Improved Process and Apparatus for Setting Pulp-caps on Teeth.
Year: 1898

page_text: Improved Process and Apparatus for Setting Pulp-caps on Teeth.
I, CARL IRION, of Rottweil, in the Kingdom of Wurtemberg and German
Empire, Mechanical Dentist, do hereby declare the nature of this invention to be
as follows:-
My invention relates to a process and apparatus for the securing of pulp caps
on teeth.
The tooth pulp has been hitherto covered over by dentists by taking hold of
the cap by means of forceps and putting the same in place after it has been
anointed with the requisite medicament. This process is, however, unsatisfac-
tory, because it was seldom possible to set the cap by means of the forceps in the
correct position, and consequently the object in view was only partially attained.
In the case of teeth in positions in which they cannot be examined by the eye
of the operator it may even occur that the caps are placed upside down upon the
tooth surface.
These drawbacks are obviated by my invention, in which the pulp is capped
with the greatest case and perfect certainty, even in places which are invisible
to the eye.
The process consists in providing the pulp cap with a round flat or other pin,
by means of which it can be seized by the cap apparatus afterwards described
and placed on the tooth, after which the projection is removed by the over capper.
Apart from this projection on the top of the caps they possess a cavity of the
usual kind filled with the medicament, such as formagine, pulpine, antiseptine,
and so forth.
The overcapping apparatus consists of a sheath which is prolonged above into,
a curved point of suitable dimensions. Inside this sheath and its prolongation,
which is provided with an aperture or slot, there is placed a spring pin, which is
connected to a bar controlled by a spring in the handle. Upon the lower part
of the sheath there is an adjustable cylinder which effects the movement of the
pin aforesaid by compressing the spring.
'
Means are provided for making the connection of these parts easily detachable
so that one handle can be applied to several apparatuses.
The operation is effected as follows:-
The projection or pin of the cap is taken up by the orifice of the over capping
apparatus in which it is held by friction against the sides. After the cap thus
attached to the apparatus has been put in its place the cylinder on the handle is
pushed from one position into another, whereby the elastic pin connected there-
with is thrust out of the orifice of the bore hole, and consequently the cap is care-
fully and easily released from the apparatus, so that it is deposited exactly upon -

page_text: the place intended for it and remains there. As soon as the cylinder is let go
the movable pin is again withdrawn into the bore hole by means of the spring.
Dated this 13th day of May 1898.
W. P. THOMPSON & Co.,
322, High Holborn, London, W.C., Patent Agents for the Applicant.
Improved Process and Apparatus for Setting Pulp-caps on Teeth.
I, CARL IRION, of Rottweil, in the Kingdom of Wurtemburg and German
Empire, Mechanical 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:-
My invention relates to a process and apparatus for the securing of pulp caps
on teeth.
The tooth cap has been hitherto covered over by dentists by taking hold of
the cap by means of forceps and putting the same in place after it has been
anointed with the requisite medicament. This process, is, however, unsatisfac-
tory, because it was seldom possible to set the cap by means of the forceps in the
correct position, and consequently the object in view was only partially attained.
In the case of teeth in positions in which they cannot be examined by the eye
of the operator it may even occur that the caps are placed upside down upon the
surface of the tooth.
These drawbacks are obviated by my invention, in which the pulp is capped
with the greatest case and perfect certainty, even in places which are out of
sight.
The process consists in providing the pulp cap with a round flat or other pin,
by means of which it can be seized by the capping apparatus afterwards described
and placed on the tooth, after which the projection is released from the tool. On
the accompanying drawing is illustrated the construction of the capping
apparatus:-
Fig. 1 is a view of the same.
Fig. 2 a section on a large scale with the pulp cap.
Fig. 3, the same section after removal of the cap.
Fig. 4 a section of the upper portion on a still larger scale.
Figs. 5 & 6, modified forms of points for the capping apparatus to be employed
according to the position of the tooth.
Figs. 7 & 8 elevation and section respectively of a pulp cap on an enlarged
scale.
As is seen in Figs. 7 & 8, the pulp caps a are provided with projections b
Apart from this projection on the top of the caps they possess a cavity of the
usual kind filled with the medicament such as formagine, pulpine, antiseptine,
and so forth.
The overcapping apparatus consists of a sheath f enclosing the lower part of a
curved tube e of suitable dimensions. Inside the sheath f and tube e, which
latter is provided with an aperture or slot d, there is placed a spring pin i, forming
the free end of a bar h controlled by a spring in the party. Upon the lower
part of the sheath f there is an adjustable cylinder g which effects the movement
of the bar aforesaid by compressing the spring k.
Means are provided for making the connection of these parts easily detachable
so that one handle can be applied to several apparatuses. In Figs. 5 & 6 are shown

page_text: capping apparatuses in which the point e is curved in different ways and which
can be used in difficult cases for teeth which are hardly accessible.
The operation is effected as follows:-
The projection or pin b of the cap a is taken up by the orifice d of the over
capping apparatus f in which it is held by friction against the sides. After the
cap thus attached to the apparatus has been put in its place the cylinder 9 on
the handle (Fig. 2) is pushed from one position into another, whereby the elastic
pin i connected therewith is thrust out of the orifice of the bore hole d and con-
sequently the cap a is carefully and easily released from the apparatus, so that it
is deposited exactly upon the place intended for it and remains there. As soon
as the cylinder g is let go the movable pin i is again withdrawn into the bore
hole d by means of the spring k.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, declare that what I
claim 18:
1. Process for capping tooth-pulps, consisting in firmly grasping the cap by
the pin or projection on its hinder side by means of a suitable capping apparatus,
the placing of the same on the tooth and finally the release of the cap from the
capping apparatus by means of a pin propelled from within the same.
2. The improved apparatus for capping teeth comprising an outer envelope f
having a hole or slot d, a rod bearing a spring bar i, said rod controlled by a
spring and capable of being propelled forward by aid of a projection g sub-
stantially as and for the purpose described with reference to the accompanying
drawings.
1
1000
W. P. THOMPSON & Co.,
322, High Holborn, London, W.C., Patent Agents for the Applicant.