A NEW OR IMPROVED WATCHMAN'S DETECTOR
Year: 1875

page_text: LETTERS PATENT to John Joseph Wainwright, of Birmingham, in
the County of Warwick, Merchant and Manufacturer, for the
PROVISIONAL SPECIFICATION left by the said John Joseph Wainwright
at the Office of the Commissioners of Patents, with his Petition,
on the 6th April 1875.
I, JOHN JOSEPH WAINWRIGHT, of Birmingham, in the County of
Warwick, Merchant and Manufacturer, do hereby declare the nature of
the said Invention for "A NEW OR IMPROVED WATCHMAN'S DETECTOR," to
be as follows:-
-
My Invention consists of a new or improved watchman's detector,
the parts of which are constructed and arranged in the manner herein-
after described.
The object of my Invention is to indicate at what hour or other
division of time the watchman makes his rounds,

page_text: The said detector consists of a cylindrical case in which a horizontal
rotating dial similar to the dial of a clock works, the said dial being
carried by a wheel or disc connected to a clock movement, the said
wheel or disc making one revolution every twelve hours. The said
rotating dial and a fixed pointer or finger on the lid of the case
serve to indicate the hour. The spring barrel of the clock movement is
situated in the axis of the case, and is wound up by a cross handle in a
recess at the bottom of the case The circumference of the wheel or
disc carrying the dial is divided by preference into 48 square recesses or
openings, each recess or opening indicating a quarter of an hour. The
said recesses or openings are for the purpose of receiving small cylindrical
pegs or checks which are supplied to the watchman. The cover of tho
case is hinged to the case, and is provided with a staple plate which is
passed over a staple on the side of the case, and is fastened by a padlock.
The central part of the cover is of glass and through it the time is
read off: The metal rim of the hinged cover at a point opposito that-at
which the staple plate is connected to it is provided with a small hole or
funnel situated exactly over that part of the dial wheel in which the
recesses or openings are made. Through this hole or funnel the pegs or
checks supplied to the watchman are passed into the said recesses in the
dial wheel for indicating the time at which the watchman made lus
rounds. Small spheres instead of cylindrical pegs may be used.
The apparatus works in the following manner:-At each round of the
watchman he places a small peg (or sphere) in the small hole or funnel
in the lid of the case, which peg as the dial wheel travels under it falls!
into one of the recesses in the said dial wheel, the said peg being carried
with the dial wheel in its motion. By opening the lid of the apparatus
the number of pegs inserted by the watchman can be seen, the position
of cach peg in the dial plate indicating the time at which the watchman
placed it in the apparatus.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Joseph Wainwright in the Great Scal
Patent Office on the 1st October 1875.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixth day of April, 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 John Joseph Wainwright
Her special license that I, the said John Joseph Wainwright, my
executors, administrators, and assigns, or such others as I, the said
John Joseph Wainwright, 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 law-
fully 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 "A NEW OR IMPROVED WATCHMAN'S DETECTOR," upon the
condition (amongst others) that I, the said John Joseph Wainwright,
my exccutors or administrators, by an instrument in writing under my,
or their, or one of their hands and scals, 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 calendar months next and imme-
diately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said John Joseph Wainwright, do
hereby declare the nature of the said Invention, and in what manner
the same is to be performed, to be particularly described and ascertamed
in and by the following statement thereof, that is to say –
My Invention consists of a new or improved watchman's detector the
parts of which are constructed and arranged in the manner herein-after
described.
The object of my Invention is to indicate at what hour or other
division of time the watchman makes his rounds
The said detector consists of a cylindrical casc in which a horizontal
rotating dial similar to the dial of a clock works, the said dial being
carried by a wheel or disc connected to a clock movement, the said
wheel or disc making one revolution every twelve hours. The said rotating
dial and a fixed pointer or finger on the lid of the case serve to indicate.
the hour The spring barrel of the clock movement is situated in the
axis of the case and is wound up by a cross handle in a recess at the.
The circumference of the wheel or disc carrying
bottom of the case.

page_text: the dial is divided by preference into 48 square recesses or openings
cach recess or opening indicating a quarter of an hour. The said recesses
or openings are for the purpose of receiving small cylindrical pegs or
checks which are supplied to the watchman. The cover of the case is
hinged to the case, and is provided with a staple plate which is passed
over a staple on the side of the case, and is fastened by a padlock. The
contral part of tho cover is of glass and through it the time is read off.
The metal rim of the hinged cover at a point opposite to that at which
the staple plate is connected to it is provided with a small hole or funnel
situated exactly over that part of the dial wheel in which the (recesses
or openings are made. Through this hole or funnel the pegs or checks
supplied to the watchman are passed into the said recess in the dial
wheel for indicating the time at which the watchman made his rounds.
I will now describe with reference to the accompanying Drawing the
manner in which my Invention is carried into effect.
Figure 1 represents in plan and Figure 2 in vertical section a
watchman's detector, the parts of which are constructed and arranged
according to my Invention, Figure 3 represents a plan of the same
with the cover removed. The same letters indicate the same parts in
the several Figures of the Drawing.
a is the cylindrical case of the detector, fixed to a table or other
surface by the lugs a², a²; and b, b, is the lid hinged at c to the case a,
and having at its opposite side a hinged staple plate & which is passed over
a staple e on the side of the case and is fastened by a padlock. The central
part 2 of the cover b is of glass; is the horizontal rotatory dial similar
to the dial of a clock, the said dial being carried by a wheel or disc h, the
said wheel or disc / being connected to the axle or arbor of the spring
barrel of the clock mechanism marked l, l, the said clock mechanism
being supported by the raised part or stand m at the bottom of the case a.
The spring barrel is wound up by a cross handle having a hollow stem
which is screwed upon the axle or arbor to which the spring of the
spring barrel k is connected. The cross handle 2 is situated in the
recess p at the bottom of the case a.
2
The clock mechanism represented is of the ordinary kind and con-
statutes no part of my Invention.
By means of the said clock mechanism the wheel or disc h and the
dial f carried by it make one revolution every twelve hours. On the

page_text: lid is a fixed pointer or finger q for indicating the time, the said time
bemg read off the rotating dial through the central glass part 6 of the
cover 6. The circumference of the wheel or disc / carrying the dial fis
divided into 48 (or other number of) square recesses or openings » (scc
Figure 3) open at top, each recess or opening" indicating a quarter of
an hour. Into these openings "small cylindrical pegs or checks 8
supplied to the watchman are placed by him. For the purpose of
introducing the pegs or checks into the recesses or openings " a funnel
or receiver is made on the metal rim of the cover b, the said funnel or
receiver t being situated exactly over that part of the dial wheel / in
which the recesses or openings are made, as best seen in Figure 2.
Through the funnel & the pegs or checks 8 supplied to the watchman aro
passed into the said recesses " in the dial wheel for indicating the time at
which the watchman made his rounds. Small spheres instead of
cylindrical pegs may be used.
The apparatus works in the following manner:-At each round of
the watchman ho places a small peg, similar to those markeds (or a
small sphere) in the hole, funnel, or receiver in the lid 6 of the case,
which peg is supported upon an unperforated part of the dial wheel h,
but as the dial wheel travels under the said pcg it falls into one of the
recesses in the said dial wheel, the said peg being carried with the dial
wheel in its motion. By unlocking and opening the lid b, 62, of the
apparatus the number of pegs inserted by the watchman can be seen, the
position of cach peg in the dial wheel indicating the time at which the
watchman placed it in the apparatus.
In Figure 3 four pegs 8, 8, are represented placed in alternate recesses
in the dial wheel r, the said pegs indicating that the watchman has
mado his rounds and has inserted a peg at cach half hour.
I do not limit myself to the divisions represented of the dial wheel,
as other divisions of the said dial wheel may be adopted with hke
cffect.
Having now described the nature of my Invention, and the manner
in which the same is to be performed, I wish it to be understood that I
do not limit myself to the precise details herein described and illustrated,
as the same may be varied without departing from the nature of my
Invention, but I claim as my Invention, the new or improved watchman's
detector, the parts of which are constructed and combined as hercin-

page_text: before described and illustrated in the accompanying Drawing, that is
to say, the combination of the rotary clock dial fand wheel or disc h
with the glazed cover b, b², provided with the fixed pointer or finger q
and funnel-or receiver t, the said disc or wheel 7 being divided into 48
or other number of recesses or openings for receiving small cylindrical
pegs or spheres, placed by the watchman in the funnel or receiver of the
lid, for the purpose and substantially as described and illustrated. Also
the arrangement of parts for winding up the clock mechanism of the
watchman's detector.
In witness whereof, I, the said John Joseph Wainwright, have
hereunto set my hand and scal, thus Twenty-ninth day of
September, in the year of our Lord One thousand eight hundred
and seventy-five.
Witness,
JOHN JOSEPHI WAINWRIGHT. (L.S)
RICHARD SKERRETT,
Clerk to George Shaw,
Birmingham.