An Improved Pump for Lamp Filling and similar Purposes.
Year: 1895

page_text: Date of Application, 20th Aug., 1895 Accepted; 21st Sept., 1895
COMPLETE SPECIFICATION.
An Improved Pump for Lamp Filling and similar Purposes.
A communication from WILLIAM TYREE,.of 71, Cathedral Square, Christchurch,
in the Provincial District of Canterbury, in the Colony of New Zealand,
Inventor.
i, ALFRED JULIUS BOULT, of 323 High Holborn, in the County of Middlesex,
Chartered Patent Agent, 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:
This invention relates to that class of pumps which are sometimes employed
for withdrawing kerosene and other oils from tins or other containers when filling
lamps.
Hitherto such pumps have usually been constructed with an ordinary recipro-
cating plunger rod which has had to be lifted by. hand after each downward
stroke, and as one hand is generally occupied in holding the lamp the operation
has been attended with some difficulty.
Now this invention provides a pump wherein the plunger is operated auto-
matically on its upward stroke, thus making it much easier of manipulation.
Other improvements have also been devised which will be clearly understood
from the following description and by the aid of the accompanying drawings
wherein :-
Fig. 1 is a side elevation, and
Fig. 2 a vertical central section of the improved pump and
Fig. 3 a side elevation and plan of the pump bucket.
Similar letters of reference indicate the same parts in all the figures.
The pump barrel (a) preferably made of thin metal tubing is provided with a
bucket (6) fitted with a ball (c) which acts as a valve. The bucket is formed, as
shown in Figs. 2 and 3 by attaching a perforated washer or disc (d) to each end of
a short piece of tube (e) the discs serving to keep in position the material used for
packing, the bottom disc forming a seat for the ball valve (c) the lift of which is
fimited by the bent portion of the plunger rod (f) which is bent to nearly a
right-angle at its lower end and secured by soldering or analogous means to the
bucket (b).
A spiral spring (g) is secured at one end by soldering, or other suitable means;
to the plunger rod (f) and rests upon the bridle (4) which is secured within the
pump barrel, and, through which the plunger rod passes.
A cover (i) is provided at the top of the barrel (a) and a ball or other suitable
foot valve (1) is furnished at the bottoni.
The pump
is provided with a spout (k) through which the oil is withdrawn, and
which is curved as shown in the drawings so that drippings of oil may run back
into the barrel.
In operation when removing the contents of an ordinary kerosene container,
a hole is punched in the top of the tin sufficiently large to admit the pump barrel
which is passed through it, the bottom of the barrel resting on the foot of the tin.
To operate the pump it is only necessary to depress the plunger rod (f) as it is
returned after each stroke by the spring (9).
The spring (9) is shown arranged inside the pump barrel, but it is obvious that
it might be placed outside of the pump between the button (n) and the cover (i) or

page_text: beneath the pump bucket resting on the foot valve bracket (1) or in any convenient
position where it would serve the desired object of automatically returning the
plunger rod after it has been depressed by hand.
י
Having now particularly described and ascertained the nature of the said inven-
tion, as communicated to me by my foreign correspondent and in what manner the
same is to be performed,. I declare that what I claim is :
1. The improved pump consisting of the combination and arrangement of parts
substantially as and for the purposes herein described and illustrated: in: the
accompanying drawings.
2. In pumps the combination with the plunger rod of a spiral spring arranged to
operate such plunger rod in an upward direction substantially as specified and
illustrated.
3. A pump bucket consisting of two perforated discs secured at either end of a
short piece of tube as and for the purposes herein described and illustrated.
Dated this 9th day of July 1895.
BOULT & WADE,
Agents for the Applicant.
BOULT & WADE,
Agents for the Applicant.