IMPROVEMENTS IN KNIFE CLEANING AND POLISHING APPARATUS
Year: 1879

page_text: LETTERS PATENT to James Osborn Spong, of No. 28, King William Street,
Strand, in the County of Middlesex, Manufacturer, for the Invention of
66
IMPROVEMENTS IN KNIFE CLEANING AND POLISHING APPARATUS."
Sealed the 17th February 1880, and dated the 23rd October 1879.
PROVISIONAL SPECIFICATION left by the said James Osborn Spong at
the Office of the Commissioners of Patents on the 23rd October 1879.
JAMES OSBORN SPONG, of No. 28, King William Street, Strand, in the County of
Middlesex, Manufacturer. "IMPROVEMENTS IN KNIFE CLEANING AND POLISHING
APPARATUS,"
The object of the Invention is simplicity in construction and use.
The knives to be cleaned are held somewhat in the usual way in knife.cleaning
apparatus in or supported by the parts of the frame, so that the two sides of the
blades of the knives placed therein may be simultaneously acted upon by surfaces
for effecting the desired cleaning to such blades, such surfaces being applied to
revolving discs.
No axle passes through the two discs, but an axis from each disc projecting
outwards is supported by the framing through adjustable bearings acted upon by
nuts and screws, by which the extent of pressure of contact of the rubbing surfaces
may be regulated at pleasure..
To one of these axles a winch or other handle or other means of rotation is
applied, whilst by the friction of contact of one surface with the other motion to
one. leads to motion being given to both.
The parts of the frame are capable of opening one from the other upon hinge
joint, and they are readily held together by clip and screw, or otherwise as desired,
so that the surfaces of the two discs may be readily accessible for the better applica-
tion of cleansing powder or the removal therefrom of any foreign matters.
The base of each of the rubbing surfaces is formed with undulations or corruga-
tions, the direction of the ribs of the undulations or corrugations being radial or
inclined thereto,and the rubbing surface applied to such undulations may be leather
or other suitable cleansing and polishing material upon other suitable elastic
substance, but the effect of the undulations or corrugations is to afford more elastic
and effective cleansing and polishing surfaces.
The application of cleansing material on irregular or undulatory surfaces is also
applicable to other than rotary apparatus used in cleansing knives.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said James Osborn Spong in the Great Seal Patent Office on the 23rd
April 1880.
66
JAMES OSBORN SPONG, of No. 28, King William Street, Strand, in the County of
Middlesex, Manufacturer. IMPROVEMENTS IN KNIFE CLEANING AND POLISHING
APPARATUS."
The object of the Invention is simplicity in construction and use.
The knives to be cleaned are held somewhat in the usual way in knife cleaning
apparatus in or supported by the parts of the frame, so that the two sides of the
blades of the knives placed therein may be simultaneously acted upon by surfaces
for effecting the desired cleaning to such blades, such surfaces being applied to
revolving discs.
No axle passes through the two dises, but an axis from each disc projecting
outwards is supported by the framing through adjustable bearings acted upon by
nuts and screws, by which the extent of pressure of contact of the rubbing surfaces
may be regulated at pleasure.
To one of these axles a winch or other handle or other means of rotation is
applied, whilst by the friction of contact of one surface with the other motion to
one leads to motion being given to both.
The parts of the frame are capable of opening one from the other upon hinge
joint, and they are readily held together by clip and screw, or otherwise, as desired,
so that the surfaces of the two discs may be readily accessible for the better applica-
tion of cleansing powder, or the removal therefrom of any foreign matters.
The base of each of the rubbing surfaces is formed with undulations or corruga-
tions, the direction of the ribs of the undulations or corrugations being radial or
inclined thereto, and the rubbing surface applied to such undulations may be leather
or other suitable cleaning and polishing material upon other suitable elastic
substance, but the effect of the undulations or corrugations is to afford more elastic
and effective cleansing and polishing surfaces.
But that the Invention may be the better understood I will by the aid of
the accompanying Drawings proceed to describe my Invention more in detail
Figures 1 and 2. represent two opposite side views, Figure 3 and edge view, and
Figure 4 a section of apparatus arranged according to my improvements; Figures
5, 6, and 7 show parts separately in order that the details may be the better
understood. In each of the Figures the same letters indicate corresponding
parts.
b
a, a, indicates the stationary portion of the frame of the apparatus, which by
means of the feet a¹ or of other suitable fixing may be screwed or otherwise fixed
to, any suitable table or support to hold the apparatus steadily during its use;
and c are surfaces for effecting the desired cleansing or polishing, and the knives,
the blades of which are to be cleansed and polished are held between these polishing
surfaces with their handles resting against the rests d and between them and the
parts d', somewhat as in other knife cleansing apparatus.
These surfaces b and c are formed of leather or other suitable material on felt or
such like comparatively soft material applied to the discs and c', and the surfaces
of these discs and covered by the polishing leather or other polishing material
are formed undulatory by means of the ribs 62 thereon, as more clearly seen by the
side view and sectional edge view Figures 5 and 7. These ribs may be radial or
at an angle to the centre of such dises, and the polishing covering b, c, is held to
such dises 1, e, by being turned over the edges of those discs and tied thereon by

page_text: the running or lacing therethrough of cords or bands e, e, or by other suitable
means. The disc is formed with a boss b³, which is bored to receive and revolve
on a stationary pin f as an axis to rotate on.
The pin is supported at its outer end by the framing a, where it is held
stationary by the set screw f', and towards its other end by resting in the collar j,
which is free to turn in the framing a. One end of this collar bears against the
boss 3 of the disc 6', whilst the other end of it rests against the screw nut g, the
teeth of which take into the screw thread formed on the pin or axis f, by which
adjustment to the disc 6 in relation to the disc c is effected.
The disc c is supported in the moveable portion a² of the frame, and this moveable
portion is connected to the part a by a hinge a³ so that it may be turned down
with its disc e, as indicated by the dotted lines A in Figure 3, when required, and
the two parts a and a² are held in proper relations for use by means of the hinged
screw clamp h, which is capable of turning on a pin has an axis, .carried by a
projection a from the part a, and of being passed over the projection a³ carried by
the part a², when these two parts a and a² may be clamped together to the extent
desired by the thumb screw h². Or in place of the part a² being connected to the
part a by hinge and clamp as just described it may be formed to be completely;
separated and then connected to the part a, and held in suitable relative position
by means of clamping pieces and screws, or otherwise, as desired.
C
The disc c is supported so as to be capable of revolving in the parts of the frame a²
by being affixed to one end of the axle or shaft i, on the other end of which is
affixed the winch handle . The adjustment to this disc c is effected by the axle i
passing through a socket k, and being formed like the pin f with a screw thread 13
to receive the adjustable screw nut i* to bear against one end of the socket k, whilst
the other end of that socket bears against the boss of the disc c for the adjust-
ment of that disc in relation to the disc b.
Having thus described my Invention and means which I adopt in carrying the
same into effect I would have it understood that what I claim is, the arranging or
combining parts forming knife cleaning and polishing apparatus whereby revolving
discs with corrugated or ribbed surfaces covered with sheet leather or other suitable
cleaning and polishing material are supported by their separate axes to revolve in
a frame, part of which is moveable for the separation of the polishing surfaces and
the securing sheets of such polishing material to the discs by lacing or binding the
edges thereof, substantially as described.
In witness whereof, I, the said James Osborn Spong, have hereunto set my
hand and seal, this Twenty second day of April, in the year of our Lord One
thousand eight hundred and eighty.
JAMES OSBORN SPONG. (L.S.)