IMPROVEMENTS IN MACHINERY FOR ENGRAVING OR TRACING DESIGNS ON CYLINDRICAL OR OTHER SURFACES FOR PRINTING CALICO AND OTHER MATERIALS
Year: 1857

page_text: LETTERS PATENT to Joseph Lockett, of Strangeways, in the City of
Manchester, Engraver, and William Watson, of Alexandria, in the
County of Dumbarton, North Britain, Machine Engraver, for the In-
vention of "IMPROVEMENTS IN MACHINERY FOR ENGRAVING OR TRACING
DESIGNS ON CYLINDRICAL OR OTHER SURFACES FOR PRINTING CALICO AND OTHER
MATERIALS."
Sealed the 18th December 1857, and dated the 3rd July 1857.
PROVISIONAL SPECIFICATION left by the said Joseph Lockett and
William Watson at the Office of the Commissioners of Patents, with
their Petition, on the 3rd July 1857.
We, JOSEPH LOCKETT, of Strangeways, in the City of Manchester, En-
graver, and WILLIAM WATSON, of Alexandria, in the County of Dumbarton,
North Britain, Machine Engraver, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN MACHINERY FOR ENGRAVING OR TRACING DESIGNS
ON CYLINDRICAL OR OTHER SURFACES FOR PRINTING CALICO AND OTHER MATERIALS,"
to be as follows:-
The object for which this Invention is principally intended is to engrave or
trace designs on copper rollers for calico printers. The design to be trans-
ferred to the roller is placed on a flat table, and the pointer by which the
design is traced is mounted on a double. carriage, as heretofore practised; the
engraving or tracing tools are moved laterally, and the copper roller is turned
round or partly round by means of pulleys, or pulleys and levers, or a crank
pulley actuated by bands or other connecting agents attached to the double
carriage, the relative proportion between the pattern design and that engraved

page_text: or traced being determined by varying the diameters of the pulleys, by
moving the fulcrum of the levers, or varying the length of the crank.
The design is placed upon a revolving table fitted up with an index, or a
wheel and worm, or compound slide, by means of which the position or pro-
portions of the design to be traced may be changed. Motion is also given to
the revolving table by means of pulleys, pulleys and levers, crank pulley or
excentric.
Upon the slide which supports the engraving or tracing tools is fixed an
arm in communication with the pulleys, pulleys and levers, or crank pulleys,
for the purpose of reversing the design laterally: Upon the same slide is also
fixed a second slide, with screw and index to assist in setting the engraving or
tracing tools or stepping them laterally.
Another part of our Invention consists in attaching to the front of the
compound carriage a divided ruler or gauge. Upon the upper portion of the
compound carriage is fixed a spring and pointer to set the machine by the said
ruler or gauge. Upon the bed of the carriage is fixed a rail, baving moveable
'stops, and fitted with a divided ruler or gauge set at right angles to the one
before mentioned. The lateral motion is also communicated to the tool or
graver slide by rack and pinion. The direction of motion of the roller and
of the tool or graver slide is reversed by upper and lower clamping screws
applied to the bands in connection with the pulleys or other agents com-
municating motion to the roller or slide.
Another part of our Invention consists in applying an engraved cylinder
to engraving or tracing machines, and in transferring the designs upon this
engraved cylinder to the surface to be engraved or traced by tracers actuated
as before described..
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Joseph Lockett and William Watson in the Great Seal
Patent Office on the 2nd January 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOSEPH 3
LOCKETT, of Strangeways, in the City of Manchester, Engraver, and WILLIAM
WATSON, of Alexandria, in the County of Dumbarton, North Britain, Machine
Engraver, send greeting.
WHEREAS Her most, Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Third day of July, in the year of our Lord One 3
thousand eight hundred and fifty-seven, in the twenty-first year of Her reign,

page_text: did, for Herself, Her heirs and successors, give and grant unto us, the said
Joseph Lockett and William Watson, Her special licence that we, the said
Joseph Lockett and William Watson, our executors, administrators, and
assigns, or such others as we, the said Joseph Lockett and William Watson,
our 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 FOR
ENGRAVING OR TRACING DESIGNS ON CYLINDRICAL OR OTHER SURFACES FOR PRINTING
CALICO AND OTHER MATERIALS," upon the condition (amongst others) that we,
the said Joseph Lockett and William Watson, our executors or administrators,
by an instrument in writing under our, or their, or one of our or 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.
NOW KNOW YE, that we, the said Joseph Lockett and William Watson,
do hereby declare the nature of our 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):-
The nature of our said Invention of improvements in machinery for
engraving or tracing designs on cylindrical or other surfaces consists,-
First, in certain improved combinations and arrangements of machinery for
giving a lateral motion in either direction to the diamond or tracer slide, and
a partial rotary motion to the cylinder or other surface on which the design is
to be engraved or traced.
Secondly, in improvements in machinery for setting the diamond or tracer
slide.
Thirdly, in the application of a revolving table to support the pattern
design.
Fourthly, in the application of a scale to the revolving table or stationary
table, or either of them, for dividing the engraving lines.
Fifthly, in making the table for the design a compound slide, and in an
improved combination of machinery for actuating it.
Sixthly, in an improved combination of machinery for actuating the
revolving table.
Seventhly, in certain improved modes of supporting the cylinder or other
surface to be engraved or traced.

page_text: And, lastly, in an improved combination of machinery for transferring the
design from a cylinder, cup, or excentric to the surface to be engraved or
traced.
And in order that our Invention may be fully understood and readily
carried into effect, we will proceed to describe the means pursued by us,
reference being had to the accompanying two Sheets of Drawings, and to the
figures and letters marked thereon.
On Sheet 1, Fig. 1 is an end elevation of a machine for engraving, to
which some of our improvements are applied; Fig. 2 is a front elevation;
Fig. 3 is a plan of the same.
Figs. 4 and 5 shew part of our improved diamond or tracer slide.
Figs. 6 and 7 shew the rail or bar for setting the diamond or tracer slide
and its dependencies in a diagonal position.
Figs. 8 and 9 shew our improved table for supporting the design and the
machinery in combination therewith.
Fig. 10 shows a plan of another table for the design.
On Sheet 2, Fig. 11 is an end elevation, and Fig. 12 is a front elevation,
of an engraving machine, to which a modification of our improvements is
applied.
Fig. 13 shows our improved mode of applying levers to engraving machines.
Figs. 14, 15, and 16 shew a modification of our Invention of setting the
diamond or tracer slide in à diagonal position.
Fig. 17 is a sectional elevation, and Fig. 18 is a front elevation, of an
engraving machine, to which another modification of our improvements is
applied.
Fig. 19 shews the application of a double rack and pinion to the tracer or
diamond slide; Fig. 20 shews the same, with the addition of a screw and slide
for the purpose of stepping the diamond or tracer slide.
Fig. 21 shews another mode of transmitting rotatory motion to the cylinder
to be engraved or traced.
Fig. 22 is an end elevation, and Fig. 23 a front elevation, of part of our
improved machinery for transferring the design from a cylinder, cup, or
excentric to the surface to be engraved or traced.
In Figs. 1, 2, and 3, A, A, are the frame sides, to which the table B, the
beam Ga, and the bearings of the friction bowls X, X, are fixed. The bear-
ings of the pulleys R, S, and T are bolted or screwed to the beam G, attached
to the beam G, which supports the brackets and autifriction bowls for the
diamond or tracer slide E. D is the cylinder to be engraved or traced, fixed
on a maundrill C, which is supported by the friction bowls or steps X, X.

page_text: The maundrill has a pulley P, fixed at one end, with a wheel P, and worni
for stepping the cylinder D in the usual manner. The tracer or diamond
slide E is supported by pulleys fixed in the slides V, V, V, which have screws
to regulate the height of the tracer to the cylinder D. The bar or beam G
is made to move on a centre stud through part of a circle, for the purpose
of being able to set the diamond or tracer slide E in a diagonal position.
Upon the beam or bar G is fixed the bracket 1, which supports the crank
pulley T, and the frame or bracket 2, which supports the pulleys R, S. Upon
the tracer or diamond slide E is also fixed at each end, one above and one
below, see Fig. 2, two slotted slides U, U b, connected to the pulley T by the
rod T. The connecting rod Ta is connected to the slide U or Ub by means of
a stud Ua, and to the pulley T by the stud t. It is evident that by removing
the connecting rod Ta from the studs Ua and t to the studs Ub and s, it will
reverse the lateral action of the diamond or tracer slide E. On the slide E
are fixed small bearings W, to support the graving tools in the ordinary
manner. F is a rail or slide, supported by two pulleys f. f, and having two
pulleys above to keep it adjusted. At each end of the rail F are screws g. g.
to fasten the band which passes round the pulley R, on the shaft of which;
supported by a bracket 2, is also fixed a smaller pulley S. The pulley S is
connected by a band with the crank pulley T, to which pulley the pulley S
transmits the motion received through the pulley R from the slide or bar F.
The crank pulley T, by means of the connecting rod T" and the slotted bar
U, gives the lateral motion to the tracer or diamond slide E. The bar or rail
F receives its lateral motion from the bar or rail H, which is screwed or
bolted on the carriage or slide J. The carriage or slide J has a traversing
motion upon two parallel rails or slides K, K, which are fixed upon two cross
rails or slides I, I a. The rails or slides I, I a, are supported upon pulleys L, L,
which are supported by brackets 3, 3. The rail or slide Ia is connected by a
band with the pulley La, on the shaft of which is the pulley M, supported by
a bracket. The pulley M is connected by a band with the crank pulley N..
on which is fixed, by a stud or pin O, a connecting rod and band or fiddlebow
O a. the band of which passes round a pulley P, fixed on the maundrill C. The
band round the pulley P' is made tight by means of the screw o; the fiddlebow
Oa is supported by the pulley Q. Y is a table, made to revolve by means of
a stud or pin connected with a wheel and index Z.
When the tracing point
jis moved over the design fixed on the table Y from left to right, the car-
riage J will traverse laterally, and will transfer its motion through the cross
rail to the rail F, which motion is further transmitted by means of the band
G to the pulley R, and from thence through the pulley S to the crank pulley

page_text: T (by means of bands, as already described), and from the crank pulley T to
the tracer slide E by means of the connecting rod Ta, thus giving a lateral
motion to the slide E. When the tracer j is moved over the design in the
direction of the rails I, I a, it will transmit its motion to the pulley La, by
means of the band i, and from the pulley La to the pulley M on the same
From the pulley M this motion is transmitted by means of a
band to the crank pulley N, and thence through the stud or pin O, the fiddle-
bow Oa and the band o, to the pulley P, fixed on the maundrill C, thus giving
a partial rotatory motion to the cylinder D.
shaft or stud.
It is evident that by changing the pulleys R and S, or La and M, or by
moving the studs or pins t, O, and Ua, the action on the slide E and on the
cylinder D may be increased or decreased as required, and by this means the
design or pattern to be traced may be diminished, or the proportions thereof
may be varied. When a pattern or part of a pattern has been traced on the
cylinder, the attendant, by removing his foot from the treadle P forces the
lever q against the levers Wa, by which means the diamonds or tracers are
lifted from the cylinder in the ordinary manner. By turning the worm on the
wheel Pa the requisite motion is given to bring another portion of the cylinder's
surface under the tracing points, as hitherto practised. The tracing or design
may be fixed on the table B without the table Y, and the machine may be
worked from either side by reversing the position of the levers j, a, and
tracer j.
Figs. 4 and 5 represent an improved tracer or diamond slide. The improve-
ment consists in having a small slide J, with a screw S, and index I, fixed on
the slide E; the slide J has a slide U with a slot, connected by the rod Ta
to the pulley T, see Fig. 2, the object of this slide is to place or step with
greater accuracy the tracers or diamonds on the cylinder. W represents one
of the holders for the tool or tracer of the usual construction.
Figs. 6 and 7 represent a moveable bar or beam G, fastened to the cross
beam G a, see Fig. 2, which has attached to it the slides and pulleys V, V, and
the brackets 1, 2. By setting the said bar or beam G in a diagonal position,
a corresponding angle will be given to the diamond or tracer slide E, and to
the pulleys R, S, and T, and thus to the diamonds or tracers which act upon the
cylinder. In Fig. 3, 4 is a scale attached to the table Y, by placing the
tracer in any of the divisions marked on such a scale, and loosening the
pulley P, at each revolution or partial revolution of the cylinder a corresponding
line or lines will be traced round its surface. 5 is another scale, fixed on the
table B, parallel with the slide I; a tooth or pointer is fixed to the slide I a,
by placing this pointer in any of the divisions of the scale 5, and moving the

page_text: carriage J or the rail K, a corresponding line or lines will be traced laterally
on the cylinder.
Figs. 8 and 9 show our improved compound slide and turning table. Da
is the pattern or design, fixed on the table a, a, by means of bolts or screws
or cramps. This table a, a, is supported on two slides or rails b, b, or it may
be supported on pulleys, and it is capable of moving laterally or longitudinally.
The rails or slides or pulleys are fixed on another table c, supported by means
of the rail or slides d, d, or by pulleys, and transversely by the slides b, b;
c, e, are the guides for the rails or slides; Y is the supporting table, made to
revolve on its centre, having a stud or pin, upon which may be fixed a wheel
and worm, as shewn at Z in Fig. 2. The rails or slides b, b, and d, d, are
supported by means of small brackets 1, 1, and 2, 2, at the end of the tables.
The table a has a projection conected with a slotted lever at g; the action
of the lever may be increased or decreased by changing the position of the
fulcrum stud. A rail or rod, passing under the rail I on the right hand,
is connected with the rail F on the diamond slide E, seen in Figs. 1, 2, and 3,
by means of levers, or pulleys and levers, or crank pulleys, thereby giving a
lateral or longitudinal motion to the rod or rail j, which motion will be trans-
ferred by the slotted lever to the slide a, a. The compound slide c receives
its transverse motion by means of the projection 7. connected by a pin or stud
with the slotted lever m, having also a moveable fulcrum n. At the end
of this same lever is a slot o, connected with the rail I by the pin or stud p..
By the motion of the said rail I a transverse motion is given to the slide c by
means of the lever m.. The slide c may also be moved by means of pulleys,
pulleys and levers, or crank pulleys. The compound slide c, the moveable studs.
n and h, and the levers m and k may be moved to any angle required. The
object of the compound slide is to compress or elongate the design or pattern,
so as to produce variations of its form on the surface to be engraved or traced.
Fig. 10 is another form of tracing table. Y is the table fixed on a centre,
as before explained, having a slotted projection a, in which is fitted the bowl
and stud at the end of the lever c; d is the moveable fulcrum; is a rod
connecting the lever c with the slide or carriage K, K', by means of a pin or
stud fixed on the cross bar or rail of the carriage. By moving the carriage
K, K', on the rail I, it gives motion to the table Y, and will also vary on the
surface to be engraved the form of the design or pattern which may be fixed
on the table Y. The motion of the table Y may also be given by means
of pulleys, pulleys and levers, or crank pulleys.
On Sheet 2, Fig. 11 is a sectional elevation, and Fig. 12 is a front clevation,
of another variation of our improved machine for tracing or engraving

page_text: cylinders. A a, A a, is a frame supporting the table and headstocks; X, X,
are the supports of the friction bowls upon which the mauudrill C rests. On the
maundrill C is fixed a pulley P, connected with a wheel Pa and worm; a band
passes round the pulley P to the pulley M, which receives its motion from the
pulleys L, L, fixed on a shaft. A band passes round the pulleys L, L, and is
connected with the cross carriage K by means of screws i, i. By moving the
carriage transversely on the rail I, it will set in motion the pulleys L, L, M,
and the pulley P. E is the diamond or tracer slide, shewn with only two
diamond brackets W, W, but any convenient number may be employed;
Ge, G, are two rods or slides, as in the ordinary excentric engraving
machine, having two steps or slides g, g, on cach bar; V, V, are the supports ;
U is a slotted projection fixed on the slide E; u is a slotted stud, having
a set screw to tighten the band which passes round the pulleys S, S. By
removing the slotted stud u to v, it is evident the lateral motion of the slide E
will be reversed. On the same shafts or studs on which are the pulleys S, S,
are also fixed the pulleys R, R, connected by bands with the slide Fat the
points 9, g. The slide F is supported by pulleys f, f, and receives its motion
(as already described in reference to Figs. 1, 2, and 3) from the cross rail U,
which slides between two antifriction pulleys h, h, fixed on the rail or bar F.
By moving the carriage J upon the rails K, K, the rail F is moved laterally,
and communicates its motion by means of bands to the pulleys R, S, and
thence by the bands or to the slide E at the projection U. j is the tracer;
I, I, the transversal rail; B, the table; Y, the turn-table; Z, the stepping
wheel, the worn being omitted; p, the treadle to remove the diamonds or
tracers from the cylinder.
Fig. 13 shews our improved application of levers to the machine above
described. A a, A a, is the frame; A, the headstock; C, the maundrill, with
its pulley P; Pa is the worm wheel and index; X, X, the antifriction
pulleys; E, diamond or tracer slide; Ga, the rods or rails on which E slides;
W is a bracket or diamond holder; N is a lever slide, fixed by means of
a screw 1 upon the slide 2 (the nut being fixed upon the slide N); a is a bush
or socket, having a set screw to tighten the lever O. At the centre of the
lever O is a connecting rod or fiddlebow, with a band passing round the
pulley P; and at the end of the lever O is another connecting rod or fiddle-
bow, with a band passing round the pulley M; m and Q are pulleys to support
the connecting rod. The pulley M receives its motion from the cross carriage
J, K, I, and from the pulleys L, L, M, as shown in Figs. 11 and 12. The pulley
M transmits its motion through the connecting rod or fiddlebow to the lever O,
which motion is transferred to the pulley P. or maundrill C by means of the
3

page_text: connecting rod or fiddlebow o; attached to the centre of the lever O. 5 is.
another lever slide, fixed by the screw 3 to the slide 4, the nut being fixed on
the slide 5. e is a bush or socket, having a screw to tighten the lever p;
Ta is a rod connecting the lever p with the diamond or tracing slide E:
at the projection U; at f on the lever p is fastened the band which passes
round the pulleys S, S, on the same shaft with the pulleys R, R, which pulleys
R, R, receive their motion from the slide F and cross carriage J upon the rail
K, K, see Figs. 11 and 12, this motion being communicated through the
pulleys R, R, S, S, to the lever p, and thence through the connecting rod Ta
to the diamond slide E. To determine the extent of lateral motion it is
necessary to support the lever p by a pin or stud in the hole 6 or 7, then
slacken the screw on the bush or socket e, and raise or lower, the slide 5, as.
required, by turning the. screw 3; then tighten the screw on the bush e,
withdraw the pin or stud 6 or 7, and the machine will be ready for work. The
bushes a and c are supported on centres. To reverse the lateral motion of the
diamond or tracer slide, the lever p must be raised and fixed to the upper band,
and the connecting rod T a must be raised and fixed to the end of the piece u.
The lever O is regulated in a similar manner.
It may be desirable to apply only one lever, in which case; in order to dis-
connect the lever p, it is loosened from the band, and connecting the rod Ta
and the projection .Ua on the diamond slide E, is connected with the band at u
or v. If the lever o is to be disconnected, it is loosened from the pulleys M
and P, and the pulley M is connected with a pulley P, as shewn in Figures,
11 and 12.
Figs. 14, 15, and 16 shew. an improved beam or bar for angling the
diamond or tracing slide on the cylinder. G is the bottom beam, working on a
centre fixed to the table B; to the beam G' are bolted or screwed the pillars
Va, Vav,, are screws for raising or lowering the pillars.V, V, which support
the beam G, a, and the slide E. At each end of the bar or beam G is a curved
slot, forming part of a circle,' which allows the beam G to be moved into a
diagonal position, and refastened by means of bolts or screws. It is evident:
that by angling the beam G, the diamond slide E; which rests upon it, will be
angled likewise.
:
Fig. 17 is a sectional elevation, and Fig. 18 is a front elevation, of another
variation of our improvements. A, A, is the frame, to which the table B, the
cross beam G, and the boxes X, X, for the antifriction bowls, are bolted or
screwed; C, C, is the maundrill, upon which is fixed the cylinder D; at each
end of the maundrill C is fixed a pulley p, one of which is grooved to fit an
antifriction bowl 1. The pulleys p, p, rests upon the antifriction bowls 1, 2,

page_text: 3, and 4; the antifriction bowls 1 and 4 are fixed on a shaft C, Ca, upon
which is fixed a pulley or pulleys, or a wheel or wheels P, P. The antifriction
bowls 1, 2, 3, and 4 are supported in moveable boxes X, X, having screws to
raise or lower, the wheels or pulleys P, P, upon the rails I, I. The surfaces of
the rails I, I, and the pulleys P, P, are milled to correspond with each other,
or one surface may be convex and the other concave, or one surface may be
milled and the other surface covered with caoutchouc or other similar sub-
stance; or the rails I, I, may be racks, and the pulleys P, P, wheels, so that
by moving the cross carriage J K K, I I, transversely, a partial rotary
motion will be given to the wheels or pulleys P, P, the bowls 1 and 4, the
pulleys p, p, on the shaft or maundrill C, and thus to the cylinder D; E is the
diamond or tracer slide resting on the pulleys V, V, V, as described in Figs. 1,
2, and 3; W is the bracket supporting the diamond, or tracer lever Wa; G is
the cross beani which supports the diamond slide; and to which is fixed the
bracket:y, supporting the pulleys R, S... Round the pulley S passes a band to
the pulleys, on the beam G; this band is connected with the diamond slide E,
at the projection U, by the slotted stud u,. as seen in Fig. 18. A band passes
also round the pulley R, and is fastened to the slide F'by means of the screws
9,9; the slide F rests on the pulleys ff. To the rail or slide F are fixed
antifriction pulleys h, h, between which slides the rail H, fixed on the carriage
J, as before described. It is evident that when the carriage J. is moved
laterally, it will communicate a lateral motion through the rail the rail 1,
the band g, the pulley R, and the pulley S, to the diamond slide E at the pro-
jection U, by which movement of the slide E, the diamonds or gravers Wa
move also in a lateral direction. The lateral motion of the diamond slide
may be reversed by removing the slotted stud u, as before described.
Pa is a
stepping wheel, attached to the pulley or wheel P in the usual manner; p is
the treadle, and the lever, for lifting the tools off the cylinder.. The rails
I, I, rest on pulleys L, L, L.
Fig. 19 shews the application of a double rack or milled surface to transmit
a lateral motion to the diamond slide E through the wheel S. U is a slotted
plate fixed to the diamond slide E; Ua is a slotted plate fixed to the rack r.
By raising the rack r, as shewn in Fig. 20, the lateral motion will be reversed.
-The slotted plates are fastened together by a screw.
:
Fig. 20 shews the application of 'our improvement for stepping or setting
the diamond slide E to the surface of the cylinder. o is a slide attached to the
slide E, as described in Figs. 4 and 5; the slotted plate U is fixed to the slide
o, or may be part of it; s is the screw; i is the index.
Fig. 21 is anotlier improved method of imparting retary motion to the

page_text: cylinder. B is the table; I, K, are parts of the compound carriage; C is the
On the maundrill C is fixed a
index wheel Pa. The wheel or
maundrill, which supports the cylinder D.
wheel or pulley P. to which is attached an
pulley P receiving its motion from the cross rail i or sec Figs. 17 and 18,
imparts it directly to the cylinder.
Figs. 22 and 23 represent a mode of tracing designs from a cylindrical
surface, as applicable to our improved machines. l' is a pulley or wheel
fixed on the maundrill C; E is the diamond or tracer slide, having a pro-
jecting plate U. 1 is the pattern roller, on the shaft of which is fixed a wheel
or pulley 2; 4 is a spring fixed to the shaft of the roller 1, and having a tooth
fitting in the stepping wheel 5. The pattern roller is supported on centres 6
and 7. On the centre shaft 6 is fixed the stepping wheel 5, upon which shaft 6
is also fixed a pulley or wheel Pa, which drives the pulley P on the maundrill
C, by means of a band, chain, or wheels. 3 is a wheel or pulley, with a shaft
and handle to turn the pattern roller 1, by means of the wheel or pulley 2. 8 is
a slide, which supports the centre 7; 10 is a lever, fixed in a moveable centre,
and supported on a bracket 9. The lever 10 is connected by a pointer with
the pattern roller 1, and with the diamond slide E at U. It will be seen
that any motion given to the lever 10 by the revolution of the pattern roller 1
will be transmitted in certain defined proportions to the surface to be engraved,
which is fixed on the maundrill C. By substituting for the pattern roller 1,
excentric plates or cups, other and similar effects may be obtained.
We wish to observe that when the design has to be transferred to a flat
surface instead of to a cylindrical oue, as shewn, the said flat surface must be
fixed to a frame supported by antifriction bowls, or on rails, to which frame a
transverse motion is given in the manner described for moving the slide E.
Having thus stated the nature of our Invention, and described the manner
of performing the same, we wish it to bo understood that we do not limit our-
selves to the details set forth; but that what we claim is,-
First, the improved machinery for giving a lateral motion in both directions
to the slide E, and a partial rotary motion to the maundrill C, as shown and
described in reference to Figs. 1, 2, and 3.
Secondly, the apparatus, shewn in Figs. 4 and 5, for setting the too!
slide E.
Thirdly, the apparatus, shewn in Figs. 1, 2, 3, 6, 7, 14, 15, and 16, for
setting the tools at an angle with the roller or cylinder or other surface to bo
engraved.
Fourthly, the revolving table to which the pattern is fixed, as shewn and
described in reference to Figs. 2, 3, 8, 9, and 10.

page_text: Fifthly, the application of a scale to the revolving and to the stationary
table, or to either one or the other, for dividing the engraving lines, as shewn
in Fig. 3, or any modification of such scales.
Sixthly, the compound slide forming the table for the design, as shewn
in Figs. 8 and 9, and the machinery shewn in combination therewith for
actuating it.
Seventhly, the improved combination of machinery for actuating the revolving
table, as shewn in Fig. 10.
Eighthly, the improved combination of machinery, shewn in Figs. 11 and 12,
for giving a lateral motion in either direction to the tracer or diamond slide E,
and a partial rotary motion to the cylinder D.
Ninthly, the application of levers, each with a moveable fulcrum, for acting
on the tracer or diamond slide and cylinder, as shewn in Fig. 13.
Tenthly, the improved combination of machinery for giving a lateral motion
in either direction to the slide E, and for supporting and moving the cylinder,
as shown in Figs. 17 and 18.
Eleventhly, the improved arrangement of parts for reversing the direction
of motion of the slide E, as shewn in Figs. 19 and 20.
Twelfthly, the improved mode of giving a partial rotary motion to the
cylinder, as shewn in Fig. 21.
And, lastly, the improved combination of machinery, shewn in Figs. 22 and
23, for transferring the design from a cylinder, cup, or excentric to the copper
roller or other article to be engraved.
In witness whereof, I, the said Joseph Lockett, have hereunto set my
hand and seal, this Thirty-first day of December, in the year of our
Lord One thousand eight hundred and fifty-seven.
JOSEPH LOCKETT. (L.S.)