Improvements in Coin-freed Machines for Testing the Strength of the Lungs.
Year: 1899

page_text: Date of Application, 14th Dec., 1899
Complete Specification Left, 13th Sept., 1900-Accepted, 17th Nov., 1900
ate of Application, 1901 Dec., 1099
Complete Specification Left, 13th Sept., 1900-Accepted, 17th Nov., 1900
PROVISIONAL SPECIFICATION.
Improvements in Coin-freed Machines for Testing the Strength of the
Lungs.
I, CARL OTTOMAR PAUL, of 10, Radebergerstrasse, Loschwitz, near Dresden,
in the German Empire, Merchant, do hereby declare the nature of this invention
to be as follows:
This invention relates to machines for testing the strength of the lungs of a
person blowing into such a machine the mechanism being set free to act by
the insertion of a coin.
Such machines consist generally of a cylinder in which moves a piston the
rise of which is indicated on a vertical scale by a hand connected to the piston
by a cord passing over rollers. My improvements consist essentially in the
arrangement and construction of a ball valve to which is connected the tube
through which the breath is forced from the lungs of the person using the
machine and in mechanism relating thereto.
A ball resting normally on the bottom of the valve chamber is adapted to rise
in and close an upper orifice of the latter. Above the valve chamber is situated
a balance, an arm of which, directed downwards, enters in such orifice of the
valve chamber.
A crank lever is pivotted to the machine and its lower end is provided with a
plate which is situated opposite to a pocket arranged on the balance and adapted
for the reception of the coin. The other end of the crank lever rests on a weight,
attached to the indicator cord and carrying the indicator. The usual shoot is
arranged above the balance through which the inserted coin passes on to the
balance.
When air is blown through the tube before the insertion of a coin the ball of
the valve is raised but cannot bear against the upper seating on account of the
arm of the balance entering through the orifice. Therefore, the air which enters
escapes, to the outside atmosphere, between the valve seating and the ball.
However when a coin is inserted, it passes through the shoot on to the balance
and the latter turns, so that its arm leaves the upper orifice of the valve. In
this case when air is blown through the tube the ball rises until it bears against
the upper valve seating and closes such orifice. Thus the air is blown to beneath
the piston which begins to ascend. At the same time the weight connected to
the piston by a cord leaves the end of the crank lever which is directed sideways.
In consequence the downward arm of the crank lever is moved, the plate thereof
removed from the balance and the coin is allowed to fall. When no more air is
blown in, the ball falls and the balance returns into its former position, the excess
of air escaping through the pipe and the piston returning into the normal
position.
Dated this 14th day of December 1899
FELL & JAMES,
Agents for the Applicant.

page_text: Improvements in Coin-freed Machines for Testing the Strength of the
Lungs.
I, CARL OTTOMAR PAUL, of 10, Radebergerstrasse, Loschwitz, near Dresden,
in the German Empire, Merchant, 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 machines for testing the strength of the lungs of a
person blowing into such a machine, the mechanism being set free to act by
the insertion of a coin, and consists in the arrangement and construction of a
ball valve therein and mechanism for controlling the same.
In order that this invention may be the better understood, I now proceed to
describe the same with reference to the accompanying drawings and to the
letters and figures marked thereon. Like letters refer to like parts in the various
figures.
Figure 1 shows a vertical section of the machine.
Figure 2 shows the device for setting free the machine by the insertion of a
coin.
Figure 3 shows a detail.
The machine has the usual form of a cylinder x in which a piston b is adapted
to move up and down. Such movements of the piston b, caused by blowing air
or breath into the machine, are indicated by a hand or pointer e on a vertical
scale, the pointer e being connected to the piston 6 by a cord e guided over
rollers .
The ball valve is connected to a tube 7 through which the breath is forced
into the cylinder a.
A ball resting normally on the bottom of a valve chamber f is adapted to
rise in and close an upper orifice of the latter. A balance k is situated above
the valve chamber and has an arm i directed downwards which enters the upper
orifice of the valve chamber f when the apparatus is at rest, and prevents the
closing of such orifice until a coin has been inserted.
A crank lever 7 is pivotted to the machine. An arm m of such crank lever
is directed downwards, and the end thereof is provided with a plate m¹ opposite
to a pocket arranged on the balance and designed for the reception of a coin;
see Figure 3, which is a side view of the crank lever 7. The end of the other
arm of the crank lever rests on a weight n attached to the cord c and provided
with the hand or pointer e. A shoot o is provided as usual to guide the inserted
coin down on to the balance.
When the breath is blown through the tube before the insertion of a coin,
the ball is raised but cannot bear against the upper orifice of the valve
chamber f, the arm being situated therein as aforesaid, see Figure 1. There-
fore, the breath which enters escapes to the outer atmosphere through the space
between the ball h and the valve seating, and the piston remains at rest.
However, when a coin is inserted: it passes through the shoot o on to the balance k
and the latter moves so that the armi leaves the upper orifice of the valve
chamber f. see Figure 2. When breath is now blown into the machine, the
hall rises until it closes the upper orifice of the valve chamber f. Thus the
breath is forced to below the piston and the latter commences to rise. Simul-
taneously the weight connected to the piston by the cord leaves the arm
of the crank lever 7 which is directed sideways. Consequently the arm m of the
Jever . which is directed downwards, makes a movement which removes the

page_text: plate m¹ from the balance and thus allows the coin p to fall down, see Figure 2.
When breath is no longer blown into the machine, the ball h falls to the bottom
of the valve chamber and the balance returns into its former position. The
breath or air escapes through the tube g and the piston 6 returns into its former
position.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I declare that what I
claim is:-
1st. A coin freed machine for testing the strength of lungs, having a valve
chamber with an orifice in the upper part thereof, a ball h adapted to close the
latter, and a balance with an arm i situated in the valve orifice when the
machine is at rest, in order to prevent the lifting of the ball h and consequent
closing of the valve orifice by blowing breath or air into the machine, and to
allow of such closing of the valve orifice by the insertion of a coin, causing the
balance to turn and the arm i to leave the valve orifice, substantially as
described.
2nd. A form of construction of the machine claimed in Claim 1, in which a
coin falling on the balance k, and operating it so as to allow of the closing of
the valve orifice, is retained by the end m¹ of the downward arm m of a crank
lever whose sideways directed arm rests on a scale pointer n e-until a piston b
raised by the influx of the breath or air blown under it, causes the pointer to
descend, whereby the arm m is turned and the coin p allowed to drop, sub-
stantially as described.
Dated this 13th day of September 1900.
FELL & JAMES,
Agents for the Applicant.