IMPROVEMENTS IN OR CONNECTED WITH APPARATUS FOR PRINTING WOVEN FABRICS
Year: 1879

page_text: LETTERS PATENT to Hamilton Oliver, Printer, in the Employment of Messieurs
John Orr Ewing and Company, of Alexandria, in the County of Dumbarton,
North Britain, for the Invention of "IMPROVEMENTS IN OR CONNECTED WITH
APPARATUS FOR PRINTING WOVEN FABRICS."
.
PROVISIONAL SPECIFICATION left by the said Hamilton Oliver at the
Office of the Commissioners of Patents on the 2nd September 1879.
HAMILTON OLIVER, Printer, in the Employment of Messieurs John Orr Ewing
and Company, of Alexandria, in the County of Dumbarton, North Britain.
"IM-
PROVEMENTS IN OR CONNECTED WITH APPARATUS FOR PRINTING WOVEN FABRICS."
This Invention relates to printing apparatus of or similar to the kind described
or referred to in the Specification of Letters Patent granted to John Christie and
George Izatt, and dated 5 June 1878 (No. 2240); and the object of the present
improvements to secure increased accuracy and to avoid the great loss of time
hitherto experienced through the difficulty of getting a correct fit or register
between the successive portions of the patterns when printed from separate plates.
In a machine of the kind referred to the fabric passes downwards to a.roller.
then round under the roller and up again, and the plate moves horizontally with
its printing surface uppermost and prints on the fabric the bottom of the roller
round which the fabric passes.
By the present Invention the accurate starting of each successive impression is
secured by adjusting the roller round which the fabric passes, so that a point of the
last impression received is brought at the underside of the roller to coincide with
the point of a movable gauge or curved bar, the end of which is set in a socket on
the framing. And to enable the workman to see when the two points do coincide
a mirror is adjusted in a suitable position below and at a little distance back so as
to reflect the points upwards.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Hamilton Oliver in the Great Seal Patent Office on the 28th
February 1880.
"IM-
HAMILTON OLIVER, Printer, in the Employment of Messieurs John Orr Ewing
and Company, of Alexandria, in the County of Dumbarton, North, Britain.
PROVEMENTS IN OR CONNECTED WITH APPARATUS FOR PRINTING WOVEN FABRICS."
My said Invention relates to printing apparatus of or similar to the kind described
or referred to in the Specification of Letters Patent granted to John Christie
and George Izatt, and dated 5 June 1878 (No. 2240); and the object of my present
improvements is to secure increased accuracy, and to avoid the great loss of time
hitherto experienced through the difficulty of getting a correct fit or register
between the successive portions of the patterns when printed from separate plates.
In a machine of the kind referred to the fabric passes downwards to a roller,
then round under the roller and up again, and the plate moves horizontally with
its printing surface uppermost, and prints on the fabric at the bottom of the roller
round which the fabric passes.
By my present Invention the accurate starting of each successive impression is
secured by adjusting the roller round which the fabric passes so that a point of the
last impression received is brought to coincide with the point of a gauge. It is
generally desirable that the point on the fabric which is set to the gauge should
when being so set be at the bottom of the roller under which the fabric passes; and
in carrying out my Invention a mirror is adjusted in a suitable position so as by
reflecting upwards the points of the fabric and gauge to enable the workman to
see when the two points coincide. The gauge is movable and in the form of a
curved bar, the end of which can be set in a socket or may be hinged or attached
in an equivalent manner to the framing, but if a different point on the fabric is
adopted for setting, the gauge may be a fixture.
And in order that my said Invention and the manner of performing the same
may be properly understood I hereunto append a Sheet of explanatory Drawings,
to be hereinafter referred to, and representing one modification of my improved
arrangements. In these Drawings the same reference numerals are used to mark
the same or like parts wherever they are repeated.
Figure 1 on the accompanying Sheet of Drawings is a sectional side elevation of
a printing machine of the kind to which my improvements are applied, the side
frame of the near side of the machine being supposed to be removed; and Figures 2
and 3 are detached views of the gauge which I employ.
pro-
The woven fabric 4 is represented as being drawn off a roller 5, which is
vided with a handwheel 6 for winding back when necessary in adjusting; and the
fabric passes with the blanket 7 round under a roller 8 and then up again, the
roller 8 being also provided with a handwheel 9, whereby it can be easily and
accurately adjusted. The printing plate 10 is as usual on a frame or carriage 11,
resting and moving on rollers 12; and directly below the roller 8 there is as usual
the roller 13, by which the printing action is effected, this roller having the usual
cut-away part, which when uppermost allows the printing plate 10 to be moved
back without touching the fabric. In-the-example delineated the setting point 14.
is situated on the underside of the roller 8, and the movable gauge 15 (shown
separately in Figures 2, 3,) is in Figure 1 shown as being applied whilst the rollers
8 and 5 are being moved to make the point on the fabric agree with the point of
the gauge. During this operation the other end of the gauge 15 is entered into a
socket in a fixed frame bar 16. To enable the workman to see when the points
coincide a mirror 17 is adjustably fixed in a suitable position for reflecting the
points 14 upwards, as indicated by the dotted lines, the workman looking down-
wards at the mirror. With these arrangements the fabric can be adjusted with

page_text: great facility, speed, and accuracy for receiving each successive impression of the
plate or plates, the results constituting a practical improvement on those hitherto
obtained with similar apparatus.
Having thus particularly described my said Invention and the manner of per-
forming the same I have to state that I do not restrict myself to the precise details
herein described or delineated; but that what I believe to be novel and original
and claim as the Invention secured to me by and in terms of the hereinbefore in
part recited Letters Patent is,―
The improved arrangements herein before described, by means of which in
printing a woven fabric by engraved plates the fabric is easily and quickly set to
secure the accurate fit or register of successive impressions.
In witness whereof, I, the said Hamilton Oliver, have hereunto set my hand
and seal, this Twenty-sixth day of February, in the year of our Lord One
thousand eight hundred and eighty.
Witness,
EDMUND HUNT,
Patent Agent,
Glasgow.
HAMILTON OLIVER. (L.S.)