AN IMPROVED DEAD WEIGHT LATCH AND STAY FOR REGULATING AND SECURING FAN AND HOPPER LIGHT WINDOWS VENTILATORS AND ANALOGOUS ARTICLES
Year: 1886

page_text: BOOKLIS
and Hopper Light windows, ventators, au
analogous Articles.
We EDWIN VERITY, and JOSHUA MARLAND VERITY, of Call Lane, Leeds,
Ironmongers, and BENJAMIN BANKS, of Lees Yard, Meadow Lane, Leeds, Brass
Worker, do hereby declare the nature of our invention for AN IMPROVED DEAD
WEIGHT LATCH AND STAY FOR REGULATING AND SECURING FAN AND HOPPER
LIGHT WINDOWS VENTILATORS AND ANALOGOUS ARTICLES, to be as follows:-
We first construct the latch of Brass, Iron, or other suitable material, by making
a light framework wherein we fix a weighted catch, which will be fixed to the
window head or frame, in such a position that, when the window is closed, the
weighted catch will fall down and hold the window secure, and fastened in its
closed position. We next construct a Ring, in which the hook of the Rod or
window stick is to be inserted, when the window is to be opened, closed, or
otherwise regulated, and which will be fixed on the opening part; and, attatched
to this ring, we fix a short arm, which, at the time the ring is moved, will raise
the weighted catch, and allow the window to be opened. We next construct the
stay, for holding the window in the desired position, of cast or wrought Brass or
Iron, having suitable notches or openings for regulating to varying distances, and
at each end we fix or have cast on, studs or pins for actuating the tumbler or
catch, which goes into the notches or openings, for holding the window in different
positions. One end of this stay works loose on a stud or pin, and is secured by
screws to the frame or fixed part of the window.
We next construct the tumbler or moveable catch which is secured to opening
part of window, having on one of its sides a groove, in which works a pin which
is fixed on the face of a lever, in such a position that, when the window is opened
to its full extent, this lever will come in contact with the pin or stud at the end of
Di Q71

page_text: the stay, and turn the tumbler or catch partly round, so that the catch will come
in contact with the various notches on the arm or stay, and hold the window in
different positions. It should now be observed that when the window is closed the
stay or arm will fall down flush into suitable openings made in the wood work,
and at the same time come in contact with the pin or stud at the opposite end of
the stay, by which means the moveable tumbler or catch will be turned partly
round, and by this action thrown out of gear and clear of the notches in the stay,
so that, when the window is again opened, this catch or tumbler will ride over
the notches in the stay, until it again comes in contact with the pin at the end of
the stay, and is thrown again into action for regulating to the desired opening.

page_text: Securing Fan and Hopper Light Windows, Ventilators, and
analogous Articles.
We, EDWIN VERITY and JOSHUA MARLAND VERITY, of Call Lane, Leeds,
Ironmongers, and BENJAMIN BANKS, of Lees Yard, Meadow Lane, Leeds, Brass
Worker, do hereby declare the nature of our said invention and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement :-
The object of our invention is to manufacture an improved form and arrange-
ment of fan-light stay; which improvement is applicable to other analogous
purposes.
Our invention consists of a dead weight latch: a serrated link: a specially
formed moveable catch or lock in and through which the link works; and a short
lifting lever with a ring attached thereto, for lifting the dead weight latch and
releasing the fan-light.
And in order that our said invention may be particularly described and
ascertained, reference is hereby made to the accompanying drawings, in which
similar letters of reference indicate corresponding parts.
Fig. 1 is an elevation, partly in section, shewing the application of our invention
to an ordinary fan-light, the dead-weight latch being fitted into the lintel, as
shewn.
Fig. 2 is a similar view, shewing the lock fixed to the face of the lintel.
Fig. 3 is an enlarged view of the dead weight latch and lifting lever, shewing
the sash locked.
Fig. 4 is a view of the underside of the dead weight latch.
Fig. 5 is a view of the lifting lever and ring.
Fig. 6 is an enlarged side view of the link.
Fig. 7 is a side view of the lock or catch, and Figs. 8 and 9 are inside views of
the same.
a is the lintel, b is the fanlight opening, c is the stile of the sash or fanlight,
d is the dead weight latch, e is the lifting lever for lifting the latch and releasing
the fanlight. f is the link, and g the lock, for engaging the lever.
When the fan light is being closed, it lifts the dead-weight d', and this weight,
being pivotted at d², then immediately falls into the box c¹, forming part of the
attachments of the lifting lever e, and thereby locks the fan-light sash in position,
as shewn in Fig. 3.
When it is desired to open the fanlight, the hook is inserted in the ring e², and
the drawing down of the ring raises the lever e, the rising of which immediately
raises the weight d'; the fan light sash being then free, the hook in the ring e³ is
utilised in opening the sash. A cord may be applied to the ring e², instead of a
book, or,
if accessible, it may be opened by hand.
When the sash is opened as aforesaid, the lock g is in the position shewn in
Fig. 8, and the link frides over the tumbler has the sash falls, until the block m,

page_text: cast on the lever f, comes in contact with the lever k in the lock g. The block m
then moves the lever k to the position shewn in Fig. 9; this movement throws
down the tumbler h by means of the pin p, which traverses the slot o, formed in
the tumbler h: the pin p being fixed in the lever k; on the tumbler h falling to
the position shewn in Fig. 9, the ratchet teeth f¹ of the link ƒ are able to become
engaged with the fixed pawl i, whereby the sash can be held by any one of the
teeth f¹.
On the sash being again closed the block n comes in contact with the upper end
of the lever k, and drives it from the position shewn in Fig. 9 to the position
shewn in Fig. 8. The link f then falls to a vertical position, the gap f³ in the
link being provided to accommodate the stud q, when in that position. r is a
cover plate to the lock or latch, which acts as a means of securing the mechanism
and guiding the link f.
Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed we declare that what
we claim is :-
1. The method of and means and appliances for opening, closing and securing
fan and hopper light windows, ventilators and analogous articles, substantially as
herein before described and shewn on the drawings.
2. The combination of the dead weight latch d, lever e, and ring e², or equivalent
device for lifting the latch d, substantially as and for the purposes herein before
described and shewn on the drawings.
3. The combination of the link f, and lock g, fitted with the tumbler h, fixed
pawl and lever k, severally operating substantially as and for the purposes
herein before described and shewn on the drawings:
Dated 20 1000