IMPROVED MEANS AND APPARATUS FOR DRIVING BOGIE AXLES OF LOCOMOTIVE VEHICLES
Year: 1880

page_text: LETTERS PATENT to Joseph Apsey, of No. 22, Waterloo Bridge Road,' in the
County of Surrey, for an Invention of "IMPROVED MEANS AND APPARATUS FOR
DRIVING BOGIE AXLES OF LOCOMOTIVE VEHICLES."
"
PROVISIONAL SPECIFICATION left by the said Joseph Apsey at the Office
of the Commissioners of Patents on the 1st June 1880.
JOSEPH APSEY, of No. 22, Waterloo Bridge Road, in the County of Surrey.
IMPROVED MEANS AND APPARATUS FOR DRIVING BOGIE AXLES OF LOCOMOTIVE
VEHICLES."
In locomotive vehicles for trainways and other purposes it is often necessary to
provide for the locking of one or more of the driving axles, that is to say, to permit
them as bogie axles to take attitudes of various degrees of obliquity to the body
of the vehicle, so as to allow it to run freely along curves. At the same time it is
often inconvenient to mount on a bogie the engine which works these axles. My
Invention relates to means and apparatus whereby 1 am enabled to drive axles
that can lock as bogie axles to various degrees of obliquity from an engine shaft
which retains a constant position relatively to the vehicle. For this purpose I
mount on a horizontal axis on a bogie frame a toothed wheel, which I support
between cheeks so as to leave the middle part of the wheel open, and I gear to this
wheel one or more driving axles which are mounted on the same bogie frame, so
that when the bogie frame with its axles is turned round its perch pin to various
degrees of obliquity the toothed wheel turns therewith. Through the centre of
this wheel I pass freely the horizontal shaft that is to impart motion to it, this
shaft being mounted in stationary bearings so that it does not turn with the bogie
frame. On this driving shaft I fix at each side of the toothed wheel and clear
therefrom crank arms, which are connected by crank pins that pass through the
toothed wheel at some distance from its centre. Each crank pin is fitted to slide
in the direction of its length in a ball which works in a socket that is fitted to slide
radially in a slot in a toothed wheel. Thus, when the driving shaft is caused to
revolve it causes the wheel also to revolve, notwithstanding that the axis of the
wheel may be at various degrees of obliquity to that of the driving shaft, this being
permitted by the sliding and turning movements of the ball jointing. The
arrangement may be inverted, that is to say, the wheel may be held in stationary
cheeks, and driven from the engine, and the axle which it drives may be mounted
on & bogie frame; this axle passing through the wheel and being driven by crank
pins passing through the sliding balls in the wheel, as above described.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Joseph Apsey in the Great Seal Patent Office on the 29th
November 1880.
JOSEPH APSEY, of No. 22, Waterloo Bridge Road, in the County of Surrey.
"IMPROVED MEANS AND APPARATUS FOR DRIVING BOGIE AXLES OF LOCOMOTIVE
VEHICLES."
gear
I
In locomotive vehicles for tramways and other purposes it is often necessary to
provide for the locking of one or more of the driving axles, that is to say, to permit
them as bogie axles to take attitudes of various degrees of obliquity to the body of
the vehicle, so as to allow it to run freely along curves. At the same time it is
often inconvenient to mount on a bogie the engine which works these axles. My
Invention relates to means and apparatus whereby I am enabled to drive axles
that can lock as bogie axles to various degrees of obliquity from an engine shaft
which retains a constant position relatively to the vehicle. For this purpose
mount on a horixontal axis on a bogie frame a toothed wheel, which I support
between cheeks so as to leave the middle part of the wheel open, and I to
this wheel one or more driving axles which are mounted on the same bogie frame,
so that when the bogie frame with its axles is turned round its perch pin.to various
degrees of obliquity the toothed wheel turns therewith. Through the centre of
this wheel I pass freely the horizontal shaft that is to impart motion to it, this
shaft being mounted in stationary bearings so that it does not turn with the bogie
'frame. On this driving shaft I fix at each side of the toothed wheel and clear
therefrom crank arms which are connected by crank pins that pass through the
toothed wheel at some distance from its centre. Each crank pin is fitted to slide
in the direction of its length in a ball which works in a socket that is fitted to slide
radially in a slot in the toothed wheel. Thus, when the driving shaft is caused to
revolve it causes the wheel also to revolve, notwithstanding that the axis of the
wheel may be at various degrees of obliquity to that of the driving shaft, this being
permitted by the sliding and turning movements of the ball jointing. The
arrangement may be inverted, that is to say, the wheel may be held in stationary
cheeks and driven from the engine, and the axle which it drives may be mounted
on a bogic frame; this axle passing through the wheel and being driven by crank
pins passing through the sliding balls in the wheel, as above described.
DESCRIPTION OF THE DRAWINGS.
Figs. 1 and 2 are respectively transverse and longitudinal sections partly in
elevation, and Fig. 3 is a plan, partly sectional, of a four wheeled bogie with
driving gear according to my Invention; a, a, are the two running axles of the
bogie with their wheels a', these axles working in bearings in the horn plates a².
These born plates extend down from the turning frame as, which can turn on the
underface of the fixed plate 62. From this plate b brackets 6 extend down
through slots in the turning frame a³ to carry the driving shaft b, which is driven
by cranks or otherwise from the engine. The brackets b₁ where they pass through
the slots of the frame a form stops to prevent the bogie being locked or turned
beyond a certain angular range in either direction. On the shaft bare fixed the
crank arms b³ connected by round pins b. The driving wheel c which gears with
wheels a on the axles a is fitted to revolve between checks c' that are bracketted

page_text: balls, through the centres of which pass the crank pins 6. The balls being free
to slide along the crank pins and also to turn within the blocks c² which are free
to slide radially, the rotation of the driving shaft is communicated to the wheel c,
and from it by the gearing wheels a to the axles and road wheels, notwithstanding
the variable angular positions of the bogie with relation to the shaft b. The
arrangement of the mechanism may obviously be inverted, as a might be a driving
shaft and b might be a bogie axle driven from it. I have shewn two crank pins b
with their balls and slide blocks; one however would suffice, but two are to be
preferred for better equalising and distributing the driving strain.
There might
also be a number greater than two when there is sufficient room in the wheel c for
accommodating additional slide blocks. I have also shewn the axles driven from
the central wheel by toothed gearing; for this obviously a connection by bands or
pitch chains might be substituted.
Having thus described the nature of my Invention, and in what manner the
same is to be performed, I claim,―
Driving bogie axles of a locomotive vehicle from a shaft stationary in position
on the vehicle by means of a universal joint consisting of crank pins fitted to slide
longitudinally in turning and transversely sliding joints in a wheel, so as to allow
for the wheel while it revolves to take positions more or less inclined to the axis of
the shaft, substantially as herein <described.
In witness whereof, I, the said Joseph Apsey, have hereunto set my hand
and seal, this Twenty seventh day of November, in the year of our Lord
One thousand eight hundred and eighty.
JOSEPH APSEY. (L.S.)