Improvements in and relating to the Wheels used for Polishing and Glazing Cutlery, and for Fixing the Polishing or Glazing Material thereto.
Year: 1897

page_text: Date of Application, 17th Aug., 1897
Complete Specification Left, 12th May, 1898-Accepted, 18th June, 1898
[Communicated from abroad by ALLEN JOHNSTON, of Ottumwa, Iowa, United States
of America, Engineer.]
Improvements in and relating to the Wheels used for Polishing and
Glazing Cutlery, and for Fixing the Polishing or Glazing
Material thereto.
I, CHARLES PEACH, of 86, Melbourne Street, Derby, in the County of Derby,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to the making of glazing and polishing wheels and to
fastening or fixing the glazing and polishing material thereto, and particularly to
such wheels as may be employed to operate upon knife blades.
In the glazing or polishing of knife blades one of the most important items is the
covering of the surfaces of the glazing wheels with suitable material so that they
will have perfectly true and even surfaces. This is now generally done by hand, the
glazing wheel being usually made of small diameter and of wood with the end grain
on the outer circumference, it is hacked or otherwise roughened with a knife or other
instrument and into the nicks or apertures thus made the glazing material is rubbed
or placed; when a sufficient quantity has been rubbed in the wheel is set in motion
and the uneven parts of the surface are worn down by means of a stone or its equiva-
lent until it is smooth enough for the knife blade. Another method is to glue or
otherwise secure a piece of leather on the outer circumference of the wooden wheel,
glue fine emery on the leather and then true it up as above; these methods not only
require great care and skill but take up a great deal of time.
This present invention relates to the covering of large iron wheels which are
preferably made with a roughened surface sufficient to hold a polishing material such
as bees wax, emery and tallow; they are first covered with a thin coating of the bees
wax in a liquid state, the polishing material such as the above is then applied, this
being cold is in a hard cake state but to make it adhere to the large wheel a heated
substance is brought in contact with the surface of the said wheel, for this is
preferably employed an iron or other roller of the width and opposite cross section to
the required face of the large wheel the said large wheel is then set in motion and
the iron roller is brought in contact with the bees wax on it, the heat from the roller
gradually warms the waxed surface and causes it to adhere to the wheel, the said
polishing or glazing substance being as already stated in the form of a cake is held
tightly on to the face of the wheel as it revolves and the surface of the roller being
pressed to the surface of the wheel it evenly covers or spreads the polishing material
over the whole surface of the wheel.

page_text: Any suitable means may be employed for heating the roller such as admitting
steam to the inside thereof or a gas jet or other equivalent may be substituted, the
said roller passing along a suitable bed, guides or ways in front of the large wheels,
may be moved up to or away from the said polishing wheels by means of a worm and
wheel or other equivalent.
Improvements in and relating to the Wheels used for Polishing and
Glazing Cutlery, and for Fixing the Polishing or Glazing
Material thereto.
I, CHARLES PEACH, of 86, Melbourne Street, Derby, in the County of Derby,
Engineer, 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 :-
This invention relates to the making of glazing and polishing wheels and to
fastening or fixing the glazing and polishing material thereto, and particularly to
such wheels as may be employed to operate upon knife blades.
In the glazing or polishing of knife blades, one of the most important items is the
covering of the surfaces of the glazing wheels with suitable material so that they will
have perfectly true and even surfaces. This is now generally done by hand, the
glazing wheel being usually made of small diameter and of wood with the end of the
grain on the outer circumference, it is hacked or otherwise roughened with a knife or
other instrument and into the nicks or apertures thus made the glazing material is
rubbed or placed; when a sufficient quantity has been rubbed in, the wheel is set in
motion and the uneven parts of the surface are worn down by means of a stone or its
equivalent until it is smooth enough for the knife blade. Another method is to glue
or otherwise secure a piece of leather on the outer circumference of the wooden wheel,
glue fine emery on the leather and then true it up as above; these methods not only
require great care and skill but take up a great deal of time.
În describing my invention reference will be had to the accompanying sheet of
drawings upon which
Figure 1 is a vertical sectional view, certain parts being in elevation, and
Figure 2 is a sectional view, at right angles to Figure 1 taken through the pressure
roller.
This present invention relates to the covering of iron or other wheels which are
preferably made with a roughened surface sufficient to hold a polishing material such
as bees wax, emery and tallow or paraffin; they are first covered with a thin coating
of bees wax in a liquid state, the polishing material of a character to be softened by
heat such as the above, is then applied, this when cold is in the form of a hard cake
but to make it adhere to the large wheel a heated substance is brought in contact
with the surface of the said wheel, for this is preferably employed an iron or other
roller; the said large wheel is then set in motion and the iron roller is brought in
contact with the bees wax on it, the heat from the roller gradually warms the waxed
surface and causes it to adhere to the wheel, the said polishing or glazing substance
being as already stated in the form of a cake is held tightly on to the face of the
wheel as it revolves and the surface of the roller being pressed to the surface of
wheel it evenly covers or spreads the polishing material over the whole surface of the
said wheel and whether the material be softened or not by the heated roller, the heat

page_text: of the latter prevents the polishing mixture from adhering thereto when pressed
between its surface and the cold surface of the wheel to which it adheres in a
compact and uniform layer. A few rotations are sufficient to complete the polishing
wheel.
Any suitable means may be employed for heating the roller other than steam such
as applying a gas jet or other equivalent to the inside thereof; the said roller passing
along a suitable bed, guides or ways in front of the large wheels, may be moved up
to or away from the said polishing wheels by means of a worm and wheel or other
equivalent.
Referring to the drawings, A represents a wheel, the periphery of which is to be
coated with a layer of polishing material, mounted to rotate on its axle a, which rests
in bearings 6 of framework B.
6 is a crank on the axle a for rotating the wheel.
C is a table supported on said framework, its edge c adjacent to the polishing-wheel
being undercut.
D is a frame resting upon the table C and having flanges d d¹ depending along
the front edge c and rear edge of the table, respectively. The flange d is slightly
dovetailed under the undercut edge c, which latter acts as a pivot point against
which the frame D is tilted by means of a screw-threaded bolt e passing therethrough
and bearing against the top of table C. Bolt e is rotated by a hand wheel e¹.
The pressure roller is composed of two end discs ff, each having, respectively,
a trunnion f2f3 bearing in the frame D. Between the discs ff¹ is clamped a ring g,
the edges of the discs extending slightly beyond the ring, so that in effect the roller
has a peripheral groove of a coutour corresponding to that to be imparted to the
polishing material of the finished wheel. Passages h h extend through trunnion f²
to the interior of the drum, one serving as a steam inlet and the other as an exhaust..
Any suitable connections may be made with a source of steam-supply.
In operation the frame D is tilted so that the heated roller presses against the
periphery of wheel A, which latter is then rotated by crank b¹. During its rotation
the polishing material is held against the periphery thereof, (by hand and other
suitable means not shewn,) and that which adheres to the wheel is rolled down into
a compact and even coating of uniform thickness, as already described.
I am aware that it has heretofore been proposed to employ heated rollers for the
purpose of smoothing and drying or hardening a polishing material composed of glue
and emery upon the surface of a grinding-wheel, the polishing wheel in such
apparatus being mounted to rest by its own weight upon the heated rollers, no other
power being employed for pressing the wheel and rollers together and the driving
power being applied to the rollers. According to my invention the heating-roller is
held against the surface of the wheel by positive and unyielding pressure and the
wheel itself is positively rotated in contact with said roller instead of resting loosely
thereon and receiving motion by friction.
By my invention the polishing material (such as bees wax, tallow or paraffin and
emery) is softened and spread by the action of the heated roller, whereas the old
operation above referred to consisted in hardening and drying the polishing
material.
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. In the-glazing-or-polishing-of-cutlery-and other articles-the-employment of a
wheel or wheels with roughened-surface-to-receive-and-hold-the-glazing or polishing
material-substantially as described.
1. The herein-described process of applying to the surface of a wheel a coating
of polishing material which will soften by heat, said process consisting in preparing a
mixture, such as bees wax and emery, rotating the wheel, applying said mixture to
the wheel while rotating, and softening and spreading the mixture upon the surface

page_text: of the wheel as the former is applied to the latter, by the pressure of a rotating
heated body, substantially as described.
2. 3. In an apparatus for applying polishing material consisting of a mixture of
abrading and binding material that will soften by heat to a polishing-wheel, the com-
bination of a frame in which the polishing-wheel is mounted, and a heated roller
mounted in a separate frame, said frames being adjustably connected, so that the
polishing wheel and roller can be brought into contact during the application of the
polishing material, and removed from contact when the apparatus is not in operation,
substantially as described.
3. 4. Apparatus for applying a polishing material such as a mixture of bees wax
and emery to the surface of the wheel in a compact and uniform manner, consisting
of a rigidly mounted roller adapted to be pressed against the wheel, bearings in which
said wheel is rigidly mounted, means for heating the surface of the roller, means
for adjusting the pressure roller and wheel relatively to each other, and driving
means for rotating the wheel, substantially as described.
4. In apparatus for applying polishing material to the surface of a wheel, a
roller mounted in a suitable frame, bearings for rigidly holding the wheel, means
for rotating the wheel, and means—such as a screw-for tilting the frame to adjust
the roller with reference to the polishing-surface, substantially as described.
Date
1000
~
W. SWINDELL,
Imperial Chambers, Albert Street, Derby, Agent for the Applicant.