Improvements in or connected with the Construction of Rotary Polishing Brushes.
Year: 1897

page_text: Date of Application, 19th Jan., 1897
Complete Specification Left, 1st Sept., 1897-Accepted, 2nd Oct., 1897
PROVISIONAL SPECIFICATION.
Improvements in or connected with the Construction of Rotary
Polishing Brushes.
I, WILLIAM KIDDIER of 3, Victoria. Avenue, Sneinton, Nottingham, Brush
Manufacturer do hereby declare the nature of this invention to be as follows:-
Rotary Polishing Brushes (that is brushes usually fixed upon the shaft of a
machine for the purpose of being rapidly rotated, while under the pressure of heavy
metal articles which have to be polished or to which a smooth surface is to be
given) have hitherto been made upon a circular wooden stock turned from one
piece of wood. In order to wire the bristles to the stock the latter has to be
hollowed on each of its sides so as to leave in the centre only a narrow substance
of wood to connect the hub of the stock with its outer rim. Through the centre
of the hub a hole is bored to correspond with the diameter of the shaft upon which
it is to be fixed and by means of which it is to be rotated. Owing to the narrow
substance of wood above referred to the stock frequently splits and the brush is
thereby rendered useless. Not only is the brush spoilt, but when split it frequently
flies off the shaft to the considerable danger of injury to persons and things in
the factory where it is being used.
My invention consists in dispensing with the above mentioned wooden hub and
its narrow wooden connection with the outer rim of the stock as a means of fasten-
ing the brush upon the shaft and in its place fastening the brush to the shaft by
means of two iron templates specially shaped to receive and hold in position the
stock (also specially shaped) of the brush. One of the templates is fitted with an
ordinary bolting device to attach it to the rotating shaft and also with a tapped
bolt. When the two templates are joined so as to enclose the stock the tapped pin
through the first template passes through the hole through the second and the
whole is secured tightened and regulated in position by an ordinary nut.
.
I claim as my invention the new shape of stock, the new method of fastening
it to the shaft, viz., by templates instead of a hub, and the shape of the templates
used in carrying the method into effect.
Dated this 18th day of January 1897
Improvements in or connected with the Construction of Rotary
Polishing Brushes.
I, WILLIAM KIDDIER of 3, Victoria Avenue, Sneinton, Nottingham, Brush
Manufacturer, do hereby declare the nature of this invention and in what manner
[Price 8d.]

page_text: the same is to be performed, to be particularly described and ascertained in and by
the following statement:-
This invention relates to improvements in, or connected with the construction
of Rotary Polishing Brushes used for polishing, cleaning, and performing similar
operations upon heavy metal articles. The invention also relates to Rotary Polish-
ing Brushes used for light articles, and other purposes.
Previous to this invention rotary polishing brushes have been made upon a
wooden stock, which has been turned from a single piece of wood, and in order to
wire the bristles, or fibre into the stock, the latter has been turned with a cavity
on each side, leaving an outer rim, and a central boss, or hub, which is bored to
fit the driving shaft. These brushes, however, frequently split, and fly from the
driving shaft, or spindle, thereby rendering the brush useless, and the operator
liable to serious accident.
The object of the present invention is the construction of a rotary polishing
brush free from the objections in brushes of the existing make.
According to this invention the bristles, or fibre, are wired into a thin circular
ring of wood, or other suitable material, which is clipped, or held between two
metal plates, or templates, one of which is formed to receive leather, wood, or
other suitable material, which is bored and may be screw threaded so that the
brush may be held fast upon the end of a driving shaft, or spindle..
In the accompanying drawings:-
Fig. 1 is a sectional elevation of a brush constructed according to this
invention, and
Fig. 2 is a plan, half in section, of the brush shewn in Fig. 1.
Referring to the drawings, the bristles or fibre are indicated by the dotted lines a,
and are secured into the stock b by wire. The stock is a circular ring, and is
bevelled at the edges c, partly to ensure the fitting of the metal side plates, or
templates d, and e, and partly to give the side plates a hold on the stock, and thus
strengthen it. In the arrangement shewn, the plate d is sunk to fit inside the stock
and form a cup, which is filled with leather washers f, by which the brush may
be quickly fastened to the driving shaft or spindle. The leather washers are bored,
or screw threaded to correspond with the end of the shaft or spindle, and are held
in position by a metal plate 4, and bolts and nuts h. Below the cup, which con-
tains the washers f, is a hollow metal shank k, the end off which is screw threaded
to receive a nut 7, the plate e being recessed, as shown, to allow of the nut being
sunk to the outer face of the plate e. The plate is made with a projection or
key g (Fig. 2), which fits a recess or keyway in the plate d, and is thus prevented
from turning. The plate e may also be provided with a keyway to receive a key
on the shank k, or other device to prevent the plate turning.
In modifications of the arrangement shown, the leather washers f may be re-
placed by wood, or other suitable material; the recessed portion of the plate d
may have a number of holes to lighten it; and the plate e may be tapped to fit
a screw thread on the shank k, or other known means may be used for connecting
the two plates together.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what
claim is:-
1. A rotary polishing brush, with the bristles or fibre secured into a stock, which
is in the form of a ring, and is held between two shaped side plates or templates
fastened together so as to clip the stock, one of the said side plates being recessed
or cup shaped to receive leather, or some other suitable substance which is bored
and may be screw threaded, so that the brush may be easily and quickly secured
to the driving shaft or spindle, constructed substantially as herein described, with
reference to the accompanying drawings.

page_text: 2. A rotary polishing brush constructed as herein described with reference to
the accompanying drawings.
Dated this 21st day of Anos 1907
PARKER WOODWARD,
Agent for Applicant