Year: 1889

page_text: Date of Application, 31st Jan., 1889
Specification Accepted, 2nd Mar., 1889

page_text: to an angle enclosed by the two stops c, d and the pin i. When the rudder rests
against the stop c, the pressure of the water is decomposed into its components one of
which produces tension of the rope t, the other causing the upward movement of the
cleaner. In order to maintain the rudder b in its fixed diagonal position, it is necessary
to make the arm leaning against the stop c longer than the other arm; the pressure
on the former, which has a longer surface, being greater than that on the latter, the
rudder will not turn about the swivel i unless caused to do so by the rope Z being
pulled upwards, when it will lean against the stop & giving the cleaner a downward
motion.
The cleaner having reached the keel, the rope n is hauled in, whereby the rudder
is brought back to its former position and an upward motion given to the cleaner.
In the alternative arrangement delineated in fig. 4 the cleaner is provided with a
double rudder 61 6 in order to render its action still more reliable. g g are plates
inclined in the direction opposite to that of the water current.
By this means the pressure of the cleaner against the hull is considerably
increased.
Figs. 5, 6 & 7 show an arrangement, in which the cleaner a¹ has a circular shape
and is being rotated by a propeller & mounted upon the shaft x, upon which is fixed
the brush a. The remaining parts b, c and d correspond exactly to the predescribed
parts which were denoted by these letters.
The modification shown in figs. 8 & 9, present the same features of the arrangement
represented in fig. 4 with the exception of the lengthening-pieces h¹ which are
designed with the object to facilitate the reversal of the rudders '62. If the apparatus
is to be used on starboard side the lengthening-piece 7' is fixed in its outward
position as shown in fig. 9, whereas the piece h has to be fixed in that position when
the cleaner is to work on the port side. The keel being reached at the end of the
downward motion of the cleaner, the lengthening-piece bearing against the keel, the
rudders will be reversed automatically and the upward motion of the cleaner will begin.
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 an automatic cleaner for ship's bottoms the combination of a plate a, pro-
vided with tufts of fibrous or metallic material or with knives or other suitable
projections and having stops c and d, with a rudder b swivelling about the pin i,
substantially and for the purpose as described.
2.) In an automatic cleaner for ship's bottoms the combination of a plate a, provided
with tufts of fibrous or metallic material or with knives or other suitable projections
with two rudders 6' 62 connected with one another and swivelling about the pin i,
substantially and for the purpose as described.
3.) In an automatic cleaner for ship's bottoms the combination of a circular brush a¹
and propeller actuating the same, with a rudder band stops c and d, substantially
and for the purpose as described.
4.) In an automatic cleaner for ship's bottoms the combination of a plate a provided
with tufts of fibrous or metallic material or with knives or other suitable projections
and having stops c and d with two rudders 61 and 62 connected to one another and
swivelling about the pin and having lengthening-pieces and ³, substantially and
for the purpose as described.
Dated Roulin this 20th dox of Tan 1880
By A. KUHNT & R. DEISSLER,
38, Alexander Strasse, Berlin C., Germany.