IMPROVEMENTS IN BRUSHES FOR CLEANING AND POLISHING THE SURFACES OF METALS OR OTHER HARD MATERIALS
Year: 1880

page_text: LETTERS PATENT to Godfrey Jobson, of Derby, in the County of Derby,
Stove Manufacturer, for an Invention of "IMPROVEMENTS IN BRUSHES FOR
CLEANING AND POLISHING THE SURFACES OF METALS OR OTHER HARD
MATERIALS."
PROVISIONAL SPECIFICATION left by the said Godfrey Jobson at the Office
of the Commissioners of Patents on the 19th October 1880.
GODFREY JOBSON, of Derby, in the County of Derby, Stove Manufacturer.
"IMPROVEMENTS IN BRUSHES FOR CLEANING AND POLISHING THE SURFACES OF
METALS OR OTHER HARD MATERIALS."
According to my improvements the bristles or cleaning and polishing surfaces are
formed from a series of twisted steel or other metallic wire strands or wire rope cut
into suitable lengths and folded or looped, leaving tufted ends.
A cylinder or annular ring is perforated with numerous holes arranged in a
diagonal direction across the surface of the cylinder or annular ring, the holes being
formed by drilling or otherwise.
From the inside of the annular ring I pass both ends of the folded or looped
lengths of wire or wire rope through two contiguous holes, forming a loop of each
length or series of lengths, thus connecting the same with the annular ring, the
tufted ends being outwards.
This operation is repeated until each pair of holes in the annular ring is
filled up.
Within this perforated cylinder or annular ring is applied another but
unperforated cylinder or annular ring to form a backing or support to the looped
ends of the tufts.
The inner cylinder is retained in its place by discs or plates, one at each open end
of the outer cylinder, and cach of these discs or plates is formed at its centre with
an enlargement or boss, and these enlargements or bosses are bored to receive an
axis, which becomes the axis of the cylinder when that is mounted for use.
The periphery or outer edge of each of these discs or plates is screw threaded, one
right and the other left handed, to screw into corresponding threads formed in the
interior of the outer cylinder.
By these means brushes may be readily formed for rotation at the desired
velocities and for the purpose of cleaning and polishing the surfaces of metals or
other hard materials.

page_text: This cylinder or ring c is retained in its place by discs or platos b, b', one plate b
closing one open ond and the other plate b closing the other open end of the
cylinder a. Each of these discs or plates b, b', is formed at its centre with an
enlargement or boss b', 62, and these enlargements or bosses are bored at b³, 6³, to
receive an axis, which becomes the axis of the brush when mounted for use.
The periphery or outer edge of each disc or plate b, bl, is scrow threaded, the one
with a right band thread and the other with a left hand thread, to screw into
correspondingly formed threads a², a², in the interior edges of the outer cylinder a,
as more clearly indicated by Figure 3.
Figures 4, 5, and 6 shew by external side view transverso section and horizontal
section respectively an arrangement of similar parts for holding the lengths of wire or
wire rope d, in which however the discs or plates b, b', are held together in position
by screws 6, 6, 6, and are keyed at b* to the outer cylinder or ring a.
Figure 7 shows by external edge view the outer cylinder a with its perforations a¹
separately.
By these means brushes may be readily formed for rotation at the desired
velocities and for the purpose of cleaning and polishing the surfaces of metals or
other hard materials.
Having thus described the nature of my Invention, and means I adopt in
carrying the same into effect, I would have it understood that what I claim is
the arranging or combining parts forming brushes for cleaning and polishing the
surfaces of metals or other hard materials, substantially as described.
In witness whereof, I, the said Godfrey Jobson, have hereunto set my hand
and seal, this Twelfth day of April, One thousand eight hundred and eighty