A Self-acting Tip Box for Discharging Solid or Liquid Material, for Cranes or the like.
Year: 1896

page_text: Date of Application, 20th Apr., 1906
Complete Specification Left. 2nd June. 1896-Accepted, 4th July, 1896
Complete Specification Left. 2nd June, 1896-Accepted, 4th July, 1896
PROVISIONAL SPECIFICATION.
A Self-acting Tip Box for Discharging Solid or Liquid Material, for
Cranes or the like.
I, JOHN HARWOOD SIMPSON, of 1 Hargwyne Street, Brixton, in the County
of Surrey, Mechanical Engineer, do hereby declare the nature of this invention to
be as follows:-
My invention has reference to improvements in tipping boxes or buckets used in
connection with cranes or the like.
With the form of bucket now generally in use, the bucket or box is tipped by
an attendant on the ground. With my invention, however, I make the bucket
self-tipping through a release by the craneman, obviating any action on the part
of a ground attendant.
In my invention the box or skip is intended for use by steam cranes for landing
and tipping slush or any other material from dredgers, or various other kinds of
work such as shipping coal, discharging vessels, and for lifting and discharging
water.
The hox can be made of any size according to the lifting power of the crane, and
the shape of the box or bucket can be either square, rectangular, or any shape
according to the conditions of working.
I provide on each side of the bucket or box two links, those respectively opposite
each other being connected by a beam or cross-bar and hooks and chain. The
centre of the beam or cross-bar connected by two wire ropes or chain which carry
the box and pass over the jib head on to the crane barrels. The links are fulcrumed
to the bucket below the centre. On the side of the beam or cross-bar connecting
the said links together is an angle lip or projection, such projection being normally
downwards.
In operation the box or bucket on being lowered to the position requisite for
tipping; the craneman loosens either of the ropes or chains according as he wants
the bucket to tip back or front. By the action of releasing the chain the box or
bucket tips by gravity. Whichever side the bucket is intended to tip; the beam
on that side falls, the projection on the beam or cross-bar, in the released
position, catching underneath the angle iron projection on the side of the bucket
and the extra weight forces the bucket down and assists in the tipping, and it
merely depends upon the amount of the weight put into the beam as to whether
the bucket is tipped completely over or only partly over.
The craneman by the action of one rope, either letting it
can tip the bucket either backward or forward as he wishes.
can be tipped in any position, either down on the ground
the jib of the crane will allow it to go.
out or taking it in,
The box or bucket
level or as high as
It is obvious that it is not material where I fix the links. They can either be
at opposite ends or fulcrumed to the outside of any of the four corners, the
main idea of my invention being that two pairs of links are fulcrumed opposite
each other on the box.
Where it is desirable that no projections should be made through the sides in

page_text: the interior of the box, the links for tipping can be fixed to the box by means
of axles or levers bolted to the outside.
Dated this 29th day of April 1896.
JOHN P. O'DONNELL, Fel. Chart. Inst. P.A.,
70 & 71 Palace Chambers, Westminster, S. W.,
Agent for the said Applicant.
COME HELE SPECIFICATION.
A Self-acting Tip Box for Discharging Solid or Liquid Material, for
Cranes or the like.
I, JOHN HARWOOD SIMPSON, of 1 Hargwyne Street, Brixton, in the County
of Surrey, Mechanical Engineer, 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 has reference to improvements in tipping boxes or buckets used
in connection with cranes.
With the form of bucket now generally in use the bucket or box is tipped by
an attendant on the ground. With my invention, however, I make the bucket
self-tipping through a release by the craneman, obviating any action on the part
of a ground attendant.
In my invention the box or skip is intended for use by steam cranes for landing
and tipping slush or any other material from dredgers, or various other kinds
of work such as shipping coal, discharging vessels, and for lifting and discharging
water.
The box can be made of any size according to the lifting power of the crane,
and the shape of the box or bucket can be either square, rectangular, or any shape
according to the conditions of working.
I provide on each side of the bucket or box two links, those respectively opposite
each other being connected by a beam or cross-bar and hooks and chain. The
centre of the beam or cross bar is connected by two wire ropes, or chains, which
carry the box and pass over the jib head on to the crane barrels. The links are
fulcrumed to the bucket below the centre. On the side of the beam or cross-bar
connecting the said links together is an angle lip or projection, such projection
being normally downwards.
In order that my invention may be better understood and more readily carried
into effect I will describe the drawing hereunto annexed.
Figure 1 shows a side elevation of a jib with the ropes or chains attached to
my improved form of bucket.
Figure 2 is a front view of my improved form of bucket.
In both Figures 1 and 2 the bucket is shown in the elevated or normal position.
Figure 3 is a view of the bucket tipped for the discharge of whatever may be
in it.
The same letters refer to the same parts in the several figures.
a is the jib of the crane, the rope or chain attached to one pair of links of
the bucket, the rope or chain attached to the other pair of links of the bucket;
d d' are one pair of links and e el are the other pair of links. f is the fulcrum
of the links d d below the centre of the bucket and f is the fulcrum of the
other pair of links e e¹ also below the centre of the bucket. The links are connected
by hooks or otherwise to beams g and h which in their turn are connected to the
ropes b and c. Lips or downward projections; on the beam g and k on the beam h
(both inwards) are provided.
The way in which my invention operates is as follows:-
When the box or bucket is required to be lowered to the requisite position for

page_text: tipping the craneman loosens either of the ropes 6 or c according as he wants the
box to tip back or front. Assuming he releases the rope or chain c the rope band
the links d form the support of the bucket or box which tilts, through the slackening
of the rope c, into the position shown in Figure 3 so that the downward lip or
projection & upon the beam catches on the augle iron or projection (Fig. 1) on
the bucket, the weight of the beam and chain catching on the projection tending
to further tilt the bucket for the more rapid and complete discharge...
Correspondingly, if the rope or chain 6 is slackened the bucket will be tilted
in the other direction and the downward lip or projection on the beam g will
catch on the angle iron m of the bucket, tending to further depress it in the other
direction.
It is obvious that it is not material where I fix the links. They can either be
at opposite ends or fulcrumed to the outside of any of the four corners, the main.
idea of my invention being that two pairs of links are fulcrumed opposite each
other on the box.
Where it is desirable that no projections should be made through the sides in
the interior of the box, the links for tipping can be fixed to the box by means of
axles or levers bolted to the outside.
I am aware that two ropes or chains have been used before to suspend a bucket
operating on one centre line of the bucket; I do not, therefore, per se, claim two.
ropes or chains, but,
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. A crane bucket for moving and discharging having two fulcrum pins below
the middle of said bucket on each side each opposite pair being suspended by a
separate rope or chain, substantially as described and in the manner set forth.
2. In a bucket suspended through two centre lines, a lip or projection on the
supporting beams so that the weight of such beams and chains may assist the
tilting of the bucket, substantially as described and illustrated in the accompanying
drawings.
3. A crane bucket suspended by separate ropes or chains through two centre-
lines, substantially as described.
Dated this 2nd day of June 1896.
JOHN P. O'DONNELL, Fel. Chart. Inst. P.A.,.
70 & 71 Palace Chambers, Westminster, S.W.,
Agent for the said Applicant.