Year: 1898

page_text: I, CHARLES MAURICE STANFORD, of High Street, Colchester, in the County of
Essex, Engineer, do hereby declare the nature of this invention to be as follows,
that is to say:-
This improved hulling cylinder for seed threshers and shellers is a hollow
frustrum of a cone placed horizontally and made in two halves meeting on a
plane passing through the axis of the frustrum and having on the inner surface
spirally arranged corrugations.
The casting forming the lower half has an opening through which the seed
escapes. This opening extends from half to two thirds the length of the casting.
The end of the opening near the smaller diameter of the frustrum is preferably
at less distance from that end than the other end of the opening is distant from
the larger end of the frustum.
This opening is fitted with a removable frame upon which woven steel wire
netting is stretched. A series of frames fitted with steel wire netting of various
meshes are provided to suit various kinds of seeds. These frames are easily
changed. If desired perforated plates may be used in place of the wire, and
when requisite the opening can be entirely closed by inserting a plate instead
of a frame. The discharge opening for the hulls straw and chaff is in one side
of this same casting near the small end.
The casting forming the upper half has an opening fitted with cover by which
means access to the beaters is obtained which are of U shape secured on rings
secured by means of arms and bosses to central drum spindle as in an ordinary
threshing machine drum.
The conical drum can be adjusted longitudinally in the conical case a collar
and screw or other suitable means being provided on the spindle for the purpose.
Dated this 18th day of May 1898.
THOS. WILKINS,
Agent for the Applicant.

page_text: manner the same is to be performed, to be particularly described and ascertained
in and by the following statement, that is to say;-
This improved hulling cylinder for seed threshers and shellers is a hollow
frustum or a cone placed horizontally and made in two halves, meeting on a
plane passing through the axis of the frustum and having on the inner surface
spirally arranged corrugations.
This specification is illustrated by the accompanying sheet of drawings on
which Fig. 1 is a vertical longitudinal section of the casing, showing the drum
upon its shaft. Fig. 2 is a vertical transverse section. Fig. 3 is a plan. Fig. 4
an elevation showing the large end of the frustum. Fig. 5 is a part side elevation
near the small end to show the door, covering the discharge opening.
The casting A, forming the lower half has an opening B, through which some
of the seed escapes. This opening preferably extends for from half to two thirds
the length of the casting. The end of the opening near the smaller diameter
of the frustum is preferably at less distance from that end than the other end of
the opening is distant from the larger end of the frustum.
The opening B, is fitted with a removable frame 33 upon which woven steel
wire netting B² is stretched. A series of frames B fitted with steel wire net-
ting B of different meshes are provided to suit various kinds of seeds. These
frames are easily changed. If desired perforated plates may be used instead of
the wire net; and when requisite the opening can be entirely closed by inserting
a plate in place of a frame.
The discharge opening C for the hulls, straw, cavings and chaff or such of them.
as have not been separated previously to feeding the seed pods into the machine,
is in one side of casting A, near the small end of the frustum.
The casting D forming the upper half has an opening E fitted with cover El
by which means access to the beaters F is obtained. These beaters are of U shape
secured on rings G which in turn are secured by means of arms and bosses to the
central drum spindle H as in an ordinary threshing machine drum.
The conical drum can be adjusted longitudinally in the case or cylinder by
means of the driving pulley I and collar and screw K, which can be shifted end-
wise on the shaft and secured in respectively suitable positions to prevent end
play of the shaft. Any other known suitable means for adjusting the drum
longitudinally may be employed.
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;-
-
A conical hulling cylinder, having internal spiral corrugations, which cylinder
is fitted with removable screens and with a drum having U shaped beaters spirally
arranged, substantially as and for the purposes described.
Dated this Fifteenth day of February 1899.