Improvements in Kibbals used in the Discharging of Ships, Excavations, or the like.
Year: 1892

page_text: Date of Application, 30th June, 1892
Complete Specification Left. 30th Mar., 1893-Accepted, 13th May, 1893
PROVISIONAL SPECIFICATION.
Improvements in Kibbals used in the Discharging of Ships,
Excavations, or the like.
I, HENRY TYSON, of Herbert Hill, Whitehaven, in the County of Cumberland,
Slate Merchant, do hereby declare the nature of this invention to be as follows:-
My invention relates to improvements in kibbals used in the discharging of ships,
excavations or the like, which can be emptied by the man on the steam crane,
instead of being turned upside down by another man in the truck as at present.
The kibbal is constructed of iron or steel and of any suitable shape with a hinged
bottom. To the bottom are attached various cranks or bars pivoted to the sides or
other parts of the invention, so that by a pull by a cord from the man on the crane
it, will release two catches when the weight of the material inside the kibbal presses
the bottom-downwards and a quadrant arrangement keeps it open until quite
empty. To avoid small pieces being caught between the bottom and sides, another
jerk from the cord releases a spring and the spring hinge lifts the bottom up and
latches again ready for another load. A spiral spring may be used for the hinge
which is concealed under a ledge or shoot at the bottom of the kibbal.
It will be understood that the foregoing is given by way of illustration and that
the shapes materials and parts may be varied in many ways within the scope of my
invention.
Dated this 30th day of June 1892.
J. P. BAYLY,
18, Fulham Place, W., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Kibbals used in the Discharging of Ships,
Excavations, or the like.
I, HENRY TYSON, of Herbert Hill, Whitehaven, in the County of Cumberland,
Slate Merchant, 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 :---
My invention relates to improvements in kibbals used in the discharging of ships,
excavations or the like which can be emptied by the man on the steam crane,
instead of being turned upside down by another man in the truck as at present.
The kibbal is constructed of iron or steel and of any suitable shape with a
hinged bottom. To the bottom are attached various cranks or bars pivoted to the
sides or other parts of the invention, so that by a pull by a cord from the man on
the crane it will release two catches when the weight of the material inside the
kibbal presses the bottom downwards and a quadrant arrangement keeps it open
until quite empty. To avoid small pieces being caught between the bottom and
sides, a spring hinge lifts the bottom up and latches again ready for another
load. A spiral spring may be used for the hinge which is concealed under a
ledge or shoot at the bottom of the kibbal.
With ordinary kibbals used for raising and transferring iron ore, coal or the
like, the kibbal is evenly balanced and swings on trunnions, supported by a suitable
bow rod to which the crane chain is connected, the kibbal being held in a vertical
position by means of a catch. To discharge the contents, an attendant raises the
catch and overturns the kibbal. This method necessitates the employment of two
men one at the crane and one at the kibbal. In my arrangement the discharge

page_text: of the kibbal is placed under the control of the crane man and thus one man only
is required.
And in order that my invention may be thoroughly understood, I now proceed
to describe the accompanying drawing thereof, reference being had to letters and
figures marked thereon.
Fig. 1, is a side elevation.
Fig. 2, is a front elevation.
The kibbal a is fitted with a hinged door band catches c, the door is held in
position by triggers d connected by means of a light chain e to a lever f, on the
end of which is a raised knob g or other suitable contrivance. The lever'f works
on a pin supported by the links to which is connected the main crane chain j.
A small weight & upheld by two light chains or ropes and having a hole in the
centre through which the main chain and links passes freely, is suspended at a
convenient distance above the knob g. The kibbal being full and. in a position
suitable for discharge the crane man lets the weight fall suddenly, which, striking
the knob g, raises by means of the chain e the triggers and releases the door b.
The load causes the door to fall into the position indicated by dotted lines in
Figs. 1, and 2, and the kibbal is discharged; a suitable spring n is fixed at the
bottom of the kibbal and protected by a shield p sufficient tension is put upon
the spring to cause the door to swing back into its normal position immediately
the kibbal is empty, where it is again secured by the triggers, catches may be fixed
if required to hold the door open these being so arranged that a second blow from
the weight on the knob g releases the door and permits it to resume its normal
position.
It will be understood that the foregoing is given by way of illustration, and, that
the shapes materials and parts, may be varied in many ways within. the scope of
my invention.
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:
tg,
1. In a kibbal, the combination of the kibbal a, hinged door b, catches c,
triggers d, light chains or ropes e, lever f, and weight g, with the links h, spring n,
shield P, and the weight k and chains j and 1, substantially as herein described and
according to the accompanying drawing.
2. In a kibbal, the combination of the weight & chains or ropes with the
weight and lever pivotted to the links h, substantially as herein described; and
according to the accompanying drawing.
3. In a kibbal; the combination of the chains e triggers d and catches-c with the
spring n and hinged door, substantially as herein described and according to the
accompanying drawing.
This 201
C
1 1000
J. P. BAYLY,
18, Fulham Place, W, Agent for the Applicant..