Improvements in Apparatus for Transmitting Motion to Coal Cutting Machines.
Year: 1887

page_text: Date of Application, 5th Feb., 1887
Complete Left, 5th Nov., 1887
Complete Accepted, 6th Dec., 1887
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Transmitting Motion to Coal Cutting
Machines.
We, THOMAS BOWER, and ROBERT WILLIAM BOWER of Allerton Main Collieries,
Woodlesford, Colliery Proprietors, and JAMES BLACKBURN, also of Allerton Main
Collieries, Woodlesford, Colliery Manager, and FREDERICK MORI, of Corn Exchange,
Leeds, Electric Engineer, all in the County of York do hereby declare the nature of
this invention to be as follows:-
Our improvements refer to the employment of an electric motor for imparting
motion to coal cutting machines generally.
For this purpose we employ a dynamo machine of high tension, from which the
electric motive force is imparted to a motor attached to the coal cutting machine
through suitable cables.
Between the motor and the dynamo machine, and in connection with the cables we
employ a cut off motion to regulate the speed of the motor.
The motor is engaged by means of suitable special gearing to the coal cutting
machine, and by means adopted for regulating the speed of the motor, so also such
adjusted speed is conveyed to the coal cutting machine.
Dated this 5th day of February 1887.
J. W. HARDING,
For the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus for Transmitting Motion to Coal Cutting
Machines.
We, THOMAS BOWER and ROBERT WILLIAM BOWER of Allerton Main Collieries,
Woodlesford, Colliery Proprietors, and JAMES BLACKBURN, also of Allerton Main
Collieries Woodlesford, Colliery Manager, and FREDERICK MORI of Corn Exchange,
Leeds, Electric Engineer, all in the County of York, 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 :-
Our improvements refer to the employment of an electric motor for imparting
motion to coal cutting machines generally.
In the accompanying drawings Figs. 1. 2 and 3 are respectively a back elevation,
side elevation and plan looking on the top, shewing our improvements applied to coal
cutting machine for which Letters Patent were granted to Thomas Bower, Robert
William Bower and James Blackburn, dated 26th August 1885 No. 10120.
The framework of the machine is shewn at A, supported on wheels B under the
framework or bed plate C. Within the framework A of the machine is mounted or
applied the electric motor D, which may be of any suitable construction, and to this
motor the electric motive force is imparted through suitable cables from a dynamo
machine of any suitable tension.
A rotary motion is transmitted to the shaft E carrying the cutter bar F through
gearing G and H. G being keyed or otherwise secured on the motor shaft G', and H
being secured or keyed on the cutter bar shaft E. The lower part of the framework
at J to which the upper part of the framework is attached forms a circular turntable,
and is fitted so as to be capable of a rotary movement on the bed plate C; this rotary
movement being effected by means of the worm K, mounted on the shaft L, supported
in the bearings M attached to suitable brackets N, mounted on the bed plate C, and
worm wheel segment O, attached to the upper part of the framework. By this means
the cutter bar F can be moved along by the attendant as the coal is being cut, and
the proper feed given thereto.
Although by preference the motor D is carried on or attached to the coal cutting
machine as shewn in the drawings, we would have it understood that such motor may
be placed at any convenient distance therefrom, and motion transmitted from such
motor to the machine by belt, chain, rope or other gearing, or by storage transmission
or static induction.
Suitable means may be employed for regulating the speed of the motor, and thus
varying or adjusting the speed of the coal cutting machine.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is :-
The general arrangement of electric apparatus for transmitting motion to coal
cutting machines, substantially as herein set forth.
Dated this Fifth day of November 1887.