Improvements in Apparatus or Arrangements for Transmitting and Controlling the Power of Gas or Vapor or other Motors.
Year: 1894

page_text: Date of Application, 13th July, 1894
Complete Specification Left, 13th Apr., 1895-Accepted, 18th May, 1895
PROVISIONAL SPECIFICATION.
Improvements in Apparatus or Arrangements for Transmitting and
Controlling the Power of Gas or Vapor or other Motors.
I, PETER BURT, of Mountblue Engineering Works, Camlachie, in the County
of the City of Glasgow, North Britain, Engineer, do hereby declare the nature of
this invention to be as follows, that is to say :-
My said invention has for its object to apply in connection with a gas, or vapor,
or other motor, improved apparatus or arrangements for the transmission and
control of the power of the motor. An important application of my invention is
for railway, or tranıway, or common-road locomotives or carriages driven by means
of gas or vapor motors; it may, however, be advantageously applied for various
other purposes.
In carrying out my invention according to one modification, I arrange the motor
to drive a crank shaft which is horizontal, and, in the case of a tramway car or
locomotive is disposed longitudinally thereon. There are two disks, one on each
side of the crank shaft, these disks being on the inner ends of transverse horizontal
shafts which are at the same level as the crank shaft; and, in the modification
being described, the crank is between the disks the motor cylinder being above
and inverted, whilst there are two flywheels on the crank shaft at opposite end
parts beyond the disks. The disks are made with single conical frictional surfaces
for being acted on by one or other of two opposite conical pulleys, which are on
sleeves or bosses on the crank shaft, being driven by means of grooves and feathers
allowing of their being moved along the shaft. A single hand lever or equivalent
is provided and arranged for acting simultaneously on both pulleys; or two or
more hand levers may be arranged at different parts of the car but so that each
may act similarly on both pulleys. A longitudinal shift of the pulleys in one
direction puts one pulley into driving contact with the disks, for moving the car
ahead, the opposite shift putting the other pulley into position for moving
backwards; whilst in the middle position of the lever and pulleys neither pulley is
in driving contact.
By suitably acting on the hand lever with less or more force, or more or less
slowly, the driver can effect the starting of the car without abruptness or jerk; and
he can also control and modify the speed communicated to the disks by varying
the contact pressure of the pulleys.
The carrying wheels of the car are according to the present invention arranged
to be driven by means of outside connecting rods, those of two wheels on one side
being jointed on a crank on one of the disk shafts, whilst those of the other side
are jointed on a crank pin on a spurwheel gearing with a spurwheel on the other
disk shaft.
In other modifications the motor apparatus may be in duplicate, the two parts
being arranged to act on cranks at opposite ends of the longitudinal shaft. Instead
of the crank shaft being longitudinal it may be transverse, and the motion may be
transmitted from the disk shafts to the car axles by bevil-wheel or worm-and-
wormwheel gearing.
Dated this Twelfth day of July 1894
EDMUND HUNT,
Applicant's Agent.

page_text: Improvements in Apparatus or Arrangements for Transmitting and
Controlling the Power of Gas or Vapor or other Motors.
I, PETER BURT, of Mountblue Engineering Works, Camlachie, in the County
of the City of Glasgow, North Britain, 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, that is to say :-
My said invention has for its object to apply in connection with a gas, or vapor
or other motor, improved apparatus or arrangements for the transmission and
control of the power of the motor. An important application of my invention is
for railway, or tramway, or common-road locomotives or carriages driven by means
of gas or vapor motors; it may, however, be advantageously applied for various
other purposes.
A mode of carrying out my invention according to one modification, is shown in
Figures, 1, and 2, on an accompanying sheet of explanatory drawings, these figures
being, respectively, a sectional side elevation and a sectional end elevation.
Figure, 3, is a diagram of a modification of the parts for connecting the driving
gearing to the carrying wheels of the carriage to which my improvements may be
applied.
In these drawings the same reference letters and numerals are used to mark the
same or like parts wherever they are repeated.
As shown in Figures, 1, and 2, of the drawings, the motor, A, which may be of
any suitable known construction, is arranged to drive a crank shaft, B, which is
horizontal, and, in the case of a tramway car or locomotive is disposed longitudinally
thereon. There are two disks C, D, one on each side of the crank shaft, B, these
disks being on the inner ends of transverse horizontal shafts, E, F, which are at
the same level as the crank shaft, and, in the modification being described, the
crank, B1, is between the disks, C, D, the motor cylinder, A, being above and
inverted, whilst there are two flywheels, G, H, on the crank shaft at opposite end
parts beyond the disks. The disks, C, D, are made with single conical frictional
surfaces, C1, D1, for being acted on by one or other of two opposite conical
pulleys, J, K, which are on sleeves or tubular bosses, J1, K1, on the crank
shaft, B, being driven by means of grooves and feathers allowing of their being
moved along the shaft, B. A single hand lever, L, the lower end of which is
forked, is provided and arranged for acting through levers, M, N, connected by a
rod, P, simultaneously on both pulleys, J, K, or two or more hand levers may be
arranged at different parts of the car but so that each may act similarly on both
pulleys. A longitudinal shift of the pulleys, J, K, in one direction puts one pulley
into driving contact with the disks, C, D, for moving the car ahead, the opposite
shift putting the other pulley into position for moving backwards; whilst in the
middle position of the lever, L, and pulleys, J, K, neither pulley is in driving
contact.
By suitably acting on the hand lever, L, with less or more force, or more or less
slowly, the driver can effect the starting of the car without abruptness or jerk;
and he can also control and modify the speed communicated to the disks, C, D, by
varying the contact pressure of the pulleys, J, K.
In the modification now being described the carrying wheels, Q, R, of the car
are arranged to be driven in a manner similar to what is described in my earlier
Patent Specification No. 7466 of 1893, motion being trausmitted from the disk
shafts, E, F, to the wheel axles, Q1, R 1, by means of sprocket wheels and pitch
chains, indicated by dotted lines in Figure, 1. A sprocket wheel, Q2, on one
axle, Q1, is acted on by a pitch chain, Q 3, directly from a sprocket wheel, Q4,

page_text: on one disk shaft, F, whilst a sprocket wheel, R2, on the other axle, R I, is acted
on by a pitch chain, R 3, from a sprocket wheel, R4, on a shaft, R 5, driven by
means of a pair of spurwheels, R 6, R 7, from the other disk shaft, E. Or the
carrying wheels of the car are, according to the present invention and as shown in
Figure, 3, arranged to be driven by means of outside connecting rods, those, S1, S2,
of two wheels (Q) on one side being jointed on a crank, S3, on one (F) of the disk
shafts whilst those, T 1, T2, of the other side are jointed on a crank pin, T 3, on a
spurwheel, R 6, gearing with a spurwheel R 7, on the other disk shaft (E).
In other modifications the motor apparatus may be in duplicate, the two parts
being arranged to act on cranks at opposite ends of the longitudinal shaft. Instead
of the crank shaft being longitudinal it may be transverse, and the motion may be
transmitted from the disk shafts to the car axles by bevil-wheel or worm-and-
wormwheel gearing.
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 combination and arrangement of parts constituting my improved apparatus
for transmitting and controlling the power of gas, or vapor, or other motors
substantially as hereinbefore described with reference to Figures, 1, and 2, of the
accompanying drawings.
2. The combination comprising a crank or first-motion shaft having movable on
it two conical pulleys or disks made with opposite conical frictional surfaces, and
arranged so that either can by means of a hand lever be put with more or less
pressure into driving contact with conical frictional surfaces on disks on two shafts
substantially as and for the purposes herein before described.
Dated this Eleventh day of April 1895.
EDMUND HUNT,
Applicant's Agent.