Improvements in Liquid Level Indicators.
Year: 1896

page_text: Date of Application, 5th Aug.. 1896
Complete Specification Left. 15th Apr., 1897-Accepted, 15th May, 1897
AD
Improvements in Liquid Level Indicators..
I, JULIUS DRACH, of II, Czerningasse 25, Vienna, Austria, Engineer, do hereby
declare the nature of this invention to be as follows:-
My invention relates to improvements in liquid level gauges and has for its
object to indicate the level of any liquid contained in a vessel, reservoir or
like and consists of a horizontally positioned shaft, which by the rise and fall of
a float and the said shaft communicates its movement to an index finger.
The float characterizes itself through special construction and the communication
with the index finger being indirect and being keyed to a separate shaft which is
geared up by means of bevel wheels to the shaft which moves the index finger,
so that the float may be arranged at any angle to the latter shaft.
The said horizontal shaft is arranged in a tube the latter being in three parts
formed with flanges and bolted together, the one end of the tube forms the case
for the dial and fingers, whilst one part is threaded for the purpose of securing
it to the vessel or reservoir and the other end has secured thereto a semi-
circular shaped box in which are arranged the bevel wheels, the said box having
a screw-off cover.
The horizontal shaft at its index end is mounted in a plate carried by the tube
end and has secured thereto a toothed segment whilst the other end projects
into the said box and has a bush with conical end ground into a packing ring
fixed in the tube, 'to the said bush is secured a bevel wheel, which is geared up
with another bevel wheel, fixed on a cross shaft mounted in the box. The latter
is formed with an extension at its inner side split longitudinally and formed with
lugs for the purpose of bolting it to the tube end. On one end of the said cross
shaft is keyed an arm which carries the float at its free end, the latter through
its rise communicating its movement by means of the bevel wheels to the
horizontal shaft and by the toothed segment to a pinion on the index finger.
The indicator may be arranged at any distance below the horizontal shaft by
keying on to the shaft end in lieu of the toothed segment an arm, which is
connected to another arm keyed to the segment shaft.
The float used in this apparatus consists of a hollow body and is fitted with a
pipe one end reaching nearly to its bottom and the other end projecting
therefrom.
According to this arrangement the pressure inside the float will be always the
same as outside and the liquid which may flow into the pipe will rise very little
above the level of the inner end as the further flow of liquid into the float is
prevented by the inner pressure.
The pressure thus being equalized the float need not be specially constructed to
withstand the pressure as heretofore.
Dated this 1th day of August 1896.
F. BOSSHARDI & Co.,
Agents to Applicant.

page_text: Improvements in Liquid Level Indicators.
1. JULIUS DRACH, of II, Czerningasse 25, Vienna, Austria, Engineer, 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:
My invention relates to improvements in indicators for ascertaining the level of
any liquid contained in a vessel, reservoir or the like and consists chiefly of a
horizontally positioned shaft, which is rotated by the rise and fall of a float and
communicates its movement to an index finger.
The said float is of a special construction and its communication with the index
finger is indirect the float being attached to a separate shaft geared up by means
of bevel wheels to the shaft which moves the index finger, so that the float may
be arranged at any angle to the latter shaft.
And in order that my invention may be more fully understood I have caused
to be appended hereunto one sheet of drawings marked with letters of reference
indicating like parts in the various figures, Fig. 1 being a side view partly in section,
Fig. 2 à plan partly in section, Fig. 3 a front view of the dial of the indicator,
Fig.
4 a front view of a modification of my invention.
In carrying out my invention and referring to Figs. 1, 2 & 3, the aforesaid
horizontal shaft c is arranged in a tube formed in three parts C, C, C with
flanges and bolted together, the part forming a case for the reception of
the dial D' and the finger gear c, d, whilst the part C is threaded for the purpose
of securing it to the vessel or reservoir and has secured thereto a semi-circular
shaped box B in which are arranged the bevel wheels hereinafter referred to, the
said box having a split neck B' and cover B2 adapted to be screwed off.
The end of the horizontal shaft c which projects into the casing C³ is mounted
in a plate carried by the tube end or casing 03 and has secured thereto a
toothed segment whilst the other end which projects into the box B has a bush c
with conical end ground into a packing ring fixed in the tube C. To the
bush is secured a bevel wheel in gear with another bevel wheel 62 fixed on.
a cross shaft b¹ mounted in the box B. The neck B is formed longitudinally]
with slits 63, 63 and with lugs 6, 6 for the purpose of securing it by means of
the bolts to the tube C. On one end of the cross shaft b' is keyed an arm b
which at its free end carries the float A which rises or falls as the liquid level
changes and communicates its movement to the cross shaft b', by means of the
bevel wheels & c to the horizontal shaft c and by the toothed segments
a pinion d on the index finger D.
to
Referring to Fig. 4 the indicator or dial D' may be arranged at any desired
distance below the horizontal shaft c by keying on to the latter in lieu of the toothed
segment 2, an arm f connected by means of the rod 2 to another arm attached to
the segment c².
The float A consists of a hollow body in which is fitted a pipe a the lower end of
which reaches nearly to the bottom of the float and the other end projecting
therefrom.
According to this arrangement the pressure inside and outside the float will be
always the same and the liquid which may flow into the pipe can rise very little above
the level of its inner end as the further flow of liquid into the float is prevented by
its internal pressure.
The pressure thus being equalized the float need not be specially constructed to
withstand the pressure as heretofore.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim, is-
1st. In an apparatus for indicating the level of liquid in vessels, the float A keyed
upon a shaft 6 arranged separately from the shaft c which actuates the index finger,
which shafts are geared up by means of bevel wheels 63, c', which permit of fixing the
shaft c at any desired angle to the float A, all substantially as set forth.
2nd. In an indicator constructed as specified in the preceding claim, the
employment of the bevel wheels b & c in a box B having a removable cover B
and a split neck B₁ which box is clamped tight upon the shaft tube C3, C4, C,
all substantially as set forth.
3rd. In an indicator, constructed as specified in Claim 1, the employment of
a float A consisting chiefly of a hollow body in which is fitted a pipe a the upper
end of which projects from the said body and the inner end of which reaches nearly
to the bottom thereof, all substantially as set forth.
Dated this 14th day of April 1897.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.