AN IMPROVED EYE OR RING BOLT
Year: 1858

page_text: of Glasgow, Civil Engineer and Patent Agent, for the Invention of "AN
IMPROVED EYE OR RING BOLT."-A communication from Mortimer M..
Camp, of Newhaven, U.S.A.
Sealed the 14th August 1858, and dated the 10th March 1858.
PROVISIONAL SPECIFICATION left by the said George Davies at the
Office of the Commissioners of Patents, with his Petition, on the
10th March 1858.
I, GEORGE DAVIES, of No. 1, Serle Street, Lincoln's Inn, in the County of
Middlesex, and No. 28, St. Enoch Square, in the City of Glasgow, Civil
Engineer and Patent Agent, do hereby declare the nature of the said Inven-
tion for "AN IMPROVED EYE OR RING BOLT," (a communication from Mortimer
M. Camp, of Newhaven, U.S.A.,) to be as follows:-
The Invention consists principally in so constructing an eye or ring bolt
that a hook, line, or other fastening may be released from the bolt with greater
facility and in less time than from those of the ordinary construction. The
lower end of the body of the bolt is formed into a shank, and has a screw
thread formed upon it as usual. The head of the bolt is formed of two jaws.
and a tongue. The tongue works at one end upon a pin in one of the jaws,
and the other end thereof is formed into a tenon to fit the mortice in a hold-
fast. This holdfast is forked at its lower end to work upon a pin in the body

page_text: of the bolt, and is morticed at its upper end to fit upon the tenoned end of
the tongue. There are a pair of knuckle jointed levers (the lower end being
jointed to the body of the bolt, and the upper end to the upper part of the
holdfast) by the closing in of which the holdfast is moved over and upon the
tenoned end of the tongue to retain the latter securely in its position, and by
the opening of which the holdfast is withdrawn so as to allow the tongue to be
thrown up, and the line or other fastening enclosed within the eye to be
released.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said George Davies in the Great Seal Patent Office on the
10th September 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
DAVIES, of No. 1, Serle Street, Lincoln's Inn, in the County of Middlesex,
and No. 28, St. Enoch Square, in the City of Glasgow, Civil Engineer and
Patent Agent, send greeting..
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Tenth day of March, in the year of our Lord
One thousand eight hundred and fifty-eight, in the twenty-first year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said George Davies, Her special licence that I, the said George Davies,
my executors, administrators, and assigns, or such others as I, the said
George Davies, my executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for "AN IM-
PROVED EYE OR RING BOLT," being a communication from Mortimer M. Camp,
of Newhaven, U.S.A., upon the condition (amongst others) that I, the said
George Davies, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what manner
the same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately after the
date of the said Letters Patent.
NOW KNOW YE, that I, the said George Davies, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-

page_text: formed, to be particularly described and ascertained in and by the following
statement in writing and on reference to the accompanying Drawings, that
is to say:
This Invention consists principally in so constructing an eye or ring bolt
that a hook, line, or other fastening may be released from the bolt with greater
facility and in less time than from those of the ordinary construction. Tho
lower end of the body of the bolt is formed into a shank, and has a screw
thread cut upon it as usual. The head of the bolt is formed of two jaws and
a tongue. The tongue works at one end upon a pin in one of the jaws, and
the other end thereof is formed into a tenon to fit the mortice in a holdfast.
This holdfast is forked at its lower end to work upon a pin in the body of the
bolt, and is morticed at its upper end to fit upon the tenoned end of the tongue."
There are a pair of knuckle-jointed levers (the lower end being jointed to the
body of the bolt, and the upper end to the upper part of the holdfast,) by the
closing in of which the holdfast is moved over and upon the tenoned end of
the tongue to retain the latter securely in its position, and by the opening of
which the holdfast is withdrawn so as to allow the tongue to be thrown up, and
the line or other fastening enclosed within the eye to be released.
In the annexed Drawing, Figure 1 is a perspective view of the eye bolt, as
it appears when closed together, and Figure 2 is a similar view of the same
when opened.
A is the body of the bolt, constructed of cast or wrought iron, or such other
material as may be best suited to the size of the bolt, and the service to which
it is to be applied. It is preferred to make the smaller ones of brass or alloy,
and the larger ones of cast or wrought iron. The lower end of the body is
formed into the shank B, which has a screw thread cut upon it, by which it
may be screwed into a dock log or other similar position, or be fastened to
the deck or other part of a boat or vessel by a nut being screwed upon it.
C is a tongue working at one end between the jaws at the upper end of one
side of the body A upon a pin placed through it and through the jaws, and
having its upper end formed into a tenon to fit the mortice in the holdfast D.
The tongue C, when thrown down, completes the figure of the eye of the bolt,
as is shown in Figure 1. The holdfast D is forked at its lower end to work
in a recess in the body of the bolt upon a pin, and is morticed at its upper end
to fit
upon the tenoned end of the tongue C. E, E¹, are a pair of knuckle
jointed levers, by the closing in of which the holdfast is moved over and upon
the tenoned end of the tongue C to retain the tongue securely in position, and
by the opening of which the holdfast is withdrawn to allow the tongue to be
thrown up (as in Figure 2)-and the line or other fastening released. This

page_text: improvement is particularly valuable when applied to the boats of ships and
other vessels, which frequently require to be lowered from the vessel to the
water during the running of a heavy sea, as by its use the "fall hooks" can
be disengaged instantaneously and with perfect safety by simply opening the
jointed levers, whilst the same operation with the ordinary eye bolts is attended
with great danger, as one "fall hook" may be detached while the boat is
suspended at one end by the other, subjecting the boat to the liability of being
"swamped" and its occupants thrown into the water. It is also valuable
when placed upon docks or upon the decks of vessels to hold and release lines
and other fastenings.
Having now described the nature and object of the said Invention for "An
Improved Eye or Ring Bolt," together with the manner of carrying the same
into practical effect, I would remark in conclusion that what I claim as the
Invention communicated to me is, the combination of the body A and tongue C
with the holdfast D and levers E, E, constructed, arranged, and operated sub-
stantially as and for the purposes herein set forth.
In witness whereof, I, the said George Davies, have hereunto set my
hand and seal, this Tenth day of September, in the year of our Lord
One thousand eight hundred and fifty-eight.
GEORGE DAVIES. (L.S.)