US1606307A - Cushioned pad - Google Patents

Description

Nov. 9, 1926. www? R. Vl.. Looms si' Al.

cusHIoNn PAD Filed Nov. 28, 1923 v desired thickness an Patented. Nov. 9, 19.265.

-ai s RALPH D. Loomis, or BEDFORD, AND wILnrAM n. THAXTER, 11n-or soMEnvrLDE,

MASSACHUSETTS; SAID THAx'rEa ASsIGNon. To SAID Loomis'.

CUSHIONED PAD.

Application led November 28 1923. Serial No. 677,499. l

This invention relates vto laminated pads composed of a compressible layer of cotton batting constituting a cushion and a paper layer cemented -to the compressible layer.

Pads of this character are in general use for.

cushioning `boxed candy, a pad of suitable size being placed in a box w1th a charge of1 candy. v

It is very desirable that in a pad of this lo character the outer surface of the paper layer be smooth and free from discoloration. Itis a difficult matter, however, in cement- .ing the layers together to prevent the cement which is applied in liquid formfrom seeping l5 through the paper layer and causingwarp# ing or cockling of this layer and discoloration of its outer surface, this distortion and discoloration being serious objections.

The object of our invention is' to produce la pad which is free from the said objections. This ob'ect is attained by the im rovements hereina er described and claimed.

Of the accompanying drawings forming a part of the specification,- Fig. 1 is a side'view of a pad-looking towar'd the side formed by the paper layer. Fig. 2 is an enlarged section on line 2 2 of Fig. 1.

Fig. 3 is a fragmentary perspective Viewv showing a corner portion of the pad, the layers being partially separated to show 'the disposition of the droplets constituting the bonding material interposed between the layers as hereinafter described. v

Fig. 4 is a side view of a machine4 adapted to produce pads embodying theinvention. N- Fig. 5 is a .top plan view of the machine.

Fig. 6 is an enlarged section of the sprayer. f 4o The same reference characters indicate the same parts in all of the gurs.

' In the drawings 12 designatesthe paper layer and 13 the compressible layer of apad such asis used to cushion candy in a box. The paper layer' is composed of kraft lor other suitable flexible paper, and the compressible layer is composed of ordinary commercial cotton battin which may be of any ismuch thicker than particles 14 represented by dots in Figs'. 2`

a# and 3. The droplets are much smaller than ers is interposed cern` naturaldropsand are formed byspraying a sultable adhesive liquid such as sodium sili' cate diluted with Water until sufliciently thin to be atomized or sprayed by al sprayer 16 such as that shown by' Fig. 6, which repre- `6` sents in section the well-knownD'e Vilbis sprayer. The droplets or particles 14 are therefore of a size determined by the action `of the sprayer, and they are necessarily so minute that they are adapted to unite the 65 layers without penetrating to the outer surface vof the paper layer 12. When the bonding material has been in terposedvbetween the laye-rs, suitable pres# sure -is exerted on their outer surfaces to insure theiradhesion to each other.

Commercial cotton batting is so limpsoft and conformable, hat when pressed against a layer of kraft pa the form of the paper is not affected by the batting. In other words, the batting cannot indent the paper and form projections and hollows onlthe outer surface thereof. ,l The distribution of the bonding material' in minute droplets, which do not penetrate to the outer surface of the paper, prevents' the bonding material4 from warping or lcockling the papery and discloring its outer surface. The improved pad is therefore characterized by the fact that the contour of the paper layer is not S5 changed either by the compressible layer or, `by the bonding material, and the externaf surface. of the paper layer is not discolored .layer 12 and a compressible layer 13 each much longer than 'a-nf operative pad, Iand I progressively move and guide said elongated layers to cause the same to meet at a redetermined point andf-to move side by si e and in contact with eachother fromlthe meeting point. The paper layer 12 may be wound on a spool or .drum 17 on a shaft 19 forming 100 an element of the machine shown by Figs. 4 and 5. The compressible layer 13 niay be disposed in folds in a box 20 as Shown by Fig. 1. The twolayers are guided and progressivel point in icated at 21 (Fig. 4). The bon ing material is sprayed upon proximatesurp f moved in unison to a meetin r1015 the action of pressure rolls23 bearing on the layer 13 and located above' means sup orting the layer 12, the layers adhere to eac other shown by and form a laminated web which moves onward from the meeting point and is transvers'ely severed at intervals into sections.

constitntinr operative pads one of which is ig. 1. The machine may include a fixed shearing cutter 25 and a revolving shearing cutter 26 adapted to cooperate with the fixed cutter l in severing the web.

superimposed on the paper layer and conforming thereto without affecting the form of the external surface thereof, and .cementitious bonding materialinterposed in minute spaced apart atomized droplets or articles between said layers and uniting their meeting surfaces, the said dropletsv uniting the' layers without penetrating to the outer. surfaceof the iper layer, so that the pad is characterize by the fact that the contour of the paper layer, is not changed by the compressible layer and by the bonding material, andthe external surface of the paper layer is not discolored by the bonding material.

In testimony whereof we have affixed our signatures.

RALPH LWLOOMIS. i WILLIAM H. THAXTER, JR.

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