Improvements in Means for Roasting Coffee Berries and the like.
Year: 1891

page_text: Date of Application, 8th Oct., 1891
Complete Specification Left, 8th July, 1892-Accepted, 18th Aug., 1892
PROVISIONAL SPECIFICATION.
Improvements in Means for Roasting Coffee Berries and the like.
I, HENRY NOBLE, of Italia Villa, St. Thomas, Exeter, Gentleman, do hereby
declare the nature of this invention to be as follows:-
This invention relates to improvements in means for roasting coffee berries. and
the like, more especially designed for use in roasting small quantities of the berries
in such a manner that the favour of same will not be impaired in any way by
burning, or insufficient roasting, or by any of the like causes by which the berries
roasted by the old-fashioned means were heretofore liable to be spoilt or
deteriorated.
The invention consists of a revolving cylinder or drum formed of any suitable
metal, mounted on a spindle the ends of which pass through and are borne by the
ends of a metal case or cover.
Inside the said revolving cylinder or drum I provide a stirring device consisting
of four or more wire bars running lengthwise with the cylinder riveted or other-
wise fastened at each end to a disc of metal and which device may revolve in any
suitable manner in the same direction as the cylinder or in the reverse way
whichever is desirable or convenient.
The object of this stirring device is to prevent the berries from clogging or
getting into a mass, whereby the outer ones are.burned and the inner ones only get
partially roasted.
"To heat the cylinder I fix within the before mentioned metal cover a perforated
pipe which is connected to an ordinary gas-bracket by a length of india-rubber
tubing or by any other suitable means.
This afore mentioned outer case or cover is provided with a hinged lid for
convenience in removing the cylinder when required.
The cylinder is also provided with a sliding door for the purpose of removing
contents of or of refilling same.
DL: DAL 1
1001
I
“COMPLETÉ SPECIFICATION.
Improvements in Means for Roasting Coffee Berries and the like.
I, HENRY NOBLE, of Italia Villa, St. Thomas, Exeter, Gentleman, 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 relates to improvements in means for roasting coffee berries and
the like, more especially designed for use in roasting small quantities of the berries,
in such a manner that the flavour of the same will not be impaired in any way by
burning, or insufficient roasting, or by any of the like causes in consequence
whereof the berries pasted in ordinary machines, were heretofore liable to
deteriorate.
The machine constructed according to this invention consists of a revolving
cylinder or drum, formed of any suitable metal, mounted on a spindle, the ends of
which pass through and are borne by the ends of a metal case or shell.
27

page_text: And in order that my invention may be more fully understood I have shown the
same in the accompanying drawings in which
Fig. 1 is a plan and Fig. 2 a central vertical section, at an enlarged scale, of my
improved coffee roasting machine with the lid open. Fig. 3 is an end view of the
-same with the lid closed.
My improved coffee roasting machine consists of a casing a of tin or other
.suitable material formed integrally with or secured to a bed plate f preferably of
wood or other non conducting material.
This casing is surmounted by a hinged lid 6 and carries, in two central semi-
circular notches formed in the upper edges of each end thereof, the axis e furnished
at one end with a handle h.
Upon this axis is mounted the cylindrical hollow drum c which has an opening
-closed by the door & which slides between the guides 9 rivetted on the periphery of
-the said drum. The casing is provided with a number of perforations / to allow
'the free access of air within the same, and with two circular holes formed in a line
at the lower part of each end, to support the perforated gas barrel p the extremities
of which are screw threaded to receive a ball connection 9 and a screw cap g¹.
"This ball connection is furnished with a central opening which is tapped to receive
the tubular piece p² whereon is fixed one end of an india rubber pipe connected at
the other to any suitable gas supply pipe.
To use the machine, the lid is raised or opened by the aid of the knob b¹ and
the coffee berries or beans are placed inside the drum o, when the door d is closed.
"The gas supply tap being now opened the gas issuing from the barrel is lighted
and the handle his gently turned so as to impart a continual rotary motion to the
-drum c.
I may in some cases provide the axis e with a number of arms of helicoidal
or other shape for the purpose of stirring the coffee berries, but I lay no claim
to such an arrangement.
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 :-
The improved coffee roasting machine constructed, arranged and operating
substantially as herein described and shown and for the purpose set forth.
Dated this 8th day of Inly 1809
HUGHES, SON & Co.,
38, Chancery Lane, W.C., Agents for the Applicant.