Year: 1897

page_text: This Print is in accordance with the Original Specification as it stands after
Amendment (under Section 11 of the Patents, &c., Act, 1883), as required by
the decision of the Comptroller General of the 1st day of December 1897.
Date of Application, 15th Jan., 1897
Complete Specification Left, 6th Apr., 1897- Accepted, 1st May, 1897
I, THOMAS GIBSON, of 26 Galveston Road, East Putney, in the County of Surrey,
do hereby declare the nature of this invention to be as follows:-
In ticket punches such as are commonly used in omnibuses or tramcars, register-
ing mechanism is provided to record the number of tickets which have been
marked by the punch. In such apparatus it is necessary that means should be
provided to prevent the operation of the registering mechanism unless a ticket bo
actually punched.
For this purpose, I provide a locking wheel upon the axis of the first wheel of the
registering train and a pawl which normally engages with the teeth of the locking
wheel and prevents it from turning. The pawl has a tail piece which projects-up
into the jaw into which the ticket is inserted when it is required to be punched.
The ticket when in the jaw displaces the tail of the locking pawl and allows the.
registering train to operate when the punching lever is depressed. Except when
a ticket is so placed in the jaw the registering train cannot be driven by the
punching lever, and the other parts of the mechanism are prevented from operating.
Dated this 15th day of January 1897.
THOMAS GIBSON.
I, THOMAS GIBSON, of 46 Galveston Road, East Putney, in the County of Surrey,
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 follow-
ing statement:-
In ticket punches such as are commonly used in omnibuses or tramcars, register-
ing mechanism is provided to record the number of tickets which have been punched
by the punch. In such apparatus it is necessary that means should be provided to
prevent the operation of the registering mechanism unless a ticket be actually
punched.
For this purpose, I provide a locking wheel upon the axis of the first wheel of the
registering train and a pawl which normally engages with the teeth of the locking

page_text: wheel and prevents it
om turning. The pawl has a tail piece which projects up
into the jaw into which the ticket is inserted when it is required to be punched.
The ticket when in the jaw displaces the tail of the locking pawl and allows the
registering train to operate when the punching lever is depressed. Except when
a ticket is so placed in the jaw the registering train cannot be driven by the
punching lever, and the other parts of the mechanism are prevented from operating.
Figure 1 of the drawings annexed shows a ticket punch to which my invention
is applied. Portions of the casing are removed so that the interior mechanism is
exhibited; other parts of the casing and the receiver for the clippings are indicated
by dotted lines.
Figure 2 is similar to Figure 1 but with the parts in another position.
a and b are the upper and lower jaws between which the ticket to be punched
is inserted. c is the punch lever, it is moveable round a centre at c' and the punch c
is jointed to it. The punch ca is slotted or grooved at the back as shown in
figures 3. The lever also has jointed to it at a pusher d and a catch e the first
operates upon the teeth of a wheel f and moves it the space of one tooth each time
that the punch lever fully depressed. The wheel f is first of a train of counting
wheels the other
are shown at ggg. hh are springs which entering
between the teeth of the counting wheels prevent accidental movement. The
teeth of the wheelf also operate to ring the bell i. The catch c by engaging with
a stud on the case serves to prevent the return of lever c until the ticket is recorded
and the bell is rung.
The parts which so far I have named with reference to the drawings are those
of a well known type of ticket punch; the new parts to which my invention relates
are the toothed wheel k which is fast with the wheel f and the lever arms and m
which are fast with the pivot or axis n. There is also a spring o which draws the
inwards and tends to draw the arm inwards towards the teeth of the wheel k.
The spring also tends to press the arm m forward so that it enters between the
jaws a and b and into the punch c².
arm
Figure 1 shows the parts in the position they occupy when a ticket p is inserted
between the jaws and is in a position to be punched; the arm or tail piece m is
forced back by the edge of the ticket and the locking pawl or arm is so removed
out of the way of the teeth of the wheel k.
Figure 2 shows the parts in the position they occupy when the lever c is partially
depressed as far as it can be without the insertion of a ticket between the jaws. It
will be seen that the pawl or arm is in contact with the teeth of the wheel k and
the pusher p is in contact with the teeth of the wheelf so that any further down-
ward movement of the lever c is prevented; the counting wheels cannot be turned
nor can the bell be rung.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is:
1. In combination with a ticket punch locking appliances substantially as des-
cribed which are freed by the insertion of a ticket between the jaws.
2. In combination with a ticket punch, the wheel & fast with the first wheel of
the counting train, the pawl like arm /, the arm or tail piece m, and the pivot n,
substantially as described.
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