Improvements in Mechanism for Opening, Closing, and Securing Casements.
Year: 1893

page_text: Date of Application, 8th Apr., 1893
Complete Specification Left, 8th Jan., 1894-Accepted, 3rd Mar., 1894
PROVISIONAL SPECIFICATION.
Improvements in Mechanism for Opening, Closing, and Securing
Casements.
We CHARLES SHOWELL, of the Firm of Edwin Showell and Son, Lower
Loveday Street, in the City of Birmingham, Brassfounders, and JOSEPH LILLY,
of 6 Hutton Street, Nechells, in the County of Warwick, Art Metal Worker,
do hereby declare the nature of this invention to be as follows :-
:-
This invention relates to improvements in the combination and arrangement of
mechanism whereby, fanlights, skylights, or other hinged casements may be
opened, closed, and secured.
It is applicable to such casements whether hinged at the top, bottom or side.
As applied for instance to a casement which is hinged at the bottom, and opening
inwards, it is constructed somewhat thus:-Upon the side of the said casement
(and near to the top) is secured a bracket, usually consisting of an outstanding
portion of bent rod. This rod is bent into a particular shape, its upper part
being a considerable distance from the casement and then approaching the
casement as it descends, somewhat in the parabolic form.
Again: Upon the fixed casement frame, is now provided a sliding rod carried
and guided in suitable bearings and brackets. Upon this rod, and opposite to the
bracket upon the moving casement is an outstanding arm, whose outer end engages
with the (parabolically shaped) bent rod, by means of a pommel or eye piece,
which is capable of a swivel action to accommodate itself to the said rod, and
which slides upon the latter. Thus by sliding the said rod the outstanding arm is
forced along the bent bracket rod, and by reason of its contour, the casement is
opened or closed. While the arm can operate the casement, it will be found that
the arm cannot be moved by the casement, and thus any possibility of opening from
the outside is prevented. Upon the sliding-rod a frictional brake is provided
which steadies its motion, and prevents any tendency to motion by gravitation.
Instead of the bent rod form of bracket, a similar shaped slot or groove may be
used, and the pommel modified to suit. The shape of the outstanding arm is also
made to accommodate right or left hand application. In either case the rod or
the groove or slot is so shaped at each end to ensure the casement being firmly
pulled home aud-secured-in-such-position..
The sliding rod may in most cases be carried to within easy reach-of-the
operator, and there terminate with a suitable handle, or in some cases, it may be
extended but a short distance, and then operated by means of a hooked stick, or
cords and pulleys may be adapted to work it.
Dated this 7th day of Anil 1902
CHARLES T. POWELL,
Applicants' Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in Mechanism for Opening, Closing, and Securing
Casements.
We CHARLES SHOWELL, of the Firm of Edwin Showell and Son, Lower
Loveday Street, in the City of Birmingham, Brassfounders, and JOSEPH LILLY
of 6 Hutton Street, Nechells in the County of Warwick, Art Metal Worker, 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 improvements in the combination and arrangement of
mechanism whereby fanlights, skylights, or other hinged casements may be opened,
closed, and secured.
It is applicable to such casements whether hinged at the top, bottom or side.
In order to more clearly explain this our invention we have appended hereunto
an illustrative drawing upon which are figures and numbers of reference, similar
numbers referring throughout the several views to the same thing or part, and in
which :-
Fig. 1, is a front view of the invention as applied to a casement hinged at the
bottom.
Fig. 2, is a side view of the invention as seen when closed.
Fig. 3, is a side view of the invention as seen when opened.
Fig. 4, is a side view of the invention as applied to a casement when the
casement is hinged at the top, and is shown opened.
Fig. 5, is a detached detail view of the (rod) bracket.
Fig. 6, is a detached detailed view of the forked arm and pommel.
Fig. 7, shows the frictional box in detail.
Fig. 8, is a detached view of the spring for frictional box.
As applied for instance to a casement which is hinged at the bottom, as shown
in Figs. 1, 2 & 3, and opening inwards, it is constructed somewhat thus :-9, is the
casement, hinged at 10. Upon the side of the said casement (and near to the top)
is secured the bracket 11, usually consisting of an outstanding portion of bent rod
as shown. This rod is bent into a particular shape, its upper part at 12, being a
considerable distance from the casement, and then approaching the casement as it
descends, somewhat in the parabolic form, this particular shape not being absolute,
but is generally identical with or near to the shape shown.
Again. Upon the fixed casement frame 13, is now provided a sliding rod 14,
carried and guided in suitable bearings and brackets 15, 15. Upon this rod 14,
and opposite to the bracket 11, upon the moving casement, is an outstanding
arm 16, whose outer end engages with the (parabolically shaped) bent rod 11, by
means of a pommel or eye piece 17, which is capable of a swivel action to
accommodate itself to the said rod 11, and which slides thereon. Thus by sliding
the rod 14, the outstanding arm 16, and pommel 17, are forced along the bent
bracket rod 11, and by reason of the contour of the latter, the casement 9, is
opened or closed. While the arm 16, can operate the casement 9, it will be seen
that the said arm cannot be moved by the casement, and thus any possibility of
opening or closing from the outside is prevented. Upon the sliding rod 14, a
frictional brake is provided which steadies its motion, and prevents any tendency
to motion by gravitation. This is effected as follows:-18, is a box which is
secured to the frame 13, and through which slides the rod 14. Within this box
is placed a spiral spring 19, through which also, the rod 14 is passed. This spring is
so made that in its free state it is curved as seen in Fig. 8, so that when forced into
the straight position by the straight rod 14, passing therethrough it has a binding
effect upon the said rod, and this together with the fact of its being confined

page_text: (end wise) in the box 18, causes sufficient friction to steady it in movement and to
prevent any tendency to fall of its own weight.
Instead of the bent rod form of bracket 11, a similar shaped slot or groove
may be formed upon a suitably shaped bracket, and the pommel modified to suit.
The shape of the outstanding arm 16, is also made to accommodate right or left
hand application, by being made sufficiently wide in the forks 20, 20, so that the
pommel 17 may be passed thereinto from either side. In either case the rod 11,
(or the groove or slot) is so shaped that when the pommel is at 12, as seen in
Fig. 2, the casement is firmly pulled home and secured in such position, while,
when the pommel reaches the point 21, the casement is fully opened.
The sliding rod 14, may in most cases be carried to within easy reach of the
operator, and there terminate with a suitable handle 22, or in some cases, it may
be extended but a short distance, and terminate with a ring 23, as shown in dotted
lines, and then be operated by means of a hooked stick; or, cords and pulleys
may be adapted to work it.
Upon reference to Fig. 4, it will be readily seen that precisely the same
mechanism is applicable to the operating of casements when hinged at the top, and
in fact the (hinged) position of the casement whether vertical, downhanging,
angular or sideways does not affect the working of the mechanism so long as
suitable means are employed to impart the necessary to and fro motion to the
rod 14.
Having now particularly described and ascertained the nature of this our said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
:-
1. In mechanism for opening, closing, and securing hinged or swinging casements,
the combination with the sliding rod 14, arm 16, and swivelling pommel 17, of the
bracket 11, constructed and operating substantially as described and shown upon
the drawings.
2. The combination with the sliding rod 14, of the frictional box 18, and
spring 19, as and for the purposes described and shown.
Dated this 6th day of January 1894.
CHARLES T. POWELL,
Applicants' Agent.