Improved Adjustable Distributing Nozzles
Year: 1897

page_text: Improved Adjustable Distributing Nozzles:
ROBERT POLLOCK, Engineer, of the "Grahtryx" Ventilating & Engineering
Company, Limited, 23, Sutterton Street, Caledonian Road, London, N, do hereby
declare the nature of this invention to be as follows:-
Tinproved adjustable distributing nozzles. For the purposes of ventilation, forced
draught; & other things, by the distribution of compressed air; steam, or liquids,
whereby the force or power generated 'may be utilised with the greatest: economy.
To attain this purpose I construct two cylinders, one within the other, having an
annular space between said cylinders, but fixed together by studs in the centre, or at
one end, this annular space may be closed at one end, or not, as most suitable.
Projecting lips, or seats; are provided 'within the annular spaces between the two
cylinders, and a ring; or rings; is, or are inserted into the annular spaces with
perforated holes, or slots, in same; corresponding with perforated holes, or-slots, in
the lips or seats provided within the annular spaces, so that the ring when turned on the
seat, or lips, will cover, or partly cover the holes, or slots, in said seat, and the holes,
or slots, of ring will be covered, or partly covered, by the seats, or lips, in the annular
spaces. A projection is provided from these rings for the purposes of' turning same
on its seat, or act for a directing cone between the currents of the outer, and inner
cylinders.
Adjustable set screws, or pins holds the ring in position when turned, & set in
same.
At times I may only use one section of the nozzle, or I may use it without the
adjustable seats:
It may be constructed of gunmetal, brass, copper, iron, aluminium, bronze, or other
suitable material.
Dated this Twelfth day of November 1807
ROBERT POLLOCK, Engineer, of Grahtryx Ventilating & Engineering Co., Ltd.,
23, Sutterton Street, Caledonian Road, London, N., 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 :-
To be used for ventilation, forced draught, & other purposes by the distribution of
compressed air, steam, or liquids, whereby the force is utilized with the greatest
economy. To attain this purpose I construct two cylinders, one within the other,
[Price 8d

page_text: having an annular space between said cylinders, but fixed together in the centre, or
at one end; projecting seats or lips are provided within the annular spaces between
the cylinders, said seats having perforated holes or slots, a ring is placed between the
two cylinders to fit tight on the lips or seats having corresponding perforated holes
or slots so that when this ring is turned on the seats the holes of each are covered, or
partly covered by the other, and are fully described on the accompanying drawings.
Fig. is a sectional elevation, two cylinders A 1 Fig. 1 fastened together at one end,
thus forming the annular space A 2, having projecting lips or seats A 3, with per-
forated holes or slots B 3. A ring B 1 having corresponding holes or slots B2 rests on
the seats A 3 & is held down by means of the bridge B 4 and thumb screw B 8 entering
bridge B 5. It will be seen that by the slightest movement of the ring B 1
on the seat A 3 the holes or slots B 3 will be covered or partly covered by the ring Bl
& the holes or slots B 2 will be covered or partly covered by the seats A 3 so that by
a simple turn of the bridge B 4 the sizes of the holes B 3 and B 2 may be diminished
or entirely shut off, the screwed connection B 6 is the supply to the annular space A 2.
The V-shaped piece B7 is intended to split up the air induced by the nozzle &
reduce friction. Fig. 5 is a plan on the line B B Fig. 1. Fig. 6 is a plan of the ring BI
and bridge B4 Fig. 1. Fig. 3 is a plan on the line A A Fig. 1. Fig. 2 is the general
appearance of the nozzle when completed. Fig. 4 end view of B6 and B7 Fig. 1.
Fig. 7 is a modification by which the ring B1 Fig. 1 may be fixed & held in position
by the set screw F 3 pressing on the extended pieces H 2. The lines G 1 Fig. 7 are
dividing plates by which the currents of air or other matter issuing from the
slots B2 and B 3 are conducted separately for some distance. Fig. 8 & 9 are a
modification using only the outer cylinder A 1 Fig. 1 with a solid centre or disc in
place of the ring Fig. 6.
I do not bind myself to the precise particulars herein stated, they may be varied
so long as the adjustable rings & seats are maintained as the principle.
Having now particularly described & ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
First. A nozzle with adjustable rings & seats substantially as Fig. 1 on drawings
herewith.
Second. Nozzle with adjustable rings & seats substantially as Fig. 7.
Third. Nozzle with adiustable discs & seats substantially as Fir 8