Improvements in Casters for Furniture.
Year: 1890

page_text: Date of Application, 29th Jan., 1890
Complete Specification Left, 29th Oct., 1890-Accepted, 29th Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements in Casters for Furniture.
I, WILLIAM BREW, of 6, Denbigh Road, Ealing, in the County of Middlesex,
Electrical Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in casters for furniture.
In carrying out my improvements I employ the usual roller but I adapt halls to the
vertical spindle thereof so as to reduce friction. The said balls can advantageously be
placed in a groove formed in the bottom of the socket, or body of the caster, so as to
rotate between this groove and a curved surface on the vertical spindle. In some
cases additional balls may be employed to assist in maintaining the spindle in its
vertical position.
Where the caster is fixed to the article of furniture by means of a central screw I
form this screw hollow to receive the central spindle, the groove for the balls being
formed in the lower end of the tubular screw.
Dated the 29th day of January 1890
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Casters for Furniture.
I, WILLIAM BREW, of 6, Denbigh Road, Ealing, in the County of Middlesex,
Electrical Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in casters for furniture.
In carrying out my improvements I employ the usual roller but I adapt balls to the
vertical spindle thereof so as to reduce friction. The said balls can advantageously be
placed in a groove formed in the bottom of the socket, or boly of the caster, so as to
rotate between this groove and a curved surface on the vertical spindle.
Where the caster is fixed to the article of furniture by means of a central screw I
form this screw hollow to receive the central spindle, the groove for the balls being
formed in the lower end of the said screw.
In order to enable my invention to be fully understood I will describe how it can
be carried into practice by reference to the accompanying drawing, in which
Figure 1 is a vertical section of a caster provided with my improvements and having
a socket to allow of its attachment; and,
Figure 2 is a similar view of a caster provided with a central screw for its
attachment.
Similar reference letters indicate similar or corresponding parts in both the figures.
a is the usual roller and the vertical spindle thereof which, in Figure 1, is placed
in an opening at the lower part of the socket c in the usual manner, and in Figure 2
the central screw d is formed hollow for its reception.
e represents a screw which I use to prevent any downward movement of the
spindle b. represents the groove for receiving the balls and which groove is
advantageously formed in the bottom of the socket e in the form of caster shown in
Figure 1, and in the lower end of the screw d in the caster shewn in Figure 2. g is the
curved surface on the vertical spindle b, between which surface and the groove f
the balls are situated so that they can rotate to reduce friction between
the parts.

page_text: In some cases additional balls may be employed to assist in maintaining the spindle
in its vertical position.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. A caster for furniture having balls adapted to the vertical spindle thereof,
substantially in the manner and for the purpose hereinbefore described.
2. The manufacture and use of the improved casters for furniture hereinbefore
described and illustrated in Figure 1 and in Figure 2 of the accompanying drawing.
Dated the 29th day of October 1890.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.