Improvements in Safety Attachments for Windows.
Year: 1894

page_text: Date of Application, 6th Apr., 1894
Complete Specification Left, 3rd Jan., 1895-Accepted, 23rd Mar., 1895
PROVIDIONAL DIEUTICAL
Improvements in Safety Attachments for Windows.
1, JAMES PRIDE, of 17 James Street, in the County of Middlesex, Gentleman,
do hereby declare the nature of this invention to be as follows:-
This invention relates to a chair, platform, or equivalent adapted to be attached
to a window for the use of a person cleaning, decorating or repairing the window,
whereby increased safety is attained. The invention may be made in the form of
a chair or a simple platform with side rails or the like, and if desired and
particularly when made as a chair it may be made to fold somewhat after the
fashion of an ordinary folding chair so as to take up little space when stowed
away.
When made as a chair the invention consists of a seat supported upon a frame
at each end, the form of which somewhat resembles that of a sickle, the point or
blade of the sickle being adapted to fit under the window sill upon the outside of
the wall, and the straight or handle portion projecting more or less horizontally
through the window opening into the interior of the building and carrying inside
the building feet or lugs adapted to fit against the window sill or wall inside the
building. These lugs may be adjusted upon the frames so as to fit different
thicknesses of walls various means being employed for moving them. A con-
venient way is to allow them to slide loosely upon the frames, the ends of which
are screwed to receive the nuts by which the positions of the lugs can be
adjusted. Or again, the frame may be screw-threaded or partly screw-threaded
and the lug may carry a worm-wheel which can be turned by the hand of
the operator so as to draw it backwards and forwards, or wedges or ratchet and
pawl devices and the like may be employed. If desired the lugs may have
projecting portions so as to engage with the wall where a moulding or other device
of the window prevents the lug from obtaining a full bearing.
The end frames may be connected together partly by the seat and partly by one
or more tie-rods or distance pieces or equivalents and to them may be pivotted two
arms adapted to carry boards, rails or the like so as to form a back, and these
pieces may be again connected by jointed arms with the straight portion of the
side frames to which the free ends of the arms can be pivotted. With this
arrangement the chair can be folded up flat so as to take up very little room, the
feet or lugs being if desired turned inwards towards each other and the curves of
the sickles being also pivotted or arranged to fold if necessary.
It will be understood that whether as a chair or a scaffold platform it is not
absolutely necessary that the apparatus should fold up at all, but it is convenient
for the purpose of saving space. Also the sickle ends need not necessarily have
the shape of a sickle, but might be bent or straight according to the construction
of the apparatus so as to enable them to reach the wall underneath the sill.
The seat may be dispensed with if the frames are properly connected together,
the person using the apparatus then sitting upon the window-sill and being
supported by the back which may be formed entirely of metal or other material
if preferred.
A convenient joint for the arms of the chair connecting the frames with the top
of the back may be formed by using flat strips to make the arms of and allowing
them to overlap for a sufficient distance and jointing the end of one portion a

page_text: short distance into the body of the second, and placing a stop upon the first against
which the free end of the second, which may be bevelled or curved for the purpose,
would rest when the chair was fully opened. This a convenient arrangement
especially as it forms an efficient stop to the chair when opened and in use while
the stop itself acts also to prevent any portions of the chair overlapping the others
too far when folded. Second stops may be employed for the back as well as the
arms to ensure proper support to the back to prevent it from falling over when
in use.
Dated this 6th day of Antil 1001
Improvements in Safety Attachments for Windows.
I, JAMES PRIDE of 17 James Street, in the County of Middlesex, Gentleman,
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 chair, platform or equivalent adapted to be attached
to a window for the use of a person cleaning, decorating, or repairing the window,
whereby increased safety is attained. The invention may be made in the form of
a chair or a simple platform with side rails or the like, and if desired and
particularly when made as a chair it may be made to fold somewhat after the
fashion of an ordinary folding chair so as to take up little space when stowed
away.
The invention will be best understood by reference to the accompanying drawings
in which
Figures 1 and 2 are respectively side and front elevations of the safety attach-
ment in the form of a chair, Figure 1 showing it applied to the sill of a window,
and
Figures 3 and 4 are modified constructions of the fastening devices thereof.
Like letters indicate like parts throughout the drawings.
When made as a chair as shown in Figures 1 and 2 the invention consists of a
seat A supported upon a frame B at each end, the form of which somewhat
resembles that of a sickle, the point or blade of the sickle being adapted to fit
under the window-sill Cupon the outside of the wall C₁ and the straight or
handle portion projecting more or less horizontally through the window opening C²
into the interior of the building and carrying inside the building, feet or lugs D
adapted to fit against the window-sill or the wall C₁inside the building. These
lugs D may be adjusted upon the frames B so as to fit different thicknesses of
walls, various means being employed for moving them. A convenient way is to
allow them to slide loosely upon the frames B, the ends of which are screwed as
at B' Figure 1, to receive the nuts E by which the positions of the lugs can be
adjusted. Or again, the frames B may be screw-threaded or partly screw-threaded
and each lug D may carry a worm-wheel which can be turned by the hand of the
operator so as to draw it backwards and forwards, or wedges may be used as shown
in Figure 3 where F indicates a wedge capable of being forced in, or withdrawn
from, between the loop D¹ of the lug D and the frame B passing through said
loop. The lower edge of the frame bar B is provided with teeth B and the lug D
is provided with similar teeth to engage therewith so that when the wedge F is
tightened between the upper part of the loop D₁ and frame B as it may be by
the screw G or otherwise the lug will be securely locked in position.
Other means for fastening the Jugs D on the frames B may be employed, for

page_text: example, a ratchet and pawl device; or, as shown in Figure 4, each lug D may
have pivotted to its upper end an arm H having teeth on its underside to engage
with teeth B2 on the upper side of the frame bar B, a ring I being provided to
pass over the arm H to hold it in engagement with the frame B after it has been
adjusted thereon.
If desired the lugs D may have projecting portions so as to engage with the
wall where a moulding or other device such as J Figure 1 of the window prevents
the lugs D from obtaining full bearings.
The end frames B may be connected together partly by the seat A and partly if
desired by one or more tie-rods or distance pieces or equivalents and to them may
be pivotted two arins K adapted to carry boards, rails or the like K' K' so as to
form a back, and these pieces may be again connected by jointed arms L L' with
the straight portion of the side frames B to which the free ends of the arms K
and L can be pivotted. With this arrangement as shown in dotted lines in
Figure 1 the chair can be folded up flat so as to take up very little room, the feet
or lugs D being, if desired, turned inwards towards each other and the curves of
the sickles "B being also pivotted or arranged to fold if necessary.
16
It will be understood that whether as a chair or a scaffold platform it is not
absolutely necessary that the apparatus should fold up at all, but it is convenient
for the purpose of saving space. Also the frames B need not necessarily have the
shape of a sickle, but might be bent or straight according to the construction of
the apparatus so as to enable them to reach the wall C' underneath the sill C.
The scat A may be dispensed with if the frames B are properly connected
together, the person using the apparatus then sitting upon the window-sill Can.l
being supported by the back K K K which may be formed entirely of metal or
other material if preferred.
A convenient joint for the two parts L L' of each arm of the chair may be
formed by using Hat strips to make the arm L L' of and allowing them to overlap
for a sufficient distance and jointing the end of the portion L' a short distance into
the body of the other portion L, and placing a stop L' upon the portion L', against
which the free end of the portion L, which may be bevelled or curved for the
purpose would rest when the chair was fully opened as shown. This is a con-
venient arrangement especially as it forms an efficient stop to the chair when
opened and in use, while the stop itself will act also to prevent any portions of the
chair overlapping the others too far when folded. Second stops may be employed
for the back as well as the arms to ensure proper support to the back to prevent it
from falling over when in use.
To the underside of the seat A I prefer to secure one edge of a piece of canvas
or apron M which as shown in Fig. 1 may be laid over the bottom of the window
frame and inner face of the wall C¹ so as to prevent the feet of the user coming
into contact with and damaging the paint or other surface at the inner side of the
wall C'; the apron M also serves to protect the garments of the user of the chair or
support from rubbing upon the uneven surfaces at the bottom of the window
frame. When not required for use the apron may be rolled up and in this
condition secured to the underside of the seat A by a strap and buckle M. Nis
a loop or handle by means of which the chair or safety attachment may be
conveniently carried from place to place.
It will be observed that the before described chair or support may be attached
to any window or equivalent opening without necessitating the provision of purchase
bars or other fittings of a like permanent description.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is ;-
1. In a chair platform or equivalent device such as described the combination
with frames such as B of a back such as K K K and arms such as L L' pivoted
together substantially as described and illustrated in the accompanying drawings.

page_text: 2. In a chair platform or equivalent device such as described the combination
with a frame such as B of a foot or lug such as D adjustable thereon for securing
the chair in position without requiring permanently-fixed fittings substantially as
described.
3. In a chair platform or equivalent device such as described the combination
with a screw threaded frame such as B of a foot or lug such as D and nut E sub-
stantially as and for the purpose described and illustrated in Figures 1 and 2 of
the accompanying drawings.
4. In a chair platform or equivalent device such as described the combination with
a frame such as B having a screw thread or teeth of a foot or lug adjustable
thereon and carrying a worm-wheel engaging with the thread or teeth substantially
as and for the purpose described.
5. In a chair platform or equivalent device such as described the combination
with a frame such as B of a foot or lug such as D adjustable thereon and a wedge
such as F and screw G substantially as and for the purpose described and illustrated
in Figure 3 of the accompanying drawings.
6. In a chair platform or equivalent device such as described the combination
with a frame such as B having a rack or teeth B2 of a foot or lug such as D arm
such as H pivotted to the lug and a ring I substantially as and for the purpose
described and illustrated in Figure 4 of the accompanying drawings.
7. The combination and arrangement of parts constituting the complete chair
for attachment to the sill of a window or the like substantially as described and
illustrated in Figures 1 and 2 of the accompanying drawings.
Dated this 3rd day
Janus
January LAYA
Valeu CHHIS TU UAV U Jamary LAYA
JAMES PRIDE.
W. P. Thompson & Boult,
Agents for the Applicant.