Improvements in and relating to Windows. for cleaning purposes
Year: 1899

page_text: Date of Application, 13th Nov., 1899
Complete Specification Left, 24th July, 1900-Accepted, 3rd Nov., 1900
Improvements in and relating to Windows.
I, ARTHUR HENRY FISHER, of Melbourne, in the County of Bourke, Architect,
do hereby declare the nature of my invention for "Improved window opener for
cleaning purposes" to be as follows:-
Specefication of appliance for detaching the cords from window sashes, so as to
enable the cords of ordinary hung window sashes to be detached while the sashes
are hanging in the frame, and permit of the sashes (when cords are released)
opening upon hinges into the room for the purpose of cleaning their exteriors.
The invention comprises first an apparatus for detaching the window cords from
the sashes, and hanging the sashes upon hinges so that after detachment of the
cords the sashes will open inwards.
The several parts comprise, firstly a steel rod working upon metal bearings one
of these bearings is upon the inside lining of frame & the other on the outside
lining, upon the rod are metal lever catches, which, when brought forward by
turning handle attached to rod disconnect the metal loops (that the cords are fixed
to) from the loop-catch inserted & screwed into side of sash, and as they are dis-
connected they are brought down by the levers into recesses (cut for same) in the
pulley stile, a small grove is also cut in the stile to take the cords so as to bring
the cords; together, with the loops, flush with the stile.
As the sashes are brought down to a level within a few inches of the sill hinges
are provided for them to drop onto. The lower portion of beads are hinged to
open & this allows the sashes after cords are detached to open one after the other
into the room.
.
ב
improvements in and relating to Windows,
I, ARTHUR HENRY FISHER, of 48, Queen Street, Melbourne, in the Colony of
Victoria, Architect, 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:-
The obiect of my invention is to provide a window-cord clutch and releasino

page_text: mechanism for attachment to cord and balance-weight windows a yoke at the ends
of the ropes being securely held in a clutch on the cash-edges, so that when desired
the yokes are released from the clutches by the engagement to such yoke of a lever-
hook attached to a horizontal snaft manually operated by means of a handle when
such lever hook withdraws the yoke from the clutch so that the cords and balance
weights are for the time being disconnected from the sashes and held stationary
by the said lever-hook, leaving the sashes free to swing pivotally on male and
female pintles hereinafter described in and out of the frame. By this means
the sashes may be swung horizontally into the room where they can be more
conveniently and perfectly cleaned, as well as obviating the risk of accident to
which persons cleaning windows become liable when obliged to climb about the
exterior of buildings.
Another advantage is that by my new mechanism the whole window-space may
be thus thrown open for increased ventilative purposes.
In order that iny said invention may be more clearly understood, I will now
describe same having reference to the accompanying drawings (two sheets) similar
reference letters being used to denote similar parts.
Figure 1 is a plan of one side of the frame and one side of the pair of sashes
showing the cord-releasing mechanism.
Figure 2, right hand end of sash with rope clutching mechanism attached.
Figure 3, section through Figure 2, with operating lever-hook in position to
release the yoke on end of sash-cord when lever turned downwards.
Figure 4, lever hook holding yoke on end of sash line.
Figure 5, disc on end of shaft operating the levers with paul for holding lever
in position sustaining the rope and balance weight shewn in Figure 4.
Figure 6, plan of left hand side of frame and sashes with male and female
pintles forming the hinges.
Figure 7, is the handle for operating the horizontal shaft, D.
A, A, are the upper and lower sashes; B, the pulley style; B¹ parting-slip
hinged or otherwise removable; C, C, the clutches bedded and secured in sash-
edges; C, lever-hook on operating shaft D; D, the horizontal operating shaft;
E, the yoke on end of each sash-cord; E¹ the sash-cord; F, the recesses in pulley
style, B, in which the lever-hooks work; G, collar on end of shaft D; working
in metal plate, G2, recessed and secured in window-frame; G¹ the inner collar on
other end of shaft, 1), working in similar plate, Gs, fitted with a disc, L, slotted
for reception of pawl, K, (Figure 5); H, the window frames (inner and outer),
H', boading hinged to inner window-frame, H, so as to swing back leaving the
sash free to swing horizontally and pivotally inwards on its upper and lower
hinges consisting of male and female pintles forming such hinges, I, I' provided
for each sash; J, the handle connecting to, and for operating horizontal shaft, D.
The said cord-clutching and releasing mechanism when connected to windows
as before described is operated by hand in manner following;-
Draw down the upper sash to the lower section of the frame connecting the
pintles, then lift the bottom sash sufficiently, then turn back the beadings, H¹, on
side of the window, draw the bottom sash downward and inwards until the female
pintles on such sash drop over the male pintles on the frame, then turn the
lever-handle, J, on shaft, D, downward, when the lever-hook C', in its circum-
ferential course hooks on to the yoke, E, (see Figure 3) drawing such yoke down
(see Figure 4) until it is released from the clutch, C, thus disconnecting the cord
from the sash leaving the sash free to swing horizontally on its hinges, I, I¹, into
the room (see Figure 6) the cord and its weight being in the mean-time securely
held motionless by the lever-hook. The upper sash is relieved from the cord
and manipulated similarly to the lower sash as above described, being first drawn
down to the lower section of the opening when the pintles connect and the upper
sash is free to swing horizontally into the room till it rests against the lower sash.
When desiring to restore the sashes to their normal positions in the frame, the
upper sash is swung back into the frame, lifted, and the pintles disconnected by

page_text: operating the handle, J, when in the reverse or return direction, the lever-hook C³,
redraws the yoke, E, into the clutch, C, when in its circumferential course it
disengages or unhooks from the yoke and the cord and sash are re-connected.
Then restore the hinged-slip B¹, to its normal position and throw the sash up to
its true position, and manipulate the lower sash and mechanism in the same
manner. It will be readily understood that when the lever-hook withdraws the
yoke trom the clutch, the pawl, K, falls into one of the slots in the disc, L,
securing the lever-hook and yoke and its weighted cord motionless.
It is obvious that by duplicating the cord releasing mechanism, the sashes may
be made free to swing into the room in reverse directions, right and left, but the
accompanying drawings illustrate one-cord releasing device only for both sashes
to permit of their being moved horizontally in one direction only as before
described.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:-
1. The clutches, C, C; lever hooks C₁; the horizontal operating shaft D; the
yokes E; the collars G, G¹; the metal plates G³, G³; slotted disc L, paul, K, and
handle J, fitted and working together, forming a window cord clutching and
releasing mechanism for attachment to rope and balance weight windows as before
described and illustrated.
Dated this 20th day of In 1000
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C.
Agents.