Improvements in Egg-openers.
Year: 1893

page_text: Date of Application, 21st Apr., 1893-Accepted, 27th May, 1893
Improvements in Egg-openers.
I, Baron JOACHIM BRENNER, of Schloss Gainfarn near Vienna, Austria,
Gentleman, 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 object of my invention is to construct an apparatus for cutting off the tops
or ends of eggs, and thereby to do away with the disagreable operation of opening
eggs with an ordinary knife or spoon.
In the annexed drawing an apparatus of this kind is shown.
Figure 1 shows this apparatus in front elevation,
Figure 2 is a longitudinal vertical section through the apparatus,
Figures 3 and 4 cross sections through the handle of the apparatus.
Figure 5 shows in front elevation an apparatus provided with
device, and
guard or safety
Figure 6 is a cross section through this apparatus after line x-x of Fig. 5.
In all figures similar letters of reference indicate. corresponding parts.
The apparatus consists of a plate a which is by preference provided with a
handle b. Plate a has an aperture c with which it is placed over the top or end of
the egg to be opened. At the side-and in the drawing--below opening c, at d', is
pivoted a knife or cutter d, which is pressed or swung in the direction of aperture c
by a spring f. Spring ƒ may be a coiled spring and placed in a box g, or any other
suitable spring may be employed, such as for instance a flat spring, which may
operate upon the knife similarly as the spring of the hammer of a gun. By preference
I provide a spring catch e for arresting knife d in its cocked position, and a
button for operating catch e, in well known manner, to release knife d when
pressed.
The apparatus operates as follows:
The knife being cocked, and retained in this position by hand or by the aforesaid
spring catch, the apparatus is placed over the egg so that the end or top of the
latter will project through opening c. The knife being now released, will be driven
by its spring against the egg and will make a clean cut through the same, severing
the top or end. The way of the knife is by preference limited by a pin or stop di
upon plate a. In order to prevent accidents with the apparatus when provided with
the described catch e and release button h, I cover aperture c with a hinged flap i,
which is hinged to plate a at k, and kept in closed position over aperture c by a
spring. In this case knife d may be provided with an arm m, and flap or cover i
with a recess n in such manner that, when the knife is in its cocked position and
the cover closed, arm m will rest in recess n. Should knife d be now released by
catch e, arm m in recess n would prevent the knife from making any movement.
Only when flap i is raised, which is done by placing the apparatus over an egg, as
indicated in Figure 6, the knife becomes free to swing across aperture when
released. Flap i will at the same time serve to prevent the cut off end of the egg.
from being thrown off the apparatus by the force of the knife.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
1.) An egg opener formed by the combination of a plate a, provided with an
aperture c, with a spring operated knife or cutter d; substantially asdescribed.
21 In ac onenam the ombinatio
h

page_text: of a spring operated knife or cutter d, and of a spring catch e with release button h;
substantially as described.
3.) In egg openers the combination with a plate a, provided with an aperture c, of
a spring operated knife or cutter d, of a spring catch e with releasing device, and
of a spring closed flap or plate i over aperture c; substantially as described.
4.) In egg openers the combination with a plate a, provided with an aperture c,
of a spring operated knife or cutter d with arm m, of a spring catch e with releasing
device, and of a spring closed flap or cover i with recess n; substantially as
described.
11000
GEO.
DOWNING,
8, Quality Court, London, W.C., Agent.