IMPROVEMENTS IN SELF REGULATING FEEDS FOR GRINDING MILLS PURIFIERS, AND OTHER SIMILAR MACHINES to be as follows:
Year: 1884

page_text: I JOHN EDWARD WALSH of 8 Quality Court Chancery Lane London in the
County of Middlesex Consulting Engineer, do hereby declare, the nature of my
Invention for "IMPROVEMENTS IN SELF REGULATING FEEDS FOR GRINDING MILLS
PURIFIERS, AND OTHER SIMILAR MACHINES to be as follows:-
"
The object of my, invention is to construct a self-regulating feed, which will
evenly distribute the contents of the hoppers, equally along the whole length of the
rollers being fed, and prevent any flushing, at the same time checking or limiting,
the amount of the feed as required.
In front of the hopper (inside or outside) I attach a pivotted or hinged door,
below the pivot or hinge of the door, I attach an inclined stud; upon which is a
weight and runner, to the weight or runner is attached a cord, wire, or chain
which passes under or. over pulleys, towards the top part of the hopper, where it
passes over a pulley on an adjustable stud, and down to the inside of the bottom
of the hinged door, to which it is attached, the weight upon the inclined stud, keep
the door. against the feed roller, and so limits the feed, and the cord or chain,
attached to the weight, being. at its other end, attached to the inner part of the
bottom of the door, is also always pulling the door, on to the feed roller, but when a
flush takes place, the door is pushed back, the incline, of the stud is not so steep,
and the weight moves towards the pivot of door, and so decreases the leverage, as
well as the gradient being decreased, so that there is both less pull and leverage,
upon the door; in fact as the feed supply increases or diminishes, the weight moves
nearer to or from the pivot of the inclined stud, acting as a governor to the feed ;
to limit the amount of feed, a collar and thumbscrew, is placed upon the inclined
stud, and so it can be readily limited to any extent required, the stud may be
made pivotted and adjustable, as to the amount of its incline, and so the leverage
and pull upon the regulator board or door can be increased or decreased; when
the regulator board or. door. is placed inside the hopper, the cord is attached above
the pivot of the board and then passes to the weight on the inclined stud, as
before described; the stud in that case may or may not act as a lever, as it may
either be on the fixed front of the hopper or upon the regulator board, inside the
hopper, to prevent the material when fed into the hopper, from gathering or piling
up, in the centre of the hopper, I place a conical spreader, under each feed, with
holes, so as to allow part of the feed to drop in the centre, and part midway, and
the rest passes towards the sides of the hopper, this keeps the feed more regularly
distributed in the hoppers.

page_text: Fig. 1 is a sectional side elevation of hopper with my improved self regulating
feed attached.
Fig. 2 is a front elevation of Fig. 1.
Fig. 3 and 4 shew sectional elevations with regulator board inside hopper.
Figs. 5 and 6 are details of adjustable slide or lever.
A is the hopper, (inside or outside) to which is attached a pivotted or hinged
door or valve B, below the pivot or hinge of the door or valve B, I attach an
inclined slide rod, stud, or lever C, upon which. is a weight and runner D, to the
weight or runner is attached a cord, wire, or chain E, which passes under or over
pulleys F; towards the top part of the hopper where it passes over a pulley G, on
an adjustable stud or bracket H, and inside the hopper down the inside J
of the bottom of the hinged door or valve, to which it is attached, the weight upon
the inclined stud, keeps the door against the feed roller, and so limits the feed, and
the cord or chain, attached to the weight, being at its other end attached to the
inner part of the bottom of the door, is also always pulling the door on to the feed
roller K, but when a flush takes place, the door is pushed back, and as it pushes
back, the incline of the stud is not so steep, and the weight moves towards the
pivot of the door, more easily, and so decreases the leverage as well as the gradiente
being decreased, so that there is both less pull, and leverage, upon the door; in
fact as the feed supply increases or diminishes, the weight moves nearer. to or
from the pivot of the inclined stud, acting as a governor to the feed; to limit the
amount of feed and prevent flushing, a collar L, and thumbscrew M, is placed upon
the inclined stud, and so it can be readily limited to any extent required, the stud
may be made pivotted as at N, and adjustable by means of thumbscrew..T, and flat
part R of stud as to the amount of its incline, and so the leverage and pull upon
the regulator board or door can be increased or decreased; when the regulator
board-or door is placed inside the hopper see Fig. 3. the cord is attached above the
pivot of the board, and then passes to the weight on the inclined stud as before
described; the stud in that case, does not act as a lever, as it may either be on the

page_text: fixed front of the hopper or upon the regulator board. Inside the hopper to
prevent the material when fed into the hopper, from gathering or piling up in the
centre of the hopper, I place a conical spreader P, under each feed so as to allow
part of the feed to drop in the centre, and part midway between the centre and
the ends, and the rest passes towards the sides of the hopper, this keeps the feed
more regularly distributed in the hopper.
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
1 In regulating the feeds of rollers and purifiers, the use of the inclined stud,
acting both as an incline for the weight and as a lever upon the pivotted door or
valve adjustable or non adjustable.
2 The employment of a sliding weight and cord or chain, connected to the flap,
valve, or door, inside or outside of the hopper.
3 The means of adjusting the cord or weight and so regulating the sliding
position of the weight upon the slide rod or lever.
4 The means of checking or limiting the movement of the flap, valve, or door,
and so preventing flushing, by the collar on the slide rod, as shewn and described.
5 The general arrangement of self regulating feeds as shewn and described.
Di
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