CERTAIN IMPROVEMENTS IN WINDOW SASHES
Year: 1827

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
WRIGHT, late of Princes Street, Leicester Square, but now of Jobbin's Court,
Knightsbridge, both in the County of Middlesex, Engineer, send greeting.
WHEREAS His present most Excellent Majesty King George the Fourth
did, by His Letters Patent under the Great Seal of Great Britain, bearing
date at Westminster, the Eleventh day of October, in the year of our Lord
One thousand eight hundred and twenty-seven, in the eighth year of His reign,
give and grant unto me, the said John Wright, His especial licence that I, the
said John Wright, my executors, admors, and assigns, and such others as I,
the said John Wright, my exors, admors, or assigns, should at any time agree
with, and no others, from time to time and at all times during the term of
years therein mentioned, should and lawfully might make, use, exercise, and
vend, within England, Wales, and the Town of Berwick-upon-Tweed, my
Invention of "CERTAIN IMPROVEMENTS IN WINDOW SASHES;" in which said
Letters Patent there is contained a proviso that I, the said John Wright,
shall cause a particular description of the nature of my said Invention, and in
what manner the same is to be performed, to be inrolled in His Majesty's
High Court of Chancery within six calendar months next and immediately

page_text: after the date of the said in part recited Letters Patent, as in and by the same,
reference being thereunto had, will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
John Wright, do hereby describe the manner in, which my said Invention is
to be performed, by the following description thereof, reference being had to
the Drawings hereunto annexed, and to the figures and letters marked thereon
(that is to say):-
=
My said Invention is applied principally to French sashes, to prevent the
rain and air from driving under the sashes into the room, and is described in
manner following:-I sink a groove or mortice in the sill of a window frame,
immediately under the sashes and the whole length of the sill. I place a
metal frame in the groove containing a hollow bar; inside the hollow.bar
are two metal levers; when the sashes are open the bar is down nearly
flush with the sill. In the bottom of the sashes is a groove, and on one
sash I fix two bolts, worked by a rack or otherwise, and by the turn of
the handle in fastening the sashes it throws one bolt up and one bolt down
(the method of working the bolt I do not claim as my Invention). I have a
socket in the sill, close to the hollow bar, that receives the bottom bolt of
the sash. In this socket is a slide connected with the levers inside the
hollow bar by a pin screwed into the slide, and the projecting end of which
pin is made to rest upon the ends of the levers. When the sashes are open
the slide is kept flush with the surface of the sill by the weight of the levers
and the hollow bar, and by that means it keeps the dirt out of the socket when
the sashes are closed, and, by the action of turning the handle, the bolt presses
on the slide connected with the levers, and raises the hollow bar partly out of
the frame in the sill up into the groove in the bottom of the sashes, and by
that means the open joint between the sashes and the sill is cut off, and the
rain and air are prevented from driving in.
Figure 1 is à section of the sash, sill, hollow bar, and frame. A, the sash;
B, the groove in the sash; C, the sill; D, the frame let into the groove in the
'sill; E, the hollow bar; F, the levers inside the hollow bar.
Figure 2 is a section across the socket and bolt. The references in Figure 2
are the same as Figure 1, except G the bolt pressing on the slide H, into
which it screws the pin I. In this section the bolt is down in the socket, and
the pin I connected with the slide presses on the ends of the levers, and has
thrown the hollow bar up into the groove of the sashes.
Figure 3 shews the hollow bar, with one side removed in order to expose
the levers F, F. The pin I rests on the ends of the levers. K, K, are the
fulcrums. The other ends of the levers bear against the top of the hollow bar.

page_text: Inrolled the Second day of April, in the year of our Lord One thousand
eight hundred and twenty-eight.