IMPROVEMENTS IN APPARATUS FOR COUNTING AND REGISTERING THE TIME OCCUPIED, THE DISTANCE
Year: 1875

page_text: LETTERS PATENT to Friedrich Wilhelm Nedler, Teacher of Music, of
Berlin, Prussia, for the Invention of "IMPROVEMENTS IN APPARATUS
FOR COUNTING AND REGISTERING THE TIME OCCUPIED, THE DISTANCE
PROVISIONAL SPECIFICATION left by the said Friedrich Wilhelm
Nedler at the Office of the Commissioners of Patents, with his
Petition, on the 1st May 1875.
I, FRIEDRICH WILHELM NEDLER, Teacher of Music, of Berlin,
Prussia, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN APPARATUS FOR COUNTING AND REGISTERING THE TIME
OCCUPIED, THE DISTANCE TRAVELLED, AND THE FARES IN CABS AND OTHER
VEHICLES," to be as follows:-
On the nave of one of the wheels I mount a cam or eccentric, which
for each revolution communicates reciprocating motion to a lever, which
by pawl and ratchet gear works a counter, or the cam or eccentric may
receive motion by a friction pulley driven by the nave of the wheel and

page_text: held in contact therewith by means of a spiral spring. A flap inside
the vehicle is depressed when the passenger takes his seat, and by lever
connection the aforesaid lever actuating the counter is thereby thrown
into contact with the cam.
The counter proper is constructed as follows:-The aforesaid pawl
and ratchet. gear actuates a hollow sleeve on the dial hand spindle by
worm and worm wheel and pawl wheel gear. The said sleeve also
carries a spur wheel gearing into a wheel loose on the spindle of a fusce
box and timed by an escapement; if the movement of the former spur
wheel is quicker than that of the latter it will drive it at the same rate,
but without interfering with the fusee; the hollow sleeve on the dial
spindle is thus driven both from the carriage and from the fusec, but
both being independent from one another. By a "lathe carrier" motion
is transmitted from the hollow sleeve to the dial spindle running loose
in it and carrying a spur wheel. The dial and a dial ring in front of it
have corresponding divisions.
The spur wheel on the dial spindle drives two pinions, each carrying
a small dial with Figures on; one indicates through an aperture in the
large dial the number of revolutions of the large hand on the large dial,
and hence the corresponding fare to be paid, and the other likewise
through an aperture in the large dial the total number of turns of the
large dial hand as a check for the master to control the money received
for all the fares; the aforesaid dial ring notes the amounts payable for
the difference between the last complete revolution of the hand from
the zero point and the sector space on the dial passed over.
A stud on a pawl wheel on the dial spindle and a stud on the small
dial wheel for indicating the fares to the passenger regulate the placing
of both on to the zero point again after each fare. The other small dial
wheel is loose on its spindle and placed between two pawl wheels held
respectively by a pawl on the large dial spindle pawl wheel, and a pawl
on the small dial wheel now last mentioned which has the office by its
pawl to bring the two adjoining wheels back which are held by the
pawl on the large dial spindle pawl wheel, and thus indicate to
the carriage owner the total fares; this small dial spindle has a knob for
him to turn it by and bring it back to zero. The large dial spindle pawl
wheel is loose on its spindle and held by a spiral spring, the other
end of which is attached to a boss on the spindle, and the more the

page_text: latter is turned the more this spring will be tightened, but when the
pawl is let go from the teeth of the wheel by means of a detaching rod,
the wheel will take its normal position; this detaching rod has a tooth
which takes into the pawl wheel and pulls it and the hand so far back
as the fare is to be.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Friedrich Wilhelm Nedler in the Great Seal Patent
Office on the 30th October 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, FRIEDRICH
WILHELM NEDLER, Teacher of Music, of Berlin, Prussia, send
greeting.
.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the First day of May, in the year of
our Lord One thousand eight hundred and seventy-five, in the
thirty-eighth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Friedrich Wilhelm Nedler,
Her special licence that I, the said Friedrich Wilhelm Nedler, my
executors, administrators, and assigns, or such others as I, the said
Friedrich Wilhelm Nedler, my executors, administrators, and assigns,
should at any time agree with, and no others, from time to time
and at all times thereafter during the term therein expressed, should
and lawfully might make, use, exercise, and vend, within the United
Kingdom of Great Britain and Ireland, the Channel Islands, and Isle
of Man, an Invention for "IMPROVEMENTS IN APPARATUS FOR COUNTING AND
REGISTERING THE TIME OCCUPIED, THE DISTANCE TRAVELLED, AND THE FARES IN
CABS AND OTHER VEHICLES," upon the condition (amongst others) that I, the
said Friedrich Wilhelm Nedler, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands and
seals, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
.

page_text: calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Friedrich Wilhelm Nedler, do
hereby declare the nature of my said Invention, and in what manner
the same is to be performed, to be particularly described and ascer-
tained in and by the following statement, reference being had to the
accompanying Drawings, and to the letters of reference marked thereon,
that is to say:-

page_text: cam K is turned away from the lever L and the lever E is free again,
and the lever D, thus by reason of the pressure of the springs G and F
brought in contact with the cam A putting the apparatus to work
again.
Figs. 4 and 5 show the cam on a friction roller instead of on the
wheel boss itself in order to adapt the apparatus to carriages with
different size wheel bosses. The ring M on the nave actuates by
friction the roller N and the cam, the action on the lever B being as
before. The roller N runs in a fork O which is suspended from a
bracket P fastened to the hind axle by means of a spring; it is constantly
pressed against the ring on the wheel boss as to be in constant contact
during rotation.
•
Sheet 2 represents the counter proper; Fig. 1 is a vertical cross
section on line A, B, Fig. 2; Fig. 2 is a front elevation; Fig. 3 is a
central vertical cross section; Fig. 4, a back view or section C, D,
Fig. 3, with back plate or cover removed; Fig. 5, a section on line E, F,
of Fig. 6; Fig. 6 is a plan section; Fig. 7 is a section on line G, H,
Fig. 5, the dial being removed, and Fig. 8 is a vertical section through
line I, K, Fig. 7.
The ratchet a already referred to on Sheet 1 is worked by the lever D,
the ratchet a is loose on the pin a², Figs. 3 and 4, and works the pawl
wheel b' which is fixed on the spindle b; the spring c brings the ratchet
back and the spring d prevents the pawl wheel from going back. The
worm wheel e is loose on the hollow spindle or sleeve e¹ on the dial
hand spindle m and transmits motion to the pawl wheel f, which by the
carrier or pawl g is united to the spur wheel f¹; as the wheels ƒ and ƒ¹
are fixed on the hollow spindle e¹, this latter is also moved, Figs. 1, 3,
4, and 6. The spur whicel h above and gearing with the spur wheel f¹
is connected to the pawl wheel h³, and turns according to the time of a
lever escapement. The wheels and are loose on the spindle of a
fusee box i', the movement of which is transmitted to hand h by the
pawl j. Iff moves quicker than / then the former will drive the latter
but without interfering with the fusee. It is thus clear that the
wheel f¹ and the hollow sleeve e¹ are driven by the movement of the
ratchet a (from the carriage) as well as that of the fusee, but both being
independent of one another, Figs. 3 and 4. The carrier is fixed on
the sleeve e¹ and takes into the sector 7; the latter is united to a pawl

page_text: wheel
and is fixed on the dial spindle m which is loose in the sleeve c¹,
and together with the wheel runs in a cross bar or bracket n. The
carrier & thus actuates the dial hand m on the main dial o, Figs. 1, 2,
and 3. The divisions of the dial o correspond with those of the
stationary ring o¹.
The pinion p on the dial hand spindle moves a wheel p¹ carrying a
small dial for indicating the number of turns of the hand on the large
dial, and the fares corresponding thereto; but the pinion p also moves
on the wheel q the control appliance for the owner of the vehicle which
indicates all the prices for the revolutions of the hand, while on the fixed
control ring o', the prices between the last whole dial hand revolution
from zero to the traversed portion of the dial circle may be read off.
By means of the notches q¹ in the dial both become visible, Figs. 2,
and 6.
The stud on the pawl wheels on the dial spindle, and the stud ¹ on
the small dial wheel p¹ regulate the placing the dial on p', and the main
dial o on to the zero point again after each fare, Figs. 5, 6, and 7; the
whiccl q shown in front elevation at Fig. 5, for the control of the owner
is loose between the wheels and u fixed on a spindle and held and
guided by the pawls & and t, and has the office to bring the wheels t¹
and u back by the pawl t; the wheels are on the return of the wheel q
held by the pawl's¹ which is fixed on the large pawl wheel 8, and thus
indicates to the owner the total fares due to the path traversed by the
dial hand; the small dial spindle of the wheels q, t, u, has a square u¹ for
him to turn it by by means of a key and bring the small dial on t¹ back
to zero, Figs. 2 and 6. The wheels p' and q, t, u, with their common
pinion p move between the pawl wheels and the dial o, Figs. 1, 3, and 6;
the dial o is loose on the dial hand spindle m, and held by a spiral
spring v, the other end of which is attached to the boss of the sector /
on the spindle; during the rotation of the dial hand the dial o is held by
the pawl y and spring; the more the spindle m is turned the more the
spiral spring will be tightened, but when the pawl is let go from the
teeth of the pawl wheels by means of a detaching rod w the wheel will
take its normal position, Figs. 1, 3, 5, 6, 7, and 8. When the rod w
rises the drag lever w¹ connected to it also rises, and when the rod w
goes down the lever w¹ takes into the teeth of the wheel 1, turning it a
little as well as the dial spindle m and hand m, that is, so much as the
fare is fixed to. The position of the sector is after the pull drawn

page_text: away from the carrier k; the sector will remain in this position till the
carrier in its movement comes in contact with it, Figs. 1, 3, 6, and 8.
The brake lever x is also raised by the rod wo even before the pawl y is
lifted by. it, whereby it falls into the teeth of the wheel A, and thus
prevents the wheels p and q from dragging the dial spindle with them,
Figs. 1, 3, 6, 7, and 8.
By the upward movement of the detaching rod w when the carriage
is without a passenger or the coachman rides alone, the rod y' which
has a strip of flexible steel is pressed against the escapement lever ≈ of
the time measurer or clockwork, and brings the latter to a stop Figs. 3,
4, 6, and 7. The rod w then by its upward movement lifts the lever w³,
presses the brake lever x in the teeth of the wheel 7, raises the pawl y,
and thereby stops the clockwork. The lever w obtains its upward
movement from the double lever L, Sheet 1, when the inner part of the
carriage is barricaded by the cam K, Sheet 1. The double lever L at the
same time brings the lever B out of contact with the wheel nave, Figs. 1,
2, and 3, Sheet 1. When the double lever L, Sheet 1 (by reason of the
flap H being let down) does not actuate the detaching rod w, then the
spiral spring, Figs. 3 and 8, draws the detaching rod w and the
lever back into the normal position, and the pawl y can then again
take into the pawl wheels which is connected to the dial o, and holds it
during the movement of the hand.
In witness whereof, I, the said Friedrich Wilhelm Nedler, have
hereunto set my hand and seal, this Twenty-fifth day of October,
in the year of our Lord One thousand eight hundred and seventy-
five
WILHELM FRIEDRICH NEDLER. (L.S.)