Year: 1899

page_text: Date of Application, 1st Mar., 1899
Complete Specification Loft 1ct Don 1000 Aooontod 6th Ian
1000
I, JAMES MUIR, of 6, Regent Moray Street, Overnewton, Glasgow, Engineer,
do hereby declare the nature of this invention to be as follows:-
-
This invention relates to the steering gear of ships and it has for its object
to provide means whereby the hand steering gear can be shipped by merely turning
the hand steering wheel.
The shipping is effected under this invention, by means of gab arms or rods
which are connected to the nuts on the steering wheel shaft in the usual way.
These arms or connecting rods fall into gear on being moved into position by
the turning of the steering wheel.
The arms are kept in working position by a taper pin passing through the
bracket in which they work and the arm itself.
Dated this 28th day of February 1899.
H. D. FITZPATRICK,
100, Wellington Street, Glasgow, Agent.
I, JAMES MUIR, of 6, Regent Moray Street, Overnewton, Glasgow, Engineer,
do hereby declare the nature of this invention and in what manner the same is
to be performed, to be particularly described and ascertained in and by the
following statement;-
-
This invention relates to the steering gear of ships and it has for its object to
provide means whereby the hand steering gear can be shipped by merely turning
the hand steering wheel.
The arrangement is extremely simple.
In order that my said invention may be properly understood I have hereunto
appended an explanatory sheet of drawings, whereon,
Fig. 1 is a plan view of a combined hand and steam steering gear having my
invention applied thereto.
Fig. 2 is a side elevation of the same.
Fig. 3 is a view of one of the gab arms.
On the drawings the same reference letters wherever repeated indicate the same
parts.
a is the rudder cross head. b is the hand steering wheel.
c is the hand steering

page_text: wheel shaft with its right and left handed screws c² and c². d, d', are the nuts
working on the shaft c. e is the guide bar for the nuts. f is the quadrant con-
nected to the tiller f¹ for steering in the usual manner by means of chains from
the steam steering engine.
Under my invention a gab army is connected to the nut by means of the
joint h and pivot pin i which latter is passed through an extension on the nut d.
A second gab arm gl is also connected to the nut d by means of a joint h¹ and
pivot pin which latter is passed through an extension on the nut d. Each
gab arm, as shown at Fig. 3, has a long open slot j and a deep gab k. A jaw or
bracket is made at each end of the rudder cross head for the reception of the
gab arms. A strong pin m is passed through each jaw and through the gab of
each arm.
n are the stops for limiting the movement of the tiller f¹.
As will be seen the joints h, h¹, are so made that the gab arms can be moved in
a vertical as well as a horizontal plane.
Whenever it is desired to ship the hand steering gear the wheel b is turned
until the movements of the nuts d, d¹, on the shaft c, cause the gab arms to catch
by their gabs the pins m of the jaws . The weight of the arms g, g¹, is usually
sufficient to retain the pins m in place in the gabs k but to prevent the possibility
of them moving out of place the jaws 7 may be locked to the arms g, g¹, by means
of tapered pins o passed through holes in the arms and the jaws. When the hand
steering gear is shipped as aforesaid the turning of the wheel b causes the nuts d, d',
to move and thereby actuate the gab arms and the rudder cross head.
When it is desired to unship the hand gear and steer by means of the tiller fl
the pins
o are withdrawn and the arms g, y', raised up slightly, by hand, so as to
disengage the pins m from the gabs k, and, thereafter the nuts d, dare, by turn-
ing the wheel b, moved back to the ends of the screw shaft c. When this has been
done the tiller f' can be freely moved by the usual chains without affecting the
hand rear as the pins m at each movement of the tiller, simply slide along the
slots of the arms without moving the latter.
The stops are so arranged as to prevent the tiller, when the hand gear is
unshipped, moving to such an extent as to force the pins m into engagement with
the gabs k.
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 consider novel and desire to claim is;-
-
The application and use of gab arms substantially as and for the purpose set
forth.