A New or Improved Differential Motor.
Year: 1889

page_text: Date of Application, 14th Aug., 1889
Complete Specification Left, 19th Apr., 1890-Accepted, 24th May, 1890
PROVISIONAL SPECIFICATION.
A New or Improved Differential Motor.
I, ERNST WORTMANN of Arcis Strasse No. 14 Munich, in the Empire of Germany,
Engineer, do hereby declare the nature of this invention to be as follows:-
The object of this invention is a differential motor having the characteristic
feature of being actuated by a liquid caused to pass in a circuit through the
apparatus.
The construction of the new device is essentially as follows:
Near the base of a vertical frame is provided a suitable vessel having at the bottom a
stuffing box through which passes an upwardly extending vertical shaft so secured at
top and bottom as to be only capable of revolution about its axis. A suction pipe
enclosing the lower portion of said shaft, carries at some distance from its bottom end
a suitable pulley rigidly fixed thereon and communicates at the top with a cylindric
receptacle, the cover of which is hermetically fitted therewith and also with the
vertical shaft, said receptacle being divided into four equal compartments and laterally
connected with four corresponding, upwardly extending pressure pipes. Supposing
the bottom end of the suction pipe is immersed in a liquid and, jointly with the
receptacle or centrifugal box, filled with liquid, said box revolves, on the suction
pipe being set in rotation through the pulley referred to, and, by centrifugal force,
thrusts the liquid through the pressure pipes into a horizontal water wheel loosely
provided at the top of the vertical shaft and so held by a suitable guiding and ball
bearing as to allow of its revolution about the shaft, while its weight is carried by the
vertical supports of the apparatus. Through the suction tube, the supply of liquid to
the centrifugal box is continned as otherwise a vacuum would be produced in the latter.
The liquid passes through the cells of the water wheel into a suitably placed upper
vessel. A ring having cells rigidly secured on the latter, serves to neutralize any
remaining rotary tendency of the liquid when leaving the water wheel.
The upwardly elongated nave of the water wheel carries a pulley for transmitting
the power received by the same.
In the upper vessel terminates a descent pipe, through which the liquid passes into
a turbine attached to the lower vessel and hence into the latter.
The force produced by the said turbine is utilized by being transmitted by means of
pulleys to an auxiliary vertical shaft and hence to the suction pipe, that is to to
say,
the centrifugal contrivance, the movement of the latter being moreover assisted
by the water-wheel, also connected by means of its pulley with the auxiliary
shaft. The number of revolutions of the centrifugal device depends on the relative
size and disposition of the pulleys mentioned, and the excess of force produced is
transmitted and utilized in any convenient manner.
Dated this 14th day of Angust 1889
HUELSER & Co.,
Attorneys.
COMPLETE SPECIFICATION.
A New or Improved Differential Motor.
I, ERNST WORTMANN of Arcis Strasse No. 14, Munich in the Empire of 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 relates to differential motors and has for its purpose to provide a

page_text: motor of this description, in which, as a characteristic feature, the motive force is
represented by a liquid which is caused to circulate through the apparatus.
Referring to the accompanying drawing in which like letters denote like or similar
parts throughout the figures."
Fig. I is a front view and partial section.
Fig. II is a side view and partial section, and
Figs. III to V represent dotails of the improved differential motor.
On the base plate F, Fig. I to IV is supported by posts a a vessel G the bottom of
which is provided with a stuffing box, through which passes the vertically lodged
shaft to.
The latter is so held at top and bottom as to allow it to revolve about its
longitudinal axis only. Tlie pulley a is wedged on the pipe r. The cover d of the
circular vessel c is secured air-tight on the shaft was well as also on the vessel itself.
The latter is divided by four stationary wings into four compartments and its bottom
terminates in pipe * Fig. I and VI.
This vessel moreover carries four pipes i.
Supposing the suction pipe is dipped into a liquid, for instance water, and the
vossel c as well as the suction pipe filled with water, the vessel c, on the suction
piper being rotated through pulley a, revolves and throws, by centrifugal force, the
water through the pressure pipes into the water wheel W situated loose near the
top of the vertical shaft to and so held through the upper frame by means of a
ball bearing as to allow of its revolution about the shaft w, the weight of the water
wheel being carried by the posts s. Simultaneously the water, as otherwise an air-
free space would be produced in the vessel c, passes from the bottom vessel G
through suction piper continually into the vessel c.
It follows that, with a corresponding rotation of the throwing or centrifugal
vessel c, the water passes from out of the lower vessel G through suction piper into
the centrifugal vessel c, through the pressure pipes into the water wheel W, and
through the cells thereof into the upper vessel g. The cross stays & serve to hold
the pressure pipes i to prevent their being thrown off through centrifugal force and
cause them to participate in the revolution of the pipe r and consequently of the.
shaft 1.
The ring rigidly lodged round the water wheel on the upper vessel is provided
with cells Figs. I and V, by means of which any rotary movement of the water,
which might still continue when leaving the cells of the water wheel is completely
neutralized. The water is therefore compelled to flow back into the upper vessel g.
On the elongated nave of the water wheel W is secured the pulley m for transmitting
the power received by the water wheel.
The
upper vessel
is fitted with a descent pipe v through which the water
runs off into the turbine T, consequently imparts to the latter a corresponding
force; subsequently it penetrates through the turbine again into the lower
vessel G.
Supposing the force of turbine T is transmitted by pulleys g and o to the auxiliary
shaft y, the latter being connected by pulleys band a with the centrifugal box C, the
latter and consequently also the water wheel W, will revolve when the turbine T
revolves, and, as the force of the water wheel is transmitted through pulleys m and n
to the auxiliary shaft y, the water wheel also supports the revolution of the centri-
fugal vessel.
The shaft w, and thereby the centrifugal vessel, makes by the relative size and
number of the pulleys, supposed, in the drawing, to he employed twice as many
revolutions as the auxiliary shaft y. e Fig. III denotes a flow-over pipe.
The frame serve to guide the suction pipe r by means of ball bearings, to give
the posts a support and to hold the auxiliary shaft y and also the shaft w at the top
end. The pulley is destined to transmit the excess of force produced, for any
suitable application.
The pressure pipes i, in order to neutralize the loss of power produced by the
rotation of the centrifugal box through atmospheric resistance, are surrounded
with a sheet metal mantle, which is omitted in the drawing.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
A differential motor, in which the liquid employed performs a circuit or cycle and
which principally consists of a centrifugal vessel c with suction piper and pressure
pipes connected with shaft w, a water wheel W and an upper vessel g with descent
pipe in combination with a turbine T and a lower vessel G, the whole combined and
operating substantially as set forth.
ו.
1000
ERNST WORTMANN.
By Huelser & Co.,
142, Fleet Street, London, Attorneys.