An Improved Machine for Shelling Peas.
Year: 1889

page_text: Date of Application, 25th Oct., 1889-Accepted, 7th Dec.. 18S9
COMPLETE SPECIFICATION.
An Improved Machine for Shelling Peas.
I LOUIS THIES of Wolfenbüttel German Empire Doctor of Chemisty 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:-
My invention relates to an improved machine for shelling peas and the manner in
which I prefer to carry my invention into effect is shewn in the accompanying
drawings.
Fig. 1 is a ground plan of machine.
Fig. 2 is a longitudinal section.
Fig. 3 is a cross section.
Fig. 4 is a view from behind.
Figs. 5-8 are various details.
The machine consists of a framework A. B. (. and two supports D. E. connected
with the former and serving to carry the intermediate driving gear a. (Figs. 1. 2. 3).
A piece of canvas may be stretched between the lower portion of the two supports A
and B in order to catch what falls through the machine and, up above, the three
supports A, B & C. are connected lengthways by means of two angle-bars which serve
to carry a flooring b, of boards or the like on which are placed the peas to be shelled,
which are subsequently passed into the machine through the opening C.
The mechanism for shelling the peas consists of a shaft d carried by the supports (.
and, A, to which shaft are attached by means of the arms f two pairs of screw blades g, h
(figs. 1. 2.) the shaft being rotated by means of the intermediate gearing a in such a
manner that screw-blades g work forward while screw-blades work backwards, the
former with a peripherical speed of about 600 metres and the latter of about 400
metrees per minute.
The screw-blades consist of flat steel-rails i which are clad on the working side
with vulcanized rubber or leather k (fig. 7).
The worm l. surrounded by a casing m (figs. 1. 2.) serves the purpose of feeding
and distributing evenly to the machine the goods passed in through opening C.
The system of screw-blades already described is surrounded by a drum F
(figs. 1. 2. 3.) which is guided by rollers n. n¹ n" n¹¹¹, such rollers being fixed
to their supports A. B. (fig. 3).
The construction of the drum is shown in figs. 5. 6 and consists of cast-iron
discs 0, o (figs. 1. 2. 5. & 8.) on the inner side of which are arranged 6 or 7 segment
shaped ribs with as many cross-pieces p, p etc. and connected to a skeleton which is
covered over with a preforated metal, preferably zinc sheets etc. the perforation
being counter-sunk in the manner shewn in fig. 6. Each zinc sheet forms a segment
shaped chamber.
The said drum F is geared from the small intermediate gearing G. on the end of
which there is a small cog-wheel which gears into the cog wheel fattached to the
drum disc o (figs. 1. 2. 3. & 5).
The pea-shells are thrown against the round edges of the cross pieces, p. and
against the sheets q whereby the peas are released pass through the preforation and
tumble into the sheeting t. whence they are afterwards removed to the collecting
vessel u the empty shells are driven by the forward acting wings g. against the
rebounding disc v. (Fig. 1 & 2).
The backward acting wings h tending however to keep them back so that they
become thoroughly ventilated. They pass ultimately between the rebounding disc v.
and the drum mantle into the opening w provided with rake out blades and through
the spout of the machine figs. 1. 2. & 4.

page_text: The machine above described may be built to work either by hand or by power.
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 :-
A machine for shelling peas consisting essentially of feeding and distributing worm
the forward & backward acting screw-blades y. h. (fig. 2.) the rails i clothed
with rubber or leather (fig. 7.) the peculiarly shaped drum (fig. 5). all substantially for
the purpose as and in the manner as described and shewn in the drawings.
London, 25th October 1889.
LOUIS THIES.
Per C. R. Bonne & Co.,
41, Eastcheap, E.C., Registered Patent Agents.