Improved Furniture Caster.
Year: 1892

page_text: Date of Application, 19th Sept., 1892
Complete Specification Left, 6th Jan., 1893-Accepted, 11th Feb., 1893
PROVISIONAL SPECIFICATION.
Improved Furniture Caster.
1 JOHN MILEY of 49 Cliff Street, Keighley in the County of York,
Mechanical Draughtsman, do hereby declare the nature of this invention to be as
follows:-
My invention relates to casters for furniture and consists in an improved con-
struction or arrangement of the same, the object of my invention being to obtain an
elastic support for the legs of the furniture and adjustment of the same to the
unevenness of the floor, and greater resistance to the canting action and wear
resulting therefrom than in ordinary casters.
In carrying out my invention I fix to or form on the fork containing the bowl of
the caster a shank or stud which is reduced in diameter in its upper part and
surround this reduced part with a helical spring. I insert this shank or stud
into a bush or its equivalent the end of which is drilled for the reduced part
of the shank to pass through, so that the spring is contained in the bush
between its end and the collar formed by the enlarged part of the shank or stad,
the latter being secured by a pin passed through its end outside the bush or
by equivalent means. The bush is inserted into the leg of the article of
furniture to which the caster is applied, and formed with a flange or cup for
securing it thereto by means of screws. The weight of the article of furniture
and the additional weight placed thereon compress the spring, and all the four
or more legs of the same will rest on the floor and be supported on springs
and the canting pressure will be taken up by the stud and bush at the bottom
and top end of the latter, the stud turning in the bush as the furniture is
moved in different directions.
Dated this 17th day of September 1892.
R. J. URQUHART,
57, Barton Arcade, Manchester, and 5, Clayton Square, Liverpool,
Consulting Engineer and Patent Agent.
COMPLETE SPECIFICATION.
Improved Furniture Caster.
I JOHN MILEY, of 49 Cliff Street, Keighley in the County of York,
Mechanical Draughtsman, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
My invention relates to casters for furniture and consists in an improved con-
struction or arrangement of the same, the object of my invention being to
obtain an elastic support for the legs of the furniture and their adjustment to
the unevenness of the floor, as well as greater resistance to the canting action
and to the wear resulting therefrom than in ordinary casters.
On the sheet of drawings appended hereunto
Figure 1 shows a vertical section of my improved caster applied to a wooden leg
or foot and
Figure 2 a similar section of the same applied to the foot of an iron bedstead or
similar article of furniture.
In carrying out my invention I fix to or form on the fork a containing the
bowl b of the caster a shank or stud c which is reduced in diameter in its
upper part c and surround this reduced part with a helical spring d. The
Price 8d1

page_text: larger part of the shank or stud c when made of iron has preferably a brass
bush e cast, driven or shrunk upon it. I insert this shank or stud c into a
bush for equivalent piece bored out to the size of the larger part of the
shank or stud except at the end f' which is drilled for the reduced part of the
shank to pass through, so that the spring d is contained in the bush betweer
the end and the collar formed by the enlarged part of the shank or stud.
The latter is secured to the bush f by a pin g passed through its end outside the
bush or by equivalent means.
The caster so formed is attached to the leg or foot of the furniture to which
In
it is applied by inserting the bush into the same and securing it thereto.
the case of wooden furniture a hole is bored out deeper than in the caster as
shown by Figure 1, and the caster driven into it and secured by means of a
flange cast on the bush or socket f and wood screws; or a ring or cup may
be cast on the flange of the bush or socket or shrunk upon the same, into
which ring or cup the leg enters and is fixed by screws in the usual way.
When the caster is to be applied to tubular iron furniture, I shrink upon the
bush or socket a hoop or collar casting 1, which is driven upon the tubular end
of the leg or foot m and secured by a setscrew as shewn by Figure 2.
The shank or stud c may be fixed in the central part of the fork a as shewn
or cast in one piece with the same.
When my improved casters are attached to a piece of furniture the weight
of the furniture and the additional weight placed thereon compresses the
springs d, all the bowls of the casters attached to the four or more legs of the
furniture resting on the floor, and all said legs being supported on compressed
springs d. The canting pressure resulting from the eccentric position of the bowl b
is taken up by the bush and stud c at the top and bottom end of the bush instead
of by the short central part of the fork 6 as in ordinary casters and as the bush is
long compared with said central part, the friction when the caster is turned by
moving the furniture and the wear resulting therefrom is considerably reduced and
the fork and bowl turn with greater ease.
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
1. The construction or arrangement of furniture casters substantially as described
and illustrated in and by the drawings.
2. The manufacture and use of furniture casters arranged substantially as described
and illustrated in and by the drawings.
Dated this 31st day of December 1892.
R. J. URQUHART,
57, Barton Arcade, Manchester, and 5, Clayton Square, Liverpool,
Consulting Engineer and Patent Agent.