An Improved Indicating Device for Use in Oil Lamps and other Liquid Containing Receptacles.
Year: 1895

page_text: Date of Application, 22nd May, 1895
Complete Specification Left, 28th June, 1895-Accepted, 24th Aug., 1895
PROVISIONAL SPECIFICATION.
An Improved Indicating Device for Use in Oil Lamps and other
Liquid Containing Receptacles.
We, JOHN HILLERY COLLINGS, of Wansbeck Villa, Grange Park Road
Leyton, in the County of Essex, Draughtsman and WILLIAM ERNEST CAPNER
PINCHBECK of 6 Priory Villas, Sydenham, in the County of Surrey, Manufacturer
do hereby declare the nature of this invention to be as follows:-
Our invention relates to an improved liquid measuring device chiefly designed
for use in oil lamps, but is also applicable to other liquid containing receptacles,
whereby we are enabled to ascertain at a glance the quantity of liquid contained
therein or the quantity to be placed in said receptacle.
According to our invention we arrange within the reservoir of the lamp, or any
other suitable vessel, a piece of metal bent at the upper and lower ends in any
convenient manner, at the bottom of which is, formed an eye piece, or any other
suitable device for receiving the indicating rod, which is made of wire or similar
material. On the upper surface of said piece of metal we arrange a dial or any
other suitable device upon which is marked suitable particulars, according to what
use our invention is applied.
Upon the face of the aforesaid mentioned dial is mounted a small hand or pointer
which is connected in any convenient manner preferably by a small pin or stud,
to a narrow strip of sheet metal in which is formed a slot for the indicating rod
to slide.
We solder or otherwise fasten to the upper and lower portions of the said piece
of metal a straight strip of wire upon which is mounted a piece of cork or any
other light buoyant. material or metal air float, in which is fixed an eye piece which
acts as a guide to the indicating rod, so that when the liquid is poured into the
vessel the buoyant material rises and causes the indicating rod to slide in the
slotted piece of metal thereby forcing the pointer round the dial and at once
indicates when the vessel is full or when a given quantity of liquid has been poured
therein..
Of course we do not confine ourselves to the particular form above described, as
we can. adapt other means without departing from the nature of our invention.
For instance we solder or otherwise fasten within the reservoir, a hollow tubular,
or any other convenient shaped, slotted piece of metal within which is arranged a
strip of square metal twisted in any suitable manner preferably to the shape of
Archmedian drill and upon which is mounted the metal air float or other
light buoyant device. On said float we fix in any desired position a small pin
which slides in the slot of the hollow piece of metal so as to prevent the float
from turning round when the oil or other liquid is poured into the reservoir.
an
"
Upon the top of the hollow piece of metal is fixed the dial and the hand or
pointer of which is connected with the said square twisted strip of metal in any
convenient manner but in this case it must be understood that the square twisted
strip of metal must not be fixed, but allowed to revolve, so that when the oil or
other liquid is poured into the reservoir the float rises and through the medium of
a small disc of metal which is made to slide freely up and down the twist on the
square twisted strip of metal, causes same to revolve which accordingly acts upon
the pointer:

page_text: By the use of our improvements several advantages are obtained, overfilling of
the lamp is impossible, a large saving of oil or other fluid is effected, and it being
a much cleaner method than the means at present in use.
Dated the 20th day of May 1895.
JOHN HILLERY COLLINGS.
WILLIAM ERNEST CAPNER PINCHBECK.
An Improved Indicating Device for Use in Oil Lamps and other
Liquid Containing Receptacles.
We, JOHN HILLERY COLLINGS of Wausbeck Villa, Grange Park Road
Leyton in the County of Essex, Draughtsman, and WILLIAM ERNEST CAPNER
PINCHBECK of 6 Priory Villas, Sydenham in the County of Surrey, Manufacturer
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 :-
Our invention relates to an improved liquid measuring device, chiefly designed
for use in oil lamps, but is also applicable to other liquid containing receptacles,
whereby any person may ascertain at a glance the quantity of liquid contained
therein, or the quantity required to be poured in to raise the level to a predetermined
height.
In order that our invention may be the better understood, we have appended the
accompanying sheets of drawings, in which the several figures are, for purposes of
clearness, drawn to an enlarged scale.
Figure 1 Sheet 1 is a top plan view of one form of the device, and Figure 2 is a
sectional elevation thereof.
On Sheet 2 Figure 1 is a plan view of a modification, and Figure 2 is a
longitudinal section thereof.
Figure 3 is a transverse section upon the line A. B. on Figure 2.
Figures 4, 5, and 6 are respectively similar transverse sections upon the
lines 1-2-3-4-5-6.
Similar letters of reference are used where practicable to indicate corresponding
parts in the several views.
In carrying our invention into effect, we may construct the device so as to form
part of a funnel, and therefore applicable to any liquid containing vessel, but
distinct therefrom, or we may construct it as an integral part of such vessel.
A tube E, Figures 1 & 2 Sheet 1 with or without a funnel C, is immersed in the
vessel, the liquid level of which is to be ascertained. A cork or other float J freely
moves, upon a vertical guide o and carries an eyelet p enclosing a free rod / which
is angularly disposed relatively to the vertical guide rod o. Said rod is pivotted at
the lower end to the perforated base of the tube I, and is free to move in a lateral
slot m at the upper end, which projects beyond the surface of the cover D. An
index or pointer iis freely pivotted on said cover D, and is provided with a
slotted extension n in which the free end of may slide. When the float rises,
the rod is pressed outwards, and the index is moved over the scale marked
on D, indicating the liquid level accurately. We may modify this arrangement
by substituting a wire frame for the tube E and connecting the several parts
thereto.
But in other cases we use a modification of this device, as shown by the
appended drawings. In this case we
construct a tube E with a slot formed
longitudinally b, in which slides a tongued guide pin c attached to, or forming.
part of a plate H fixed to a float J, which may be of any solid substance or
material of a low specific gravity, or may be a hollow float, hermetically sealed.

page_text: A strip of square metal F, twisted to form helices, or any equivalent helice or
Archimedian screw, is mounted upon a spindles on a footstep bearing as the
lower bearing, and passing through the plate D as the upper bearing. The
plate H, fixed to the float J has a central orifice arranged to act as a nut to
the helices or helix on F, and, since it cannot revolve by reason of the retention of
the tongue c in the slot b, any access of liquid level raising the float J, causes F to
revolve through such part of a revolution as is determined by the pitch of the
helix or helices. An index or pointer fixed to the spindle s, and operating over a
quadrant scale on D correctly records the liquid level aforesaid. The guide and
stop plate G is slotted or cut away as shown by Figure 4, (which is a transverse
section on 1-2 Figure 2) for the purpose of allowing the liquid poured into the
funnel C to freely enter the receptacle to which the invention is adapted
The lower plate I is also slotted for the same purpose as shown by Figure 6,
which is a transverse section upon the line 5-6 Figure 2. The float J, within the
tube E, and the plate H with the tongue piece c is shown by the plan view
Figure 5, which is a transverse section upon the line 3-4, Figure 2. The dial D
with its index or pointer i upon the spindle s is shown by the plan view Figure 3,
which is a transverse section upon the line A B Figure 2. A general plan view is
shown by Figure 1.
We wish it to be understood that we may adapt the device as a filler, combined
with a funnel C, distinct from a lamp or other liquid receptacle and merely used in
connection therewith during the operation of filling, after which it may be removed,
or it may be permanently fitted to any type of lamp or liquid receptacle, with or
without a funnel C. In the latter case the orifice a would be fitted with a screwed
plug or equivalent device, and would constitute the filling orifice of the lamp or
liquid receptacle.
We do not confine ourselves to the precise design herein set forth, but may
modify the construction of the device in order to fulfil the requirements of various
conditions of adaptation without departing from the essential features of our said
invention.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is;
First. In an indicating device for oil lamps and other liquid receptacles, the
combination of an index, indicating rod, float and slotted guide, substantially
as herein described with reference to Figures 1 and 2 Sheet 1.
Second. In an indicating device for oil lamps and other liquid receptacles the
combination of a float J, nut plate H and helix F, with an index i and scale D
substantially as herein described with reference to the drawings upon Sheet 2.
Third. In an indicating device for oil lamps and other liquid receptacles, the
combination of the parts referred to in the preceding claims, with a tube É and
funnel C, as a measuring instrument not attached to a reservoir or receptacle,
substantially as herein described with reference to the appended drawings.
Fourth. In an indicating device for oil lamps and other liquid receptacles the
combination of a helical shaft, nut float and index with a reservoir or receptacle
containing liquid substantially as herein described.
Dated this 10th
CT 1007
FRED. WALKER,
73 St. Stephen's Road, Upton Park, London, E.,
Agent for the Applicants.
FRED. WALKER,
73 St. Stephen's Road, Upton Park, London, E.,
Agent for the Applicants.