Year: 1897

page_text: Date of Application, 15th May, 1897-Accepted, 19th June, 1897
I, AUGUST GÜNTHER of 4, Margarethenstrasse, Halle a/S, Chief Fireman, 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 a nozzle for hose pipe such as is employed by fire
brigades. The nozzle may obviously also be employed for pumps for watering
gardens and similar purposes. The essential feature of the nozzle consists in that
it contains in itself the device by means of which the volume or thickness of the
water jet can be regulated. Heretofore it was only possible to regulate the
thickness or volume of the jet by means of the water tap to which the hose was
screwed. In that way, when it was desired to make any alteration in the volume
or thickness of the jet it was necessary each time to go to the hydrant and to
produce the desired volume or thickness of jet, by trial. For a single person this
was very inconvenient because the said person had to carry the nozzle and also a
great length of hose back to the hydrant in order to find out the correct volume or
thickness of jet by correspondingly turning the valve or tap lever, or to ascertain
at the valve whether the proper volume or thickness of jet had been produced or
not by the adjustment of the said valve.
In the new nozzle according to this invention the user can remain at the place
where he happens to be and whilst he holds the nozzle in one hand he can operate
with the other hand the device for varying the volume or thickness of the jet.
The accompanying drawing illustrates two similar longitudinal sections through the
nozzle showing the latter in different positions.
g
a is the supply pipe connected to the nozzle which is formed at its front end with
a screw thread 6 and a cone c. The cone is held by the screw threaded part b by
means of the ribs e., and the water can otherwise flow past the same along its
entire periphery. d is an outlet hood through which the water issues and which is
mounted by means of a corresponding female thread on the screw b. This outlet
hood is provided a little farther back with a second female thread fin which is
screwed a stop 9 which prevents the hood d from being screwed too far forward
away from the screw threaded union piece b. is a collar fixed on band which
forms, as it were, a jointing piston against any escape of the water at the rear side
of the nozzle. At the front of the piston h there may be provided a soft packing
ring which when the nozzle is quite closed bears tightly against the surface k of
the hood, and thus completely prevents escape of the water to the rear.
As shown
in Figure 1, the nozzle is completely closed by turning back the hood d until its
jointing surface k. bears against the front part cl of the cone c. By turning the
hocd d in the opposite direction, the nozzle can be opened, and the user is
enabled to move the hood d forward at will until the jet issues of the desired
volume or thickness.
Figure 2 shows the nozzle in its wide open position. It may further be
mentioned that the essential feature of this invention consists of the cone c c¹ and
of the hood which is capable of moving axially with relation to said cone. The
longitudinal movement may be effected by other means than by the screw thread ;
also the constructional parts hig are not absolutely necessary components of the
nozzle. Further there is no absolute necessity to move the hood d relatively to

page_text: the cone c c¹. The construction may be such in which the hood is stationary,
whilst the closing cone c¹ is shifted axially.
Having now particularly described and ascertained the nature of my said inveu-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
(1.) A nozzle characterised by the fact that at the forward end of the supply
pipe a there is arranged a hood d and a cone c', which constructional parts are
capable of being shifted axially with relation to each other, in such a manner as to
allow of the outflow of the water to be regulated as desired, within certain limits,
by means of the hood'd as set forth.
(2.) A nozzle constructed, arranged and adapted to be operated substantially as
herein before described and shown.
Dated this 15th day of May 1897.
ROBERT E. PHILLIPS, Assoc. M. Inst. C.E., M.I. Mech. E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Associate Agent.