IM- DRAVEMENT THAN A DAI
Year: 1873

page_text: LETTERS PATENT to Frederick Savage, of Saint Nicholas Iron Works,
King's Lynn, in the County of Norfolk, for the Invention of "IM-
DRAVEMENT THAN A DAI
"
Sealed the 24th June 1873, and dated the 22nd April 1873.
PROVISIONAL SPECIFICATION left by the said Frederick Savage at the
Office of the Commissioners of Patents, with his Petition, on the
22nd April 1878.
I, FREDERICK SAVAGE, of Saint Nicholas Iron Works, King's Lynn, in
the County of Norfolk, do hereby declare the nature of the said Inven-
tion for "IMPROVEMENTS IN TRACTION ENGINES AND ROAD LOCOMOTIVES," to be
as follows:-
This Invention has for its object improvements in traction engines
and road locomotives.
In working traction engines and road locomotives difficulty is often
experienced in starting the engine out of a rut or hole into which it
may have sunk, and often much time is thus lost, and even occasionally

page_text: damage is done by raising the pressure of the steam beyond the proper
limit, with the object of lifting the engine out of a hole. I overcome
these difficulties by providing the engine with a powerful hand purchase,
by which it may be slowly turned by manual labor acting either alone
or to aid the steam power. By means of a crank handle motion is given
to a worm which gears into a worm wheel, and on the axis of the worm
wheel is a pinion gearing into teeth upon the fly wheel of the engine.
The hand gear is only used for starting the engine, and then it is
thrown out by sliding the pinion along its axis.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Frederick Savage in the Great Seal Patent Office
on the 22nd October 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, FREDERICK
SAVAGE, of Saint Nicholas Iron Works, King's Lynn, in the County of
Norfolk, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-second day of April, in the year of our
Lord One thousand eight hundred and seventy-three, in the thirty-sixth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said Frederick Savage, Her special license that I, the
said Frederick Savage, my executors, administrators, and assigns, or such
others as I, the said Frederick Savage, my exccutors, 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 "IMPROVEMENTS IN TRACTION ENGINES AND ROAD
LOCOMOTIVES," upon the condition (amongst others) that I, the said
Frederick Savage, my executors or administrators, by an instrument 'in
writing under my, or their, or one of their hands and seals, 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.

page_text: is a pinion which, whilst it must always rotate with the axis p, can be.
made to slide upon the axis into or out of gear with the internal teeth e¹
within the fly wheel e.
Having thus described the nature of my said Invention, and the manner
of performing the same, I would have it understood that I claim, as my
improvements in traction engines and road locomotives, the combination
therewith of a hand purchase substantially as described.
In witness whereof, I, the said Frederick Savage, have hereunto
set my hand and seal, this Eighteenth day of October, in the
year of our Lord One thousand eight hundred and seventy-three.