US2732575A - faust - Google Patents

Description

Jan. 31, 1956 R. M. FAUST ,GLUING APPARATUS Filed Nov. 2-1, 1952 FIG. 2

FIG. 3

RALPH M. FAUST INVENTOR.

ATTORNEY United States Patent arouse APPARATUS Ralph M. Faust-,WestchestenllL, assignor to Swift & Company, Chicago, 11]., a. corporation. of Illinois The present invention relates to aliquid dispenser having a roll serving both as an applicator and" a valve to stop the flow of liquid when the applicator is not in use.

Surprising as it may seem. the technological advances of our time have not succeeded in replacing the glue pot and brush as' one'of the most" commonly used pieces of apparatus employed in various types of gluing. operations. Yet this traditional apparatus has many disadvantages. It is both messy and wasteful.

To successfully replace the glue pot and brush a device must be inexpensive. It must be simple to use. There must be little or no wear and substantially nothing to get out of order even with hard usage. Preferably the manual operation employed in applying glue to a surface with the apparatus will be substantially the same as the movement ordinarily made in wiping a glue brush across a similar surface. An important feature of the acceptability of such a device is whether or not it leaks glue when not in use, for if it does it has the traditional disadvantages of being wasteful and of creating a mess.

The principal object of the present invention is to produce a device that has these desirable characteristics and overcomes the disadvantages found in other apparatus for doing the same job.

An important feature of the present invention is the simplicity of the manual operation involved in gluing a surface with it. All that is required is to run'the applicator roll across the surface to be glued with a slight pressure and an even coating of glue is spread across that surface. A release of the pressure such as occurs when the dispenser is lifted at the end of a stroke immediately shuts olf the flow of glue.

A further object and advantage of the invention is that the quantity of glue laid down by the roll may be varied depending upon the job to be done, the characteristics of the glue, etc. Resetting the dispenser to apply a different amount of glue is a quick and simple operation which may be performed by the most inexperienced individual. Upon having been reset the dispenser will spread an even coating of the desired amount of glue with each stroke.

Other objects and advantages will be apparent from the following description taken in conjunction with the drawings in which:

Figure 1 is an isometric view of an embodiment of the invention;

Figure 2 is a partial section taken at line 2-2 of Figure 1; and

Figure 3 is a partial section taken at line 3-3 of Figure 2.

The illustrated embodiment comprises an applicator roll, generally 10, mounted within a housing, generally 11. To housing 11 is attached a reservoir, generally 12.

Housing 11 is made in two pieces held together by bolts 13. The housing has an inner opening 14 to receive roll 10 with the opening 14 extending through one side 15 of thehousing to form the mouth ofthe opening 14 through which roll 10 projects. The shape of the mouth of opening 14 is the same as that of a cross-section of roll 10 taken parallel to the axis of the roll to one side of said axis.

Roll 10 has a pair of projecting shafts 17 and 18 to rotatably support the roll: within the housing 11. At each end of roll 10-is a raised ridge 19 having a knurled periphery. -In-the illustrated embodiment the height of ridge 1 9 above the surface of the roll 10 is slightly less than ,6 of an. inch, but this may be varied in. other embodiments. The height of ridge 19 will have some effect upon the quantity of glue or other-liquid laid down by the dispenser.

At each end of opening 14 in housing 11 is a recess, 21 and 22- respectively, to receive shafts 17 and 18 and form bearings therefor in the housing. As will be seen in Figures 2 and 3, recesses 21 and 22 are elongated in a direction normal to side 15 of the housing to permit the rollv 10 to be moved into and out of the mouth of the opening. The elongated portion of the recesses 21-and 22 are indicated by the numbers 23 and 24, repectively.- a

Bores' 27 and 28 in housing 11 are normaltO'.Sld6' 15 and intersect recesses 21 and 22 respectively. At least a portion of bores 27 and 28 are threaded as indicated at 29 and 30. Within bore 27 is a plug 31, a spring 33, and a set screw 35 engaging threads 29. Similarly, bore 28 has a plug 32, a spring 34, and a set screw 36. The ends of plugs 31 and 32 ride on shafts 17 and 18 and under the urging of springs 33 and 34 press the roll 10 into the mouth of opening 14 to provide a liquid seal across the mouth of the opening.

Plugs 31 and 32 have risers 37 and 38 thereon which project through the inneropening in springs 33 and 34. When roll 10 is pressed into opening 14 in housing 11, this movement will be stopped by risers 37 and 38 contacting set screws 35 and 36. Thus the extent to which the roll 10 can be pushed out of the mouth of open ing 14 and back into that opening may be adjusted by changing the position of set screws 35 and 36 with re-* spect to the risers on plugs 31 and 32.

One end of reservoir 12 is screwed on to housing 11 as illustrated at 41. The opposite end of reservoir 12 has a cap 42 threaded into the reservoir as illustrated at 43. A gasket 44 is used to obtain a seal between the housing 11 and reservoir 12, while a gasket 45 is used to obtain a seal between reservoir 12 and cap 42. The interior of reservoir 12 communicates with opening 14 in housing 11 through a passage 46.

To operate the dispenser the reservoir 12 is filled with glue by removing cap 42, which cap is then replaced to seal the reservoir. To apply the glue to a surface the operator grasps the dispenser by the reservoir 12 which serves as a handle. Roll 10 is placed on the surface on which the glue is to be spread. A slight downward pressure on the dispenser pushes roll 10 out of the mouth up into opening 14 by compressing springs 33 and 34. The applicator is drawn across the surface which causes roll 10 to rotate within the housing. The rotation of the roll, plus the fact that the mouth of opening 14 has been opened by the inward movement of roll 10 causes the glue to flow out on and around the roll to be spread across the surface traversed by the roll. At the end of the stroke the relieving of the pressure on roll 10 results in the roll again sealing the mouth of opening 14 under the urging of the springs 33 and 34.

It will be noted that this movement in applying glue is substantially identical with that usually used in drawing a brush that has been previously dipped in glue across a surface. If the amount of glue dispensed is excessive, the set screws 35 and 36 may be moved closer to the ends of plugs 31 and 32 to further restrict the movement of roll 10 with respect to the mouth-of opening 14. Similarly, increasing the movement of roll 10 with respect to the mouth of opening 14 by suitable adjustment of the set screws permits the application of a greateramount of liquid from the dispenser.

It will be obvious that the described invention can be used for numerous liquids other than glue. The description of a specific embodiment was for the purpose of complying with 35 U. S. C. 112 and should not be construed as imposing unnecessary limitations upon the appended claim. Variations will be apparent to those skilled in the art, and such variations are deemed to be within the scope of the invention to the extent that they are not excluded by the limitations of the claim.

I claim:

A liquid dispenser applicator including a cylindrical roll having portions of either end thereof of greater diameter than the remainder of the roll, said portions having the periphery thereof knurled, said roll having axial shafts at each end thereof, a housing having an inner opening of greater size than the size of said roll, said inner opening extending through one side of said housing, the shape of said opening at said side being substantially identical to the shape of a cross section of said roll taken parallel to the axis of the roll to one side of said axis, said roll being mounted within said opening, said housing having recesses from said opening to receive said shafts and form bearings therefor, said recesses being elongated in a direction normal to said side to permit said roll to move toward and away from said side, said housing having bores generally normal to said side and intersecting said recesses, adjustable stop means within said bores to limit the movement of said shafts in said recesses, whereby to control the maximum distance between the edge of the inner opening of said housing and said cylindrical roll thereby to govern the amount of liquid to be dispensed by said roll, the ends of said stop means being accessible when said liquid dispenser is assembled and in an operative condition and resilient means cooperating with said stop means to urge said shafts toward said side.

References Cited in the file of this patent UNITED STATES PATENTS 83,704 Gano Nov. 3, 1868 1,000,081 Erwin Aug. 8, 1911 1,563,408 Sutherland Dec. 1, 1925 1,756,935 Alland May 6, 1930 FOREIGN PATENTS 23,428 Great Britain of 191.4 567,266 Germany Dec. 30, l932 496,670 Great Britain Dec. 5, I938 246,271 Switzerland Sept. 16, 1947

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