Improvements in Apparatus for use in Administering Medicinal Doses and the like.
Year: 1899

page_text: Date of Application; 26th Jan., 1899-Accepted, 1st Apr., 1899
COMPLETE SPECIFICATION.
Improvements in Apparatus for use in Administering Medicinal
Doses and the like.
I, WILLIS JOHN BICKFORD, of No. 54, Brienner Strasse, in the City of Munich,
in the German Empire, Dentist, 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:-
The subject of the present invention is an apparatus for use in administering
medicaments, either in fluid or pasty state, in exactly uniform doses.
It is of frequent occurrence, for instance, that a physician or dentist orders a
mouth-wash, or it may be paste, of which, say, 5 grammes have to be added to a
tumbler of water. It is the purpose of the present apparatus to enable such
medicaments to be administered in exact doses of any desired amount. It con-
sists of a receptacle having a tube leading from a point near the bottom up to
the top, and having a laterally bent exit. The top of the vessel is closed by a
cover, having a valve, by depressing which a vertically adjustable plate secured
to it causes some of the contents of the receptacle to be discharged through the
said tube.
On the accompanying drawing
Fig. 1 shows a vertical section of the apparatus, the valve being in its normal
position.
Fig. 2 shows a similar section of the top part of the apparatus, the valve being
depressed.
Fig. 3 shows, on an enlarged scale, the arrangement of the valve-plate.
The receptacle a, which is preferably of cylindrical form and constructed of
glass, has a foot b and a cover c. Near the bottom of the receptacle is the
entrance to the tube d, which extends upwardly to the level of the cover c, and
has a laterally bent exit d. In the cover c is arranged the screw-stopper f
in which is secured a small tube f' forming a guide to receive another tube g,
sliding telescopically within it. In this tube y is secured a spindle h, having a
screw-thread at its lower end (Fig. 3). To this lower spindle-end is screwed
the plate i, which can be raised or lowered as desired, and serves the purpose
of expelling the contents of the receptacle. Around the spindle h is situated the
spiral spring o, which in normal position keeps the case y raised, as shown in
Fig. 1.
Upon pressing down the case g, the air contained in it, together with the
plate i, presses upon the fluid or other substance contained in the receptacle a,
forcing out a certain definite quantity through the tube d. When the plate i no
longer actually touches the fluid the compression of the air contained in the
interior of the receptacle is nevertheless sufficient to effect the same result.
According as the plate i is screwed up or down upon the thread h¹ of the spindle h,
the quantity of the medicament to be expelled is lessened or increased.

page_text: 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:
An apparatus for use in the administration of medicinal doses and the like, of
definite, predetermined quantity, consisting of a receptacle (a) provided with a
discharge tube (d), and having at its top two tubes (g f) sliding telescopically
one within the other, and containing a spiral spring (o) surrounding a spindle (h)
carrying an adjustable disc (i) or the like, capable of being depressed against the
action of said spiral spring, all substantially as and for the purpose hereinbefore
set forth.
מה.:
1000