Improvements in Speed Indicators or Pacing Instruments and Distance Indicators for Cycles and the like.
Year: 1895

page_text: Date of Application, 21st Nov., 1895
Complete Specification Left, 21st Sept., 1896-Accepted, 24th Oct., 1896
PROVISIONAL SPECIFICATION.
Improvements in Speed Indicators or Pacing Instruments and
Distance Indicators for Cycles and the like.
I WILLIAM NICHOLLS, Gentleman, of 23 Holborn, in the County of London,
do hereby declare the nature of this invention to be as follows :-
This invention for improvements in speed indicators or pacing instruments and
distance indicators for cycles and the like has for its object to enable the user to
know at any particular time the rate at which he is covering the ground or how
much he is losing or gaining on the rate for which the apparatus is set aud also if
desired to enable the user to know the total distance covered and also the time of
day, and consists of a clock mechanism, a pointer driven at a predetermined rate
by the clock mechanism, a pointer rotated about the same axis as the clock
pointer and geared to a rotating part of the cycle so that at a certain predetermined
speed it moves at the same rate as the clock pointer. The clock pointer is
preferably arranged to make one complete revolution in a minute and the speed
pointer geared so as to make one complete revolution in a minute when the
speed is at a certain rate say ten, fifteen, or twenty miles an hour. The apparatus
may be fixed on any convenient part of the cycle so that it can be under constant
observation. If desired the milometer or speed mechanism may be driven by a
spring and be controlled by an escapement operated by a pneumatic action or
otherwise from the rotating part.
It will be readily understood that as a pacing instrument the users endeavour
is to make the speed pointer overtake the clock pointer and when overtaken to
gain a revolution on it. The speed is determined by the amount lost or gained in
a revolution of the clock pointer.
Dated this 21st day of November 1895.
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.
Improvements in Speed Indicators or Pacing Instruments and
Distance Indicators for Cycles and the like.
I, WILLIAM NICHOLLS, Gentleman, of 23 Holborn, in the County of London,
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:-
This invention for improvements in speed indicators or pacing instruments and
distance indicators for cycles and the like, has for its object to enable the user to
know at any particular time the rate at which he is covering the ground or how
much he is losing or gaining on the rate for which the apparatus is set and also, if
desired, to enable the user to know the total distance covered and also the time of
day, and consists of a clock mechanism, a pointer driven at a predetermined rate
by the clock mechanism, a pointer rotated about the same axis as the clock pointer

page_text: and geared to a rotating part of the cycle so that at a certain predetermined speed
it moves at the same rate as the clock pointer. The clock pointer is preferably
arranged to make one complete revolution in a minute and the speed pointer is
geared so as to make one complete revolution in a minute when the speed is at a
certain rate say, ten, fifteen, or twenty miles an hour. The apparatus may be
fixed on any convenient part of the cycle so that it can be under constant observa-
tion. If desired the milometer or speed mechanism may be driven by a spring
and be controlled by an escapement operated by pneumatic action or otherwise
from the rotating part.
In the accompanying sheet of drawings:
Fig. 1 is a front elevation of an indicator constructed according to this inven-
tion, having a part of the outer face removed in order to show the interior thereof
and Figs. 2 and 3 are cross sections of Fig. 1 on planes at right angles to each
other.
A star wheel a on a driving spindle bis driven from any convenient moving part
of the machine, such as the front wheel, and communicates its motion through a
train of wheels c to three pointers d traversing the dial e. The wheel train and
the pointer connections are so proportioned that the long pointer indicates miles
while the other two indicate tens and hundreds of miles respectively. By these
means the total distance travelled is indicated.
A clock is provided to indicate the time and also to drive the pointer g
forming a part of the pacing mechanism and whose motion is constant making,
preferably, one revolution a minute over the dial h. A pacing pointer i is
connected to a disc or crown wheel having a series of toothed circles m of
different radii either of which circles may be caused to gear with a pinion n driven
from the spindle b through suitable reducing gear as shown. The spindle d
carrying the pinions n p is mounted in a frame 7 capable of being slid across the
face of the disc or crown wheel 7 by means of the racks and pinions & so as to
bring the pinion n into gear with any desired circle of teeth m and thereby vary
the relative motion of the spindle band pointer i. The pinion t is free to slide
along the spindle b to accommodate itself to the position of the pinion p as will be
readily understood.
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. In a combined speed indicator or pacing instrument and distance indicator, a
toothed disc or crown wheel carrying a pointer and having a series of circles of
teeth with either of which a driving pinion is caused to gear substantially as
described and for the purpose set forth.
2. The means for adjusting the driving pinion to gear with any circle of teeth
in the pacing crown wheel comprising a frame carrying the driving pinion spindle
and being capable of being slid across the face of the said crown wheel by means
of rack and pinion gear, substantially as described.
3. The pacing crown wheel and driving gear for operating the pacing pointer in
combination with the clock driven time pointer, substantially as described.
4. The combination of parts constituting my improvements in speed indicators
or pacing instruments and distance indicators for cycles and the like, the whole
arranged, constructed and operating substantially as described in the foregoing
specification and illustrated in the drawings hereunto annexed.
Dated this 21st day of September 1896
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.