IMPROVEMENTS IN MACHINERY OR APPARATUS USED IN THE MANUFACTURE OF TIN, TERNE, OR OTHER METAL PLATES
Year: 1879

page_text: LETTERS PATENT to Francis Augustus Woodruff, of Machen, in the County.
of Monmouth, and Edward Evans, of Caerphilly, in the County of Glamorgan,
for the Invention of "IMPROVEMENTS IN MACHINERY OR APPARATUS USED
IN THE MANUFACTURE OF TIN, TERNE, OR OTHER METAL PLATES."
•
PROVISIONAL SPECIFICATION left by the said Francis Augustus Woodruff
and Edward Evans at the Office of the Commissioners of Patents on the 4th
December 1879.
FRANCIS AUGUSTUS WOODRUFF, of Machen, in the County of Monmouth, and I
"IMPROVEMENTS IN
EDWARD EVANS, of Caerphilly, in the County of Glamorgan.
MACHINERY OR APPARATUS USED IN THE MANUFACTURE OF TIN, TERNE, OR
OTHER METAL PLATES."
This Invention has reference to improvements in machinery or apparatus for
driving rollers employed in finishing plates of coated metal.
Hitherto, when rollers have been used for finishing sheets of coated metal, the
gearing has been of such construction that the teeth of the gearing cause a
chattering or jogging motion to the rollers, and these transmit the motion to the plates
when being finished, thereby causing longitudinal. ridges or "stops" to appear
on the surface of the plates, and thus much reducing their marketable value.
Our improved apparatus consists in employing universal joints on each end of
shafts placed in. a diagonal position and intermediate between the ends of the
rollers and elevated driving gear, or we place them revolving in grease horizontally
with the rollers.
In applying our improved apparatus for driving to existing plant, we make a
gap or opening in the side of the "grease-pot" in a line with the rollers, and attach
to the side of such gap or opening an open box or trough, so that the driving
apparatus employed may be in an elevated position, and quite clear of the grease.
The advantages obtained by driving with our improved apparatus are three-
fold. In using it is not necessary to change the wheels when changing finishing
rollers, even when the size of the rollers is reduced; thus the rollers can at any
time be returned without interfering with the driving gear, thereby economizing
greatly the cost of changing wheels.
"
The durability of rollers is increased by the prevention of tremor or "chattering
of the gearing, whereby the rollers are kept in working condition for a longer
period.
The smooth, steady, and regular action of the finishing rollers produces a superior
surface in plates, thus enhancing their marketable value, as plates are by this
means made practically perfect.

page_text: Fig. 6 shews them constructed of spiral springs; Fig. 7 shews the application of
ball and socket joints for the same purpose.
Having now described the nature of our said Invention and the manner of
performing the same, we would have it understood that what we claim as our
improvements in machinery or apparatus used in the manufacture of tin, terne, or
other metal plates is, the driving of the finishing rollers by means of flexibly jointed
shafts, substantially as hereinbefore described and shown in the accompanying
Drawings, whereby all ridges or "stops" in the finished plates are avoided and a
superior surface obtained.
In witness whereof, we, the said Francis Augustus Woodruff and Edward
Evans, have hereunto set our hands and seals, this First day of June, in
the year of our Lord One thousand eight hundred and eighty.