IMPROVEMENTS IN FITTING AND HANGING OF WINDOW SASHES AND MAKING FRAMES FOR SASHES.
Year: 1873

page_text: LETTERS PATENT to Brice Tydeman, Carpenter and Joiner, of 31,
Gloster Street, Hackney Road, for the Invention of "IMPROVEMENTS
IN FITTING AND HANGING OF WINDOW SASHES AND MAKING FRAMES FOR
SASHES.
Scaled the 8th August 1873, and dated the 2nd April 1873.
PROVISIONAL SPECIFICATION left by the said Brice Tydeman at tho
Office of the Commissioners of Patents, with his Petition, on tho
2nd April 1873.
I, BRICE TYDEMAN, Carpenter and Joiner, of 31, Gloster Street,
Hackney Road, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN FITTING AND HANGING OF WINDOW SASHES AND MAKING
FRAMES FOR SASHES," to be as follows:-
This Invention has for its object the better hanging of window sashes
for the purposes of removing them from the frames or for cleaning,
repairing, or painting the sashes and frames. For these purposes two
grooves are made in cach pulley stile of the sash frame parallel with

page_text: each other and with the edge of the pulley stile. A corresponding
groove is made in the edge of each stile of each sash, into which grooves
wood tongues or laths are fitted, and these tongues or laths can be
moved partly into the grooves in the pulley stiles, so that part of each
tongue or lath is in the groove in the stile of sash and part is in the
groove in pulley stile of sash frame. These tongues or laths are kept in
the position required by means of two or more countersunk headed or
thumb screws, working in slotted plates let in flush with the face of
sash, one end of slot in each plate is countersunk so as to contain and
confine the head of screw in required position. These sashes are also
hung on centres which centres are made air-tight and are not like the
centres in use at present, one part of each centre is fixed to one of the
stiles of the sashes, the other part of the centre is fixed to one end of
a catgut or other line, and said part of said centres works or travels
in grooves in pulley stiles of sash frame. When the wood tongues or
laths are drawn out of the grooves in the pulley stiles and are drawn
into the grooves in the stiles of the sashes, a slight pressure will cause
the sash to revolve on its centres when the outside may be turned into
the room for the purposes of cleaning, after being cleaned it can be put
back, and the laths or tongues put as before mentioned. These sashes
can also be hung one to the other without weights. The frames can
also be fixed at any angle.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Brice Tydeman in the Great Seal Patent Office
on the 23rd September 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, BRICE
TYDEMAN, Carpenter and Joiner, of 31, Gloster Street, Hackney Road,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Second day of April, in the year a
of our Lord One thousand eight hundred and seventy-three, in the
thirty-sixth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto him, the said Brice Tydeman, Her special licence
that he, the said Brice Tydeman, his executors, administrators, and

page_text: or laths are drawn out of the grooves in the pulley stiles of sash frames
and are drawn into the grooves in the stiles of the sashes, a slight
pressure will cause the sash to revolve on its centres, when the outside
may be turned into the room for the purposes of cleaning the glass or
painting the sash; after being cleaned the sash can be turned back and
the tongues or laths put as before described, that is partly in each
groove, so that the sash will slide up and down. These sashes can also
be hung without weights; when they are so hung one end of a catgut
line is passed through one part of the centre as before mentioned, and
passed over a pulley let flush into the face of pulley stile of sash frame,
the other end of catgut or other line is attached to a screwed bolt with
a square head fitting in the groove of pulley stile, which bolt passes
through part of centre, same as catgut or other line, and a nut is
provided to each bolt to regulate the length of line so that the sashes
may hang exactly to meet and to fit at top and bottom of frame, the one
sash balancing the weight of the other sash so that when the bottom
sash is lifted up the top sash comes down. When these sashes are so
hung a draft board is attached to the bottom sash by means of a spring
catch, and is made to detach itself by means of a guide, the use of the
draft board is to allow the top sash to be open a little at the top and not
allow any draft at the bottom of the bottom sash, which would be open
if it was not for the draft board. These frames can be fixed at any
angle in roofs and dormers where it is difficult to fix them in an upright
position. For explaining more fully I append Drawings which I will
now describe.
Fig. 1, plan of pulley stile and stiles of sashes; Fig. 2, elevation of
pulley stile shewing axle pulley with line and screw for regulating
length of line, and part of centres fixed to line; Fig. 3 is a section of sill
of sash frame and section of draft board and section of bottom rail of
bottom sash; Fig. 4, sectional elevation shewing centre and tongue
fitted to same; Fig. 5, elevation of edge of stile of sash with part of
centre fixed to same; Fig. 6 shews slotted plate fixed on sash.
A, plan of pulley stile; B, plan of stile of bottom sash; C, plan
of stile of top sash; D, grooves in pulley stile; E, wood tongues or
laths; F, countersunk headed screws; G, slotted plate for screws F;
H, axle pulley; I, part of centre attached to line; K, part of centre
fixed to sash; L, metal nut for screws F; M, draft board; N, nut for

page_text: screw for regulating length of line; O, section of sill of frame;
P, section of bottom sash; Q, screwed bolt for regulating length
of line.
In witness whereof, I, the said Brice Tydeman, have hereunto set
my hand and seal, this Twenty-third day of September One
thousand eight hundred and seventy-three.
BRICE TYDEMAN. (L.S.)