A Method of and Apparatus for Obtaining Motive Power.
Year: 1890

page_text: Date of Application, 11th Feb., 1890-Accepted, 15th Mar., 1890
COMPLETE SPECIFICATION.
A Method of and Apparatus for Obtaining Motive Power.
I, FRANZ KUBA, Manufacturer, of Hernals, near Vienna in the Empire of Austria
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 an automatic apparatus or duplex pump for obtaining.
motive power and to an improved method of working the same.
By the construction and use of this improved automatic apparatus or double pump
a regular and cheap working power is obtained in places where there is no natural
head of water.
The accompanying drawing illustrates the invention.
Fig. 1 is a side view of the whole arrangement,
Fig. 2 a front view,
Fig. 3 a plan view.
and
The arrangement consists substantially of water wheels one lying above the other,
the upper and smaller one A of which is meant to work both the pumps E, E by
conveying the water from the collecting basin or reservoir beneath, through the
pipes C, C to the upper water reservoir N and eventually direct to the crosspipes 0, 0,
whence it flows on to the float-boards of the wheel A, sets this and thereby the pumps
in motion and then from the smaller wheel A flows on to the larger water wheel B:
which is the real driving wheel and sets it in motion.
This driving wheel can be set at right angles to the pump wheel A so as to allow a
larger number of pumps to work upon it.
Å is an ordinary, over-shot water wheel with closed float boards L, the axle V¨¨
bearing on the supports T, T¹ of the uprights, and the diagonal stays M being joined:
in the usual manner at one end with the rim of the wheel and at the other with the
hub. At each end of the axle V there is a crank K, K¹. The cranks are connected i
by a pin joint with pump; rods D,, D¹, which end in forks d, and by these and the
guide bars G they are connected with their piston. rods F. The cranks are so; set that..
when one is in its highest position the other is in its lowest, consequently, the one:
pump piston will have reached the low end of its cylinder when the other has
reached the high end of its cylinder. The pumps E, E' are ordinary suction pumps,
whose inlet valves c, c¹ lie under the surface of the water. The water, at each up
stroke of the pistons b enters the cylinders through the valves C, C₁ and, at each down
stroke, passes through the flap valves a, a', in the pistons and is then lifted to the
cistern N. which it fills. From the cistern' the water reaches the pump wheel A
through the valve W and pipes O, 0¹.
The working of the arrangement is as follows:
It
The cistern is filled, by means of a natural inflow or by hand pumps or by:
buckets with water which on the valve W being opened by means of the lever
handle W' reaches the wheel A by means of the pipes O, O' and outflow gutter P,
fills the closed float boards L of the wheel and so causes the wheel A to revolve.
is advantageous in beginning working to fill the ascending pipes with water, as
otherwise the reservoir would have to be of very large dimensions. By means of the
cranks K, K' fixed to the axle V, the pump rods D, D' and the pump pistons are set!
in motion and water constantly supplied to the reservoir N for the further driving of
the pump wheel. The water flowing off from this wheel is then led by the
gutter S to the real driving. wheel. B from the axle of which the further power
connections take place. The pump arrangement can also be utilised without the
driving wheel B, for instance for irrigation and similar agricultural purposes for
filling water cisterns or reservoirs at distant places etc.

page_text: As
The conveying height of the pumps is taken at 13 metres whereof 5 metres are
calculated for the pump wheel, 7 metres for the power conveying driving wheel and
1 metre as a margin of safety. With a pump piston of a diameter of 60 cm.
and 50 cm. length of stroke the pump delivers 141.37 Ltr. per stroke. With a
diameter of the ascending pipe of 30 cm. there is contained in the 13 mtr. high pipes
a quantity of water amounting to 918 Ltr. which must be raised at each stroke.
the diameter of the pump wheel is 5 mtr. and the length of stroke 50 cm. the power
transferred by the pumped up water to the cranks is 10 fold. There is thus at every
stroke 918 Kl. to be raised and a power of 1413 Kl. + 485 is overcome by the cranks.
It would accordingly require 3 such double pumps of the diameter indicated to
correspond to 30 horse power. But if the diameter of the piston is increased to
80 cm. each stroke, with a height of stroke of 50 cm. delivers 251.32 Ltr. water, so
that 2 double pumps would suffice to correspond to 3 horse power: With this
diameter of piston the diameter of the ascending pipes is 40 cm. and the contents of
the 13 mtr. high pipes consequently equal 1633 Ltr. By the 10 fold transference of
the raised water a power of 2513 Ko. is attained, and as 1633 Ko. must be raised
there remains +880 Ko. by which the friction of about 25% is more than
cancelled.
In order to enable the apparatus to be set automatically at work a hydraulic lever
or ram should be fixed at the end of the gutter which is arranged under the pump
_wheel for collecting the water, which, without damaging the power of the wheel,
conveys the water through an ascending pipe to a reservoir arranged above the
outflow, and when this is full the superfluous water runs through a second pipe back
again to the wheel.
By the tap R which is placed at the end of the off-flow pipe Q the working of
the pump is regulated and by opening the tap entirely, as the water' then flows off
through the pipe instead of on to the wheel, the pump is brought to a standstill while
by closing the tap and letting the water from the reservoir fall on the wheel is is
again set agoing.
A series of 10) such water wheels which occupy a space of about 350-400 square
mtr. and a height of 15 mtr. and produce a power of about 300-500 h.p. require
only the service of a single man who has to see that the bearings are well
`lubricated.
The whole plant when once set working, can remain active day and night, and the
power could be hired out during the day for industrial purposes and used during the
night for electric lighting.
Further advantages are the much cheaper cost of fitting up as compared with steam
power, as well as the absence of any danger of explosion and troublesome smoke and
soot.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is :-
The improved automatic apparatus or duplex pump and method of its working, the
apparatus consisting of the pump wheel A, the axle V of which, by means of the
cranks K, K' and pump rods D, D¹, sets the pistons of the pump cylinder E, E¹ at
work, whereby water is raised in the ascending pipes C, C and through these the
cistern N, placed above the pump wheel, is filled, whence the water reaches the pump
wheel, sets this going and then sets the driving wheel under the pump wheel in
motion or the water raised in the pipes C, (can, without using a cistern be
brought directly from the pipes through the cross pipes O, O' to the pump wheel A,
substantially as hereinbefore described with reference to the annexed drawing.
Dated this 10th day of February 1890
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Applicant's Agent.