Apparatus for Indicating and Registering the Weight of Gases
Year: 1895

page_text: Date of Application, 1st May, 1895
Complete Specification Left, 3rd Feb, 1896-Accepted, 1st May 1896
PROVISIONAI SPECIFICATION
Apparatus for Indicating and Registering the Weight of Gases
I, MAX ARNDT of Monheimsallee, Aix-la-Chapelle, Germany, Engineer, do
hereby declare the nature of this invention to be as follows
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The apparitus of this invention consists in combination of any suitable
Oscillating or swinging part of any suitable gas balance with a body suspended
from said oscillating or swinging part in such a way that the suspended body 18
from time to time pressed by any suitable motive power against a drum upon
which is fixed a sheet of paper and which drum is caused to revolve by means of
clockwork mechanism or by other suitable means the varying weight of the gas
being indicated by the suspended body marking the paper at different heights
according to the fluctuations of the gas balance The markings upon the paper
may be made by the suspended body through a dyed or tinted sheet protected
against perforation or tearing by a thin india iubber covering sheet
The suspended body may be actuated from time to time to mark upon the paper
of the revolving drum by an electrical appliance, or an air pressure apparatus, or
by clockwork or other suitable means
In the use of an electric appliance a plate 15, when an electio magnet receives a
current in a known mannei caused by the attraction of an armature to press
against the suspended body, and when the electric circuit is broken the suspended
body falls away from the drum
In the use of an air pressure apparatus the air 16 admitted intermittently to a
piston casing so as to press a plate at the end of the piston rod intermittently against
the uspended body the piston being returned to its end position by means of a
spring carried on the piston 1od between the cas ng end and the piston
The suspended bodi may also be operated by means of a spring lever taking by
a lug into notches formed at intervals in a disc driven by any suitable motive
power
Dated this 1st day of May 1895
CAPITAINE & VON HERTLING,
89 Chancery Lane, London, WC, Agents for the Applicant
I, MAX ARNDT of Monheimsallee, Aix-la-Chapelle, Germany, 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
This invention has for object the continuous indication and registration of
fluctuations in the weight of gases, and its chief feature is the arrangement of any
suitable swinging body which is in connection with, and moved by the oscillations
of any suitable gas balance, and from time to time pressed through a push piece
against a registering drum so as to impress upon this latter marks corresponding
Price 8d 1

page_text: to the position at the time, of the gas balance weighing parts, or to the weight
of the gas indicated at the time by the balance through a pointer
In the accompanying drawing
Fig 1 is a sectional elevation of the apparatus of the invention
Fig 2 a similar view of a somewhat modified form thereof
Fig 3 is a diagrammatic view on an enlarged scale of another construction of
a portion of the registering mechanism
a is the casing of the gas balance the balance beam ca weighing body
suspended in the air space e da weighing body suspended in the gas vesself which
latter receives the gas to be weighed q bowls or trays for the reception of small
weights h to balance the beam so that the pointer z may be caused to stand at
zero are plugs foi apertures in the casing a, said apertures permitting access to
the apparatus for the purpose of balancing the beam k is a nozzle through which
air 18 drawn into the air space e m the indicating scale or graduated plate of
the balance n an orifice through which the gases mixed with an escape in the
direction of arrow 2 n an orifice of the gas vesself through which the weighed
gases pass out of said vessel an orifice through which the gases to be weighed
flow in the direction of arrows 1 into the gas vessel
s the knife edge of the beam
The gas vessel is so constructed with the parts f f f³, that the gases to be
weighed entering at orifice pass out through orifice after flowing equably
through the gas vessel in the nection of ariows 1 and 2 and surrounding the
weighing body d suspended in the gases The air in small quantity is continuously
drawn in through the nozzle h, passing through the air space e in the direction of
arrows 3 and 5 The gases pa sing through the gas vessel f which are of greater
specific gravity than air, dive the closed weighing bodies c, d the latter upwards
and the former downwards and when the body d is carried to the left of the knife
edges the pointer z will be moved from the right to the left over the indicating
scale m
When lighter gases are being weighed such movements take place in
the reverse direction The beam is so balanced by means of the small weights h
that the pointer points to zero when the gas vessel f contains air The lower
part of said vessel may be filled with a sieve like stuff, wadding for instance, for
the purpose of equably distributing the gases entering through orifice r¹ and
preventing the weighing body d from being blown upwards
A is an armature which is attracted by the electro magnet or electro magnets V
towards the registering sheet B said armature being attached to, or co inected
with, the push piece D which presses the swinging body S against the registering
drum T, carrying the sheet B, in front of which may be arranged a sheet H
provided with colour or saturated with ink on the like and to prevent injury to
this sheet by tearing or punctures a thin sheet of india rubber F1 (Fig 4) may bu
arranged between the coloured marking sheet F and the swinging body S
sheet B may either be drawn over the drum T rotated by a clock work or other
suitable mechanism or may be so transported by said drum as to wind from one
roller to another in a known manner The colouring sheet F may be operated in
a similar way
The
In Fig 1 the complete registering mechanism is located in a special casing G
outside the casing a of the gas balance The two casings are in communication
through the passage C in which the suspen on rod carrying the swinging body S
may play
The push piece D by its armature A is diawn towards the magnet
when this receives current in a known manner, and pushed back again by the spring I
when the electric circuit is broken
In Fig 2 the registering drum is carried ou a base plate V fixed air tignt to
the bottom of the gas balance casing but so as to be readily detachable therefrom
for the purpose of withdrawing the rotary drum, winding up the clockwork, and
replacing the sheet marked upon with a fresh registering sheet Here the electro
magnets M, or it may be, only one electro magnet are or is arranged inside, or as
shewn, outside the gas balance casing a The armature A is in connection with
the push piece D through the spir dle L which passes through the attachment W,

page_text: therefore when the magnets M receive current the armature A is attracted, the
push piece D pressed against the swinging body S, and this in turn against the
registering sheet B through the coloured sheet F, thus registering the position of
the weighing parts of the gas balance
It
Fig 3 shews a mechanical arrangement for operating the push piece D
consists of a disc R turning on a pin H said disc being furnished with one or more
notches V D is a two armed push piece turning on a pin K fitted in the frame E
and is formed on its lower arm with a tooth N which is from time to time drawn by
a spring into the notch V whereupon the upper arm of the push piece strikes the
Swinging body S against the registering dium so as to make a mark upon this
latter, the swinging body being again set free when, upon the rotation of the disc R
the tooth N is slid out of the notch V
Fig 4 shews the same arrangement of the registering drum T as in Fig 2 only
in this case the push piece D is actuated through a pressure medium, compressed
au for example, which being caused to pass at intervals through orifice presses
upon the piston P of cylinder O The rod L connects the push piece with the
piston which after being released from the pressure is brought back to its original
state of rest position by the spring I when the swinging body S is free to oscillate
or swing
Finally Fig 5 shews the same electro magnetic registering arrangement as Fig 2
only the electric apparatus is located within and the registering drum outside the
gas balance casing a, the side of the casing a between the drum T and the swinging
body S being apertured and the aperture closed by a yielding plate or sheet 4, say
of india rubber which on the side coming in front of the registering drum is coated
with colour or with a stuff capable of giving off colour or is furnished with a suitable
chemically prepared blue or other marking paper so that in the registering or
recording operation the plate or sheet Zyields where it is pressed against by
the swinging body S which for the purpose of marking may be provided with a style
or stud
The registering or recording mechanism may also be employed in conjunction
with other kinds of gas weighing appliances and the same may be located
either outside or inside or partly outside and partly inside the casing a of the
balance
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
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An apparatus for indicating and registering or recording the weight of gases,
in which any suitably formed swinging body S is in connection with any suitable
oscillating part of a gas balance said swinging body being freely suspended between
the registering sheet B and any suitably formed and operated push piece D and
through this latter pressed at intervals by any suitable means against the
registering sheet B thereby registering or recording marks corresponding to the
position at the time, of the working parts of the balance or to the weight of
the gas indicated at the time by the balance, and whereby the swinging body S
may be arranged to mark automatically direct, or otherwise arranged for
registering purposes, or between the same and the registering sheet B may be
arranged a sheet F saturated or prepared with ink or colour for marking, and
also for the protection of the sheet F against tearing or perforation a thin sheet F¹
of india rubber or the like, substantially as described and shewn
CAPITAINE & Vov HERTLING,
89 Chancery Lane, London, WC, Agents for the Applicant