nprovements in Moulding Apparatus for Making Cores for Forming Nicks, Holes, or Recesses in the Heads of Cast Screws, Bolts and other Articles.
Year: 1899

page_text: Date of Application, 22nd July, 1899-Accepted, 2nd Sept., 1899
Date of Application, 22nd July, 1899-Accepted, 2nd Sept., 199
COMPLETE SPECIFICATION.
nprovements in Moulding Apparatus for Making Cores for Forming
Nicks, Holes, or Recesses in the Heads of Cast Screws, Bolts and
other Articles.
I, FREDERICK THEOPHILUS GILES, of 152, Coronation Road, in the City and
County of Bristol, Nail Manufacturer, do hereby declare the nature of this
nvention and in what manner the same is to be performed, to be particularly
escribed and ascertained in and by the following statement:-
My invention relates to moulding apparatus for making cores for forming
icks, holes or recesses in the heads of cast screws, bolts and similar articles.
In the accompanying drawings,-
Figure 1 is a sectional elevation of my moulding apparatus for forming cores
for the nicked or recessed heads of wood-screws, bolts, &c.
Figure 2 is a plan thereof; and
Figures 3 and 4 are views of details.
These
77 is a frame carrying a moulding plate ¹ to receive the moulding box n² in the
ordinary manner. o is a plate which is provided with a number of vertical plates
or strips p, shewn more clearly in the detail view Figures 3 and 4.
plates can be made the whole length of the moulding box or in sections and
they can have a serrated upper edge, as shewn in Figure 1 to correspond with
the notches in the different screw-heads or they can be plain, as shewn in
Figure 4 so that a continuous core is formed the whole length of each row or
spray. The plate o is also provided with a number of upright rods or bars o¹,
the upper ends of which bear against the underside of the moulding box n²,
with a rack o² which is adapted to be moved in a vertical plane by the pinion 03
and lever o or by other suitable means, and with adjustable stops of which limit
its upward movement by coming into contact with the underside of the flange at
the upper end of the flange n.
With this arrangement the plate o with the moulding strips p and the fixed
rods of being in the lowermost position, that is to say, with the upper ends of the
rods o flush with the upper face of the moulding plate n', the moulding box n² is
placed in position upon the moulding plate n and is filled and rammed with
sand so as to thereby form the mould with projecting cores for making the nicks
The plate o is now raised through the medium of
in the heads of the screws etc.
the lever o, pinion o³ and rack o2 so that both the moulding box and the moulding
strips p are simultaneously raised thereby allowing the cores formed to be removed
from the moulding plate without being broken off.
Instead of the rack and pinion o³ I can employ other suitable means for
5 raising and lowering the support o, such for example as screw gear. Further-
more, in lieu of making the support o movable and the moulding plate n¹ fixed I
can make the support o fixed and the moulding plate movable.
It will be understood that I can mould square or other shaped holes or recesses
11 of the usual nicks in the head of screws, bolts, nails, etc.

page_text: 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. Moulding apparatus for forming cores for the nicks, holes or recesses in the
heads of cast wood-screws, bolts and the like comprising a frame having a
moulding plate carrying a moulding box, a number of core plates mounted upon
a support; and means for moving the moulding plate and support relatively with
one another, substantially as, and for the purpose, hereinbefore described.
2. The moulding apparatus for forming the cores for the nicks, holes or recesses
in screw-heads, such aparatus comprising the frame n, moulding plate n¹,
moulding box n³, plate or support o carrying the core plates 2 and fixed rods o¹,
means such as the rack 2, pinion o³, lever 04 for simultaneously raising and
lowering the plate or support o, moulding box and mould and the stops o³,
substantially as described and illustrated.
Dated the 22nd day of July 1899
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.