An Improved Pump.
Year: 1891

page_text: Date of Application, 15th Dec., 1891--Accepted, 13th Feb., 1892
An Improved Pump.
We, NICHOLAS SMITH, Inventor, and CATHERINE SMITH, (no occupation)
both of Logansport, Indiana, U.S.A., do hereby declare the nature of this inven-
tion, and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
This invention relates to certain new and useful improvements in lift-pumps of
that class designed to be used for the purpose of emptying barrels, casks, and the
like, and it has for its object to provide a simple, cheap, and efficient device of this
character wherein the valve shall occupy as little space as possible, and offer a
minimum of resistance to the passage of the fluid. We dispense with ball-valves
heretofore employed in this class of pumps, and which soon become worn, so as
not to fully close the opening.
Other objects and advantages of the invention will appear in the following
description, and the novel features thereof will be particularly pointed out in
the claim.
The invention is clearly illustrated in the accompanying drawings which
with the letters of reference marked thereon form a part of this Specification,
and in which―
Fig. 1 is a central longitudinal section of a pump constructed in accordance with
my invention, and
Fig. 2 is an enlarged perspective view of the plunger and its valve removed.
Like letters refer to like parts in both the figures of the drawings.
Referring now to the details of the drawings by letter A designates the barrel
or cylinder provided with discharge-spout A', and at its upper end with a remoy-
able cap A having an aperture for the passage of the plunger-rod B, as shown in
Fig. 1.
The lower end of the cylinder or barrel A is connected in any suitable
manner to the base-piece B¹ which has depending side flanges designed to rest
upon the bottom of the barrel or cask, and is provided with a space beneath the
top of the base-piece for the inflow of the liquid, it being understood that there is
an unobstructed passage from end to end between the side flanges b, as shown in
the drawings Fig. 1. The lower end of the cylinder at one side is extended, as
shown at a, to provide a space a¹ between the same and the upper face of the
base-piece B, and in which space is located an extension of the flap-valve C being
secured by the vertical securing means, as the rivet e, which secures said extension
to the base-piece, as clearly illustrated in Fig. 1, the said flap-valve being designed
to snugly fit and close the opening d in the top of the base-piece coincident with
the bottom of the barrel or cylinder A.. A sufficient play is provided and space
allowed above the flap-valve near its connection with the cylinder and the base-
piece to permit it to assume the position shown by dotted lines when the plunger
is raised. The plunger-rod B is connected at its lower end in any suitable manner
to a valve-support D, the upper end of which is arranged centrally within the
cylinder A, and the body of which is inclined toward the wall of the cylinder, and
upon its inner face is provided with an aperture e, as shown best in Fig. 2, for the
reception of the knuckle which is formed on a plate E which is secured to the
upper face of the valve F. The valve F is through the medium of this plate and
knuckle hinged or pivotally connected with the valve-support D by means of the
wire 9, which is substantially triangular in form with its base portion passed through
the knuckle and on which the said valve turns with ease.
The valve-support D may be formed in any suitable manner, but I prefer
to make it of sheet metal bent into the form shown for lightness and strength
combined.

page_text: In the downward
The operation is simple, and will be readily understood.
movement of the plunger the valve I assumes a vertical position, as indicated by
dotted lines in Fig. 1, offering but little resistance to the downward movement.
The flap-valve operates in the usual manner, as illustrated in Fig. 1.
I have pro-
duced satisfactory results without the employment of the flap-valve.
Having now particularly described and ascertained the nature of this our said
invention, and in what manner the same is to be performed, we declare that what
we claim is :
The combination, with the cylinder and the centrally-arranged plunger-rod, of
the sheet-metal support D, bent around the lower end of the rod, the valve F, the
plate E, secured to the upper face of the valve and formed with a knuckle working
in an aperture in the lower end of the support, and triangular wire
having its
horizontal portion passed loosely through the bore of the knuckle, and its ends
secured to the support B, substantially as and for the purpose specified.
Dated this 15th day of December 1891.
W. H. MUNNS,
Applicants' Agent.