IMPROV BRUSH BA
Year: 1880

page_text: LETTERS PATENT to Alexander Melville Clark, of 53, Chancery Lane, in the
County of Middlesex, Patent Agent, for an Invention of "IMPROVEMENTS
A communication from abroad by Anson Leviticus Sonn,
IN BRUSH BACKS."
PROVISIONAL SPECIFICATION left by the said Alexander Melville Clark
at the Office of the Commissioners of Patents on the 5th May 1880.
ALEXANDER MELVILLE CLARK, of 53, Chancery Lane, in the County of Middlesex,
Patent Agent.
"IMPROVEMENTS IN BRUSH BACKS." [A communication from
abroad by Anson Leviticus Sonn, of Toledo, in the County of Lucas, State of
Ohio, United States of America.]
This Invention is an improvement in the class of hair and other bristle brushes
having the block in which the bristles are set enclosed in a sheet metal casing,
and it consists in constructing the casing of two metal parts which are applied and
connected as herein-after described.
According to this Invention the lower or under plate is first applied to the
wooden block, and its edges turned up over the edge of the latter. The holes for
receiving the tufts of bristles are then bored through both the plate and wood
block, and the bristles are next inserted and secured by means of wires in a firm
and durable manner. Glue or cement may then be applied to smoothly cover the
wires. This prepares the brush for the application of the back plate, which is
secured by turning or bending its edge upon the previously turned edge of the
under plate, and completing the operation by burnishing or milling the edge of
the back plate to form a close or water-tight joint.
The construction of the brush may be modified by reversing the arrangement or
position of the plates with reference to the block. In such case the lower plate is
turned up over the block, and burnished down on the edge of the back plate. In
the construction of tooth brushes substantially the same mode of construction is
adopted. The wooden block is however dispensed with, and the lower part made
of sufficient thickness to serve as a block, which may be bored in the usual way.
The back may be let into a recess in the lower part, and secured by a flange or
lip of the latter, which is burnished or milled to form a close joint.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Alexander Melville Clark in the Great Seal Patent Office on the 3rd
November 1880.
ALEXANDER MELVILLE CLARK, of 53, Chancery Lane, in the County of Middlesex,
Patent Agent. " IMPROVEMENTS IN BRUSH BACKS." A communication from
abroad by Anson Leviticus Sonn, of Toledo, in the County of Lucas, State of
Ohio, United States of America.
This Invention is an improvement in that class of hair and other brushes
having the block in which the bristles are set enclosed in a sheet metal casing, and
it consists in constructing the casing of two metal parts which are applied and
connected as hereinafter described.
In the accompanying Drawings, Figure 1 is mainly a side view and partly a
sectional view of a hair brush constructed or incased according to this Invention ;.
Figures 2 and 3 are different vertical cross sections of the brush on lines x-x
and y-y of Figure 1; Figure 4 is a plan view of a fragment of a hair brush,
having a metal casing of slightly modified construction; Figure 5 is a cross section
of the same on line z-z; Figure 6 is a partly sectional side view of a tooth brush
constructed according to this Invention, and Figure 7 is a plan of a part of the
same. A and B indicate the two parts which together .constitute the metal case
or frame of the improved brush. In Figures 1, 2, 3, A indicates the sheet metal
back of a hair brush, and B the lower or under plate thereof. The plate B is first
applied to the wooden block C, and its edges turned up over the edge of the latter,
as shown.
The holes for receiving the tufts of bristles D are then bored through
both the metal B and wood C, and the bristles are next inserted and secured by
means of wires in a firm and durable manner. Glue or cement may then be
applied to smoothly cover the wires. This prepares the brush for the application
of the back plate A, which is secured by turning or bending its edge a upon the
previously turned edge of the plate B, and completing the operation by burnishing
or milling the edge of part A to form a close or water-tight joint.
In Figures 4 and 5 is shown a slightly modified construction of the brush, which
consists mainly in reversing the arrangement or position of the parts A, B, with
reference to the block C. In such case the lower plate B is turned up over the
block C and burnished down on the edge of back plate A.
In the construction of tooth brushes, as illustrated in Figures 6 and 7, sub-
stantially the same mode of construction is adopted as shown in Figures 4 and 5.
The wooden block C is however dispensed with, and the part B made of sufficient
thickness to serve as a block, which may be bored in the usual way; Figure 7
represents the same bored and ready for the insertion of the bristles. In Figure û
the back A is shown let into the. recess in part B, and secured by a flange or lip b
of the latter, which is burnished or milled to form a close joint.
By the above described construction a brush is produced, which, having an
integral metal frame or casing, is superior in capacity to avoid aad resist injury by
abrasion, warping, or splitting, and the effects of heat and moisture.
Having described the nature of the said Invention, and the manner of performing
the same, I declare that what I claim as the Invention to be protected by the
hereinbefore in part recited Letters Patent is,-
1st. A brush having a metal case or frame composed of the parts A, B, one being
let into or enclosed by the overlapping edges of the other and united to form a
water tight joint, substantially as shown and described.

page_text: 2nd. The combination with the perforated metal case or frame B, having the
bristles attached and provided with a recess in its back, of the plate A laid into
the recess and secured by the upset lip or flange of the other part, as specified.
In witness whereof, I, the said Alexander Melville Clark, have hereunto set
my hand and seal, this Third day of November, in the year of our Lord
One thousand eight hundred and eighty.
A. M. CLARK. (L.S.)