Improved Apparatus for Dipping or Cleansing Tin and Terne Plates.
Year: 1887

page_text: Date of Application, 30th Nov., 1887
Complete Left, 31st Jan., 1888
Complete Accepted, 2nd Mar., 1888
PROVISIONAL SPECIFICATION.
Improved Apparatus for Dipping or Cleansing Tin and
Terne Plates.
I, HARRY WILLIAM BUDDICOM of Pen y pound, Abergavenny, Engineer, do hereby
declare the nature of this invention to be as follows:-
My invention has reference to an improved apparatus for dipping tin and terne
plates, that is to say, for cleansing such plates by means of bran or other suitable
granular material after they are removed from an oil bath.
For this purpose, I construct an open drum revolving on a horizontal axis and
having two or more inner annular troughs or passages, situated side by side in which
is placed the bran or other cleansing material, which, as the troughs revolve slowly in
one direction, practically remain near the bottom thereof.
On the bottom surface of each trough are a series of projections or catches against
which the plates to be cleansed are placed so that as the drum revolves, the catches carry
the plates round with them and thus cause them to pass underneath the bran which
is thus made to cleanse the surface of the plate presented to it.
Within the centre
part of the drum is a fixed incline or series of inclines, the upper end of which is
presented to an upper part of the first trough while the lower end is presented to a
lower part of the second one, and so on, if there are more than two. The upper end
of the incline has a curved guide entering the first trough and so formed that as a
plate is raised up after passing through the bran as described, it is delivered by the
guide on to the incline with the surface which has been acted upon undermost. The
plate then slides down the incline and on to a flap or trap door formed at its lower end,
which is held closed by a spring or weight until it is pressed down by a stud on the
revolving drum, so as to deliver the plate into the second trough. Here it is again
seized by a catch and carried through the bran, which consequently acts upon the
other side thereof.

page_text: The plate being again carried up it is either delivered on to a second incline
leading to a third trough, if there are more than two, or if there are only two, it is
raised to a stationary bar in the second trough on which it falls and which delivers it
on to a shoot on which it passes out of the machine.
The shoot is divided so as to allow the arms of the drum to pass, and the falling
plate is arrested by a catch until the arm has just passed, so that the plate cannot be
caught by the arm.
Dated this 30th day of November 1887
ABEL & IMKAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improved Apparatus for Dipping or Cleansing Tin and
Terne Plates.
I, HARRY WILLIAM BUDDICOM of Pen-y-pound Abergavenny, 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:
My invention has reference to an improved construction of apparatus for dipping
or cleansing tin and terne plates by means of bran or other suitable granular material
after they are removed from an oil bath. According to my invention the plates are
introduced into vertically arranged annular revolving troughs containing bran or
other cleansing material, which, as the troughs revolve, is thereby caused to tumble
over and over, so as practically to remain in one and the same position on the rising
side of the trough, so that as the plates are placed between catches on the descending
side of the trough, they are in travelling round with the same, carried through the
stationary layer of bran, and become cleansed by the rubbing action of the bran to
which they are thus subjected. The plates may be so placed in the trough that they
pass about midway through the thickness of the layer of bran, so as to be acted
upon more or less equally on both sides at the same time, whereby the cleansing
operation may be more or less perfectly carried out by merely continuing the rotation
of the trough any required number of times with the plate or plates in the same
position after which they are removed, but by preference 1 provide arrangements
whereby the plate after having passed through the bran, has its position reversed
either in the same trough or in a second one so that the side which was undermost
and was therefore less subjected to the rubbing action than the other side is then
uppermost as it passes through.

page_text: In order to render the action of the apparatus a continuous one. I prefer to arrange
two or more such annular troughs side by side and to cause the plates, after they have
heen passed through the bran in the first trough, to be automatically turned over and
at the same time conveyed into the next trough where they are again subjected to the
same operation, and so on, if there are more than two troughs, the plates being
automatically delivered out of the last trough.
On the accompanying drawing is shewn the arrangement of the before described
apparatus which I prefer to employ Fig. 1 shews a front elevation. Fig. 2 a cross
section, and Fig. 3 a part section showing the hinged reversing flaps in their raised
position. A is a drum containing two annular troughs A A², the drum being
supported upon rollers B and rotated in the direction of the arrow by any suitable
means. Each trough contains a body of bran or other suitable granular material C,
which as the troughs slowly rotate falls over and over so as to permanently assume
about the position shewn. In the bottoms of the troughs are fixed projecting pins or
catches DD for holding the plates to be acted upon, bars E being by preference
arranged between the catches, raised up from the bottom of the trough so that the
plate in resting thereon has its underside more or less exposed to the rubbing action
of the bran, as it is carried through the same. Within the troughs A¹ A2 are arranged
two stationary inclines F F¹, supported by standards G. The incline F has firstly at
its lower end a guard H for the reception of the plates to be acted upon hinged to its
outer side and secondly at its upper end a flap I hinged to its inner side. The guard H
carries a cam shaped arm J connected by a rod K to a lever L on a spindle M carried
in brackets on the middle flange of the drum A and fixed to an arm on the flap 1.
This flap is connected by a rod N with a similar hinged flap I¹
incline F.
The action is as follows:-
on the
The drum A is provided with two tappets 00 which, as it rotates bear against the
arm J and thereby turn the guard Hinwards from the position shewn, so that a tin
plate P which had been placed upon it by the workman is thrown down on to the
incline F, from which it slides down and falls from the curved end thereof into the
trough A, between the catches D D, as indicated by the dotted position at P¹.
In this position the plate is carried through the bran at C as described, and in
rising up beyond this falls against a curved guard Q fixed to the upper end of the
incline so as eventually to fall on to the latter as indicated at P2 where it slides
down on to the flap 1. By the time the plate has arrived in this position, the second
tappet will have arrived at the arm J'and in acting upon this, will firstly cause
another plate to be delivered from Hon to F and secondly will cause the two flaps 1 P¹
to be raised into the vertical position shewn at Fig. 3, whereby the plate 12 lying
on I will be turned over on to the slide F¹ underneath the flap I, and will slide down
this into the trough A2, in which it will be received by catches D and will then be
carried up through the layer of bran contained in this trough. On passing up the
plate will again be led by a guide Q on to the flap 1', of incline F, and this being then
iilted up simultaneously with I as before described, the plate will be delivered thereby
on to the table R, whence it is removed by the attendant.
It will be seen that as the plate P falls from F and F into troughs A¹ and A² it is
turned over, and that it is also turned over when it is delivered from trough A¹ on to
flap I, which again turns it over as it delivers the plate on to the incline F. By this
means the one side of the plate is presented uppermost as it is carried through the
bran in trough A¹ and the other side is uppermost when it is carried through the bran
in A, so that both sides are equally acted upon before the plate passes out of the
machine. The plates still require dusting after removal from this apparatus.
The guard Hand flaps are brought back into their original positions after
having been tilted, either by balance weights or springs.
It will be evident that there might be a series of three or more troughs instead of
two, or that only one might be employed, in which case the lower part of the slide
would be so arranged as to deliver the plate on to the trough without being turned
over, in order that after being passed through the bran with one side uppermost and

page_text: being then turned over on to the slide F with its other side uppermost it may be
delivered on to the trough and be carried through the bran in this position.
On being delivered on to the slide after passing the second time through the bran,
the plate would in this case be removed by hand."
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. Apparatus for dipping or cleansing tin and terne plates, consisting of a vertically
revolving annular trough containing a layer of bran or other granular material, and
having catches or appliances whereby the plates to be cleaned are carried round
through the layer of bran which in falling over always remains in about the same
position in the trough substantially as herein described.
2. Apparatus for dipping or cleansing tin and terne plates consisting of a vertically
revolving annular trough containing a layer of bran or other granular material and
having catches or appliances whereby the plates to be cleaned are carried round
through the bran, which remains in about the same position, and a stationary inclined
shoot within the trough on to which the plate is delivered in an inverted position
after it has passed through the bran and from which it slides down into the trough
again in order to be passed through the bran in the inverted position, substantially as
herein described.
3. Apparatus for dipping or cleansing tin and terne plates consisting of two or more
vertically revolving annular troughs arranged side by side each containing a layer of
bran or other granular material and having catches or appliances whereby the plates
to be cleansed are carried round through the bran which remains. in about the same
position and stationary inclined shoots within each trough having each a hinged flap
at the upper end for receiving the plates after passing through the bran and a cam
lever connected to the flaps and acted upon by tappets on the revolving trough so
as to raise the flaps after the plates have been deposited thereon, and cause these to
be turned over and delivered on to the shoot in the next trough substantially as herein
described.
Dated this 21st day of Januar 1000