IMPROVEMENTS IN STEAM ENGINE GOVERNORS AND SPEED REGULATORS FOR MACHINERY
Year: 1872

page_text: LETTERS PATENT to Robert Brough, of Sunderland, for the Invention
of "IMPROVEMENTS IN STEAM ENGINE GOVERNORS AND SPEED REGULATORS
FOR MACHINERY."
Sealed the 26th April 1872, and dated the 5th February 1872.
PROVISIONAL SPECIFICATION left by the said Robert Brough at the
Office of the Commissioners of Patents, with his Petition, on the 5th
February 1872.
'
I, ROBERT BROUGH, of Sunderland, do hereby declare the nature of
the said Invention for "IMPROVEMENTS IN STEAM ENGINE GOVERNORS AND
SPEED REGULATORS FOR MACHINERY," to be as follows:-
My improvements in steam engine governors or speed regulators for
marine or stationary engines relate to that description of governor
known as the fly wheel governor, the action of which depends upon
what may be termed the principle of differential velocities, and consists
'

page_text: partly in simplifying this form of governor by dispensing with
superfluous parts, thereby effecting economy in first cost, but mainly in
rendering more certain, prompt, and efficient its action by improved
construction, arrangements, and disposition of parts, that is to say, I
use a fly wheel with hollow shaft forming one journal for a band pulley
shaft; the friction between the hollow shaft of the fly wheel and
enlarged boss on band pulley shaft assisting to drive the fly wheel. A
sliding tube with slot and two horns or studs working backward and
forward on the band pulley shaft inside of hollow shaft of the fly wheel
being connected direct to throttle or regulator valve with ball and socket
joint termed universal joint, regulating steam to engines as may be
required. On the outer end of the band pulley shaft is the driving arm
or horn with radius link connected by ball and socket joint or universal
joint. The link is connected to arm or horn on sliding tube with ball
and socket joint. An arm or horn bolted in a slot on the hollow shaft
of fly wheel may be moved to or from the arm or horn as the force of the
governor may require. The link is connected between the two horns or
studs working on band pulley shaft with ball and socket joints.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Robert Brough in the Great Seal Patent Office
on the 3rd August 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ROBERT
BROUGH, of Sunderland, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifth day of February, 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 Robert Brough, Her special licence that I, the
said Robert Brough, my executors, administrators, and assigns, or such
others as I, the said Robert Brough, 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

page_text: Kingdom of Great Britain and Ireland, the Channel Islands, and Isle of
Man, an Invention for "IMPROVEMENTS IN STEAM ENGINE GOVERNORS AND
SPEED REGULATORS FOR MACHINERY," upon the condition (amongst others)
that I, the said Robert Brough, 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: so long as substantially the same arrangements as herein-before described
are followed, and I do not claim such details per se and apart from the
purposes of my said Invention.
In witness whereof, I, the said Robert Brough, have hereunto sent
my hand and seal, this First day of August, in the year of our.
Lord One thousand eight hundred and seventy-two.
Witness,
JOHN SMILES,
↓
3, Westgate Hill Terrace,
Newcastle-upon-Tyne.
ROBERT BROUGH. (L.S.)