IMPROVEMENTS IN MACHINERY OR APPARATUS FOR USE IN PICKLING AND SWILLING METAL PLATES
Year: 1885

page_text: and GWYBOD
I ROBERT EVANS of Copper House Foundry Landore in the County of
Glamorgan Iron Founder do hereby declare the nature of my invention for
IMPROVEMENTS IN MACHINERY OR APPARATUS FOR USE IN PICKLING AND SWILLING
METAL PLATES to be as follows:-
In the manufacture of tin plates and other metal plates they are made to
undergo a process of preparation called pickling to remove superficial or extraneous
matters and "swilling" to remove the "pickling" material and many and various
plans have been adopted for effecting the insertion, operation in, and removal from,
the vats of the plates to be treated but generally these have been unsatisfactory,
expensive or inadequate.
According to my invention the plates are arranged in cradles or frames and
suitably kept in relative position therein.
These cradles or frames are suspended on rods, or equivalent supports, from
suitable arms or supports from the parts of the steam or other power cylinder for
supporting the cradles attached, in the vats and transporting them from one vat to
another.
The vats and cradles are arranged in pairs or other suitable series and so that
two, or other number, of the suspended cradles may be connected by rods to a
forked or V lever or bell crank arms placed on an upright shaft, rotating in an
upright pillar, or bearings, and oscillated or partly rotated by means of another
arm or part operated by connections to a steam engine or other power, with the
aid of suitable gear.
The bearings of the cradles by which they are rocked or alung are double on
each side so that as they are swung to and fro thereon, a combination motion
approximating to that of a parallel rule limb is attained and the vats being made
of figure internally to correspond much less quantity of pickle needs to be employed
at a time than if the cradle were swung to oscillate on a single centre as has been
practised.

page_text: The cradle which may be of yellow, or other metal, or material best adapted for
the purpose to resist acid or liquor employed, is formed (by preference cast in one
piece) to support the plates vertically, when placed therein before entering the
vats, with bars or guides at the lower part and suitable end framing and upper
part or frame carrying the bearings for the suspending supports.
Suitable balance weights connected to the cradles are employed.
The vats for the pickling and for the swilling operations are similarly arranged
and the cradles are thus transferable from one to the other in order to treat the
plates accordingly.

page_text: Improvements in Machinery or Apparatus for Use in Pickling
and Swilling Metal Plates.
I, ROBERT EVANS of Copper House Foundry Landore in the County of
Glamorgan Iron Founder, do hereby declare the nature of my invention for
"IMPROVEMENTS IN MACHINERY OR APPARATUS FOR USE IN PICKLING AND
SWILLING METAL PLATES," and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
In the manufacture of tin plates and other metal plates they are made to
undergo a process of preparation called pickling to remove superficial or extraneous
matters and "swilling" to remove the "pickling" material and many and various
plans have been adopted for effecting the insertion, operation in, and removal from,
the vats of the plates to be treated but generally these have been unsatisfactory,
expensive or inadequate.
According to my invention the plates are arranged in cradles or frames and
suitably kept in relative position therein.
These cradles or frames are suspended on rods, or equivalent supports, from
suitable arms or supports from the parts of the steam or other power cylinder for
supporting the cradles attached, in the vats and transporting them from one vat to
another.
The vats and cradles are arranged in pairs or other suitable series and so that
two, or other number, of the suspended cradles may be connected by rods to a
forked or V lever or bell crank arms placed on an upright shaft, rotating in an
upright pillar, or bearings, and oscillated or partly rotated by means of another
arm or part operated by connections to a steam engine or other power, with the
aid of suitable gear.
The bearings of the cradles by which they are rocked or alung are double on
each side so that as they are swung to and fro thereon, a combination motion
approximating to that of a parallel rule limb is attained and the vats being made
of figure internally to correspond much less quantity of pickle needs to be employed
at a time than if the cradle were swung to oscillate on a single centre as has been
practised.
The cradle which may be of yellow, or other metal, or material, best adapted for
the purpose to resist acid or liquor employed, is formed (by preference cast in one
piece) to support the plates vertically, when placed therein before entering the
vats, with bars or guides at the lower part and suitable end framing and upper
part or frame carrying the bearings for the suspending supporta.
Suitable balance weights connected to the cradles are employed.
The vats for the pickling and for the swilling operations are similarly arranged
and the cradles are thus transferable from one to the other in order to treat the
plates accordingly.

page_text: DESCRIPTION OF THE DRAWINGS,
Fig. 1. is a side elevation.
Fig. 2. is a plan view.
a are the cradles in which the plates to be pickled are arranged between divisions
or separating parts a¹ and these cradles a are supported in the vats b by means of
the rods a attached to rocking bearings a³ carried by the arms a* operated for
their rise and fall by being formed on or applied to the steam or other power
cylinder ao. These arms a are capable of raising the cradles carried by them and
of transporting them from one pickle trough or vat b to another.
In the arrangement illustrated two vats b are arranged equidistant, near to the
cylinder a and the three cradles a are connected by their rods to the three arms a*
carried on the upright cylinder a rotating and sliding therewith.
The third cradle 3 being available for emptying and refilling.
The cradles a with their plates are rocked to and fro in the vats b on their
double slings or arms a³ and bearings a³ by means of links c' attached to the
cradles a and to the forked arms c carried by the upright d in bearings or
supports in the framing A and to this upright d is also secured another arm d'
which is connected to the steam engine B or other power by suitable links d³ and
parts so as to impart through the arm d² a to and fro motion to the forked arms
and to the cradles in the vats 6 producing a compound motion or parallel motion
most conducive to thorough action of the pickle and to enable less quantities of
pickle to be employed. e is a balance weight attached to the chain e¹ passing
over pullies ee³ and connected to the upright cylinder a supporting the arms a
to counterbalance the parts and transfer the weight to the supports fabove.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed I declare that what
I claim is:
The combination and arrangement of parts of supporting, transferring and
agitating means employed in pickling and swilling metal plates substantially as
and for the purpose herein described and shewn by the drawings.