AN IMPROVED FASTENING TO BE APPLIED TO SASHES OR DINING TABLES
Year: 1801

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
BULLOCK, of Portland Street, Soho, in the County of Middlesex, Cabinet
Founder,.send greeting..
WHEREAS His present most Excellent. Majesty King George the Third;
in and by His Royal Letters Patent. under the Great Seal of the United
Kingdom of Great Britain and Ireland, bearing date at Westminster, the Eighth
day of October, in the forty-first year of His reign, for Himself, His heirs and
successors,, did give and grant unto me,, the said William Bullock,, His especial
licence,, full power, sole privilege and authority, that I, the said William-Bullock,
my, executors,, administrators, and assigns, by myself or themselves, or by my
or their deputy or deputies, servants or agents,, or such others as I,. the. said
William Bullock,, my executors, administrators, 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 expressed,, should and lawfully might make;, use, exercise,, and
vend; within that part of His said Majesty's United Kingdom called England,
His Dominion of Wales,. and Town of Berwick-upon-Tweed,. my, Invention
of "AN IMPROVED FASTENING TO BE APPLIED TO SASHES OR DINING TABLES;
in which said Letters Patent there is contained a proviso, obliging me, the said
William, Bullock, by an instrument in writing; under my hand and seal,, par-
ticularly to describe and ascertain the nature of my said. Iuvention,, and, in
what manner the same is to be performed, and to cause the sanie to be

page_text: inrolled in His said Majesty's High Court of Chancery within one calendar
month next and immediately after the date of the said recited Letters Patent,
as in and by the same, reference being thereto had, will more fully and at
large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
William Bullock, do hereby describe and ascertain the nature of my said
Invention, and in what manner the same is to be performed, by the Plan or
Drawing in the margin of these Presents, and as follows, that is to say :-
These fastenings are composed of two parts, the one part to be fixed on the
upper or back sash, the other on the lower or bottom sash; they may also be
applied to dining tables, or any other articles where two bodies are to be
fastened together. Figure 1: A, is a plate, which fixes on the upper or back
sash, of about three-quarters of an inch wide; B is a plate, which fixes to the
front or bottom sash; C is a back plate or rising edge on the back part of plate A,
about half an inch high, to which is fixed a strong spring D, near the end, as
shewn in the annexed Drawing; this spring reaches nearly to the other end
of the plate A, where is fixed an elevating screw or pivot on which the lever E
works and turns backwards and forwards; this lever is made about three-
eigths of an inch thick at the head where the screw or pivot passes through to
admit of the screw or pivot being steady, and about an inch and an half long,
or more, according to the thickness of the sashes, and is made thinner towards
the other end. In the head of the lever E, where it works upon the elevating
screw or pivot, is fixed a small wheel or roller in the angle, as shewn in the said
Drawing, which acts upon the spring D, and as the lever is turned backwards
or forwards the roller acts upon the spring, which takes off the friction and
gives it a lively motion; by passing the center of the screw or pivot it either
keeps the lever quite back on the plate A, or it presses it forwards and tends
to fasten the sashes or other bodies to which it is applied together. At the
other end of the lever which passes under the circular hook F, on plate B, is
a rising part which passes round such circular hook and draws the two bodies
tight together, and on which rising part is fixed a knob or bandle. When the
lever is brought forward to fasten the sashes, the elevating screw or pivot
tends to press it down, by which it forces the top sash up and lower sash down,
and when unfastened the said elevating screw or pivot raises the lever so as to
make it work free from the plate, thereby preventing friction, and consequently
rendering it less liable to be out of order by painting or otherwise.
Figure 2 is a little lower in the rising edge C, or back of plate A, and
instead of the spring D being fixed to the back or rising part it has a strong
feather or common lock spring fixed to the bottom part of plate A, as shewn

page_text: in the said Drawing, Figure 2, and at the end of the lever which draws under
the hook F, instead of the round knob on the rising part of the lever, the end
is formed with a thumb piece to keep the fastener as flat as possible, as it is
intended for tables as well as sashes.
"
Figure 3 is intended for high windows that cannot be got at easily. Plate A
is to be fixed on the front or lower sash, and plate B, with the circular
hook F, on the top or upper sash. In the rising part of the lever which passes
round the hook F, instead of a knob or handle is a small hole to fix a line, which
line may pass over a small pulley fixed into any convenient part of the front sash
and draw through the meeting bar of the sash, and have a small tassel to draw
it, by which the fastener will be easily opened; and on the lever is a quadrant,
as at G, with a small hole in it to fix another line to pass through another
pulley on the other side of the fastener, by pulling which last-mentioned line
the fastener is fixed, as will be plainly seen upon reference to the said
Drawing, Figure 3; for the lever part of the fastener being fixed on the front
sash, causes the lines to be wholly free from having any communication with
the back sash on which the hook is fixed.
Figure 4 is for sashes or dining tables, and differs from Figure 1 in having
no back or rising part on plate A. The spring is a strong open one, as shewn in
the Drawing, Figure 4, which is fixed to the plate A, and is easily taken off,
as there is but one screw to take out at H, by which the lever can be dis-
engaged from the elevating screw or pivot, so as to clean the fastener or
to regulate it.by turning the lever one or more turns higher on the screw or
pivot where the sashes are not even, but the front sash is the higher, as is often
the case, so that the fastener is easily adapted to the window.
When used for tables, the screw or pivot is on the under side of the lever,
and the female screw in a box or socket on the under side of plate A, which
lets into the wood.
Figure 5 is the same as Figure 4, except that instead of the roller in the
head of the lever there is a link or chain connected with the head of the
lever and the end of the spring, which takes off the friction; but this method
cannot in general be used with so much advantage on sashes, as there
frequently is not room on them for the reception of plate A, on account of its
extra breadth; this Figure therefore is best adapted to tables or other flat bodies.
Figure 6 differs from Figure 1 in having no back or rising part on plate A,
and instead of a wheel or roller it has a small piece of steel or iron fixed in the
angle of the lever to act upon the spring as; these fasteners are generally of
brass, the steel prevents the lever wearing, and makes it more lively in its
action; the spring, which is straight, is fixed into plate A. These fasteners

page_text: may be made of brass, iron, steel, or any other material, or of any compound
or mixed metal, and of any size, shape, or form, according to what they are
wanted for, and in which either the wheel or screw may be occasionally
omitted, if desired. The lever may be raised or elevated from the plate when
drawn back by either a screw or pivot. with one, two, or, more threads, or by
any other inclined plane that may best suit the purpose of rising the same, or
they may be made with concealed springs.
In witness whereof,, I, the said, William Bullock, have hereunto set my
hand and seal, the Sixth day of November, in the year of our Lord
One thousand eight hundred and one: