IMPROVEMENTS IN THE APPLICATION OF GRINDING CRUSHING OR MORTAR MILLS TO TRACTION, PORTABLE OR FIXED ENGINES AND IN THE METHOD OF AND MEANS FOR DRIVING THE SAME PART OF WHICH INVENTION IS APPLICABLE FOR OTHER PURPOSES
Year: 1882

page_text: PROVISIONAL SPECIFICATION left by Bernard Asplen at the Office of the
Commissioners of Patents on the 1st March 1882.
BERNARD ASPLEN of Cannon Street in the City of London Mechanical Engineer.
** IMPROVEMENTS IN THE APPLICATION OF GRINDING CRUSHING OR MORTAR MILLS
TO TRACTION, PORTABLE OR FIXED ENGINES AND IN THE METHOD OF AND MEANS
FOR DRIVING THE SAME PART OF WHICH INVENTION IS APPLICABLE FOR OTHER
PURPOSES"
This Invention has for its object the application of grinding crushing or mortar
mills to portable, semi portable or stationary engines of the ordinary locomotive
type by placing the pan on the under side of the boiler and mounting the rollers
on an axis arranged preferably transeversely to the boiler.
The pan is of the usual construction and which carries a large bevil wheel on its
underside into which gears a pinion. On the shaft of the pinion is another bevil
wheel gearing with another pinion on a shaft extending up to and in gear with the
crank shaft from which the motion is imparted to the mill, but I do not confine
myself to this method as motion may be communicated by a chain or by a screw
or spur and bevil gearing.
In some cases it is expedient that the pan should revolve at a slower speed than
at others and to effect this I may have two or more rings of teeth on the under
side of the pan with corresponding pinions and these may be put in and out of gear
by a clutch of suitable construction so that when one pinion is in gear with the
outer ring of teeth the pan would revolve at a slower speed than it would when a
pinion was in gear with the smaller or internal ones but it is obvious that this may
be effected in other ways for example against the crank shaft or other convenient
part when a double set of bevil wheels are so arranged and actuated by a clutch so
as to similarly effect the above object.
I am aware that it has been heretofore proposed to mount a vertical engine and
boiler alongside a mortar or grinding mill on a framing and in some cases supported
on travelling wheels but I do not lay any claim upon any part of such, but the
novelty of the application of such mills to engines with boilers of the locomotive
type devised by me possesses very great advantages both in compactness and
portability and the ready means of driving and altering the speeds.

page_text: The axis of the heavy rollers may be horizontal or at each end arranged at an
angle so that in this case the periphery of the rollers would be conical and by
diverging from the pan on each side would allow it to be placed nearer the
underside of the boiler.
The pan and gearing are suitably arranged in framing and brackets, and the
whole carried by the boiler.
It will be observed that the periphery of the pan may be provided with flanges
and by attaching a rope or cable thereto it may be used for a variety of purposes
such as hauling hoisting &c. the rope may run direct on to the periphery of the pan
and as such periphery is usually made taper the rope would be coiled thereon in a
more effective manner.
In this case the crushing or grinding rollers can be raised by any suitable device
so as not to rotate when the pan or drum is used for the above purposes.
This part of my invention is applicable to drums of other construction and for
similar purposes that may be used on agricultural engines.
An engine with crushing and grinding mill constructed according to this
invention may be as a Traction engine, to drive machinery and at the same time
to actuate the pan whenever required whether for crushing or otherwise making
an excellent combination for contractors builders and brick manufacturers
purposes.
The pan may be arranged around a vertical boiler and either the pan or rollers
actuated as may be most convenient and in a similar manner to that before
described.