Improvements 'in Propelling and Steering Apparatus for Boats, Ships, and the like.
Year: 1894

page_text: Date of Application, 22nd Oct., 1894.
Complete Specification Left, 22nd July, 1895-Accepted, 14th Sept.: 1895
PROVISIONAL SPECIFICATION.
Improvements 'in Propelling and Steering Apparatus for Boats,
Ships, and the like.
I THOMAS BRIDGES HEATHORN, of 10 Wilton Place, Knightsbridge, in the
County of Middlesex, Gentleman, do hereby declare the nature of this invention
to be as follows:-
This invention for Improvements in propelling and steering apparatus for boats
ships and the like relates to propellers and propeller actuating apparatus of the
class in which the vessel is propelled and steered and its motion retarded by the
action of a compound vibrating stern paddle or rudder comprising a primary
rudder frame oscillating about the rudder post axis and a rudder blade oscillating
with the rudder or frame and also about a secondary or independent pivotal axis in
the rudder frame, and has for its object certain improvements in apparatus for
which Patents No. 13443 of 1892 and No. 16773 of 1893 were granted to me....
A propeller constructed according to this invention comprises a rudder or
propeller blade mounted in suitable bearings in a rudder frame and provided with
a crank which oscillates with the propeller blade and which is so connected to the
rudder frame or driving and controlling mechanism, by means of springs, that on
the said propeller blade being displaced relatively to the rudder frame it.is
immediately returned to its central or normal position. The propeller blade and
crank are connected by bevel wheels, and other suitable connections, to a hand
lever by means of which the propeller blade may be caused to rotate through half
a revolution at pleasure and then fixed by means of suitable lugs or catches so as
to oscillate with the rudder frame until again removed by hand.
By turning the propeller blade about its secondary axis through half a revolution
the direction of motion of the vessel is reversed.
1.
When it is desired to employ the propeller blade as à rudder only it is locked in
its central or normal position relatively to the rudder frame by theans of a suitable
bolt or its equivalent.
Instead of the worm and pinion arrangement for operating the steering gear as
described in my Complete Specification No. 16773 of 1893 1 employ a disc provided
with a number of holes in which a pin on a hinged steering lever engages; or a
pair of bevel wheels may be employed to operate a spindle or drum on which a
steering rope or chain works.
Dated this 22nd day of October 1894.
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1 i.
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...: :
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.
COMPLETE SPECIFICATION.
11
Improvements in Propelling and Steering Apparatus for Boats,
Ships, and the like.
J
I, THOMAS BRIDGES HEATHORN, of 10 Wilton Place, Knightsbridge, in the
County of Middlesex, Gentleman, 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 for Improvements in propelling and steering apparatus for boats,
D
U...

page_text: १
ships and the like relates to propellers and propeller actuating apparatus of the
class in which the vessel is propelled and steered and its motion retarded by the
action of a compound vibrating stern paddle or rudder comprising a primary
rudder frame oscillating about the rudder post axis and a rudder blade oscillating
with the rudder or frame and also about a secondary or independent pivotal axis in
the rudder frame, and has for its object certain improvements in apparatus for
which Patents No. 13443 of 1892 and No. 16773 of 1893 were granted to me.
Referring to the accompanying two sheets of illustrative drawings:-
Fig. 1 represents a sectional elevation of a propeller fitted with apparatus for
reversing its position in order to retard or reverse the motion of the vessel.
and
A rudder frame a oscillates about suitable bearings and terminates in a hollow
pillar c having a chain wheel d and lugs e mounted on or formning a part with it.
Through the said pillar passes a spindle terminating upwards in a fork
having hinged to it a lever h which slides between the prongs of the said fork g
and which in its horizontal and normal position engages in a notch in one of the
said lugs by which means it and the spindle fare normally prevented from
turning independently of the pillar c and rudder frame a. The lower end of this
spindle passes through the frame a and is pivoted in a suitable arm or bracket b and
bas mounted on it a bevel pinion gearing with a corresponding bevel pinion j
secured to the sleeve forming a part of the framing m and rotating in the
frame a.
The oscillating rudder blade n is secured to a cranked axis o working in suitable
bearings in the frame m and terminating in a pivot p an army of the axis p being
free to oscillate independently of the frame m to a limited extent in a pocket r and
may be locked when the apparatus is used as a rudder only by the rods operated
through a suitable lever controlled by a hand levert (see Fig. 2) which normally
stands in a vertical position with its hooked part o lying horizontally and
· permitting through the connecting rope w, the locking rods to be pushed into the
locking position by the spring a. On turning the lever t into the horizontal
position as shewn by the dotted lines the rod s is withdrawn from the crank
leaving the rudder free to oscillate independently of the frame m.
The pin y.is. secured to the frame m and is elastically connected to the crank z
by rubber bands a¹ or other suitable elastic connections so that on the propeller
hladen being displaced relatively to the frame m it is immediately returned to its
rentral or normal position.
When it is desired to reverse the action of the propeller and consequently the
motion of the vessel the lever his elevated out of the notch in the lug e and
rotated through a semicircle and lowered into the corresponding notch in the
opposite lug as shewn in dotted lines, the rotation of the lever causing the rudder,
by means of the spindle fpinions ; and frame m, to also rotate through a
semicircle to the position indicated by dotted lines. Motion imparted to the
rudder when in this reversed position causes it to propel the vessel in a backward
direction.
The pinions may be formed with byperboloidal or other suitably shaped
teeth.
Figs. 3 and 4 represent an elevation and plan of an arrangement of steering
device which may be substituted for the worm and pinion arrangement described in
Specification No. 16773 of 1893.
Instead of the worm and pinion, a disc a¹ having a series of holes & is rigidly
mounted on the spindle c while loosely mounted on the said spindle is the eye
end d of a hinged lever et having a stud pin f1 secured to it, which, when the
lever is in a horizontal position as shown engages in one of the holes b¹ so that
the motion of the hand lever e imparts a rotary motion to the disc a' and
consequently operates the steering chaiu g'. By rotating the lever e¹ about its
hinge the stud f' can be removed from one hole of the disc a' and put into
engagement with any other to bring the lever e¹ into a position convenient for the
manipulator.
.!

page_text: In the modified arrangement of steering mechanism shown in Fig. 5, the chain g¹
Figs. 3 and 4 is dispensed with, the cord i being coiled round the spindle ; which is
operated by the bevil wheels 1, m and handwheel n all as clearly shown.
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. The arrangement and construction of rudder actuating and controlling
apparatus substantially as described with reference to Fig. 1 of the drawings.
2. The combination of hinged hand lever e' having stud f¹ with the perforated
disc a¹ mounted on the chain wheel spindle the whole substantially as described
with reference to Figs. 3 and 4 of the drawings.
3. The arrangement and combination of steering mechanism substantially as
described with reference to Fig. 5 of the drawings.
4. The combination of parts constituting my improvements in apparatus for
propelling; steering and retarding the motion of boats ships and other vessels and
the like, the whole arranged constructed and operating substantially as described in
the foregoing Specification and illustrated by the drawings hereunto annexed.
· Dated this 22nd day of July 1895.
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.