Патент USA US2117995код для вставки
May 17, 1938. c. A. ROSS 2,1 17,995 SANDPAPER ROLL AND PROTECTOR THEREFOR Filed May 26, 1936 /6 17/- - Fig? 2 195 guwc/wtow C'UL //v A Fuss Q9}“f 2,117,995 Patented May 11, 1938 UNITED STATES PATENT ‘OFFICE 2,117,995 SANDPAPER ROLL AND PROTECTOR THEREFOR Colin A. Doss, Troy‘, N. Y., assignor to Behr Mannlng Corporation, Troy, N. Y., a corpora tlon of Massachusetts Ei '1‘ ii F a Application May 26, 1986, Serial No. 81,880 w M JUL i340 1 Claim (01. 206-59) I provide a large sheet of corrugated paper The invention relates to protectors and with regard 'to its more specific features to protectors board. Preferably I coat one edge of the board parallel‘ to the corrugations with adhesive, for for rolls of sandpaper. One object of the invention is to provide a example sodium silicate or glue. I now, and 5 protector that shall prevent the damaging of. a before the adhesive has completely set, place this edge of the corrugated paper board upon a man roll of sandpaper. Another object of the inven tion is to provide a protector that can readily be When a. cylinder of spirally wound corrugated of the invention is to facilitate packing of rolls board has thus been produced, I secure the free end with gummed paper. I remove the mandrel 10 and I may now out disks from the cylinder with 10 of sandpaper. Another object of the invention is to provide a roll of . sandpaper and protectors therefor which can be stood on end without damage. Another object of the invention is positively to protect the edge of a sandpaper roll. 15 Another object ‘of the invention is to provide a construction for protectors according to which' protectors of different diameters can quickly be made up. Other objects will be in part obvious or in part pointed out hereinafter. The invention accordingly consists in the fea tures of construction, combinations of elements and arrangements of parts, as will be exempli?ed in the structure to be hereinafter described and the scope of the application of which will be in dicated in the following claim. - In the accompanying drawing, in which is shown one of various possible embodiments of the mechanical features of. this invention, Figure l is a plan view of the protector, Figure 2 is an axial sectional view of a roll of 30 sandpaper with a protector at each end, and Figure 3 is a perspective view of a package con structed according to the invention and ready for shipping. 35 drel and then wind the board. manufactured at small'expense. Another object 1 a rotary saw or by means of gang saws. Referring now to the drawing, the numeral Ill designates a protector disk of spirally coiled cor rugated paper board, for example of the order of l to 2" in thickness. I may make a disk of any diameter less than the diameter of the wound cylinder from which the disks were cut, merely by breaking the paper seal and unwinding convolu tions of the corrugated‘ paper board, cutting, and 20 resealing with a gummed strip of paper. I There is provided a coiled spirally wound roll of sandpaper II which is to be shipped. Re ferring now to Figure 2, in order not to crush the ?rst convolution of the sandpaper an axial hole i2 exists in the inside of the sandpaper roll. I now place a protector disk ill at either end of the roll II and wrap the entire assembly in wrapping paper it, for example kraft paper, seal ing the wrapping along an element of the cylin drical roll H with gummed paper tape I5 and folding the paper over each disk l0, sealing with gummed circular paper heads It. If desired, I may include a long wooden rod I‘! Edge damage to a roll of sandpaper is the most in the construction, placing it in the hole I! with serious problem of the manufacture of sandpaper _ its opposite ends-"in corresponding central holes so far as shipping the same is concerned. If. a I! of. the disk Ill. However, in many cases the roll of sandpaper is placed with its axis parallel rod I1 may be omitted or I may substitute‘ short to the floor of the vehicle, for example a railway wooden plugs projecting only a short distance car or a motor truck, the danger of damage is into the hole I! and, if desired, secured in the very slight, as has been found in actual practice. holes ll with adhesive, for example glue. In handling the completed package of the However, when the freight car or truck is crowd ed, the railway or truck employees will usually _ present invention, when it is carelessly thrown stand the sandpaper rolls on end. In doing so into position in the freight car or other vehicle, 45 they are apt to drop the ‘rolls and as they usually being allowed to drop with its axis at an acute do not take care to set them. down perfectly ., angle to the vertical, the corrugated board pro straight, the blow received at the edge of the roll ’ tectors III’ are or may be slightly crushed but at causes deformation of a few of. the outsidelayers .all events receive the shock and because they are of‘,v the abrasive material, producing a crescent non-rigid and also deformable, do not transmit l0 shaped cracking. This cracked edge weakens an. the shock to the sandpaper roll I l to such‘an abrasive drum, cover or belt which is made from extent ‘as to result in causing the damage here1 the affected portion of the sandpaper. For these t'ofore explained: Therefore, the entire package and 'other ‘reasons, edge damage due to shipping ‘arrives at its ultimate destination without edge is a serious matter to the manufacturer of sand paper and also abrasive cloth. damage and in good condition. ' ' The purpose of applying adhesive to the ?rst 2 2,117,905 1 convolution at the hole It is to permit the form changes might \be made in the‘ embodiment above ing of a convolution to be received by the mandrel and otherwise to assist in the manufacture of. the article. This step and feature may be omitted, if desired. The protector disk of the invention is easy to panying drawing is to be interpreted as illus manufacture and its size can be readily changed as explained. Furthermore, the material from which it is constructed is cheap. The entire package can be assembled by packers very quickly and the package is a neat package which is easy to handle and presents an excellent appearance. It will thus be seen that there has been provided by this invention an article in which the various objects hereinabove set forth together with many a thoroughly practical advantages are successfully achieved. As‘ many possible embodiments may be made of the above invention and as many set forth, it is to be understood that all matter hereinbefore set forth or shown in the accom trative and not in a limiting sense. ' I claim:-- . A package comprising a cylindrical roll of. coated abrasive sheet material, a protective de- , vice at an end of the said roll and in juxta position thereto, said protective ‘device compris ing corrugated board spirally wound and in disk shape, the axis of the spiral being the same as the axis of the roll, and wrapping paper wrapped around the roll and over the protective device thus securing the protective device to the end of the roll. _ i COLIN A. R088.