Improvements in Pumping and Blowing Machinery, applicable also for use as a Motor.
Year: 1890

page_text: Date of Application, 12th July, 1890-Accepted, 23rd Aug., 1890
COMPLETE SPECIFICATION.
Improvements in Pumping and Blowing Machinery, applicable also
for use as a Motor.
I, EDWARD JORDAN, of No. 26, The Parade, Cardiff, in the County of Glamorgan,
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 :-
My invention relates to improvements in pumping and blowing machinery and
is applicable also for use as a motor but it is more particularly applicable to chain
pumps.
In chain pumps as hitherto made, the chain of lifts, or discs, has always entered the
pump-pipe at the bottom, and left it at the top, consequently it has not been practicable
for such a pump to lift water from a lower level than the foot of the pipe, nor to
deliver it at a level higher than the top of the pipe.
According to my invention a chain pump is produced which is capable of lifting
and forcing water from and to any height, as in the case of ordinary lift and force
pumps.
In carrying my invention into effect I provide an endless pliable chain, or band, of
suitable material, to which a series of lifts is pivotted. This chain passes round a pair
of pulleys adapted to be driven in any convenient way.
The entire chain and both pulleys are enclosed within a chamber with which the
suction and delivery pipes communicate. The pump-barrel occupies one side of this
chamber.
The lifts are pivotted to the chain but not across their centre, so that, one side being
heavier than the other, they all leave the top pulley in their return travel in a vertical
position.
There is a diaphragm across the chamber on a level between the two pulleys, and
through it the returning chain and vertical lifts must pass.
At this point a
suitable stuffing box is provided so that the passage of the chain and lifts through the
diaphragm is water tight.
In order that my invention, and the means by which the same is to be carried into
practical effect, may be thoroughly understood, I will now describe them in detail,
referring in so doing to the accompanying drawings which are to be taken as part of
this specification and read therewith, but not as limiting my invention to the particular
application described in connection with them.
Fig. 1 is a vertical section taken on the line A-B of Fig. 3.
Fig. 2 is a vertical section taken on the line C-D of Fig. 1.
Fig. 3 is a sectional plan taken on the line E-F of the Fig. 1.
The foregoing figures illustrate the construction and operation of my invention as
a chain pump.
G is the pump chamber, H the suction and I the delivery.
Jis the pump-barrel occupying one side of the chamber. It is shewn as rectangular
in cross section, but my invention does not confine me in respect of this detail. The
lining jis grooved at the sides to receive the bands constituting the chain.
K is the top pulley; and L, the bottom one. The chain passes round them in the
ordinary way, and motion is given to either the top or bottom pulley, whichever way
be most convenient.
The constructional details of the pulleys, chain, and lifts illustrated in the figures,
are those which I find to be the most convenient; but they may be varied, if desired,
provided that proper provision is always made for the lifts to pass water-tight through
the stuffing box in the diaphragm described further on.

page_text: flexible bands, m, m which pass round the pulleys close up to the shroudings. N, N are
the lifts, of the same thickness as the bands. They are, of course, of the same shape
and size as the cross section of the pump-barrel. They are respectively pivotted to the
chain, but the pivotal line, or pin, is not coincident with the central line of the lift,
but is nearer to the inside edge n¹ than to the outside one n². The consequence is that,
as the lifts travel round the bottom pulley, the outer edges tend to drop away from it,
thereby keeping the inner edges n¹ in constant contact with the central portion of the
periphery of the pulley, which portion is of a smaller diameter than that of the outer
portions which carry the bands. The diameter of the central portion is so adjusted
that the outer edge of a lift shall enter the foot of the barrel in contact therewith, the
barrel foot being suitably bevelled. As the lift rises, the inner edge reaches the
opposite edge of the barrel, and as the pressure upon the outer portion of the lift is
greater than upon the inner, the two edges n', n³ are automatically packed.
It is the above described excess of weight on the part of the outer portions of the
lifts which causes the latter, as soon as they have passed the top pulley, to assume
the vertical position necessary to enable them to pass the stuffing box in the diaphragm,
and as the lifts and bands are of the same thickness, their cross section will now be a
regular parallelogram.
The lifts may be arranged to work through the barrel in the horizontal plane,
instead of obliquely, if preferred. For this purpose, suitable stops on the bands are
provided.
O is the diaphragm extending from the outer face of the pump-barrel across the
chamber to the other three sides, thereby dividing it into two distinct sub-chambers.
P is the stuffing box in the diaphragm. It may be of any suitable construction,
but is, preferably, fitted with guides on its upper surface adapted to guide the lifts
into it.
A pump constructed according to my invention is not restricted to the vertical
position, but may be fixed to work in a horizontal or oblique position, due provision
being made to effect the "feathering," i.e., the several proper motions, of the lifts about
their axes.
The invention constructed and operating as above described may also be used as a
blower for moving bodies of air. When it is to be used as a motor, the steam is
delivered through the delivery I, and exhausts through the suction H.
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. The combination of chain, pivotted lifts, and stuffing box, as and for the purpose
set forth.
2. The combination of chain, pivotted lifts, lower pulley adapted in virtue of a
reduced periphery to control the angularity of the lifts and pump-barrel, as and for the
purpose set forth.
3. The combination of barrel, chamber, diaphragm and stuffing box, as and for the
purpose set forth.
4. The combination of barrel, chain, pivotted lifts, pulleys, chamber, diaphragm and
stuffing box, as and for the purpose set forth.
5. The combination of barrel, chain, pivotted lifts, pulleys, chamber, diaphragm,
stuffing box and suction and delivery as set forth.
Dated this 12th day of July 1890.
PHILLIPS & LEIGH,
No. 22, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.