Year: 1887

page_text: Position into which they may be Turned.
I, THOMAS GEORGE STEVENS of Rectory Cottage Swanscombe in the County
of Kent Engineer do hereby declare the nature of this invention to be as
follows:-
In the specification of a former Patent granted to me No. 169 in the year 1887 I
described a method of retaining a ships steering wheel by placing a friction band
around a rigger fixed on the steering wheel shaft and by tightening this band more or
less around the rigger by right and left handed screw threads cut on a spindle such
screw threads being made to screw into corresponding screw nuts pivotted to the two
ends of the band and the spindle being retained in fixed bearings. In the specification
of a subsequent Patent applied for by me No. 1453 in the year 1887 I described the
application of a similar friction band to the rudder head or to a disc or discs made to
turn with the head.
To facilitate the construction of the apparatus and to facilitate its being readily
taken apart or put together I now make one of the screw threads of larger diameter
than the other so that the smaller one can be passed freely endwise through the nut of
the larger one.
In order also that the whole strain for retaining the bands from turning may not
come upon the screw spindle I form the bands with radial pins or projections from its
exterior to fit into corresponding radial recesses in the fixed standards which carry the
bearings for the screw spindles or the pins might be on the standards and the recesses
in the bands.
When the band is to be applied around a rigger on the shaft of the steering, wheel
I also according to my present invention carry the spindle on which the screw threads
are cut in a metallic frame which is fixed on to the top of a fixed standard that is in

page_text: close contiguity with the steering wheel.. The standard is forked at the upper end for
the shaft with the rigger upon it to pass through...
The metallic frame is formed with feet at its ends to rest on and be secured to the
top of the fork.
The screw spindle I make to pass through and project beyond both ends of the
metallic frame and I secure a small hand wheel or arm on to each of its ends to allow
of its being turned by hand either from the one side or the other of the steering wheel
or the turning of the screw spindle might be effected by a treadle.
Dated this 30th day of September 1887.
CARPMAEI, & Co.,
Agents for the Applicant.

page_text: Position into which they may be Turned.
I, THOMAS GEORGE STEVENS, of Rectory Cottage, Swanscombe, in the County of
Kent, 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 :-
In the Specification of a former Patent granted to me No. 169 in the year 1887 1
described a method of retaining a ships steering wheel by placing a friction band
around a disc or rigger fixed on the steering wheel shaft and by tightening this band
more or less around the rigger by right and left handed screw threads cut on a spindle.
such screw threads being made to screw into corresponding screw nuts pivotted to the two
ends of the band and the spindle being retained in fixed bearings. In the specification
of a subsequent Patent applied for by me No. 1453 in the year 1887, I described the
application of a similar friction band to the rudder head or to a disc or discs made to
turn with the head.
To facilitate the construction of the apparatus and to facilitate its being readily
taken apart or put together I now make one of the screw threads of larger diameter
than the other so that the smaller one can be passed freely endwise through the nut of
the larger one.
In order also that the whole strain for retaining the bands from turning may not
come upon the screw spindle I form the bands with radial pins or projections from their
exterior to fit into corresponding radial recesses in fixed standards or the pins might
be on the standards and the recesses in the bands.
The above arrangements are shewn at Figures 1 and 2 of the drawings hereunto
annexed-Figure 1 is an exterior view and Figure 2 a section through the line 1-1-
Figure 1.
A is the disc or wheel-B a metallic band around it preferably lined with wood-
CCare screw nuts pivotted to the ends of the band-D is a spindle with two screw
threads cut upon it of different diameters one right handed and the other left handed
and one screwing into ono nut and the other into the other nut-E is a metallic
block or frame by which the spindle D is supported-F is a radial projection
from the band B entering a corresponding recess in a fixed block.
If the disc or wheel A is fixed on the rudder head or is geared to the rudder head
to turn with it as described in the specification of my former Patent the spindle D can
be prolonged to any part of the vessel at which the steering wheel or mechanism
may be situated so that a partial turn may be given to it whenever requisite by the
steersman.
When the band is to be applied around a rigger on the shaft of the steering wheel
I also according to my present invention carry the spindle on which the screw threads
are cut in a metallic frame which is fixed on to the top of a fixed standard that is in
close contiguity with the steering wheel. The standard is forked at the upper end
for the shaft with the rigger upon it to pass through.

page_text: The metallic frame is formed with feet at its ends to rest on and be secured to the
top of the fork.
•
The screw spindle I make to pass through and project beyond both ends of the
metallic frame and I secure a small hand wheel or arm on to each of its ends to allow
of its being turned by hand either from the one side or the other of the steering wheel
or the turning of the screw spindle might be effected by a treadle.
This construction is shown at Figure 3-E is the metallic frame formed with
feet at its ends to admit of its being secured to the top of a forked standard L as
shown.
D is the screw spindle made to project through both ends of the metallic frame and
M are hand wheels affixed to both ends of the spindle.
.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In apparatus in which a friction band around a disc or wheel on the steering
wheel axle or the rudder head or disc or wheel turning with it is tightened up by right
and left handed screw threads on a spindle screwing into nuts pivotted to the ends of
the band so as to hold the rudder in any position into which it may be turned, making
one screw thread of larger diameter than the other so that the smaller one may be
passed freely through the nut of the larger one..
2. Making the band with a projection to enter a recess in a retaining block so that
the whole strain of restraining the band from turning may not come upon the screw
spindle.
3. The construction of the mechanism for tightening a friction band around a disc
or wheel on the steering wheel axle substantially as described with reference to Figure 3
of the drawings.