Improvements in Sinks, Jaw-boxes, Washing Tubs, Troughs, and the like.
Year: 1897

page_text: Date of Application, 1st Sept., 1897
Complete Specification Left, 26th May, 1898-Accepted, 1st Sept., 1898
TRUVIDIONAL DILUIFICATION.
Improvements in Sinks, Jaw-boxes, Washing Tubs, Troughs, and
the like.
I, STEWART ROBERTSON, Sanitary Engineer, and Merchant and Agent for Sanitary
Appliances, 55, Yearnan Shore, Dundee, in the County of Dundee, Scotland, do hereby
declare the nature of this invention to be as follows:-
This invention has for its object the improvement of sinks, jaw boxes washing tubs,
troughs and the like so that when porcelain or glass goods are being washed, they
will not be so apt to be broken; and when the bottom of sink is worn it may be
removed and replaced or the worn portion thereof renewed. I propose to effect this
improvement by substituting a bottom of india rubber American fiber, gutta-percha,
wood or other suitable material instead of a bottom of the same material of which the
sides or walls of sink are made. The sides or walls of sink may be made of porcelain
earthenware fire clay plain, glazed or enamelled, cast iron brass copper or other suitable
material and the bottom fitted to same as hereinafter described.
The invention may be made use of in various ways, I proceed to describe one
method, viz., its application to a fire clay enamelled sink of the ordinary square or
Belfast pattern. The body or sides of sink will be made in the usual way, but at the
bottom the sides will terminate by a horizontal flange protruding outward from the
four sides.
This flange will be perforated by holes at suitable intervals. A sheet of
india rubber will then be placed so as to form the bottom of the sink, with suitable
arrangement for waste and overflow and will extend to the full size of the sink
including the flanges, and will have holes to correspond with the holes in said flanges.
Under the bottom of india rubber will be placed a sheet of iron with suitable arrange-
ment for waste and overflow and having holes on each edge to corrospond with the
holes in india rubber and the holes in flanges. A strip or bar of iron will be placed on
the upper side of fire clay flanges with holes to correspond to holes in fire clay flanges
india rubber and sheet iron. Screwed iron bolts will then be passed through the
holes in the sheet iron, india rubber, fire clay flanges, and strip or bar of iron and
fitted with nuts, and by this means the various parts above described will be drawn
together and the sink made watertight.
Another method I describe as follows. The ordinary square or Belfast pattern may
be made in the usual way but only the sides enamelled the bottom being left of plain
fire clay. All round the sides at bottom will be sunk in the sides a groove having
holes in same.
A sheet of india rubber will be fitted over the plain fire clay bottom
and up the sides to top of groove. The india rubber bottom will then be fixed with
iron bars one outside and one inside having holes to correspond with holes in fire clay
and india rubber and fixed with bolts and nuts as before described.
Dated this 30th day of August 1897.

page_text: Improvements in Sinks, Jaw-boxes, Washing Tubs, Troughs, and
the like.
I, STEWART ROBERTSON, Sanitary Engineer and Merchant, and Agent for Sanitary
Appliances, 55, Yeaman Shore, Dundee, in the County of Dundee, Scotland, 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 has for its object the improvement of sinks, jaw boxes, washing
tubs, troughs and the like so that when porcelain, glass or other brittle goods are
being washed in said sink they will not be so apt to be broken and when the bottom
of said sink is worn it may be removed and replaced or the worn portion thereof
renewed. I propose to effect this improvement by substituting a bottom of India
rubber, American fibre gutta-percha, wood or other suitable material instead of a
bottom of the same material of which the sides and walls of sink are made. The
sides or walls of sink, wash-tub, trough or the like may be made of porcelain,
earthenware fireclay, plain glazed or enamelled cast iron, brass, copper, wood or other
suitable material and the bottom fitted to same as hereinafter described. The
invention may be made use of in various ways. I proceed to describe one method
vis. its application to a fireclay enamelled sink of the ordinary square or Belfast
pattern as shown Fig. 1. The body or sides of walls of sink A A will be made in
the usual way but at the bottom, said sides of walls will terminate by a horizontal
flange B protruding outward from the four sides. This flange will be perforated by
holes at suitable intervals, a sheet of india-rubber D, will then be placed so as to
form the boltom of the sink, with suitable arrangement for waste and overflow
and will extend to the full size of the sink including the flanges and will have holes
to correspond with the holes in said flanges. Under the bottom of india-rubber will
be placed a sheet of iron E with suitable arrangement for waste and overflow
and having holes on each edge to correspond with the holes in india-rubber and
the holes in flange.
A strip or bar of iron will be placed on the upper side of fireclay flanges with holes
to correspond to holes in fire-clay flanges, india-rubber and sheet iron. Screwed iron
bolts C will then be passed through the holes in the sheet iron, india-rubber, fireclay
flanges and strip or bar of iron and fitted with nuts and screwed tight and by this
means the various parts, above described, will be drawn together and the sink made
watertight.
The flange B Fig. II at bottom of the walls or sides of sink A A as before described
may be turned inwards instead of outwards, and the bottom fixed as before
described.
The flange may also be made on the bottom instead of on the walls or sides of the
sink to go either inside or outside said walls or sides and fixed so as to make a
watertight joint.
Another method I describe as follows.
The ordinary square or Belfast pattern may be made in the usual way, but only
the sides glazed or enamelled A A Fig. III the bottom being left of plain fireclay G.
All round the sides or walls at bottom inside of sink will be sunk a groove having
holes in same. A sheet of india-rubber D will be fitted over the plain fireclay bottom
and up the sides to top of groove. The india-rubber bottom will then be fixed with
iron bars one outside and one inside having holes to correspond with holes in fireclay
and india-rubber, and fixed with bolts and nuts C as before described.

page_text: Having now particularly described and ascertained the nature of my said invention,
and in what manner the same is to be performed, I declare that what I
claim is :-
First. The combination and arrangement of parts as hereinbefore described and
shown Fig. I and II particularly the substituting of a bottom of other material from
that of which the walls or sides are made and fixing same by means of flanges, screws
and nuts or otherwise to attain a watertight joint.
Second. The arrangement herein before described whereby the sides or walls of
sink, wash-tub, trough or such like may be enamelled and the bottom plain as shown
Fig. III. to receive bottom of wood, india-rubber or other suitable material and fixed
by means of bars, nuts and screws or otherwise to attain a water-tight joint.
Dated this Twenty-third day of May 1898.
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