IMPROVEMENTS IN SHACKLES
Year: 1878

page_text: LETTERS PATENT to Flint Ramsay, of Devon House, Manor Road, Forest
Hill, in the County of Kent, Gentleman, for the Invention of "IMPROVEMENTS
IN SHACKLES."
Sealed the 29th March 1878, and dated the 2nd February 1878.
PROVISIONAL SPECIFICATION left by the said Flint Ramsay at the Office
of the Commissioners of Patents on the 2nd February 1878.
FLINT RAMSAY, of Devon House, Manor Road, Forest Hill, in the County of Kent,
Gentleman. "IMPROVEMENTS IN SHACKLES."
In the Specification of a former Patent, No. 530, in the year 1872, was described
the constructing a shackle with a non-detachable locking bolt.
My improvements relate to such shackles, and have for their object not only to
improve the shackle but also to cheapen its manufacture.
A shackle with my improvements applied to it is shown in the Drawing
annexed.
In place of applying a spiral spring around the stem of the bolt, as described in
the above-mentioned Specification, to fix the bolt when locked I affix a spring 9 to
one of the arms of the shackle and cause the spring to bear against the end of the
bolt, this allows of the head of the bolt being brought closer up to the other arm
of the shackle, and renders the spring less liable to derangement.
The bolt I provide with a short stud c standing out from it, as described in the
Specification above mentioned, (to prevent the bolt being drawn out or detached
from the body of the shackle).
The arm of the shackle furthest away from the head of the bolt has a groove or
slot e cut in it radiating out from the hole through which the bolt itself passes so as
to allow the stud to pass and the end of the bolt to be moved through or drawn
[Price 6d1

page_text: back from the hole in this arm. On the outer side face of the end of the arm is also
a recess on the opposite side of the hole to the groove e for the stud c to lie in
when the shackle is closed and the bolt is to be locked and held.
In order to be able readily to form this recess f I form the end of the arm with a
boss projecting from its side so that a groove can readily be cut right across the face
of this boss. Instead also of the groove e being on the side of the hole furthest from
the end of the arm, as shown in the Specification before mentioned, I form it
between the hole and the extremity of the arm, as shewn by the Drawing; this
allows of the recess d in the inner face of the end of the other arm of the shackle
being also formed between the hole and the extremity of the arm, so that it can
readily be got at either in the first place to cut it out or to clear it if it has pre-
viously been shaped by casting, or if the shackle is to be galvanized to clear it after
the shackle has been galvanized. They may also, be electroed.
Shackles made in this manner are applicable for a great variety of uses, both on
shipboard and in other cases where shackles are commonly used.
The form of the shackle may be considerably varied.
jointed at x, or any other point, to allow it to open wider.
The shackle also might be
Shackles may be made of wrought or malleable cast iron, or other metal or
substance.
The above improvements are also applicable to shackles which have a spiral
spring around their locking bolt, as described in the Specification before men-
tioned.
In place also of employing a spiral or side spring g to retain the bolt in its
locked position the shackle arms might themselves, by the natural spring of the arins,
spring outwards and act as the retaining spring for the bolt.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Flint Ramsay, in the Great Seal Patent Office on the 2nd
August 1878.
FLINT RAMSAY, of Devon House, Manor Road, Forest Hill, in the County of Kent,
Gentleman. "IMPROVEMENTS IN SHACKLES."
In the Specification of a former Patent, No. 530, in the year 1872, was described
the constructing a shackle with a non-detachable locking bolt.
My improvements relate to such shackles, and have for their object not only to
improve the shackle but also to cheapen its manufacture.
The Drawings hereunto annexed show various forms of shackles with my improve-
ments applied to them.
One improvement consists in affixing a spring g to one of the arms of the shackle
to bear against the end of the bolt B and secure the bolt when locked; this allows
of the head of the bolt being brought closer up to the other arm of the shackle, and
renders the spring less liable to derangement.
Another improvement consists in forming the ends of the shackle arms with a boss
on their outer side, so that the recess f, in which the locking stud c of the bolt is to
lie when the bolt is locked, can be cut across the face of this boss.
Another improvement consists in forming the radial groove e (through which the
locking stud c of the bolt has to pass when the bolt is drawn back) between the
extremity of the arm and the hole through which the bolt passes; this allows the
recess d in the inner face of the end of the other arm of the shackle being also
formed between the hole and the extremity of the arm. The recess d' can thus
readily be got at either in the first place to cut it out or to clear it if it has pre-
viously been shaped by casting, or if the shackle is galvanized to clear it after it
has been galvanized.
"
It will also be seen that by forming the radial groove e in this position the stud
c at the time of withdrawing the bolt will be standing outwards, and will offer no
obstruction to the free withdrawal of the bolt in spite of any strain there may be
upon it; but the bolt can be withdrawn into the position shown by Figure 4,
leaving the space between the arms of the shackle entirely open.
The flat side spring g resting on the end of the bolt may be sunk so that the
surface of it may be flush with the iron of the arm of the shackle.
Shackles made in this manner are applicable for a great variety of uses, both on
shipboard and in other cases where shackles are used, the form also of the shackle
may be considerably varied, and the shackle arms may be jointed together instead
of their being formed together in one piece.
Figure 1 shows a side view; Figure 2 a section; and Figure 3 an edge view of a
shackle suitable for a sail hauk for jibs or stay sails where the bolt rope is less than
the stay.
A is the body of the shackle; B is the bolt passing through holes in the arms of
the shackle; g is a spring secured to one of the arms of the shackle and bearing.
against the end of the bolt; c is a stud carried by the bolt B when the bolt is
locked it lies in a recess f in the boss which is formed on the outer side of the end
of the shackle arm, as shown. When the bolt is to be unlocked the head b of the
bolt is pressed inwards until the stud c has left the recess f, a half turn is then
given to the bolt so as to bring the stud opposite to the groove e which is formed
through the arm and radiates from the hole through which the bolt passes, the bolt
can then be withdrawn into the position shown in Figure 4, and the stud will lie in
the recess & formed on the inner face of the other arm of the shackle.
Figure 5 shows a side view, and Figure 6 a section of a shackle similar to the one
shown at Figures 1, 2, 3, and 4, except that a coiled spring g is interposed between
the shackle and the head of the bolt B instead of employing a spring secured to the
shackle arm to bear against the end of the bolt. This coiled spring may also be
sunk out of view, the end resting on an enlargement of the neck of the bolt.

page_text: Figures 7 and 8 show two views of a sail hank suitable for jibs or stay sails
when the bolt rope is larger than the stay, and for a variety of other uses.
In this
case the arms of the shackle are jointed together at X. The same form of shackle
may also be made with a solid ring without joint opening to the stay.
Figure 9 shows a shackle formed so that it can be attached to a mast, boom, or
gaff hoop.
Figure 10 sbows a jack stay hank or shackle for blocks or chains.
Figure 11 shows a brail hank shackle.
Figure 12 shows a boom ring shackle.
! Figures 13 to 20 show various forms of shackle suitable for harness attachments
for coaches, carts, gun carriages, and such like, also for tarpaulings for railway or
other wagons, and for gates or doors, &c.
All the shackles shown in the Drawings have one or more of my improvements
applied to them.
The shackles may be made of wrought or malleable cast iron, or of steel or brass,
or other metal or substance, they may also be galvanized or electro-plated or other-
wise coated. I claim,-'
First. The construction of shackles, substantially as described and shown by
Figures 1 to 20 of the Drawings.
Second. Forming shackles that are made with non-detachable locking bolts, with
a spring attached to one of the arms of the shackle to bear against the end of the
bolt, for the purposes mentioned.
Third. Forming the shackle arms with bosses on their outer sides, for the purposes
mentioned.
Fourth. Forming the radial groove or slot e between the extremity of the shackle
arm and the hole through which the bolt passes, for the purposes mentioned.
Fifth. Forming the recess d between the hole and the extremity of the arm of
the shackle, for the purposes mentioned.
In witness whereof, I, the said Flint Ramsay, have hereunto set my hand
and seal, this Thirteenth day of July, in the year of our Lord One
thousand eight hundred and seventy-eight.
ייז
זיאנית מאוד זה
TUOWAT TATTTY
(L4.S.)