US2376243A - Device for applying viscous liquids - Google Patents

Description

May 15, 1945.

R. K. FRASER DEVICE FOR APPLYING VISCOUS LIQUIDS Filed April 8, 1943 Patented May 15, 1945 7 V 2,376,243 7 preview FQRA PLYING visoo-Us LIQUIDS Roland Kennedy Fraser, ADdOVBI MELSS assignv or to Tyer Rubber' Company, Andover, Mass., i a corporation of Massachusetts ApplicationA -il 5,1943, Serial No. 482,287 5 Claims. (01. 9 1-625) The present invention relates to devices for applying viscous liquids as, for example, cement to rubberized fabric in the manufacture of waterproof garments.

In the manufacture practice-after the several parts have been cut out from the rubberized fabric to the, desired shapes,

to applyva strip or band of cement'to the edges of the material where they are to be joined, these parts then lying flat upon the table, orbe'nch.

At the present time the application of cement is made either with a brush or by the finger fof the operator from a supplyof cement in an open can or other container. These methods are objectionable because of the difliculty in regulating the amount of cement that is applied, there'being a tendency to apply tooheavy a coating by the' brush or finger when'it is first used immediately after clipping in the cement pot, and too light a coating'just before thebrush and finger is again dipped into the cement. Only from long experience can the operators become sufficiently skillful with the brush or. finger to "maintain a] reasonably even coating of cement. Furthermore, there is always the danger of the cement dripping from the brush or finger asrit is transferred fromthe pot to the work, and in addition, [a substantial amountof time islost in the repeated movements of the brush and finger at frequent intervals between the work and the pot.

It is the object of the present invention to produce adevice which will supply auni'forrnstrip' orband of the viscous liquid," such as cement, directly to the work from the container itself, in

such amount as" required by the work and deter mined "by the. operator, in a single continuous movement or stroke-of'the device, with 'no inter-' ruptions or loss of time, and'with'outfdangerof accidentaldripping or spattering of the-liquid on the work, all with little training or previous-experience required on the part'of theoperator';

To these ends the present invention-consists of a container for holding a. supply of liquid, such as cement, :and havin aspout with adischarge opening or slot on its underneath side and a liquid controlling lip immediately above the discharge opening, the parts being so constructed that when the container is drawn over the'WOIkIWith the spout in contact therewith, the liquid or cement will be applied uniformly to .theswork in an amount varying with the inclination atwhich the container is held;

In the accompanying drawing in which the invention is illustrated in a device'particularly designed and adaptedfor the application of cement to fiat pieces of rubber or rubberized material,

of such garments it is the Fig. 1 is a perspective showing thecomplete device; Fig. 2 is a vertical sectional view: on line ,2 2 of Fig. 1 showing the device in operative position; and Figs. 3, 4 and Sam fragmentary I verticalsections, on an enlarged scale, showing the control or regulation of the amount of cement being applied according to the inclination of the device asit is drawn over the work by the operator.

As shown in Figs. 1- and 2, the device comprises a cement container having a flat bottom. H and back I3, with sides [5 converging at the front. and an inclined front wall I! extending upwardly and outwardly'fromthebottom, the sides and bottom forming a contracted portion or spout.

" Conveniently, the bottom, back and front walls are formed in a single piece of metal with the turned over edges 19 united by solder, brazing, or: other convenient manner, .to the two side walls 1.5.

The sides 15 are separately formed, each with arounded downward extension or memberil at its front end, and with inturned flanges 23 along the front portion of its top-edge. Between the front ends of the sides is a liquid controlling lip 25 comprising the top portion 21 forming an ex,-

tension of the flanges 23 and awall portion 29 inclined to the top portion, as shown in Figs. 2-5.;

'Ihisrwall portion 29, it will be noted, is off-set from the plane of the front wall I], and tola greater extent at its lower free edge than where;

it joins the top portion 21, thus inclining .such

wall portion 29 inwardly with respecttojthe front 7 wall n.

the shape of the parts adjacent the slot being I The front wall I! terminates short 10f the free edges of this portion 29 so thata discharge opening or transverse slot is formed across the upper.

end of the container through which the liquid can 'flow'or be drawn when the device is tipped and drawn along the work, as shown in Fig.2,

such as to direct'the flow outwardly along and beneath'the wall portion 29. p

' To prevent the spilling of the liquid when the device is being used,v a top closure 3| has been provided for the front end of the container, and

to'facilitate cleaning of this'portion of the'container the closure is made removable, by having a cross-piece 33 secured to the closure by the screw 35, screwed into the cross-piece and its --boss 31, the ends of the crosspiecepas'sing beneath the flanges 23of the sides l5.

: For the convenience of the operator a handle 39 is provided, attached to the back wall of the container by means of screws M, the handle being of such length that its free end is flush with the bottom of the container so that when not in use the container is firmly supported upon its flat bottom and end of the handle, with the cement contained in the lower portion below the discharge opening 38.

The operation of the device is as follows. A suitable amount of cement having been poured into the container asit standsupon: its flat bottom II, the operator lifts it by the. handle and positioning it over the work tips the front end down into contact therewith and draws the de-; vice along the work with a firm, quick stroke. During this movement the device is in the posi tion shown in Fig. 2.

It will be noted that the extensions 2 I. adjacent, the discharge opening support the end of the:

container slightly above the surface of the work,

as shown in Figs. 3, 4 and 5. If a heavy appli-- cation of cement is desired, the device will be held by the operator with the front wall I! substantially parallel with the surface of the work, as shown in Figs. 2 and 3. In this position, the lip i's held well above the work and as thedevice is drawn along; a thick band or ribbon 43 of cement is applied of a width corresponding to the-width of the discharge opening or slit the extensions 2! also acting to prevent the lateral spreading of the cement as it leaves such opening.

Where a lighter application is desired, the operator: tips the device by elevating the handle so that the parts then assume the position shown in Fig. 4,,the extensions 21 being so shaped that the lip 25' is brought nearer the surface of the work and a thinner ribbon of. cement 45 is applied;

If a still lighter application of the cementis desired, the device-is inclined still further towards the vertical so that the lip 25' is brought still closer to the work and a still thinner ribbon of cement 41 is laid thereon. Thus the operator by varying the inclination at which the device is held while in use, regulates the amount of cement applied; It isonly necessary for the.

operator to maintain the same angle and draw.

the device at the same speed. to insure a uniform, unvarying amount of cement. upon the work. throughout the entire seam. Furthermore.

the device is so. simple to use that'only a very short time is required for the. op rator to learn the proper speed for the cement-applying stroke and inclination of the device for any particular kind of work.

All danger is. avoided of spattering. or dripping of the cementas where the. brush or finger. method. is employed, and not only is. a more uniform and. satisfactory result secured, but the cement is applied much more. expeditiously, as the supply of cement need be replenishedv only occasionally as compared with the repeated and; frequent clippings. of the brush. or finger into the cement holder. 7

At the end of the day it is only necessary to rinse. or wash out the container with the proper solvent, thusreclaiming whatever cement is. left onthe. walls and bottom of the'device, as well as leaving the device clean and ready for another days. use.

While in the accompanying" drawingthe in.- vention has been. shown asembodied in a specific construction designed: for a particularuse, it

is to be understood that it may be embodied in many other different forms and constructions within" the meaning? and scope of the appended claims; Nor is the invention necessarily Hm prising a container adapted to' be moved over thevwork irncontact therewith to apply liquid thereto, and having a front wall extending upwardly and outwardly and provided with a dis charge opening adjacent its .top end the section of the Wall between said top and the opening forming a liquidcontrolled. lip, and means extending outwamd'lly'from the, front wall adjacent the discharge openingtand the lip to prevent the spreading, of the cement laterally as it is discharged from the opening, said means having curved outer edges to engage the work for supporting the. front end of the container with the lip spaced at variable distance from the work to vary such spacing in accordance with the inclination at which" thedevice is held by the operator while it is moved over the work, thereby to regulate the rate of discharge of the liquid through said openingjand onto the work.

2. A. device for applying viscous liquids, comprising a container adapted to be moved over the work in contacttherewith to apply liquid thereto and having. at its. front enda pouring spout provided with a permanently open discharge opening, positioned on the under side of the spout and adiacent the front end thereof, a liquid control lip. above the opening, and supporting means mounted" solely upon the device adjacent the opening and extending outwardly beyond the spout. to. engage the work, said means being shaped. to. pivotally support the front end of the container with the, lip. spaced at a variable distance. from. the work in accordance with the incli'nationat which the device, is held by the operator while it. is being moved over the work.

thereby to regulate the. rate of discharge of the liquid through said. opening, and onto the Work,

the: spout being free. from. extensions at its front end topermit the. free tipping of'the device about saidsupporting means. I

3i A device for applying viscous liquids-com.- prising a containeradapted to be moved over the work in contact therewith to apply liquid thereto, and havingv afront wall extending upwardly and outwardly. provided with a permanently open discharge opening closed at its ends adjacent the top end of said wall and spaced therefromby a. narrow section of wall forming a liquid controlling lip, and supporting means mounted solely.- upon the device adjacent the opening and extending outwardly beyond said front wallito engage the work, said means being shaped pivotall-yto support the front end of the container. withthe lipv spaced at variable distance from the work in. accordance, with the inclination Zt. WhiChl the device. is held by the operator while it ismoved over the. work, thereby to regulate'ythe rate ofthe discharge of the liquid through said. opening and onto the work.

4 A, device-for applying viscous liquids, comprisingta container adaptedto be moved over the work in. contact therewith to apply liquid there to; and'having' a front wall extending upwardly and outwardly provided with a permanently open 7 discharge opening adjacent the top end thereof and spaced therefrom by a section of wall to form a liquid controlling lip, and supporting means extending outwardly from. said wall adjacent the opening to engage the work and shaped pivotally to support the front end of the container, withthe lip spaced at variable distance from the work in accordance with the inclination at which the device is held by the operator while it isbeing inoved over the work, thereby to reguwork in contact therewith to apply liquid theree to, and having a substantially fiat front wall extending upwardly and outwardly thereof with a discharge opening spaced adjacent the top end thereof, the section of the front wall between said top end and the opening forming a liquid control lip, the lip being inclined downwardly and inwardly of the wall of the container, and supporting means mountedsolely upon the device and extending outwardly beyond the wall to engagev the work and shaped pivotally to support the front end of the container with the lip spaced at variable distance from the Work in accordance with the inclination at which the device is held by the operator while it is being moved over the work, thereby to regulate the rate of discharge of the liquid through said opening and onto the work.

ROLAND KENNEDY FRASER.

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