AN IMPROVED MACHINE FOR MORTISING TIMBER
Year: 1869

page_text: LETTERS PATENT to Gabriel Neil Blanc, of Glasgow, in the County
of Lanark, North Britain, for the Invention of "AN IMPROVED
MACHINE FOR MORTISING TIMBER."
Sealed the 21st January 1870, and dated the 24th July 1869.
PROVISIONAL SPECIFICATION left by the said Gabriel Neil Blane
at the Office of the Commissioners of Patents, with his Petition, on
the 24th July 1869.
I, GABRIEL NELL BLANE, of Glasgow, in the County of Lanark, North
Britain, do hereby declare the nature of the said Invention of "AN
IMPROVED MACHINE FOR MORTISING TIMBER," to be as follows, that is to
say:―
This Invention, which relates to an improved machine for mortising
timber, consists of an upright framing or standard to which the moving
parts are attached. The moving parts consist of a foot lever attached
by a pin joint to the lower part of the framing or standard. From the

page_text: back part of this lever a connecting rod passes up and is connected to
another lever at the upper part of the framing or standard. This lever
is carried on a centre or centres fixed in the framing or standard, and
its front end is connected by links to the bar which carries the mortising
tool or tools. Below the mortising tool or tools. an adjustable table for
carrying the timber to be mortised is situated.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Gabriel Neil Blane in the Great Seal Patent
Office on the 24th January 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GABRIEL
NEIL BLANE, of Glasgow, in the County of Lanark, North Britain,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-fourth day of July, in the year
of our Lord One thousand eight hundred and sixty-nine, in the thirty-
third year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Gabriel Neil Blane, Her special
licence that I, the said Gabriel Neil Blane, my exccutors, adminis-
trators, and assigns, or such others as I, the said Gabriel Neil Blane,
my executors, administrators, and 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 Islands, and Isle of Man, an Invention for
"AN IMPROVED MACHINE FOR MORTISING TIMBER," upon the condition
(amongst others) that I, the said Gabriel Neil Blane, my executors,
or administrators, by an instrument in writing under my, or their, or
one of their hands and seals, should particularly describe and ascer-
tain 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 Gabriel Neil Blane, do hereby
declare the nature of my said Invention, and in what manner the same

page_text: is to be performed, to be particularly described and ascertained in and
by the following statement :-
This improved machine for mortising timber, consists of an upright
framing or standard to which the moving parts are attached. The
moving parts consists of a foot lever attached by a pin joint to the
lower part of the framing or standard, and from the back part of such
lever a connecting rod passes up and is connected to another lever at
the upper part of the framing or standard. This lever is carried on a
centre or centres fixed in the framing or standard, and its front end
is connected by links to the bar which carries the mortising tool or
tools. Below the mortising tool or tools an adjustable table for carrying
the timber to be mortised is situated.
Thus far I have described the nature of the said Invention, now,
therefore, in compliance with the said condition in the aforesaid Letters
Patent contained, I will continue the description of the nature of my
said Invention, particularly describing and ascertaining the same, and
in what manner the same is to be performed or put in practice, which I
will do by referring to the accompanying Drawings, as follows:-
In which Drawings Fig. 1 is a front view, and Fig. 2 a side view of
my improved machine.
The Figures on the said Drawings refer to the following parts :-
A, the upright framing or standard; A', the foot lever; A*, the upper
lever which is made forked, motion being communicated from the foot
lever A' to the upper lever A' by a back rod *; B, spindle for the mortising
tool; C, tool in spindle; D, handle for reversing the spindle and tool;
E, spring catch to keep the spindle in the proper place when it is
reversed; F, gauge to move to any depth of wood and keep the wood
from lifting when the spindle with the tool is rising; G, pinching pins
to fix the gauge to any height; H, screws for shifting the table in
or out from I to J; K, wheel to lift the table up or down to any height
required, that is, by means of the rack wheel on its (K's) axis which
acts on the rack, shewn in the Drawing; L, strong bolt to fix the
table when at the proper height.

page_text: Having now particularly described and ascertained the nature and
object of my said Invention, and in what manner the same may be
carried out in practice, I hereby declare that I claim, the Invention
for "An Improved Machine for Mortising Timber," the moving parts
whereof consist of a foot lever, a spindle for the tool in which the tool
is secured, a handle for reversing same, a spring catch or other equivalent
means of keeping the spindle in position when reversed, a guage for
depth of work, pinching pins or other equivalent means of fixing the
gauge as may be required, screws or other equivalent means of shifting
the table, a wheel or other means for lifting same, and a bolt or other
means of fixing the table; but I do not claim these parts per se and
apart from the use or purpose for which they are adopted by me..
I witness whereof, I, the said Gabriel Neil Blane, have hereunto
set my hand and seal, this Eighteenth day of January, in the
year of our Lord One thousand eight hundred and seventy.
Witness,
GABRIEL NEIL BLANE. (L.S.)
JAMES PATERSON, M.D.,
6, Windsor Place,
Sauchiehall St.