Improvements in Sand-papering Devices.
Year: 1889

page_text: COMPLETE SPECIFICATION.
Improvements in Sand-papering Devices.
a
I, SIMON Ross Junior, a Citizen of the United States of America and resident of
Cincinnati, in the County of Hamilton and State of Ohio, 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 :--
The object of my invention is to provide a revolving pulley or drum for holding
sand paper band or belt sufficiently taut to revolve it, at the same time presenting
an elastic, yielding support for the band, and between it and the periphery of the
pulley. This support must sufficiently open to allow a current of air to pass through
so as to keep the sand paper cool, and thereby prevent the burning of the shoe which
is to be sand papered, by the heat of the band. Sand paper bands have been secured
to leather or other fibrous material so as to make a soft yielding support, but this
causes the sand- paper to heat and so are not sufficiently elastic to cause the paper
strongly depressed to quickly resume it natural position. Attempts have been inade
to make this support of wire but this is not adapted to sand paper belts as it
wears out, cuts or tears the paper rapidly. My device is especially adapted to
sand papering boots and shoe soles, but it may be employed to sand paper other
material.
The various features of my invention will be fully set forth in the description of the
accompanying drawings making a part of this specification, in which―
Fig. 1 is an elevation of my improvement partly in section. Fig. 2 is an end
elovation of the same. Fig. 3 a modification. Fig. 4 is a modified form of the elastic
band support.
In the accompanying drawings I have shown a sand papering roll of
one form illustrating convenience of construction.
1 represents a collar made of metal and secured to the drum of cylinder 2 by
screws 3. 4 represents a rubber band carrying a continuous series of elastic rubber
7 repre-
projections 5. This is shown connected to the drum or roller by screws 6.
sents an abrasive band or belt which is forced upon the roll, in the manner shown in
Figs. 2 and 3, the elastic projections 5 yielding enough to allow it to be slipped on
and by their recoil press the surface of the abrasive band 7 outwardly and hold the
sand band from turning on the surface, at the same time when pressure is applied to
the band 7 these elastic projections 5 will yield to the pressure of the shoe or other
material being sand papered, and prevent the sand from being detached, and allow a
circulation of air between the sand paper and roll surface. As soon as the
is
removed, the elastic projections will recoil cleaning the sand paper by knocking out
the dust, and holding the sand paper in place, thus furnishing a soft back or support
for the sand paper preventing it from being doubled, and preventing the friction
applied to its surface from unduly wearing or knocking off the abrasive material. In
Fig. 1 have shown in plan another form of projection, which consists of a continuous
series of ribs made of rubber, the depth of these being sufficient to allow them to yield
to the pressure so as to place a band upon it and to furnish a sufficiently soft backing
support and also to allow current of air to circulate between the band and pulley. When
the abrasive band used in the form shown in Fig. 1, has been worn out it may be
pressure

page_text: readily detached and another band slipped on in its place. Owing to the elastic
character of the projections 5 the pulley or drum carrying the same may be revolved
at great rapidity without unduly wearing away the abrasive material, and without
heating or burning the article to be smoothed.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1. As an improved article of manufacture the herein described sand papering
device, consisting of a drum provided with a tubular covering band fixed thereto and
formed integral with a series of inherently elastic soft rubber projections extending
radially from the surface of the band, separated to provide intervening air circulating
spaces and yieldingly holding and moving a sand paper band by frictional contact
therewith to permit the free circulation of air between the adjacent surfaces of the
soft rubber projections and the sand paper band, substantially as described.
2. As an improved article of manufacture the herein described sand papering device,
consisting of a drum provided with a tubular covering band fixed thereto and formed
integral with a series of inherently elastic soft rubber projections extending radially
from the surface of the band, separated to provide intervening air circulating spaces
and forming a yielding support for the sand paper hand in frictional contact there-
with to permit the free circulation of air between the adjacent surfaces of the soft
rubber projections and the sand paper band, substantially as described.
Dated this 17th day of May 1889.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.