Improvements in Pumps.
Year: 1888

page_text: Date of Application, 5th Nov., 1888
Complete Specification Left, 6th Aug., 1889-Accepted, 7th Sept., 1889
PROVISIONAL SPECIFICATION.
Improvements in Pumps.
A communication from EMIL Capitaine, of Berlin, in the Kingdom of Prussia,
Engineer.
I, Alfred JULIUS BOULT of 323 High Holborn in the County of Middlesex,
M.I.M.E. do hereby declare the nature of this invention to be as follows:-
--
In a pump constructed according to this invention one end of a tubular plunger
is normally held against a stop by a spring. Against this end of the plunger one
end of a co-axially arranged rod herein termed the "valve rod" is adapted to operate
so as at that part to close the passage through the plunger. This valve-rod is
normally held away from the plunger by a spring with a degree of pressure which
is adjustable by suitable means, and between it and the eccentric or other device by
which the pump is operated is preferably introduced some sort of buffer to render
the working smooth. At the outlet the pump is provided with a valve held against
its seat by a spring or by equivalent means.
When the pump is in operation the valve-rod after part of its stroke in one direc-
tion is pressed against the end of the tubular plunger as to imprision all the liquid
contained between the said rod and the valve in the outlet so that while the valve-
rod is moving through the rest of the said stroke the water is forced through the
outlet valve. On the return stroke the outlet valve being closed the rod leaves the
end of the tubular plunger which in its return action admits fresh liquid ready to be
forced through by the valve-rod enclosing it in the plunger and moving it as before
stated.
The pump may be modified in its construction for example the spring operating
on the plunger may be dispensed with and the valve-rod may be so connected to it
as to be capable of moving independently of the said plunger.
Dated this 5th day of November 1888
W. P. THOMPSON & BOULT,
Agents.
COMPLETE SPECIFICATION.
Improvements in Pumps.
A communication from EMIL CAPITAINE; of Berlin, in the Kingdom of Prussia,
Engineer.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
M.I.M.E., 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:-
In a pump constructed according to this invention a tubular plunger is normally
held against a stop by a spring. Against the end of the plunger opposite to that
against which the spring bears one end of a co-axially arranged rod herein termed
the "valve rod" is adapted to operate.so as at that part to close the passage through
the plunger. This valve-rod is normally held away from the plunger by a spring
with a degree of pressure which is adjustable by suitable means, and between it and
the eccentric or other device by which the pump is operated is preferably introduced
some sort of buffer to render the working smooth. At the outlet the pump is pro-
vided with a valve held against its seat by a spring or by equivalent means.
When the pump is in operation the valve-rod after part of its stroke in one
direction is pressed against the end of the tubular plunger so as to imprison all the
Price 1

page_text: liquid contained between the said rod and the valve in the outlet so that while the
valve-rod is moving through the rest of the said. stroke the water is forced through
the outlet valve. On the return stroke the outlet valve being closed the rod leaves
the end of the tubular plunger which in its return action admits fresh liquid ready to
be forced through by the valve-rod enclosing it in the plunger and moving it as
before stated.
The pump may be modified in. its construction for example the spring operating
on the plunger may be dispensed with and the valve-rod may be so, connected to it
as to be capable of moving independently of the said plunger.
In the accompanying drawings;-
A is the pump casing in which a tubular plunger Bis worked by means of a
rod C. The working of the plunger is made water-tight by a leather collar D and
the said plunger has an opening b, through which the liquid. enters. In the pump
shown in Figs. 1 and 2 the downward motion of the plunger is effected by a spring a
and the downward motion of the rod C by a spring c. The rod C has a collar or
valve by which when resting on its seat all leakage is avoided. F is the inlet
canal through the valve H the liquid passes into the pipe h. By an upward
movement of the red C through the medium of the link or eccentric rod J and of
the pivotted spring lever or buffer N (which is interposed between the rods C and J)
the aperture of the plunger B is closed and in its further upward course pushes
the plunger B with it by which means the liquid above the valve or aperture bis
.forced through the valve H, and through the canal F fresh, quantities of liquid are
drawn. When the rod C descends it retires from the plunger, leaves the aperture b
free and a fresh quantity of water passes through the said aperture into the plunger.
By screwing down the collar M the lifting of the pivot can be limited.
In Figs. 3, 4 and 5 it is shown how by means of a collar on the rod C resting
upon a ledger the piston can be drawn down and the spring a dispensed with.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, as communicated to me
by my foreign correspondent I declare that what I claim is:
1. In a pump the combination of the plunger B 6 with the rod Ci and the
springs a c and adjustable collar M substantially as herein described and illustrated
in Figs. 1 and 2. of the accompanying drawings.
2. In a pump the combination of the rod Cand collar p with the plunger Br
substantially as herein described and illustrated in Figs. 3, 4 and 5 of the
accompany drawings.
3. The combination in a pump of the three spring elements such as N which divides
the rods J and C-c which returns. the rod C to its normal position and a which returns
the plunger B to its normal position the whole operating substantially in the manner
described and illustrated in the accompanying drawings.
4. The complete pump substantially as herein described and illustrated in the
accompanying drawings.
Dated this 1st day of An 1880
W. P. THOMPSON & BOULT,
Agents.