Improvement in the Manufacturing and Constructing of Ball Castors for Furniture and other Portable Articles.
Year: 1886

page_text: Date of Application, 4th Mar., 1886.
Complete Left, 2nd Dec., 1886.
Complete Accepted, 11th Jan.. 1887.
Improvement in the Manufacturing and Constructing of Ball Castors
for Furniture and other Portable Articles.
I JOSEPH TAYLOR Ironmonger 12 Great Hampton Street Birmingham do hereby
declare the nature of this invention to be as follows:-
I stamp from a metal blank a circular ring or frame slotted to receive anti friction
rollers, this I place inside the castor and the hall revolves underneath. The cup is formed
in a similar manner by stamping from a blank piece of metal or from tube pressed or
drawn into the shape required, my invention consists further in fixing the wire ring
that carries the rollers by slitting a portion of the metal blank and turning it over the
wire and thereby forming a clip.
My invention has for its object Improvement in the Manufacture and construction
of Ball castors for furniture or other portable articles where the least possible friction
is required to allow the said articles to be moved about in any direction. In Ball
castors of ordinary construction where the body is made of Brass having a roller ring
or circular frame either cast with the body or cast separately and fitted into the body,
the said roller ring or frame is fitted with a number of rollers which forms a bearing
for the ball, and allows it to roll freely-thus reducing the friction, the ball is retained
in position by a cup having an open end which is made of cast-brass and is fitted to the
body of the castor by soldering shrinking or by screwing the cup into the body of the
castor-The production of these roller rings or circular frames and cups necessitates
labour and extra material I will describe my improvements as applied to the production
of the roller ring or circular frame and also the cups, according to my invention I
produce the said rings by the process of stamping or pressing. I take a circular blank of
sheet metal which is pierced, the centre being removed to a certain number of openings
to correspond with the number of rollers required are also pierced.
The metal blank being placed between the dies of a stamp or press is shaped into the
required form The cup is formed in a similar way by stamping or pressing or drawing
through My invention consists further in fixing the wire ring or axle which carries
the rollers; this is usually fitted to the roller ring by springing or by pressing a
portion of the metal over it. According to my invention I slit certain portions of the
metal blank which forms the roller ring when the wire ring is placed into position I
turn over the slitted parts form a clip and hold the wire axle firmly in position.

page_text: for Furniture and other Portable Articles.
I JOSEPH TAYLOR of 12 Great Hampton Street Birmingham in the County of Warwick
Ironmonger 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 :-
My invention has for its object Improvements in the manufacture and construction
of Ball Castors for furniture or other portable articles where the least possible friction
is required to allow the said articles to be moved about in any direction. In Ball
Castors of ordinary construction where the body of the Castor is made of Brass having
a roller ring or circular frame either cast with the body or cast separately and fitted
into the body, the said roller ring or frame is fitted with a number of rollers which
forms a bearing for the ball and allows it to roll freely; thus reducing the friction, the
ball is retained in position by a cup having an open end which is made of cast brass
and is fitted to the body of the castor by soldering, shrinking, or by screwing the cup
into the body. The production of these roller rings or circular frames and cups
necessitates labour with extra material.
I will describe my improvement as applied to the production of the roller ring or
circular frame and also the cups; according to my invention I produce the said rings
by the process of stamping or pressing I take a circular blank of sheet metal which is
pierced, the centre being removed a certain number of openings to correspond with the
number of rollers required are also pierced.
The metal plank being placed between the dies of a stamp or press, is shaped into the
required form.
The Cup is formed in a similar way of stamping or pressing or drawing through.
My Invention consists further in fixing the wire ring or axle which carries the
rollers; this is usually fitted to the roller ring by springing, or by pressing a portion
of the metal over it. According to my invention I slit certain portions of the sheet
metal blank, which forms the roller ring, when the wire ring is placed into position,
I turn over the slitted parts, form a clip and hold the wire axle firmly in position.
In order that my said invention may be more clearly understood I will proceed to
describe it with reference to the accompanying drawings the same letters of reference
indicate the corresponding parts in the several figures of the drawings. Fig. 1 represents
an elevation and Fig. 2 a vertical section of an improved castor constructed according
to my said invention which are especially useful for tables or large articles of furniture,
a is the body of castor which is fixed to legs of tables &e. by screws. b is the cup which
is attached to the body by screws d. d. the cup holds the ball e in position and presses
it against the rollers e which forms an antifriction bearing by this means of attaching
the cup, it is very readily detached in case of any disarrangement with the internal
part by removing the said screws d. d. Fig. 3 shews a metal blank which is shaped
into the roller ring or circular frame. Fig. 4 shews the same blank with certain holes
pierced into it. are openings to allow the rollers to work in. gg are small portions slit
on the sides which form clip for the purpose of holding the wire ring or axle. Fig. 8

page_text: in position. Fig. 5 represents an elevation Fig. 6 a section and Fig. 7 a plan of the
roller ring or frame constructed according to my invention. The metal blank Fig. 3
being placed between the dies of an ordinary stamp or press is bent into the shape
shewn at Fig. 5, 6, and 7 the cut away parts forming openings for the reception of
the rollors. The curved or semicircular part h forms a bearing for the wire which
carries the rollers. Fig. 8 shews an ordinary wire axle with the rollers fitting loosely
thereon, I have shewn eight rollers but any number may be employed the wire axle k
is made to fit the curved part. Fig. 6 loosely and is held in position by the small
portion of metal g Fig. 4, 6, and 7 which being cut on the sides form when bent
over the wire a clip which holds the wire axle firmly in position and prevents any
disarrangement of the rollers. Fig. 9 is a section and Fig. 10 a plan of a complete
roller ring or frame with the wire axle and rollers fixed in position.
Having thus particularly described and ascertained the nature of my said
invention and in what manner the said is to be performed, I declare that what
I claim is :-
First. The construction of a sheet metal roller ring or circular frame made from a
circular blank of sheet metal by stamping or pressing substantially as described and
represented in Figs. 3, 4, 5, 6 and 7 of the annexed drawings.
Secondly. In the fixing of the roller axle, to the roller ring or circular frame by
bending over a portion of the sheet metal y substantially as described and represented
in Figs. 4, 6, 7 and 8 of the annexed drawings.
�