Improvements in Moveable Casement Opening, Closing, and Securing Mechanism.
Year: 1894

page_text: Date of Application, 9th June, 1894
Complete Specification Left, 11th Mar., 1895-Accepted, 13th Apr., 1895
PROVISIONAL SPECIFICATION.
Improvements in Moveable Casement Opening, Closing, and Securing
Mechanism.
We, JOHN HOWARD CARTLAND, of Constitution Hill, Birmingham, Brass-
founder, and JOSEPH LILLY of 6 Hutton Street, Nechells, Birmingham, Art
Metal Worker, do hereby declare the nature of this invention to be as follows:-
:-
This invention relates to improvements in or connected with mechanism for
opening, closing and securing of moveable casements, and consists more particularly
in the combination therewith of improved means whereby the said mechanism may
be securely and automatically locked at any position in its travel, and may be
applied to such casements whether hinged at the top, side or bottom.
It consists broadly as follows:-Upon the window frame is secured a bracket
to which is hinged the toothed bar or arm which is preferably bent or curved
somewhat so that when the casement is closed, it (the bar) shall fall near to or
parallel with the said casement.
Upon the moveable casement is also secured a bracket carrying a revolving cord
pulley having at its side a toothed pinion which gears into the teeth upon the bar
or arm aforesaid. Upon the opposite side of the cord pulley and upon or near its
periphery are provided equidistant notches or projections, and in conjunction with
such notches or projections a pendulous tumbler catch is pivoted to the bracket
having its projection or catch tooth so arranged, that when free to fall by its own
weight, it (the tooth) shall engage with the aforesaid notches or teeth upon the
cord pulley, and so retain or lock it in any position, and thereby lock the position
of the casement. Upon the pendulous tumbler is provided suitable guides or eyes
through which, or over, or against which, the operating cord shall act in such a
manner that upon pulling the said cord either to open or to close the casement, such
pulling shall first effect the release of the catch tooth from the notches or teeth
upon the cord wheel, when by continuing the pull of the said cord the opening or
closing of the casement is effected. Suitable bye pulleys or guides for the operating
cord may be employed where required to facilitate operation.
Dated this 8th day of June 1894.
CHARLES T. POWELL,
Applicants' Agent.
COMPLETE SPECIFICATION.
Improvements in Moveable Casement Opening, Closing, and Securing
Mechanism.
We, JOHN HOWARD CARTLAND, of Constitution Hill, Birmingham, Brass-
founder, and JOSEPH LILLY, of 6 Hutton Street, Nechells, Birmingham, 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 or connected with mechanism for

page_text: opening, closing and securing of movable casements, and consists more particularly
in the combination therewith of improved means whereby the said mechanism may
be securely and automatically locked at any position in its travel, and may be
applied to such casements whether hinged at the top, side or bottom.
In order to more clearly explain this our invention, we have appended hereunto
an illustrative sheet of drawings upon which are figures and numbers of reference,
similar numbers referring throughout the several views to the same thing or part.
Fig. 1, is a side view of the invention as seen when the casement is closed.
Fig. 2, is a plan view of the invention when the casement is closed.
Fig. 3, is a side view of the invention as seen when the casement is partly open.
Figs. 4 and 5, are detailed front and side views of the cord wheel and toothed
pinion.
Figs. 6 and 7, are detailed front and side views of the pendulous tumbler.
Fig. 8, is a side view of a modification of this our invention, as applied to the
operating of a skylight casement.
Fig. 9, is a plan of the said modification.
Figs. 10, 11 and 12, are detailed front, plan, and side views respectively of the cord
pulley &c. bracket, having reference to Figs. 8 and 9.
Figs. 13 and 14, are front and side views in detail of the pendulous lever shown
in Figs. 8 and 9.
In reference to Figs. 1 to 7 inclusive ;-15, is the window frame to which is
hinged the movable casement 16. Upon the window frame is secured the
bracket 17, to which is hinged at 18, the toothed bar or
arm 19, which is
preferably bent or curved somewhat so that when the cusement is closed, it (the
bar) shall fall near to or parallel with the said casement, as seen in Fig. 1..
Upon the movable casement 16, is also secured the bracket 20, carrying a
revolving cord pulley 21, having at its side a toothed pinion 22, which gears into
the teeth upon the bar or arm 19. Upon the opposite side of the cord pulley and
upon or near its periphery are provided equidistant projections 23. This cord
pulley and toothed pinion are carried in or upon suitable pivots or bearings in the
bracket 20. In conjunction with such projections 23, a pendulous tumbler 24, is pivoted
at 25, to the bracket 20, having a projecting catch or tooth 26, so arranged, that
when the tumbler is free to fall by its own weight, the tooth 26, engages with one
of the aforesaid projections 23, upon the cord pulley, and so retains or locks it in
that position, and thereby locks the position of the casement. Upon the pendulous
tumbler is provided suitable guides or eyes 27, 28, through which, or over, or against
which, the operating cord 29, shall pass.
Its action is thus :-In its pormal condition, by reason of the greater weight of
the tumbler 24, being upon the one (right hand) side of the pivot 25, (looking at
Fig. 1) the part 30, rests upon the part 31, of the bracket 20, and while in that
position, presents the projection 26, in opposition to one of the teeth 23, see Figs. 1
and 2, and thereby prevents the rotation of the cord wheel and toothed wheel 22,
consequently the casement is locked in any position where this takes place. It will
be noticed Fig. 1, that the projection 23, and tooth 26, are about radial to the pivoted
centre 25, of the tumbler 24, and it is desirable it should be so as far as convenient.
By now pulling the cord 29, the tumbler 24, is part rotated so that the tooth 26,
is moved out of the line of travel of the projections 23, upon the cord wheel, and
consequently, by continuing to pull the cord the wheels 21 and 22, are rotated,
and the casement opened, until the cord is let go, when the tumbler will again fall
into its locking position as before explained. By pulling the cord 29", the tumbler
is again part rotated so as to bring the tooth 26, out of line with the projections 23,
and by continuing to pull it, the wheel 22, is rotated in the opposite direction and
the casement is closed.
In Figs. 8 to 14, we illustrate a modification of this our invention, in which we
provide that the projections 23, shall engage with the fixed catch 26, as follows:-
The bar 19, in this case is straight, and connected by bracket 17, to the case-
ment 16. The bracket 20°, has open or slot shaped bearings at 32. The wheels 21

page_text: and 22, are carried upon the spindle 33, which latter turns in the bearings 32. To
this spindle 33, is rigidly attached the lever 24", having the fulcrum hole 34,
which oscillates upon the fixed stud 35, in the bracket 20°, and is there secured by
the screw nut 36.
It will now be seen that in its normal position, the tooth 26*, engages with the
projections 23, and thereby prevents the rotation of the wheels 21, and 22". By
now pulling the cord 29, the lever 24°, is first pulled forward in such a manner
that the spindle 33, with the wheels thereon is lifted so that the projections 23°, are
quite clear of the retaining tooth 26%, when the said wheels may be rotated and the
casement 16, raised or lowered as desired, by the cords 29 or 29° as the case may
be. Upon letting go the cords, the overhanging weight of and upon the pendulous
lever 24, causes the projections 23" to again engage with the tooth 26°, and checks
any further movement.
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 the opening, closing and securing of movable casements
the combination with the bracket 17, and bar 19, of the wheels 21 and 22,
having projections 23, engaging with tumbler 24, by means of a catch or tooth 26,
the whole constructed and operating as set forth and shown.
2. In mechanism for the opening, closing, and securing of movable casements,
the modified combination with the bracket 17, and bar 19, of the wheels 21",
and 22, having projections 23*, and carried upon the lever 24*, such projections
engaging with a retaining tooth 26°, as set forth and shown.
Dated this 9th day of March 1895.
CHARLES T. POWELL,
Applicants' Agent.