Improvements in and relating to Cyclometers.
Year: 1891

page_text: Date of Application, 28th May, 1891
Complete Specification Left, 27th Feb., 1892-Accepted, 9th Apr., 1892
PROVISIONAL SPECIFICATION.
Improvements in and relating to Cyclometers.
We HARRY LUCAS of the firm of J. Lucas and Son, Tom Bowling Lamp
Works, Little King Street, Birmingham, in the County of Warwickshire, Lamp
Manufacturers, and JOHN HENRY YEOMANS, Mechanic at the Works aforesaid,
do hereby declare the nature of this invention to be as follows:-
Our invention relates to an improved construction of cyclometer for use on
velocipedes, whereby we overcome many of the defects existing in the instruments
at present in use, and obtain a reliable and efficient indicator.
Our improved instrument is constructed in the following manner :-In a suitable
case of circular exterior form and having a glazed top or cap, is mounted a dial
divided and subdivided into spaces denoting suitable distances. Over this dial
travels a single hand or index which is mounted on an arbor carried in suitable
bearings. The bottom of this arbor protrudes through the bottom of the case
and is finished square to enable a watch or similar key to be fitted to it, to set
the hand or index back to zero or to any other position on the dial. This protruding
end of the dial is covered by a suitable cap. On the arbor carrying the hand or index
is mounted a large worm wheel, with which a screw or worm cut on a short spindle
mounted in bearings tangential to the case engages. On the end of this spindle
carrying the screw or worm is mounted a small worm wheel with which engages a
screw or worm cut on a spindle adapted to be operated by some moving part of the
cycle. The two spindles carrying the screws or worms, and the small worm wheel,
are enclosed in a suitable case formed on or fixed to the circular case. The spindle
carrying the screw or worm adapted to engage with the small worm wheel is
adapted to fit telescopically, for the purpose of adjustment, in a hollow spindle,
carrying at its lower end a star wheel by which motion is imparted to it by a
suitable projection mounted on, or fixed to, any suitable part of one of the
wheels of the cycle, the lower end of the spindle being carried in a suitable bearing
adapted to be attached to any convenient part of the frame of the cycle.
The circular case carrying the dial is mounted on a segmental arm capable of
being locked to the supporting bracket at any angle, so that the face of the dial
may be set at any desired angle notwithstanding the angle the supporting bracket
may assume due to its attachment to the frame of the cycle.
Datad his Dost 1
M
1001
ROBT. ED. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
70-72, Chancery Lane, London, W.C., Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in and relating to Cyclometers.
We HARRY LUCAS of the firm of J. Lucas & Son, Tom Bowling Lamp Works,
Little King Street, Birmingham, in the County of Warwickshire, Lamp Mann-
facturers, and JOHN HENRY YEOMANS, Mechanic at the Works aforesaid, 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-
Our invention relates to an improved construction of cyclometer for use on

page_text: velocipedes whereby we overcome many of the defects existing in the instruments
at present in use, and obtain a reliable and efficient indicator.
Our improved instrument is constructed in the manner shown by the accompanying
drawing in which
Figure 1. isa, broken view of our improved cyclometer and its operating
mechanism.
Figure 2 is a view in plan thereof.
Figure 3 is a view in plan of the step bearing for the operating spindle.
Figure 4 is a view. in side elevation. of the operating cam.
Figure 5 is a view inplan of the star wheel on the operating spindle..
Figure 6 is a. broken view. in elevation and. Figure 7. is a broken view in plan,
both partly in section, showing how the motion of the operating spindle is conveyed
to the arbor carrying the indicating hand..
Throughout these views similar parts are marked, with like letters of reference.
In a suitable case A of circular form and having a glazed top or cap A' is
mounted a dial divided and subdivided into spaces denoting suitable distances.
Over this dial travels a single hand or index B which, is mounted on an arbor B
carried in suitable bearings. The bottom of this arbor B₁ protrudes through the
bottom of the case A and is finished square to enable a watch or, similar key to be
fitted to it. to set, the hand or index back to zero or to any, other position on the
dial. This protruding end of the arbor is covered by a suitable cap . On
the arbor B is mounted a large worm wheel C, with which a screw. or worm d cut
on a short spindle D mounted in a bearing a formed tangentially on the case A,
engages. On the end of the spindle D is mounted a, sniall worm wheel. E. with
which, engages a screw or worm fcut on, a spindle F, adapted to be operated by
some moving part of the cycle. The small worm wheel E is enclosed in a
suitable case A formed on or fixed. to the circular case A, and it is provided with
a cap a adapted to close it. The spindle F is carried in a bearing a' formed on
the case A2 and it is prevented from moving laterally so that its rotatory motion
may. rotate the worin wheel F-by means of a dowel, pin a³ screwed into the
bearing a² and engaging with the groove in the spindle F. The spindle Fis
adapted to fit telescopically-for the purpose of adjustment-in. a hollow spindle F¹
carrying at its lower end a star wheel G by which motion is imparted to it by a
suitable projection or can I mounted on or fixed to any suitable part of one
of the wheels of the cycle. The lower end of the spindle F1 is carried in a step
bearing J adapted to be attached to the end of the axle of the steering wheel or to
any other convenient part of the frame of the cycle in any convenient manner. The
case A carrying the dial is carried by an arm A³ fulcrated to an arm K carried by
the supporting bracket K―which is preferably of the type described in Patent
No. 3054 of 1891-the two arms A³ and K being adapted to be locked together by
a screw or bolt passing through a segmental slot at in the arm A³ and threaded
into the arm K.. By this device the face of the dial may be fixed at any desired
angle, notwithstanding, the angle the supporting bracket may assume due to its
attachment to the frame of the cycle.
We wish it to be particularly understood that we do not limit ourselves to
the precise details of construction hereinbefore described and illustrated by the
accompanying drawing, but that we hold ourselves at liberty to make such changes
and alterations as fairly fall within the spirit and scope of our invention.
Having now particularly described, and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is
1. The improved cyclometer, constructed arranged and operating substantially
as hereinbefore described and illustrated by the accompanying drawing.
2. In a cyclometer the combination of a worm wheel on the arbor carrying
the recording index or hand, of a worm gearing with the said. worm wheel, of a
second and smaller worm wheel mounted on the spindle carrying the worm, and of

page_text: a second worm gearing with the second smaller worm wheel and receiving motion
from any suitable revolving part of a cycle, as set forth.
3. In a cyclometer operated through a spindle by a cam or its equivalent fixed
to the wheel or other revolving part of a cycle, the combination of an arm
attached to the case of the instrument, and of an arm attached to the clip by
which the instrument is to be fixed to the frame or other part of the machine,
fulcrated one to the other so that the instrument may be set at any desired angle,
and provided the one with a locking bolt and the other with a segmental slot
whereby the one may be locked to the other after adjustment, as set forth.
Dated this 27th day of February 1802
ROBT. ED. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicants.