An Improvement in the Method of Holding or Fixing a Chaplet or Chaplets in Moulds for Casting.
Year: 1899

page_text: Date of Application, 11th Apr., 1899-Accepted, 8th July, 1899
An Improvement in the Method of Holding or Fixing a Chaplet or
Chaplets in Moulds for Casting.
ALFRED GEORGE HUGILL, of No. 1, Buckingham Terrace, Windsor Road, New
Brompton, Kent, Moulder, and WILLIAM HENRY MILES BERTHON, Secretary to
a Company, of 6, Parma Crescent, Clapham Common, London, S.W., do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:
-
This invention relates to:-
"A new & improved method of holding or fixing, a chaplet or chaplets in
moulds for castings."
Reference being had to the accompanying drawing; a full and general view,
showing the actual position of a chaplet, with the proposed holder or fixer in
position, and the usual accessories in a foundry ready for casting,
"
This invention consists in the tripod and screw applied to chaplets, as seen in
the drawing between, (F) and (V) to prevent the interior portion of the mould,
commonly called cores " from being displaced or moved and thus often spoiling
a casting, F, being the cup or filler, and V, the lifter (S), a steel or wrought iron
screw, having a hexagonal head (N,) the top of which is recessed or drilled a half
its thickness to receive the upper part of the chaplet, and fitting sufficiently
accurately, to prevent any slip. (0) a brass collar, with three legs forming a
triangular or inverted tripod, is drilled and tapped through its centre, with a
thread corresponding, and in which (S) works, by turning (N) the hexagonal
head.
(C) the chaplet, being adjusted in position, the extremities of the tripod
legs, are held against the under surface of the top weight (W.) the longer
axis of the hexagonal headed screw is placed directly over the longer axis of the
chaplet, the hexagonal head is then turned to hold and meet the chaplet securely,
the chaplet & screw now being in the same line, the tripod legs partly support
the weight, and will distribute more evenly the striking or lifting power of the
chaplet, this power being distributed over a larger portion of the weight, conse-
quently reducing to a minimum the tendency of the weights or wedges to over-
balance, when supported by the smaller pivot of the chaplet alone.
6
The sudden and instantaneous flow and action of the metal has a tendency to
raise or float the "core," and with the prevailing method of wedging, the con-
cussion of the chaplet, against the wedges and weights, causes the chaplet to
rebound, the wedges momentarily having no support, must drop out, then the
core "rises above its intended position, and the casting is necessarily spoilt.
Using this holder or fixer, it is obvious, that one weight sufficiently large to
cover any desired number of chaplets in a mould, will only be required, and not
as at present, a separate weight with separate wedges to each chaplet, this weight
being packed above the surface of the top box, clear of the cups & lifters; the
holders or fixers can be most accurately adjusted to any height, and, placed
wherever a chaplet is required.

page_text: Having now particularly described and ascertained the nature of our said in-
vention, and, in what manner the same is to be performed, we declare, that what
we claim is:
I A new & improved method of holding and fixing chaplets in casting.
II A more mechanical, practicable, accurate, and expeditious method of fixing
and holding chaplets by a screw adjustment, than the prevailing cumbersome
and insecure method of wedging, or packing the weights to chaplets.
III The novelty arising from having only one weight for two or more chaplets,
and thus not having to pack weights and wedges to various heights.
Dated this 11th day of April 1899.
ALFRED GEORGE HUGILL.
WILLIAM
HENRY MILES BERTHON.