provements in and connected with Tipping or Dumping Buckets or Vehicles for Loading and Unloading.
Year: 1896

page_text: Date of Application, 2nd Mar., 1896
Complete Specification Left, 2nd Dec.. 1896 -Accepted, 2nd Mar.. 1997
PROVISIONAL SPECIFICATION
Improvements in and connected with Tipping or Dumping Buckets
or Vehicles for Loading and Unloading.
1, WILLIAM THOMAS ANDREWS of Malvern, Queen's Road Leytonstone in
the County of Essex Engineer do hereby declare the nature of this invention to
be as follows:-
My invention relates to improvements in and connected with dumping buckets
tanks or other loading and unloading vehicles in which the load may be discharged
at any desired moment and preferably by the crane man without moving from his
position where he controls the movements of the crane or hauling apparatus.
As applied to a tipping bucket of simple construction I provide a rope or chain
in addition to the hoisting chain and this aforesaid rope or chain is led over guide
pulleys and provided with a counterweight at one end, while its other end is
connected to the bottom of the bucket or tank or to a tipping device thereon in
such manner that when the hoisting chain is allowed for instance to descend and
the other rope is checked by a brake or otherwise the result obtained is that the
bucket or tank is tipped up or tipped so that the contents are discharged. As soon
as the check or brake is released the bucket is free to assume or to be made to
assume its normal position.
I construct according to one modification the bucket or tank with a movable
bottom and normally the whole bucket is suspended from the bottom while the
sides or upper part in most constructions rest on said bottom. I provide the
bottom with a central post or suspension bar which projects some distance above
the top of the sides or upper part of the bucket and this central post is guided in
a guide or the like on the upper part of the bucket so as to ensure that the latter
shall take its proper position concentrically with regard to the bottom. The upper
part of the post is provided with an eye or loop into which the hook of the hoisting
chain can take. When the bucket is suspended it follows therefore that it is hung from
the bottom and the sides or upper part rest or rests on the said bottom. The load
is discharged by causing the bottom of the bucket to descend while the upper part
remains stationary. In order to effect the stoppage of the upper part during the
descension of the lower part attach by a hook or otherwise a rope or chain
thereto and lead this rope over sheaves or jockey pulleys and attach a counter
weight to the other end thereof the object being merely to keep the aforesaid rope
taut. It is evident that the weight or effect of the counterweight is to be less than
that of the upper part of the bucket as otherwise the result would be that the
bucket would be constantly in the dumping or discharging position. The said rope
which may suitably be called the dumping rope is guided near to or on the hook of
the hoisting chain so that both are always close together and thus both are within
reach of the operator when one is. The dumping chain is acted upon by a brake
which may conveniently by any suitable device be under the control of the
craneman's foot and when the latter applies pressure to the brake the dumping rope
is checked or stopped thus also stopping the descent of the upper part of the tank or
bucket while the hoisting chain continues to descend and with it the bottom of the
tank or bucket. It follows then that the load is discharged. When the hook on
the hoisting chain descends to its lowest position while dumping it is locked by the

page_text: hook on the dumping chain or by the bail on the tank or by both thus affording
additional security. The crane-inan thereupon releases the brake and the weight
of the upper part of hucket causes it to descend until it resumes its normal position
on the bottom ready for another lond.
The bottom is preferably made cone or bell-shaped to ensure a complete dis-
charge, the space underneath the bottom may be utilized by having travelling
wheels thereunder of a larger diameter than is possible with flat bottomed tanks
height for height. For the purposes of attaching test weights for weighing
purposes or the like the suspension bar may be extended below the bottom and be
provided with a hook on which to hang a weight or weights.
According to another modification I may cause the upper part of the tank or
bucket to ascend while the lower part descends thus saving time in discharging and
this I obtain by fixing to the hoisting hook a pivot on which are mounted two
links the outer ends of which are connected to the damping rope by a bridle.
There are further two other similar links pivotted together below and their other
ends are pivotted to the ends of the two links first referred to and where the bridle
is mounted. Connected to the pivot connecting the two lower links is a hook or
stud which is adapted to hook under a bail or some other part on the upper part
of the bucket or tank. If now the dumping rope be checked or stopped the
bridle is likewise checked or remains stationary while the lower part of the bucket
continues to descend, but the links in being compressed together by reason of the
pivot on the hook descending also causes the stul joining the lower set of links to
rise and consequently as it rises it also carries with it the upper part of the tank
or bucket.
Da T
JENSEN & SON,
77 Chancery Lane, London, W.C., Patent Agents.
Improvements in and connected with Tipping or Dumping Buckets
or Vehicles for Loading and Unloading.
I WILLIAM THOMAS ANDREWS of "Malvern," Queen's Rond, Leytonstoue in
the County of Essex, 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. :--
1 make dumping buckets tanks or other loading and unloading vehicles in which
the load may be discharged at any desired moment, and preferably by the crane
man from the position in which he controls the movements of the crane or hauling
Apparatus.
As applied to a tipping bucket of simple construction I provide a rope or chain
in addition to the hoisting chain and this aforesaid rope or chain is led over guide
pulleys and provided with a counterweight at one end while its other end is
connected to the side of the bucket or tank or to a tipping device thereon in such
manner that when the hoisting chain is allowed for instance to descend and the
other rope is checked by a brake the bucket or tank is tipped up or tipped so that
the load is discharged. As soon as the brake is release the bucket is free to
assume, or to be made to assume its normal position.
According to a simple modification I make the bucket or tank with a movable
bottom and normally the whole bucket is suspended from the bottom while the sides
or upper part in most constructions rest on the said bottom.

page_text: I provide the bottom with a central post or suspension bar which projects some
distance above the top of the sides or upper part of the bucket, and this central
post is guided in a guide or the like or the upper part of the bucket so as to
ensure that the latter shall take its proper position concentrically with regard to
the bottom. The upper part of the suspension bar is provided with an eye or loop.
into which the hook of the hoisting chain can take. When the bucket is suspended
it follows therefore that it is hung from the bottom and the sides or upper part rest
or rests on the said bottom. The load is discharged by causing the bottom of the
bucket to descend while the upper part remains stationary which is effected in the
following manner:-1 attach by a hook or otherwise a rape or chain thereto and
lead it over sheaves or jockey pulleys attaching a counterweight to the other'cad.
thereof, the object being to keep the aforesaid rope taut-care being taken to keep
the weight of the counterweight less than that of the upper part or sides of the
bucket to prevent the bucket assuming its discharging position. The said rope
which may suitably be called the dumping rope is guided near to or on to the
book of the hoisting chain so that both are always close together and thus both
being within reach of the operator when one is. The dumping chain or rope is acted
upon by a brake which may conveniently by any suitable device be under the
control of the craneman's foot, the latter applying pressure to the brake, stops or
checks the dumping rope, stopping also the descent of the upper part or sides of
the bucket or tank while the hoisting chain continues to descend and with it the-
bottom of the bucket or tank. It fellows then that the load is discharged. When
the hook on the hoisting chain descends to its lowest position while discharging it
is locked by the hook on the dumping chain or by the bail on the bucket or by
both thus affording additional security. The craneman thereupon raises the
hoisting hook and releases the brake causing the bucket to assume its normal
position.
The bottom of bucket is preferably made cone or bell-shaped to ensure a
complete discharge, the space underneath the bottom may be utilized by having
travelling wheels thereunder of a larger diameter than is possible with flat
bottom buckets height for height. For the purposes of attaching test weights
for weighing purposes or the like the suspension bar may be extended below the
bottom and be provided with a hook on which to hang a weight or weights.
According to another or compound modification may cause the upper part of
the bucket or tank to ascend while the lower part descends, thus saving time in
discharging, and this I obtain by fixing to the hoisting hook a pivot on which are
mounted two links the outer ends of which are connected to the dumping rope by
a bridle. There are further two other similar links pivotted together below and
their other ends are pivotted to the ends of the two links first referred to aud
where the bridle is mounted. Connected to the pivot connecting the two lower
links is a hook or stud which is adapted to hook under a bail or some other part
on the upper part of the bucket or tank. If now the dumping rope be checked or
stopped, the bridle is checked or remains stationary while the lower part of the
bucket continues to descend, but the links in being compressed together by reason
of the pivot on the hook descending also causes the stud joining the lower set of
links to rise and consequently as it rises it also carries with it the upper part or
sides of bucket or tank.
Fig. 1. of the drawings annexed is a side elevation of the bucket and brake
apparatus for tipping or dumping showing bottom of bucket and brake gear in
normal position.
Fig. 2. is the saine view showing the bottom of bucket and brake gear in
dumping position.
Fig. 3. is a side elevation and Fig. 4. a front elevation of simple arrangement of
hoisting and tipping hooks on a larger scale, and
Fig. 5. is a front elevation of compound arrangement of hoisting and tipping
books.
The sides of bucket A; is formed with a coned bottom B. with large sized.

page_text: travelling wheels attached, which is suspended by a rod C; the eye or loop of
which is free to work in guides D. fitted on top of sides of bucket.
The hoisting hook E is fitted with a stud or piu F to form a guide for the
tipping hook H.
The simple tipping hook H being made with a loop J of such a length as to
prevent the hoisting and tipping hooks to be closer together than the width of the
guide bars D.
The compound tipping hook Fig. 5. consists of a set of four links fitted to the
stud or pin on back of hoisting hook, the lower links being connected by the
tipping hook K. The centres of links are connected to pins sliding in slots M in
the bridle bar N, so that when the dumping rope R is checked the hoisting hook
descends with bottom of bucket while the tipping hook ascends with the sides of
bucket.
The dumping rope R is guided over the pulleys P those on the cranepost S
being multiplied sufficiently to take up the slack of the dumping rope R. the upper
set being fixed, while the lower set are movable and so weighted as to more than
balance the weight of dumping hook and the maximum amount of dumping rope
required for the total lift.
A brake chain or rope T is attached to the lower set, and passes between a brake
block U, attached to the cranepost S. By pressing the lever X downwards the
circular ring Y is raised which forces the brake lever Z upwards, thereby braking
the chain or rope T.
The dumping rope R may be made in different lengths and sizes of rope or chain
so that the balance of weight will always tell on the brake end, or it may be made
by a single rope or chain lowering into a pit or down a suitable incline towards
the brake end.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed declare that what
claim is
1. The combination of appliances as herein before described and illustrated by
the drawings for loading and unloading.
2. The combination of a brake applied to a dumping rope or chain in the manner
described.
3. The combination of dumping and hoisting hooks, bringing both hooks close
together under the control of the operator as described.
4. The combination of ropes or chains that constitute the counterweight
attached to dumping rope as described.
5. The combination of large sized wheels under the bottom of buckets as
described.
6. The combination of levers attached to hoisting and dumping rope or chain
causing the side of bucket to rise while the bottom descends as described.
Dated this 1st day of December 1896.
WILLIAM THOMAS ANDREWS.