Year: 1898

page_text: A communication from SILENETTE PROPRIETARY, LIMITED, of 424, Little Collins
Street, Melbourne, in the Colony of Victoria.
I, ARTHUR FREEMORE SPOONER, of 323, High Holborn, in the County of London,
Chartered Patent Agent, do hereby declare the nature of this invention to be as
follows:-
This invention relates to an introducer or injecting appliance which has been
designed mainly for use in introducing pharmaceutical or chemical powders,
ointments or liquids into any of the canals of the human body for curative or
surgical purposes although it may be used for analogous purposes.
The apparatus consists of a parallel open ended glass tube having a piston or
pusher arranged to work to and fro a limited distance within it, the fore end of
the glass tube is left completely open, whilst the back end has a threaded metallic
ferrule cemented on it to receive a screw cap. A central hole is provided in the
said screw cap to receive a glass rod the inner portion of which has a solid glass
piston on it whilst the outer part is furnished with a beaded stop which just
allows the piston to travel to flush with the end of the glass tube and again beyond
the said stop is a hand piece. Also on the glass rod within the tube a beaded stop
is provided which may either be made upon the rod or be separate and screwed
thereon in order to allow its position to be adjusted to hold the quantity which is
to be introduced.
A communication from SILENETTE PROPRIETARY, LIMITED, of 424, Little Collins
Street, Melbourne, in the Colony of Victoria.
I, ARTHUR FREEMORE SPOONER, of 323, High Holborn, in the County of London,
Chartered Patent Agent, do hereby declare the nature of this invention and in
what manner the same is to be performed; to be particularly described and ascer-
tained in and by the following statement:-
This invention relates to a powder introducing appliance which has been.
designed mainly for use in introducing pharmaceutical or chemical powders or

page_text: ointments into any of the canals of the human body for curative or surgical pur-
poses although it may be used for analogous purposes.
The attached drawing illustrates the invention, Figure 1 shewing a central
section of it when the stop which regulates the charge is a fixture on the push
rod, while Figure 2 shews the stop adjustable in order to vary the charge, and
Figure 3 a view of the open end.
The appliance consists of a parallel open ended glass tube A having a pusher B
arranged to work to and fro a limited distance within it, the fore end of the glass
tube at a is left completely open whilst the back end has a threaded metallic
ferrule C cemented on it to receive a screw cap C¹. A central hole c is provided
in said screw cap to receive a glass rod 13 the inner portion of which has said
solid glass pusher B on it whilst the outer part is furnished with a beaded stop b
which just allows the pusher to travel to flush with the open end a of the glass
tube and again beyond said stop is a band piece . Also on the glass rod within
the tube another beaded stop is provided which may either be made a fixture
on the rod as shewn in Figure 1 or be separate and screwed thereon as shown
in Figure 2 in order, in the latter case, to allow its position to be adjusted to
suit the quantity which the outer part a' of the tube will hold and which has to
be introduced.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, as communicated to
me by my foreign correspondents, I declare that what
claim is
A powder introducing appliance consisting of an open-ended tube as A having a
screwed ferrule and cap as C-C at its opposite end, and within the tube a pusher.
as B, at end of a push rod, as B, said rod being furnished with either a fixed, or
an adjustable stop as 62 to determine the charge and a stop to bring the pusher
to a standstill when it is flush with end a of tube substantially as herein described
and shewn in the drawings.