Improvements in Chaplets or Core Supports for Moulds.
Year: 1892

page_text: Date of Application, 10th May, 1892-Accepted, 11th June, 1892
COMPLETE SPECIFICATION.
Improvements in Chaplets or Core Supports for Moulds.
I, ERNST RICHARD GÖHLER of 1 Herbertstrasse Chemnitz in the Kingdom
of Saxony and German Empire, Engineer, 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 chaplets or supports for the cores used in casting hollow
articles such as pipes, cylinders, columns, or hollow balls. Hitherto the cores have
generally been supported by means of spikes secured to a piece of iron sheeting shaped
to conform with the outside of the core. It often happens however that the core
support, not being firmly supported by the sand, cannot support the pressure and
weight of the iron or other metal and moves to one side carrying the core with it
thus causing an unequal thickness in the walls of the casting. Other sources of
annoyance are that the core supports which were cast in with the casting often
got loose and fell out, and that serious flaws frequently occurred in the neighbourhood
of the chaplets.
The chaplets or core supports constructed according to this invention are pre-
ferably formed of malleable iron or cast steel, and by their use I am enabled to
overcome all the drawbacks and inconveniences before mentioned.
In order to render the description of my invention clearer, I have hereto appended
a sheet of drawings in which different forms of chaplets or core supports are
illustrated, and reference to which is hereinafter made.
Figures 1 and 2 illustrate respectively in partial front and side elevation, a chaplet
having its supporting pin cast with it;
Figures 3 and 4 shew respectively front and side views of a chaplet or core
support formed with a rib and disc; and
Figures 5 and 6, illustrate a form of support intended for use with heavy cores,
this support being furnished with a rib and several pins.
C
The supporting part of the chaplet shewn in Figures 1 and 2, consists of the
suitably shaped plate and the pin a which is cast with it. Smaller projections
are cast upon the plate 6 for the purpose of preventing the chaplet from becoming
loose or falling out of the casting. These projections may either be bent before
the support is placed in position or they may be left long enough to pass through
the casting so that the projecting ends may be riveted. Both methods of securing the
plates are illustrated by Figure 1.
For the purpose of stiffening the supporting plate b, a rib e may be cast upon it
as shewn in Figures 3 and 4, and a disc d formed on the pin a may be substituted
for the projections c, especially for use in a casting having thick walls.
The chaplet illustrated by Figures 5 and 6 is designed especially for use with
heavy cores. The plate 6 is formed with the rib e carrying the projections c,
and is furnished with several supporting pins a, thus ensuring a very firm grip in
the sand.
It is evident that the different constituent parts of the supports constructed as
hereinbefore described may be combined in many different ways without departing
from the spirit of my invention.
Owing to the supports being formed of malleable iron or cast steel they become
burnt into or welded so as to form part of the casting without causing any flaw.
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. Chaplets or supports for the cores of moulds, constructed substantially as and

page_text: for the purpose hereinbefore described and as illustrated by the accompanying
drawings.
2. In chaplets or core supports having their stalks and heads formed in one
piece, projecting pins formed on the back of the plate, substantially as and for
the purpose hereinbefore described and as illustrated by the accompanying
drawings.
3. In chaplets or core supports formed in one piece, a disc formed upon the stalk
below the head of the. chaplet, substantially as and for the purpose herein before
described and as illustrated by the accompanying drawings.
4. In chaplets or core supports, the combination of the support or head, a main
stalk, and two or more supplementary stalks, with or without pins formed upon the
back of the head; substantially as and for the purpose hereinbefore described and
as illustrated by the accompanying drawings.
Dated this 5th day of May A.D. 1892.
WILLIAM E. HEYS,
Agent for the Applicant.