IMPROVEMENTS IN APPARATUS FOR RAISING FLUIDS
Year: 1877

page_text: LETTERS PATENT to Gerard Wenzeslaus von Nawrocki, of the Firm of J.
Brandt and G. W. v. Nawrocki, of Berlin, in the German Empire, Engineers
and Patent Agents, for the Invention of "IMPROVEMENTS IN APPARATUS FOR
RAISING FLUIDS."-A communication from the Firm of Papperitz and Aver-
kamp, of Berlin aforesaid.
Sealed the 10th July 1877, and dated the 19th January 1877.
PROVISIONAL SPECIFICATION left by the said Gerard Wenzeslaus von
Nawrocki at the Office of the Commissioners of Patents on the 19th January
1877.
GERARD WENZESLAUS VON NAWROCKI, of the Firm of J. Brandt and G. W. v.
Nawrocki, of Berlin, in the German Empire, Engineers and Patent Agents.
" IM-
PROVEMENTS IN APPARATUS FOR RAISING FLUIDS." A communication from the Firm
of Papperitz and Averkamp, of Berlin aforesaid.
These improvements refer to apparatus actuated by direct steam pressure in an
intermittent manner. The part of the apparatus which may be called the pump
proper has two separate chambers, which at their lower part communicate by
passages with the suction valve boxes. Above the latter are arranged the delivery
valves, and the air vessel with the delivery pipe. The aforesaid pump chambers
are tapered towards the top, and over their two adjoining upper narrow openings is
placed a double valve which works or rocks on central pivots, and balances on an edge
of a very obtuse angle. The steam which actuates the apparatus enters by a steam
pipe at the top of the pump part proper, and depresses that side of the double valve
which at the time is raised; that side of the valve being thus smartly forced down
a blow is delivered from or against the body of water, or compressed air or enclosed
vapours in the pump chamber beneath the valve. There is a passage leading from
the air vessel to a small chamber fitted with a kind of regulating tap, whereby
communication can be more or less established with two ports leading to two
injection roses which deliver water for causing a powerful suction. Access is had
to the suction and delivery valve by means of a cover on the side of the valve box.
The chambers being deep and narrow at the top only a small surface of water is
exposed to the direct contact with the steam, while the stroke or variation in the
[Price 6d1

page_text: water level is comparatively great. Air suction is not necessary for the regular
working of this apparatus.
The action of the apparatus is similar to that of other pumping apparatus worked
intermittently by the direct pressure of steam on the water or other fluid to be
raised.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Gerard Wenzeslaus von Nawrocki in the Great Seal Patent Office on
the 19th July 1877.
$6
GERARD WENZESLAUS VON NAWROCKI, of the Firm of J. Brandt and G. W. v.
Nawrocki, of Berlin, in the German Empire, Engineers and Patent Agents.
IM-
PROVEMENTS IN APPARATUS FOR RAISING FLUIDS." (A communication from the
Firm of Papperitz and Averkamp, of Berlin aforesaid.)
These improvements refer to apparatus actuated by direct steam pressure in an
intermittent manner. The part of the apparatus which may be called the pump
proper has two separate chambers, which at their lower part communicate by
passages with the suction valve boxes. Above the latter are arranged the delivery
valves, and the air vessel with the delivery pipe. The aforesaid pump chambers
are tapered towards the top, and over their two adjoining upper narrow openings is
placed a double valve which works on rocks on central pivots, and balances on an
edge of a very obtuse angle. The steam which actuates the apparatus enters by a
steam pipe at the top of the pump part proper, and depresses that side of the double
valve which at the time is raised; that side of the valve being thus smartly forced
down a blow is delivered from or against the body of water, or compressed air or
enclosed vapours in the pump chamber beneath the valve. There is a (passage
leading from the air vessel to a small chamber fitted with a kind of regulating tap,
whereby communication can be more or less established with two ports leading to
two injection roses which deliver water for causing a powerful suction. Access is
had to the suction and delivery valves by means of a cover on the side of the
valve box.
The chambers being deep and narrow at the top only a small surface of water is
exposed to the direct contact with the steam, while the stroke or variation in the
water level is comparatively great. Air suction is not necessary for the regular
working of this apparatus.
The action of the apparatus is similar to that of other pumping apparatus worked
intermittently by the direct pressure of steam on the water or other fluid to be
raised.
On the accompanying Drawings Figure 1, Sheet 1, is a vertical central section
through the line A, B, Fig. 6, Sheet 2; Figure 2, a vertical section through the line
C, D, Fig. 6, Sheet 2; Figure 3, a plan section through the line E, F, Fig. 6;
Figure 4, a horizontal section through line L, M, Fig. 6; Figure 5 is a side elevation;
Figure 6, a vertical longitudinal section; Figure 7, a plan; and Figure 8, a plan
section through line J, K, Fig. 6.
A and A° are the two chambers, and B and B° are passages at their lower part
communicating with the boxes or spaces above the suction valves C and C°; D and
Do are the delivery valves; and E, the air vessel above the same; G is the delivery
pipe. The pump chambers A and A° taper towards the top, as shown at Fig. 2,
terminating in narrow adjoining openings H, and H°, over which is placed a valve J
rocking on pivots, see Figs. 2 and 6, and balancing on a central edge formed by two
surfaces meeting under a very obtuse angle. There is a passage leading from the air
vessel E to a small chamber Ñ fitted with a tap M, which serves to regulate the com-
munication by the passages L, L°, between the air vessel E and two injection roses
0,0°, which deliver into the two pump chambers A, A°. The steam enters the
apparatus from the pipe K, and depresses the valve J on that side of it which

page_text: at the time is in a raised position; a blow is thus delivered on the under side of
the thus closed side of the valve by the body of water or compressed air or enclosed
vapours. P is a cover which can easily be removed, and thus admit access to all
the valves.
In the arrangement described it is to be noticed that the fluid surface in contact
with the steam is only small, while the stroke or rise of the fluid level is compara-
tively great. By the adjustable injection which delivers the corresponding quantity
of water automatically, according to the steam consumption, a timely and powerful
suction is produced. The suction of air is not at all necessary for the regular
working of this apparatus.
And having thus described the nature of this Invention, I declare that I
claim,―
Firstly. The double-rocking valve J with narrow openings H, H°, as and for the
purpose set forth.
Secondly. The passages L, L°, in combination with the adjusting cock M, as and
for the purpose set forth.
Thirdly. The injection orifices 0, 0°, in combination with chambers A, A°, and
passage L, Lo, as and for the purpose set forth.
Fourthly. The cover P with cock M, and arranged as described.
In witness whereof, I, the said Gerard Wenzeslaus von Nawrocki, have here-
unto set my hand and seal, this Fourteenth day of July, in the year of
our Lord One thousand eight hundred and seventy-seven.
GERARD WENZESLAUS v NAWROCKI
(Tα)
GERARD WENZESLAUS v NAWROCKI
NAWROCKI (LS.)