Apparatus for Levelling the Coal in a Coke Oven.
Year: 1898

page_text: Date of Application, 4th Feb., 1898-Accepted, 30th Apr., 1898
COMPLETE SPECIFICATION.
Apparatus for Levelling the Coal in a Coke Oven.
I, GUSTAV HILGENSTOCK, of Hattingen, Germany, Engineer, 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:-
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This invention relates to an apparatus for levelling and consolidating the coni-
cal heaps formed by the coal shot through the charging shoots in coke ovens, a
laborious and tardy operation heretofore performed by labourers with levelling
rakes.
Figure 1 of the accompanying drawings is a side view of the apparatus together
with the coke discharging machine and a longitudinal section of the oven showing
the conical heaps of the coal which has been charged.
Figure is a plan of the apparatus.
Figure 3 is a side view on a larger scale, of the inner parts of the carrying rod t
with the rollers d and the shovels f.
Figure 4 is a plan of the same.
Figure 5 is a section in front of one pair of the rollers d.
Figure 6 is a section in front of a shovel f.
An important advantage of the apparatus as compared with others is that the
great power necessary for the to and fro movement of the entire machine is saved.
The apparatus consists essentially of a long horizontal iron carrying rod t
(Figures 1 and 2) passing between guide rollers or in fixed bearings. This rod
may be either a bar or a tube; on its under side it is provided with teeth
(Figures 3, 5 and 6) which engage with the toothed wheel (Figures 1 and 2).
By means of this rack and pinion the rod t can be thrust horizontally into the
coke oven by the power of the steam engine which drives the discharging machine
(or by some other source of power), such power being communicated to the wheel ^,
through the toothed gearing ³ 22 and 2¹ (Figures 1 and 2).
On each side of the carrying rod t a rod a, which may be either a bar or a tube,
movable in the direction of its length is carried between small guide rollers d
(Figures 3-5). Shovels f (Figure 3-6) are mounted on these rods; they may
be constructed of any suitable material and some of them are movable while others
are fixed. On each side of that end of the carrying rod t which is outside the
oven, is situated a crank disc k, each of which is connected with the rods a on its
own side by means of a connecting rod s and a pivot c. The extent of longitudinal
strokes of the rods a may be set to a desired length by means of the guide slots
in the crank disc k; the position of the cranks may be such that they actuate the
connecting rods s and the rods a simultaneously at one and the same angle, or,
for facilitating the levelling and avoiding a one-sided thrust, the position may be
such that the cranks are at an angle of 180° to each other.
Instead of crank discs other driving mechanism may be employed.
The working of the apparatus is as follows:-When the charging of the coal
through the shoots has proceeded so far that the coal no longer slides down
over itself, the carrying rod t is pushed into the oven by means of the aforesaid
CD 017

page_text: wheel gearing 21-25 driven by the steam engine, until the rack z disengages itself
from the pinion . The crank discs k then come in contact with a friction roller h
(Figures 1 and 2), rotated by the fly wheel i of the engine m. The crank discs
thus caused to rotate, move the rods a longitudinally on the carrying rod t, by
means of the connecting rods s; the shovels f mounted on the rods a are thus
moved backwards and forwards through a certain distance over the charge of
coal. In this way the levelling of the conical heaps is effected and the channels
left by the charge are filled, so that a level charge of coal of a depth determined
by the lower edge of the shovels f will be obtained.
In withdrawing the rod t from the oven (after the levelling is accomplished)
the rollers g (Figures 3 and 4) on that end of the rod t which passes into the oven
will solidify the charge of coal by rolling it.
With a slight alteration the apparatus may be worked by means of a hand crank
and the friction roller h may be omitted.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what I
claim is:
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1. An apparatus for the levelling of the coal in a coke oven, consisting of a
rod (carrying rod) which can be thrust into the oven, and of shovels which are
longitudinally movable on the rod while the latter remains at rest during this
movement of the shovels, substantially as described.
2. In an apparatus such as is referred to in Claim 1, a roller attached to that
end of the carrying rod which passes into the oven, so that when the said carrying
rod is withdrawn from the oven the levelled coal is consolidated by being rolled
by the said roller.
3. In an apparatus such as is referred to in Claim 1, a rod or rods on which the
shovels are rigidly mounted, the said rod or rods being carried by the carrying rod
and connected with a crank disc or crank discs which is or are mounted on the
carrying rod.
4. In an apparatus such as is referred to in the first and third claims, effecting the
introduction of the carrying bar and shovels into the oven by means of a toothed
rack and pinion, the rack being of such length that when the carrying rod has
reached its proper inward position the pinion comes out of gear with the rack,
whereupon the crank disc engages with a friction wheel by means of which the
to and fro motion of the shovels is effected substantially as described.
5. The arrangement of the coal levelling apparatus referred to in the preceding
claims in combination with the machinery for discharging the coke so as to be
actuated by the motor thereof, substantially as described.
Dated this 4th day of February 1898.
ABEL & IMRAY,
Agents for the Applicant.