Improvements in Machines for Peeling Potatoes and the like.
Year: 1892

page_text: COMPLETE SPECIFICATION.
Improvements in Machines for Peeling Potatoes and the like.
I, EMIL JAEGER, Captain of Horse, of Münster, Westphalia, in the Empire of
Germany 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 this invention is to provide a machine into which produce such as
potatoes may be placed for the purpose of removing their outer skins and the dirt
adhering thereto, in other words for peeling such potatoes or produce of like
nature and cleaning them in place of using hand labour.
Reference being made to the annexed drawings. Fig. 1 is an exterior elevation
of the improved machine. Fig. 2 is a plan view thereof. Fig. 3 is a central
vertical section thereof. Fig. 4 is a view on a larger scale of one of the rasping
blades. Fig. 5 is a plan view of the rotary bottom of the chamber in which the
potatoes are placed. Fig. 6 is a side elevation of this bottom. Fig. 7 is an end view
of Fig. 4. Fig. 8 is a broken view of part of the side wall of the said chamber
illustrating the method of arranging the rasping blades, this figure being on the
same scale as Fig. 4. Fig. 9 is a plan or edge view of Fig. 8.
Within a suitable vertical container of sheet metal A which forms also the
general frame work and stand of the machine, is the chamber for receiving the
potatoes and subjecting them to the peeling action of a number of rasping blades.
This chamber has a cylindrical vertical side or circumferential wall B which
occupies the whole upper part of the container A being supported upon brackets a a a
therein and fixed in place by screws b. This wall B is of sheet metal and on it
are fixed, preferably vertically a number of rasping blades C shown in detail in
Figs. 4 and 7. These blades are bent longitudinally at an angle as shown in Figs. 7
and 9 of about 20° from the flat and their bent up portions are slit so as to form a
number of practically independent spring blades ċ the surfaces of which are made
like rasps.
The plates or blades C are fixed on the wall B by screws so as to be
removeable for cleaning when desired or for repairs. They are arranged as shown
in Fig. 7 so that the projecting part of each blade overlaps the fixed base of the
blade next in front. Angle blocks or plates of iron D are fixed under each blade
to prevent the spring parts c from being deflected too far from their normal
position under the impact of the potatoes.
The bottom H of the chamber aforesaid is made to revolve about a central
vertical axis and it extends across the whole of the chamber but is just out of
contact of the aforesaid circumferential wall B. The bottom H is carried by
and is fixed to the central vertical shaft G carried below in a step bearing in the
cross beam F and above in a collar bearing in the cross beam E. It is revolved
by bevelled gear G' from the shaft G which may either be revolved by hand
through crank handles G* G* or by power.
The bottom H carries a number of blades similar to the blades C in respect of
being divided into separate spring like and inclined fingers, but the surfaces of
these fingers, which lie in circles about the centre of the bottom, are cross-
hatched in a similar manner to coarse files. This bottom is intended when revolved
quickly to throw the potatoes repeatedly upward against the side wall B while
also giving them a rolling or turning movement about their centres so as to
bring every part of the surface into contact with the rasps on the said wall.
It will be noticed that the blades h project rearward from the direction of
revolution while the direction of the blades c is contrary to the direction of the
blades h. The bottom H is prevented from being turned in the wrong direction by
a ratchet and pawl Z on the shaft G³.

page_text: Part of the wall B is made as a sliding door as at K Figs. 2 and 3 and in front
of this door is a chute I through which the potatoes are thrown out when the pro-
cess of peeling is judged to be finished and the door K is lifted for the purpose.
The centrifugal force will throw the finished potatoes out at the door K when the
latter is opened.
Below the bottom H at a suitable distance therefrom is a bottom A' fixed in the
container A and in the wall thereof is a spout or chute A' for the purpose of allowing
the waste peel and dirt which is washed down by a water current to leave the
machine.
•
This water current is supplied from any suitable source to the pipe X which lies
inside the container A just above the wall B and extends nearly all round the said
wall. This pipe X is perforated on the under side and washes down all the raspings
off the blades C and out at the spout A'.
The deeply seated "eyes" in the potatoes are removed afterwards by hand, the
spring like and independent nature of the blades c however enables the rasps to
properly and evenly clean the general surface of the potatoes.
Having now particularly described and ascertained the nature of this said inven-
tion and in what manner the same is to be performed, I declare that what. I
claim is ;-
In a machine for peeling potatoes or like produce.
1) The combination with a stationary circumferential wall B having spring like
rasp blades inclined thereto, of a rotary bottom H having also spring like blades
thereon for the purpose set forth.
2) The combination of an outer container A, a chute I thereto, an inner chamber
having a fixed circumferential wall B with rasps thereon, a sliding door K opposite
said chute I, and a rotary bottom H with spring blades thereon for the purpose set
forth.
3) The combination of an outer container A a bottom A' therein, a chute A²-
an inner chamber having a fixed rasping wall and a rotary bottom adapted to
cooperate as described, and a water supply pipe X above said rasping wall for the
purpose set forth.
4) A rasping wall comprising a number of bent spring blades C having blades e
substantially as described.
5) A rasping wall comprising a number of bent spring plates C having projecting
blades c and angular blocks or stops D thereunder for the purpose set forth.
Dated this 15th day of December 1892.
R. HADDAN,
Herbert Haddan & Co.,
18, Buckingham Street, Strand, London, Agent for Applicant.