Year: 1894

page_text: Date of Application,. 9th Nov., 1894.
Complete Specification Left. 7th June;. 1895-Accepted, 13th July, 1895
BERT. E.. GODDARD..

page_text: COMPLETE SPECIFICATION.
An Improved Valve or Clack Seating or Plate for Slip or other
Pumps.
I BERTRAM Edward Goddard Mayfield The Brampton Newcastle in the
County of Stafford, 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 object of this invention is to construct the valve seatings of "slip" and other
pumps of earthenware china, glass, or other vitrified material or partly of metal
and partly of vitrified material.
Now according to this invention I provide a valve seating of earthenware, china,
glass or other suitable vitrified material which seating is surrounded by a ring of
metal to which it is attached by keying the seating and ring together by means of
lead type metal or other suitable metal or alloy run into suitable grooves or
channels formed in the seating and ring or by any other suitable means.
And in order that my said invention may be fully understood I will proceed to
explain the same with reference to the accompanying sheets of drawings in
which :-
Fig. 1 represents plan of a valve seating for a slip pump constructed according
to this invention.
Fig. 2 is section of same.
Fig. 3. is plan of another form of valve seating also constructed according to this
invention.
Fig. 4 is section of same.
Fig. 5 is plan of a third form of valve seating constructed according to this
invention.
Fig. 6 is section of same.
Fig. 7. is plan of a valve seating in which the joint between the earthenware and
metal rings is made by means of an india rubber ring.
Fig. 8. is section of same shewing method of connecting the valve seat to the
pump.
Fig. 9. is an enlarged view of portions of the seating and metal ring shewing the
joint.
The same letters denote the same parts in all the figs.
a is the valve seat made of earthenware, stoneware, china, glass, or any other
vitrified material having a groove b round the outer edge thereof see Fig. 1.
c is a ring of steel having a similar groove 6' on the inner edge thereof.
The ring c is provided with holes d through which pass the bolts which secure
the seating to the pump barrel. The seating a is placed on a flat plate the ring c
dropped over it and molten lead, type-metal or other suitable metal or alloy poured
into the space between the ring c and seating a which metal secures the ring and
seating firmly together.
In Figures 3 and 4 the construction of the ring and seating are identical except
that the groove in the ring is V shaped and the periphery of the seating is turned
to correspond with the groove in the ring a space f being left between the ring and
the seating which is filled in with lead or other suitable metal or alloy as
herein before stated.
In Figs. 5 and 6 a dovetailed recess is formed on the inside edge of the ring e
and the seating consists as shewn of a short flanged tube.
The space between the ring e and seating a is filled in with metal or alloy as
herein before stated.
The seating shewn at Figs. 7, 8 and 9 is designed to obviate the necessity of
using metal to make a joint between the metal ring and the valve seat. According

page_text: to this construction I form the valve seating a with a beading 9 on the periphery
thereof and I form a beading h on the upper side of the inner edge of the ring c.
The seating a is placed in position in the pump the piece or ring of indiarubber
or other suitable jointing material i placed round the seating above the bead as
shewn at Figs. 8 and 9, and the ring c placed over it. On screwing up the bolts
the rubber or other packing is compressed forming an air tight joint and the
seating a held firmly down in its place.
By this method of construction the seating may be turned over when worn out
and the unworn face used as a seating for the valve or clack.
Although I have shewn the faces of the valve seating and the metal ring flat
yet I wish it to be thoroughly understood that I do not bind myself to this as the
faces of the valve seating and the metal ring may be of any suitable configuration
corrugated for instance.
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. Constructing the valve seats of slip and other pumps of earthenware china,
terra-cotta, glass and similar materials substantially as and for the purpose stated.
2. In "slip" and other pumps the combination of a valve seating of glass, terra-
cotta earthenware, china or similar material with a metal ring substantially as
specified.
3. In "slip.
"and other pumps the combination of a valve seating of glass
terra-cotta, china earthenware or other similar material such as a having a groove b
round the periphery thereof with a metal ring such as c having a similar groove b¹
the said seating and ring being secured to each other other by means of lead or
other metal or alloy run into the said grooves substantially as herein before described
and shewn by the accompanying drawings.
4. The modified forms of the valve seating and metal ring shewn at Figs. 3. 4.
5. and 6 of the accompanying drawings.
5. In "slip" and other pumps the combination of a valve seat c of china, terra-
cotta, earthenware or similar material having a bead 9 on the periphery thereof
with a metal ring c having a beadh thereon and a packing ring i of indiarubber
or other suitable material all substantially as hereinbefore specified and shewn by
Figs. 7. 8 and 9 of the accompanying drawings.
6. The constructions of valve seats for slip and other pumps substantially as
hereinbefore specified and shewn by the accompanying drawings.
Dated this 6th day of June 1895.
ERNEST SALAMAN,
Pinner's Hall, Great Winchester Street, E.C., Agent for Applicant.