improved ventilation & escape in case of
Year: 1899

page_text: Date of Application, 19th Oct., 1899
Complete Specification Left, 19th July, 1900-Accepted, 1st Sept., 1900
DAVID OLDHAM, 39, Acorn Lane, Gee Cross, Hyde, Nr. Manchester, no occupa
tion, do hereby declare the nature of this invention to be as follows:-
"The drop and lift window, improved ventilation & escape in case of fire."
1 The window is fixed by sliding the pivots into the slots in socket plate
and can be lifted out immediately without any tools.
2 Especially good in case of fire in mills."
3 No danger in cleaning.
4 Improved ventilation.
5 Cannot be opened from outside by burglars.
6 No weights chains or pulleys required.
The frame of window is solid, rabbited to the depth of sash 2 inches for
ordinary cottages, and 3 inches or over for mills, the sashes made in one two
or three windows according to size.
bolts
A pivot with plate screwed to sash. B socket plate screwed to frame.
C section of sill shewing roller bead. D flush bolts. E plate for
with catch for stopping window from falling. Fshewing window open.
pivot and socket in position with window closed.
Dated this 18th day of October 1899.
A, B,
DAVID OLDHAM.
Improvements in Windows.
I, DAVID OLDHAM, of 39, Acorn Lane, Gee Cross, Hyde, in the County of
Chester, out of business, do hereby declare the nature of this invention and in
what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement and accompanying drawings :-
My said invention relates to windows, and has for its object to dispense with
the usual sliding weights and pulleys and to produce a window the sash or sashes
of which open inward and are capable of being readily removed for cleaning and
glazing purposes and the like.
The invention will be clearly understood from the following description in
which I shall refer to the annexed sheet of drawings.
In the said drawings.
Fig. 1 is a front elevation of a casement or window frame, constructed in
accordance with my invention, adapted to receive and support two pivotted
cachos

page_text: Fig. 4 is a view of the two sashes in position in the frame or casement both
sashes being shown closed.
Fig. 5 is a vertical sectional view of Fig. 4, the dotted lines showing the
sashes closed whilst the full lines indicate the position of the same when the
window is partially opened.
Figs. 6 and 7 are enlarged detail views of the sockets and pivots for sustaining
the sashes..
Fig. 8 shows a modification of my invention in which a single pivotted sash or
glazed portion is used.
Fig. ŷ is a sectional view of Fig. 8 showing the window as when partly opened.
In constructing windows, in accordance with my invention, I employ a suit-
ably shaped framing or casement a, which is formed with a recessed portion or
projecting bead a', as clearly shown in Figs. 1, 5 and 6. This recessed portion
or projecting bead prevents outward displacement of, and renders weather-tight,
the sashes when the same are in position in the frame. Within the recessed
portion of the framing a, I pivot the two sashes b, c, so as to be capable of moving
inwards on their pivots or supports, when desired. In order to pivot the sashes be
to the frame a, I provide each sash with a pivot pin & carried by a bracket d
screwed or otherwise secured to the lower ends of the vertical styles of the two
sashes
These pivot pins, drop into and engage suitably shaped slots e formed in flat
plates or brackets el which are screwed or suitably secured to the vertical niem-
bers of the frame a, as clearly shown in Figs. 1 and 6.
The lower sash c is suitably cut away or formed at c¹ to fit a curved or other
bead a², formed on the lower horizontal member or sill of the frame a, so that
when the sash is introduced into position in the frame, by dropping the pivot
pins into the slots e, the concave portion of the sash bears against the convex
bead a² and the sash may be turned to open or close the window.
The upper sash b, carried on its pivot pins d, bears when the lower sash is
closed against a similar curved bead formed on the lower sash c.
Thus, when
the sashes are shut to, the window is made perfectly weather-tight the beads
also serving to guide and support the sashes when one or the other is opened. To
prevent jambing, the lower ends of the sashes are cut away at c', as shown more
clearly in Fig. 7.
In order to firmly secure the sashes when closed, I employ suitable sliding
bolts g or the like, which, engage a part carried by the sashes or it might be by
the frame. By releasing the said bolts either or both of the sashes may be
opened to a convenient extent the forward movement being limited or checked
by any suitable means..
Under one arrangement I may employ fixed quadrant h secured to the frame a,
sliding bolts or spring catches carried by the sashes engaging one or other of a
number of holes or recesses formed in the quadrant. In another arrangement I
might employ cords or the like capable of being adjusted to the extent it is
desired to open the sashes.
To remove the sashes for cleaning or glazing purposes, it is only necessary to
turn each sash on its pivot until clear of the frame, when the sash may be
readily lifted and raised out of the slots in the plates e¹ with the utmost ease and
without the use of any implement.
The re-placing of a sash is effected with just the same ease and facility. Thus
by means of my invention the cleansing of the entire window may be performed
with absolute safety in the interior of the room.
I might in some cases, employ fixed quadrants such as j, secured to the frame a,
a part carried by each sash bearing against the quadrant, so as to prevent the
sash being lifted from its pivots until the sash has been turned to a pre-deter-
mined extent.

page_text: Instead of having two sashes in the frame I might mount a single sash therein,
the said sash being pivotted and arranged within the frame as above described.
This construction is indicated in Figs. 8 and 9.
In cases where the sashes are situated some distance from the floor they may
if desired be opened and closed by means of cords k, k¹, as indicated in Fig. 9.
By means of my invention I produce an exceedingly cheap and efficient
window without the use of weights and pulleys and one which when closed cannot
be opened from the outside.
With windows arranged as herein described I obtain an improved ventilating
effect the incoming air being directed towards the ceiling of the room so that
objectionable draughts are not set up.
It will be obvious that the method of pivotting the sashes may be readily
varied.
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:-
-
The improved window, having a framing adapted to receive a sash or sashes,
such sash or sashes pivot tally engaging the said frame and being readily remov-
able therefrom the said sashes opening inwards from and closing in the said
frame substantially as herein described.
Dated this 18th day of July 1900.
For the Applicant,
E. K. DUTTON & Co.,
Chartered Patent Agents, 5, John Dalton Street, Manchester, and
3, Yorkshire Street, Rochdale.