An Improved Attachment for Use in Moulding and Fret Cutting.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
An Improved Attachment for Use in Moulding and Fret Cutting.
I, JOHN BELLI of 1 Ravey Street Great Eastern Street London E.C.
Moulding Maker do hereby declare the nature of this invention to be as
follows:-
My invention consists in a composite attachment whereby I am enabled from
any given design to cut a fret and mould the same if required at one operation.
The attachment is formed from a piece of steel or other suitable metal one end
of which is screwed to fit the nose of the revolving cutter stock, the reverse end
being of a conical shape and terminating in a parallel spindle of small diameter the
point of which is fashioned after the manner of a wood boring bit. A slot hole is
formed through the central part of the attachment and extends nearly to the apex
of the cone, or in some cases it may be prolonged a suitable distance up the
parallel part of the spindle. In the slot thus formed the moulding cutter is
placed and securely fastened by a set screw. The operation of my invention is as
follows:-
The design for the fret is pasted upon the piece of wood to be cut in the usual
manner, and the stock carrying the attachment set in motion. The piece of wood
is now forced down upon the bit shaped end of the attachment and by a species of
routing action the pattern is cut out.
If now it is desired to cut and mould duplicates the fret thus cut is placed upon
another piece of wood which is forced down as before upon the bit shaped end of
the attachment, a similiar routing action again takes place, the parallel end of the
attachment travelling round the design already formed in the template fret, thus
acting as a guide to the moulding cutter beneath it. It will be seen that by
means of my invention a fret can be marked out, cut and moulded at one
operation.
Frets cut in the ordinary way with the saw can also be moulded by means of my
invention.
1, JOHN BELLI, of 1 Ravey Street, Great Eastern Street, London E.C.
Moulding Maker, 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 :-
My invention consists in a composite attachment whereby I am enabled from any
given design to cut a fret and mould the same if required at one operation.

page_text: The attachment is formed from a piece of steel or other suitable metal one end
of which is screwed to fit the nose of the revolving cutter stock, the reverse end
being of a conical shape and terminating in a parallel spindle of small diameter, the
point of which is fashioned after the manner of a wood boring bit. A slot hole is
formed through the central part of the attachment and extends nearly to the apex
of the cone, or in some cases it may be prolonged a suitable distance up the parallel
part of the spindle.
In the slot thus formed the moulding cutter is placed and securely fastened by a
set screw.
The operation of my invention is as follows:-The design for the fret is pasted
upon the piece of wood to be cut in the usual manner and the stock carrying the
attachment set in motion.
The piece of wood is now forced down upon the bit shaped end of the attachment
and by a species of routing action the pattern is cut out.
If now it is desired to cut and mould duplicates the fret thus cut is placed upon
another piece of wood which is forced down as before upon the bit shaped end
of the attachment, a similar routing action again takes place, the parallel end
of the attachment travelling round the design already formed in the template
fret, thus acting as a guide to the moulding cutter beneath it. It will be seen
that by means of my invention a fret can be marked out cut and moulded at
one operation.
Frets cut in the ordinary way with the saw can also be moulded by means of my
invention.
I will now proceed to describe my invention more particularly by means of the
accompanying drawing in which :-
Fig. 1, is a side elevation of the composite attachment mounted in stock.
Fig. 2, is a front elevation.
Fig. 3, is a diagramatic view of ordinary moulding table shewing cutter stock
and attachment in position.
Fig. 4, is a perspective view shewing the attachment employed in fret cutting.
Fig. 5, is a perspective view shewing the attachment employed in moulding.
Fig. 6, is a section on line A. B. Fig. shewing fret and moulding.
In the drawing 1, is the body of the attachment the reverse end of which is
threaded as at 2, and screwed into the revolving stock 3, a slot hole 4, is formed
through the body of the attachment and extends for a short distance up the
parallel spindle 5.
This spindle is pointed at its extremity and grooved out after the manner of a
wood boring bit. The moulding cutter 6, is formed from a piece of steel to the
required shape and clamped in position within the slot hole 4, by means of the set
screw 7.
The operation of my invention is as follows:-The design for the fret is first
marked out on the wood as at 10. See Fig. 4. The cutter and attachment
are screwed into the stock 3 and adjusted to the proper height for the thickness
of the material operated upon by a rising and falling table or equivalent means.
A rapid revolving motion is now given to the attachment see Fig. 3, and the
wood forced first downwardly upon its point, and then after perforation in a side
way direction following the contour of the design traced; a sort of routing action
takes place and the fret is rapidly cut out.
If it is desired to produce a moulding the fret cut in the manner described which
for the purposes of description is identified by the Figure 8, is laid upon another
piece of wood 9, and the attachment adjusted to the altered height. The flying
cutter 6 now comes into action and produces the moulding as shewn in the
undermost piece of wood marked 9, see Figs. 5 and 6, the parallel spindle
acting as a guide to the cutter beneath it. It is obvious that with wood of
sufficient thickness the fret can be cut and the moulding effected at one
operation, moreover frets cut with the saw in the ordinary way can be moulded

page_text: by means of the composite attachment described. It will be seen that a single
fret can be used as a template for any number of frets or mouldings.
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 ;-
1st. The composite attachment for the purpose of cutting frets and mouldings or
either at will constructed, mounted, actuated, and operating substantially in the
manner and for the purposes herein described.
2. In apparatus for cutting frets and mouldings at one operation or otherwise,
the combination of the body 1, having the slot 4, extending upwards and into the
parallel spindle 5 which is grooved and pointed as described, the moulding cutter 6,
secured by set screw 7, in said slot 4, and the screwed shank 2, for attachment to
the revolving stock, the respective parts co-operating for the purposes or purpose
described.
Dated this 25th day of February 1897.
FRANCIS M. ROGERS,
21 Finsbury Pavement, London, E.C., Agent for Applicant.