An Improvement connected with Ohair and like Castors.
Year: 1889

page_text: Date of Application, 3rd May, 1889
Complete Specification Left, 3rd Feb., 1890-Accepted, 8th Mar., 1890
PROVISIONAL SPECIFICATION.
An Improvement connected with Ohair and like Castors.
'I JOHN BATE of 57 Holborn Viaduct city of London, Machinery Merchant, do
hereby declare the nature of my said invention to be as, follows:-
The object of this invention is to remove the weight.of the person occupying a-chair
or like article of furniture from the castor wheel and have said,weight supported by a
stud-or depending leg forming part of the castor body, the weight of the chair alone
being put upon the castor wheel when the chair is tilted forward such as when it has to
be shifted or moved from one place to another.
For the purpose of my invention I make the body of the castor in a piece with the
shoulder or collar and the barrel or the screw according to its construction and I, make
the body of such a depth that it rests upon the ground, as well as the castor wheel but
as the pin through the wheel, is necessarilly somewhat loosely fitted the wheel yields so
that the whole or principal part of the weight of the chair and of the person sitting
upon it is borne by the body of the castor.
In some cases a spring.may be fitted in or to the body as a cushion and with or
without a ball.
The lower body may be separate and attachable to an ordinary castor.
H. GARDNER,
166, Fleet Street, London, Agent for the said J. Bate.
COMPLETE SPECIFICATION.
An Improvement connected with Chair and like Castors.
I, JOHN BATE, of 57 Holborn Viaduct. City of London, Machinery Merchant, 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:-
The object of this invention, is to remove the weight of the person occupying a chair,
or like article of furniture from the Castor wheel or ball and have said weight
supported by a stud, or depending leg, forming part of the Castor body, the weight of
the chair alone being put upon the Castor wheel or ball when the chair is tilted
forwards or backwards, such as when it has to be shifted, or moved from one place
to another.
For the purpose of my invention, and as I show at Figure 1 of the annexed drawings,
I make the body A of the Castor in a piece with the shoulder, or collar B and the
barrel C (see Figure 2), or the screw D according to its construction, and I make the
body of such a depth that it rests upon the ground, as well as the Castor wheel E, but
as the pin and the wheel are somewhat loosely fitted, the wheel yields, so that the
whole, or principal part of the weight of the chair and of a person sitting upon it is
borne by the body A of the Castor, or by the chair leg F, as at Figures 2 and 9,
which passes beyond the Castor body, or barrel C. The front wheel need not
however quite touch the ground
The lower body may be separate and attachable to an ordinary Castor.
Figures 3, 4 and 5 show a chair with my improved Castor affixed to all four
legs but as a rule, or if desirable, the Castors would only be used on the front legs,
or on the back legs of chairs and they can be moved backwards or forwards from
either front or back legs.
Instead of the Castor wheel E being fore and aft of the chair legs, as above
explained, it may be arranged in advance of the barrel from the side, as at Figure 6,

page_text: or at the side of the barrel, or body, as at Figure 7, so that when fitted to a chair, as at
Figure 8, the chair has only to be tilted sideways for moving it along the floor,
either backwards, or forwards.
It will be understood from the drawings, that the wheel or the ball support G, as at
Figure 10 of my improved Castor has no swing round action on a pivot to meet the
direction of travel, as with ordinary Castors, neither does the wheel take the weight of
the chair, as that of the ordinary and well known Castor, when the chair is upright,
the weight of the chair being, as before mentioned, upon the chair leg, or on the
base of the Castor body, there being no tendency of the chair to slide back, unless it
be tilted in one, or other of the directions named, and at the will, or desire of a
person.
Having now particularly described and ascertained the nature of this invention and
in what manner the same is to be performed I declare that what I claim is :-
1. The manufacture of chair Castors, with wheel or ball supports projecting from
and in a piece with the barrels, or sockets, as described and as shown on the drawings
for the purposes set forth.
2. The manufacture of Castors for chairs and the like with the Castor wheels, or
balls in, or with a band barrel, or hoop forming part of, or attachable to body
encircling the lower portions of chair legs, as set forth.
The 3rd day of Feb 1RUN
H. GARDNER,
166, Fleet Street, London, Agent for the said J. Bate.