Improvements in the Construction of Window Sashes and Frames to Facilitate Cleaning and other Operations.
Year: 1896

page_text: Date of Application, 3rd Dec., 1896-Accepted, 6th Feb., 1897
COMPLETE SPECIFICATION.
Improvements in the Construction of Window Sashes and Frames
to Facilitate Cleaning and other Operations.
I, FREDERICK DE JERSEY CLERE, of 54 Lambton Quay, in the City of Wellington,
in the Colony of New Zealand, Architect, do hereby declare the nature of my
invention for "Improvements in the construction of window sashes and frames to
facilitate cleaning and other operations" and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement :-
My invention relates to window sashes which slide in their frame and are pivotted
to revolve so that the outside of the window may be easily cleaned, or the sashes
painted or glazed, or other operations performed from the inside of the building
with facility.
I am aware that hinged or movable parting and staff beads have been employed so
as to leave when opened or removed a clear space at the lower part of the frames in
which either sash might swing on pivots placed at or near the centre.
In my invention I retain the pivots at or near the centre of the sashes, but I fix the
parting and staff beads permanently and securely to the frame of the window after the
sash has been put into position. The pivots work in sliding blocks, which correspond
in length to the height of the sash, and are made with V shaped faces and pressed by
springs into a corresponding groove in the sash.
When the top or bottom of the sash is pushed, the V shaped faces will force back the
sliding blocks into their grooves and leave the sash free to revolve. When returned
to its normal position the grooves in the sash will again receive the sliding blocks and
form a joint to exclude wind, rain, and dust.
In order that my invention may be most easily understood by one skilled in the
art to which it appertains, I will now proceed to describe the same reference being
had to the accompanying drawings on which :-
Figure 1 is a front elevation of an ordinary window fitted with my sashes.
Figure 2 is a transverse section of the same through line A-B, Figure 1.
Figure 3 is a vertical section through line C-D, dotted lines shewing the sashes
reversed.
Figure 4 is a detail view of the sliding block in position upon a sash.
Similar letters refer to similar parts.
Referring to the drawings, (a) is the sash frame and (b) are the pulley styles having
the usual pulleys (c). The staff heads (d) parting beads (e) and outside lining (f)
are secured to the styles and frame in the usual manner to form grooves to
receive sliding blocks (9), which carry the sashes (h) and (h 1) upon their
pivots ( 2). The pivots may be of any ordinary form but I prefer to make them
as shown in Figure 1 where the sash and sliding block are cut away to show the
socket (3) let into the sliding block to receive the plain portion (4) of the pivot.
An ordinary screw head (h 5) and screwed stem (h 6) provide for screwing in and
holding the pivot in position within the sasb.
To the back of sliding blocks (9). are fixed springs (j) which operate against the
pulley styles (b) or metal strips (61) fixed thereon to press the ✓ shaped
faces (1) of the blocks into the corresponding grooves in the sashes. The sash
cords (1) are attached near to the top of sliding block and pass over pulleys (c) in
the ordinary manner.

page_text: A small groove (m) is cut down the sides of the sashes to catch and carry away
any water which by capillary attraction may find its way between the sash and
sliding block.
The sash may be placed in position by removing the staff bead (d) from one side
of the window, and then taking the sash with its sliding blocks, springs, and sash
cords attached and inserting the sliding block in the groove on the other side of the
window. The springs on the other sliding block are held back by the fingers until
they pass within the pulley style, when the sash may be pushed home and the staff
bead replaced.
From this description it will be seen that the sliding blocks move with the sashes
and that when in a vertical position, they correspond to, and operate in the same
manner as, tongues formed solidly on the edge of the sash or as sashes working
in grooves in the ordinary manner, but when it is required to revolve the sash the
sliding blocks recede by the V shaped faces forcing back the springs a clear space
being thus left for swinging the sash upon its pivots as desired. Both sashes may
be revolved and left open at the same time to give a maximum of ventilation by means
of the window.
I wish it to be understood that I do not confine myself to the exact details
hereinbefore described as these may be modified in several ways without departing from
the principle of the same, for example the shape of the V shaped grooves may be
modified and may semi-circular, or otherwise curved; or the sliding block may be
grooved and the sashes provided with corresponding faces.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is-
1. The combination of a window frame with sashes having V shaped grooves and
pivotted to sliding blocks having corresponding V shaped faces, substantially as and
for the purposes set forth herein.
2. The combination of a window frame with sliding blocks having V shaped faces
pressed by springs into V shaped grooves in the sashes, substantially as and for the
purposes set forth herein.
3. The combination of a window frame having metal strips in its grooves with sliding
blocks, having V shaped faces pressed by springs into V shaped grooves in the sashes,
substantially as and for the purposes set forth herein.
4. The combination of a window frame with sashes having V shaped grooves and
grooves for carrying away water and pivotted to sliding blocks having corresponding
V shaped faces, substantially as and for the purposes set forth herein.
5. In combination, a window frame having metal strips, sliding blocks to which
the sash cords are attached and having V shaped faces, springs, and sashes pivotted
at or near their centres to the sliding blocks and having V shaped grooves and
grooves for carrying away water, substantially as and for the purposes set forth
herein.
6. The improvements in the construction of window sashes and frames to
facilitate cleaning and other operations, constructed, arranged and operating
substantially as and for the purposes set forth herein and illustrated on the
accompanying drawings.