IMPROVEMENTS IN AND RELATING S&NITY CHARDS NOD WINDOW CLEANING AND LIVE PERRONG>>FETY GU L PURPOSES
Year: 1880

page_text: LETTERS PATENT to Thomas Rochford, of Brunswick Square, in the City of
London, County of Middlesex, and of 15, Water Street, Liverpool, in the
County of Lancaster, for an Invention of "IMPROVEMENTS IN AND RELATING
S&NITY
CHARDS NOD WINDOW CLEANING
AND LIVE PERRONG>>
PROVISIONAL SPECIFICATION left by the said Thomas Rochford at the
Office of the Commissioners of Patents on the 16th July 1880.
THOMAS ROCHFORD, of Brunswick Square, in the City of London, County of
Middlesex, and of 15, Water Street, Liverpool, in the County of Lancaster.
"IMPROVEMENTS IN AND RELATING TO SAFETY GUARDS FOR WINDOW CLEANING
AND LIKE PURPOSES."
This Invention has for its object to provide means for safely cleaning windows
from the outside, and for protecting the cleaner during the operation of cleaning,
and for other purposes, and rapid application to any ordinary window without
previous alteration or preparation.
A safety guard according to my Invention is of a collapsable or folding nature,
and consists of a frame of metal tubing the bottom of which is cranked to rest on
the window sill and carries two screws (connected in the middle by a nut), and
being right and left threaded screws, so that by turning the nut the screws are
forced out, so that their ends, which are provided with bearer plates with roughed
or spiked surfaces, may grip the window frame or sash frame and hold the guard in
position, or the right and left screw may be formed on a bar with a hand piece in
the centre, and the screws may take into tubes provided with corresponding screws
or nuts so that bearers at the ends of the tubes can be forced onto and grip the
window frame or sash.
The guard frame is constructed of telescopic, folding, or permanent form in one,
two, or three sections, so that when not in use they can be closed and stowed away;
for example, the uprights of the frame may be of three lengths, telescoping into
each other, having three cross bars, namely, one bar to each length of the frame.
These bars are connected together by three vertical rods, namely, two on the centre

page_text: bar sliding through sockets on the lower bar, and one on the upper bar sliding into
a socket on the middle bar, or vice versa. These sockets are provided with thumb
or hand screws, by tightening which the frame can be held open.
The guard is
provided with a footboard extending from side to side of the frame so as to come
over the window sill.
A modification may consist in making the frame to telescope in two sections
only.
Another modification may consist in making the frame permanent, and the
upper portion being in one piece with the lower portion, or hinged to the lower
portion or centre.
The frame may be surrounded with a wire gauze, or net work, canvas, wood, or
other material, if desired.
The guards may be used for window cleaning, for painting, or for nursery
window guards, or like purposes, and may be constructed of any suitable metal.

page_text: holes to receive a turning handle, rod, or lever. The bearer plates I may be round
square, or other shape, and furnished with or without a pointed stud or feet.
The
surface bearing may have india rubber or gutta percha facings. The pointed stud
may be fastened in the socket in the end of the screwed rods F by means of a
groove and screw, thereby allowing the rods F to turn without the pointed stud.
Small eyelets are intended to be used in the wood of the sash frame after the
guard has been once used to receive the points of the bearer plates, and to prevent
inarking of the wood work, and act as a guide to servants or unskilled persons
when fixing the guard.
The guard frame A is constructed of telescopic (see Figures 8, 9, 10, 11), folding
(see Figures 1, 2, 3), or permanent (see Figures 5 and 7) form, in one, two, or three
sections, so that when not in use they can be closed and stowed away; for example,
the frame A may be made of three lengths (see Figures 10 and 11) telescoping into
each other, having three cross-bars; namely, one-bar-to cach. length of the frame.
These bars are connected together by three vertical rods, namely, two on the
centre bar, sliding through sockets on the lower bar and one on the upper bar sliding
into a socket on the middle bar, or vice versa. These sockets are provided with thumb
or hand screws, by tightening which the frame can be held open.
The guard is
provided with a foot board, such as that shown at Figure 6.
Another modification may consist in making the frame telescopic in two sections
only (see Figures 8 and 9). The frame A may be surrounded with a wire gauze, or
network, or canvas, or wood, or other materials if desired, so as to shut the cleaner
in, and, if desired, shield the person from observation.
Having now described and ascertained the nature, object, and purposes of my
Invention, and shown how the same may be put into practical operation, what I
claim as my Invention and secured to me by Letters-Patent-as-aforesaid.is,
First. Constructing and arranging safety guards for window cleaning, painting,
and other purposes, in the manner heroin described and shown at Figures 1 and 2
of the Drawings hereto annexed.
Second. Constructing and arranging safety guards for window cleaning, painting,
and other purposes, in the manner herein described and shown at Figures 3, 12, 4,
and 5 of the Drawings hereto annexed.
Third. The devices for securing, fixing, or fastening safety guards (for window
cleaning, painting, and other purposes), as hercin described and shown at Figures 1,
2, and 6 of the Drawings hereto annexed.
Fourth. Constructing and arranging safety guards for window cleaning, painting,
and other purposes, as herein described and shown in the modifications illustrated
at Figures 7, 8, 9, 10, and 11 of the Drawings hereto annexed.
Fifth. Constructing and arranging the foot boards of safety guards for window
cleaning, painting, and other purposes, as herein described and shown at Figures G,
13, and 14 of the Drawings hereto annexed.
In witness whereof, I, the said Thomas Rochford, have hereunto set my hand
and seal, this Twelveth 12th day of January, in the year of our Lord One
thousand eight hundred and eighty one