IMPROVE- MENTS IN STONE BREAKING AND CRUSHING MACHINES ELEVATING AND SCREENING APPARATUS
Year: 1885

page_text: I WILLIAM HENRY BAXTER, of 12 Albion Street, Leeds, in the County of
York, Engineer, do hereby declare the nature of my said invention for "IMPROVE-
MENTS IN STONE BREAKING AND CRUSHING MACHINES ELEVATING AND SCREENING
APPARATUS" to be as follows:-
In the working of machines for stone breaking it is found advantageous to
allow a per centage of the stone not reduced to the required size, to pass out of
the machine, and to return such to the machine to be further reduced or broken to
the cubical standard determined upon, but this could be done only at increased
expenditure of labor and money.
This invention consists of improved apparatus whereby the stone broken and
reduced to the required cubical standard will be elevated automatically and
delivered into cart waggon or other receptacle and the portion which is to be
again passed through the machine will be likewise elevated and delivered into the
receiving end of the machine so as to be again passed through and reduced to
required size.
For purpose aforesaid, I employ a cylindrical revolving screen, the cylindrical
part of which will screen out the dust and fine gravel, and at the exit end of such
cylinder, is an endless clevator, the brackets or carriers on which receive the
broken stone, which they elevate to overhead shoots, and to an overhead revolving
cylindrical screen, the other end of screen communicates with and discharges the
stone not sufficiently reduced, to a shoot, leading to the feed end of the breaker.
Meanwhile the "road metal" and other stone sufficiently reduced will pass down
another shoot to a cart, waggon, or other receptacle, or in some cases I use only
the overhead revolving screen, and shoots, the delivery end of the breaker, being
in direct communication with the brackets or carriers of the elevator. The screen
delivers the various sizes and that not sufficiently reduced as above described
passes again to the machine.
The screens and elevator are actuated by pulleys and straps so that there is no
hand work as heretofore.

page_text: Elevating and Screening Apparatus.
I WILLIAM HENRY BAXTER of 12 Albion Street Leeds in the County of
York Engineer do hereby declare the nature of my invention for IMPROVE-
MENTS IN STONE BREAKING AND CRUSHING MACHINES, ELEVATING AND SCREENING
APPARATUS and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
In the working of machines for stone breaking it is found advantageous to
allow a percentage of the stone not reduced to the required size to pass out of the
machine, and to return such to the machine to be further reduced or broken to the
cubical standard determined upon; but this could be done only at increased
expenditure of labour and money.
This invention consists of improved apparatus whereby the stone broken and
reduced to the required cubical standard will be elevated automatically and
delivered into cart, wagon or other receptacle and the portion which is to be again
passed through the machine will be likewise elevated and delivered into the
receiving end of the machine so as to be again passed through and reduced to
required size.
Such being the nature and object of my said invention, the following is a
complete description of same, reference being had to the accompanying drawings
forming a part of this specification in which,
Fig. 1. is a side elevation of stone or ore breaking machine having my improve-
ments applied thereto.
Fig. 2. is an end elevation thereof.
According to this my invention I employ a cylindrical revolving screen, the
cylindrical part of which will screen out the dust and fine gravel, and at the exit
end of such cylinder, is an endless elevator 2. the buckets or carriers on which
receive the broken stone, which they elevate to the overhead shoot 3, and to an
overhead revolving cylindrical screen 4. the other end of screen communicates with
and discharges the stone not sufficiently reduced, to a shoot 5. leading to the feed
end of the breaker 6, meanwhile the "road metal" and other stone sufficiently
reduced will pass down the shoot 7. to a cart, wagon, or other receptacle, or in
some cases I use only the overhead revolving screen, and shoots, the delivery end
of the breaker being in direct communication with the buckets or carriers of the
elevators.
The elevators and screens are driven as follows..
1
On the main shaft a, is a pulley which by straps b, drives the pulley c and on
the axis of which is the bevel pinion f gearing with the bevel g on the screen 1.
on the shaft of the said screen is pulley h which by strap j drives the pulley k on
shaft 6 of the screen 4. on the axis of which is the spur wheel m gearing with and
driving the wheel n on the shaft of the buckets 2.

page_text: 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 a stone or ore breaking machine the parts 1. 2. 3.-5 and 7 all in
combination together with the apparatus for operating or driving the same and as
and for the purpose described and illustrated in the drawings annexed.
2. In a stone or ore breaking machine the parts 1. 2. 3. 5. and 7 all in
combination and as and for the purpose described and illustrated in the drawings
annexed.
3. In a stone or ore breaking or crushing machine the parts 2. 3. 4. 5 and 7. in
combination the stone or ore being delivered direct from the breaker 6 by shoot
such as 6' to the buckets 2 of the elevators and as described herein,