Year: 1886

page_text: Date of Application, 29th July, 1886.
Complete Left, 6th May, 1887.
Complete Accepted, 29th July, 1887
I DENNIS RAGG of 37 Mainsforth Terrace, Sunderland in the county of Durham,
Engine Fitter, do hereby declare the nature of my invention to be as follows:-
This invention relates to a certain new or improved automatic governor for marine
engines, and has for its object to provide a means for automatically controlling the
steam supply to the engine by and according to the motion of the ship, so as to
prevent the screw racing" when raised out of the water. A ball, grooved disc, or
other suitable travelling weight, of suitable size, weight, and material, is mounted in a
guide frame fixed in the fore and aft direction of the ship, and in any convenient
position adjacent to the main steam valve. The ball or weight is free to travel to and
fro in the frame according as the ship's head moves up and down, and its line of
travel is directed by suitable guides. The guide frame is or may be adjustable as
regards its horizontal position. Upon or near the guide frame a three armed lever,
or its equivalent, is centred; one arm of which is connected to the main steam valve,
and the other two arms so disposed that the ball or weight travels between them, or is
otherwise adapted to actuate the said lever. As the ship's head goes down the ball
or weight travels along its frame, imparts motion to one of the arms and actuates the
steam valve to shut off steam from the engine. When the screws again enters the
water the ball or weight travelling back imparts motion to the other arm and again
admits steam. The governor may be adjusted to operate at any degree of motion of
the ship, or so that the steam will be shut off each time the screw is raised out of
the water.
Dated this 29th day of July 1886.
J. C. CHAPMAN,
70, Chancery Lane,
Agent for Applicant.

page_text: COMPLETE SPECIFICATION.
A New or Improved Automatic Governor for Marine Engines.
I DENNIS RAGG of 37, Mainsforth Terrace Sunderland in the county of Durham
Engine Fitter do hereby declare the nature of my invention for A NEW OR IMPROVED
AUTOMATIC GOVERNOR FOR MARINE ENGINES and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:
And has for its object to provide a means for automatically controlling the steam
supply to the engine by and according to the motion of the ship so as to prevent the
screw "racing" when raised out of the water. A ball, grooved disc, or other suitable
travelling weight of suitable size (4) weight and material is mounted in a guide
frame (1) fixed in the fore and aft direction of the ship and in any convenient position
adjacent to the main steam valve (9). The ball or weight (4) is free to travel to and
fro in the frame according as the ship's head moves up and down, and its line of
travel is directed by suitable guides (3). The guide frame (1) is or may be adjustable
as regards its horizontal position by a (screw (adjusting) 5.
Upon or near the guide frame (3) a three armed lever (2) or its equivalent is
centred, one arm of which is connected to the main steam valve (9) and the other
two arms so disposed that the ball or weight (4) travels between then or is otherwise
adapted to actuate the said lever (2). As the ships head goes down the ball or
weight (4) travels along its frame (1) imparts motion to one of the arms and actuates
the steam valve to shut off steam from the engine. When the screw again enters the
water the ball or weight (4) travelling back imparts motion to the other arm and
again admits steam. The governor may be adjusted to operate to any degree of
motion of the ship, or so that the steam will be shut off each time the screw is raised
out of the water by a Elevating or adjusting screw (5).
Having now particularly described and ascertained the nature of my' said invention
and in what manner the same is to be performed, I declare that what I claim as
my invention is
Controlling marine engines by means of a ball or other suitable weight travelling
on a frame as the ship pitches substantially as herein before described and illustrated
in the accompanying drawings.