Ships or Wagons, or for like or Analogous Uses.
Year: 1888

page_text: Date of Application, 11th Jan., 1888
· Specification Accepted, 17th Feb., 1888
Ships or Wagons, or for like or Analogous Uses.
I ALFRED THOMAS, of 60 London Square, Cardiff, in the county of Glamorgan,
stevedore and contractor, 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:-
The improved bucket in which this invention consists is provided at one side with a
pair of spring bolts which are carried in sockets hinged to the bucket.
When the bucket is suspended for filling to the chain or rope by which it is raised
and lowered, the handle lies at one side between the tongues of the spring bolts afore-
said, and the bucket is not free to revolve within the liandle, but when, after having
been filled, the bucket is drawn to the place of discharge and deposited on its bottom
and the tension of the chain or rope relaxed, the handle drops and a notch or shoulder
thereof is brought into contact with the tongues of the spring bolts which are thus
forced back into the sockets. To enable the handle to drop in this manner it is slotted,
and in the slot is the neck of the trunnion which is situated at that side of the
bucket.
If, now, the rope or chain to which the bucket is hooked be drawn up, the bucket
turns over and discharges its contents.
After discharge the bucket swings back again into its former position and the handle
becomes again locked between the spring bolts. The trunnions are placed sufficiently
low on the bucket to ensure its swinging freely when the handle is released and the
bucket raised.
When it is required to prevent the bucket from tipping automatically as above
described, a pawl hinged to the handle is operated to bear on the neck of the afore-
said trunnion and the descent of the handle is thereby obstructed.
Referring to the accompanying sheet of drawings, Figs. 1 and 2 thereon represent
different side views of my improved swing bucket. Fig. 2 is a part plan and part
horizontal section on the line xx Fig. 1. The bucketja is represented as suspended to
the chain of a crane or derrick. At one side of the bucket a are hinged the sockets b
containing the bolts which, projecting forward under the influence of spiral
springs acting behind them, prevent the bucket from turning on its trunnions fand g,

page_text: the handle d being between the said bolts as shown. The bolts 61 are prevented by
stops c working in the grooves c¹ from being forced out of the sockets 6 by the spiral
springs behind them.
The handle d furnished with a notch or shoulder e is slotted at d¹, as shown, and in
the slot is the neck of the trunnion f.
When the bucket is lowered and brought to rest at the place of discharge the
handle, by its own weight and assisted by the arrest of the momentum of the bucket,
drops at that side at which it is slotted and the spring bolts bare forced back by the
notch e which descends below them. The chain is now drawn up again but the handle
does not pass into its former position between the bolts as the sockets thereof are tilted
upwards on their hinges by contact of the front of the notch e with the underside of
the tongues of the bolts.
Consequently, the bucket turns over on its trunnions which are situated sufficiently
low to ensure this freely taking place.
i
Guard springs are provided to prevent the sockets from tilting too far back.
After discharge the bucket swings back into its former position and one of the spring
bolts having been forced back by the curved or inclined face of the notch e and again
shot forward by its spring, the handle is once more retained hetween the bolts and the
bucket is ready for refilling.
When it is desired to prevent the bucket from tipping automatically as above
described, the pawl pivotted at the side of the handle is operated so as to bring its
lower end over the neck f of the trunnion f and the handle is then provented from
descending as above described.
Having now particularly described and ascertained the nature of this
invention, and in what manner the same is to be performed, I declare that what
I claim:
1. A bucket such as a for use in loading and unloading ships or wagons, or for
like or analogous uses, the said bucket being designed to turn on trunnions and
discharge its contents when deposited at the place of discharge and to swing back
thereafter to the position for refilling, substantially as hereinbefore described.
2. A bucket such as a for use in loading and unloading ships or wagons, or for
like or analogous uses, with trunnions such as f and g, and provided with spring
bolts such as 6 working in sockets such as b hinged to the bucket, a handle such as d,
notched as ate and slotted to receive one of the trunnions, substantially as herein-
before described.
3. The use in a swing bucket, such as above described, of a pawl such as h, or the
equivalent thereof, for preventing descent of the handle over the trunnion f, when
required, as herein before described.
Dated this 10th day of January 1888
NICHOLAS WATTS,
Applicant's Agent.