APPLIANCES TO BE USED FOR THE RIGGING OF BOATS OR SHIPS MASTS
Year: 1882

page_text: LETTERS PATENT to George Hughes, of Wolverhampton in the County of
Stafford wrought ironwork manufacturer for an Invention of APPLIANCES
TO BE USED FOR THE RIGGING OF BOATS OR SHIPS MASTS
33
PROVISIONAL SPECIFICATION left by the said George Hughes at the Office
of the Commissioners of Patents on the 21st September 1882.
GEORGE HUGHES [of] Wolverhampton, [in the County of] Staffordshire [wrought
ironwork manufacturer] APPLIANCES TO BE USED FOR THE RIGGING OF BOATS
OR SHIPS MASTS
A Rigging Screw having a box wormed with right and left hand screws; into
which two eyed bolts are wormed; the eye of one bolt containing a thimble into
which a stud is inserted to prevent collapse and having through the stud an
aperture to carry the bar, or rope, or chain of the stanchions; the eye of the other
bolt made oval or oblong to reave the eye of a shackle used to connect the
Rigging Screw with a chain plate of the boat or ship to which it is applied.
Also a Chain Plate having two lugs or palms to receive an eye direct from the
Rigging Screw and thus dispense with the connecting shackle

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said George Hughes in the Great Seal Patent Office on the 20th March
1883.
GEORGE HUGHES of Wolverhampton in the County of Stafford Wrought Ironwork
"APPLIANCES TO BE USED FOR THE RIGGING OF BOATS' OR SHIPS'
Manufacturer
MASTS
"
The object of my said invention is to provide improved appliances to be used for
the rigging of boats or ships masts.
I fit the lower ends of the standing rigging of ships and boats with a screw,
having a box with a right and left hand screw therein into which two eye bolts
are fitted; the eye of one bolt contains a sheave or thimble into which a stud is
inserted to prevent collapse, and having through the stud an aperture to carry the
bar, or rope, or chain of the stanchions, the eye of the other bolt is made oval or
oblong to reave the eye of a shackle used to connect the rigging screw with a chain
plate of the boat or ship to which it is applied.
And in order that my said Invention may be clearly understood reference is
hereby made to the accompanying drawings wherein similar letters of reference
indicate corresponding parts in both figures.
Fig 1 is a sectional view of one screw and Fig 2 is an elevation of two of such
screws-A is a box, having a right hand internal screw at one end and a left
hand internal screw at the other end The bar G passes through this box, as shewn
The lower bolt C is shewn with a left hand thread and has an oval or oblong
eye at its lower end to receive the shackle, the upper bolt B is shewn with a
right hand thread and has a round eye to receive a sheave or thimble for a rope or
other attachment-A recess is formed in B as shewn to receive the bar F (for a
sheer pole or pin rail) which is fixed with bolts as shewn, a pin being also shewn
therein in Fig: 2 To prevent the boxes from turning and getting loose from
vibration, after being fixed I pass a bar G through (or across) two or more of the
boxes, as shewn and thus fix or lock them.
From the foregoing description it will be understood that the tightening up of
the rigging is effected by simply turning the box A. whereby the screws B and C.
are forcibly drawn together, and that A. B and C are prevented from rotating .by
the nature of the arrangements shewn
Having thus particularly described the nature of my said Invention and the
manner in which the same is to be performed-I claim
1 The use and manufacture of appliances to the rigging of boats and ships with
right and left hand screws having an eye at each extremity, substantially as herein-
before described and shewn on the drawings.
2. The use and application to mast rigging screws of a groove or aperture to
receive a bar, sheer pole, or pin rail F for the purpose substantially as described
and shewn on the drawings.
3 The use and application of a bar passing through or across two or more boxes
for the purpose substantially as described and shewn on the drawings
In witness whereof I the said George Hughes have hereunto set my hand and
seal this nineteenth day of March in the year of our Lord One thousand
eight hundred and eighty three