Year: 1888

page_text: Date of Application, 6th Mar., 1888
Complete Specification Left, 6th Dec., 1888
Complete Specification Accepted, 15th Jan, 1889
Mr. John MºMATH 133 Bath Street Glasgow Inspector of Property School
Board of Glasgow do hereby declare the nature of this invention to be as
follows:-
The invention consists of a trough, made of marble, slate, iron, wood, or other
suitable material, of any length required. This trough is made with bottom, back, &
sloped front, the top edge of the latter rounded, & the bottom grooved to front & back.
Divisions are made so as to form suitable compartments, & the lower edge of these
divisions has an aperture about 5 inches long to allow the water to circulate all along
the trough. The trough is bound together by copper bolts passing through close to
the ends & divisions from back to front. The back is made of less height than the
front, & this allows the water to flow over its edge while in use, into the receiver
behind, thus at once carrying off all scum & dirt. The supply is admitted by a
copper perforated tube laid inside the trough at the back angle, with the apertures
directed towards the front, the pressure of the water coming out of this tube produces
a wave which strikes against the front, rises, & passes across to the back, carrying
out all dirty water before it, thus keeping the water always clean. The receiver,
before referred to, is formed of a bottom & one side, (the back of the trough forming
the other side,) grooved together; the bottom is about 2 inches, more or less, below
the edge of the trough. The discharge from this receiver is carried by a pipe,
connected to an aperture in the bottom, & communicating with the drain, after being
properly trapped. Soap boxes, made of the same material as the trough, are placed
at intervals above the receiver, leaving space for the flow of the water beneath them.
The supply of clean water to the copper tube is taken from the main pipes in the
ordinary manner. The trough may be supported on brick or stone piers, iron brackets,
or in any other convenient way according to the situation.
The
1000

page_text: COMPLETE SPECIFICATION.
Improved Wash Hand Troughs.
I, JOHN MCMATH 133 Bath Street, Glasgow, Inspector of Property, School
Board of Glasgow, 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 wash hand trough for use principally in schools, hospitals,
asylums. prisons, reformatories and other public buildings, the improved trough being
made of marble, slate, iron, wood or other suitable material and of any desired
length.
On the accompanying drawings figure 1 is a perspective elevation and figure 2 a
transverse section of a trough as constructed in accordance with one modification of
my said Invention and as shewn more particularly by figure 2 the said trough is
composed of a bottom A, back B, and outwardly inclined front C, the upper edge of
which is rounded. The parts are held together by grooving the front and back B
and by entering tenons, made on the bottom A into the said grooves. The trough is
supported upon piers D) of brickwork or upon iron or other standards or supports and
throughout its length it is divided into two or more compartments by a partition or
partitions E, extending from the front to the back walls each compartment com-
municating with the next by an aperture F made at the bottom of the partition and
through which the water is free to circulate all along the trough. The parts of the
trough are bound together by copper or other bolts G, passed through from front to
back close to the ends H, and also at the division or partition E, if desired and the
back B is made of less height than the front C, to allow the water to flow over its top
edge into a receiver I and thence to the waste pipe J when the trough is in use.
Water is admitted or supplied to the tank through a perforated tube K, preferably
of copper laid along the inside of the trough near the line of junction of the bottom A
with the back B, and the perforations being so made as to direct the issuing jets
towards the front the water pressure creates a continuous wave which first striking
the front C then rises or curves upwards as indicated by the dotted line figure 2 and
thereafter passes over the back B, into the receiver carrying out all dirty water and
scum from the soap with it and so maintaining the water in the trough in a clean
and sanitary condition.
The receiver I is composed of a bottom slab and a back I' the back wall B of the
trough constituting the other side these parts being checked, grooved or rebatted
together as indicated and the discharge pipe J from the receiver is, after being
properly trapped, connected to the drain. Soap boxes or trays I made of the same
material as the trough are as seen at figure 1 placed at intervals above the receiver,
space being left for the flow of water beneath the said boxes or trays.
Figure 3 of the drawings is a perspective elevation and figure 4 is a cross section
of a modification of my said Invention the trough in this case being made of iron
and by preference cast in one piece, with the receiver I, although the trough and the

page_text: receiver may be formed separately in which case the top of the back wall B of the
trough overlaps the front wall I2 of the receiver and the space between the said walls
is made watertight with asbestos, cement or other suitable packing.
With any of the arrangements of the improved trough a branch may be connected
to the bottom as seen at M figure 4, for the purpose of emptying the trough
the said branch being also connected to the pipe J and when out of use closed by
a plug N.
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. The general arrangement and combination of parts constituting the improved
wash hand trough substantially as herein before described with reference to figures 1,
2, 3 and 4 of the annexed drawings.
2. In wash hand apparatus the combination of a perforated inlet pipe arranged as
set forth a trough having the height of the back lower than that of the front side and
a receiver into and through which a continuous current is directed by the perforated
pipe substantially as and for the purpose described.