auu Driving TWO or More Coupled Rotating or Reciprocating Calender Rolls, which may be Used for Glazing and Finishing Paper, Card Board, Mill Board, Paper Wads with Intervening Polished Plates or other Materials.
Year: 1885

page_text: auu Driving TWO
or More Coupled Rotating or Reciprocating Calender Rolls,
which may be Used for Glazing and Finishing Paper, Card
Board, Mill Board, Paper Wads with Intervening Polished
Plates or other Materials.
I WILLIAM HARTLEY of 24 Devonshire Street Higher Broughton, Salford
Manchester, in the County of Lancaster, Engineer do hereby declare the nature
of my invention for IMPROVEMENTS IN THE MODE OF WEIGHTING AND DRIVING
TWO OR MORE COUPLED ROTATING OR RECIPROCATING CALENDER ROLLS, WHICH
MAY BE USED FOR GLAZING AND FINISHING PAPER, CARD BOARD, MILL BOARD,
PAPER WADS WITH INTERVENING POLISHED PLATES OR OTHER MATERIALS to be
as follows:-
I construct a calender with three rolls coupled together by wheels with their
centres in or near a vertical line, the middle roll centres may be somewhat fixed
but the top and bottom rolls can be raised or lowered and adjusted so as to leave
suitable spaces between them and the middle roll for the materials to pass between
them.
The weight or pressure required to be brought against the roll centre bearings or
steps I accomplish by an arrangement of levers and weights in the following
manner.
The underside of the bottom roll centre bearings have each a recess into which
are introduced the upper ends of two strong screws, and their lower ends pass
through holes formed in the centre of two swivel joints which have each two
trunnions the screws have each two checknuts placed one above and the other below
the swivel joints & are used for adjusting the position of the roll centre bearings.
or steps.
The trunnions of the swivel joints rest within suitable recesses formed on the
top edges or upper part of two forked or double ended levers, the proportion of the
leverage of the two bottom levers may be as two to one or more or less, so as to
equalise the pressure against the top and bottom roll centre bearings or steps, the
unequal leverage in this arrangement compensates for the weight of the bottom
roll acting downwards from the middle roll, whilst the weight of the top roll acts
also downwards but towards the middle roll, without this compensation in the
leverage there would be an unequal pressure upon the roll centres somewhat equal
to the united weight of the top and bottom rolls. The short or forked ends of.
these levers may have pins to pass through them and rest on fulcrum fixings.
PS31

page_text: Their longer ends are coupled by pins to two upright strong rods with suitable
coupling ends, these rods may pass within and through the calender sides when
they are cast hollow. At the longer ends of these two bottom levers are two set-
scrows with checknuts which are used to adjust the upward action of the two
levers, by the adjustment of the ends of these levers the upper ends of the two
upright rods become fulcrums for two other levers which are placed a little above
the top of the calender sides. The two top levers are used for bringing additional
pressure against the bottom roll centre bearings or steps also for bringing pressure
upon the top roll centre bearings or steps.
To the centre bearings of the top roll are attached two strong screws each of
which have four checknuts, two of which connect and secure the screws to the
upper part of the top roll centre bearings and are used for lifting the top roll and
for conveying pressure thereon, the upper part of these screws pass through holes
formed in the centre of the two swivel joints each of which have two trunnions
The trunnions pass through and rest within suitable holes formed in the sides of
the two levers which may be made double for the conveniance of introducing and
combining the swivel joints and the levers together; the other two checknuts on.
the upper part of the strong screws are placed one above and the other below the
swivel joints and are used to adjust and secure the top roll centre bearings and thus
regulate the space between the top and middle rolls. There are also inclined planes
placed under the top roll centre bearings which are adjustable by screws by this
arrangement the top roll is prevented from coming too near the middle roll and an
uniform space can be secured between them when so required-The arrangement of
the inclined planes together with the top roll centre bearings and the strong screws
which are secured to the swivel joints in the top levers become fulcrums for the. top
levers when they are acting in connection with the two bottom levers for bringing
an upward pressure against the bottom roll. By this arrangement of levers &c the
fulcrums change and the top levers become alternately levers of the first and second
order according to the introduction of the paper wads or other materials between
the top and middle and between the middle and bottom rolls. The proportion of
the leverage of the two top levers may be as four or five to one or any other
suitable and conveniant proportion. The short ends of the two top levers are
coupled by pins to the top ends of the two upright rods and their longer ends are
also coupled by pins to two down rods, the lower ends of which are also coupled
by pins to two cross levers of the second order, which may be placed in a horizontal
position and parallel with the rolls or otherwise to suit the circumstances and
construction of the calender. The two botton cross levers may be parallel to each
other, but somewhat apart so that two double links may be moved thereon when an
adjustment by leverage is required. The fulcrums for the cross levers may be at
the outer edge of the calender sides and move on centre pins, they may also have
notches cut at equal distances on their upper edges for the two double links to rest
therein.
There is also a cross bar with notches on its underside corresponding with the
notches on the top edges of the two cross levers.
The ends of the cross bar pass through the double links on which the cross bar
rests, and from the middle of the length of this cross bar is suspended a rod that
sustains the weights which load all the roll centres. By moving the links along
the cross levers and cross bar the leverage may be increased or decreased.
The weights that are suspended from the cross bar may also be increased or
decreased. By the described arrangement of levers &c, one weight may load all
the roll centres with an uniform pressure when the materials are passing between
the rolls. The two cross levers give additional power for loading the roll centres
and also admit of one weight being used for producing pressure upon all the roll
centres.
The arrangement of mechanism by which a continuous rotary motion will drive
reciprocating calender rolls that are coupled together by wheels may be described
es followe

page_text: To one end of an uniformly rotating shaft is fixed a crank which has a strong
crankpin and to which is coupled one end of a connecting rod, and the other end
of the connecting rod is coupled to an adjustable centre of a strong vibrating lever,
the bottom end of which has a centre that vibrates in two pedestals, at the top of
the vibrating lever is a fixed centre to which is connected another connecting rod
or a strong double link, the other end of which is connected to a strong sliding
rack which gears with the teeth of the driven wheel on the calender roll centre.
The traverse of the sliding rack can be varied by the adjustment of the moveable
centre in the vibrating lever and the reciprocating motion of the rolls may be
increased or decreased to suit the length and width of the paper wad or other
material that have to be pressed. There are also moveable tables at the front and
back of the calender which are coupled together and can be moved to or from the
junction of the two rolls. When a three roll calender is driven by a reciprocating
motion two sets of tables are employed. When a paper wad or other materials are
placed upon a table and it is pushed towards or against the two rolls at the com-
mencement of a stroke or motion produced by the reversing of the rolls they are
drawn in and passed between them and delivered on the other table at the other
side of the calender. When the calender rolls begin to move in an opposite
direction and the table is drawn towards the rolls the wad or other materials are
reintroduced between the calender rolls, and this operation can be repeated as often
as may be required without having to stop the calender.
The materials may be passed to and fro between the rolls without passing entirely
from between them by a proper adjustment of the length of the traverse being
given to the sliding rack and passed to and fro as often as may be deemed
necessary without the pressure being taken from off the rolls or stopping the
motion of the calender. But when they are sufficiently pressed they may be
delivered upon the table by lowering the moveable centre in the vibrating lever
and thus the traverse of the sliding rack and the rolls will be increased, and when
raised decreased. A similar result to tho above may be obtained by the driving
crank having an adjustable crankpin with one end of a connecting rod coupled
thereto and its other end having a toothed rack to gear direct with the wheel
that drives the rolls of the calender, and in order to retain the rack and wheel in
a proper depth of gear, there is a suitably formed guide that vibrates upon the
centre of the driven wheel. By adjusting the crankpin the traverse of the con-
necting rod rack and wheel into which it gears can be increased or decreased as
may be required.
Instead of. employing a toothed rack a suitable strong chain may be employed
by passing it round a strong pulley fixed upon one end of the calender roll centre
and the two ends of the chain being fixed to the opposite ends of a plane sliding
bar which slides upon suitable fixings. The traverse or motion of the rolls can be
varied as before described. A variation in the action or motion of the rolls when
driven by a crank motion may be accomplished as follows. The chain pulley for
driving the calender rolls may be bored excentric and keyed upon the calender
roll centre the pulley may be either circular or elliptical or even cam shaped and
arranged in the most suitable position when the crank is at the middle of its
traverse or stroke and by these means the motion of the rolls may be somewhat
retarded and therefore cause the motion of the rolls to be more uniform when so
required.
The mode of weighting the calender rolls herein described is applicable to the
calender for which provisional protection was granted to me & dated 2nd Feby
1885, N° 1412.

page_text: or More Coupled Rotating or Reciprocating Calender Rolls,
which may be Used for Glazing and Finishing Paper, Card
Board, Mill Board, Paper Wads with Intervening Polished
Plates or other Materials.
I WILLIAM HARTLEY of 24 Devonshire Street Higher Broughton, Salford,
Manchester in the county of Lancaster, Engineer do hereby declare the nature of
my invention for IMPROVEMENTS IN THE MODE OF WEIGHTING AND DRIVING TWO
OR MORE COUPLED ROTATING OR RECIPROCATING CALENDER ROLLS, WHICH MAY BE
USED FOR GLAZING AND FINISHING PAPER, CARD BOARD, MILL BOARD, PAPER
WADS WITH INTERVENING POLISHED PLATES OR OTHER MATERIALS and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :—
My mode of weighting a calender by levers and weights that has three coupled
rotating rolls (instead of by hydraulic pressure as drawn and described in my
Specifications, and for which provisional protection was granted to me N° 1412 and
dated the 2nd Feby 1885,) and my mode of driving and weighting two or more
coupled reciprocating calender rolls will be hereinafter described. The top and
bottom rolls (of a calender with three coupled rotating rolls) may be raised and
lowered and adjusted so as to leave suitable spaces between them. The weight or
pressure required to be brought against the roll centre bearings and journals
I accomplish by an arrangement of levers and weights hereinafter described. In
order that my improvements may be more clearly and more easily understood
I will describe the action of the levers and weights when the materials are passing
between the middle and top rolls, and the middle and bottom rolls, the strong
screws with their nuts and swivel joints which are combined with the double
levers act direct upon the upper side of the top roll centre bearings and journals,
the centre pins that couple the shorter ends of the double levers to the upper ends
of the rods that pass through the interior of the calender sides become fulcrums and
the longer ends of the double levers are connected by centre pins and rods direct
to the cross levers and weights, hence by this arrangement the weighted lever
pressure is transmitted to the top roll centre bearings and journals. The double
Jevers being thus arranged with their fulcrum pins at one of their extreme ends
form levers of the second order. But when the materials are passing between the
middle and bottom rolls, the strong screws with their nuts and swivel joints which
are connected to the forked levers press direct against the underside of the bottom
roll centre bearings and journals. One end of each of the forked levers is connected
by a fulcrum pin to a fulcrum fixing and their other ends are coupled by pins to
the lower ends of the strong rods that pass through the interior of the calender
sides and their upper ends are coupled by fulcrum pins to the shorter ends of the
double levers, and when the deep nuts and the swivel joint trunnions which are
combined to the double levers begin to rest upon the top of the calender sides, the
deep nute and swivel joint trunnions being between the outer ends of the double
levers they form fulcrums and the double levers become levers of the first order.

page_text: The general arrangement of levers and weights remove nearly the whole of the
usual strain on the calender sides to the strong rods that pass through the interior
of the calender sides and their action is somewhat similar to the jointed parts of
ordinary nut crackers.
I will now describe the drawings which will illustrate the construction and
combination of levers &c for weighting a rotating calender with three coupled rolls.
The underside of the bottom roll centre bearings a have each a recess into which is
introduced the upper ends of two strong screws b and are secured thereto by pins
that pass through them clearly shewn in Fig. 3 sheet 1. The lower ends of the
screws pass down through the holes formed in the centre of the swivel joints c,
which have each two trunnions e, and the strong screws have each two nuts f
and d, the upper nut f is a deep one and is turned on its periphery and an index
cut thereon and numbered to enable an accurate adjustment to be made when the
space between the upper surface of the bottom roll and the undersurface of the
middle roll is being formed, these nuts may be moved and adjusted by a suitable
key or they may have holes drilled in their peripheries and be moved and adjusted
by a tourny-key (a bar which has its ends turned and fitted to the holes). The
bottom nut & is a lock nut that screws against the underside of the swivel joint c
and locks the nut f and the swivel joint c together. The swivel joint trunnions e
rest within the recesses formed on the upper edges of the forked lever g, a plan of
which is shewn in Fig. 4 and a side elevations in Figs. 1 and 3. One end of the
forked lever g is connected by a fulcrum joint pin to a fulcrum fixing h¹ and its
other end is coupled by a joint pin to an upright rod i, that passes upwards
through the interior of the calender, side D when cast hollow, near to the end of
the forked lever there is a set screw j the upper end of which rests against the
underside of the arched part of the calender side when the materials are passing
between the middle and the top rolls. By this arrangement the height to which
the end of the forked lever g may rise can be adjusted. Instead of employing set
screws the ends of the forked levers g may come in direct contact with the under
surface of the arched part of the calender side. And by adopting this method the
end of the forked lever is prevented from rising too high and a greater surface
bearing is obtained for the ends of the forked levers g. The weight of the top roll
acts downwards and adds additional pressure to the action of the weighted levers &c
which act against the top roll centre bearings and journals, and the weight of the
bottom roll acts also downwards, but produces an opposite result deminishing
the effect of the weighted levers equal to the weight of the bottom roll, hence the
gravitating effect of the two rolls produces a result equal to the united weight of
the top and bottom rolls. Therefore the forked levers g have not only to transmit
the weighted lever pressure upwards against the bottom centre bearings and
journals, but their leverage requires to be so proportioned as to compensate for the
total or gross weight of the top and bottom rolls, which is accomplished by a
suitable distance from the centre of the swivel joint trunnions e to the centre of
the fulcrum pin h, and from the centre of the trunnions e to the centre of the joint
pink, that couples the forked levers g to the upright rods i that pass upwards
through the interior of the calender sides, and when correctly proportioned will
produce an equal pressure against the top and bottom roll centre bearings and
journals.
The top part of the calender sides are bored so as to act as guides for the strong
screws to pass through them, the lower ends of which pass through holes formed
in the upper part of each of the top roll centre bearings, each of which has a recess
shewn in Fig. 3 by dotted lines for a nut to rest therein, the lower ends of the
screws are secured to the bearings by the nuts that are placed in the recesses and
are screwed upon the lower ends of the strong screws 2 and the nuts above the
bearings act as lock nuts to secure them together. But a much more simple method
of combining the top roll centre bearings a¹ to the strong screws is by introducing
the lower ends of each screw into a suitable hole formed in the top of each bearing
and drilling a hole through them and fitting a turned pin therein as shewn in

page_text: Figs. 1 and 3 which prevents the screws from moving when the deep nuts f¹ at
the top of the calender sides are moved either to raise or to lower the top roll.
The deep nuts f¹ that are placed at the top of the calender sides are turned and one
face rests thereon when the materials are passing between the middle and bottom
rolls, and are only lifted therefrom whilst the materials are passing between the
middle and top rolls, their peripheries are divided to form an index and numbered
to enable accurate adjustments to be made when the top roll requires to be adjusted,
the upper parts of the strong screws pass through the holes formed in the centre
of the swivel joints c and lock nuts placed above it, by the deep nut c¹ the top
centre bearings can be raised or lowered and accurate spaces adjusted between the
under surface of the top roll and the upper surface of the middle roll. Above
the top of each calender side there are two levers m with holes formed in their
sides to admit the trunnions e¹ of the swivel joints c¹ also the joint pins of the
upright rods i and down rods o to pass through, also holes for the bolts. The upright
rods are coupled to the short ends of the double levers m by a joint pin n and
the longer ends are coupled by joint pins to down rods o, and the two levers are
secured together by bolts that pass through hoops placed between them, and thus
forin double levers with suitable spaces for admitting the swivel joint c¹ and the
ends of the upright rods i and and the down rods o. This arrangement of double
levers are stronger and more conveniant for introducing and combining the swivel
joints &c together.
The proportion of the levers may be as five or six to one, or any other suitable
proportion. The lower ends of the down rods o are screwed into screw tapped
joints p and are coupled by joint pins to two cross levers q and q¹ which may be
placed in a horizontal position and also fixed parallel with the calender rolls and
parallel with each other, but somewhat apart, so that the two open links r and
may be moved freely thereon, when an increase or decrease of the leverage is
required for increasing or decreasing the weighted lever pressure on the roll centre
journals. These cross levers q and ql may also be in the proportion of six to one
but adjustable to other proportions. The short ends of the two cross levers q and q'
are connected by fulcrum pins s to the fulcrum fixings cast or fixed to the outer
flanch part of the calender side base, the upper edge of each cross lever may have
notches for the upper ends of the open links n and n¹ to rest therein, or open flat
sided links may be adopted and have pins to pass through them and the cross levers.
There is also a suitable cross bar t the under edges of which have notches or holes
for centre pins to pass through to couple the links thereto, In the middle of the
length of the cross bar t there is a centre pin hole for the pin u to pass through to
couple the upper end of the weight-suspension rod v thereto, the weights w are
placed upon the lower part of the suspension rod, and one set of weights thus
suspended will alternately weight the top and bottom roll centre journals with an
equal and an uniform pressure, if the levers have been accurately proportioned.
When a three roll calender is driven by a reciprocating motion two sets of tables
are employed.
To make my complete Specification agree with the descriptive order of my
provisional Specification Fig. 7 sheet 2 will have to be described before Figs. 5
and 6 sheet 1, this diversion from the drawing sheet 1 arises from Fig. 7 sheet 2
not being suitable for being drawn in consecutive order on sheet 1.
To one end of an uniformly rotating shaft there is fixed a disc-crank a, with a
strong crank pin b to which is coupled one end of a connecting rod c, the other
end of which is coupled to a moveable and adjustable centre pin d which is com-
bined with a strong vibrating double lever e, and into the lever boss there is fitted
a centre that has two journals f that vibrate in the two pedestals g, at the top of
the lever there is fixed a centre h and to it there is connected another connecting
rod, the other end of which is connected to a sliding rack; by a pin that passes
through the side of the rack j, and the rack gears with the flanched strong wheel k
that is keyed upon the bottom roll centre. The traverse of the rack may be
increased or decreased by lowering or raising the moveable centre pin d, and the

page_text: reciprocating holes for centre pins to pass through to couple the links thereto, In
the middle of the length of the cross bar t there is a centre pin hole for the pin u
to pass through to couple the upper end of the weight suspension rod v thereto the
weights w are placed upon the lower part of the suspension rod and one set of
weights thus suspended will alternately weight the top and bottom roll centre
journals with an equal and an uniform pressure, if the levers have been accurately
proportioned.
When a three roll calender is driven by a reciprocating motion two sets of tables
are employed.
To make my complete Specification agree with the descriptive order of my
provisional specification Fig. 7 sheet 2 will have to be described before Figs. 5
and 6 sheet 1, this diversion from the drawing sheet 1 arises from the Fig. 7 sheet 2
not being suitable for being drawn in consecutive order on sheet 1.
To one end of an uniformly rotating shaft there is fixed a disc crank a, with a
strong crank-pin b to which is coupled one end of a connecting rod c, the other end
of which is coupled to a moveable and adjustable centre pin d which is combined
with a strong vibrating double lever e, and. into the lever boss there is fitted a
centre that has two journals that vibrate in the two pedestals g, at the top of the
lever there is fixed a centre hand to it there is connected another connecting rod Z,
the other end of which is connected to a sliding rack j by a pin that passes through
the sides of the rack j; and the rack gears with the flanched strong wheel & that is
keyed upon the bottom roll centre, The traverse of the rack may be increased or
decreased by lowering or raising the moveable centre pin d, and the reciprocating
motion of the rolls are thus varied, and the top and bottom rolls are coupled together
by the wheels k and k¹.
The top roll may be weighted in a similar manner to Figs. 1, 2 and 3, sheet 1,
with the exception that the rods that pass through the interior of the calender
sides D are connected to the lower part thereof by a pin that passes through them
instead of being coupled to forked levers. This mode of weighting the top roll of
a calender removes the strain from off the calender sides to the rods that pass
through their interiors. There are two moveable tables i and situated, one on
the front and the other at the back of the calender for the reception of the materials
that require to be pressed and for introducing the materials between the recipro-
cating rolls. The tables are coupled together by wheels or any suitable portion of
a wheel, such as a quadrant m and m¹ as shewn by the dotted lines Fig. 7. The
wheel quadrants m and m¹ are fixe upon the ends of the crank lever shafts (as
described in my specifications N° 1412 and dated the 2nd Feby 1885) which cause
the tables to move simultaneously in opposite directions towards or from each
other, the crank levers n and n on the shaft may be coupled to the underside of
the tables by links o and o¹ shewn by the dotted lines, or the upper ends of the
crank levers may move between two suitable brackets which may project down-
wards from the underside of the tables. By this arrangement of the moveable
tables, the paper wads or other materials may pass clear through from between the
rolls, and be again reintroduced when the rolls have been reversed. This operation'
of passing and repassing the materials between the rolls of reciprocating calenders
may be repeated as often as may be required.
Fig. 5 sheet 1 is a side elevation of a reciprocating calender with two coupled'
reciprocating rolls, that may be driven by a continuous rotary motion.
To one end of a rotating shaft there is keyed a crank a which may have either
a fixed or a moveable and adjustable crankpin b to which is coupled one end of a
connecting rod c, the other end of the connecting rod has a strong rack with
flanches the depth of half the length of the cogs, by which they are strengthened,
and also assist in preventing the flanched wheel d (which is keyed upon the bottom
roll centre) from becoming too deep in gear. The rack is maintained in its proper
depth of gear by a fixing e, e, that vibrates on the bottom roll centre faud it has
also a suitable bearing surface for the back part of the connecting rod to slide
thereon, and to retain it in its proper depth of gear with the flanched wheel d.

page_text: The manner of weighting the top roll centre journals is similar to the method
already described in connection with Fig. 7 sheet 2, and also illustrated by Figs. 1,
2 and 3, sheet 1. The arrangement of the moveable tables is similar to those
illustrated and described in connection with Fig. 7, sheet 2, and are also somewhat
similar to those described and illustrated by Figs. 1, 2 and 3 sheet 1. By varying
the excentricity of the crankpin the motion of the rolls can be increased or
decreased, and the construction of the tables will allow the paper wads or other
materials to be manipulated to suit the requirements of those in charge of the
calender.
Fig. 6, sheet 1 is a side elevation that illustrates a method of driving a calender
that has two coupled reciprocating rolls.
Upon the bottom roll centre a there is keyed a chain pulley b which has suitable
projections on its periphery for the open spaces formed in a strong chain to adhere
thereto when wrapped round it. At the other side of the calender there is a spur
wheel c keyed on the bottom roll centre also another wheel c¹ keyed on the top roll
centre and they gear together.
The driving chain d is wrapped round the chain pulley b and its ends are
secured to the two ends of the sliding bar which may slide upon suitable fixings
secured to the calender in a similar manner to the sliding rack illustrated by Fig. 7
sheet 2, and may be moved or driven in a similar manner by a rotating shaft,
crank, connecting rods, and lever, and the tables may also be worked in a similar
manner, instead of using a sliding bar a strong vibrating double lever k may be
adopted as shewn by Fig. 6 sheet 1:
The bottom of the vibrating lever has a centre & with two journals that move
within two pedestals. Near the top of the vibrating lever there is a slot i with a
bush and a centre pin m secured thereto and by raising or lowering the centre pin
and bush the motion of the rolls can be decreased or increased, the top part of the
vibrating lever has a suitable convex flanch, to the outer ends of which the two
ends of the chain d and d¹ are secured. The chain pulley b is bored excentric and
keyed on the bottom roll centre a, and when the lever is in the middle of its
traverse the deep part of the excentric pulley b is direct over the centre of the
vibrating lever k as shown by Fig. 6 sheet 1. This arrangement causes the motion
of the rolls to be more uniform. An elliptical or cam form of pulley may be used
for varying the motion of the rolls when the calender is driven by a rotating shaft,
having a crank and a connecting rod coupled direct to the vibrating lever, and if
the upper part of the vibrating lever has a segment with flanched cogs it may gear-
direct into the spur flanched wheel keyed on the bottom roll of the calender shewn
by Fig. 5 sheet 1, and Fig. 7 sheet 2.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed I declare that what
I claim is
(1.) The mode of weighting by levers and weights two or more coupled rotating
or reciprocating calender rolls, as drawn and described in reference to Figs. 1, 2, 3,
4, 5, 6 and 7.
(2.) The mode of driving two or more coupled reciprocating calender rolls as
drawn and described in reference to Figs. 5, 6 and 7.
(3.) The mode of coupling and moving the tables of reciprocating calenders as
drawn and described in reference to Figs. 5, 6 and 7.
Dated 17 J
1007