An Improved Caster for Chairs and other Articles.
Year: 1896

page_text: Date of Application, 1st June, 1896-Accepted, 4th July, 1896
COMPLETE SPECIFICATION.
An Improved Caster for Chairs and other Articles.
I WILLIAM UNETT COATES of Hill Vicarage, Falfield in the County of Gloucester
Clerk in Holy Orders 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 carry out by new means and construction an
invention for "An improved caster for chairs and other articles" for which I
made an application for a Patent, and which Application has been filed and
numbered 10042 dated 12th May 1896.
The new construction consists of two principal parts 1st in disconnecting the
cap which rests on the pin from the socket-that is to say in making them of
two different pieces.
2. In making the pin and the frame containing the roller in such a way that
the weight of the chair or other article shall rest on the pin P, at A. see
Figs. 10, 11, 13-or the weight may rest on the top of the frame F-this is not
shown in the drawings.
Fig. 10 is a section of the caster when the weight rests on the pin at A.
Pin P is made of steel or other metal. L is the leg of the chair or other article,
in Fig. 10, it is made round and fits into socket S: it is made firm by pin K,
which passes through L and S, and is rivetted. E is a ring of steel or other
metal with a hole in the centre for the pin P to pass through-it fits into a hole
at O in the bottom of the socket S. After the pin P is put through ring E, it
is fixed to the bottom of socket S, by screws, rivets or otherwise. Before pin P,
and ring E, is put in its place the ring H is fixed on to pin P, as shown in
Fig. 10. H, is fixed by a pin or otherwise. This ring H, is to prevent the pin, P,
with the frame F from falling out, when the chair or other article is lifted up.
D, is shown in Fig. 10, as separate from socket S, to which it is fixed, it
might have been made as part of socket S, it is made of steel or other metal,
but when part of S, it is made of brass or other metal. The pin P, passes
through D and is thus kept in its place, and the frame F, to which it is rigidly
joined by pin, screw, or rivet or otherwise. R is the roller which turns in its
frame F.
Fig. 11. is a section of the caster when the weight is made to rest on pin P,
at A, without the intervention of ring E, as described under Fig. 10. S, is
the socket into which the leg of the chair or other article fits. P, is the pin on
which the weight rests at A. D is a ring of metal through which pin P passes,
and by which the pin P, is kept in position. A hole is bored in leg of the
chair L. into which hole D is placed and fixed. The pin P, is kept from falling
out in the same way as described in the Application for a Patent numbered 10042
dated 12th May 1896.
Fig. 12. is an elevation of the caster when made as described under Fig. 11.
The socket S, may be made in any fancy or convenient way.
Fig. 13. is a section of the caster when a ball bearing is used. The balls B,
rest on the pin P, at A. The balls B, fit into a circular groove and rest on the
pin P, at A. In other respects the description of Fig. 11, is the same as for this
Fig. 13, except that the leg of the chair or other article is here shown as
square, it might have been any other shape and the socket S, would be made

page_text: accordingly. The washer, M, is fixed to socket S, to keep the balls in their
place.
Fig. 14 is an elevation of the caster as shown and described under Fig. 13.
Fig. 15 is a section of a caster when the weight is made to rest on pin P,
at b, the cap C, which fits on the top of pin P, is made in a separate piece of
metal from the socket S, and is fixed in a hole bored in the leg L, of the chair
or other article.
In all the different forms of casters here described the pin P, is rigidly connected
with the frame F.
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. Development in the construction of a caster for chairs and other articles,
for which I applied for a Patent, which Application is filed and numbered 10042
dated 12th May 1896-as herein described and shown by the drawings.
2. The construction of a caster, in which, the part which rests on the top of the
pin here called the cap, is complete in itself, and is not a part of the socket.
3. The construction of a caster in which the weight of the chair or other article
shall rest on that part of the pin, just above the top of the frame which contains the
roller.
Dated this 30th day of May 1896.
W. UNETT COATES,
Applicant.