IMPROVEMENTS IN APPARATUS FOR FACILITATING THE CLEANING OF WINDOWS
Year: 1854

page_text: LETTERS PATENT to Frederick Westbrook, of Kensington, in the County
of Middlesex, for the Invention of "IMPROVEMENTS IN APPARATUS FOR
FACILITATING THE CLEANING OF WINDOWS.
Sealed the 22nd August 1854, and dated the 25th February 1854.
PROVISIONAL SPECIFICATION left by the said Frederick Westbrook
at the Office of the Commissioners of Patents, with his Petition, on
the 25th February 1854.
I, FREDERICK WESTBROOK, of Kensington, in the County of Middlesex,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
APPARATUS FOR FACILITATING THE CLEANING OF WINDOWS" to be as follows:-
This Invention relates to the portable stages usually employed by glaziers and
others to enable them to stand outside windows for the purposes of cleaning,
repairing, and painting the same. The apparatus which I employ for this
purpose is so constructed as to admit of its being readily adapted to any window
sill, whatever may be the thickness of the wall or the projection of the sill
beyond the same. My improved apparatus is constructed as follows:-I
provide a board or a metal frame, furnished with two projecting legs and two
screws, of sufficient length to reach from the board or frame outside the sill to
the interior of the apartment. Upon these screws two clamps of wood or metal
are placed, which may be either screwed to fit the above-mentioned screws, or
may be loose and furnished with nuts. The method of affixing the apparatus
is as follows:-The board or frame being placed outside the window, with the

page_text: projecting legs underneath the sill, the clamps or nuts are screwed up until
the apparatus is fixed perfectly secure. The frame or board is provided with a
sliding plank, which rests upon the window sill, and upon which the workman
stands. I would here remark that the plank upon which the workman stands
may be furnished with a protecting rail or light frame, so as to form a moveable
balcony, and thus afford additional protection.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Frederick Westbrook in the Great Seal Patent Office on the
25th August 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, FREDERICK
WESTBROOK, of Kensington, in the County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fifth day of February, in the year of our Lord
One thousand eight hundred and fifty-four, in the seventeenth year of Her reign,
did, for Herself, Her heirs, and successors; give and grant unto me, the said
Frederick Westbrook, Her special licence that I, the said Frederick Westbrook,
my executors, administrators, and-assigns, or such others as I, the said
Frederick Westbrook, my executors, administrators, and assigns, should at
any time agree with, and no others, from time to time and at all times there-
after during the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and Ire-
land, the Channel Islands, and Isle of Man, an Invention for " IMPROVEMENTS
IN APPARATUS FOR FACILITATING THE CLEANING OF WINDOWS," upon the condition
(amongst others) that I, the said Frederick Westbrook, by an instrument in
writing under my hand and seal, should particularly describe and ascertain the
nature of the said Invention, and in what manner the same was to be per-
formed, and cause the same to be filed in the Great Seal Patent Office within
six calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Frederick Westbrook, do hereby declare
the nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof (that is to say) :—.
My improvements in apparatus for facilitating the cleaning of windows
relate to the portable stages usually employed by glaziers, painters, and others,
to enable them with more safety to stand outside windows for the purposes of

page_text: struction of stage or balcony adapted for the above-mentioned purposes, as
exhibited in the annexed Drawing, and herein-before particularly described.
In witness whereof, I, the said Frederick Westbrook, have hereunto set
y hand and seal, this Twenty-fifth day of February, in the year of our
Lord One thousand eight hundred and fifty-four.
my
Witness,
ALEX PRINCE,
Patent Agent,
4, Trafalgar Square.
F. WESTBROOK. (L.S.)