Year: 1897

page_text: Date of Application, 8th Jan., 1897
Complete Specification Left, 8th Oct, 1897-Accepted, 20th Nov., 1897
I WILLIAM FRANKLIN WILMOTH of 3 Farringdon Avenue, Holborn Viaduct in the
City of London Engineer do hereby declare the nature of this Invention to be as
follows:-
My Invention relates to improvements in the construction of nozzles for use as
fire extinguishers and other purposes and has for its object to provide improved
means for readily varying, regulating, and stopping the flow of water therethrough,
without the necessity of cutting off the supply at the main.
According to my Invention I employ a nozzle which may be secured to the end
The said, nozzle is formed
of the hose, piping or the like, in the ordinary manner.
at its outer end with a circular hollow casting set eccentrically thereon, the said
casting being screw threaded externally for receiving a sleeve or ring provided
internally with corresponding screw threads and with an annular recess or groove on
its exterior onto which an outer cap piece or rim fits loosely being connected thereto
On the outer end of the
by screws or stops taking into the said annular recess.
cap piece or rim is a cross piece supporting a plug fixed or pivotted thereto which is
preferably conical and adapted to take into or hang over the end of the nozzle which
may be bevelled to receive the same. A spring bolt or catch projecting from the
aforesaid casting can take into one of two longitudinal slots formed in the interior
The
of the cap or rim so as to keep the plug in or out of position over the nozzle.
aforesaid crosspiece may also be provided if desired with a nozzle of a smaller
diameter than the pipe nozzle bevelled or tapered at its inner end so that by turning
the cap on the ring either the plug or the moveable nozzle may be brought over the
end of the pipe nozzle. A longitudinal adjustment is obtained by screwing
the sleeve or ring on the casting, so that when the plug is brought near the nozzle the
jet of water passing therethrough is properly spread and by screwing down the
plug home on the nozzle the flow is stopped. By bringing the moveable nozzle over
the aforesaid pipe nozzle and suitably adjusting the same a combined spray and jet
may be obtained, and by screwing down the nozzle on to its seat a solid jet of
reduced diameter is obtained, a larger jet resulting when the pipe nozzle is left free
from either the moveable nozzle or the plug.
In another arrangement according to my Invention I may dispense with the screw
ring and the corresponding screw thread on the casting, which latter may be of a
reduced depth, the cap piece or rim with its plug or plug and nozzle, being so fitted
onto the casting that it can be caused to revolve thereon for bringing the plug or
nozzle over the pipe nozzle and removing either therefrom as required, but in this case
there is no longitudinal or screw adjustment, the distance of the plug or nozzle
from the pipe nozzle always remaining the same.
When adapted for use as a lawn sprinkler the plug is preferably pivotted as
aforesaid on to an arched crosspiece mounted on the rim or casting situated

page_text: centrally over pipe nozzle, the said plug being suitably grooved or channelled so as
to cause the same to revolve rapidly when water proceeding from the nozzle strikes
against it, thereby securing a very efficient sprinkling of the water,
Dated this 8th day as
1007
I, WILLIAM FRANKLIN WILMOTH of 3 Farringdon Avenue, Holborn Viaduct, in the
City of London, 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 :-
My Invention relates to improvements in the construction of nozzles for use as
fire extinguishers and other purposes and has for its object to provide improved
means for readily varying regulating and stopping the flow of water therethrough
without the necessity of cutting off the supply at the main.
Refering to the accompanying drawings
Figure 1 shews in vertical section one form of nozzle constructed according to this
invention.
Figures 2 and 3 being plans of the same shewing the cap piece in different
positions.
Figures 4 and 5 shew in vertical section and plan respectively another form of
nozzle according to this invention, and
Figure 6 shews a third modification of nozzle adapted for use as a lawn
sprinkler.
The nozzle A shewn in Figures 1 to 3 is formed at its outer end with a circular
hollow casting B set eccentrically thereon, the said casting being screw-threaded
externally at 6 for receiving a sleeve or ring C provided internally with corresponding
screw threads c and with an annular recess or groove c² on its exterior on to which
fits loosely an outer cap piece or rim D connected thereto by screws or stops d
taking into the said annular recess c². On the outer end of the cap piece or
rim D is a cross piece d2 supporting a conical plug d³ fixed thereon and adapted to
take into the end a of the nozzle A which is bevelled to receive the same. The
cross piece may also be provided with a nozzle d of a smaller diameter than the
pipe nozzle a and bevelled or tapered at its lower end d³. A spring bolt or catch b¹
projecting from the casting B can take into one of three longitudinal slots c³, c+,
or c5 formed in the cap or rim D so as to readily retain either the plug d³ or the
nozzle d in position over the nozzle a or both clear thereof when the cap is so turned
on the casting. A longitudinal adjustment is obtained by screwing the sleeve or
rim C on the casting B so that when the plug d' is brought over the nozzle a
the water passing therethrough is properly spread while by screwing the cap piece
down the angle of the spray is altered and when the plug comes home on the
seat of the nozzle a the flow of water is stopped.
.
:
By bringing the nozzle d over the aforesaid pipe nozzle a and suitably adjusting
the same vertically as aforesaid a combined spray and jet is obtained and by
screwing down the nozzle home on the seat a of the pipe nozzle a solid jet of
reduced diameter is obtained, a larger jet resulting when the pipe nozzle a is
left free from either the nozzle d or the plug d³ as shown in Figure 3.
In the arrangement shewn in Figures 4 and 5 the screw ring is dispensed with
and the corresponding screw thread on the casting B, which is consequently of a

page_text: reduced depth. The cap piece or rim D is constructed as aforesaid with a cross
piece d² conical plug 3 and nozzle d', but the nozzle in this case may be vertically
adjustable by screwing into the cross piece as shewn in Fig. 4. The cap piece with
its plug and nozzle can be turned on the casting for bringing the plug or nozzle over
the pipe nozzle, screws & retaining the same thereon while a spring bolt or catch b¹
can take into one of three slots c³ c or c for retaining the said cap piece in the
required positions. In this case there is no longitudinal adjustment between the
casting and the cap piece but this may be obtained by making the nozzle and plug
or either vertically adjustable in the cross piece.
The arrangement in Figure 6 shews a nozzle adapted for a lawn sprinkler. The
plug d³ is mounted loosely on a pivot do fast on the cross piece d² extending from
the casting A so as to be situated centrally over the pipe nozzle a, the said plug
being suitably grooved or chanuelled as shewn at d7 so as to cause the same to revolve
rapidly when water proceeding from the nozzle strikes against it, thereby securing a
very efficient sprinkling of the water.
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:
1. The improved means for obtaining longitudinal or vertical adjustment or
movement of an over-hanging nozzle or plug or both in nozzles of the kind described,
substantially as set forth.
2. The several arrangements of, and improvements in nozzles substantially as
herein before described and illustrated in Figures 1, 2 and 3, Figures 4 and 5 and in
Figure 6 of the accompanying drawings.
Dated this 8th day of October 1897
JOHNSONS & WILLCOX,
47 Lincoln's Inn Fields, London, W.C., Agents.