Improved Machinery or Apparatus for Cleaning Tin and Terne Plates.
Year: 1893

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Date of Application 25th Apr., 1893
Complete Specification Left, 24th Jan., 1894-Accepted, 25th Apr., 1894
...
PROVISIONAL SPECIITUATION.
Improved Machinery or Apparatus for Cleaning Tin and
Terne Plates.
We, WILLIAM WILLIAMS, of 1, Bryn, Pontardulais, Tin-house Superintendent,
JONATHAN WILLIAMS, of 2 Brookland Terrace, Pontardulais, Millwright, and
REES HARRIES, of Bolgoed, Pontardulais, Tin-plate Works Manager, do hereby
declare the nature of this invention to be as follows:
This invention which relates to the well-known process of cleaning tin and terne
plates by drawing them through bran, consists in improved machinery or apparatus
for effecting the said purpose.
The said machinery 'or apparatus is constructed, arranged and operated. as
follows. Centred on a shaft extending transversely across the bran trough arena
pair of circular frames fitted with arms or spokes and resembling wheels. These
frames, which are fixed at, a suitable distance apart, are coupled by transversesbars,
preferably four in number; situated at-équal distances apart. At intervals along
these.bars are jaws formed by toes or spikes of which there are two, projecting in
reverse directions, to each' jaw.
:
As, in the rotation of the frames, each row of jaws is presented at the feeding
end of the trough, a plate is deposited in the jaws; and by the continued rotation of
the frames the outer end of a counterweighted arm, pivotted on arrod extending
from one frame to the other and fitted at one end with a crank, is brought by the
tilting of the said arm; to bear against the inner face of the plate and thus to grip
the plate between it and the inner face of the bar on which the jaws are formed.
The number of counterweighted-arms 'corresponds to that of the transverse bars
carrying the jaws. The counterweights normally lie on a swell-formed on the
driving shaft. Each plate is in turn seized as aforesaid, and is drawn through the
bran: On arriving at the delivery end of the trough each counterweight in turn
tends to resume its normal position and thus to release the plate, but this action!is
prevented by contact of the crank with a "quadranthfixed eat one side of the
trough. When the crank has, in the continued rotation of the circular frames,
passed beyond the upper end of the quadrant, the counterweighted arm returns>to
its normal position and the plate, having been carried up to a suitable height, is
released.
**
Ce faci
In its descent it is guided to fall clear of the trough by suitably shaped guides
carried by the transverse bars coupling the circular frames.
:
After having been released, each plate may be directed into and carried reversed
through similar machine.

page_text: Improved Machinery or Apparatus for Cleaning Tin and
"Terme Plates.
We, WILLIAM WILLIAMS, of 1, Bryn, Pontardulais, Tin-house Superintendent,
JONATHAN WILLIAMS, of 2 Brookland Terraco, Pontardulais, Millwright, and
REES HARRIES, of Bolgoed, Pontardulais, Tin-plate Works Manager, 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 :-
This invention, which relates to the well-known process of cleaning tin and terne
plates by drawing them through bran, consists in improved machinery or apparatus
for effecting the said purpose.
The said machinery or apparatus is constructed, arranged and operated as
follows. Centred on a shaft extending transversely across the brau trough are a
pair of circular frames fitted with arms or spokes and resembling wheels. These
frames, which are fixed at a suitable distance apart, are furnished with racks,
preferably four in number, situated at equal distances apart.
As in.the rotation of the frames, each rack is presented at the feeding end of the
trough, a plate is deposited in the rack jaws and by the continued rotation of the
frames the outer end of a gripper actuated through the medium of a counter-
weighted' rod fixed to a shaft extending from one frame to the other, is brought, by
the tilting of the said rod, to bear against the inner face of the plate and thus to
grip the plate between it and the inner edge of a flat arm secured to a boss fixed on
the main shaft. Each plate is in turn seized as aforesaid and is drawn through the
bran. On arriving at the delivery end of the trough each counterweight in turn
tends to resume its normal position and consequently to release the plate, but this
action is prevented by contact of a tappet with a cam fixed at one side of the
trough.
When the tappet has, in the continued rotation of the circular frames, passed
beyond a shoulder in the cam, the counterweighted rod returns to its normal
position and the plate, having been carried up to a suitable height, is released:
After having been released each plate may be directed into and carried reversed
through a similar machine.
In the accompanying drawings,
Fig. 1 represents a side view of our improved apparatus for cleaning tin and
terne plates. For the purpose of clearer illustration, one side of the bran trough is
removed.
Fig. 2 is a part vertical section and part end elevation. From this view parts of
the apparatus shown at Fig. 1 are omitted to avoid confusion in interpreting the
drawing.
Centred and keyed on the shaft a, which extends transversely across the trough b
and is rotated by suitable gearing, are a pair of circular frames c furnished with
spokes c' and resembling wheels. The frames c which are set at a suitable distance
apart are coupled opposite the outer end of the spokes c¹ by bars e carrying forks or
jaws e' which constitute racks for receiving the plates. As, in the rotation of the
frames, each rack is, in turn, presented at the feeding end A of the trough b, a plate
is placed edge-wise in the rack.
Fitted to turn in bearings in the spokes care shafts & which, for that portion
which is between the spokes, are square or rectangular in section, but are elsewhere
round. To the shafts d are fixed arms f carrying counterweights g attached by the
binding screws g' as shown. The counterweights g normally rest on bars a fixed
to the flanges of the boss a'. The shafts d also carry a pair of grippers & securely
fixed thereto and curved back at their outer ends.

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Arranged concentrically with the rims of the frame c are guides the outer faces.
of which are flush with the peripheries of the frames c. The guides are bolted
together by bolts which also secure them to arms j fixed to the boss a¹ on the-
shaft a and extending outwards beyond the frames c, as shown. Fixed. to one side
of the trough b is a cam k on the outer face of which travel the tappets / secured to.
the shafts d.
The operation of the machine is as follows. A. plate to be cleaned is deposited.
in one of the racks as that rack is presented at the feeding end A of the trough b..
In the continued rotation of the frames c, the counterweight of the counterweighted.
rod f appertaining to the rack in which the plate is contained is tilted away from
the bar a on which it normally rests and thus causes the plate to be gripped
between the grippers h on the shaft d to which the said counterweighted rod is
attached, and the inner edges of the flat arms; appertaining to the rack and
counterweighted rod in question. Being thus seized, the plate with its inner face
lying against the guides i is carried down into the bran contained in the trough b
and is carried round to the delivery end B of the trough where it would be released
as soon as the counterweight moved towards the boss a¹. This movement is,
however, delayed by one of the tappets being in contact with the cam k. But-
when the said tappet has passed beyond the shoulder k¹ of the cam k the counter-
weight is free to move towards the boss a¹ and release the plate.
When release occurs, the plate has been carried up above the trough 6 to such a.
height that on its release it shoots out clear of the trough.
The action is precisely the same with respect to each plate and the mechanism.
appertaining to each rack.
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 :-
In a rotary machine for cleaning tin and terne plates, the means hereinbefore
described for gripping the plates and for carrying them through the trough and for
releasing them at the delivery end; said means consisting of the circular frames c,.
shafts d, rack bars e, racks e¹, counterweighted rods 9, grippers h, guides i, arms j,-
cam k and tappets 1; all constructed, arranged and operating substantially as
herein before described with reference to the accompanying drawings.
Dated this 23rd day of January 1894.
NICHOLAS WATTS,
Bristol, Chartered Patent Agent..