IMPROVEMENTS IN Communicated to APPARATUS FOR REGISTERING THE MILEAGE OF VEHICLES
Year: 1882

page_text: "
LETTERS PATENT to John Imray of N° 28 Southampton Buildings, Chancery
Lane in the County of Middlesex for an Invention of IMPROVEMENTS IN
Communicated to
APPARATUS FOR REGISTERING THE MILEAGE OF VEHICLES
him from abroad by Fernand Bisson of Paris, France
"
PROVISIONAL SPECIFICATION left by the said John Imray at the Office
of the Commissioners of Patents on the 29th December 1882.
JOHN IMRAY of No 28-Southampton Buildings, Chancery Lane in the County of
Middlesex "IMPROVEMENTS IN APPARATUS FOR REGISTERING THE MILEAGE OF
VEHICLES [Communicated to him from abroad by Fernand Bisson of Paris,
France]
"
This invention relates to apparatus applicable to hackney carriages and other
vehicles for registering the distance travelled by them, the apparatus being so
arranged as to transmit movement from the wheel to the counter without shock,
and that only when the vehicle is going forwards, and when the counter is
purposely put in action. One of the wheels of the vehicle preferably a hind wheel
of known circumference, has fixed on its nave a pulley which by a band drives
another pulley when the band is tightened by means of a tightening roller which
can be moved by levers and cords or rods worked by a handle within reach of the
driver. When he relieves the pressure of the tightening roller, the band can slip
and the counting mechanism ceases to act. On the axis of the driven pulley is a
worm which works a worm wheel, and on this wheel is a stud which once in every
revolution causes a spring lever to oscillate and thus gives movement to a counter
connected by levers and rods to the spring lever, and situated in a part of the
vehicle where it may be conveniently visible. The spring lever is made with a
spring pawl jointed to its end, so that when the movement of the worm wheel is
reversed by the vehicle moving backwards, the pawl yields to the stud and the
The counter
spring lever is not noved, consequently the counter does not act.
may have a time piece attached to it so that the speed of the vehicle may be
observed.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Imray in the Great Seal Patent Office on the 29th June
1883.
JOHN JMRAY of No 28 Southampton Buildings Chancery Lane in the County of
Middlesex IMPROVEMENTS IN APPARATUS FOR REGISTERING THE MILEAGE OF
VEHICLES A communication to me from Abroad by Fernand Bisson of Paris,
France
"
This invention relates to apparatus applicable to hackney carriages and other
vehicles for registering the distance travelled by them, the apparatus being so
arranged as to transmit movement from the wheel to the counter without shock,
and that only when the vehicle is going forwards, and when the counter is
purposely put in action. One of the wheels of the vehicle preferably a hind wheel
of known circumference, has fixed on its nave a pulley which by a band drives
another pulley when the band is tightened by means of a tightening roller which
can be moved by levers and cords or rods worked by a handle within reach of the
driver. When he relieves the pressure of the tightening roller, the band can slip
and the counting mechanism ceases to act. On the axis of the driven pulley is a
worm which works a worm wheel, and on this wheel is a stud which once in every
revolution causes a spring lever to oscillate and thus gives movement to a counter
connected by levers and rods to the spring lever, and situated in a part of the
vehicle where it may be conveniently visible. The spring lever is made with a
spring pawl jointed to its end, so that when the movement of the worin wheel is
reversed by the vehicle moving backwards, the pawl yields to the stud and the
spring lever is not moved, consequently the counter does not act. The counter
may have a time piece attached to it so that the speed of the vehicle may be
observed
Fig. 1 of the accompanying drawings shews an elevation of the before described
mechanism, Fig. 2 a plan, Fig. 3 an end view, and Fig. 4 shews the apparatus applied
to a carriage.
One of the wheels A, by preference a hand wheel, carries a pulley B connected
by a cord, strap or chain C with a second pulley D revolving on an axis a fixed
on a suitable support E. The pulley D has a worm, b gearing with the worm
wheel c carried between cheeks d d. This wheel c transmits the movement to the
counter situated for example at X, Fig. 4, by means of a stud e which when the
wheel turns in the direction of the arrow f. acts upon the back of the hinged spring
finger g, and thus carries with it the lever to which g is connected. The lever is
not actuated when the wheel c turns in the contrary direction, that is to say, when
the vehicle moves backwards. The lever which is drawn back by a spring ?,
acts upon an elbow lever which, by means of intermediate gear 7 m in the vehicle
actuates the counter X. The cord or strap C is stretched by means of a stretching
pulley n situated between the cheeks of an elbow lever o that can be raised or
lowered by means of lever p and hand lever q 8.
The whole mechanism is enclosed
in a box which protects it from dust and dirt.
Fig. 5 shews a modified arrangement in which as in the previous arrangement, a
worm bis actuated by the pullies B, D, and cord C and drives a worm wheel c
carrying the stud e. This stud acts on the lever h and thus actuates the cord that
connects the mechanism with the counter situated at X.
arrangement drawn back by a blade spring 7.
The lever h is in this

page_text: Figs 6 and 7 shew an elevation and plan of another modification, in which the
wheel A carries a toothed wheel J gearing with a second wheel K which transmits
the motion to the worm b on the same axis, and which actuates a wheel chaving
four studs e. These studs consecutively act upon the pivotted spring finger of the
lever which is drawn back by the spring r, and the motion of which is
transmitted to the counter.
As the counter must only be actuated when persons are in the carriage and as
on the other hand it must be automatically put in action when a person enters,
the mechanism is put in and out of gear, by the arrangement shewn at Fig. 5,
where springs y y are arranged below the seat and below the floor board, which are
loose and pivotted as shewn, and which are consequently raised by the springs
when not loaded; a pulley x is fixed to the under side of the floor board, which
when this is depressed by the entrance of a person bears against the cord x' which
acts on the tightening pulley of the endless cord or band actuating the mechanism.
This apparatus is applicable to all descriptions of vehicles propelled by rotary
motion, whether by land or by water.
Having thus described the nature of this invention and in what manner the same
is to be performed, as communicated to me by my foreign correspondent, I claim in
respect of apparatus for registering the mileage of vehicles :-
First. The described mode of transmitting the motion of the road wheels to the
registering apparatus by means of a worm and worm wheel, so as to avoid shocks.
Second. The described arrangement wherein the stud of a revolving wheel is
made to act on the pivotted spring finger of a lever so that the motion in the
contrary direction of the stud will not actuate the lever.
Third. Effecting the throwing in and out of gear of the registering mechanism
by means of a tightening pulley to the endless driving cord or band, which pulley
is actuated either by means of a hand lever from the driver's seat or automatically,
substantially as herein described.
Fourth. The construction of apparatus for registering the mileage of vehicles
combined and operating as herein described with reference to the accompanying
drawings.
In witness whereof I the said John Imray have hereunto set my hand and
seal this Twenty-eighth day of June in the year of our Lord One thousand
aight hundred and nighty three