IMPROVEMENTS IN TRANSMITTING MOTIVE POWER FROM ELECTRO OR OTHER MOTORS, AND APPARATUS THEREFOR to
Year: 1886

page_text: Date of Application, 16th Mar., 1886.
Complete Left, 15th Jan., 1887.
Complete Accepted, 15th Mar., 1887.
логого аци аррагали нест.
I JAMES GIBSON, Engineer, Cartha Works, Paisley, in the County of Renfrew,
Scotland, do hereby the nature of said invention for IMPROVEMENTS IN TRANSMITTING
MOTIVE POWER FROM ELECTRO OR OTHER MOTORS, AND APPARATUS THEREFOR to be
as follows:
My invention relates to improvements in transmitting motive power and apparatus
therefor, where the speed required is less than the Primary (or critical) speed of the motor
itself i.e. the speed at which the greatest amount of work is performed at the least
expenditure of power.
In carrying out my invention, I employ two tapered drums or cones, placing the
greatest diameter of the one opposite the least diameter of the other, constructed so as
to give any required reduction of speed by increasing or diminishing the diameter of
said cones to suit any number of revolutions required. The motor being attached by
any suitable means to Shaft or Spindle of small drum or cone, while the shaft or
spindle of large drum or cone is attached to machinery to be driven, or as in Launches
or Tramway Cars, may form propeller shaft or axle therefor, & between those cones
I employ three or more friction pulleys, made of any suitable material. Meantime I
prefer compressed paper, moveing upon a slide, and carried by suitable means to enable
ime to get any fractional part of the difference of speed between the greater & less
diameter of the extremities of said cones, without in any way increasing or diminishing
critical speed of motor. The same result may be obtained by the use of either Toothed
Gear, Strap or Rope. By these improvements I can augment the power by reducing
the speed on the shaft driven, while the shaft of the motor retains its original or.
fixed speed, thereby obtaining the greatest amount of power at the least expenditure
of energy.

page_text: COMPLETE SPECIFICATION.
Improvements in Transmitting Motive Power from Electro or other
Motors and Apparatus therefor.
I, JAMES GIBSON, Engineer, Cartha Works, Paisley, in the County of Renfrew,
Scotland, do hereby declare the nature of my invention for IMPROVEMENTS IN TRANS-
MITTING MOTIVE POWER FROM ELECTRO OR OTHER MOTORS AND APPARATUS THEREFOR,
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
My Invention relates to improvements in transmitting motive power and apparatus
therefor, where the speed required is less than the Primary (or critical) speed of the
motor itself i.e. the speed at which the greatest amount of work is performed at the
least expenditure of power.
In carrying out my Invention I employ two tapered Drums or Cones, placing the
greatest diameter of the one opposite the least diameter of the other, constructed so as
to give any required reduction of speed by increasing or diminishing the diameter of
said Cones to suit any number of revolutions required. The motor being attached by
suitable means to shaft or spindle of small Drum or Cone, while the shaft or spindle
of large Cone is attached to machinery to be driven, or, as in Launches or Tramway
Cars may form propeller shaft or axle therefor. Between those Cones, I employ three
or more friction pulleys made of any suitable material, meantime I prefer compressed
paper, moving upon a slide and carried by suitable means to enable me to get any
fractional part of the difference of speed between the greater and lesser diameter of
the extremities of said Cones, without in any way increasing or diminishing critical
speed of motor. The same result may be obtained by the use of either Tooth Gear,
Strap or Rope.
By these improvements, I can augment the power by reducing the speed on the
shaft driven while the shaft of the motor retains its original or fixed speed, thereby
obtaining the greatest amount of power at the least expenditure of energy.
::
To enable my Invention to be fully understood, I proceed to describe the same by
reference to the accompanying Drawings in which figure 1. is a front elevation,
figure 2. sectional end elevation. Similar letters in these figures represent similar
parts. "a" is the small Drum or Cone which is attached to Electro or other motor.
"B" is the Drum or Cone upon shaft or spindle to be driven. c, c, c," set of small
Cones communicating the motion from small Cone "a" to large Cone "" (of these
Cones there may be any number according to power required.) "d" is a lever for
moving smali Cones out of goar or contact with driving and driven Cones or Drums.
<< F"
"E" is the bracket or carrier by moving which with or by means of the screw
the desired speed may be obtained without any alteration of the critical speed of the
small Cone or Drum "a."

page_text: This method of iransmitting power from Electro or other motors possesses advan-
tages over all other methods hitherto in use as it changes velocity into power without
any great loss by friction and is especially suitable for Electric Launches, Tramway
Cars &c.
Having now particularly described and ascertained the nature of my said Invention
and in what manner the same is to be performed, I declare what I claim is:
1st. The combination of parts forming apparatus as hereinbefore described for
transmitting motive power from Electro or other motors.
2nd. The means employed substantially as hereinbefore described for varying, as
required, the power and speed in the machine which is driven while the speed of the
primary motor remains constant.
3rd. The improved apparatus for transmitting motive power from Electro or other
motors as hereinbefore described and represented in the accompanying Drawings.