Improvements in Furniture and other Castors.
Year: 1889

page_text: Date of Application, 8th Mar., 1889
Complete Specification Left, 5th Dec., 1889-Accepted, 8th Mar., 1890
PROVISIONAL SPECIFICATION.
Improvements in Furniture and other Castors.
I HERBERT GARLAND, of 2 Hilbre View, West Kirby, in the County of Chester,
Mechanician, do hereby declare the nature of my said invention to be as follows :-
:―
My invention relates to what are usually termed "ball" castors and consists in
certain novel means of mounting the ball in its carrying frame or holder and mounting
the holder on the socket or flange by which the castor is attached to the article
of furniture, in order to reduce the friction of the ball in its holder and to enable the
ball to move with perfect freedom in every direction and to enable the castor to
slightly incline in an opposite direction to that in which the article of furniture is
being moved.
A ball castor with the improvements according to my invention applied thereto
consists as follows. The ball which may be of any suitable material, such as earthen-
ware, glass, metal, or wood is carried in an inverted cup shaped frame or holder
which is slightly larger than the ball. This cup is provided with a metal ring against
which the ball bears, just above its horizontal axis, and the crown of the cup is
provided with a metal tube or ring which rests on the top of the ball. The ball
works on the ring and the end of the tube with very little friction. The lower portion
of the holder is provided with stops or claws to keep the ball in the cup.
To enable the castor to cant slightly when being moved, and thereby to facilitate
its working, the ball holder may be connected to the socket or flange (by which
it is fastened to the article of furniture) by means of a
"ball joint or rivet that
works in the top of the holder and allows the holder to cant in every direction, in
relation to the socket or flange.
Dated this 7th day of March 1889.
CHEESBROUGH & ROYSTON,
Applicant's Agents.
COMPLETE SPECIFICATION.
Improvements in Furniture and other Castors.
I HERBERT GARLAND of South Road West Kirby in the County of Chester
Mechanician do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement :-
This Invention has for its object a certain arrangement to facilitate the more
easy method of rotating a ball under pressure contained within a metal cup for
the purpose of being attached to articles of furniture or other bodies that require
moving with freedom.
The Invention may be understood by reference to the accompanying two sheets of
drawings.
Fig. 1 shews the ball in its carrying frame or holder A and mounting the holder
on the socket or flange B by which the castor is attached to the article of furniture.
The cup A is provided with a metal ring C against which the ball bears just above its
horizontal axis, and the crown of the cup is provided with a metal tube or ring D
which rests on the top of the ball. The ring C is cut away at the four points A 1
so as to reduce the friction when the ball is rotating. The metal ring D is also cut
away at the four points D 1 for the same object.
The cup or holder A is larger than the ball so that dust may be prevented
from adhering to it, which may be carried on the surface of the ball when in
motion. The lower portion of holder A is provided with stops or claws E to keep
LD

page_text: the ball in the cup. The castor Fig. 3 is provided with a screw thread so that it may
be attached to furniture without the aid of the socket B. The castor Fig. 4 is
provided also with a screw thread with moveable nut, so as to affix it to the
ordinary castor socket B Fig. 7 when desired. Fig. represents a means to
enable the castor to cant slightly when being moved and thereby facilitate its working.
The ball holder may be connected to the socket or flange, by which it is fastened to
the article of furniture by means of a ball joint or rivet F that works in the top of
the holder G and allows the holder to cant in any direction in relation to the socket
or flange. The metal ring H and the tube I are constructed the same as C and D
Fig. 1. The ball may be made of any suitable material such as earthenware glass
metal or wood.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare, that, what
I claim is,
First. That the introduction of the metal ring and tube bearing on the ball above
its horizontal axis which enables the ball. to travel more freely under pressure,
the ball remaining directly in the centre of the cup without being guided by
friction rollers substantially as and for the purpose described.
Second. That the cup is made larger than the ball, to enable it to travel without
coming into contact with the sides, which would tend to block the ball when rotating
under pressure being perfectly free to work in any direction, substantially as
described.
Third. That the introduction of a ball joint between the holder and socket, to
enable it to cant in any direction so as to assist the ball to rotate more freely under
pressure substantially as described.
Fourth. The herein described improvements in furniture and other castors whereby
the ball is made to travel in any direction as described.
Dated this the Fourth day of December Eighteen hundred and eighty-nine.
HERBERT GARLAND.