Year: 1899

page_text: I, LÉONIE VON JARACZEWSKI, of 15, Händelstrasse, Berlin, in the German Empire,
do hereby declare the nature of this invention to be as follows:-
This invention relates to an improved method of attaching the steel blades or
the like of knives, forks and the like to the handles thereof and is more particu-
larly adapted for table knives having valuable metal and other hollow handles.
Heretofore it has been usual to connect the blade and handle of knives etc.,
by means of a tang tongue or the like attached to the bolster upon the end of the
blade of the knife or the like, the said tang being secured inside the handle by
means of shellac or by being screwed into the said handle.
Now, according to this invention the connection of the two parts is
effected outside the handle and through the medium of a short pin
upon a plate secured to the handle, which said pin can be securely but detach-
ably fastened in the thickened bolster of the blade or the like by means of a
screw-thread or in any other suitable manner.
In carrying out the invention as applied to a table knife the handle of the
knife is formed of metal filled with a suitable substance and is closed by a metal
plate, for example by a steel plate, provided on the outside with a short pin
which may be formed with a screw-thread.
The plate is advantageously soldered closely to the end of the metal handle
so as to be securely attached thereto but it can be fastened to the handle in any
other suitable manner, for example both the plate and the screw pin can be made
in one piece with the handle.
The bolster of the knife blade is made stronger than is usually the case and
it is formed with a hole the size of which corresponds to that of the pin. The
said hole can be provided with an internal screw-thread which fits the screw-
thread upon the pin in such a manner that the bolster can be screwed upon the
pin so as to securely but detachably connect the blade to the handle.
Instead of providing the pin of the plate and the corresponding hole in the
socket with screw-t
w-threads, the said pin and the corresponding hole can be made
square. In this arrangement a small set screw is provided in the bolster which
passes into the pin and prevents it leaving the bolster.
My novel arrangement possesses the advantage that by its means blades are
detachably connected to the handles but are still securely fixed thereto when in
use. It is, therefore, possible to easily replace broken, worn or rusty knife
blades by new ones. Furthermore the hollow handle is permanently closed by
the plate soldered thereto so that no water can enter the handle and soften the
filling substance.
In the manufacture of my novel attachments considerable advantage arises from
the fact that the plate and the pin can be easily made in a small number
of predetermined pattern sizes which can be employed, for all the different kinds
of hollow handles. In this case the pin can be easily made with the necessary
degree of accuracy for enabling a blade which has become unsuitable for use to
be replaced by a new blade in such a manner that the cutting edge of the latter
assumes the proper position relatively to the handle.

page_text: Furthermore, with this method of attachment each handle provided with a
normal plate can have a number of different blades adapted to be fitted thereto.
My novel method of attachment can in many cases be used with advantage
for solid handles, particularly when the said handles are made of valuable
material, for example ivory. In such cases the plate which carries the pin must
be secured to the handle in any suitable manner. This can be effected by means
of a ring secured to the plate, by soldering for example, the said ring being
connected to the handle by pins or in any other suitable manner.
It will be obvious that the steel blades etc., of other articles, such as tools
can be secured by my novel method to hollow or solid handles.
Dated the 10th day of April 1899.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.
pients in Aшives, forks and the like.
I, LÉONIE VON JARACZEWSKI, of 15, Händelstrasse, Berlin, in the German Empire,
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:-
-
This invention relates to an improved method of attaching the steel blades or
the like of knives, forks and the like to the handles thereof and is more particu-
larly adapted for table knives having valuable metal and other hollow handles.
According to the invention the connection of the blades and the handles of
knives etc., is effected outside the handle and through the medium of a short pin
upon a plate secured to the handle which said pin can be securely but detach-
ably fastened in the thickened bolster of the blade or the like by means of a
screw-thread or in any other suitable manner.
To enable the invention to be fully understood I will describe it by reference
to the accompanying drawing in which:-
Figure is an elevation partially in section of a hollow handled knife having
a detachable screw-threaded attachment made according to the invention:
Figure 2 is a view at right angles to Figure 1 shewing the two portions of
the knife separate from one another:
Figure 3 is a view similar to Figure 1; and
Figure 4 a view similar to Figure 2 of a modification of the invention.
The handle h of the knife is formed of metal filled with a suitable substance
and closed by a metal plate, for example by a steel plate p provided on the
outside with a short pin which may be formed with a screw-thread as in the
arrangement illustrated in Figures 1 and 2.
The plate is advantageously soldered closely (as illustrated in Figures 1
and 2) to the end of the metal handle so as to be securely attached thereto. I
do not however confine myself to connecting the pin and the handle by soldering
as the said pin can be made in one piece with the handle.
The bolster of the knife blade m is made stronger than is usually the case
and it is formed with a hole the size of which corresponds to that of the pin.
In the arrangement illustrated in Figures 1 and 2 the said hole is formed with
an internal screw-thread which fits the screw-thread upon the pin in such a
manner that the bolster can be screwed upon the pin so as to securely but
detachably connect the blade to the handle.
Instead of providing the pin of the plate p and the corresponding hole in the

page_text: bolster with screw-threads, the said pin z and hole can be made square, as
illustrated in Figures 3 and 4. In this arrangement a small set screws is pro-
vided in the bolster k which passes into the pin z and prevents the pin leaving the
bolster.
use.
My novel arrangement possesses the advantage that by its means blades are
detachably connected to the handles but are still securely fixed thereto when in
It is, therefore, possible to easily replace broken, worn or rusty knife
blades by new ones. Furthermore, the hollow handle is permanently closed by
the plate p soldered thereto so that no water can enter the handle and soften the
filling substance.
In the manufacture of my novel attachments considerable advantage arises from
the fact that the plate p and the pin z can be easily manufactured in a small number
of predetermined pattern sizes which can be employed for all the different kinds
of hollow handles. In this case the pin can be easily made with the necessary
degree of accuracy for enabling a blade which has become unsuitable for use to
be replaced by a new blade in such a manner that the cutting edge of the latter
assumes the proper position relatively to the handle.
Furthermore, with this method of attachment each handle provided with a
normal plate can have a number of different blades adapted to be fitted thereto.
It will be obvious that the steel blades etc., of other articles, such as tools
can be secured by my novel method to hollow or solid handles.
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:
1. In combination with the handles of knives, forks and other tools, a plate
permanently secured to the handle and having a pin which fits into a hole in
the strengthened bolster and serves to detachably secure the blade to the handle.
2. In combination with a metal handle, which is hollow or filled with shellac
or a similar substance, a plate which is soldered on to the edge of the open end
thereof and is provided with a pin which fits into a hole in the strengthened
bolster of the blade of a knife, fork or the like.
3. In combination with a handle for knives, forks and other tools, a plate
permanently secured to the handle and which carries a screw-threaded pin adapted
to fit into an internally screw-threaded hole in the strengthened bolster of the
knife. fork or the like."
4. In combination with a metal handle, which is hollow or filled with shellac
or a similar filling material, a plate which is secured to the edge of the opening
thereof, for example by means of soldering, and which plate carries a pin
formed with a screw-thread which fits an internal screw-thread in the strengthened
bolster of the plate of a knife, fork or the like.
5. In combination with the handles of knives, forks and the like a plate per-
manently secured to the said handle and provided with a square pin or the like
which fits into a hole in the strengthened bolster and a set screw securing the
aid bolster and pin.
6. The manufacture and use of knives, forks, tools or the like, having handles
ecured to the blades or the like, substantially in the manner hereinbefore
described and as illustrated respectively in Figures 1 and 2; and 3 and 4 of the
ccompanying drawings.
1
100
7
JU.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.