IMPROVEMENTS IN MACHINERY OR APPARATUS FOR MARKING, ETCHING, OR ENGRAVING CYLINDRICAL AND OTHER SURFACES
Year: 1863

page_text: LETTERS PATENT to Robert Burgess, of the City of Manchester, in the
County of Lancaster, Engraver to Calico Printers, for the Invention of
"IMPROVEMENTS IN MACHINERY OR APPARATUS FOR MARKING, ETCHING, OR
ENGRAVING CYLINDRICAL AND OTHER SURFACES."
Sealed the 6th November 1863, and dated the 11th May 1863.
PROVISIONAL SPECIFICATION left by the said Robert Burgess at the
Office of the Commissioners of Patents, with his Petition, on the 11th
May 1863.
I, ROBERT BURGESS, of the City of Manchester, in the County of Lancaster,
Engraver to Calico Printers, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR MARKING,
ETCHING, OR ENGRAVING CYLINDRICAL AND OTHER SURFACES," to be as follows:-
This Invention relates to those descriptions of marking, etching, or
engraving machines in which the pentagraph is employed for giving the
required movements to the roller or surface to be operated upon, and consists.
of certain improved arrangements for supporting the floating table which
carries the roller or surface, in order that the table may be moved longi-
tudinally and transversely with ease and certainty. The plate or surface of
the table rests, near each end, upon two discs or wheels supported on a
triangular shaft placed transversely across the machine and having bearings,
so that it can revolve. The two shafts are parallel with each other, and their

page_text: surfaces form beds on which run pulleys or guide rollers carrying as many
bars as there are surfaces, which bars are connected to a triangular box or
frame fixed to each disc or wheel outside the triangular shaft. Thus the discs
and bars ride, by means of the pulleys or guide rollers, on the surfaces of the
triangular shafts and allow the transverse movements of the table, and the
revolution of the shafts and disces its longitudinal movement. When a roller
or cylinder is to be marked, etched, or engraved, it is placed upon two plates,
one at each end of the table, which, when moved one way, takes the roller
with it, but when moved the other way gives a revolving motion to the roller
equal to the movement of the table, the movements of which are obtained by
the ordinary pentagraphic arrangement.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Robert Burgess in the Great Seal Patent Office on the
11th November 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ROBERT
BURGESS, of the City of Manchester, in the County of Lancaster, Engraver to
Calico Printers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eleventh day of May, in the year of our Lord
One thousand eight hundred and sixty-three, in the twenty-sixth year
of Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said Robert Burgess, Her special license that I, the said Robert
Burgess, my executors, administrators, and assigns, or such others as I, the
said Robert Burgess, my executors, administrators and assigns, should at
any time agree with, and no others, from time to time and at all times
thereafter during the term therein expressed, should and lawfully might
make, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an Invention
for "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR MARKING, ETCHING, OR
ENGRAVING CYLINDRICAL AND OTHER SURFACES," upon the condition (amongst
others) that I, the said Robert Burgess, my executors or administrators, by
an instrument in writing under my, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said Invention,
and in what manner the same was to be performed, and cause the same to be
filed in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.

page_text: NOW KNOW YE, that I, the said Robert Burgess, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement (that is to say):-
This Invention relates to those descriptions of marking, etching, or
engraving machines in which the pentagraph is employed for giving the
required movements to the roller or surface to be operated upon, and consists
of certain improved arrangements for supporting the ordinary floating table
which carries the roller or surface, in order that the table may be moved
longitudinally and transversely with ease and certainty. The plate or surface
of the table rests, near each end, upon two discs or wheels supported on a
triangular shaft placed transversely across the machine and having bearings
so that it can revolve. The two shafts are parallel with each other, and their
surfaces form beds on which run pulleys or guide rollers carrying as many
bars as there are surfaces, which bars are connected to a box or frame fixed to
each disc or wheel.
This Invention will be clearly understood by referring to the figures and
letters on the accompanying two Sheets of Drawings, in which Fig. 1 is an
end elevation of a pentagraph marking, etching, or engraving machine having
my improvements attached; Fig. 2 a transverse section, and Fig. 3 a side
view of part of the same; Fig. 4, a plan of Fig. 1; and Fig. 5, a transverse
section of a modified arrangement of Figs. 2 and 3; Figs. 1 and 4 being about
quarter size, and Figs. 2, 3, and 5 about full size.
In Figs. 1 and 4 the ordinary floating table is shewn at a, having fixed to
it the blocks b which support the roller or surface to be marked, etched, or
engraved. The said table, at each end, rests upon two discs or wheels c,
shewn enlarged in Figs. 2 and 3, which wheels are supported on a triangular
shaft & placed transversely across the machine and having its ends working in
bearings in the pedestals e, so that it can revolve. The two shafts d are
parallel with each other, and their surfaces form beds on which run pulleys or
guide rollers carrying as many bars 9 as there are surfaces, which bars are
connected to a triangular box or frame h, Figs. 2 and 3, fixed to or forming
part of each disc or wheel c, two of the bars being fixed by the screws i, k, and
the third bar, after being adjusted by the set screws l, m, is held fast by the
bolt and nut n. Or instead of the triangular box or frame I connect to the
disc or wheel ca box or frame o and caps p, Fig. 5, having recesses in which
the bars g are placed and afterwards held by the screws r, s, set screws u, v,
and bolt and nut w, in the same manner as in Figs. 2 and 3. Thus the discs
and bars ride, by means of the pulleys or guide rollers, on the surfaces of the

page_text: triangular shafts, and allow the transverse movements of the table and the
revolution of the shafts and discs its longitudinal movement. When a roller
or cylinder is to be marked, etched, or engraved, it is placed upon the two
blocks b, one at each end of the table, which, when moved one way, takes the
roller with it, but when moved the other way gives a revolving motion to
the roller equal to the movement of the table, the movements of which are
obtained by the ordinary pentagraphic arrangements.
Having now described the nature and particulars of my said Invention, and
the manner in which the same is to be performed, I desire it to be understood
that I claim the improvements in machinery or apparatus for marking, etching,
or engraving cylindrical and other surfaces, as far as concerns the triangular
shafts and parts connected with them for enabling the floating table to be
moved with ease and certainty, as herein described and illustrated in the
accompanying two Sheets of Drawings.
In witness whereof, I, the said Robert Burgess, have hereunto set my
band and seal, this Tenth day of November, in the year of our Lord
One thousand eight hundred and sixty-three.
Signed, sealed, and delivered by the
within-named Robert Burgess, in
the presence of
E. J. HUGHES,
Patent Agent,
Manchester.
ROBERT BURGESS. (L.S.)