rolls of heavy paper. It has greatly reduced the time required to wrap rolls of carpet and permits one operator to perform the operation instead of employing two or three workers heretofore necessary.

Having thus described my invention, I claim:

1.'A dispensing roll stand assembly for wrapping paper and the like which comprises aliquid resen/oir, a discharge conduit for said reservoir, a spring loaded valve at the end of said conduit, a liquid applicator mounted under said valve, a stand on which a roll of wrapping material is rotatably mounted, a guide over which a free end of said material is carried, support and control means for said guide permitting. movement of the guide from a contacting position with the applicator to an at-rest non-contacting position, and means for urging the guide into the non-contacting position.

2. Apparatus in accordance with claim 1 in which the adhesive applicator comprises a brush.

3. Apparatus in accordance with claim 1 in which the movable guide element is slidably androtatably journal'ed on the frame in an elevated position with respect to the roll of material.

4. Apparatus in accordance With claim 1 in which the valve is mounted on the applicator.

5. A dispensing roll stand assembly for wrapping paper and the like which comprises a liquid reservoir, a discharge conduit for said reservoir, a spring loaded valve at the end of said conduit, a liquid applicator mounted under said valve, a stand .on which a roll of wrapping material is rotatably mounted, a guide over which a free end of said material is carried, support and control means for said guide permitting linear movement ofthe guide from a contacting position with the applicator to an atrest non-contacting position, and spring means for urging the guide into the non-contacting position.

References Cited in the file of this patent UNITED STATES PATENTS 757,565 Norwood Apr. 19, 1904 875,005 Short May 5, 1906 "843,101 Roberts Feb. 5, 1907 848,734 Frost Apr. 2, 1907 1,326,527 Paxton Dec. 30, 1919

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