IMPROVED MEANS OF FORMING JOINTS
Year: 1866

page_text: Christopher Street, Hatton Garden, in the County of Middlesex,
Cabinet Joiner, for the Invention of "IMPROVED MEANS OF FORMING JOINTS
ΟΙ hristopher Street, Hatton Garden, in the County of Middlesex,
Cabinet Joiner, for the Invention of "IMPROVED MEANS OF FORMING JOINTS
BETWEEN SASHES, DOORS, DRAWERS, AND OTHER STRUCTURES, AND THE FRAMES
IN WHICH THEY MOVE OR ARE FITTED."
PROVISIONAL SPECIFICATION left by the said John Richard Cadman
'at the Office of the Commissioners of Patents, with his Petition, on the
12th November 1866.
I, JOHN RICHARD CADMAN, of the Firm of John Drew, of. Christopher Street,
Hatton, Garden, in the County of Middlesex, Cabinet Joiner, do hereby declare
the nature, of the said Invention for "IMPROVED MEANS OF FORMING JOINTS.
BETWEEN SASHES, DOORS, DRAWERS, AND OTHER STRUCTURES, AND THE FRAMES IN
WHICH THEY MOVE OR ARE FITTED," to be as follows:-
My Invention consists in forming joints as follows:-Around the inside of
the frame in which a sash, door, drawer, or other structure moves or is fitted
I cut a dovetailed or other shaped groove or recess, and in this groove I. fit
a tube or cushion of india-rubber or other suitable yielding and elastic material;
then upon or against the tube or cushion I.fit a bead of ebony, metal, wood,.
or.other suitable hard material, which projects from the frame like an ordinary
bead, but can be forced inwards owing to the elasticity of the tube or. cushion
behind it; the sash, door, or other structure fitted in the frame is cut with a
"
Price 1
i

page_text: groove corresponding to the bead, and the elasticity given to the bead by the
tube or cushion behind it forms an air-tight joint, and at the same time
prevents the sash or other structure bearing upon or rubbing the wood of the
frame, and compensates for any shrinkage in the material of the frame, or of
the sash or other structure. Sometimes I reverse the position of the bead
and the elastic tube or cushion, that is to say, I fit them in a groove round
the edge of the sash or other structure, a groove being cut in the frame to
receive the bead.
SPECIFICATION in pursuance of the conditions of the Letters Patent, nied
by the said John Richard Cadman in the Great Seal Patent Office on
the 11th May 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
RICHARD CADMAN, of the Firm of John Drew, of Christopher Street, Hatton-
Garden, in the County of Middlesex, Cabinet Joiner, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twelfth day of November, in the year of
our Lord One thousand eight hundred and sixty-six, in the thirtieth year
of Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said John Richard Cadman, Her special licence that I, the
said John Richard Cadman, my executors, administrators, and assigns,
or such others as I, the said John Richard Cadman, my executors,
administrators, and assigns, should at any time agree with, and no others
from time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend, within
the United Kingdom of Great Britain and Ireland, the Channel Islands, and
Isle of Man, an Invention for "IMPROVED MEANS OF FORMING JOINTS BETWEEN
SASHES, DOORS, DRAWERS, AND OTHER STRUCTURES, AND THE FRAMES IN WHICH THEY
MOVE OR ARE FITTED," upon the condition (amongst others) that I; the said
John Richard Cadman, my executors or administrators, by an instrument in
writing under my, or their, or one of their hands and seals, should particu-
larly describe and ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause the same to be filed in the
Great Seal Patent Office within six calendar months next and immediately
after the date of the said Letters Patent.
NOW KNOW YE, that I, the said John Richard Cadman, do hereby
declare the nature of my said Invention, and in what manner the same is to be

page_text: performed, to be particularly described and ascertained in and by the following
statement thereof, reference being had to the Drawings hereunto annexed,
that is to say:-
My Invention consists in forming joints as follows:-Around the inside of
the frame in which a sash, door, drawer, or other structure moves or is fitted
I cut a dovetailed or other shaped groove or recess, and in this groove I fit a
tube or cushion of india-rubber or other suitable yielding and elastic material;
then upon or against the tube or cushion I fit a bead of ebony, metal, wood,
or other suitable hard material, which projects from the frame like an ordinary
bead, but can be forced inwards owing to the elasticity of the tube or cushion
behind it; the sash, door, or other structure fitted in the frame is cut with a
groove corresponding to the bead, and the elasticity given to the bead by the
tube or cushion behind it forms an air-tight joint, and at the same time
prevents the sash or other structure bearing upon or rubbing the wood of the
frame, and compensates for any shrinkage in the material of the frame, or of
the sash or other structure. Sometimes I reverse the position of the bead
and the elastic tube or cushion, that is to say, I fit them in a groove round
the edge of the sash or other structure, a groove being cut in the frame to
receive the bead.
"
The accompanying Drawings represent my Invention applied to various
purposes, the same letters of reference indicate the same parts in all th
the
Figures.
Figure 1 represents in sectional view the application to the bottom rail of
a sliding sash. A is the bottom rail, and B the sash; in the rail A is a
dovetailed or undercut groove a, in which a tube b of india-rubber is fitted; c is
a bead of ebony or other suitable material fitted upon the tube b, and preferably
secured thereto by glueing or otherwise; the bead c projects like an ordinary
bead, but can be forced in, owing to the elasticity of the tube b. In the sash B
is a groove d corresponding to the bead c. As before mentioned the elasticity
given to the bead c by the tube b forms an air-tight joint, prevents the sash B
bearing upon or rubbing against the wood of the rail A, and compensates for
any shrinkage in the material of the sash B or of the rail A.
Figure 2 is a sectional view showing my joint applied to the bottom rail of
an opening sash. When the sash B is closed the bead c and tube b are in
the form seen in Figure 1, but as the sash is being opened the tube b is forced
into the undercut portion of the groove a, and the bead c is depressed suffi-
ciently to allow the sash to pass. When the sash is again closed the tube and
bead return to their normal position. The edge e of the sash is rounded to
allow it to readily press down and pass over the bead c while being closed.
.

page_text: Figure 3 is a horizontal section showing my Invention applied to the stiles
of window sashes. A is the stile, and B, B, are the sashes.
Figure 4 shows the application to the meeting rails of sashes. A is the
meeting rail of the inner sash, and B that of the outer sash.
Figure 5 shows the application to the bottom rail of a sash. B is the sash,
and A the beading above the bottom rail C.
Figure 6 shows the application to drawers. A is the upper part of the
front end of a drawer, and B its frame. Figure 7 shows the application to a
meeting joint, Figure 8 to a hinge joint, and Figures 9 and 10 respectively
to two forms of counter case joint.
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that I claim, forming joints
between sashes, doors, drawers, or other structures, and the frames in which
they move or are fitted, substantially in manner herein-before described and
represented in the accompanying Drawings.
In witness whereof, I, the said John Richard Cadman, have hereunto
set my hand and seal, this Eleventh day of May, One thousand eight
hundred and sixty-seven.