US2291927A - Manufacture of lined wadding - Google Patents

Description

Aug. 4, 1942. 5. STATE ET AL 2,291,927

MANUFACTURE OF LINED WADDING Filed April 5, 1938 5 Sheets-Sheet l FIGJ.

' U! a Q I M WT J INVENTOKS Aug. 4, 1942. 8 STATE A 2,291,927

MANUFACTURE OF LINED WADDING Filed April 5, 1938 5 Sheets-Sheet 2 Aug. 4, 1942. 5. STATE ET AL 2,291,927

MANUFACTURE OF LINED WADDING Filed April 5, 1938 5 Sheets-Sheet 3 INVEN DRS .ray

Aug. 4, 1942. 5, STATE E1- A| 2,291,927

MANUFACTURE OF LINED WADDING FIGA.

I'NVENTORS. $4M M 4% 21/ fl y Aug. 4, 1942. v s. STATE ET AL j 2,291,927

MANUFACTURE OF LINED WADDING Filed April 5, 1938 -5 Sheets-Sheet 5 s INVENTORS j/m M w PatentedAug. 4, i942 MANUFACTURE OF LINED WADDING Application April 5, 1938, Serial No. 200,230

. 1 Qlaim.

This invention relates to a process and plant for manufacturing wadding from kapok and covering same on one or both sides with paper, or

other suitable covering material hereinafter rekapok has been carded therein it is delivered in the form of a thin film or web on to a lattice and deposited therefrom on to the surface of a travelling sheet of paper that has sprayed thereon an adhesive immediately in advance of its passing over a supporting surface where it has laid upon it the thin film or web which may be built up to produce a wedding of required thickness by being folded backwards and forwards on the paper by a folding machine and passed to an arrangement of pressing rollers for pressing the wadding into intimate contact with the adhesive coated paper. The covered wedding may then be passed between supporting rollers to be cut by circular slitting knives into strips of required widths preparatory to being wound into rolls. If the wedding is to be enclosed between two sheets of paper, a sheet of paper that has previously been sprayed or otherwise treated with adhesive is caused to pass between a pressing roller and the uncovered surface of the wadding so that the adhesive coated surface of the paper is pressed into intimate contact with the wadding. The latter together with its paper coverings may then be cut into strips and wound into rolls.

In the accompanying drawings:

Fig. 1 is an elevation of an automatic hopper feed and the feeding end of a Garnett machine.

Fig. 2 is an elevation of the delivery end of the Garnett machine and part of a lattice or endless sheet for traversing the film of carded ka-pok to a folding machine.

Fig. 3'is an elevation showing the remainder of the lattice or endlesssheet and folding machine also spraying apparatus for spraying the paper with adhesive.

'Fig. 4 is an end view of the paper traversing and spraying mechanism, and

Fig. 5 is a plan of the apparatus shown in Fig. 4.

A indicates an automatic hopper feed which may be of any suitable known type and into which the rawor untreated kapok is placed. B

treated kapok is delivered from the automatic feed A and passed between such apron and a pressing roller 0 and between feed rollers D to the swift E where it is subjected to the action of a clearer roller F and worker rollers G and is then raised to the surface by a brush fancy roller H and a stripper roller J and is then transferred from the swift E to a dofier K from which it is passed on to an endless sheet L and between rollers M, and between rollers M and on to a sheet of paper N that has been laid upon a creeper sheet 0 of a folding machine- This creeper sheet is mounted on rollers o 0 on a carriage that travels backwards and. forwards along rails 0 arranged at right angles to the endless sheet L for laying the thin film or web in lap form. of the creeper sheet 0 during the time that the latter is moving slowly in the direction indicated by the arrow 0 for building up the web into a wadding of any required thickness. The sheet of paper N is taken from a roll 1:. under a guide roller n on a frame n and over a'supporting table a preparatory to being passed over the surface of the bottom creeper sheet 0 and before the thin film or web passes from the endless sheet L. The supporting table 11. occupies a position between the guide roller n and thevadjacent portion of the bottom creepersheet. Situated above the table are one or more spraying nozzles P through which adhesive under pressure is sprayed on to the upper surface of the paper. These spraying nozzles may be stationary or they may be movably mounted for spraying the adhesive continuously over the whole surface of the paper. In the examples shown they are movably mounted and arranged to receive an oscillatory movement in the direction indicated by the arrows. p in Fig. 3 through a reciprocating bar p that is formed with openings p for the passage of arms 12 which are fixed to pivotally mounted spraying devices 1). The bar p may receive an endwise movement by a connecting rod 12 crank p driven by a belt or chain p from any suitable driving part of the machine and at any required speed.

In the'construction shown in Fig. 3 each spraying device is provided with two flexible couplings p, p. The coupling 12 is connected to a pipe p which may lead to a source of compressed air and be provided with an adjusting cock p". The other flexible coupling 12 is connected in like manner to, a pipe p" leading to an adhesive supply and provided with an adjusting cock p Situated in advance of the front roller 0 appertaining to the bottom creeper sheet 0 is a pair of indicates a feed apron on to which the partly pressing rollers Q Q which are followed by a supporting roller R and slitting knives and discs S 8*. Situated in iront oi the latter is a drum T and rolling up roller T for rolling up the covered wadding into a roll. To operate the machine the paper is taken from the roll n, laid over the bottom creeper sheet 0, passed between the pressing rollers Q, Q and between the slitting knives and discs to the winding up roller T The spraying operation is then commenced and the thinfllm or web deposited from the sheet L on to the surface of the adhesive covered paper. After the wadding has been laid backwards and forwards upon itself to build up a wadding of the required thickness which can be controlled by regulating the speed of travel of the creeper sheet or the speed or operation of the carding or Garnett machine or both, it passes with the pap r covering between the pressing rollers Q, Q and slitting knives to the drum T and rolling up roller T where it is wound into rolls. To cover both surfaces or the wadding with paper another roll of paper U is supported in bearings at the delivery end of the machine and a sheet'of paper u taken therefrom and passed under a guide roller u and over a table 1!. where it is subjected to a spraying operation by spraying devices P in the manner previously described. The sprayed paper is then passed over a guide roller 1: and between the pressing rollers Q and Q so that its adhesive covered surface is pressed into intimate contact with the wadding. The latter with its two coverings is then cut and wound into rolls in the manner previously described. The mechanisms for driving the various parts of the carding or Garnett machine and the folding machine have not been described as such machines are well-known in the trade.

What we claim as our invention and desire to secure by Letters Patent in the United States is:

Apparatus for the manufacture of lined wadding comprising; a conveyor, means for feeding. opening and delivering kapok or the like to one portion of the conveyor. said conveyor having a discharge end, a travelling support continuously movable in one direction transversely of the conveyor beneath its discharge end substantially in a horizontal plane, means operative to reciprocate said support'longitudinally oi the conveyor during its travel, a flat table at one side of the conveyor and in the plane of and in close proximity to said travelling support, paper web feeding means associated with said table for feeding paper flatly thereon, means on the opposite side of said conveyor for drawing the paper web flatly over said table and support transversely beneath the discharge end of the conveyor to receive material deposited by the conveyor, spray means above said table operative to spread adhesive over and upon the paper as it is drawn across the table, and all said support, table, paper web feeding and drawing means. and the spray means being connected for reciprocation in unison with the travelling support, whereby the material discharged fi cm the conveyor is lapped upon itself on the paper web with the bottom lap in direct engagement with the adhesive coating thereon.

SOLOMON STATE. 7 CHARLES WALTER IKIN LEATHER.

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