IMPROVEMENTS IN APPARATUS FOR CUTTING AND PLANING WOOD AND OTHER 'LIKE SUBSTANCES
Year: 1872

page_text: LETTERS PATENT to Samuel Last, of Grafton Street, Mile End, in
the County of Middlesex, Foreman Cooper, for the Invention of
"IMPROVEMENTS IN APPARATUS FOR CUTTING AND PLANING WOOD AND OTHER
'LIKE SUBSTANCES."
Sealed the 16th July 1872, and dated the 30th January 1872.
PROVISIONAL SPECIFICATION left by the said Samuel Last at the
Office of the Commissioners of Patents, with his Petition, on the
· 30th January 1872.
I, SAMUEL LAST, of Grafton Street, Mile End, in the County of
Middlesex, Foreman Cooper, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN APPARATUS FOR CUTTING AND PLANING
WOOD AND OTHER LIKE SUBSTANCES," to be as follows:-
This Invention consists of a combined circular saw and rotatory plane,
whereby the rough saw marks are removed from the wood or other
material, being cut simultaneously with the sawing operation.

page_text: In carrying out this Invention it is proposed to form one or more
plane cutters on one or both sides or faces of the saw, so that as these
cutters pass over and in contact with the newly sawn surfaces they
will remove the roughness or saw marks therefrom, and leave the said
surfaces smooth and true.
It is obvious that various modes of practically carrying out my
Invention may be adopted; for example, the said plane cutters may be
produced by cutting openings through the saw, and forcing outwards or
raising slightly one edge of such opening above the general plane of the
side of the saw, which edge is to be sharpened like a plane iron to give
the requisite smoothness of cut; or the saw may be specially prepared
by having a slight increase in the thickness of the metal at the part
where the plane cutter is to be formed, in lieu of hammering or other-
wise forcing outwards or raising from the general face of the saw that
portion of the metal which is to form the plane cutter; or a separate
plane cutter may be dovetailed or otherwise fitted into the side or face
of the saw.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Samuel Last in the Great Seal Patent Office on
the 20th July 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SAMUEL
LAST, of Grafton Street, Mile End, in the County of Middlesex, Foreman
Cooper, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirtieth day of January, in the year
of our Lord One thousand eight hundred and seventy-two, in the thirty-
fifth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Samuel Last, Her special license
that I, the said Samuel Last, my executors, administrators, and
assigns, or such others as I, the said Samuel Last, my executors,
administrators, or assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
.

page_text: Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN APPARATUS:
FOR CUTTING AND PLANING WOOD AND OTHER LIKE SUBSTANCES," upon the con--
dition (amongst others) that I, the said Samuel Last, my executors or
administrators, by an instrument in writing under my hand and seal,,
should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
.
NOW KNOW YE, that I, the said Samuel Last, do hereby declare
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement, reference being had to the accompanying Drawings,
and to the letters and figures marked thereon, that is to say :-
My said Invention consists of a combined circular saw and rotatory
plane, whereby the rough saw marks are removed from the wood or
other material, being cut simultaneously with the sawing operation.
"
And in order that my said Invention may be fully understood, I shall
now proceed more particularly to describe the same, and for that purpose
shall refer to the several Figures on the annexed Sheet of Drawings, the
same letters of reference indicating corresponding parts in both the
Figures.
Figure 1 is a side view of a portion of a circular saw showing
my improvements, and Figure 2 is a section along the line 1, 2, in
Figure 1.
According to my Invention I form one or more plane cutters a on
one or both sides or faces of the saw A, so that as the said cutter or
cutters a pass over and in contact with the newly sawn surface or
surfaces they will remove the roughness or saw marks therefrom, and
leave the said surfaces smooth and true.
:
It is obvious that various modes of practically carrying out my
Invention may be adopted; for example, the said plane cutters may be
produced by cutting openings, as shewn in my Drawing, through the
body of the saw, and forcing outwards or raising slightly one edge of
such opening above the general plane of the side of the saw, as
shown clearly in Figure-2, which edge is to be sharpened like a plane

page_text: i
iron to give the requisite smoothness of cut. Or the saw may be specially
prepared by having a slight increase in the thickness of the metal at the
part where the plane cutter is to be formed, in lieu of hammering or
otherwise forcing outwards or raising from the general face of the saw
that portion of the metal which is to form the plane cutter. Or a
separate plane cutter may be dovetailed or otherwise fitted into the side
or face of the saw.
Having now described and particularly ascertained the nature of my
said Invention, and the manner in which the same is or may
be used
or carried into effect, I would observe in conclusion, that what I con-
sider to be novel and original, and therefore claim as the Invention
secured to me by the herein-before in part recited Letters Patent is, the
combination of a plane cutter or cutters with a circular saw, sub-
stantially in the manner and for the purpose herein-before described.
.
.
In witness whereof, I, the said Samuel Last, have to this my
Specification set my hand and seal, the Sixteenth day of July
One thousand eight hundred and seventy-two.
SAMUEL LAST. (L.S.)