Improvements in Apparatus for Loading and Discharging Material.
Year: 1894

page_text: Date of Application, 16th June, 1894
Complete Specification Left, 18th Mar., 1895-Accepted, 4th May, 1895
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Loading and Discharging
Material.
We, SAMUEL THOMAS, Stanwell Road, Penarth, Collector of Dock Dues,
JOHN LLEWLLYN POWELL, 2 Dock Chambers, Penarth, Foreman CYRIL
TALWORTH BATCHELOR, Upper Cliff, Penarth, Civil Engineer do hereby
declare the nature of this invention to be as follows :-
This arrangement consists of a bucket or skip of metal or other suitable
material and constructed in such a manner that it may be attached to or used in
connection with existing or other appliances employed for loading and discharging
material from one position to another and consists substantially of the following
arrangement
A bucket of any convenient size divided into two portions to one of which the
handle is rigidly attached in such a manner that the second portion swings freely
on a pivot connecting the handle and the two portions of the bucket together,
forming when suspended and closed a complete bucket having a sloping bottom,
tending to break the fall of material whilst being filled and to facilitate the
emptying of the bucket.
The bucket may be attached to ordinary cranes, shoots, tips, or other appliances
by a chain and when full lowered and lifted in the usual way.
From the outer side of the second or swinging portion of the bucket a tripping
chain or rope is attached and passed from thence to any convenient position where
it may be attached or secured allowing just so much of the chain or rope to be
slack that when the bucket has descended to the required point it becomes taut
and that portion of the bucket which is free to swing is automatically opened
allowing the material to be deposited where required.
The bucket being then hoisted for a fresh load the tipping chain again becomes
slack and the swinging portion of the bucket automatically closes again.
Any safety catch may be provided but preferably arranged that the tripping
chain releases it as soon as it becomes taut and which by its own weight falls into
place when the bucket closes.
A triangular opening can also be provided on each side of the bucket into which
the mouth of any loading shoot might enter and produces a steadying action to
the suspended bucket whilst being filled.
On that end of the bucket next the shoot removable brackets may be attached
on each side and of such a width that the whole end of a shoot is taken in, acting
as a stay from lateral movement.
T15L 100
S. THOMAS.
JOHN L. POWELL.
CYRIL T. BATCHELOR.

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus for Loading and Discharging
Material.
We, SAMUEL THOMAS of Stanwell Road, Penarth, Collector of Dock. Dues,
JOHN LLEWLLYN POWELL, of No. 2 Dock Chambers, Penarth, Foreman, and
CYRIL TALWORTH BATCHELOR, of Upper Cliff, Penarth, Civil Engineer, all
in the County of Glamorgan, 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 :--
Our invention relates to improvements in apparatus for loading and discharging
material and the object of it is to prevent breakage of the material handled.
It is applicable to all types of apparatus for loading or discharging material in
which a skip suspended from a hauling or hauling and traversing chain is made
use of.
In carrying the invention into effect, we provide a skip made in two portions
or half skips, one pivotted upon the other near the top of it, as for instance, where
it hangs from the cross head, which pivotted half is maintained by gravity in its
carrying position as a half of the skip and is adapted to be swung up out of that
position thereby opening the skip along the bottom-by a pull on the bottom of
it which pull is given by a chain or line pulled on by the travel of the loaded skip
hauling on the said chain or line the outer end of which is made fast to a fixed
point and its length adjusted to such travel.
Referring to the accompanying figures which are to be taken as part of this
Specification and read therewith,
Figure 1 is a side elevation of a skip made according to our invention shewing
it suspended at the mouth of a shoot, and with the pivotted half held closed.
Figure 2 is a sectional side elevation corresponding with Figure 1.
Figure 3 is a side elevation of a skip made according to our invention hewing
it open along the bottom.
Figure 4 is a plan corresponding with Figures 1, 2 and 5.
Figure 5 is a front elevation corresponding with the three last mentioned
figures.
A is a shoot, such as loose material like coal, is shot down into a skip suspended
by a hauling and traversing chain B. Our improved skip consists of two half-
skips C and D. The former is treated in the particular construction chosen for
illustration as the fixed (ie., unpivotted) half-skip and is shaped accordingly
to correspond with the angle of the inclination of the shoot A and to be a
continuation of it as far as the bottom of the skip.
any
convenient
E is the usual cross head. The half-skip C is made fast to it in
way. D is the pivotted half-skip. The axis of the pivotted half-skip is in th
ends of straps f, depending from each end of the cross head E. This pivotted
half-skip is wider than the half-skip C and its weight is so distributed throughout
it, with reference to the position of its axis, that gravity alone suffices to make it,
when the skip is empty, drop down to, and embrace the then opposite edges (side
and bottom) of the half-skip C as illustrated in Figures 1, 2, 3 and 4. Further,
the said weight must be so distributed and the concavity of the half-skip in
question must be such that neither the weight nor the thrust of the material in the
skip shall be capable of opening it. And, therefore, it may be convenient and
even advisable to continue the arc of the said half-skip and the ends upwards, as
indicated by the dotted lines in Figure 1. Or, instead of making the said half-
skip concave as illustrated, it may be of the same shape as the unpivotted half-
skip.

page_text: G is the chain or line above referred to as provided for the purpose of opening
the loaded skip by a pull on the pivotted half of the skip. To enable the said
chain or line to give such pull at the proper moment, it is made fast by one end to
the bottom of the pivotted half-skip, as clearly illustrated in Figures 1 to 4 and
by the other to some convenient fixed point, the slack or length of the chain
between the bottom of the pivotted half-skip and the said fixed point being
adjusted to the distance the skip has to drop, in such a way that as the skip
approaches the end of its drop, the chain or line G is taut and must pull on the
pivotted half-skip. The commencement of this pull is timed so that by the time
the skip has reached the bottom of its drop the pivotted half-skip shall be
opened. This process of opening by a pull on the last mentioned half-skip is
indicated in Figure 3 in which the chain G is supposed to be taut, whereas it is
supposed to be slack in Figures 1, 2 and 5.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. The combination of unpivotted and pivotted half-skips together with the
chain or line attached to the latter for swinging it up away from the former for
the purpose of opening the skip along the bottom of it, as set forth.
2. The hereinbefore described combination of half-skips pivotted together, the
respective position of their commou axis and the shape of them both being
arranged to secure the results specified.
3. The combination of half-skips pivotted together, their common axis being so
positioned and the weight of the pivotted half-skip so distributed that it shall
automatically close up to the opposite one when the skip is empty, as set forth.
Dated this 18th day of March 1895.
PHILLIPS & LEIGH,
No. 22, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicants.