Improvements in Apparatus for Checking Workmen's Time and for other similar purposes.
Year: 1892

page_text: Date of Application, 15th Jan., 1892
Complete Specification Left, 15th Oct., 1892-Accepted, 26th Nov., 1892
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Checking Workmen's Time and for
other similar purposes.
1, PERCY WOOD, of 84 Christ Church Road, Streatham Hill, in the County of
Surrey, Engineer, do hereby declare the nature of the said invention to be as
follows:-
This invention relates to improvements in that class of apparatus for checking
workmen's time and for other similar purposes, in which a ticket receiver, sub-
divided by partitions or otherwise into any required number of separate
compartments, is moved at stated times by clockwork or otherwise so as to bring a
fresh one of the said compartments under a slot in the case containing the apparatus,
and through which slot the workmen's or other tickets are inserted; the particular
compartment into which the ticket falls indicating the time, or the period between
any two given times, at which the bearer of the ticket entered the premises and
the said improvements are of the following character.
I employ a ticket receiver subdivided into any required number of separate
compartments as in the apparatus heretofore in use, but I prefer to construct the
receiver in the form of a tray, or otherwise, so that it can be readily removed from
and replaced in the apparatus in order to facilitate the collection of the tickets
deposited. I arrange the said receiver beneath the slot in the usual way, so that
when its compartments are brought successively under the said slots the tickets
passed through the latter shall fall into the said compartments, and I effect the
required movement of the ticket receiver at the stated times by means of clockwork
furnished with special locking and releasing mechanism arranged and acting in the
following manner :- - In connection with the ticket receiver is a clock train driven
by a weight or spring which tends to move the ticket receiver so that its
compartments shall pass successively under the depositing slot, but is prevented
from doing so until the proper time by a ratchet, the teeth of which are held by a
pawl. This pawl is released momentarily from the teeth of the ratchet to allow of a
movement of the ticket receiver by means of a cam or tappet actuated by the
clockwork, such cam or tappet being allowed to make that part of its revolution
which effects the release of the pawl from the teeth of the ratchet at a comparatively
quick speed so as to leave the pawl free to fall into gear with the next tooth of the
ratchet before the latter has liad time to overshoot the pawl, whereby the contin-
gency of the ticket receiver being moved beyond its proper distance at each
movement is avoided. This quick speed of the releasing cam or tappet is effected
by means of a mutilated toothed wheel, that is to say, one in which certain of the
teeth are removed from a certain point or points on its periphery. This mutilated
wheel is rotated by the clockwork at a uniform speed, and its teeth, where they
occur, come into gear with a toothed pinion on the axis of the cam or tappet and
prevent the latter from revolving except at a speed corresponding with that of the
mutilated wheel; but when a part of the mutilated wheel which has no teeth on it
comes opposite to the pinion on the axis of the cam or tappet the latter is free to
revolve until stopped by the further advance of the mutilated wheel bringing its
teeth into gear with the said pinion or until stopped by any other suitable means.
When thus allowed to revolve, the cam or tappet acts as a trigger, raising the pawl
momentarily out of gear with the ratchet, allowing the ticket receiver to be moved
a step by the clockwork (or otherwise), but immediately afterwards the cam or
tappet releases the pawl and the latter falls into the next tooth of the ratchet,
preventing the ticket receiver from moving beyond the distance required to bring

page_text: the compartment of the ticket receiver which corresponds to the particular time
under the slot.
Instead of the ticket receiver being moved by clockwork, it may be moved by
any other available means, but its release and stoppage is preferably effected in the
manner above described by means of time keeping clockwork governed by an
escapement in the usual way.
It is obvious that the above described arrangements, suitably modified, are also
applicable to cases where the ticket receiver remains stationary and the slot is
moved over it.
Dated this 15th day of January 1802
P. WOOD.
W. H. Beck,
Per S. E. Gunyon,
115, Cannon Street, London, E.C., Agent.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Checking Workmen's Time and for
other similar purposes.
I, PERCY WOOD, of 84 Christ Church Road, Streatham Hill, in the County of
Surrey, Engineer, do hereby declare the nature of the said invention, and in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement, that is to say :-
This invention relates to improvements in that class of apparatus for checking
workmen's time, and for other similar purposes in which a ticket receiver, subdivided
by partitions or otherwise into any required number of separate compartments, is
moved at stated times by clockwork or otherwise so as to bring a fresh one of the
said compartments under a slot in the case containing the apparatus, and through
which slot the workmen's or other tickets are inserted, the particular compartment
into which the ticket falls indicating the time, or the period between any two given
times, at which the bearer of the ticket entered the premises. And in order that my
said invention may be fully understood will now proceed to describe the same with
the aid of the accompanying two sheets of drawings in which
Figure 1 is an elevation of an apparatus constructed in accordance with my
invention, a part of the case containing it being shown in section,
Figure 2 is a sectional elevation of part of the clockwork taken on line 1-1 of
Figure 1, and
Figure 3 is an elevation of the back part of the clockwork taken on line 2-2 of
Figure 1 and looking from left to right in that figure.
A is a ticket receiver subdivided into any required number of separate com-
partments A as in the apparatus heretofore in use, and as illustrated for example
in the plan of the said receiver shown to a smaller scale in Figure 4. I prefer
however to construct the receiver A in the form of a tray or otherwise so that it
can be readily removed from and replaced in the carrier or support B in order to
facilitate the collection of the tickets deposited, the said tray being guided into
and retained in position in the carrier or support B by means of a pin secured in
the said carrier or support and passing into a hole B' in the bottom of the
receiver A. The receiver A is arranged beneath the slot C in the case D in the
usual way so that when the compartments A¹ are brought successively under
the said slot the tickets passed through the latter shall fall into the said compart-
ments; and I effect the required movement of the ticket receiver A at the stated
times in the following manner :-)
-The carrier or support B, carrying the movable
tray or receiver A, is mounted on the upper end of a shaft A2 which revolves in a
bearing A on the cross bar A.' secured in the case D. A is a spiral spring one
end of which is fixed to the shaft A and the other end to the cross bar A..
When
this spring is wound up by turning the receiver A, support B and shaft A* round

page_text: by hand in the direction of the arrow it tends to move the ticket receiver A. round
on its axis in the reverse direction so that its compartments shall pass successively
under the depositing slot C, but is prevented from doing so, until the proper time,
by a ratchet wheel A the teeth of which are held by a pawl E. This pawl E is
mounted on an axis Ex turning in bearings in the brackets E' and E' and is
released momentarily from the tooth of the ratchet wheel A, to allow the ticket
receiver A to be moved by the spring A' by means of a cam or tappet F actuated
by the clockwork, such cam or tappet making the greater portion of its revolution
at an uniform speed but being allowed to make that part of its revolution which
effects the release of the pawl from the tooth of the ratchet wheel A° at a com-
paratively quick speed so as to leave the pawl free to fall again into gear with the
next tooth of the ratchet wheel before the latter has had time to overshoot the
pawl, whereby the contingency of the ticket receiver being moved beyond its
proper distance at each movement is avoided. This quick speed of the releasing
cam or tappet F is effected by means of a mutilated toothed wheel G, that is to
say one in which the teeth are removed from a certain point or points G on its
periphery. This mutilated wheel G is rotated by the clockwork normally at a
uniform speed and the teeth on one side of the wheel remain intact and constantly
in gear with a toothed pinion H on the axis I of the plate F' carrying the cam or
tappet F; but the teeth on the other side of the wheel G are cut away at the points G₁
leaving clear spaces at those points. The teeth which are not cut away on that
side of the wheel gear with the pinion on the axis K. The wheel G receives
motion from the spring barrel L of the clockwork, by means of the chain L',
fusee L, great wheel L³, and pinion LA, which is connected direct to the wheel G,
the latter transmits motion by the pinion J, axis K, wheel L8, pinion L' and axis L'Ú
to the escape wheel L", escapement 1" and pendulum L13 by which the movement
of the clockwork is governed. By this arrangement the plate F' and cam or
tappet F on it are caused to revolve normally at an uniform speed so long as the
teeth on the wheel G gear with the pinion J but when a part of the mutilated
wheel G which has no teeth on it comes opposite to the pinion J on the axis K the
mutilated wheel goes out of gear with the pinion J and is driven round quickly by
the clockwork until the next set of teeth on the mutilated wheel come into gear
with the pinion J. This quick partial revolution of the mutilated wheel causes a
correspondingly quick movement of the plate F¹ and cam or tappet E which latter
then acts upon the arm E3 of the pawl E, raising the latter momentarily out of
gear with the ratchet wheel A, allowing the ticket receiver A to be rotated by
the spring A until stopped by the pawl E dropping behind the next tooth of the
ratchet wheel A. Immediately after the cam or tappet Fraises the pawl E it
releases it again and the latter falls, under the action of the weight E³, or of a
suitably applied spring, or by its own weight, into the next tooth of the ratchet
wheel A thereby preventing the ticket receiver A from moving beyond the
distance defined by one tooth of the ratchet wheel A, which is sufficient to bring
the compartment of the said receiver, which corresponds to the particular time,
under the slot.
Instead of the ticket receiver A being rotated by a spring A³ it may be rotated
by a weight acting on a cord connected with a pulley or drum on the shaft A²
It is obvious that the above described arrangements are also applicable to cases
where the ticket receiver remains stationary and the slot is moved over it. In that
case the shaft A2 is arranged to pass freely up through the centre of the stationary
ticket receiver and carries on its upper end a disc or other suitable plate having
the slot formed therein, and this slot is brought by the apparatus above described
successively over the compartments of the stationary ticket receiver.
In Figure 1, M is a clock face covered by a glass N in the usual way and
PQ are the hour and minute hands of an ordinary clock indicating the hour of the
day or night. R is a bell which is rung each time a check is passed through the
slot C. The tray A can be removed from the support B by opening the lid D' of
the case D.

page_text: 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
First In apparatus for checking workmen's time and for other similar purposes
in which the ticket receiver is moved beneath the ticket slot, or the slot over the
ticket receiver at stated times, mechanism for locking and releasing the said ticket
receiver, or the slot moving over it, which consists of a pawl taking into the teeth
of a ratchet wheel connected with the said ticket receiver, or with the slot moving
over it, such pawl being raised and released again more or less suddenly by the
action of a cam or tappet rotated normally at an uniform speed, but at an
accelerated speed at the proper time, by means of a mutilated toothed wheel driven
by clockwork, substantially as hereinbefore described, and illustrated in the
drawings.
Second-For the purpose of moving quickly the locking and releasing mechanism
of a ticket receiver moving at stated times below a slot or of a slot moving at
stated times over the ticket receiver, the employment of a mutilated toothed wheel
which moves the releasing cam or tappet normally at an uniform speed, but at an
accelerated speed at the inoment when the ticket receiver, or the slot, as the case
may be, is to be moved substantially as herein before described, and illustrated in
the drawings.
Third The improved checking apparatus, constructed, arranged and operating
as hereinbefore described, and illustrated in the drawings.
Per W. H. Beck,
P. WOOD,
115, Cannon Street, London, E.C., Agent.