Improvements in Ticket Punches.
Year: 1894

page_text: Improvements in Ticket Punches.
I, JOHN SMITH COMRIE of 7 and 8 Great Winchester Street in the City of
London, Civil Engineer do hereby declare the nature of my said invention to be as
ollows:
This invention relates to further improvements in the construction of ticket
punches such as described in the Specification of Letters Patents No. 14,694
of 1886, No. 19,356 of 1890 and No. 6430 of 1892. In the Specification of
Letters Patent No. 19,356 of 1890 I have shown and described means for
connecting the driving pawl and the arm or check pawl which prevents the return
of the lever at "half stroke." I have also shown how these two parts may be
operated by a single spring. I now further simplify and improve this part of the
mechanism as follows:-
I dispense with the check pawl, dog or arm, and lengthen the driving pawl, the
extension of the driving pawl is so constructed as to engage with the lock plate in
substantially the same manner as the check pawl; in order to facilitate this, I
prefer to raise the lock plate somewhat, and to place the tooth working therein on
the underside of the extension of the driving pawl. A suitable spring, preferably
of coiled wire is provided for this pawl.
In order further to simplify the whole apparatus, I dispense with the stop wheel
hitherto used and fixed on the same spindle with the driving wheel. I also
dispense with the pawl or pawls connecting with the pin. I may rely on the
stop bar K. described in the Specification of Letters Patent No. 6,430 of 1892,
and shown in Figure 2. of the same, to prevent operation of the punch when a
ticket is inserted.
I also further cheapen the construction and reduce the number of parts by
arranging a stop bar as follows:-
Instead, of using the stop bar K. (described in the Specification of Letters
Patent No. 6,430 of 1892 as stated) I provide a stop bar close to and behind the
pin which moves in the punch. This stop bar is hinged to the operating lever, of
the apparatus and a spring tends to keep it in constant contact with the pin.
Now if there is no ticket in the slot and the lever is depressed the spring,
forcing the stop bar forward so as to follow the pin and plunger or punch, causes
the stop bar in descending to impinge against a suitable block, this not only
prevents operation of the register and bell, but moreover no strain is put on these
parts.
If however the presence of a ticket in the proper slot prevents the advance of
the pin, the latter holds the stop bar back, so that in descending the bar clears the
stop block, and allows the bell and register to operate.
In an apparatus of such form as described in the Specification of Letters Patent
No. 14,694 of 1886, I place the stop bar in the top part of the casing so that
one end acts at the rear end of the forked lever, the other extending to the
push rod.
London the 16th August 1001

page_text: Improvements in Ticket Punches.
I, JOHN SMITH COMRIE of 7 and 8, Great Winchester Street in the City of
London Civil Engineer do hereby declare the nature of my said invention 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 further improvements in the construction of ticket
punches such as described in the Specifications of Letters Patent 14,694 of 1886,.
19,356 of 1890 and 6,430 of 1892. In the Specification of Letters Patent
No. 19,356 of 1890 I have shown and described means for connecting the driving
pawl and the arm or check pawl which prevents the return of the lever at "half
stroke." I have also shown how these two parts may be operated by a single
spring. I now further improve and simplify this part of the mechanism as
follows:-
I dispense with the check-pawl dog, or arm and lengthen the driving pawl, the
extension of the driving pawl is so constructed as to engage with the lock plate in
substantially the same manner as the check pawl; in order to facilitate this I
prefer to raise the lock plate somewhat and to place the tooth working therein on
the underside of the extension of the driving pawl. A suitable spring, preferably
of coiled steel-wire is provided for this pawl.
In order further to simplify the whole apparatus I dispense with the stop-wheel
hitherto used and fixed on the same spindle as the driving wheel and with the
pawl or pawls connecting it with the pin. I may rely on the stop bar K.
described in the Specification of Letters Patent No. 6,430 of 1892, and shown in
Figure 2. of the same to prevent operation of the punch except when a ticket is
inserted.
I also further cheapen the construction and reduce the number of parts by
arranging a stop bar as follows:-
Instead of using the stop bar K. (described in the Specification of Letters
Patent No. 6,430 of 1892. as stated) I provide a stop bar close to and behind the
pin which moves in the punch. This stop bar is hinged to the operating lever of
the apparatus and a spring tends to keep it in constant contact with the pin.
Now if there is no ticket in the punch and the lever is depressed, the spring,
forcing the stop bar forward so as to follow the pin and plunger or punch, causes
the stop bar in descending to impinge against a suitable block. This not only
prevents operation of the register and bell, but moreover no strain is put on these
parts.
If however the presence of a ticket in the proper slot prevents the advance of
the pin, the latter holds the stop pin back so that in descending the bar clears the
stop block and allows the bell and register to operate.
In the accompanying drawings
Figure 1. is a plan of the punch with the lid and bell removed.
Figure 2. elevation of certain parts.
Figure 3. shows a spring detached.
Figure 4. another spring also detached.
The driving pawl dog or arm, E. has the extension e. on which is the tooth e¹
to engage with the lock plate E¹. This pawl or dog is actuated by the spring D.
which is separately shown in Figure 3. of the drawing. This spring is made from
coiled wire and particularly adapted for use in connection with this invention.
I prefer to use a spring of this form but others may be applied.
C. is the main wheel or ratchet wheel; underneath the same there are the
counting wheels, no stop wheel being interposed, the pawl or dog required for the
purpose of acting upon the stop wheel being also omitted.

page_text: K. is the stop bar hinged at k, and pressed against the pin which works in the
plunger or punch by the spring L. separately shown in Figure 4. This spring also
actuates the pawl P. engaging with wheel C.
M. is the stop block and m. a recess therein or projection thereon against which
the bar K. impinges to prevent motion of the operating lever A, when no ticket is
in the slot.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
(1.) In a ticket punch such as herein above referred to, a stop bar K. hinged to
the operating lever A, held in contact with the pin by a suitable spring and
impinging against a suitable part of a block M. arranged and operating as set forth
and shown in the accompanying drawings.
(2.) A pawl dog or arm E. having an extension e. with a tooth e so that the
said dog or pawl or arm act in conjunction with the wheel C. and with the lock
plate El as set forth and illustrated in the accompanying drawings.
(3.) In combination with the pawl E. the spring D constructed as shown in
Figure 4. of the accompanying drawings.
(4.) A ticket punch substantially as described in the Specifications of Letters
Patent herein above referred to, but without the stop wheel and the pawl connected
therewith and with a pawl E. acting in conjunction with the main wheel C. and
lock plate E'; a stop bar K. being hinged upon the operating lever A, close to the
pin, all operating for the purposes set forth and arranged as shown in the
accompanying drawings.
Dated this 27th day of December 1894.
BERNHARD DUKES,
Agent for the Applicant.