IMPROVEMENTS APPLICABLE TO STEERING WHEELS, CAPSTANS, WINDLASSES, AND OTHER LIKE MACHINERY EMPLOYED FOR RAISING AND LOWERING WEIGHTS
Year: 1873

page_text: PROVISIONAL SPECIFICATION left by Albert Jaynor at the Office
of the Commissioners of Patents, with his Petition, on the 6th
January 1873.
I, ALBERT JAYNOR, of Regent's Park, in the County of Middlesex, do
hereby declare the nature of the said Invention for "IMPROVEMENTS
APPLICABLE TO STEERING WHEELS, CAPSTANS, WINDLASSES, AND OTHER LIKE
MACHINERY EMPLOYED FOR RAISING AND LOWERING WEIGHTS," to be as
follows:-
The object of this Invention is to dispense with the use of pawls and
ratchets in the construction of capstans, windlasses, and other hoisting
machinery, and to substitute in lieu thereof an improved self-acting
mechanical arrangement for the same purpose as the pawl and ratchet,
but with this advantage that whereas the pawl and ratchet only comes
into action when the barrel of the capstan or windlass for example is
moved in one direction.
The improved mechanism above referred to acts equally well when.
the barrel is moved either forward or backward. And further, by
adapting the aforesaid improvements to a steering wheel for ships and
other navigable vessels, the wheel will always remain securely fixed in
any position in which he may be moved in the act of steering for altering
the position of the rudder to which the wheel is connected, and by these

page_text: means the operation of steering is rendered less laborious and not
hazardous to life and limb..
The improved mechanism above referred to when applied to a
steering wheel, consists of two cylinders or barrels, one of which is
fixed, and the other movable or capable of being revolved over the
fixed one..
For the purposes of this Invention. I fix. the innermost cylinder
aforesaid by one end to a standard or stauncheon fixed on the deck of a
ship, and the other end of this cylinder I form with teeth or cogs on its
inner periphery; I also form the outer cylinder with teeth or cogs on its
inner periphery, but which project beyond the teeth of the fixed cylinder.
Lengthwise of the fixed cylinder and at the centro thereof I place a
spindle, one end whereof rests in a bearing in the aforesaid standard, and
the other end of the said spindle on which the steering wheel is securely
fixed revolves in another standard.. Upon this spindle I fix a disc of
metal, I make the disc to fit easily in the inner cylinder, and eccentric
to the said disc I fix a pivot which carries a double pinion, the fore part
of the said pinion, the teeth of which are intended to take or gear into
the teeth of the aforesaid loose or revolving cylinder, is made larger in
diameter than the back part of the said pinion, so that these two parts
of the pinion respectively gear into the cogged parts of the two cylinders,
the effect of which is as follows:-Upon rotatory motion being imparted
to the steering wheel the aforesaid pinion with its disc will be moved
round, and by reason of the teeth on the back part of the pinion rolling
in the cogged part of the aforesaid fixed cylinder, each fixed tooth will
serve as a fulcrum and thus cause the fore part of the pinion to advance
by its cogs or teeth the loose cylinder or barrel, and move the steering
chain and rudder connected therewith as desired, at the same time
completely locking and securely holding the wheel in any position
without any effort of the helmsman, who can at any time leave the
whcel with perfect safety.
It will appear evident that the above arrangement may be easily
adapted to capstans, windlasses, and other machinery employed for
raising and lowering weights.