AN IMPROVED APPARATUS FOR DETACHING BOTH TACKLES SIMULTANEOUSLY FROM SHIPS' QUARTER OR OTHER BOATS WHEN BEING LOWERED
Year: 1872

page_text: LETTERS PATENT to Frederick Charles Bryan Robinson, Captain.
in the Royal Navy, of Bridgeman House, Teddington, S.W., for
the Invention of "AN IMPROVED APPARATUS FOR DETACHING BOTH TACKLES
SIMULTANEOUSLY FROM SHIPS' QUARTER OR OTHER BOATS WHEN BEING
LOWERED."
'
Sealed the 4th June, 1872, and dated the 4th April 1872.
PROVISIONAL SPECIFICATION left by the said Frederick Charles Bryan
Robinson at the Office of the Commissioners of Patents, with his
Petition, on the 4th April 1872.
I, FREDERICK CHARLES BRYAN ROBINSON, Captain in the Royal
Navy, of Bridgeman House, Teddington, S.W., do hereby declare the
nature of the said Invention for "AN IMPROVED APPARATUS FOR DETACHING
BOTH TACKLES SIMULTANEOUSLY FROM SHIPS' QUARTER OR OTHER BOATS WHEN BEING
LOWERED," to be as follows:-
The object of my Invention is to detach a boat from both tackles
simultaneously by means of disengaging tumblers.

page_text: Fig. I. is side view of a portion of boat's tackle in a di
umbler, which is closed and locked.
In Fig. I. A is lower tackle block;
.
do.
do. C is shoulder in strap of block for steadying bar;
D is eye in bar for life line to reeve through;
E is disengaging tumbler (closed) in two parts;
F is strap of block;
do.
do.
do.
do.
do.
do.
do.
do.
do.
G is tumbler bolts through tumbler frame;
His projections on locking bar
I is locking bar;
J is keel of boat;
N is tumbler frame bolted on to keel;
S is pin of lower tackle block;
Tis fall of boat's tackles.
•
Fig. 2 is side view of a portion of a boat's tackle with c
ready to be clasped by tumblers..
In Fig. 2 B is lower tackle block;
do.
do:
do.
do.
do.
do.
do.
C is shoulder in strap of block for steadying bar;
D is eye in bar for life line to reeve through;
E is disengaging tumbler (open) in two parts; ".
F is strap of block;
G is tumbler bolt through tumbler frame;
His projections on locking bar;
I is locking bar;
do. . J is keel of boat;
do... M is conical ball to be clasped by tumblers;
५
do. N is tumbler frame to be bolted to keel of boat;
do.
. do.
S is pin of lower tackle block;
Tis fall of boat's tackles.
Fig. 3 is a front view of one half of tumbler showing tum
and space in it for locking bar.
In Fig. 3 E is disengaging tumbler;
do.
do.
do.
do.
do.
G is tumbler bolt;
Ú, pin of tumbler bolt;
N, tumbler frame;
J, keel of boat;
Q, bolt to secure tumbler frame to keel.
:

page_text: '
I now proceed to show how my apparatus is worked and operation
of various parts:-The lower block of the ordinary tackles used for
hoisting and lowering boats is to be strapped with iron, which strap is
continued into a short bar from lower end of block, and terminates is. a
conical-shaped ball; in this bar close under block is an eye for passing
life line in hoisting boat up while belaying falls above or below block as
convenient; the strap forms a shoulder for steadying bars to rest against
(one from each side of boat). The conical-shaped ball of lower tackle
block is grasped and securely held by the disengaging tumblers in a
manner similar to that in which a leaden bullet is held in a bullet
mould. The tumbler, which is in two parts, is when shut closed all rounḍ
except a circular hole on top to receive bar of tackle block, the two
parts of the tumbler when unlocked fall apart of themselves forward
and aft, and the ball of lower block is perfectly free & detached from
tumbler. Each part of tumbler works on a bolt through tumbler
frame, which frame is securely bolted to keel of boat. The tumblers are
locked and unlocked by a locking bar extending fore and aft along kee!
of boat underneath tumblers and between tumbler frame. On top of this
bar are projections made to fit exactly under bottom of tumblers when
closed, which locks them. Each tackle has disengaging tumblers, but the
same locking bar acts for both. The tumblers are locked and unlocked
by a lever on locking bar; the bottom part of lever forms a cog wheel
working in cogs on top of locking bar, the wheel of lever is supported
by frame bolted to keel. The lever may for convenience be made to ship
Steadying bars are used which have an eye
bolt at one end fastened to boat's side; the other end grooved & fitted
& unship from wheel.

page_text: to rest on shoulder of lower block, to keep it in its place. The lower
block when disengaged rises out of boat, liberates the bars, and they
fall clear. A paul may be fitted to tumblers to be used if necessary
when preparing to hoist boat up to keep tumblers closed till locked by
locking bar, this paul to be removed when tumblers are locked. The
lever when forced to its full extent forward or aft should unlock the
tumblers, and both tackles are at once detached simultaneously..
SPECIFICATION in pursuance of the conditions of the Letters Patent,
"
filed by the said Frederick Charles Bryan Robinson in the Great
Seal Patent Office on the 11th September 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, FREDERICK
CHARLES BRYAN ROBINSON, Captain Royal Navy, of Bridgeman House,
Teddington, S.W., send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourth day of April, in the year
of our Lord One thousand eight hundred and seventy-two, in the
thirty-fifth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Frederick Charles Bryan
Robinson, Her special licence that I, the said Frederick Charles
Bryan Robinson, my executors, administrators, and assigns, or such
others as I, the. said Frederick Charles Bryan Robinson, 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 IMPROVED
APPARATUS FOR DETACHING BOTH TACKLES SIMULTANEOUSLY FROM SHIPS' QUARTER
OR OTHER BOATS WHEN BEING LOWERED," upon the condition (amongst
others) that I, the said Frederick Charles Bryan Robinson, 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.

page_text: in a bullet mould. The tumbler (which is in two parts) is when shut
closed all round except a circular hole at the top to receive the bar
of tackle block. The conical ball revolves easily in its socket in the
tumblers, and the lower tackle block thus becomes a swivel block, so
that all turns can be taken out of tackle without detaching it. The two
parts of the tumbler when unlocked fall apart of themselves forward and
aft, and the ball of lower tackle block is perfectly free and detached from
tumbler. Each part of tumbler works on a bolt through the tumbler
frame, which frame is securely bolted to keel of boat. The tumblers
are locked & unlocked by a locking bar extending fore & aft along
keel of boat underneath tumblers and between tumbler frames; on top
of this bar are projections made to fit exactly under the bottom of
tumblers when closed, which locks them; the same bar locks and
unlocks both sets of tumblers, and is worked by means of a cogged
wheel or segment & lever, which works in cogs on top of bar. The
cogged wheel or segment is supported by a frame bolted to keel of boat
where convenient; the lever may for convenience be made to ship and
unship. Two steadying bars are used for each tackle block, which have
an eye bolt at one end fastened to boat's side, the other end grooved
and fitted to rest on shoulder on bar of lower tackle block to keep it in'
its place. If required a paul may be fitted to tumblers, to be used
when preparing to hoist boat up to keep tumblers closed till locked
by locking bar, when it should be removed. It should be of metal and
fitted to clutch the tumblers and prevent their opening, as when hoisting
a boat in a sea way the jerks on the tackles might render the operation
of locking without a clutch difficult. In smooth water it is probable
this paul would not be necessary, as the tumblers can then be held
together by hand till locked. The lever when forced to its full extent,
either forward or aft, should unlock both sets of tumblers, and both
tackles are at once detached simultaneously.
In witness whereof, I, the said Frederick Charles Bryan Robinson,
have hereunto set my hand & seal, this Eleventh day of Sep-
tember, in the year of our Lord One thousand eight hundred
and seventy-two.