IMPROVEMENTS IN ARRANGEMENT, AND CONSTRUCTION OF FOUNDRY LADLES WITH AUTOMATIC ACTION
Year: 1884

page_text: JOHN BURROWS 27 Bath Street New Swindon Wilts, Iron and Brass Founder
(Foreman), do hereby declare the nature of my invention for IMPROVEMENTS IN
ARRANGEMENT, AND CONSTRUCTION OF FOUNDRY LADLES WITH AUTOMATIC ACTION,
to be as follows:-
By my invention I construct a ladle of suitable shape carried by two trunnions,
which are supported on two, or, more cylinders moving vertically on fixed pistons,
the upper ends of the cylinders having formed thereon suitable bearings which
permit of a free rotary motion of the vessel, or ladle, these pistons are rigidly
secured to the bed of the carriage. I interpose between the upper end of each
cylinder, & the piston, a spiral spring, which springs sustain the load, and transmit
it to the pistons so that, when the load is increased, the ladle is lowered by the
compression, or raised by the extension of the springs when the load is removed.
The base to which the pistons are secured is mounted on wheels, so that the whole
apparatus can be moved freely from place to place as required.
The improvement I claim is, that in the above described arrangement the ladle is
automatically raised by the extension of the springs as the load decreases, and when
pouring to compensate for the rotary and downward motion of the mouth of the
vessel by the consequent raising of the entire ladle. By this arrangement the
operation of pouring is reduced, less costly & labourious, more certain, and
expeditious.

page_text: I JOHN BURROWS, of 27 Bath St New Swindon in the County of Wilts, iron
& brass founder (foreman), do hereby declare the nature of the said invention for
IMPROVEMENTS IN ARRANGEMENT, & CONSTRUCTION, OF FOUNDRY LADLES WITH
AUTOMATIC ACTION, and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
By my invention I construct a ladle of suitable shape carried by two trunnions,
which are supported by two, or more cylinders which have a vertical motion on
fixed pistons. The upper ends of the cylinders have formed thereon suitable
bearings which permit of a free, rotary motion of the ladle. These pistons are
rigidly secured to the base of the carriage.
I interpose between the upper end of each cylinder & the piston a helical, or,
annular spring or springs which sustain the load, & transmit it through the pistons
.to the supports: so that when the load is increased the ladle is automatically
lowered by the compression of the springs, & when decreased, or removed, the ladle
rises by their extension.
The base to which the pistons are secured, is mounted on wheels, so that the
whole apparatus can be freely moved from place to place as required.
The attachment of the cranked axel for the wheels to the base is arranged so
that the axel can be removed in position, by removing the bolts, which secure it,
'and, when this is done, the range of lift of the Ladle is raised through a distance"
'equal to the length of the crank of the axle, which can be removed as required;
thereby providing further means of adjustment for height in pouring, in addition to
that obtained by the automatic action of the springs.
In cases where the Ladle is required for use in Foundrys having soft, sand, floors
I attach to each wheel-a suitable tyre formed of two semi-circle pieces which have
formed on their inner surface a projection containing a recess made to fit the
periphery of the wheel. The tyre is secured in position by suitable lugs and bolts.
The operation of pouring is rendered much more certain and expeditious, with less
waste of metal and a great saving in labour as compared with the usual method
(that of carrying) together with safety in the hands of unskilled labour.
J.
By the use of this ladle, the operation of pouring is rendered more certain &
expeditious, & it is safe in the hands of, unskilled workman, as well as being
effective in reducing the waste of metal.
The above invention relates to improvements in arrangement, & construction of
foundry ladles with automatic action, wherein by the action of suitable springs
the ladle is raised automatically as the load decreases, thereby compensating for
the rotary, & downward motion of the lip, or mouth of the ladle when pouring.
Fig 1 is an end elevation of the ladle.
Fig II. is a part sectional transverse elevation through the Cylinders B B.
containing the springs C C & pistons D D.
Fig III is a side elevation shewing the disengaging gear,
Fig IV. is a plan.
In the drawings like letters of reference, refer to like parts, fig 2, is a side,
elevation of the Ladle shewing the Cylinders in section. A. A. are the trunnions
of the Ladle, which rest upon the sliding Cylinders B. B. containing the helical
springs C. C which rest upon the pistons D. D. having their support upon the base
plate F.
Fig. I is an end elevation of the Ladle shewing the attachment of the cranked

page_text: axel F. to the base plate E. The bearings e. of the axles are secured against the
admission of metal grit &c by screwed caps has shewn.
Fig. 4. is a plan, & Fig. 3. a side elevation, shewing the arrangement for securing
the Ladle in a vertical position when not in use. f, is a catch bolt attached to the
Ladle which engages with a vertical slot formed in the upper part of one of the
sliding Cylinders, B. to receive it.-g. is a rod by means of which the catch f. is
withdrawn when required by means of the lever h. actuated by the hand, or knee,
of the attendant.
Having now particularly described the nature of my said invention and in what
manner the same is to be performed, I declare that what I claim is:-
1st The construction and arrangement of a Foundry Ladle with automatic action
as illustrated and described in the accompanying drawings wherby the rotary and
downward motion of the lip, or mouth of the Ladle in pouring is compensated for
by the upward and automatic action of the supporting springs carrying the load.
Dated this 27th day of September 1884.