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Патент USA US2117995

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May 17, 1938.
c. A. ROSS
2,1 17,995
Filed May 26, 1936
Fig? 2
C'UL //v A Fuss
Patented May 11, 1938
Colin A. Doss, Troy‘, N. Y., assignor to Behr
Mannlng Corporation, Troy, N. Y., a corpora
tlon of Massachusetts
'1‘ ii F a
Application May 26,
1986, Serial No. 81,880
w M
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
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.
drel and then wind the board.
manufactured at small'expense. Another object
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.
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
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.
COLIN A. R088.
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