Improvements in Sand-papering Machines.
Year: 1897

page_text: Date of Application, 4th May, 1897-Accepted, 3rd July, 1897
COMPLETE SPECIFICATION.
Improvements in Sand-papering Machines.
I, GUSTAVE STICKLEY, of 1001 Walnut Avenue, in the City of Syracuse, County of
Onondaga and State of New York, United States of America, Manufacturer, do hereby
declare the nature of this invention, and in what manner the same is to be performed,
to be particularly described and ascertained, in and by the following statement:-
My invention relates to sand-papering belts, and the object is to provide a belt that
will be simple in construction and at the same time be capable of adapting itself to
very many, if not every shape or form. That is, the belt or band is flexible-and so
constructed, that the irregular edges of the pieces for furniture may be sand-papered
or smoothed easily and quickly thereon without changing belts..
To this end my invention consists in the combination with a grooved wheel or
wheels, of a solid elastic belt having normally a flat even periphery, a tongue to fit in.
the grooves, and the side edges sharp substantially as shown, and a band of sand-paper
on the periphery of the elastic belt having its edges turned over the edges of the
belt.
In the drawings hereto annexed and forming a part of this specification, Figure 1
is a top plan view of the upper wheel in contact with the irregular edge of a board,
Figure 2 is an edge view of the lower wheel with the elastic band and sand-paper
band thereon shown in cross-section, Figure 3 shows the inner side view of a portion
of the sand-paper band before the edges are bent inward, Figure 3 shows the band.
after the edges are bent over, Figures 4 and 5 illustrate, together with Figure 1, the
adaptability of the belt to fit and smooth various forms of stock, and Figure 6 shows
the belt passing around the wheels.
Referring specifically to the Drawings, A indicates a wheel, pulley or support for the
elastic belt, B is the elastic belt, and C is the sand-paper band mounted on the said
belt.
The wheel, A, has a groove, a, in its periphery midway between its sides and may
be made in one piece or in two or more parts as desired. A¹ is the shaft of the
wheel.
The elastic belt, B, is made of rubber and is provided with a rib or tongue, b, on
its inner side to lie and fit in the grooves, a, in the wheels. The outer surface of the
belt is normally smooth and even. The side edges of the belt extend equal distances
in opposite directions from and beyond the sides of the wheels. The inner sides of
the belt between the tongue and the edges are beveled or converge toward said
edges which are sharp, as clearly shown in Figure 2 of the Drawings.
The band of sand-paper, C, is cut somewhat wider than the elastic belt so that its
edges may be turned inward toward the rib thereon. The band of sand-paper is
creased on the dotted lines, c, c, before it is applied to the belt.
In order that the band will be reinforced or remain with its side edges bent in
after it is applied to the rubber belt, I coat the sand-paper on its back a distance from
each edge with glue, c', c¹. If desired the glue may cover the entire back of the
paper. Although the thin coating of glue is dry before it is applied to the belt and
does not cement the parts together, the sand-paper band will remain folded or bent
on the dotted lines and cannot work off the wheel.

page_text: It will be apparent, that with this construction, it will be possible to sand-paper or
smooth almost any irregular shaped edge on a board. The belt being of elastic
material and of the shape shown, will accommodate itself to the different shapes
without trouble, as shown in Figures 1, 4 and 5. D in said figures indicates the
work or boards operated upon. The sand-paper band being loose, it may be easily
replaced by another when worn out.
It will be obvious that with two wheels, A, the elastic belt, B, would pass around
both wheels.
Having now particularly described and ascertained the nature of my said invention,
and in what manner the same is to be performed, I declare that what I claim is :-
1. The combination with a grooved wheel, of a solid elastic belt having normally a
smooth even periphery, a tongue to fit in the groove, and the side edges sharp,
substantially as shown, and a band of sand-paper on the periphery of the elastic belt
having its edges turned over the edge of the belt, substantially as set forth.
2. The combination with the grooved wheels, of a solid elastic belt having normally
a smooth even periphery, a tongue to fit in the groove, and the side edges sharp,
substantially as shown, and a band of sand-paper mounted loosely on the periphery
of the elastic belt having its edges turned over the edge of the belt and forming acute
angles, and glue on the back side of the sand-paper band but not adhering to the
belt, as and for the purpose described.
3. As an article of manufacture, a belt formed of sand-paper and provided with a
coating of glue or similar stiffening material on its back, and having its edges bent
over upon itself and forming acute angles at the bends, as set forth.
Dated this 6th day of April 1897.
GUSTAVE STICKLEY,
Haseltine, Lake & Co.,
45 Southampton Buildings, W.C., Agents for the Applicant.