Applicable also for Exhausting Purposes.
Year: 1886

page_text: Date of Application, 3rd Aug., 1886.
Complete Left, 31st Mar., 1887.
Complete Accepted, 3rd May, 1887.
Applicable also for Exhausting Purposes.
I SAMUEL MELLOR of 188 Wilmot Street, Bethnal Green, Middlesex, Engineer, do
hereby declare the nature of my said invention to be as follows:-
The object of this invention is to construct or arrange a rotary pump or exhauster
in such a manner that the liquid is caused to pass along semicircular barrels in
which two elongated yet rotating pistons work, which pistons are coupled by gear on
their respective axles.
Above each of the elongated pistons is a drop paul whose free end has a depending
loose fitting knuckle plate, which adjusts itself to the curvature of the elongated piston,
and being always in contact preserves the separation of the two portions of the barrel
casing for the proper passage of the liquid.
The knuckle plates 'also sweep solid matter such as Hops, grain and other material
from the surface of the elongated pistons and thus prevent the barrels, the casing or
working parts becoming choked.
The two drop pauls are mounted on the same axle pin and their journals are so
shaped that each has its own movement for work.
The two pauls have a kind of shield above them so fitted that the liquid or fluid on
its passage to the outlet pipe is not interfered with.
The actions of the pistons is such that each end-as elongations-presses upon and
pockets a volume of liquid or fluid and pushes it around within the semicircular
barrel and by the time said end is retiring from action, the other end has pressed upon
and pocket its volume of liquid or fluid and so on, the other piston acts in the same
manner but takes its motion alternately, thus the two pistons keep up a constant flow.
The important feature in this invention is, the adjustable knuckle plates, slides or
sweepers of the drop pauls and their combination with the elongated pistons."
1000
H. GARDNER,
166, Fleet Street, London,
Agent for the said S. Mellor.

page_text: Applicable also for Exhausting Purposes.
I SAMUEL MELLOR of 188 Wilmot Street, Bethnal Green, Middlesex, Engineer do
hereby declare the nature of my said 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 or arrange a rotary pump or exhauster
in such a manner that the liquid is caused to pass along semicircular barrels in which
two elongated yet rotating pistons work which pistons are coupled by gear on their
respective axles.
My invention will be clearly understood by reference to the annexed drawings in
which Figure 1 is a part sectional elevation, Figure 2 a transverse section and Figure 3
a plan view of my rotary pump.
.
Above each of the elongated pistons a, a, which rotate in barrels b, b, are drop
pauls c whose free end has a depending loose fitting knuckle plate d which adjusts
itself to the curvature of the clongated pistons a, a, and being always in contact
preserves the separation of the two portions of the barrel casing b, b, for the. proper
passage of the liquid. The knuckle plates d, d, also sweeps solid matter such as Hops,
grain and other material from the surface of the elongated pistons a, a, and thus
prevent the barrels 6b, main casing or barrel e, e, or the working parts becoming
ohoked.
.
The two drop pauls c, c, are mounted on the same axle pin fand their journals g, g¹
are so shaped that each has its own movement for work.
The axles of the elongated pistons a, a, are carried through the cover of the barrel e
on each side in suitable stuffing boxes as shown.
The action of the pistons is such that each end-as elongations-presses upon and
pockets a volume of liquid or fluid and pushes it around within the semicircular
barrel b, b, and by the time said end is retiring from action the other end comes round
and presses upon the quantity of liquid which has become pocketed in the receiving
part, and so on the other piston acts in the same manner but takes its motion
alternately, thus the two pistons keep up a constant flow.
The important feature in this invention is the adjustable knuckle plates, slides or
sweepers dd, the drop pauls c c and their combination with the elongated pistons a, a.
Figure 4 of the annexed drawings is an end elevation showing the gear wheels h, h,
and pinions i, i for working the elongated pistons a, a.
In order that the pump may be started without delay I keep it full of water for
this purpose.
I make the bedj hollow to serve as a tank, this being in communication
by the throat with a reservoir l, the height of which corresponds to that of the pump
barrel e.
Said reservoir has a pipe m reaching nearly to the top of it and in
connection with the source of supply by the branch n.

page_text: Each elongated piston a, a, is preferably driven from distinct cylinders p, q, acting
from cranks of shafts by which the two drive pinions i, i, are carried, the gear
wheels h, h, being connected so that the two elongated pistons a, a, shall rotate
uniformly and so equalize the action of the two pistons which shall prevent the engines
racing if one gets a greater supply of steam than the other. I lead the spent or
exhaust steam from the cylinders p, q, to the crown of the reservoir 7 by the pipes r, s
for condensation purposes, said condensation creating a partial vacuum and thereby
assisting the action of the pumps in lifting water up the central tube m.
t, t, are the two end covers of the pump barrel which when bolted in place are in
loose contact with the ends of the elongated pistons a, a, also with the ends of the drop
pawls c, and of the knuckle plates or blocks d, d, the touch being such that although
they have a rotation in contact they provent the passage of water between them. The
uptake or suction pipe u of the pump barrel b, e, is preferably of the shape shown in
Figures 1 and 2 to ensure a full supply of liquor to the barrels and the liquid is drawn
into the barrel by the rotation of the elongated pistons & it is lifted to the upper part
to flow away at the outlet v Figure 5 is a perspective view of one of the elongated
pistons a with spindle w attached.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I claim is
1. The two rotating pistons a, a working in semicircular portions b, b of a large
cylinder e said pistons being pressed upon by loose fitting knuckle plates d, d carried
by drop pauls c, c, all as and for the purpose described.
2. The rotary pump shown on the accompanying drawings in which by the use of
two elongated pistons a continued stream of fluid can be lifted and forced out of the
main pump cylinder the movable parts being fitted as above described.
The 31st day of March 1887.
H. GARDNER,
166, Fleet Street, London,
Agent for the said S. Mellor.
H. GARDNER,
166, Fleet Street, London,
Agent for the said S. Mellor.