An Improved Apparatus for Opening, Adjusting, and Closing Fanlights, Skylights, Trapdoors, and the like.
Year: 1893

page_text: Date of Application, 6th Jan., 1893
Complete Specification Left, 11th Feb., 1893-Accepted, 29th Apr., 1893
PROVISIONAL SPECIFICATION.
An Improved Apparatus for Opening, Adjusting, and Closing
Fanlights, Skylights, Trapdoors, and the like.
I CHARLES EDWARD JACKSON of 23 Wormwood Street, London, E.C. Solicitor
do hereby declare the nature of this invention to be as follows:-
This invention is intended for such fanlights greenhouse-lights and trapdoors
as are hung on hinges; and it provides a simple and effective method of opening
and shutting the same, by means of a lever, of appropriate thickness and length,
made of strong wood, or of iron, or brass, or other suitable metal, working on a
pivot, (formed by a strong screw or pin), placed through a hole in or near the
centre of the lever, (according to the purpose for which the apparatus is required)
and fixed into the sash bead or into the window frame, thus forming a sash bead
in itself. There is an eye at each end of the lever, and the fanlight, greenhouse-
light or trapdoor (as the case may be) is easily opened or shut by means of a
cord fastened to such eyes. And a small wheel can be fitted in one end of the
lever, to facilitate the working, a thin ordinary plate of metal being fixed on the
face of the side style of the fanlight &c. for the wheel to run upon.
Dated in 6th d...
1009
C. E. JACKSON.
COMPLETE SPECIFICATION.
An Improved Apparatus for Opening, Adjusting, and Closing
Fanlights, Skylights, Trapdoors, and the like.
I CHARLES EDWARD JACKSON of 23 Wormwood Street in the City of London
Solicitor 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 is intended for such fanlights greenhouse-lights skylights lantern-
lights trapdoors and the like as open outwards; and it is shown in the accompanying
drawings. It provides a simple and effective method of opening, adjusting and
closing such fanlights &c. by means of a lever of a length breadth and thickness
varying according to the weight of the fanlight or other like object to be opened,
such lever being made of steel, iron, brass or other suitable metal, or of hard wood,
and working on a pivot, as the fulcrum thereof, formed by a strong screw or pin
(marked A on drawings) placed through a hole made in or near the centre of the
lever (according to the particular purpose for which the apparatus is required).
The pivot is fixed against the side of the window-frame, or other the opening in
which the fanlight or other like object to be lifted or opened is hung. When the
lever is made of metal it is attached to a metal-plate (B) with a collar to revolve
upon; and the plate is screwed on to the sash-bead or side of the opening as afore-
said. A. cord is fastened to an eye (C) at the end of what is generally known as the
"power's arm
"of the lever, and at the end of the other arm (or "weight's arm"),
there is a small wheel (D), which revolves in a slot. And a thin plate of metal (E)
is fixed on the side-style, or face, of the fanlight (or other like object), for the
wheel to run upon, thus facilitating the working of the lever; and this running-
plate is provided with a stop-end (F) to prevent the lever from being pulled too
far and becoming fixed.
The fanlight or other like object to be dealt with is easily opened by pulling the
cord and can be adjusted at any point by making fast the cord to a cleat-hook or

page_text: holdfast fixed below; and is closed by releasing the cord and pulling the other end
thereof which is attached to an eye (H) fixed into the bottom rail or lower part of
such object; and can be kept shut or fastened by making fast such cord to the said
cleat-hook or holdfast. Instead of this last mentioned eye one (K) is sometimes
fixed at the other end of the lever (just by the wheel), for use in the case of
opening and shutting objects hung on pivots.
The apparatus can be made both right hand and left hand and should be used
double (ie., one on each side) when required for heavy objects. It can be made in
all sizes and of various patterns. For a fanlight or side light of a greenhouse or
lantern light (Fig. 1) hung on hinges on the top rail the lever should be used with
the power's arm shorter than the weight's arın, in case a blind is wanted to be let
down when the light is opened, as a long arm would obstruct the working of the
blind. The lever should be fixed high up near the top of the opening, and the eye
for the cord to be attached to for closing will be fixed in the bottom rail of the
light.
For a greenhouse ventilating light or slanting skylight (Fig. 2) hung on hinges
on the top-rail, the lever should be rather longer and be used with both arms
equal.
For a pivot fanlight (Fig. 3) the lever should also have equal arms and be fixed
in the middle of the side of the opening in a line with the pivot on which the light
is hung; an eye is wanted at each end of the lever for the cord to be attached to;
and the wheel is not necessary, both ends of the lever being simply rounded off
smoothly.
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 :-
The above described new combination of known things forming an improved
apparatus or contrivance for opening adjusting and closing such fanlights green-
house-lights skylights as open outwards, and for trapdoors and the like; all as
herein described and shewn in the accompanying drawings.
Dated this Eleventh day of February 1893.
TACKSON
C. E.
T
CKSON.