US2707933A - Wall paper trimming and pasting machine - Google Patents

Description

C. W. HESSON WALL PAPER TRIMMING 5ND PASTING MACHINE May 10, 1955 2 Sheets-Sheet 2 Filed Aug. 5, 1952 INVENTOR. CH/IRLESh/ Hg sswv BY M 2% Arromvsv United States Patent 9 WALL PAPER TRIMMING AND PASTING MACHINE Charles W. Hesson, Louisville, Ky.

Application August 5, 1952, Serial No. 302,843

8 Claims. (Cl. 118-38) This invention relates to an apparatus for trimming and pasting paper webs, and relates in particular to a machine for applying paste to wall paper.

It is an object of the invention to provide a machine which will apply a coat of paste to a paper web fed through the machine, the paste layer being of reduced parent upon consideration of the following description H taken in connection with the accompanying drawing illustrating a preferred embodiment of the invention by way of example; and wherein:

Figure 1 is a plan view of an embodiment of the invention;

Figure 1-A is a section view of a detail;

Figure 2 is a section taken on line IIII of Figure 1;

Figure 3 is a side elevation of a detail;

Figure 4 is a side elevation showing the invention applied to a work table;

Figure 5 is a plan view showing a border pasting attachment;

Figure 6 is a side view of Figure 5 with parts in section.

Referring to the drawing there is shown a frame comprising side plates 1, 1, an end plate 2, and suitable bracing members. At one end, the frame carries two hangers 4 and 4', which may be held on the frame by bolts 5 or the like, and these hangers have hooked ends 6 for receiving the reduced fiat ends 7 of a shaft 8 carrying a roller 9 preferably of wood. The roller 9 receives the core 11 of a roll of paper 12, this core being larger than the roller 9 so that it lies eccentrically thereon. At one end'a hub 13 slidably is received on the shaft 8 and this hub may be locked against lengthwise movement along the shaft by a set screw 14.

Hub 13 has a reduced end 15 which receives a bar 16 freely rotatable thereon the bar being held against longitudinal movement by swaging or expanding the reduced end. A similar hub 17 carrying a rotatable bar 13 is received on the other end of shaft 8. When the paper roll 12 is positioned on the roller 9 the hubs 13 and 17 are adjusted on shaft 8 so that the rotatable bars 16 and 18 engage the selvage edges of the roll of paper and thus maintains an alignment so the paper web will be properly fed into the machine. Bars 16 and 18 rotate with the paper roll. The eccentric location of the paper roll on the wooden roller 9 helps to eliminate overrunning of the paper roll when the paper is drawn rapidly off the roll.

The frame carries bearing blocks 19, 19 in which is journalled a shaft 21 having a roller 22 thereon, which may be of soft rubber or similar material. Adjacent there- 2,707,933 Patented May 10, 1955 to is a second shaft 23 carried in the bearing blocks and carrying knurled or roughened discs 24, 24' which bear lightly against roller 22. Between these discs a slightly smaller diameter filler roller 25 is provided. The shaft 21 carries discs 26, 26' mounted upon hubs 27, 27 adjustable along the shaft and held in adjusted position by set screws 28, 28. On shaft 23 are positioned cooperating discs 29, 29 which are slidable on the shaft and are biased toward the middle by springs 31, 31'. The pairs of discs 26, 29, and 26", 29 have cooperating overlapping shear edges 32, 32 and as the roll of wall paper passes downwardly between roller 22 and knurled discs 24, 24 the selvage edges of the paper are sheared or trimmed off by the shear discs. By arranging the pairs of cutter discs 26, 29 and 26, 29 horizontally, rather than vertically, the pattern repeat mark on the selvage is clearly visible from the end of the work table. The width of each selvage strip trimmed off can be adjusted by shifting the discs 26, 26 and their hubs along the shaft 21 and locking the discs in adjusted position by the set screws 28, 28'; and the springs 31, 31' maintain the discs 29, 29' in shearing contact with discs 26, 26. The knurled discs 24, 24 keep the paper in frictional contact with the roller 22 and allow wrinkles or bulges to smooth out without causing creases in the paper.

Near the ends, the frame carries bearing blocks 33, which rotatably support a shaft 34. The knurled roller 35 on this shaft comprises a knurled tube having caps 36, 36' of slightly greater outside diameter, these caps being also knurled about their peripheries. The caps may be about .014 inch larger in diameter than the knurled tube. A paste tray or trough 37 is hooked over the end plate 2 of the frame and the roller 35 dips into this trough.

A pair of arms 38, 38 are pivoted on the frame and carry a shaft 39 on which is mounted a roller 41. The arms allow roller 41 to bear on roller 35, and this roller 41 preferably is made of metal so as to apply pressure on the paper passing between the two rollers 41 and 35. As the paper is drawn between the rollers 41 and 35, the roller 35 transfers the paste to the paper. The paper travels between the raised ends 36, 36 which serve the double purpose of reducing the thickness of deposit of paste at the edges, and of allowing the paper web to properly align itself without wrinkling or twisting. The

raised edges of the roller 35 allows a heavier deposit of paste to be applied between the edges of the paper strip, and roller 41 preferably is of slightly lesser width than the paper, so as to avoid getting paste on the face of this roller. As the paper is drawn through the pasting roller it is folded manually by the operator so as to be easy to handle. The web is drawn back over the bar 43 and when the proper length is drawn through the pattern repeat mark shows on the disc 26 andis easily seen from the end of the work table. Using this bar as a guide the piece then is severed by drawing a sharp knife along the bar.

At the feed end of the machine an angle bar 44 is fastened to the sides 1, 1. By reference to Figures 1, 2 and 4 it will be seen that the work table 45 carries a pair of arms 46, 46' held on the sideof the table by screws 47. These bars are nctched at the tops and bottoms to receive the dowels or bolts 48, 49 carried in the side member. Thus, when the invention is applied to a work table the channel bar 44 rests on the end of the table and the side bars 46, 46 provide a cantilever support for the mechanism. The mechanism can be removed by tilting it upward, as shown in Figure 4 to disengage the screws 48, 49 from the side bars 46, 46. The device is further rendered compact by having arms 4, 4 folding inward as shown in Figure 3 by removing one of the screws 5, so that the apparatus can be inserted in a flat carrying case. The paste pan can be removed for cleanmg.

The operation of the invention now will be described. The machine is set up on the end of the work table by placing the angle bar at the edge, and inserting the bol s 48, 49 to cooperate with the notches in the bars. Thv arms 4, 4 are lowered and fastened in lowered position by the bolts 5. A roll of paper then is inserted on roller 9, after first insuring that the edges are even, and the bars 16, 18 are adjusted to properly locate the paper roll laterally.

The paper web is threaded between roll and discs 24, 24-, and the shear discs 26, 26' are laterally adjusted to trim off the selvage edge. By adjusting bars 16, i8 and the discs 26, 26 the web can be located to maintain the proper trimmed selvage. The web then passes between backing roller 41 and pasting roller 35 and a coat of paste is applied thereto. This coat will be lighter at the edges because of the larger diameter ends of the pasting roller, and because of this there is no tendency of the paste to creep around the edge of the paper to the pattern side. The paper is drawn through until a strip of the desired length has been pasted. This strip then is laid back as shown by the dot and dash line in Figure 2 across bar 43 and using this bar for a guide, the strip is cut off.

The marks on the selvage showing repetition of the pat tern are visible as the web passes through the shear discs, and the cutting length is gauged by these marks.

in Figures 5 and 6 an attachment for pasting the border strip is shown. This comprises a generally U- shaped frame 51 having a clip 52 at one end to slip over the edge of the paste pan, and the frame may be secured in place by a thumb screw 53. A shaft 54 is suitably journalled in the frame and carries a narrow roller 55 rotatable with the shaft. a second roller 56 threaded thereon, so it may be adjusted lengthwise of the shaft. A lock nut 57 threaded on the shaft holds the roller 56 in adjusted position. Rollers 55, 56 bear on the paste roller 35 and the frame 51 is supported thereon. These rollers 55, 56 are axially adjustable for backing different width borders.

A stub shaft 57 secured on the frame has a disc 53 movable longitudinally thereon, and biased in one direction by spring 59. The roll of border paper 61 is received on stub shaft 57 and a disc 62 on a hub 63 is adjustable along the stub so as to move the roll of border paper to the desired position on the stub shaft. A thumb screw 64 locks the disc 62 and hub in adjusted position. The disc 62 is adjusted so that the one edge of the paper aligns with the outer edge of roller 55 and by loosening paste on its surface, this coat being thicker at the middle because the strip is not backed at the middle.

I claim as my invention:

1. A wall paper pasting machine comprising a frame; a trough in said frame; a roughened paste transfer roller Shaft 54 is threaded and has t,"

mounted to dip into said trough; a second frame adapted o to be detachably mounted over the first frame to overlie the paste transfer roller; an axle on said second frame for receiving a roll of paper; a second axle on said second frame; and rollers on said second axle located to bear on said roughened roller and maintain a web of paper in contact with said roughened roller, whereby paste is transferred to said web.

2. A machine as specified in claim 1 wherein said rollers on the second axle are adjustable lengthwise of said axle.

3. A machine as specified in claim 1 wherein said second axle is threaded and is rotatably journalled in the second frame, and has a roller axially fixed and rotatable thereon and a roller threaded thereon, and means to lock the threaded roller against movement lengthwise of the axle.

4. A machine as specified in claim 1 wherein first axle carries a disc slidable along the axle; a spring biasing the disc; and a second disc adjustable along said axle, and means to lock said second disc in adjusted position.

5. In a wall paper pasting machine: a trough for holding paste; a cylindrical roller having a roughened peripheral surface; end portions on said roller of slightly larger diameter than the mid portion of said roller, the peripheries of the end portions being roughened, and said roller being mounted and arranged to dip the peripheries of said mid portion and ends into the paste in the trough; and a backing pressure roller member extending along the roller and bearing on the larger diameter end portions, whereby a sheet of paper drawn between the backing member and roller receives a coating of paste thinner at the edges than in the middle portion.

6. In a wall paper pasting and trimming machine: a pasting roller; a pair of horizontal shafts mounted in advance of the pasting roller, and arranged in horizontally spaced relation; a feed roller on one of the shafts; shear discs on said one shaft located beyond the ends of said feed roller; cooperating spaced pressure discs on said other shaft bearing on the feed roller; shear discs on said other shaft cooperating with the first shear discs for shearing the selvage of paper passing over the feed roller, the horizontal arrangement of said shafts rendering visible the pattern repeat mark on the paper as the paper passes over the feed roller.

7. An apparatus as specified in claim 6 having means for supporting a roll of paper to be unwound; and freely rotatable bars mounted for axial adjustment to engage the edges of the roll of paper.

8. A Wall paper trimming and pasting attachment comprising a frame having side plates and an end plate at one end; a paste trough having a hook over the end plate; a cross bar at the other end adapted to rest on a worktable; side arms connected to the side plates extending beyond the cross bar for attachment to the worktable to support the frame; channel bars extensibly pivoted to said side plates to receive a roll of paper; feed rollers and edge trimming means carried by the frame; and a paste applying roller located in said trough.

References Cited in the file of this patent UNITED STATES PATENTS 632,059 McCreery Aug. 29. 1899 675,007 Johnson May 28, 1901 708,419 Sproot Sept. 2, 1902 1,080,959 Eaton Dec. 9, 1913 1,131,685 Dunn et al. Mar. 16, 1915 1,184,284 Wake May 23, 1916 2,241,007 Thomas May 6, 1941 2,514,238 Hesson July 4, 1950

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