IMPROVEMENTS IN WOOD PLANING MACHINES
Year: 1875

page_text: LETTERS PATENT to George Haseltine, of the "International Patent
Office," Southampton Buildings, London, Doctor of Laws, for the
Invention of "IMPROVEMENTS IN WOOD PLANING MACHINES."-A com-
munication from abroad by Daniel Libby Toppan, of Somerville,
David Cass Meloon, of East Cambridge, Gardner Baker Chapin, of
Medford, and Hopkins Horton Meloon, of East Cambridge, all
in Massachusetts. United States of America.
COMPLETE SPECIFICATION filed by the said George Haseltine at the
Office of the Commissioners of Patents, with his Petition and
Declaration, on the 18th March 1875, pursuant to the 9th Section
of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
HASELTINE, of the "International Patent Office," Southampton
Buildings, London, Doctor of Laws, send greeting.
WHEREAS I am in possession of an Invention for "IMPROVEMENTS IN

page_text: me, my executors, administrators, and assigns, Her Royal Letters Patent
for the same, and have made solemn Declaration that it has been
communicated to me from abroad by Daniel Libby Toppan, of Somer-
ville, David Cass Meloon, of East Cambridge, Gardner Baker Chapin,
of Medford, and Hopkins Horton Meloon, of East Cambridge, all in
Massachusetts, United States of America.
NOW KNOW YE, that I, the said George Haseltine, do hereby declare
that the following Complete Specification, under my hand and seal, fully
describes and ascertains the nature of the said Invention, and in what
manner the same is to be performed, in and by the following state-
ment, reference being had to the accompanying Drawing forming a
part of this Specification:-
In planing knotty and cross-grained lumber in machines of the present
construction the knots are often broken and thrown out, and the fibres
of the cross-grained portions are displaced, thus leaving the surface rough
and uneven.
To overcome these difficulties is the object of this Invention, which
consists in imparting to the cutter shaft a simultaneous lateral and rotary
motion, whereby the knives are caused to revolve in constantly changing
vertical planes, thus producing a shearing cut, the effect of which is to s
prevent the removal of the knots, and to give the cross-grained portions
a smooth and even surface.

page_text: thereto to move transversely across the surface of the board being planed,
a shearing or drawing cut being thus produced, which reduces the knots
and cross-grained portions of the lumber, and leaves a smooth and even
surface, as desired, which cannot be accomplished where the cutters
revolve in the same vertical plane as heretofore. Instead of a cam
groove within the bearing a for the reception of a stud or pin on the
cutter shaft the latter may be provided with a cam groove for the recep-
tion of a stationary pin or projection, or the cutter shaft may receive its
lateral motion by means of any other suitable mechanical device.
Having thus fully described the said Invention as communicated to
me by my foreign correspondents, and the manner of performing the
same, I wish it understood that I claim in a wood planing machine, the
cutter shaft B having a simultaneous lateral and rotary motion, as herein
set forth and for the purpose specified.
In witness whereof, I, the said George Haseltine, have hereunto set
my hand and seal, this Eighteenth day of March, in the year
of our Lord One thousand eight hundred and seventy-five.
Witness,
HY. JAS. NOONE.
GEORGE HASELTINE. (L.S.)