Improvements in Apparatus for Recording and Checking Workmen's Time and for other similar Purposes.
Year: 1897

page_text: Improvements in Apparatus for Recording and Checking
Workmen's Time and for other similar Purposes.
I, WILLIAM WHITEHEAD, of 4, Corporation Street, Manchester, in the County of
Lancaster, Electrical Engineer, do hereby declare the nature of this invention to be
as follows:
This invention relates to improvements in that type of apparatus for recording
and checking workmen's time and for other similar purposes, described in the
Specifications of Letters Patents granted to me No. 21083, dated 3rd day of
December, 1891, and No. 8513, dated 30th day of April, 1894, the object being to
simplify and so arrange the respective type wheel governing or locking device, as
to be exposed to view and easily accessible and to provide means whereby the
stamping mechanism is formed into a hand time stamp.
•
To this end I employ on the side of the hour and a.m. p.m. type wheels and on
that of a disc on the governing shaft referred to in Specification of Letters Patent
No. 8513 of 1894 aforesaid, pins in connection with double ended locking levers,
one end of the said locking levers being adapted to ride upon the respective cam
discs on the said governing shaft and the sleeve of the type wheels and the other
forming a pawl, to engage the pins on the respective type wheels and disc on the
said governing shaft and hold them in position when required and to release them
so as to be moved by a tooth or teeth on the aforesaid cam discs, which pins thus
serve a double purpose. The said pawls consist each of a tooth formed at the
respective lever end and of a finger pivoted thereto and under the influence of a
weak spring.
Upon the aforesaid sleeve I secure a ratchet wheel with ten teeth having on one
side ten pins and arranged between two discs connected together and loosely
mounted upon the said sleeve. By means of a rod the said discs are connected to
the arm of an armature when working the stamp electrically, or to a lever operated
by one of the wheels of the clock when working the stamp mechanically. To the
arm of the said armature or lever is pivoted a pawl under the influence of a spring,
which serves to rotate the ratchet wheel secured upon the said sleeve, each time the
current passes through the magnet or said lever is operated by the clock. In order
to retain the said ratchet wheel and thus the said sleeve in position when required,
another double ended locking lever is employed upon the same shaft which carries
the aforesaid locking levers, one end of which lever rides upon a cam formed on
the ratchet wheel discs and the other, forming a pawl, engages the pins on the said
ratchet wheel.
When converting my improved time stamp to a hand stamp I form a frame in
outline similar to that of an ordinary date stamp, inside of which I employ another
frame vertically guided and having a stem passing through a boss formed on the
said outer frame and furnished with a knob. The said inner frame carries the

page_text: stamping mechanism herein before referred to and is raised out of use by means of
a coiled spring employed in the said outer frame. The said inner frame carries
also a magnet and above the same an armature, having an arm the free end
of which carries the pawl which operates the ratchet wheel on the aforesaid
sleeve.
To provide for locking the whole of the stamping mechanism in position in the
event of the current passing whilst the stamp is in use, I hinge laterally to the
armature, an arm under the influence of a spring and adapted to be engaged by a
catch lever also under the influence of a spring and operated by means of a rod
which passes through the said stem and is furnished with a button at its upper end.
This rod is supported by means of a coiled spring employed inside the said stem,
and when the stamp is not in use remains raised. When the operator grips the
knob of the stamp he depresses the said rod, the lower end of which then moves
the said catch lever in position to lock the said hinged arm and thus keeps the
armature down upon its magnet until the grip on the stamp is released by the
operator, when the type wheels are free to move again.
Date wheels or other devices for stamping dates or names may be added to the
time type wheels used if deemed necessary which may be moved by hand or
mechanically.
F. BOSSHARDT & Co.,
Agents to Applicant.
Improvements in Apparatus for Recording and Checking
Workmen's Time and for other similar Purposes.
I, WILLIAM WHITEHEAD, of 4, Corporation Street, Manchester, in the County
of Lancaster, Electrical Engineer, 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 following statement :-
This invention relates to improvements in that type of apparatus for recording
and checking workmen's time and for other similar purposes, described in Specifi-
cations of Letters Patents No. 21083, dated 3rd December, 1891, and No. 8513,
dated 30th April, 1894, granted to me, the object being to simplify and so
arrange the respective type wheel governing and locking device, as to be
thoroughly reliable, exposed to view and easily accessible and to provide means
whereby the stamping mechanism is formed into a hand time stamp.
And in order that my invention may be more fully understood I have caused to
be appended hereunto one sheet of drawings marked with letters of reference
indicating like parts in the various figures.
Fig. 1, is a side view, Fig. 2 a sectional end view and Fig. 3 an end view,
Fig. 4, a plan and Figs. 1x & 2× detached views of my improvements carried out
in the form of a hand time stamp. Figs. 5, 6, 7, 8, 9, 10 & 11 are end views partly
in section of the stamp wheels, and Fig. 12 is a longitudinal section of the latter.
a is the hour, b the minute tens, c the minute units, and d the a.m., p.m. type
wheel, e the hollow governing shaft, f the type wheel sleeve and g the axle of
the latter.
To this end, I employ on the side of the hour and a.m., p.m. type wheels a & d
respectively and on that of a disc h on the hollow governing shaft e, referred

page_text: to, pins a¹, d, h¹, respectively, in connection with double ended locking
levers i, 2, 2 mounted loosely on the shaft e', the bowl ends of the levers i, 21
being adapted to ride upon the cam discs h² & h³ secured upon the hollow shaft e
and that of the lever upon the cam disc h secured to the sleeve f, and the other
ends having pawls k, k¹ adapted to engage the pins a¹, d¹ on the type wheels a & d
and h¹ on the disc h secured to the governing shaft e respectively and hold the
same in position and to releas them when required so as to be moved by a
tooth 5 & he on the cam discs h2, h3 respectively, which pins thus serve a double
purpose. The said pawls consist each of a tooth formed at the respective lever
end and of a finger pivoted thereto and under the influence of a spring k².
Upon the sleeve ƒ I secure a ratchet wheel having ten teeth and on one side
ten pins, arranged between two discs m, m, connected together and loosely
mounted upon the sleeve f.
When working the time stamp electrically, for instance, as is the case in a hand
stamp, say in such as shown on annexed drawing, the said discs are connected to
the arm p of an armature pl of an electro-magnet by means of the rod o and
when working it mechanically, to a lever (not shown) operated by one of the wheels
in the clockwork as will be readily understood.
To the arm p of the armature p¹ (or said lever) is pivoted a pawl under the
influence of a spring 7, which serves to rotate the ratchet wheel, each time the
current passes through the magnet r, or said lever is operated by the clock. In
order to retain the ratchet wheel and thus the sleeve fin position when required,
another double ended locking lever 3 is employed upon the shaft e¹, the bowl end
of which lever rides upon a cam m¹ formed on the disc m and the other, forming
a pawl k, l, k², engages the pins on the ratchet wheel l.
When working the type wheels forming the time stamp electrically the action
is as follows ;-
In the primary or secondary clock (not shown) is an electric circuit closer. The
electric current from a battery or other electric source is closed by the said
circuit closer at predetermined intervals, in the present instance every minute.
The electro-magnet r of the stamp is connected to the said battery or electric
source through the circuit closer in the said clock and the current in passing around
the magnet attracts its armature p¹ once every minute which causes the rod o to
be raised and impart a partial turn to the discs m, m, sufficient for the bowl end
of the pawl lever to drop into the depression in the cam m¹ on one of the
discs m which causes the pawl end of the lever to clear the pins ¹ and thus
liberate the ratchet wheel . When the circuit is broken, the spring q' raises the
armature p¹ and the pawl q carried by its arm p descends and turns the ratchet
wheel one tooth and thus its sleeve ƒ a tenth of a revolution, the bowl end of
the pawl lever is being in the meantime raised by the cam m¹ and its pawl end
caused to engage one of the pins and thus lock the ratchet wheel and sleeve f
in position. Each time the ratchet wheel and sleeve ƒ are moved a tooth or a
tenth of a revolution as described, the minute units type wheel c receives a
corresponding turn and when completing its revolution its pin c¹ moves the ratchet
wheel one tooth and thus by the medium of the hollow governing shaft e and
the spur wheels 61 & 62, the minute tens type wheel b, a twelfth of a revolution.
At the completion of each half revolution of the hollow governing shaft e, the
tooth h on the cam disc h2 engages between the pins a' on the hour type
wheel a.
At the completion of each revolution of the hollow governing shaft e
the tooth on the disc h³ engages between the pins d' on the a.m., p.m. type
wheel and turns the same a twelfth of a revolution. The hour and a.m., p.m. type
wheels after each turn are locked in position by means of the locking levers 2, 1
and discs h² & h³ respectively and are released when required to turn by the
recesses in the cam discs h² & h³ meeting and allowing the bowl ends of the
lever & ¹ to drop into the same and thus cause the pawl ends to lift off
the respective pins: After each turn the hollow governing shaft e is locked in

page_text: position by the pawl lever ² and cam disc h in the same manner as the type
wheels.
When working the time stamp mechanically, the type wheels operate precisely
the same as when worked electrically, the only difference being that the rod o and
pawl q have motion imparted from a lever operated by a wheel of the clock as
will be readily understood.
When converting my improved stamp to a hand stamp, I form a frame t, in
outline similar to that of an ordinary date stamp, inside of which I employ another
frame u vertically guided and having a stem u¹ passing through a boss t¹ formed
on the said outer frame t and furnished with a knob u². The inner frame u
carries the stamping mechanism hereinbefore described and is raised out of use by
means of a coiled spring v employed in the outer frame t, t¹. The said inner
frame carries also the magnet and above the same an armature p, p¹, the free
end of the arm p of which carries the pawl q which operates the ratchet wheel
fixed on the sleeve f. To provide for locking the armature p¹ in position upon
the magnet and thus prevent the stamp wheels changing in the event of the
current passing whilst the stamp is in use, I hinge laterally to the armature p¹ an
arm w, see Fig. 2*, under the influence of a spring w¹, see Figs. 4 & 1×, and adapted
to be engaged by a catch lever x also under the influence of a spring r¹ and
operated by means of a rod y which passes through the stem u¹ and is furnished
with a button y¹ at its upper end. This rod is supported by means of a coiled
spring employed inside the said stem, and when the stamp is not in use
remains raised. When the operator grips the knob of the stamp he depresses the
rody, y¹, the lower end of which then moves the catch lever x in position to lock
the hinged arm w, see Fig. 1x, and thus keeps the armature p¹ down upon its
magnet until the grip on the stamp is released by the operator, when the type
wheels are free to move again.
4
Date wheels or other devices for stamping dates or names may be added to the
time type wheels used if deemed necessary, which may be moved by hand or
mechanically as may be found most convenient.
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 :-
1st. In apparatus for recording and checking workmen's time and for other
similar purposes wherein the minute units type wheel is formed on a sleeve f and
the hour, minutes, tens, and a.m., p.m. type wheels are mounted loosely on the
said sleeve, a ratchet wheel secured to one end of the latter, actuated by means
of a pawl controlled by a clock, for the purpose of intermittently rotating the said
sleeve, all substantially as set forth.
2nd. The sleeve f, having secured thereto a ratchet wheel with pins l on one
side and a cam disc m loosely reciprocated thereon by a rod o under the control
of a clock, in combination with a double ended locking lever is, which cam disc, is
adapted to cause the pawl end of the lever 3 to engage one of the said pins and
lock the ratchet wheel in position each time it has received a partial turn and to
release the same when required, all substantially as set forth.
3rd. The sleeve having secured at one end a cam disc 4, in combination with a
double ended locking lever i² and a disc h secured upon the hollow governing
shafte having pins h¹ on one side, the said cam disc being adapted to cause the
pawl end of the said lever to engage one of the said pins and lock the said hollow
governing shaft in position each time it has received a partial turn and to release
the same when required, all substantially as set forth.
4th. The hour and a.m., p.m. type wheels a & d having each at one side
pins a, din combination with double ended locking levers & ¹ and cam
discs h² & h³ respectively secured upon the governing shaft e, adapted to cause the
pawl ends of the said levers to engage one of the said pins and lock the respective

page_text: type wheels a, d in position each time they have received a partial turn and to
release the same when required, all substantially as set forth..
Dated this 24th day of December 1897.
· F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.