US1851761A

US1851761A - Adhesive applying device

Info

Publication number: US1851761A
Application number: US283218A
Authority: US
Inventors: Ernest P Everett
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-06-06
Filing date: 1928-06-06
Publication date: 1932-03-29
Anticipated expiration: 1949-03-29

Description

March 29, 1932. E. P. EVERETT ADHESIVE APPLYING DEVICE Filed June 6, 1928 ATTORNEY Patented Mar. 29, 1932 UNITED STATES PATENT OFFICE ERNEST P. EVERETT, OF YONKERS, NEW YORK ADHESIVE APPLYING DEVICE Application filed June 6, 1928. Serial No. 283,218.

The present invention relates to an adhesive applying device, and has particular application to the construction or formation of the rolls thereof which contact with or receive a liquid adhesive.

In the application of adhesive to paper and other materials, as in the manufacture of containers or receptacles, such as boxes, barrels, tubs and the like, trouble is frequently I experienced in adhesive drying or crystallizing on the rolls, particularly where suchrolls are constructed of metal or wood. Especially is this so, in the use of sodium silicate adhesive, for if such an adhesive be allowed to harden on metal rolls, for example, it is exceedingly difiicult, if not a practical impossibility to clean or scrape the rolls paper to tear and gum up, and this trouble is especially incident in machines for sealing fibre box flaps.

It is therefore my purpdse, with the present invention, to so construct those rolls of machines using liquid adhesive, that the trouble incident to the adhesive, particularly sodium silicate, crystallizing on the rolls is eliminated, forthe reason that the structure and composition of the rolls permits such crystallized adhesive to be quickly and easily removed from the roll, leaving the same in condition as when new. Thus machines equipped with my rolls can use a much cheaper adhesive than is possible with the present metal ings in detail, and particularly to igs. 1 and 9 2 thereof, the letter A indicates my improved or other rolls. a

A further object of the invention is to provide, in such machines, a roll head of a composition embracing, in general, a hard cementitious substance, or a fibrous material im- 5 pregnated or coated with such a substance when the roll is complete or in working condition. There are many such composite fibrous materials to be had in the open market, and for this purpose I prefer to use a roll made up of fibrous material such as paper, cardboard, fabric, or comminuted' filling materials, such as sawdust, wood flour or the like, the selected fibrous material having incorporated therewith a suitable cemen- -titious substance, such as synthetic resinous material, vulcanized rubber compositions, and the like, and the working surface of the roll itself is preferably formed with a smooth, hard coating of the cementitious material.

For the purpose of illustration we may consider the present roll or comprising a cylindrical surface of a phenolic condensation product, and specifically, as formed from a tube'of fibre composition composed of suitable fibrous material having incorporated therewith a hard, s nthetic resinous material,

in the nature of a p enolic condensation prod uct formed by the reaction of phenol and formaldehyde.

With the above recited objects and others 7 of a similar nature in view, my invention consists in the construction, combination and arrangement of parts set forth in and falling within the scope of the appended claims.

In the accompanying drawings- Fig. 1 is a cross sectional view of a roll embodying my invention.

Fig. 2 is a cross sectional view taken on the line 22 of Fig. 1 looking in the direction of the arrows.

Fig. 3 is a cross sectional view through a pair of my adhesive applying rolls in association with a pan or receptacle containing an adhesive, such as sodium silicate.

Fig. 4 is' a cross sectional view taken 90 through the pressure rolls of a machine for laminating fibrous sheets which have been coated with an adhesive. 1

Referring now to the accompan ing drawroll as an entirety, the same bein mounted upon the usual shaft B. .The roll itself comrisestheend blocks or heads 1, which may e formed of any suitable material, preferably metal, and are recessed as at 2 to reduce the weight of the same. These ends or heads are provided with central bores 3 for the passage of the shaft B. The ends or heads are circular in contour and have mounted thereon the roll 4 which, as heretofore stated, is formed of a suitable fibrous material having incorporated or thoroughly mixed therewith a ceinentitious substance, as synthetic resinous material in the nature of a phenolic condensation product indicated by the dots and dashes, as shown at 5. The working surface (S of the roll has also preferably applied thereto a relatively thin, smooth coating of the hard, phenolic condensation product. This surface coating may be in the nature of a separately applied coating, or may result from exuding material pressed during the molding or formation of the roll.

In the case of articles formed from fibrous compositions made with synthetic resins in the nature of phenolic condensation products, it will be understood that the synthetic resin is incorporated with the fibre in a fusible, flowing condition, either as a liquid or paper,

and then under the action of heat and pressure, as in molding the article, the synthetic resin will assume a hard, substantially infusible condition, and in such instances sutficient of the synthetic resin will exude to the surface and will be molded to form a smooth, hard, acid and wear-resisting surface.

The fibre composition roll 5 is mounted in any suitable manner upon the head or ends 1, as conventionally illustrated in Fig. 1.

In Fig. 3 the letter C indicates a pan or receptacle containing a liquid adhesive, such as sodium silicate shown at D, and in this instance the rolls A and A constructed similar to the roll A shown in Fig. 2 are mounted one above the other, the roll A acting as a distributing roll and taking the adhesive from the pan and transferring it to the adhesive applying roll A which appliesthe same to the paper web E,'which is to receive the adhesive, and which paper web or sheet is held in contact with the roll A by the guide rolls 7.

It will further be understood thatit may be desirable to form other rolls of themachine of such a composite fibre, that is to say, those rolls which come into contact with material to which adhesive has just been applied, and which adhesive is fresh and sticky. For example, in Fig. l, I have shown two sets of pressure rolls A, which are used to press or form a laminated fibre board F from a plurality of sheets of paper or cardboard which have had an adhesive, such as sodium silicate applied thereto.

From the foregoing description it will be understood that the purpose and aim of the invention is to provide rolls either for applying adhesive, or which may work upon materials to which adhesive had been applied, and which rolls are so constructed or constituted that certain kinds of adhesive, such as sodium silicate, may be easily removed therefrom without damaging or injuring the surface of the roll. In other words, any adhesive hardening or crystallizing on the roll, may be easily and instantly peeled or wiped or otherwise removed therefrom, thus eliminating the disadvantage incident to an adhesive, such as sodium silicate permanently adhering to metal rolls now generally in use.

WVhile I have herein shown and described one particular embodiment of my invention, I wish it to be understood that it is not limited in its useful application to all the details herein set forth by way of illustration, as modification and variation may be made without departing from the spirit of the invention or exceeding the scope of the appended claims.

What I claim is:

1. An adhesive receiving roll comprising a molded tubular body portion composed of fibrous material having a hard and set infusible phenolic condensation product mixed therewith, the working surface of said roll comprising a hard and set coating of infusible phenolic condensation product material allowing the ready removal of adhesive therefrom.

2. A glue roll for applying an adhesive to a moving web, the working surface of said roll comprising a hard and set phenolic condensation product.

3. A distributing roll for distributing adhesive from a body of the adhesive to a glue roll, the working surface of said distributing roll comprising a hard and set phenolic condensation product.

4. A pressure roll for operating on material to which an adhesive has been freshly applied, the working surface of said roll comprising a hard and set phenolic condensation product.

5. A roller for use in machines operating upon material to which an adhesive is being applied, said roller comprising a cylindrical working surface made of a phenolic condensation product permitting the ready removal of adhesive therefrom.

6. A roller for use in machines operating upon material to which an adhesive is being applied, said roller comprising a cylindrical member the working surface of which is made of a phenolic condensation product permitting the ready removal of adhesive therefrom, a shaft, and means mounting said cylindrical member in concentric relation to the shaft.

7. The combination with a moving Web and a body of sodium silicate adhesive, of means to continuously apply said adhesive to the web including a glue roll, the working surface of which comprises a phenolic condensation product.

8. The combination with a moving web and a body of sodium silicate adhesive, of means