CERTAIN IMPROVEMENTS ON CASTORS FOR FURNITURE
Year: 1834

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
LUTTON, of Tudor Place, Tottenham Court Road, in the County of Middlesex,
Chair Maker, send greeting.
WHEREAS His present most Excellent Majesty King William the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Twenty-fifth day of November, in the fifth year of His
reign, did, for Himself, His heirs and successors, give and grant unto me, the
said James Lutton, His especial licence, full power, sole privilege and autho-
rity, that I, the said James Lutton, my exors, adiñors, and assigns, or such
others as I, the said James Lutton, 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 expressed, should and lawfully might make, use,
exercise, and vend, within England, Wales, and the Town of Berwick-upon-
Tweed, my Invention of "CERTAIN IMPROVEMENTS ON CASTORS FOR FURNITURE;"
in which said Letters Patent is contained a proviso that I, the said James
Lutton, 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
said Majesty's High Court of Chancery within six calendar months next
and immediately 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 James Lutton, do hereby declare that the nature of my said Invention,

page_text: and the manner in which the same is performed, are fully set forth and
ascertained in the following description and Drawing annexed (that is to
say):-
I form round the outside of the socket into which the leg of the piece of
furniture is fixed a projecting flanch or bearing sufficiently strong to resist
the weight intended to be borne by the castor, and I prefer that this flanch
be as near the upper or widest part of the socket as it can be; therefore I
form the moulding, which is usually made to strengthen the socket at its
mouth, into the said flanch which I have now described. To the bottom of
the said socket I attach a pin similar to those in the castors in ordinary use,
which pin is turned at the same time with the said flanch on the outside of the
socket in order that these two parts may be accurately concentric. To the
revolving frame or horn in which the wheel of the castor moves I attach a
ring or portion of a ring or collar, of dimensions suited to the outside of the
socket and the under side of the flanch or bearing, and concentric with the
centre hole of the horn, which fits and moves round upon the bottom pin whilst
the said ring moves round under and sustains the weight of the furniture.
This ring may be connected to the horn either by a plain diagonal brace in
the direction of the strain, as shewn in the annexed Drawing, Figure 1, or in.
any other direction or figure more agreeable to the taste of the manufacturer,
provided the attachment be sufficiently strong to resist the weight; or I con-
struct castors with round sockets without the said flanch or bearing, and I
make the weight to rest upon the horn by the bottom of the socket, whilst
the said ring or collar, attached as aforesaid to the horn, supports it by pressing
laterally against the outside of the said socket, which is turned concentrically
with the pin. When it is intended that the castor should suit a leg of some
other form than round, then I make the socket of the required form, but
make the flanch or bearing so large in diameter as to include the corners or
irregularities of such socket, or I make a part of the socket above the flanch
or bearing of such required shape; also, when it is intended that the castor
should be attached to the furniture by a flanch and screws, then I enlarge the
dimensions of the said flanch or bearing, and insert holes for screws, in the
enlargement to suit any particular part that may be required. To the sockets
last mentioned as adapted to particular purposes, the horn and collar made to
suit are obviously as applicable as to the castor with the round socket already
described.
Having fully described the nature and construction of my said improvements
on castors, I now request that it be clearly understood that the parts which I
claim as my Invention are, the flanch or bearing on the outside of the socket,

page_text: and the collar or ring so united to the horn as to support the weight when it
is laid on the wheel by the flanch bearing on the collar, and the lateral
pressure is sustained by the pin, or, when the weight is laid on the wheel, by
the bottom of the socket resting on the horn, and the lateral pressure is
sustained by the collar against the outside of the socket.
In witness whereof, I, the said James Lutton, have hereunto set my
Inrolled the Twenty-first day of May, in the year of our Lord One
thousand eight hundred and thirty-five.