IMPROVEMENTS IN PUMPS OR APPARATUS FOR DRAWING AND MEASURING LIQUIDS
Year: 1881

page_text: PROVISIONAL SPECIFICATION left by Edward Woolf at the Office of
the Commissioners of Patents on the 28th June 1881. A communication
from abroad by George Woolf, of Saint-Louis, State of Missouri, in the United
States of America, Merchant.
EDWARD WOOLF, of New Bond Street, in the County of Middlesex, Merchant
and Manufacturer. "IMPROVEMENTS IN PUMPS OR APPARATUS FOR DRAWING
AND MEASURING LIQUIDS." A communication from abroad by George Woolf,
of Saint-Louis, State of Missouri, in the United States of America, Merchant.
This Invention relates to improvements in pumps or apparatus for drawing
and measuring liquids, and is designed to draw off all the liquid from a barrel or
other vessel, and to correctly measure the same, thus dispensing with the use of
measures, funnels, and tapping devices.
For this purpose the Invention consists, first, in the novel construction of pump;
secondly, in the combination therewith of registering apparatus ; and thirdly, in the
peculiar construction of an extensible spout adapted to connect the discharge pipo
of the pump with various heights of cans, bottles, or other receptacles, as hereinafter
described.
In carrying my Invention into effect, the pump is provided with a tray furnished
in front with an arched support which fits over the curve of the barrel, and at back
with a set screw, by means of which it is fixed to the barrel, and adjusted to a
horizontal position. This tray is lined with slicet metal, and in it are placed the
vessels to receive the liquid. A vertical tube fixed at the rear end of the tray,
and passing through and below the same for a considerable distance, enters the
bung hole of the barrel, and between this tube and the tray is an orifice by which
the drippings or overflow are led back to the barrel through a vertical channel or
groove formed on the periphery of the pump barrel or cylinder. Into this vertical
tube the pump-cylinder is inserted and fits snugly; it is furnished at its lower end
with points which enter the bottom of the barrel, and thus retain, in conjunction
with the tube, the pump cylinder in an erect position.
The pump is constructed as follows:-It is provided at its lower end with an
orifice or orifices, over which an inwardly opening disc valve is fitted and operates;
this valve is furnished with a stem which protrudes through the lower end of the
pump cylinder and carries a head; around this stem and between the head and
end of the cylinder is a spiral spring tending to hold the valve down to close the
openings.

page_text: The piston of the pump is composed of an elastic ring, held between two plates,
and furnished with openings over which a disc valve is fitted. This valve opens
downwards by reason of a spiral spring surrounding the piston rod. This piston
rod passes through the closed end of the pump cylinder, and is jointed to a connecting
rod which is connected with a crank on a shaft provided with a crank arm for turning
same. This shaft passes through a bearing formed in an arm which is mounted on
the pump cylinder. On this arm is a graduated dial, behind which is a ratchet
wheel, which carries on the outside of the dial a hand or pointer capable of travelling
over the face of the said dial. This ratchot is placed in such proximity to
the shaft that a tappet on the shaft strikes the ratchet wheel, and moves it one
tooth at every revolution of the shaft or complete stroke of the piston.
The capacity of the pump cylinder and the stroke of the piston being relatively
proportioned to discharge a given quantity, a gill for instance, tho number of
revolutions and the number of gills discharged will be registered by the movement
of the hand or pointer over the dial face, which is marked off in gills, pints, and
quarts, or other quantities.
In order to dispense with the funnel ordinarily employed, and to direct the
dischargo of the liquid directly into the receptacle which is to receive it, the
discharge spout of the pump is carried to an elevated point, and is provided with
several telescopic sections, the lowest one of which is formed with a flange which
fits over the mouth of the receptacle into which the liquid is to be discharged; this
section is also provided with a small neck, which enters the receptacle and prevents
spilling.