Improvements in and relating to Auger Bits.
Year: 1893

page_text: Date of Application, 14th Aug., 1893-Accepted, 7th Apr., 1894
COMPLETE SPECIFICATION.
Improvements in and relating to Auger Bits.
I, ABRAHAM LINCOLN ADAMS, a citizen of the United States of America.
residing at Golden Hill Hotel, in the City of Bridgeport, County of Fairfield, and
State of Connecticut, one of the United States of America, Manufacturer, 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 relates to certain improvements in auger bits, but has special
reference to that class of such devices employing a circular scoring ring to cut out
the chips prior to their removal by the cutter...
The object of the present invention is to provide a construction which shall be
especially adapted for cutting out rosettes and for forming seats within which they
may
be located.
In the accompanying drawing-
Figure 1 is-a perspective of my improvement;
Figure 2, a side elevation thereof;
Figure 3, a section at the line x-x of Figure 2;
Figure 4 a detail of the cutter;
Figure 5
improvement;
perspective of a
rosette bleek as it appears when out out by my
Figure 6, a perspective of a rosette cut out by my improvement, and
Figure 7 is a plan view of such block and rosette in proper assembled position.
Similar numbers of reference denote like parts in the several figures of the
drawing.
This invention is especially applicable, as hereinbefore stated, to auger bits which
employ a scoring ring and in this connection I would state that it is immaterial
whether the ring is integral with the head of the bit, or is detachably secured
thereto, and since my invention has no reference to any part of such bit save the
cutter, I will not herein enter into any details of description except as to the parts
immediately identified with my invention.
1, is the head of the bit, 2 the shank extending rearwardly therefrom, and 3 the
circumferential ring around the head provided with a cutting edge 4.
5 is a gate
which extends through said ring and into said head to a point about midway of the
diameter thereof. 6 is the cutter which is secured within said gate to said head by
means of screws 7 passed through the ring and head into the cutter. The edge of
this cutter is slightly below the horizontal plane of the cutting edge of the ring,
whereby the latter may sever the chips before they are removed by the cutter.
This cutter extends through the gate 5 beyond the ring and is conformed as to its
edge outside such ring to any desired contour.
In cutting out rosettes, any suitably conformed cutter may be secured to the
head 1 inside the ring 3, the latter operating to sever the rosette from the slab of
wood after the desired contour has been formed by the cutter. The extension
cutter, shown in the drawings, is then substituted in the head and a seat for such
rosette is cut out, while at the same time a concentric ornamental ring is formed by
the action of that part of the cutter which extends outside of the ring.
Referring to Figures 5 and 6, 8 is the seat for the rosette, 9 the ornamental
concentric design around such seat, and 10 the rosette. Of course the rosette and
the external ornamentation may be formed at the same time by the continuous
operation of a cutter such as is shown in the drawings, and the object in using a
D31
improvement;
Figure 6, a perspective of a rosette cut out by my improvement, and
Figure 7 is a plan view of such block and rosette in proper assembled position.
Similar numbers of reference denote like parts in the several figures of the
drawing.
This invention is especially applicable, as hereinbefore stated, to auger bits which
employ a scoring ring and in this connection I would state that it is immaterial
whether the ring is integral with the head of the bit, or is detachably secured
thereto, and since my invention has no reference to any part of such bit save the
cutter, I will not herein enter into any details of description except as to the parts
immediately identified with my invention.
1, is the head of the bit, 2 the shank extending rearwardly therefrom, and 3 the
circumferential ring around the head provided with a cutting edge 4.
5 is a gate
which extends through said ring and into said head to a point about midway of the
diameter thereof. 6 is the cutter which is secured within said gate to said head by
means of screws 7 passed through the ring and head into the cutter. The edge of
this cutter is slightly below the horizontal plane of the cutting edge of the ring,
whereby the latter may sever the chips before they are removed by the cutter.
This cutter extends through the gate 5 beyond the ring and is conformed as to its
edge outside such ring to any desired contour.
In cutting out rosettes, any suitably conformed cutter may be secured to the
head 1 inside the ring 3, the latter operating to sever the rosette from the slab of
wood after the desired contour has been formed by the cutter. The extension
cutter, shown in the drawings, is then substituted in the head and a seat for such
rosette is cut out, while at the same time a concentric ornamental ring is formed by
the action of that part of the cutter which extends outside of the ring.
Referring to Figures 5 and 6, 8 is the seat for the rosette, 9 the ornamental
concentric design around such seat, and 10 the rosette. Of course the rosette and
the external ornamentation may be formed at the same time by the continuous
operation of a cutter such as is shown in the drawings, and the object in using a
[D021

page_text: separate cutter for the purpose of cutting out the rosettes, is to permit the latter to
be formed from wood different in color from the rosette seating.
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 1
claim is
-
1. In an auger bit, the combination of the head having there around a scoring
ring provided with a cutting edge, and having a gate extending through such ring
to a point about midway of such head, and a cutter detachably secured within such
gate to said head and extending laterally outside said gate beyond the edge of said
ring, substantially as set forth.
2. In a device of the character described, the combination of the bit head having
a circumferentially disposed scoring ring and provided with a gate extending through
such ring and head to a point about midway of the latter, and a cutter detachably
secured to such head in a plane below the edge of said ring and extending on
opposite sides of the latter, substantially as set forth.
Dated this 14th day of August 1893.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.