and Disintegrating Substances.
Year: 1885

page_text: and Disintegrating Substances.
I AMBROSE WILLIAM GLEED, Lansdowne Road, Sheffield, in the County of York,
Mechanical Engineer, do hereby declare the nature of my Invention for "IMPROVE-
MENTS IN MACHINERY FOR GRINDING, CRUSHING, PULVERIZING, AND DISINTEGRATING
SUBSTANCES to be as follows:-
ין
This Invention relates to Improvements in machines and appliances of the same
class as those described in the Specifications of Charles Lucop (A.D. 1875 N° 1429)
and of Nathan Gold Kimberley (A.D. 1876 N° 4463.)
Machines and appliances hitherto constructed under these Patents have comprised
what may be termed single machines, and have consisted of a grinding cylinder
or case, one set of revolving balls, or rollers with their appurtenant fittings and
appliances placed in a central position in the machine, on each side of the last
named grinding cylinder, or case, is placed a cylindrical feed or supply chamber,
the inlets to which being placed on the top of each chamber, and both being
connected and supplied by one hopper.
To the outer side of each of these supply chambers is fitted a sieve or screen, so
arranged that it may be taken out and replaced with other similar sieves or screens
of varying size as to mesh.
To the outside of each supply chamber and screen are placed the delivery or
discharge passages, and to the outer side of the last named parts are placed the
standards and bearings in which the shaft of the machine revolves, on this shaft a
fast and loose pulley is placed on the one side, and the fly wheel on the other, and
in some cases a fly wheel is placed on both sides, the foregoing is a general
description of the arrangement of the several parts of machines of this class as at
present constructed.
The object of my present Invention is to increase the efficiency and productive
power of such machines without materially increasing their size, or power required
to drive them.
I effect this object in the following manner, namely, in lieu of the grinding
cylinder or case occupying the central position in the machine I place a feed
chamber with one inlet and a single hopper, on each side of the centrally placed
feed chamber, I place a grinding cylinder or case with its set of revolving balls, or
rollers and appurtenant fittings and appliances, and on the outerside of the last
named grinding cylinders or cases, I place sieves or screens, discharge passages,
standards and bearings, in a similar manner to that already described, the whole

page_text: being affixed to or mounted upon a suitably constructed frame or base plate, I also
provide where necessary and in accordance with the size of the machine, two fly
wheels and driving pulleys, one fly wheel, and one pulley or set of pulleys, being
placed at each end of the shaft so as to equalize and balance the motion of the
working parts of the machine which are propelled at a high velocity.
The essential feature of my Invention with one exception (which is hereinafter
described) consists in the duplex arrangement of the grinding cylinders, or cases,
with their respective rollers and appurtenant fittings and appliances, and which
I have demonstrated by experiments to have the effect of increasing the productive
power of the machine more than twofold at only a slight increase of power
employed to drive it, The general arrangement and details of the machine in other
respects remain as in machines constructed on the single plan, with the exception
already mentioned, which comprises an improvement in the construction and fixing
of the sieves or screens.
The object of my invention in this respect being to render the sieves or screens
stronger and more secure when fitted in their places, at the same time more easy
to remove when necessary to do so for the purpose of repair renewal or change
of mesh.
I effect this by cutting the gauze or other material, into two half discs, each
half being cut so as to form a lap or lip, which lap or lip extends over nearly, but
not quite the whole of its diameter, each half disc of the material forming the
sieve is also cut so as to fit closely on to the shaft so that one half may be placed
over the upperside of the shaft, and the other half over the underside of the shaft,
so that when they are both in place, they fit the shaft closely all round, the casing
of the machine to which the sieves or screens are attached is recessed to receive the
sieves or screens, and likewise a metallic retaining ring which extends round the
outer edge of the sieve or screen material, but so as not to unite at the joints,
a space being left between the upper and lower retaining ring for a metallic cross
bar, or cross bars to be fixed, which would extend from one side to the other, the
cross bar or bars being cranked so as to fit closely round the shaft, one or more set
screws or other equivalent fastenings are employed for securing each of the retaining
rings and cross bar or bars in position, the joints in the material of the sieve or
screen may likewise be made good by screwing them at intervals along their length
to the cross bar, or cross bars with bolts or other equivalent means.
The joints of the material forming the sieve or screen round and about the shaft
are likewise made good by employing a recessed bush on the shaft, into the recess
of which, spun yarn, or other packing material may be introduced, the bush being
made with a flange, so as to allow of its being screwed, or drawn up to the cross
bar, or cross bars already described in such a manner as to securely hold the
material forming the sieve, or screen in the vicinity of the shaft, and to make the
joints close enough to prevent the passage of any material from the grinding
chamber of the machine to the delivery passages except through the sieves or
screens, the improvements herein last described are applicable either to single or
double machines, or to machines with a larger number of grinding parts.
I do not restrict my Invention as applicable to a duplex arrangement only, as
three, four, or more grinding cylinders, or cases, with their respective rollers,
appurtenances, and appliances may be placed in a manner somewhat similar to that
described for the duplex arrangement, without departing from the principle of my
Invention.
1
tambaa 1002

page_text: using, I diverising,
and Disintegrating Substances.
I, AMBROSE WILLIAM GLEED of Lansdowne Road Sheffield in the County of
York, Mechanical Engineer 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:-
My Invention relates to Improvements in machines of the class in which balls
or rollers act by centrifugal force to effect the grinding crushing pulverising or
disintegration of the materials acted upon.
The object of my Invention is to increase the efficiency and productive power of
such machines without objectionably or correspondingly increasing their size or the
power required to drive them.
According to my said Invention I place in the central position in the machine a
feed chamber inlet and hopper and on each side of this feed chamber I place one
or more grinding cylinders, each with its set of revolving balls or rollers and means
for driving them and in connection with the said grinding cylinders I may employ
any suitable arrangement of propellers and propeller chambers. Towards or at
both the outer ends of the machine I provide sieves or screens, discharge passages
and the necessary standards and bearings for the shaft by which the rotary motion
is conveyed to the operating parts, the propellers being made right-handed on one
side of the machine and left-handed on the other side so that the flow of the
material being ground would always be directed from the central feed chamber
towards both ends of the machine where it would be driven through the sieves or
screens on its way to the outlets or discharge passages, the whole being affixed to
or mounted upon a suitably constructed frame or base plate and the one feed
chamber being common to the grinding and screening appliances at each side of it.
I provide where necessary as in larger machines, two driving pulleys and I
prefer to use two fly wheels, one placed at each end of the shaft, so as to equalize
and balance the motion of the working parts of the machine.
The revolving balls or rollers may be placed in such a manner that each ball or
roller will travel over a distinct path or surface in the grinding cylinder in which
it operates or the balls or rollers may be arranged so that some of them follow one
another over the same path or surface.
In a machine fitted with grinding cylinders and propeller chambers with their
respective rollers propellers and appurtenant fittings and appliances disposed on
each side of a feed chamber common to both or all of the grinding cylinders as
hereinbefore described, a greatly increased production of ground material is obtained
with but a slight increase of power beyond that required for an ordinary or single
machine and a considerable decrease is effected in the wear and tear of the sieves
or screens as by the improved arrangement according to my Invention the rough
material cannot come in contact with the sieves or screens until it has passed
through one or other of the grinding cylinders.

page_text: When a series of grinding cylinders is employed on both sides of the centrally
placed feed chamber, propellers may be placed between each or between alternate
grinding cylinders to assist the flow of the ground material through the sieves or
screens,
And in order that my said Invention may be fully understood, I shall now
proceed more particularly to describe the same and for that purpose shall refer to
the several figures on the annexed Sheet of Drawings, the same letters of reference
indicating corresponding parts in all the figures.
4
Figure 1 of the accompanying Drawings represents in side elevation and Figure 2
in longitudinal Section a machine constructed according to my Invention with one
grinding cylinder and its propelling screening and delivering appliances on either
side of an inlet and feed chamber common to both. A is a central casting in which
is the feed opening provided with a hopper, B by which the material to be treated
is introduced into the machine, C are the outward castings between which and the
casting A the removeable grinding rings D are held, E are castings which have in
them the discharge passages at e and between these castings and the castings C,
the sieves F are secured. A shaft G passes longitudinally through the apparatus
and carries the slotted arms H by which the grinding balls or rollers h are carried
so that they are opposite the rings D. J are propellers so disposed as to direct
the material away from the centre of the machine towards the respective outlet
ends. As these parts may be of any well known or suitable construction in detail
and arrangement it is unnecessary for me to explain them in detail as it will be
understood that they may be considerably varied as hereinbefore explained without
departing from the essential feature of my Invention as hereinafter claimed I have
illustrated the arrangement shewn as the best way with which I am acquainted for
carrying my Invention into practical effect.
As before explained I do not limit myself to the use of only one set of grinding
rollers on each side of the inlet as any suitable number of sets may be used with
or without any number and arrangement of propellers and with any suitable
arrangement of screens.
Having now particularly described and ascertained the nature of my said
Invention and the manner in which the same is to be performed I declare that
what I claim is:
First, In machinery for grinding crushing or the like, the combination of
chambers in which the grinding or the like is effected disposed on both sides of
a central feed chamber or inlet substantially as and for the purposes herein before
described.
Second, The arrangement and combination of parts constituting the duplex
machine for grinding or the like substantially as hereinbefore described and
illustrated in the accompanying Drawings.
Dated this 11th day of Inne 1886.