Improvements in the Construction and Manufacture of Moulders' Studs, Chaplets, and Core Supports.
Year: 1892

page_text: Date of Application, 31st Oct., 1892
Complete Specification Left, 24th Mar., 1893--Accepted, 29th Apr., 1893
PROVISIONAL SPECIFICATION.
Improvements in the Construction and Manufacture of Moulders'
Studs, Chaplets, and Core Supports.
I, THOMAS HUNTER THOMS Engineer Beechfield House The Beeches,
Didsbury near Manchester County Lancashire, do hereby declare the nature of this
invention to be as follows:-
My invention particularly relates to moulders' studs, chaplets and core supports,
and for the purpose I make same of tin-plate in different forms, & shapes as may
he necessary for the weight to be supported.
The said studs, or chaplets can be used either for ordinary castings, where cores
are used or for the cores of pipes or other hollow castings.
In this improved method of constructing moulders studs, chaplets and pipe nails
I make these of the material usually termed tin-plate which can be made in sheets,
and bent or pressed to the required shape, or it may be rolled to the sections and
cut off to the desired width.
These studs or chaplets are so constructed that the hot metal coming into contact
with this material does not suffer from the cooling influence of a chilling surface
but when brought into contact with the tin-plate, the stud or chaplet becomes fused
and amalgamated with the metal and so becomes part of the solid casting thus
preventing the liability to blow holes or porousness.
To make sure that the hot metal while being run into the mould reaches all parts
of the studs or chaplets, these are so constructed that the metal can surround them
on all sides.
For light classes of castings where the weight to be supported is small, these
studs or chaplets can be made of an inverted I shape with an extended base to admit
of securing them in place in the mould and for this section the studs can be rolled in
lengths and cut off to the required width or they can be made from strips of the
plate bent to the size.
For heavier class of work where the weight to be carried is greater, the studs or
chaplets are made of box section or shape, or they can be rolled in coil to the size
and strength to withstand the heavier weight to be supported, and in the box
shaped stud or chaplet the sides are perforated so that the metal in being run into
the mould reaches the interior as well as the outside of the stud or chaplet and thus
it becomes thoroughly imbedded and forms part of the casting, with the same
result as before that blow holes and porousness in the casting are prevented.
For pipe nails and such other class of work the chaplets are made with the heads
and stems solid, and can be made with plain bodies or pressed to a cruciform or
other required shape to give greater strength for support if desired, and the heads
can be adjusted to any radius according to the shape or diar. of the core to be
supported.
Dated 27th day of October 1892.
THOS. HUNTER THOMS,
The Beeches, Didsbury.

page_text: COMPLETE SPECIFICATION.
Improvements in the Construction and Manufacture of Moulders'
Studs, Chaplets, and Core Supports.
I THOMAS HUNTER THOMS of Beechfield House, The Beeches, Didsbury,
near Manchester in the County of Lancashire, 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 :-
+966
"
"
My invention particularly relates to moulders "studs chaplets" and " core
supports, which I propose to make of the material known as tinplate" and of
different forms and strengths as may be necessary for the weight to be supported.
The said "studs or "chaplets" can be used eitlier for ordinary castings where
cores are used, or for the "cores of pipes or other hollow castings.
66
66
"
"
In this improved method of constructing moulders studs, chaplets and "pipe-
nails" I make these of the material usually termed "tin-plate" which can be made
in sheets or in strips and then be bent or pressed into the required shapes, or may
be rolled to the sections and cut off to the desired widths. These "studs" or
chaplets" are so constructed, as to their shape, that the hot metal coming into
contact with material of which they are made does not suffer from the cooling
influence of a chilling surface, as, when brought into contact with the "stud
chaplet," the "tin-plate" becomes fused and amalgamated with the metal and so
becomes part of the sold casting thus preventing the liability to blow holes or
porousness.
66
"
or
To make sure that the hot metal while being run into the mould reaches all parts
of the "studs" or "chaplets," these are so constructed that the metal can surround
them on all sides. For light classes of castings where the weight to be supported is
small, these "studs or "chaplets" can be made of an inverted I shape with an
extended base to admit of securing them in place in the mould and for this section
the "studs can be rolled in lengths and cut off to the required width or they can
be made from strips of the plate bent to the size.
"
For heavier class of work, where the weight to be carried is greater, the "studs"
or "chaplets" are made of box section or shape, or they can be rolled in coil to the
size and strength to withstand the heavier weight to be supported, and in the box
shaped "stud" or "chaplet" the sides are perforated so that the metal in being
run into the mould reaches the interior as well as the outside of the "stud" or
chaplet" and thus it becomes thoroughly imbedded and forms part of the casting
with the same result as before, that blow holes and porousness in the casting are
prevented.
"
For "pipe-nails" and such other class of work the "chaplets" are made with
the heads and stems solid aud can be made with plain bodies or pressed to a
cruciform or other required shape to give greater strength for support if desired,
and the heads can be adjusted to any radius according to the shape or diameter of
the "
core to be supported.
::
DESCRIPTION OF DRAWINGS.
The accompanying sheet of drawings (the figures on which are all full size)
illustrates in different forms the manner in which 1
to
propose carry out my inven-
tion, with special reference to the material " tin-plate as best adapted for their
manufacture, but other forms may be used to suit special cases.
66
Figures 1, 1 and 1" shew respectively an end view, side view and plan of a
small chaplet" and Figures 2, 24 and 28 the same views of a larger "chaplet."
Figures 3, 34 and 3B shew the same views respectively of a double "chaplet " of
small size and Figures 4, 4 and 4 the same views of a larger "chaplet."
Figures 5 and 5^ shew an end elevation and plan of "chaplets" of box form with

page_text: extended flanges at bottom and top to give them stability in the mould and
Figures 6 and 6^ shew the same views of similar "chaplets" of larger size.
Figures 7 and 7 shew two views of a "chaplet" or "core support of a spirally
wound strip of "tin-plate."
Figures 8 and 8^, 9, 94 and 9" shew end and side views and a plan of different
forms of "pipe-nails" for supporting pipe cores.
Referring to Figures 1, 1A and 1B and to Figures 2, 2A and 2B it will be seen
that the sectional form may be obtained by folding a strip of "tin-plate" and then
securing the folds by the "burrs," formed in puuching the holes, being clenched to
form rivets or this folding may be done in long lengths of the proper depth and
afterwards cut into the required lengths by hand or by machines adapted for the.
purpose.
ર
"
In Figures 3, 34 and 3 and in Figures 4, 44 and 4 double "studs" or "chaplets"
are shewn (ie. two "studs" or chaplets on one base) convenient for fitting
where a long << core is to be supported instead of using single "studs" or
chaplets."
"
"
"
or
Figures 5 and 54, 6 and 6^ shew "studs or "chaplets" of a box form adapted
for supporting heavy "cores" "which it will be seen can be constructed of strips of
tin-plate" folded and flanged to form the "studs" "chaplets" small holes
being punched in the base and clenched for rivets as in the other "studs"
chaplets" and openings being made in the sides so as to allow the molten metal
to flow completely through and fuse the "stud "chaplet" which becomes
incorporated with the casting after it has served its purchase as a support for the
"6
core.
ג,
or
or
Figures 7 and 7 shew a "stud" or "chaplet" formed by spirally winding a strip
of "tin-plate" into a cylinder, which may be done upon a mandril and cut to the
required sizes to suit the thickness of the metal casting.
"
Figures 8 and 8, 9, 94 and 9 represent supports for the "cores" of pipes,
technically called "pipe-nails," in different forms, 8 and 8* having a flat shank
with a head or crutch curved to fit the circle of the core and Figures 9, 94 and 98
having the shank of a cruciform section to give it greater strength for heavy
" cores "both forms allowing the molten metal free access to their surfaces.
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 :-
::
First The use of " tinplate as a material in the manufacture of moulders
"studs" "
chaplets" or "core" supports in the manner and with the objects herein-
before set forth.
<<
Second The construction of "moulders studs ""chaplets" or "core" supports of
tinplate," in such forms as to secure strength and stability and to allow free access
of the molteu metal to their surfaces so that they fuse and become homogeneous
with the casting which is thus free from porous or unsound places in their vicinity
with the objects hereinbefore set forth and substantially as described and shewn by
the drawings herewith.
Dated this 24th day of March 1
T. J. DANSON, F. Inst. P.A.,
Chartered Patent Agent,
Newcastle-upon-Tyne, Agent for Applicant.