Improvements in Castors.
Year: 1893

page_text: Date of Application, 15th Dec.. 1893
Complete Specification Left, 15th Sept. 1894-Accepted, 20th Oct.. 1994
PROVISIONAL SPECIFICATION,
Improvements in Castors.
I, JOHN HARRINGTON, of Claremont House, West Street, Ryde, in the
Isle of Wight, Manufacturer, do hereby declare the nature of this invention to be
as follows:-
The invention has for its object improvements in castors with a view to
rendering their motion easier and more agreeable, to better distribute their
bearing, and to prevent their sliding, dragging or boring and so injuring a carpet
or other floor covering or the floor itself.
For this purpose I mount a wheel at each end of a spindle, which latter is formed
with a central bearing between the wheels fitting a stud projecting at right angles
to the aforesaid spindle and in a plane parallel to the floor. This stud is fixed to
one side of a block swivelling round a vertical pin and arranged as close as con-
venient to the spindle of the wheels, preferably within the periphery of the latter.
The block may be provided with a bearing fork at its lower end to receive the
horizontal stud and in this case the vertical spindle may be in the same vertical
plane as the centre of the wheels or it may be at one side thereof.
When furniture fitted with my improved castor is pushed in any given direction,
if the castors do not happen to be exactly trailing, both wheels immediately begin
to revolve, one in one direction, the other in the opposite direction, until the true
trail is made, and this is silently and smoothly effected with a certainty never yet
attained.
Dated this 15th day of December 1893.
JOHN HARRINGTON,
By Harris & Mills,
23, Southampton Buildings, London, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in Castors.
I, JOHN HARRINGTON of Claremont House, West Street, Ryde,. in the
Isle of Wight, Manufacturer, 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 invention has for its object improvements in castors with a view to
rendering their motion easier and more agreeable, to better distribute their
bearing and to prevent their sliding, dragging or boring and so injuring a carpet
or other floor covering or the floor itself.
My invention is illustrated in the accompanying drawings in which :-
Figure 1 is a side view,
Figure 2 is a front view,
Figure 3 is a vertical section on the line 1-1 of Figure 2, and
Figure 4 is an underside view of a castor constructed according to my invention.
In carrying my invention into effect I mount a bowl or wheel a at each end of a
spindle b which latter is formed with a central bearing b¹ between the wheels a
fitting a stud e' projecting at right angles to the aforesaid spindle b and in a plane
parallel to the floor. This stud c is fixed to one side of a block c_swivelling
Price 8d 1
0

page_text: round a vertical pin d and arranged as close as convenient to the spindle b of the
wheels a, preferably within a line drawn across the peripheries of the latter.
The pin d is shown fixed to a plate e provided with countersunk holes
which the castor can be screwed to any desired article.
by
If desired the plate e may have projecting from its upper side a screwed or a
plain pin, or a socket may be substituted for the plate e to suit the article to which
the castor is to be applied but such parts are well known and form no part of my
invention.
By mounting the spindle on a horizontal stud c¹ the rollers or wheels a are
capable of self adjustment to slight irregularities of the floor thereby equalizing the
bearing of the wheels a upon the floor.
When furniture fitted with my improved castors is pushed in any given direction
when the castors do not happen to be exactly trailing, both wheels a of such
non trailing castor or castors immediately begin to revolve, one in one direction,
the other in the opposite direction by swivelling around the vertical pin d until the
true trail is made, and this is silently and smoothly effected with a certainty and
ease never yet attained.
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 castor having a bowl or wheel a at each end of a horizontal spindle
provided with a central bearing 61 mounted on a horizontal stud c' carried by a
block c swivelling around a vertical pin d substantially as herein shown and
described.
2. The combination in a castor of a pair of bowls or wheels a, a horizontal
spindle on the ends of which the wheels a are mounted, a horizontal stud con
which the spindle b is capable of swivelling and a vertical pin or axis d around
which the stud c¹ swivels substantially as herein shown and described.
Dated this 15th day of September 1894.
JOHN HARRINGTON,
By Harris & Mills,
23, Southampton Buildings, London, W.C., Agents.