Improvements in Apparatus for Keeping Open and Cleaning Per- forations in Zinc or Steel and Meshes in Wire on Sieves in Dickeys for Separating Grain, Dust, and the like.
Year: 1886

page_text: Date of Application, 27th July, 1886.
Complete Left, 26th Apr., 1887.
• Complete Accepted, 27th May, 1887
Improvements in Apparatus for Keeping Open and Cleaning Per-
forations in Zinc or Steel and Meshes in Wire on Sieves in
Dickeys for Separating Grain, Dust, and the like.
We JOHN BEAL, of Hillfoot, Sheffield, Millwright, and RICHARD WIGFULL and
THOMAS DICKON WIGFULL, of Walker Street, Sheffield, in the County of York,
Millers, do hereby declare the nature of our said invention for "IMPROVEMENTS IN
APPARATUS FOR KEEPING OPEN AND CLEANING PERFORATIONS IN ZINC OR STEEL
AND MESHES IN WIRE ON SIEVES IN DICKEYS FOR SEPARATING GRAIN, DUST, AND
THE LIKE," to be as follows:-
-
In combination with the grain separating machines at present in use we construct a
shaft which is fitted under the fan or exhaust box and connected therewith is a worm
and a pulley working with which upon a shaft fixed at right angles to the first shaft is
a worn wheel, with a face-plate and pin at the reverse end of the shaft.
The pin is fitted to the face plate in two rectangular holes so as to slide therein for
the purpose of altering the stroke of the spring which spring fitted to the side of the
machine extends to the centre or thereabouts of the sieve.
Fitted on the end of the spring is a wrought iron projection which the pin catches
in its revolution lifting it and then dropping it sharply onto to a bridge which is fixed
to the topmost sieve. The stroke of the spring being imparted to all the sieves which
may be in use in the machine releases the perforations thereof which have a tendency
to get made up with the refuse part of the grain thus obviating the necessity of a
person having frequently to strike the said sieves for the same purpose.

page_text: One, two, or more springs may be used on one machine but if we employ moro
than one we shall connect them by a bar running near the ends thereof the centre one
only being fitted with a projection as above described. By using two or more springs
we get a greater strength and expansion of stroke.
The springs may be made of wood, iron, steel or other suitable material.
By the use of the worm and worm wheel we can increase or decrease (by pulleys)
the speed at which the pin for working the spring revolves.
This invention applies only to dickeys fitted with flat sieves and not to upright
cylinders or revolving reels.
GARLICK & MCGOWAN,
Agents for the Applicants..

page_text: Improvements in Apparatus for Keeping Open and Cleaning Per-
forations in Zino or Steel and Meshes in Wire on Sieves in
Dickeys for Separating Grain, Dust, and the like.
We, JOHN BEAL, of Hillfoot, Sheffield Millwright, and RICHARD WIGFULL, and
THOMAS DICKON WIGFULL of Walker Street Sheffield in the County of York, Millers,
do hereby declare the nature of our said invention for "IMPROVEMENTS IN APPARATUS
FOR KEEPING OPEN AND CLEANING PERFORATIONS IN ZINC OR STEEL, AND MESHERS IN
WIRE ON SIEVES IN DICKEYS FOR SEPARATING GRAIN, DUST, AND THE LIKE," and in
what manner the same is to be performed to be particularly described and ascertained
in and by the following statement :-
In combination with the grain separating machines at present in use wo fix under
the fan or exhaust box an iron or steel shaft, and connect thereto a worm and pulley,
working with which upon a second shaft (fixed at right angles to the first shaft) is a
worm wheel face plate and moveable pin at the reverse end thereof the said moveable
pin is fitted in a hole in the said face plato so as to slide therein for the purpose of
altering (to fall heavier or lighter as required) the stroke of a spring, which spring is
attached to the side of the inachine extending to or about the centre thereof.
Fitted on the end of the spring is a wrought iron projection which the pin in its
revolutions catches and lifts it from and then drops it sharply onto a bridge which is
fixed to the topmost sieve.
All the sieves which may be in use in the machine being connected by bridges, the
stroke of the spring is imparted to all and each of them with sufficient force to release
the perforations thereof, which have a tendency to become blocked by the refuse part
of the grain thus obviating the necessity of a person having frequently to strike the
said sieves for the same purpose.
One, two, or more springs may be used on one machine but if we employ more
than one we shall connect them by a bar running near the ends thereof the centre one
only being provided with a projection as above described. By using two or more
springs we obtain a greater strength and expansion of stroke. The said springs may
be made of wood, iron, or other suitable material.
By the use of the worm and worm wheel we can increase or decrease, by pulleys,
the speed at which the pin, for working the spring, revolves.
This invention applies only to dickeys with flat seives and not to upright cylinders
and revolving reels.
The accompanying drawings illustrate our invention. The same letters of reference
apply to the different views.
A, is a shaft fitted under the fan, or exhaust box having connected therewith a
worm B, and a pulley C, above whigh is a shorter shaft D, fixed at right angles to the
first shaft and is held in brackets E, secured to the bottom of the exhaust box, this
shaft has a worm wheel F, with a face plate G, the face plate having a moveable pin H,
for the purpose of producing the stroke of the spring I, which spring is fixed to the

page_text: side of the machine having a projection J, fitted on the end thereof which the pin in
its revolutions catches lifting it and then dropping it sharply onto a bridge K, which
is fitted to the topmost sieve, shaking bridges L and M which are fixed to the second
and third sieves and thereby releasing the perforations.
Fig. 1 is a plan shewing the apparatus.
Fig. 2 is a side view in elevation.
Fig. 3 is an end view in elevation.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:-
Firstly. In combination with the grain separating machines at present in use a
shaft having at the reverse.end thereof a face plate and pin for the purpose of catching
in its revolution a projection on a spring which lifts the said spring and drops it onto
a bridge fixed to the topmost sieve, to which the other sieves are tightly fitted, and
shaking the whole releasing the perforations or meshes thereof of dust or chiaff contained
therein.
Secondly. An improved apparatus or contrivance for keeping open and cleaning
perforations in zinc or steel and meshes in wire on sieves in dickeys for separating.
grain, dust and the like as hereinbefore specified and described and as illustrated by
the accompanying drawings.
GARLICK & MCGOWAN,
Agents for the Applicants.