Improvements in Shackles.
Year: 1890

page_text: Date of Application, 6th Jan., 1890
Complete Specification Left, 3rd Oct., 1890-Accepted, 22nd Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements in Shackles.
1, RICHARD MATTHEWS RUCK of Roland Houses, South Kensington in the
County of Middlesex, Major, R.E. do hereby declare the nature of this invention to
be as follows:-
In the Specification of a former Patent granted to me No. 365386 I described a
shackle having a bolt with a spring retaining piece of india rubber inserted together
into a slot in the body of the hook or shackle such bolt being pressed forward by the
india rubber and engaging with the moveable part of the hook or shackle but
nevertheless admitting of being drawn back by its ends projecting from the slot.
My present invention relates to shackles of this sort. For the moveable part I
employ a pin which passes through holes at the ends of the arms of the U shaped
body. The holes are circular with a projecting radial slot or key way. The pin is
cylindrical and of the same size as the holes. On one end there is a key or projection
which in one position fits the slots and allows the pin to be drawn back and on the
other end there is a disc which prevents the pin being drawn through the hole in the
other direction.
A spring bolt such as is described in the above mentioned Specification is
contained in a slot in one of the arms of the body and its end enters a hole in
the pin.
When the shackle is closed the pin cannot be withdrawn until the projection
on it is turned so as to coincide with the slot and this cannot be done till the bolt
is withdrawn.
Dated this 4th day of January 1890.
R. M. RUCK,
Major, R.E.
Improvements in Shackles.
I, RICHARD MATTHEWS RUCK of 5 Roland Houses, South Kensington in the
County of Middlesex, Major R.E. 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 :-
In the Specification of a former Patent granted to me No. 365386 I described a
shackle having a bolt with a spring retaining piece of india rubber inserted together
into a slot in the body of the hook or shackle such bolt being pressed forward by the
india rubber and engaging with the moveable part of the hook or shackle but
nevertheless admitting of being drawn back by its ends projecting from the slot.
My present invention relates to shackles of this sort. For the moveable part I
employ a pin which passes through holes at the ends of the arms of the U shaped
body. The holes are circular with a projecting radial slot or key way. The pin is
cylindrical and of the same size as the holes. On one end there is a key or projection
which in one position fits the slots and allows the pin to be drawn back and on the
other end there is a disc which prevents the pin being drawn through the hole in the
other direction.
A spring bolt such as is described in the above mentioned Specification is
contained in a slot in one of the arms of the body and its end enters a hole in
the in

page_text: When the shackle is closed the pin cannot be withdrawn until the projection
on it is turned so as to coincide with the slot and this cannot be done till the bolt is
withdrawn.
DESCRIPTION OF DRAWINGS.
Figure 1 is an elevation partly in section (on the line 1. 1 Figure 2) of the shackle
with the spring bolt removed.
Figure 2 is a section (on the line 2. 2 Figure 1) of the arm which carries the bolt.
Figure 3 is a longitudinal section of the pin.
Figure 4 is a transverse section (on the line 3. 3. Figure 3) of the pin.
Figure 5 is a longitudinal section of the spring bolt.
Figure 6 is a transverse section of the spring bolt.
A A is the body of the shackle and B is the pin which passes through the holes CC
at the ends of the arms.
The pin B has projecting from it a key D which fits into the key ways E shown in
Figures 1 and 2.
This key D prevents the pin being withdrawn from the shackle unless the key
coincides with the key way; the pin B is also prevented from being withdrawn in
the other direction by the head F of larger radius than the holes CC.
The pin B is locked in position by the bolt G whose nose enters one or other of
the holes or recesses H H of the pin. As shown in Figure 4 these holes are of
different forms. When the bolt G is in H the pin B can neither be turned nor with-
drawn whilst when it is in H¹ although the pin B cannot be withdrawn it can be
turned and the key brought to coincide with the key way ready for withdrawal.
The bolt G is embedded in india rubber J as shown in Figures 5 and 6 which forms a
spring forcing the bolt outwards.
The india rubber J and bolt G fit into the slot K in the arm A. When it is
desired to open the shackle the india rubber spring is pulled back with the finger and
thumb and thus the nose of the bolt G is withdrawn from the hole H in the pin B so
that the latter can be turned and withdrawn.
In some cases I enlarge the entrance to the slot K which facilitates the insertion
of the bolt.
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 combination with a shackle having two arms of a pin which fits holes at the
ends of the arms through which it passes and is held in position by a spring bolt
placed in a slot or recess in one of the arms the projecting nose of the bolt entering
a hole or recess in the pin.
2. The combination with a shackle having two arms of a pin which fits holes at the
ends of the arms through which it passes and is held in position by a spring bolt
placed in a slot or recess in one of the arms the projecting nose of the bolt entering
a hole or recess in the pin such pin being provided with a head at one end and a pro-
jection or key at the other end which can pass through radial slots in the arms and
allow the pin to be withdrawn.
3. The combination with a shackle having two arms of a pin which fits holes at the
ends of the arms through which it passes and is held in position by a spring bolt
placed in a slot or recess in one of the arms the projecting nose of the bolt entering
a hole or recess in the pin such pin being provided with a head at one end and a
projection or key at the other end which can pass through radial slots in the arms and
allow the pin to be withdrawn and with two holes or recesses one of which receives
the end of the bolt in such manner that the pin can neither be turned or withdrawn
whilst the other allows the pin to be turned but prevents it from being withdrawn.
4. The combination with a shackle having two arms of a pin which fits holes at the
ends of the arms through which it passes and is held in position by a spring bolt
placed in a slot or recess in one of the arms the projecting nose of the bolt entering

page_text: a hole or recess in the pin such spring bolt consisting of a bolt proper embedded in a
block of indiarubber or like compound which surrounds the base of the nose of the
bolt which projects through a hole in it.
5. The combination with a shackle having two arms of a pin which fits holes at the
ends of the arms through which it passes and is held in position by a spring bolt
placed in a slot or recess in one of the arms the projecting nose of the bolt entering
a hole or recess in the pin such pin being provided with a head at one end and a
projection or key at the other end which can pass through radial slots in the arms and
allow the pin to be withdrawn and with two holes or recesses one of which receives
the end of the bolt in such manner that the pin can neither be turned or withdrawn
whilst the other allows the pin to be turned but prevents it from being withdrawn and
such spring bolt consisting of a bolt proper embedded in a block of indiarubber or
like compound which surrounds the base of the nose of the bolt which projects through
a hole in it.
6. Shackles substantially as described.