|Publication number||US2806443 A|
|Publication date||Sep 17, 1957|
|Filing date||Jul 29, 1954|
|Priority date||Jul 29, 1954|
|Publication number||US 2806443 A, US 2806443A, US-A-2806443, US2806443 A, US2806443A|
|Inventors||Horn Carl A, Morrow William S|
|Original Assignee||Horn Carl A, Morrow William S|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (5), Referenced by (59), Classifications (18)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Sept. 17, 1957 c. A. HORN ETAL APPARATUS FOR APPLYING ADHESIVE. IN SPOTS T0 SHEETS OF PAPER Filed July 29, 1954 FIG.
CARL A. HORN WILLIAM SMORROW INVENTORS A TTORNEY United States Patent APPARATUS non APPLYING ADHESIVE IN SPOTS T0 srnsnrs or PAPER Carl A. Horn and William S. Morrow, Fort Worth, Tex.
Application July 29, 1954, Serial No. 446,582
3 Claims. (Cl. 1183) This invention relates to tipping machines or the like for adhering layers of sheet material. Although capable of many uses, the invention is primarily directed to apparatus for pasting, gluing or otherwise bonding the surfaces of sheets of paper or other sheet material along corresponding edges thereof.
An object of the invention is to provide a tipping machine wherein the pressure applied by the glue or paste dispensing tips on the stacked sheets of paper is substantially uniform throughout the stacking operation.
Another object is to provide a tipping machine wherein the previously applied moist glue or other adhesive on the sheets below the top sheet is spread as additional bonding fluid is applied.
A further object is to provide a long stroke machine for the described purpose and whereby the operation may be stopped in time to make necessary adjustments, such as repositioning a top sheet which is not properly aligned.
Another object is to provide a tipping machine wherein the tank or reservoir holding the supply of glue or paste does not require frequent cleaning, yet one which may be quickly and conveniently cleaned when required.
A further object is to provide a tipping machine having aligned depending bonding fluid outlets capable of dispensing paste or glue on stacks of paper of various widths and wherein the outlets beyond the edges of the stacked paper are inoperative.
These and other objects of the invention will become apparent from the following description and accompanying drawings, wherein:
Figure 1 is a broken prospective view of a tipping machine embodying the features of the invention.
Figure 2 is an enlarged broken transverse sectional view of the bonding fluid reservoir and one of the dispensing tips connected therewith, and t Figure 3 is a broken perspective view of a stack of sheet material bonded by a tipping machine in accordance with the present invention.
In the drawing, the numeral designates a table including a top 11, sides 12 and legs 13. While a table 10 is shown and described for the purpose of exemplifying the invention, it is to be understood that other supporting means may be employed by those versed in the art, and which other means may fall within the scope of the appended claims.
The tipping machine shown includes a relatively long rectangular reservoir or tank 14 having equally spaced aligned fluid dispensing tips 15 projecting from the bottom thereof. The length of the tank 14 and the number and spacing of the tips 15 are in accordance with the maximum lengths or widths of the sheet of paper 16 to be bonded. The lower inner surface 17 of the tank 14 is downwardly and inwardly tapered where the same is provided with a longitudinal groove, as indicated at 18. Fittings 19 having axial openings 20 are threadedly secured in the bottom of the tank 14 and communicate wit-h the groove 18, as shown in detail in Figure 2. The depending tips 15 are threadedly engaged on the downwardly 2,806,443 Patented Sept. 17, 1957 projecting ends of the fittings 19, and which tips are downwardly and inwardly tapered at their lower ends. A ball 21 is received within each tapered lower end of each tip 15, and a compression spring 22 is positioned between the lower surface of fitting 19 and against its associated ball 21.
The tank 14 is provided with projections 23 on each end thereof for securing the tank on the upper ends of spaced parallel vertical supporting rods 24. The rods 24 extend through the table top 11 and are slidably positioned through guides 25 secured to one of the table sides 12. Guide bushings 26 may be provided in the table top 11 for reducing friction and aligning the rods 24.
A double acting air cylinder 27 is vertically mounted on the referred to table side 12 between the guides 25 and extends downwardly beneath the table top 11. A cross member is secured to the extending end of the cylinders piston rod 29. The outer ends of the cross member are provided with integral vertical sleeves 30 for slidably receiving the supporting rods 24. Coiled compression springs 31 are mounted around the ends of the rods 24 beneath the cross member 28, and the lower ends of the rods are provided with collars 32 for holding the springs in place. Other collars 33 are mounted on the rods 24 above the cross member 28 and serve as stops for raising the tank when the piston rod is moved upwardly. The
collars 32 and 33 are held in place by means of cotter keys 34 which fit through vertically spaced transverse openings, not numbered, in the lower ends of the rods 24 for providing vertical adjustment of the tank 14 relative to table top 11. The tank 14 is provided with an air tight removable cover 35.
The upper and lower ends of the vertically arranged double acting cylinder 27 are connected with a double acting foot operated pneumatic valve 36 by means of hose lines 37 and 38. A source of air pressure is provided through an additional hose line 39. Since the foot operated valve 36 is conventional, the same is not herein described in detail.
Figure 1 is a rear view of the tipping machine relative to the position of the operator, and the foot operated valve 36 shown is arranged for such position. The back upper surface of the table top 11, which is the near side shown in Figure 1, is provided with angularly formed straps which serve as stops for the stacks of sheet material 16. A similarly formed adjustable stop 41 is provided on the table top 11 near one end thereof and includes a slot 42 in its horizontal portion for receiving a wing nut and screw combination 43 vertically mounted in the table top.
In operation, the sheets of material 16 are stacked by hand against the stops 40 and 41. After the placing of each sheet 16 on the stack, the foot operated valve is actuated causing the cross member 28 to move downwardly and to bring the tips 15 on the tank 14 against the upper edge surface of the sheet so placed. As the balls 21 contact the upper surface of the sheet 16 on the top of the stack, bonding fluid is released providing spots of adhesive which will stick the stacked sheets. By reason of the arrangement of sleeves 30 on the ends of the cross member 28, the compression springs 31 around the lower ends of the supporting rods 24, and the spring limiting collars 32, the downward movement of the piston rod 29 may continue or override for a short distance after downward movement of the tips 15 has been stopped by reason of contact of the latter with the sheet material 16. As the size of the stack increases, the last referred to overriding spring action provides substantially uniform pressure throughout the stacking and bonding operations.
The invention is not limited to the construction herein shown and described, but may be made in many ways within the scope of the appended claims.
What is claimed is:
1. A tipping machine comprising a horizontal surface for supporting sheet material to be bonded, a horizontal elongated bonding fluid receiving trough above said horizontal surface, fluid dispensing tips projecting from the bottom of saidtrough and arranged in a line along the lengthtthereof, vertical rods connected with the-ends of said tank and slidably supported by said horizontal surface, the lower ends of said rods extending downwardly beneath said surface, a cross bar connecting the lower ends of said rods and slidably engaged thereon, a double acting air cylinder connected with and actuating said cross member on said rods, spaced collars on each said vertical rod above and below said cross bar, and compression springs on each said rod between said cross bar and the lower collar.
2. A tipping machine as defined in claim 1 and wherein said fluid dispensing tips include spring loaded closures 4 in the dispensing ends thereof, and whereby tips outwardly of the ends of the sheetmaterial to betbonded remain closed during the tipping operation.
3. In an elongated trough for a tipping machine as defined in claim 1, the construction wherein the inside bottom surface of said elongated tank is downwardly and inwardly tapered so as to provide a longitudinal groove connecting the inner ends of said fluid dispensing tips.
Refcrcnces Cited in the file of this patent UNITED STATES PATENTS 748,428 Simonson .Dec' 29, 1903 2,081,758 Molmoe May 25, 1937 2,156,804 Dorsch May 2, 1939 2,208,636 Johnson July 23, 1940 2,533,704 Zanetti Dec. 12, 1950
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|U.S. Classification||118/711, 412/37, 270/58.8, 118/241, 118/236|
|International Classification||B05C5/00, B42C9/00, B05C5/02, B05C1/02|
|Cooperative Classification||B05C1/027, B05C5/0275, B42C9/0081, B05C5/004, B05C5/0237|
|European Classification||B05C5/02J1, B05C1/02F, B42C9/00D, B05C5/00B2|