An Improved Machine for Peeling Coffee and 'other 'Grain.
Year: 1891

page_text: Date of Application, 4th Feb., 1891
Complete Specification Left, 28th Oct., 1891-Accepted, 28th Nov., 1891
PROVISIONAL SPECIFICATION. .
[Communicated from abroad by Messrs. MIDDLETON & LANCASTER, Engineers
of Rio de Janeiro, in the Republic of Brazil.]
An Improved Machine for Peeling Coffee and 'other 'Grain.
JOHN WILTON GORDON, Engineer, 9 New Broad Street, in the County of
London, do hereby declare the nature of this invention to be as follows:-
This invention has reference to the construction of a machine for peeling coffee
and other grain.
This machine is composed of a drum with movable beaters revolving inside a
cylinder of perforated metal. Bars project into the inside of the perforated cylinder.
The coffee or grain to be hulled is introduced into the perforated cylinder and is
peeled or hulled by the action of the revolving drum with the movable beaters and
the fixed projecting bars.
When the coffee or grain is peeled or hulled it passes out through the perforations
of the cylinder and is acted upon by a fan combined with the "machine which
separates the chaff and dust from the coffee or grain.
Dated this Danuth day of Wah 1001
JOHN WV GORDON
COMPLETE SPECIFICATION.
An Improved Machine for Peeling Coffee and other Grain.
JOHN WILTON GORDON, Engineer, 9 New Broad Street, London, 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 :-
This invention has reference to the construction of a machine for peeling coffee
or other grain.
This machine consists of a drum with moveable beaters revolving inside a
cylinder of perforated metal. Bars project into the inside of the perforated cylinder.
The coffee or grain to be peeled is introduced into the perforated cylinder and is
peeled or hulled by the action of the revolving drum with moveable beaters and the
fixed projecting bars. When the coffee or grain is peeled or hulled it passes through
the perforations of the cylinder and is acted upon by a fan. combined with the
machine which separates the chaff and dust from the coffee or grain.
The accompanying drawings represent a machine constructed according to this
invention.
Fig. 1. represents a side elevation partly in section.
Fig. 2. represents a section through X.
Fig. 3. represents a section, through Y.
Fig. 4. represents a longitudinal section of the drum.
Fig. 5. represents a transverse section of the drum.
Similar letters of reference indicate corresponding parts in these five figures.
A is an horizontal shaft fitted with a drum B having one or more moveable
beaters or bars C.
D is a cylinder in which the drum B revolves and is covered on the top E with
sheet iron, and on the lower side F with perforated sheet or wire work.
G are fixed bars projecting into the cylinder D.
H are exhaust fans which draw in the dust and chaff that come through the
perforations of the cylinder.

page_text: K are inlets for dust and chaff to the fans.
Lis the discharge from the fans.
By turning the screw M the.centres N, N which are connected to the beaters C
by the links O, will be made to advance or retire and so project or withdraw the
beaters C.
The two centres N. N. are coupled together by the rods P.
The action of the machine is as follows:-
The pulley Q on the shaft A being made to revolve the coffee or grain to be
peeled or hulled is put into the hopper R and is fed into the cylinder D by the
screw S. The grain is then peeled or hulled by the action of the revolving drum B
with its projecting beaters C against the fixed bars G. The bars C would project
according to the grain to be treated.
The perforations of the sheet F in the division X are just large enough to let
the chaff and dust through and retain the grain which passes along the cylinder D
and when peeled falls through the perforations on to the sloping board T and is
delivered at V.
Any dust or chaff that falls out with the grain at V is drawn up and over the
board W into the fan at K and is discharged at L.
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. The combination of parts forming an improved machine for peeling coffee
or other grain as herein before described and represented in the accompanying
drawings.
2. The drum with the moveable bars or beaters.
3. The fixed bars projecting into the cylinder.
4. The combination of this machine with an exhaust fan.
JOHN W. GORDON.