Improvements in and relating to Stone Breaking and Ore Crushing Machines.
Year: 1898

page_text: COMPLETE SPECIFICATION.
Improvements in and relating to Stone Breaking and Ore Crushing
Machines.
I, WILLIAM HENRY BAXTER, of 71, Geldard Road, Leeds, in the County of
York, 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:-
This invention relates to improvements in the means for driving elevators
specially applicable for stone breaking and ore crushing machines and in screens
thereof and its object is to arrange for the more efficient driving of the same, so
as to obviate as far as possible the danger of the workman or attendant being
caught or entangled in the driving mechanism.
In the accompanying drawings:-
Fig. 1 is a sectional elevation of my stone crushing, screening, and delivery.
apparatus with the means for driving the same applied.
Fig. 2 an end elevation of same.
Similar letters refer to similar parts throughout the views.
A is the stone breaking and ore crushing machine with vibrating jaws mounted
upon the stone or other foundation B. C and D are respectively the upper and
the lower screens with peripheries of varying perforations, and each cylindrical
cone of one, two, or more different relative taper diameters, mounted upon
shafts E, F carried in bearings G, H fixed to the framework I. L is the elevator
consisting of an endless belt, the edges of which are arranged to pass over the
peripheries of the pulleys 7 11 13 13 mounted in pairs at suitable distances apart
respectively on the shafts E, F. The elevator buckets are fixed on the inside of
the elevator belt L and they are arranged to work or pass in the space between
each pair of pulleys and 12 18. When endless chains are used in place of the
belt L then a pair of sprocket wheels may be mounted on each of the shafts E
and F, in place of the pulleys 111113, and the buckets are then fixed to such
chains in any suitable manner, as to the belt.
All the above described parts are similarly constructed to my well known stone
breaking and elevating machinery.
To drive the screen C and D and elevator L from the driving shaft O of the stone
breaking machine without the danger of injury to the attendant, I arrange the
driving mechanism as follows:-
a
On the framework I are provided two brackets P in which is mounted a counter
shaft Q, say, at or about a right angle to the screen shaft 'E to which is geared by
the bevel wheel R and pinion R¹. On the driving shaft O and counter shaft Q
are respectively mounted and fixed the sprocket wheels S S¹ over which passes 'the
endless driving chain T. If desired in place of the sprocket wheels S S¹ and
driving chain T ordinary pulleys and belting may be employed. By this means
motion may be imparted directly to the driving shaft O from any convenient
source by a belt U through pulley U¹ mounted on the shaft 0, thence from shaft O
through sprocket wheels S S₁ and driving chain T to the counter shaft Q, bevel
gearing R R and screen shaft E, and from thence to the lower screen D and to its
037

page_text: shaft F by means of the elevator belt L, or by means of an endless chain V
working over and around sprocket wheels W X mounted and fixed respectively
upon the shafts E F.
The material operated after passing from the feed platform J passes into the
stone breaking machine passes from thence down shoot K to the lower screen D.
After passing through the screen D it escapes into the buckets of the elevator L
by which it is conveyed to the upper screen from whence it rolls down an incline"
shoot M into a cart or other receptacle, or passes down the incline shoot N to the
crushing jaws of the stone breaking machine A to be again operated upon.
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
1 claim is:
The means substantially as herein described of driving the (cylindrical cone)
screens C and D of one or more different taper diameters and an elevator L having
buckets arranged on the inside of the elevator belt from the driving shaft of the
stone breaking machine by chains or belts and pulleys all arranged and combined
substantially as and for the purposes herein set forth, and as illustrated in the
accompanying drawings.
Dated this 5th day of September 1898.
WILLIAM HENRY BAXTER.