An Improved Pump.
Year: 1889

page_text: Date of Application, 15th Oct., 1889
Complete Specification Left, 15th July, 1890-Accepted, 16th Aug., 1890
PROVISIONAL SPECIFICATION.
An Improved Pump.
I, JAMES Moss of Mossford Street, Bow in the County of Middlesex, Engineer do
hereby declare the nature of this invention to be as follows
The pump of this invention is formed of a casing in which works a hollow piston
formed in one piece with or placed at the end of a hollow pump rod. The liquid to be
pumped is drawn in the up or forward stroke by the action of the piston through a
suction valve passing into the piston and hollow pump rod in the return stroke, the
pump rod thus acting as a delivery pipe. The piston is fitted with a discharge valve.
This kind of pump is well adapted for use in chemical works, distilleries, etcetera, as
the liquid by passing through the pump rod does not come in contact so much with
the glands of stuffing boxes and the leakage which usually takes place in this method
of construction does not occur.
Dated this 15th day of October 1889
JULIUS HALL,
Patent Agent,
80-81, Strand, London, W.C., Agent for the Applicant.
COMPLETE
SPECIFICATION,
An Improved Pump.
I, JAMES MOSS of 21 Studley Road, Forest Gate Essex, 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 :-
This invention consists of a cylindrical chamber A, having at its base a suction
chamber B, with a non-return valve C fitted. The pump plunger D, which is hollow,
is swelled at bottom, so as to form a piston and valve box in combination. The top of
the pump plunger is shewn with coupling tee piece F, which makes sliding contact
with another tube, not shewn, this latter tube being the channel through which the
discharge finds outlet. The suction chamber B is designed so that a fitting G shall
form a trunnion bearing, the suction entering through pipe H, which can be led to suit
any requirement.
The action of the pump is as follows-The liquid is drawn through the suction
pipe H, into the suction chamber B on the upstroke of the pump. On the downstroke
the non-return valve C closes, and the delivery valve E opens, the liquid flowing into
and through the hollow pump plunger, which really becomes the discharge pipe of the
pump.
The pump is shewn single-acting, but can be arranged as double acting. It can
also be made to work either as an ordinary fixed vertical or horizontal pump, or as
shewn, with the bottom, or otherwise, of pump arranged to form a bearing on which
it can revolve, or oscillate in order to accommodate itself to any moving mechanism.
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. Priority in the use and adaptation of a revolving or oscillating bearing to pumps.
2. Priority in the use and adaptation of a hollow pump rod, or plunger to serve the
purpose of a discharge ning no shown and described

page_text: 3. Priority in the use and adaptation of a pump rod, or plunger as a piston, discharge
valve, discharge pipe and pump rod, or plunger in combination.
4. Exclusive right to the particular arrangement of pump, herein described and
shewn.