Improvements in the Rollers of Castors for Furniture.
Year: 1891

page_text: Date of Application, 9th July, 1891
Complete Specification Left, 9th Apr., 1892-Accepted, 25th June, 1892
PROVISIONAL SPECIFICATION.
Improvements in the Rollers of Castors for Furniture.
I, SAMSON CHAMBERS of Broad Oaks, Attercliffe, Sheffield in the County of.
York, Gannister Merchant, do hereby declare the nature of my invention to be as
follows:-
This invention relates to the construction of rollers for castors such as are used
upon articles of furniture, having for its object to make the roller elastic, and to
enable it to run more easily over the floor, and to prevent it cutting into carpets
and the like.
In carrying out my invention I propose to make the roller with a central block
of rubber, or its compounds, preferably made in the form of a ball, having a hole
through its centre.
Through the centre hole I pass a tubular bush, and I prefer to fix upon the ends
of the bush a metal plate or washer between which the rubber ball is slightly
compressed; the pin or axis on which the roller turns passes through the bush and
is secured to the frame of castor in the usual manner.
I may form the bush and end plates or washers in two parts arranged so that
they can be connected by screwing them together in the interior of the ball of
rubber.
The hole through the rubber may be of any size to suit bushes of large or of
small diameter, so that for a bush of large diameter the rubber would rather
assume the form of a strong ring with a convex face.
In this case I may make the bush of one solid piece, somewhat like a bobbin,
and slip the rubber ring into the annular groove by expanding it until it will pass
over the end plates, or I may otherwise secure it.
Dated the 8th day of July 1891.
ROBT. F. DRURY, Fel. Inst. P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in the Rollers of Castors for Furniture.
I, SAMSON CHAMBERS of Broad Oaks, Attercliffe, Sheffield, in the County of
York, Gannister 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 :-
This invention relates to the construction of rollers for castors, such as are used
upon articles of furniture, having for its object to make the roller elastic, to enable
it to run more easily unon the floor and to avoid cutting the carpet.
COMPLETE SPECIFICATION.
Improvements in the Rollers of Castors for Furniture.
I, SAMSON CHAMBERS of Broad Oaks, Attercliffe, Sheffield, in the County of
York, Gannister 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 :-
This invention relates to the construction of rollers for castors, such as are used
upon articles of furniture, having for its object to make the roller elastic, to enable
it to run more easily unon the floor and to avoid cutting the carpet.
The invention is illustrated in the annexed sheet of drawings.
Fig. 1. section of roller.
Fig. 2. section of roller with a glass bush.
I make my improved roller of rubber, or of an elastic rubber compound,
marked R in Fig. 1, with a hole through its centre, and through this centre hole I
pass a metallic tubular bush. B, secured in position by metallic washers W, at each
end, screwed, rivetted or otherwise fastened upon the tubular bush.
The rubber roller R, is slightly compressed between the two washers W, which
increases its firmness and enables it to retain its shape.
may form the bush with solid end' plates by making it in two parts, and when

page_text: in position in the centre hole of the roller screwing the two parts together in the
centre.
The hole through. the rubber roller may be of any size to suit bushes of any
required diameter, thus for pianos where the bush is preferably made of glass as
shown in Fig. 2, the rubber assumes the form of a strong ring with a convex
face.
'
In this case I make the bush and the end plates of one solid piece of glass G,
somewhat resembling a bobbin, and force the rubber over one end' upon the centre
portion where it holda by contraction.
Having now particularly described and ascertained the nature of my inven-
tion, and in what manner the same may be performed I declare that what I
claim is:-
A roller for furniture castors made of rubber or an elastic compound of same,
having a ceutral bush of metal, glass or like material with solid or attached end
plates, substantially as described and shown.
T
.
11000
ROBT. F. DRURY, C.P.A.,
George Street, Sheffield; Agent for Applicant.
ROBT. F. DRURY, C.P.A.,
George Street, Sheffield; Agent for Applicant.