Machines for Boring, Drilling, and Undercutting: Minerals.
Year: 1887

page_text: Date of Application, 26th May, 1897
Complete Left, 26th Jan., 1888
Complete Accepted, 2nd Mar., 1888
Machines for Boring, Drilling, and Undercutting: Minerals.
We, THOMAS BOWER, and ROBERT WILLIAM BOWER of Allerton Main Collieries,
Woodlesford, Colliery Proprietors, 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 as hereafter
described for imparting motion to machines for boring, drilling, and undercutting.
minerals.
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 boring, drilling, or
undercutting machine, through suitable cables. When used for drilling or boring
purposes only, any required number of spindles may be employed, the motor being
connected by suitable gearing, so as to bring all the drilling or boring spindles into
operation simultaneously.
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 boring, drilling,
or undercutting machine, and as the speed of the motor is regulated by the cut off
motion, such adjusted speed is conveyed to the tool for boring, drilling or under-
cutting.
Dated this 26th day of Mov 1887

page_text: Machines for Boring, Drilling, and Undercutting Minerals.
We, THOMAS BOWER and ROBERT WILLIAM BOWER of Allerton Main Collieries,
Woodlesford, Colliery Proprietors, 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 as hereafter
described for imparting motion to machines for boring, drilling and undercutting
minerals.
In the accompanying drawings Fig. is a side elevation. Fig. 2 a plan looking 1
at the top, and Figs. 3 and 4 are end elevations shewing boring apparatus.
For the above purpose we employ a dynamo machine of high or other suitable
tension from which the electro motive force is imparted to a motor attached to the
boring, drilling or undercutting machine through suitable cables.
In the drawings we have shewn an "Immisch" motor A mounted on a turntable B
carried on the bed plate C, the whole being mounted upon wheels or runners D.
The motor shaft E has provided on the end thereof a coupling plate F corresponding
with another coupling plate G provided on the cutter bar H. The cutter bar H is
coupled to the motor shaft E by means of the aforesaid coupling plates F and G and
bolts J, or by other suitable means. The required rotary movement is given to the
turntable B on which the motor A rests by means of a worm K, mounted on the
shaft L supported in bearings M on the bed plate C, and worm wheel segment N
provided on the rim of the turntable B. By these means the cutter bar can be moved
along by the attendant as the mineral is being cut and the proper feed given thereto.
The above arrangement of cutter H on the end of the motor shaft E is for the 2
purpose of undercutting minerals; but for the purpose of boring and drilling we
employ any required number of spindles O. O' mounted in suitable bearings P. P¹ in
headstocks R. R³, fitted so as to slide freely in the slides S. S¹ provided on the turn-
table B. These spindles are by preference placed at right angles to the motor shaft E,
and for the purpose of imparting the required motion thereto the bevel wheels T
and Tare employed, or when an intermittent "tamping" or forward movement of
the tool is required we employ the eccentric U which gives such movement to the
headstock through the rod V to which it is coupled; or when the spindles are all
required to have one rotary movement they may be geared together in the ordinary
way so as to transmit from one to the other such movement.
Other suitable gearing may be employed for transmitting motion to the boring and
drilling spindles than the hereinbefore mentioned. The headstocks R. R¹ are fed
forward by means of screws ✗ and nuts Y, operated by the attendant or from some

page_text: convenient moving. part of the machine, for the purpose of feeding the cutters O
and O¹.
By the movement of the turntable C the boring and drilling tools may be brought
into any convenient position for their work, and by this arrangement the operation of
undercutting can be used separate from that of the boring or drilling.
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, and as the speed of the
motor is adjusted, such adjusted speed is conveyed to the tool for boring, drilling or
undercutting.
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 :-
1st. The application of electric motor A for imparting motion to the cutter bar H,
and various parts in connection therewith, all arranged and operating substantially as
and for purposes herein set forth.
2nd. The arrangement and application of electric motor for imparting motion to
machines for boring, drilling and undercutting minerals, substantially as herein set
forth.