Improvements in Cyclometers or Appliances for Measuring and' Recording Distances Traversed by Wheels.
Year: 1894

page_text: Date of Application, 14th Oct., 1894-Accepted, 27th Apr.. 1895
COMPLETE SPECIFICATION..
Improvements in Cyclometers or Appliances for Measuring and'
Recording Distances Traversed by Wheels.
I JOHN BRIERLEY HOWARD, of Penny Bank Chambers, Halifax in the County.
of York, Patent Ageut, do hereby declare the nature of this invention, which has
been communicated to me by Karl Keyssner Machine Maker, and Ernest
Hessdorfer Merchant both of Nürnberg in the Empire of Germany, and in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement:-
This invention relates to cyclometers, or apparatus for measuring and indicating
the distance traversed by cycles, and other wheeled vehicles, the apparatus being
so constructed that the size of wheel which influences the counter wheel is
immaterial. The invention consists in rotating a roller bearing a certain proportion
to the gearing, so that not the number of rotations of the wheel but the distance
traversed is indicated by means of hauds upon a dial, and it is immaterial whether
the roller of the counter is rotated direct from the ground or by one of the wheels
of the vehicle.
The aunexed drawings represent the improved apparatus in which:-
Fig. 1. is a side elevation of the apparatus and clip fastener suitable for
attachment to the fork of a bicycle.
Fig. 2. is a plan view of Fig. 1.
Fig. 3. is an elevation partly in section shewing the gearing.
Fig. 4. is a vertical section of Fig. 3.
Fig. 5. is a side elevation of the apparatus shewing the gear.
b
According to this invention the instrument is screwed tightly on the fork of the
main wheel, or other part of the vehicle and above the wheel tyre, by means of a
bar a so that the roller b bears upon the tyre c. In order to facilitate adjustment
of the roller upon the middle part of the tyre c the bar à is cranked. At e is a
casing to which the bar a is secured and which serves as a shell for the axis g of the
roller b, on the former of which is a worm f. The worm fjuts through a notch into
the inside of the case d, and gears with a worm wheel on axis of which is a gear
wheel i, which acts upon an intermediate gear wheel on the axis k, from which the
rotation is transferred to an axis l, upon which the first band Z' is fixed. By gear
wheel m upon the axis the rotation of the latter is, through another gear-wheel
transmitted to a second hand Z2, ou a long collar and from this one a further hand is
influenced by any of the well known methods. The hand Z' indicates the distance
passed by yards and the hands Z3, Z by miles. A hand Z, that may be fixed by
means of a key serves for marking the position of the hand when commencing the
journey, in order that the hand does not always require to be set at zero.
The
roller must have a certain diameter, so that its circumference combined with the
proportions of teeth in the gear wheel as far as band Z' will give one mile. The
dial is divided so as to represent the distance traversed in miles and yards.
On reference to Fig 5 it will be seen that the index-finger Z is carried upon
the axis; the index-finger Z is carried upon the boss or collar a free to turu on
the axis ; the index-finger Z is carried upon the boss or collar o, turning on the
boss or collar n. The marking index-finger Z is carried upon a boss or collar p,
which is fixed upon the boss or collar v. The boss or collar p is fixed to a tooth-
wheel', which gears with and is driven by the tooth-wheel ". The toothed-wheel r
is fixed upon the axis 8, and can be set by the key t. The index-finger Z serves

page_text: only for marking the starting point of Z. The position of the index-fingers Z'
and Z³ must be noted before starting.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, 1 declare that what I
claim is :-
The improved apparatus comprising and in combination a roller b, the circum-
ference of which bears a certain proportion to the wheel-gearing, and bears upon
the wheel tyre c, and is rotated during the turning of the latter, and the rotations
of axis g of the roller are transmitted by means of a worm f, and the gearing to the
hands, so that the distance traversed is recorded and can be read off as and when
required.
Dated this 13th day of October 1894.
JOHN BRIERLEY HOWARD,
Penny Bank Chambers, Halifax, Applicant.