Improvements relating to Whistles.
Year: 1898

page_text: I, RICHARD ALBERT WALTON, of The Universal Whistle Works, 14, Hunters
Road, Hockley, in the City of Birmingham, Manufacturer, do hereby declare the
nature of this invention to be as follows:-
-
This invention consists of improvements relating to whistles such as are
employed by policemen and others for signal and like purposes, my object being
to arrange the internal parts or mechanism in a more simple and effective manner
than heretofore.
In the application of my invention to the construction of an ordinary police
whistle of the tubular or cylindrical type, having an internal disc or diaphragm
and a vertical division plate or slab, I attach the said disc or diaphragm directly
to the division plate or slab. The connection between the parts is formed by the
provision of a central socket or trough on the disc or diaphragm part for the
reception of the upper end of the division plate or slab. After placing the end
of the plate or slab within the disc socket or trough, I force the portions of metal.
forming the sides of such socket or trough tightly upon the slab and thus effec-
tually clamp or secure the two parts together.
The combined disc and slab I then place in position within the body of the
whistle and fix the same by soldering along the longitudinal edges of the slab in
the ordinary manner.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., &
13, Temple Street, Birmingham.
Agents for the Applicant.
Improvements relating to Whistles.
I, RICHARD ALBERT WALTON, of The Universal Whistle Works, 14, Hunters
Road, Hockley, in the City of Birmingham, Manufacturer, do hereby declare the.
nature of my said 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 consists of improvements relating to whistles such as are
employed by policemen and others for signal and like purposes, my object being
to arrange the internal parts or mechanism in a more simple and effective manner
than heretofore.

page_text: fitted together.
Figure 7 is a sectional elevation of the body of a whistle with the diaphragm
and division plate fitted therein.
Figure 8 is a sectional view of the whistle as shewn at Figure 1.
Figure 9 shows a modified form of the internal disc or diaphragm fitted onto the
division plate.
Figure 10 is a plan view of the diaphragm as shewn at Figure 9.
Figures 11 and 12 show further modified forms of my disc or diaphragm.
In carrying my invention into practice as applied to the construction of an
ordinary police whistle A of the tubular or cylindrical type I attach the disc
or diaphragm B directly to the division plate or slab D. This disc or diaphragm
is connected to the division plate by inserting the end of the division plate into
the slot or socket 61 which slot or socket is formed by bending up the centre
portion of the metal blank forming the disc or diaphragm as clearly shewn at
Figures 2, 3 and 4. After the end of the plate D has been inserted into the slot
or socket 6 the portions of the metal forming the sides of the slot or socket are
forced or closed tightly upon the end of the division plate thus effectually clamping
or securing the two parts together as shewn at Figure 6.
The combined diaphragm and division plate are then placed in position within
the body a¹ of the whistle and fixed by soldering along the longitudinal edges of
the slab in the ordinary manner as clearly shewn at Figures 7 & 8. The top or
mouth piece a and the bottom piece a³ are afterwards fixed by soldering or
otherwise onto the end of the tube or body a¹ in the ordinary manner as shewn
at Figures 1 and 8 when the whistle is complete.
At Figures 9, 10 & 11 I have shewn a modified form of connecting the dia-
phragm B to the division plate D. In the method as shewn at Figures 9 and 10
I form the diaphragm in a somewhat similar manner as previously described but
in this case I taper the edges 63 of the centre portion 62 and leave the projections
or tits 64 on the sides or edges of the diaphragm as clearly shewn at Figure 10.
This diaphragm fits onto the end of the division plate in a similar manner as
above described. In the method as shewn at Figures 11 and 12 I form the
diaphragm from a casting or from the solid or from a metal blank as shewn at
Fig. 12 and in the centre portion or flange 65 I cut or form the slot 61 for the
reception of the upper end of the division plate. In some cases I may cut
middle portion of the part 65 as shewn in dotted lines Figure 11 so as to lighten
away the
the diaphragm. It will however be evident that the slot in the diaphragm

page_text: for the reception of the end of the division plate may be formed in a variety of
ways.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:-
CLAIMS.
First. The improvements relating to whistles consisting essentially in connect-
ing the diaphragm or disc to the division plate or slab and body by forming
a slot or trough in the diaphragm for the reception of the upper end of the division
plate or slab in the manner and for the purpose substantially as herein set forth
and as shewn upon the accompanying sheet of drawings.
Second. In whistles the subject of the above claim a diaphragm or disc with a
slotted flange or part or its equivalent for holding the division plate or slab D in
the body of the whistle in the manner and for the purpose substantially as herein
set forth and as shewn upon the drawings.
Third. In whistles forming a slot in the diaphragm or disc for receiving the
division plate or slab either by cutting bending or casting as and for the purpose
substantially as herein set forth and as shewn upon the drawings.
Dated this 26th day of January 1900
RICHARD ALBERT WALTON,
By George Barker,
Fellow of The Chartered Institute of Patent Agents,
Agent for Applicant, 77, Colmore Row, Birmingham.