A Portable Damping Apparatus for use in Cleaning School Slates.
Year: 1889

page_text: Date of Application, 8th Oct., 1889
Complete Specification Left, 5th July, 1890-Accepted, 13th Sept., 1890
PROVISIONAL SPECIFICATION.
A Portable Damping Apparatus for use in Cleaning School Slates.
I JAMES PEARSON of No. 9 Well Bank Haslingden in the County of Lancaster,
Cotton Mill Manager do hereby declare the nature of this invention to be as
follows:-
:-
The apparatus consists of a small box constructed of either metal, or wood of any
shape but preferrably that of an oblong cylinder, as shewn, markd D. in drawing:
A & A are valves standing nearly opposite each other: B & B' are wires carrying
springs being attached to valves A & A', terminating in a ball or push C & C at
each valve: E is a stay fixed across the diameter of the box, having two eyes on it;
through which the wires B & B slide -The method of using the apparatus, is,
by slightly pressing push C₁ against the slate, at the same time pressing push C
(to admit air into the cylinder), a ready supply of water is then given: As soon as
push is removed the cylinder is closed:-To fill the water reserve, it is required to
submerge the cylinder & at the same time to press push (".
This invention is intended to (& will) make the cleaning of school slates more
effectual; & obviate the uncleanly & unhealthy habit now in vogue; viz. spitting on
the slate to clean it.
For the purpose of closing the valves at A & A' I also use one wire only marked B
(as shewn in Fig. 3) running direct from A to A¹. I also employ any method or
make of spring for acting on the valves, applied from either inside or outside of the
cylinder- also optionally place the valves either inside or outside of the cylinder.
When the reserve is made with connection with both valves by wire marked B
(Fig. 3) the system of springing preferred is by one of the three methods shewn &
numbered 1, 2 & 3 (Fig. 3) the stay E having only one eye. No. 1 (dotted line)
shows a strong elastic band stretched across valve A¹, through which wire B passes.
No. 2 shews ordinary helix spring. No. 3 shews curved steel spring the end at S
being soldered to the cylinder. The valve A is acting outside the cylinder in Fig. 3.
The valves as shown in Fig. 3 being directly opposite each other.
COMPLETE SPECIFICATION.
A Portable Damping Apparatus for use in Cleaning School Slates.
I JAMES PEARSON of No. 9 Well Bank Haslingden in the County of Lancaster
Cotton Mill Manager 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 :—
:
The apparatus consists of a small box constructed of either metal or wood of any
shape but preferrably that of an oblong cylinder as shewn in drawing marked D:-
A & A are valves standing nearly opposite each other-B & B' are wires
(carrying springs) being attached to valves A & A', terminating in a ball or
push C & C at each valve-E is a stay fixed accross the diameter of the box, having
two eyes on it through which the wires B & B' slide -I also sometimes make the
valves one inside and one outside the cylinder, both valves being placed on one wire B
valves A & A being directly opposite as shewn in Fig. 3 in drawings as left with
l'rovisional Specification-Also when a through wire B is used I sometimes only have
one ball or push; preferrably at inside valve A', upon pressure of which valve A is
opened for outlet: When this method is adopted the top of the box at valve A is
countersunk, so that when the ball at A' is pushed to the extreme distance, the outside
[Lavice b21
:

page_text: valve A does not protrude boyond the level of the box :-I also employ any method or
make of spring for acting on the valves applied from either inside or outside the
cylinder When the apparatus is made by both valves being placed on one wire B-
the system of springing preferred is by one of the three methods shewn & numbered 1, 2
and 3 (Fig. 3). Number 1 (dotted line) shews a strong elastic band stretched across
valve A', through which wire B passes:-Number 2 shews ordinary helix spring
Number 3 shews curved steel spring the end at S being soldered to the cylinder :-In
Fig. 3 the valves are exactly opposite & valve A is acting outside cylinder.
The method of using the apparatus is by slightly pressing push C₁ against
the slate at the same time pressing pushing C to admit air, a ready supply of water is
given out.
But when only one ball is used and both valves on one wire, the pressure upon the
inside valve A opens valve A the supply of water being given at A.
The apparatus is automatically filled by submersion on pressing the balls.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed 1 declare that what I
claim is :
1..A portable damping apparatus for cleaning school slates, which shall be
watertight & actuated by valves which shall be worked by any system of springs
whatsoever.
2. That such damping apparatus shall be self-filling-and that by pressure upon
the pushes or balls, shall give out an adequate supply of water for its purpose.
3. That I may have the valves worked by seperate pressures or that one pressure
shall actuate both valves.
4. That I can construct the apparatus with the valves both working inside-or
on working inside & another outside.
5. That this invention is intended to promote cleanliness; as its use obviates the
uncleanly & unhealthy habit of spitting upon school slates for the purpose of cleaning
them.
Dated this 4th day of July 1890
JAMES PEARSON.