Improvements in Driving certain Machines by Electro Motive Power.
Year: 1892

page_text: Date of Application, 4th May, 1892
Complete Specification Left, 3rd Feb., 1893-Accepted, 11th Mar., 1893
PROVISIONAL SPECIFICATION.
Improvements in Driving certain Machines by Electro Motive
Power.
ARTHUR CHAPMAN, Vulcan Iron Works, Spencer Street, Rhodeswell Road,
Limehouse, in the County of Middlesex, Engineer, do hereby declare the nature of
this invention to be as follows :-
My improvements apply to all machines that require adaptation of position of
their operating parts, to suit the work to be operated upon, such as percussive or
rotary rock drills, coal boreing machines portable metal drilling machines, stone
dressing and quarrying machines, and all like machines where portability and
adaptability as to position is required, and consist of applying an electric motor
direct to the body of the drill or other machine, so that the motor, and machine
keep the same relative positions, either ascending, or descending, or traversing, or
at any angle.
This is accomplished by means of adjustable quadrants, or segmental devices
attached to bearings fitted loosely on the main shaft or spindle of the drill or
machine as a centre, and held firmly at a radius by studs or bolts to the body of
the machine or drill, thus making it adjustable at any portion of the circle round
the said shaft. The ends of aforesaid quadrants or segmental devices are produced,
and a platform formed thereon on which the motor is firmly fixed. Thus always
allowing the motor to keep its proper position while the drill or machine is at any
angle.
The power from the motor is transmitted to the drill or machine either direct, or
by means of worm, spur, bevil, or other gearing as the speed desired requires, thus
making the motor & machine practically one instrument.
When using worm, or bevil gear I connect motor, & gear spindles with
couplings having a space between their faces, and being driven by pins fixed in the
one part, and fitting loosely into holes in the other part so that no end thrust from
the gear is communicated to the motor.
The combination of drill or machine and motor in order that the one may be
driven by the other in any desired position, and in the way described, without the
intervention of chains belt or other transmission except as above described.
Dated this Fourth day of May 1892.
АЛ. СПАГМAN.
COMPLETE SPECIFICATION.
Improvements in Driving certain Machines by Electro Motive
Power.
ARTHUR CHAPMAN, Vulcan Iron Works, Spencer Street, Rhodeswell Road,
Limehouse, in the County of Middlesex, 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:-
My improvements apply to all machines that require adaptation of position of
their operating parts, to suit the work to be operated upon, such as percussive or
rotary rock drills, coal boreing machines, portable metal or other drilling machines,
stone dressing or quarrying machines, and all other like machines where portability
and adaptability of position is required and consist of applying an electric motor to
the machine or drill in such a manner that the motor & machine keep the relative
positions in which they are fixed, either ascending or descending or traversing or at
any angle.

page_text: This is accomplished by means of adjustable quadrants or segmental devices
attached to bearings fitting loosely on the main shaft or spindle of the machine as
a centre and held firmly at a radius by studs or bolts to the body of the machine or
drill or the, segment may be formed upon the machine or drill, having the motor
affixed upon a bar with loose bearings and the fixing bolt at a radius therewith as
aforesaid.
The drawings herewith shew a motor affixed to the body of a percussive rock
drill and Fig. 1 is a front view of the same Figs. 2 and 3 views from either side of
same, Fig. 4 a plan of the segmental device and Fig. 5 an elevation of the same,
A being the body of the drill, B the shaft to be rotated, C a worm wheel on
shaft B. Da worm engaging in worm wheel and driven by the electric motor E.
through or by the coupling H. F. F. are the segmental devices, secured in any
position by the nuts G. G. I is the space between the couplings and K. K. the
driving pins.
When the drill or machine has to work in a vertical direction (as shown) the
segment will be in the position as shewn, but when the drill or machine has to
work at any angle from the vertical the nuts G. G. are loosened and the motor
brought into the horizontal position as shewn, while the drill or machine is at any
desired angle, the nuts are then tightened and the machine is ready for work in its
new position.
The segments may be made of any desired size, strength or length of circle
according to the work they have to do, and the motor may be placed with its axis
at right angles to the axis of the main shaft of the machine, or in the same line as
the main shaft or at any other desired angle. The drawings shew the electric
motor driving by worm and wheel, but it is obvious that any other form of gearing
can be used, according to the speed and power desired. In order to obviate the
end strain upon the spindle of the electric motor, I in all cases drive through a
coupling as shewn, having the two faces of the coupling kept apart, and driving
only by the pins..
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
1. The application of segmental devices to any machine of a portable character
for carrying an electric motor for working the said machine.
-
2. The application of a platform carrying an electric motor, swung upon the
shaft of the machine, and secured in any desired position by bolts & nuts or pins.
3. The employment in connection with a machine to be driven by an electric
motor, to drive it the application of worm, spur, helical or bevil gear to be worked
in any position of the drill or machine virtually as described.
4. The couplings as shewn having a clear space between the faces, and being
driven by free pins so as to take off any end thrust from the motor substantially
as described.
Dated this 3rd day of February 1893.