Improvements in Casements.
Year: 1897

page_text: Improvements in Casements.
I, WILLIAM BONNER HOPKINS Architect of Fairhill Great Berkhampstead,
Herts., do hereby declare the nature of this invention to be as follows:-
A hinge in the from of a crank which is attached to one side or edge of any
casement, either of wood iron or any other material, & is fixed at its free ends to
sockets let into the frame or mullions, sills, heads etc. of the window; and is of
such a form & so arranged as to allow of the casement being entirely reversed
so that its outside is turned inwards for the purpose of cleaning etc.
Dated this Wourteenth day of April 1897
Improvements in
I, WILLIAM BONNER HOPKINS, Architect, of Fairhill, Great Berkhampstead,
in the County of Hertford, and of 5 Staple Inn, Holborn, in the County of Middle-
sex, 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 an improved construction of casement, the object
being to enable access to be readily obtained to the external surface of the glass
for cleaning or other purposes.
Outwardly opening casements or sashes as hitherto constructed have usually
been hinged or pivotted so as to open outwards like a door, the hinges or pivots
being permanently fixed to the frame or to the head and sill or to the jambs of
the opening in which the casement or sash is placed. So arranged it has been
impossible to reach the external surface of the glass for cleaning or other purposes
without passing right outside the window, which, in many circumstances is a
dangerous performance.
With the improved construction the casement or sash is so pivotted at the ends
of arms which may be released when desired, that the whole frame may be
reversed and the external surface of the glass be presented to the interior of the
house.
In the accompanying drawings.
Figure 1 is an elevation of the external appearance of the improved casement.
Figure 2 is a section on the line 2-2 of Fig. 1.
Like letters indicate like parts throughout the drawings.
The casement or sash A carrying the glass is pivotted at one side by the pivot
pins B in the free ends of arms C which are themselves pivotted at D to the frame
or to the head and sill of the opening in which the casement is placed. The ends
of the arms C carry tongues C which, when the arms are folded back, and the
casement arranged to be opened in the ordinary manner, pass through holes in the
P877

page_text: frame or other fixture placed to receive them. Each of the tongues C¹ has an
eye at the end through which a pin F may be passed so as to lock the arms in the
inoperative position. When the pins F are withdrawn the arms C should be
turned about the pivot points 1 and the whole casement reversed into the position
shown in dotted lines in Figure 2, thus bringing the external surface of the glass
towards the interior of the house.
It is obvious that many other devices for locking the arms C in the inoperative
position may be employed instead of the pins F and tongues C¹.
In place of arranging the pivotting of the arms and casement as shown, the
latter may be centrally pivotted on the ends of the arms which may themselves
be pivotted at the side of the opening in which the casement is placed. In this
construction in order to enable the casement to be opened in the ordinary manner,
the arms will be locked by some convenient means to the casement or sash, which
will then turn about the pivot points at the ends of the arms, but if it is required
to reverse the window for cleaning purposes, the arms will be unlocked from the
casement when the latter may be turned about its central pivot to enable access
to be obtained to the external surface of the glass.
It must be understood that the method and position of hinging or pivotting
the casement or sash to the arms, and the arms themselves to the frame or to the
head and sill or to the jambs of the opening, may be varied as desired. Thus
for example the pivots of the arms and casement may be arranged upon horizontal
axes in order to form a fanlight. I do not bind myself to the employment of any
particular material or materials for the construction of the several parts of my
improved reversible casement.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed I declare that what
I claim is:-
-
1. A doubly-pivotted reversible casement or sash substantially as described.
2. A casement or sash carried upon pivotted arms such as C substantially as
described.
3. In a reversible casement the combination with a sash such as A of arms such
as C pivotted at one end to the sash and at the other to the frame or to the head
and sill or to the jambs of the opening.
4. The complete reversible casement or sash substantially as described and
illustrated in the accompanying drawings.
Dated this 26th day of July 1897
WM. BONNER HOPKINS.
Boult & Wade,
Agents for the Applicant.