Year: 1886

page_text: I, ALEXANDER PAICE of 2 Pelham Villas The Strand Ryde Isle of Wight
Cabinet maker, do hereby declare the nature of this invention to be as follows:-
My invention consists of a bit for boring round holes having the bottoms quite
level and without either the usual indentations made by a point or screw in the
centre, or cutter marks round the circumference.
The bit is made of steel or suitable metal in the form of a hollow tube with a
cutter or cutters extending from the outside to the centre. The cutting edge pro-
jecting from the end of tabe the thickness of shaving intended to be taken. The
waste wood when using the bit passes up the tube to an outlet provided for
its exit.

page_text: An Improved Bit for Boring Holes in Wood and other Sub-
stances to leave the Bottom of Hole Perfectly Flat with no
Indentations.
I, ALEXANDER PAICE, of 2 Pelham Villas, The Strand, Ryde, Isle of Wight,
Cabinet 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 refers to an improved boring bit, and has for its object so to
construct boring bits that the hole or aperture made by same shall be perfectly
level at bottom, and without the indentation formed by a point or screw in the
centre as with the boring bit of ordinary construction; and also that the side or
circumference of the holo or aperture shall be smooth and free from cutter marks.
And in order that my invention may be fully understood reference is had to the
accompanying drawings, of which Figure 1 is an elevation of the boring bit, pro-
vided with flat cutter, and constructed in accordance with this invention: Figure 2
shews the lower end of bit provided with a spiral cutter, and with an adjustable
stop; and Figure 3 is a section through line A A Figure 1.
Similar letters of reference refer to like parts in each figure.
According to my invention I make the bit of steel or other suitable metal in the
form of a hollow tube F, with a cutter, or cutters G extending from the outside to
the centre, The cutters G I either fix immovably to the inside of tube F, or
I form them so as to run in dovetailed, or other suitably shaped, slots, as best seen
at Figure 3.
.
In the case of the cutter running loose in slots I have the upper part extended
in the form of a small rod B which passes up the centre of the tube F; and tapped
on the end of this rod B I have a small thumbscrew C.
The waste wood, when the bit is used, passes up the tube F, and outwards
through openings H formed in same, for the exit of such waste.
The upper end of the tube F is closed in solid, and has a hole provided for the
upper end of rod B to work in. It is also formed with two projections D (or it
may be one projection extending right across) below the thumbscrew C.
The lower end of the tube F is formed so as to receive the cutter, and is
sharpened on the inside, and the bit is also provided with an adjustable stop E,
see Figure 2.
In the case of small sized bits there may be only one cutter extending to the
centre of tube instead of right across, as above described.
When it is desired to use the bit the thumbscrew C is turned so as to withdraw
the cutter from the end of tube F, then when the bit is sufficiently started the
thumbscrew C is turned back, and so causes the cutting edge to project to the
required distance from the end of tube F, and consequently if properly sharpened
the tool leaves the bottom of the hole perfectly flat, and with no indentations.

page_text: When it is desired to apply this invention to augers, I preferably fix the cutter
so as to project the required distance from the end of the tube, and the tube
may remain intact with the opening at the top for the waste wood to pass
outwards.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what
I claim is:
The new or improved Boring Bit or Tool composed of the metal tube F, the
cutter G with stem B and regulating thumbscrew C, substantially as herein-before
described and illustrated in the accompanying drawings, together with any mere
modification or modifications thereof, for boring holes in wood and other substances
and leaving the bottom of the hole perfectly flat, and with no indentation.