Improvements in Pumps.
Year: 1894

page_text: Date of Application, 26th Juy, 1894
Complete Specification Left, 10th Apr., 1895-Accepted, 1st June, 1895
Improvements in Pumps.
EDWIN JOHN LANE Engineer 53 Gore Road Victoria Park, do hereby declare
the nature of this invention to be as follows :-
To carry out my invention I combine the valve seats of a pump with their covers
and in such a way and form that by the disconnection of the covers the valves and
seats are released from the pump body.
Did this neth 1 of 1.1 1004
Improvements in Pumps.
I EDWIN JOHN LANE of 53 Gore Road Victoria Park in the County of London
Engineer 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 enable the valves and valve seating to be
readily removed from pumps of all kinds for grinding, boring, and other purposes
without removing the pump from its bed or other support.
Now according to this invention I combine the valve seatings of pumps air
compressors and the like with the valve chamber or clack box covers in such
a manner that when the said covers are disconnected from the chambers or boxes
the valves and seatings are removed from the pump body or the like.
And in order that my said invention may be fully understood I will proceed to
explain the same with reference to the accompanying drawings in which :-
Fig. 1 represents side elevation of a plunger pump constructed according to this
invention.
Fig. 2. is front elevation of same.
Fig. 3. is plan (half in section) of same.
Fig. 4. is section of same through delivery valve chamber.
Fig. 5. is section through suction valve chamber.
Fig. 6. is section of clack box of a mining pump constructed according to this
invention.
Fig. 7. is plan of same.
"
Fig. 8 is section through valve box of a " Cameron pump of the ordinary
type.
Fig. 9. shews section through suction chamber of a single ram "Cameron "
pump with the suction and delivery valves side by side.
Fig. 10 is front view of a double ram "Cameron" pump (partly in section)
through valve chamber.
The same letters denote the same parts in all the figs. The body of the pump
shewn in Figs. 1 to 5 comprises the barrel a and valve chamber 6 cast in one piece.
c is the suction pipe, d the delivery pipe e the plunger the suction valve seating
[Price 8dr

page_text: bush the delivery valve seating bush the valve chamber door the valve seating
cast in one therewith in which are fitted the bushes for the valves . and g. j is the
delivery valve. The valve chamber is divided into four compartments by means of
the vertical partition k and horizontal partition . The door h is also provided
with a vertical partition k¹.
The sides of the valve chamber and the partitions and k are planed or
otherwise formed into V shape as shewn and the door h is shaped to fit indiarubber
insertion, asbestos, millboard or other suitable jointing material is interposed
between the meeting surfaces of the door and chamber and the door secured in
position by means of a single stud bolt / screwed into the chamber and passing
through a hole in the door h and the nut m. n is an orifice in the pump barrel
communicating with the suction chamber and o a similar orifice communicating with
the delivery chamber.
In the clack box shewn in Fig. 6. p is the clack box. h the door a piece of
metal cast in one with the door in which is fitted the valve seating 9. r is the clack
or valve.
The clack box p and door h have lugs ssssss cast thereon through which
pass bolts t to secure the door to the box strengthening ribs uu u are cast on the
clack box as shewn to compensate for the loss of metal cut away to enable the lid
to fit the box.
Fig. 8 shews the valve chamber of a "Cameron" type pump with the suction and
delivery valves one above the other. A is the column the lower part of which
forms the valve chamber h. h. are the chamber doors carrying the valve
seatings fg B. is the orifice communicating with the pump barrel. C is a dog
to hold the doors h h in position the dog being drawn towards the doors by
the bolt and nut m.
Figs. 9 and 10 shew respectively a single and double ram pump of the
"Cameron " type constructed according to this invention with valves side by
side instead of one above the other.
AA are the columns cast with the valve chambers A' is the column forming
the delivery air vessel.
The construction of the valve chambers and method of fastening the doors is
exactly the same as that herein before described with reference to Figs. 1. 2. 3.
4 and 5 and no further description is necessary. The valve chambers and
columns are preferably cast in one with the pump barrels. c is the suction
branch pipe the delivery branch (not shewn) is in communication with the
column A as usual. In large pumps it may be necessary to cast the valve seating
separate from the valve box door and to secure the seating thereto by bolts or
otherwise so that when the door is removed the seating will come away from
the pump body. Instead of the meeting faces of the door and chamber being
V shaped they may be semicircular or any other convenient shape.
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 seating of pumps in one piece with or attached to
the valve chamber cover or clack-box door substantially as herein before specified
and for the purpose stated.
2. In a pump the combination of a valve chamber (cast in one with or attached
to the pump barrel) divided into compartments by means of suitable partitions
with a door or cover having the valve seating formed integral with or attached
to the said door or cover substantially as herein before specified.
3. In a pump the combination of a valve chamber divided into compartments
with a door or cover adapted to be secured to the chamber by a single bolt and
out the said cover having the valve seatings formed integral therewith or attached
thereto substantially as hereinbefore specified.

page_text: 4. The construction of pumps and the valve chambers and clack-boxes therefor
substantially as hereinbefore specified and illustrated by the accompanying sheets
of drawings.
Dated this 10th day of April 1895.
T. E. HALFORD,
11, Furnival Street, Holborn, E.C., Agent for Applicant.