Apparatus to be employed in the Cleaning of Slates, Blackboards, Glass, and such like Articles as used for Educational and other like Purposes.
Year: 1891

page_text: Date of Application, 19th Mar., 1891
CEBT
Complete Specification Left, 22nd May, 1891-Accepted, 27th June, 1891
PROVISIONAL SPECIFICATION.
Apparatus to be employed in the Cleaning of Slates, Blackboards,
Glass, and such like Articles as used for Educational and other
like Purposes.
We, JOHN HENRY WOODHALL, Gold's Hill, West Bromwich, Staffordshire, &
WILLIAM OSBORNE BRADLEY, Agenoria House, Great Bridge, Tipton Stafford-
shire, Schoolmasters, do hereby declare the nature of this invention to be as
follows:-
"A piece of wood, circular, square, oblong, or otherwise in shape; flat on one side,
with knob or projection on the other side to facilitate the holding whilst in use.
We propose to attach to flat side, by means of cement or other substance, a piece of
felt, flannel, cloth, or other porous substance, felt by preference. The said felt,
flannel, cloth, or other porous substance to be moistened before being used, and the
cleaning to be effected by rubbing the article to be cleaned. The cleaner when not
in use to be enclosed in box or lid made of tin, wood or other material, tin by
preference."
Dated this 18th day of March 1891.
JOHN HENRY WOODHALL.
WILLIAM OSBORNE BRADLEY.
COMPLETE SPECIFICATION.
Apparatus to be employed in the Cleaning of Slates, Blackboards,
Glass, and such like Articles as used for Educational and other
like Purposes.
We,
JOHN HENRY WOODHALL of Gold's Hill, West Bromwich, Schoolmaster,
and WILLIAM OSBORNE BRADLEY, of Agenoria House, Great Bridge, Tipton,
Schoolmaster, do hereby declare the nature of our said invention and in what maner
the same is to be performed, to be particularly described and ascertained in and
by the following statement:-
A piece of wood, circular, square, oblong or otherwise in shape; flat on one side,
with knob or projection on the other side to facilitate the holding whilst in use, we
propose to attach to flat side, by means of cement or other substance a piece of felt,
flannel, cloth or other porous substance, felt by preference. The said felt, flannel,
cloth or other porous substance to be moistened before being used and the cleaning
to be effected by rubbing the article to be cleaned.
The cleaner when not in use to be enclosed in box or lid made of tin, wood, or
other material, tin by preference.
The aim and object of our invention primarily being to assist the children or
scholars in schools in the cleaning of their slates, and also blackboards, and such
like purposes used in education, and the cleaning of glass in frames for pictures,
illustrations, and other analogous purposes being effected in a simple, economical,
and expeditious manner.
And in order that this our said invention may be more clearly understood we shall
now proceed to describe the same reference being made to the sheet of drawings
hereunto annexed, to the various figures and letters marked thereon (that is
o say)-
Fig. 1 is a view in elevation of our invention in its simplest and cheapest form
being a circular form in wood provided with a knob or projection, and a piece of
porous material such as felt or any other substance that will absorb and retain

page_text: moisture is fixed upon the under surface, fitting into a metallic case tin by preference,
when so required.
Fig. 2 is a plan view of same.
Fig. 3 is a view in elevation of our invention shewing the felt or porous material
for absorbing and retaining the moisture affixed to a metallic lid, which in turn fits
into a metallic body, both by preference being of tin. To the under surface of this
body we affix a second piece of felt or other suitable substance which will be
employed for taking up the moisture from the first used or for polishing as the case
may be.
Fig. 4 is a plan view of same.
c is the
The same letters of reference upon the several figures indicating the same parts.
In Figs. 1 and 2, a is the form of wood, with the knob or projection b.
porous material, d, is the metallic case tin by preference.
In Figs. 3 and 4, 6 is the knob or projection, e is the porous material, e, is the
metallic lid, y is the metallic body, is the felt or other substance.
By reference to Figs. 1 and 2 it will be clear that the apparatus can be manipulated
or applied to its purpose by means of the knob b, or even a, and when not required
can be secreted or contained in d. It can be introduced to the market in the case d,
or not; relating to Figs. 3, and 4, the mode of operating is the same, and when the
with felts is passed into g is the most convenient way of employing to its
e,
lid
purpose.
The felt or porous substance partakes of the shape or form of the wood, metal, or
other material to which it is fitted, which may be by cementing or any other
suitable manner. The object of the case d, and e, and, is to prevent evaporation,
and for cleanliness, the porous substance e, in all cases to be moistened being used.
The above being our said invention, we wish to say that we do not confine
ourselves to the precise details or arrangements of parts as shewn on the
accompanying sheet of drawings, as variations may be made, without departing
essentially from the principle of our said invention.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is
1st. Constructing apparatus of wood, or other suitable material to receive the
porous material to retain moisture, and the substance or material for drying or
polishing in connection to or with the case or body, of metal, or other suitable
material as herein before set forth and described.
2nd. The genera construction, combination, and arrangement of parts, sub-
stantially as and for the purposes, herein before described in the foregoing
Specification and shewn in the accompanying sheet of drawings.
Dated 22nd May 1891.
THOS. KENDRICK,
Agent for Applicants.