An Improved Window Cleaning Appliance.
Year: 1899

page_text: Date of Application, 11th July, 1899-Accepted, 9th Sept., 1899
COMPLETE SPECIFICATION.
An Improved Window Cleaning Appliance.
I, JOHANN MARTIN TIETJEN, of 1, Grapengiesserstrasse, Lüneburg, Germany,
Merchant, 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 a window cleaning appliance whereby the whole of both
the inner and outer surfaces of any pane may be effectually cleaned from within
the building, the peculiar shape of the brush enabling all the corners of the
window pane to be reached, whilst the provision of a double joint on the handle
permits of the cleaning appliance being adjusted for working in any desired
position according to the different levels of the various parts of a window.
Reference is to be had to the accompanying drawings forming part of this
specification, wherein Figure 1 is a side view, and Figure 2 a back view partly
in section, of the improved window cleaner; Figure being a side view illus-
trating a variation of the adjustment.
The improved window cleaning appliance consists of a brush a having the
ends of the stock recessed as at a for the purpose of ensuring a proper cleaning
of the window pane by the introduction of the salient corners of the brush into
the corners thereof. The brush a is attached to the handle by an intermediate
arm d hinged at one end to the brush a and at the other end to the socket e which
receives the handle, so as to admit of angular adjustment of a, d and e relatively
to one another. The arm d has a tongue plate c projecting from one end to
form one member of the hinge joint whereby the brush a is adjustably secured
to the arm, a pin 6 serving to maintain the angular adjustment, as shewn in
Figures 1 and 3. The arm d has another tongue plate f projecting from the
opposite end, and entering a slot or notch in the spherical end o of the handle
socket e, the arm d being capable of angular adjustment relatively to the
socket e about the thumbscrew g as a centre, a pin o¹ passing laterally through
the parts serving to maintain the adjustment.
By these means as is obvious, the brush surface can be adjusted relatively to
the handle, to an angle corresponding to the height of the window to be cleaned.
The chamois leather or cloth is preferably placed on the brush, so as to be
retained by engagement with the recesses a¹ and caused to adhere to the salient
corners of the brush formed by these recesses, the action of the bristles under-
neath the said chamois or cloth ensuring the perfect cleaning of the window.
Having now particularly described and ascertained the nature of the said in-
vention and in what manner the same is to be performed I declare that what
I claim is:
In a window cleaning appliance having a brush with salient angles formed
by lateral recesses in the brush stock and adapted to enter into and effect the
cleaning of the corners of the panes the attachment of the brush to the handle
by an intermediate arm hinged on the one hand to the brush and on the other
hand to a socket adapted to receive the end of the handle, the angular position

page_text: of the brush relatively to the intermediate arm, and of the latter relatively to
the handle, being capable of adjustment, substantially as and for the purposes
specified.
Dated this 11th day of July 1899
A. M. & WM. CLARK,
Chartered Patent Agents, 53, Chancery Lane, London.