IMPROVEMENTS IN THE CONSTRUCTION OF CASTORS FOR FURNITURE AND OTHER THINGS
Year: 1884

page_text: I WILLIAM CATLEWGH JONES of 26 Duke Street Chester in the County of
Chester do hereby declare the nature of my said Invention for IMPROVEMENTS
IN THE CONSTRUCTION OF CASTORS FOR FURNITURE AND OTHER THINGS to be as
follows that is to say :-
This Invention relates to improvements in the Construction of Castors whereby
a round Ball forms the Castor instead of the wheel ordinarily used and in which
the ball is placed Centrally instead of being thrown out of Centre as in that
generally employed.
In carrying out my Invention I employ a Round Ball which is fitted into a
Cylindrical chamber fitted near the bottom with small Balls upon which small Balls
the larger one (forming the Castor) revolves.
A few sinall Balls may also be placed so as to bear against the larger one in its
lower half to take any side pressure and reduce the friction consequent upon same.
A portion of the large Ball projects through a Circular hole in the bottom of the
Circular Chamber so as to prevent it falling out.
In a castor constructed according to my invention if a pressure be brought to
bear vertically upon the Castor the strain will be thrown direct upon the small
Balls in the upper part of the circular chamber and if a horizontal pressure be
brought to bear upon it at the same time the large Ball will move freely in every
direction as it runs upon the small balls.
Dated this 5th day of To 1001

page_text: I, WILLIAM CATLEWGH JONES of 26 Duke Street in the City and County of
Chester Fellmonger do hereby declare the nature of my said invention for
IMPROVEMENTS IN THE CONSTRUCTION OF CASTORS FOR FURNITURE AND OTHER
THINGS and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
This invention relates to improvements in the construction of Castors whereby
a round Ball forms the Castor instead of the wheel ordinally used and in which
the ball is placed centrally instead of being thrown out of centre as in that
generally employed.
In carrying out my invention I employ a round ball which is fitted into a
cylindrical chamber fitted near the bottom with small balls upon which small Balls
the larger one forming the Castor revolves.
A few small Balls may also be placed so as to bear against the larger one in its
lower half to take any side pressure and reduce the friction consequent upon
same. A portion only of the large ball projects through a circular hole in the
bottom of the circular chamber so as to prevent its falling out.
In a Castor constructed according to my invention if a pressure be brought to
bear vertically upon the castor the strain will be thrown direct upon the small balls
in the upper part of the circular chamber and if a horizontal pressure be brought to
bear upon it at the same time the large ball will move freely in every direction as
it runs upon the small balls.
But to make my invention better understood I will proceed to describe the same
by reference to the accompanying drawing in which Figure 1 is a Longitudinal
Section and Figure 2 a Section through Line y. z of Figure 1.
A is a casting, one end of which E fits the leg of the piece of Furniture to which
it is fixed and the other end is formed into a Cylindrical Chamber in which a
Ball B fits easily.
At the top of this Cylindrical Chamber a groove is formed and in this Groove
are placed a number of small Balls in such a manner that the larger Ball when in
use revolves upon them.-A few small Balls may also be placed as shown at D to
reduce any friction caused by side pressure.-Having now described the nature of
of my said invention, and the best means with which I am acquainted for carrying
the same into effect, I would have it understood that I do not confine myself to
the precise details herein laid down and shewn in the Drawing, as the same may
be varied without departing from the peculiar character of my invention, but what
I do claim is,―
Firstly. The construction and employment of a Castor in which a large Ball
revolves against a number of small balls placed in a circular groove in the manner
herein described.
Secondly. The employment of a number of small balls placed at the side of the
large Ball so as to counteract any friction arising from side pressure.
In witness whereof I the said William Catlewgh Jones have hereto set my
hand and Seal this Third day of October in the Year of our Lord one thousand
eight hundred and eighty four.