Improvements in Wheels for Castors and other purposes.
Year: 1895

page_text: Date of Application, 26th Nov., 1895-Accepted, 6th June, 1896
COMPLETE SPECIFICATION.
Improvements in Wheels for Castors and other purposes.
I EMIL HENTSCHIEL, Foreman, and THE AUTOMATIC CASTOR AND WHEEL.
COMPANY LIMITED, Manufacturers, both of 34 North Street, Manchester
Square, London, W. do hereby declare the nature of this invention and in what
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 produce a simple, economical, and strong
wheel for castors and other purposes, from sheet metal, whether brass or steel, or
a combination of these or other metals, and the invention consists in the manner of
constructing such wheels.
In carrying out this invention, a cup A is formed, preferably from a disc of
brass, by stamping and drawing, in a manner now well understood, into the shape
shown by the sectional view, Fig. 1 of the accompanying drawing, with a central,.
internally projecting annular lip or flange, as at a, and a U-shaped annular recess,
as at b.
From a disc of steel, or, it may be, of brass, a saucer-shaped piece B, as shown
in section at Fig. 2, is also formed by stamping and drawing, with a central,
internally projecting annular lip or flange, as at c.
The external diameter of this saucer B is such, that the saucer will fit snugly
inside the cup A.
From another disc of, say, brass, the saucer-shaped piece C shown at Fig. 3 is
formed also with a central, internally projecting annular lip or flange d. This
piece C is formed, at the edge, with a bead e, for the purpose to be presently
explained.
•
In assembling the parts, two of the pieces B are placed inside the cup A, with
the edges of their rims abutting, and a piece C is placed on the top, as shown in
Fig. 4.
The assembled parts are then put into suitable dies, and pressure being applied,
the edge of the cup A is turned over inwards, as at f, Fig. 5, and caused to catch
under the beade of the piece C, thus firmly holding the piece C, and forcing it.
down onto the parts B, which are jammed against the bottom of the cup.
All the parts are thus firmly gripped, and secured against rattling; both sides.
of the wheel have the same appearance; and a strong serviceable wheel is
produced, in an economical manner.
The turned-in annular flanges a, c, c, d, serve as bearing surfaces for the axle of
the wheel, and we thus obtain extended bearing surfaces at points in the interior
of the wheel, as well as at the sides.
The walls of the cup A form the rim of the wheel or running surface, and this.
rim is strengthened by the internal saucer-shaped supports B.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, we would here remark,
that we make no claim for the mode of producing the parts taken separately, as
this is already well known, nor do we claim the mode of turning over inwards the
edge of the cup, to clamp the parts together, as such a mode of clamping is also
well known; but we declare that what we claim is :-
A wheel for castors and other purposes, consisting of a cup, two internal

page_text: supporting saucers, and a beaded outer plate or saucer, each part being formed
with a central annular flange, which, when the parts are assembled, form a series
of extended bearing surfaces for the axle,-the whole being clamped together by
turning over inwards the edge of the cup, so that it will catch under the bead of
the outer plate, and force all the parts inwards against the bottom of the cup, as
and for the purpose set forth.
Dated this 23rd day of November 1905
NEWTON & SON,
Agents for the Applicants.