AN ALARUM AND MA- CHINERY FOR THE DISCOVERY AND DETECTION OF DEPREDATORS IN A HOUSE OR PREMISES
Year: 1813

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
AMBROSE TICKELL, of Little Park Place, Lambeth, in the County of Surrey,
Gentleman, send greeting.
WHEREAS His most Excellent Majesty King George the Third did, by
Ilis Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the First day of July, in the
fifty-third year of His reign, give and grant unto me, the said John Ambrose
Tickell, my exors, adñors, and assigns, His especial licence, full power, sole
priviledge and authority, that I, the said John Ambrose Tickell, my exors,
adiiors, and assigns, should and lawfully might, during the term of years
therein mentioned, make, use, exercise, and vend, within England, Wales, and
the Town of Berwick-upon-Tweed, my Invention of "AN ALARUM AND MA-
CHINERY FOR THE DISCOVERY AND DETECTION OF DEPREDATORS IN A HOUSE OR
PREMISES;" in which said Letters Patent there is' contained a proviso that if I,
the said John Ambrose Tickell, shall not particularly describe and ascertain
the nature of my said Invention, and in what manner the same is to be
performed, by an instrument in writing under my hand and seal, and cause
the same to be inrolled in His Majesty's High Court of Chancery within six
calendar months next and immediately after the date of the said Letters
Patent, that then the said Letters Patent, and all liberties and advantages
whatsoever thereby granted, shall utterly cease, determine, and become void,
as in and by the same (relation being thereunto had) nay more fully and at
large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
John Ambrose Tickell, do hereby declare that the nature of my said Inven-

page_text: tion, and the manner in which the same is to be performed, are particularly
described and ascertained in and by the Drawings hereunto annexed, and the
following references thereto or description thereof, that is to say:
Figure 1st is an internal view of a domestic sentinel for eight rooms; it may
be made and applied to any number of doors or windows, or any convenient or
fit part.
a, a, a, a, a, a, a, a, are wires that slide freely through the
boards B, B. b, b, b, b, b, b, b, b, are weights fixed on the wires for the pur-
pose of overcoming the friction of the wire or cords with the chain that goes to
the different doors or windows in any part of the house. C, C, C, C, C, C, c, c, are
pieces fixed on the wires for discharging the leaver C as they fall on it, and
extricate it from the pin at the end of the leaver C in the wheel of the alarm,
which is immediately discharged, and gives notice that some door or window
has been opened. E is a spring to balance this leaver.
Figure 2nd is a side section of the sentinel for one room, which will be
sufficient to describe the action. a, the wire with its appendages already
described in the First Figure. A is the slide which is kept up by the pro-
jecting piece B resting on the weight b. When the weight falls by the opening
of a door or window the slide A is let fall, and shews what room has been
entered, as the name of the rooms are under the slides, as shewn in the front
of the instrument, Figure 3. C, C, C, C, is the wire or cord with the spiral
spring D, to keep it tight as it may stretch by use.
Figure 3rd is the front of the sentinel with the slides on it. A, A, A, A,
A, A, A, A, the second and fourth slides have been discharged and shew what
rooms have been entered.
Figure 4th is a view of the discharging catch, which is fixed to the door
frame or any convenient or fit part. C is the wire that comes from the
sentinel and fixed to a piece a, which slides in the groove b, and carries the
catch c with it, which is held down by the pin d till the door is opened.
Figure 5th. a, a, is a cylinder that slides in its frame b, b, b, b. e is a spiral
spring that keeps the cylinder forward, resting against the frame by the pin d, d,
which is through it; the whole of this is fixed in the edge of the door, as
represented in the small sketch, Figure the Sixth. When the catch is to be
set, which is done when the room is not to be entered any more that night,
the catch c, Figure Four, is pulled down and put on the pin d; in shutting the
door the cylinder a, a, Figure the Fifth, is forced by the incline e of the catch c,
Figure 4th, back till it passes and shuts forward behind the incline e. In
opening the door the cylinder a, a, Figure 5th, pulls the catch from the pin d,
which is liberated and pulled up by the weight in the sentinel; the slide falls
at the same time, and shews the room that is entered. Although I have

page_text: laid down this plan of my machine, yet I do not confine myself strictly.to it,
as it may be varied according to circumstances, without deviating from the
principle of my Invention, viz', the slides in the front of the machine may be
substituted by doors or windows, or apertures of any kind, through which or by
which may appear, by letters, signs, or numbers, the particular door or window
opened in the house. The wires and weights also, which are specified herein,
may be substituted by cords of different kinds, and the chains, and pullies, and
weights by cranks, wires, and springs, and the whole may be varied in many
ways, and put into many shapes as fancy may dictate; but the principle of the
machine is to shew, upon the alarm being given, the particular door, window,
or place in the house or premises which has been opened; and also all others
(to which it may be applied) that may be open in the further progress of the
depredator.
In witness whereof, I, the said John Ambrose Tickell, have hereunto set
my hand and seal, this Twentieth day of November, in the year of our
Lord One thousand eight hundred and thirteen.
JOHN AMBROSE TICKELL
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L.S.
AND BE IT REMEMBERED, that on the Twentieth day of November, in
the year of our Lord 1813, the aforesaid John Ambrose Tickell came before
our said Lord the King in His Chancery, and acknowledged the Specification
aforesaid, and all and every thing therein contained and specified, in form above
written. And also the Specification aforesaid was stampt according to the
tenor of the Statute made for that
purpose.
Inrolled the Thirtieth day of November, in the year of our Lord One
thousand eight hundred and thirteen.