Improved Timing Apparatus for Kitchen Purposes.
Year: 1898

page_text: Date of Application, 2nd May, 1898-Accepted, 23rd July, 1898
COMPLETE SPECIFICATION.
Improved Timing Apparatus for Kitchen Purposes.
I, RUDOLF SCHULZE, of 35, Arndtstrasse, Leipzig, Germany, Inventor, do hereby
declare the nature of this invention, and in what manner the same is to be per-
formed to be particularly described and ascertained in and by the following
statement:-
The present invention relates to a timing apparatus for egg-boiling purposes
the characteristic feature of which is a partly toothed spring-wheel of the apparatus,
this producing, after a determinate lapse of time, a sudden rotation of said spring-
wheel and the shock resulting from this causes the whole apparatus to reverse.
The parts A, B, C of the apparatus correspond with the balance, the anchor and
the spring-wheel of an ordinary clock-work. The wheel D has an escapement and
a pinion meshing with the spring-wheel E. In this spring-wheel a certain
number of teeth is omitted. The mechanism being wound up, a sudden rotation
is produced after a determinate lapse of time when the spring-wheel E, owing to
its toothless or plain part, ceases to mesh with the pinion d of the ratchet-wheel D,
the said spring-wheel being again stopped by the extension of the axle of this
spring-wheel contacting the stop G.
Through the shock which results, the whole clock-work movement, lodged for
instance within an egg-like casing, is reversed. The shock thus produced may
also be utilized for striking a bell.
In order that the apparatus might more easily be reversed, the centre of gravity
thereof is placed outside the main axle, that is, the different parts of the apparatus
are dissymmetrically arranged around the main axle, or loaded with a special
weight and the like.
In the annexed drawing:
Fig. 1 shows a top view of the clock-work movement and Figs. 2 and 3 are side
views of same, lodged within an egg-like casing.
Fig. 2 shows the mechanism at work; the spring-wheel E meshes with the
pinion d of the ratchet-wheel 1).
Fig. 3 shows the stop-arm of the axle F of the spring-wheel, applied on the stop-
pin & after the shock, and the spring-wheel E, owing to the plain part of its face,
now ceases to mesh with the pinion d of the ratchet wheel D.
For the sake of the clearness of drawing the parts A, B and C of the clock-
work movement are not shown in Figs. 2 and 3.
Fig. 4 shows a modification of the ratchet-wheel with which the axle-hole S
is formed by a slot, extending suitably downwards and in which, during the wind-
ing up of the spring-wheel E, the axle of the wheel D can move and take the
position D (dotted lines), so as to allow the wheel 1) to be disengaged from
meshing with pinion of the wheel C; the spring-wheel E being wound up,
the spring H causes the said wheel D to mesh again with the pinion c of the
wheel C

page_text: 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) A timing-apparatus for kitchen purposes, characterised by a toothless or
plain part of the spring-wheel of the apparatus, this producing after a determinate
lapse of time a sudden rotation of said spring-wheel and by the shock resulting
therefrom and reversing the whole apparatus, substantially as and for the purpose
set forth.
2) A modification of the timing apparatus as claimed in 1) or of another
ordinary clock-work movement, distinguished by the fact that the axle-hole S of
the spring-wheel is formed by an elongated slot, in which, when the spring-wheel E
is wound up, the axle. of the wheel I) can move and take the position D¹, to dis-
engage the wheel D from meshing with the pinion c of the wheel C, whilst, after
winding up, the spring H causes the wheel D to mesh again with the pinion of
the wheel C, substantially as and for the purpose set forth.
Dated this 30th day of April 1898.
L. DUVINAGE,
Patent Agent, 8, Rue des Princes, Brussels, Belgium.
L. DUVINAGE,
Patent Agent, 8, Rue des Princes, Brussels, Belgium.