IMPROVEMENTS IN MACHINERY FOR TRANSFERRING, AND FOR TRANSFERRING AND ENGRAVING DESIGNS AND FIGURES ON TO CYLINDRICAL AND FLAT SURFACES
Year: 1859

page_text: PROVISIONAL SPECIFICATION left by Hesketh Hughes and John Moore
at the Office of the Commissioners of Patents, with their Petition, on
the 9th December 1859.
We, HESKETH HUGHES, of Homerton, in the County of Middlesex, Engineer,
and JOHN MOORE, of Manchester, in the County of Lancaster, Manufacturer,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
MACHINERY FOR TRANSFERRING, AND FOR TRANSFERRING AND ENGRAVING DESIGNS
AND FIGURES ON TO CYLINDRICAL AND FLAT SURFACES," to be as follows:-
Our Invention consists in arrangements of machinery and apparatus here-
after described for engraving directly, or for marking out on a reduced scale, or
otherwise, according to the tool used, whether it be a cutting tool or simply a
marker, such as a pencil, on a cylinder or flat surface any given design, pattern,
figure, or device, placed on part of the apparatus, and followed by a pointer or
tracing lever, as hereafter stated.
We will describe the machine as applied to the engraving of a given design
upon a copper cylinder. The cylinder is placed in bearings in the frame of
the machine, with the axis projecting on both sides. To the axis on one side
we affix a dividing plate, and connect this plate to one of two side levers;
another side lever is connected to the axis on the opposite end of the cylinder,
and the two side levers are united by a cross bar, in which there is a slot
extending from one side lever to the other. These side levers and the slotted
cross bar may be all formed in one piece. The up-and down motion of these

page_text: levers causes the roller to move round to present a portion of its surface to be
acted upon by the cutting tool. The portion of the surface to be so acted upon
is determined by altering the position of the screw in the dividing plate. In
front of the roller, and fixed to a slide capable of motion across the machine,
is the cutting tool, the edge or point of which is set to cut more or less deeply
into the cylinder. In the upper part of this transverse slide is a vertical slot.
Jointed to a bar extending from a rod across the machine, and parallel with
the axis of the cylinder, is the tracing lever. This rod is supported at its ends
upon pivots to allow of its motion thereon. The joint by which the tracing
lever is connected to the bar is in front of the slot in the traversing slide; the
tracing lever is passed through the slot in the traversing slide; then through
the slot in the horizontal cross bar, and its point extends to the bed, bottom,
or back part of the machine on which the design to be engraved on the roller
is placed. The cutting tool simply travels in a direction to and fro across the
roller, according to the motion imparted to it by the tracing lever, pushing the
transverse slide, while the roller partakes of up-and-down or semi-rotary motion,
according to the movement imparted through the tracing lever taking with it
up or down in following the lines of the design, the slotted cross bar, and side
levers. To engrave along the whole surface of the cylinder the bar to which
the tracing lever is jointed has to be shifted along the transverse pivotted
rod, and set to act upon a fresh portion of the cylinder by means of a set
screw.