Improvements in or relating to Envelope Making Machines.
Year: 1899

page_text: Date of Application, 17th Oct., 1899-Accepted, 13th Jan.,
1900
Improvements in or relating to Envelope Making Machines.
A, communication from SAMUEL CUPPLES, of 3673, West Pine Street, St. Louis,
Missouri, United States of America.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of London,
Chartered Patent Agent, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
The present invention relates to certain improvements on the machines shown
and described in Letters Patent No. 20572 of 1890.
The present invention consists in features of novelty hereinafter fully
described and pointed out in the claims.
Fig. I is a side elevation of the improved machine.
Fig. II is a top or plan view.
Fig. III is a vertical longitudinal section taken on line III-III, Fig. II.
Fig. IV is an enlarged detail top view.
Fig. V is a perspective view of the mechanism for giving the edge folds to
the paper.
Fig. VI is a detail perspective view of one of the supports for the pot that
contains the sealing paste or gum.
Fig. VII is a detail perspective view of the pot that contains the sealing gum.
Fig. VIII is a detail vertical section taken on line VIII-VIII, Fig. II, the
roller over which the paper passes being shown in the elevation.
Fig. IX is a section taken on line IX-IX, Fig. II, and representing the
spindle for supporting the roll of paper.
Fig. X is a section taken on line X-X, Fig. II and representing the guide
for directing the paper accurately to the machine.
Fig. XI is a sectional view taken on line XI-XI, Fig. XV and illustrates
the combined paster and folder and its support.
Fig. XII is a detail perspective view illustrating one of the cams that move
the folding blade of the paster.
Fig. XIII is a detail sectional view taken on line XIII-XIII, Fig. XV.
Fig. XIV is a like view taken on line XIV-XIV, Fig. XV.
Fig. XV is a front view of the combined paster and folder.
Fig. XVI is a face view of the combined paster and folder in a modified
form.
Fig. XVII is a view part in elevation and part in section showing the
mechanism for giving the bottom fold to the envelope and for directing the
corners of the web of paper upwardly when the web has been severed by the
knife.
Fig. XVIII is an elevation illustrating the stationary (as distinguished from
the revolving) knives for cutting the corners off the web of paper that were
formed by the knife in cutting out the flap of the preceding envelope.
Fig. XIX is an enlarged sectional view taken on line XIX-XIX, Fig. XVIII.

page_text: Fig. XX is a like view taken on line XX-XX, Fig. XVIII.
Fig. XXI is a detail sectional view of the central part of the machine.
Figs. XXII & XXIII are diagramatic views illustrating the operation of the
folding, cutting, pasting and transmitting mechanism.
"
Fig. XXIV is a detail perspective view of the paper web from which the
envelope is made.
Fig. XXV is a perspective view of the envelope before the flap is turned
down.
Fig. XXVI is a perspective view of the completed envelope.
Fig. XXVII is a perspective view of an open envelope or an envelope not
designed to be sealed and which my machine is capable of producing.
Referring to the drawings:
1 represents the main frame of the machine at one end of which the roll of
paper 2 from which the envelope are made is located on arms or brackets 3
extending from the frame 1. The roll 2 is supported on a spindle 4 (see
Fig. IX) the ends of the spindle fitting in notches formed in the brackets 3 so
that the spindle is free to revolve when the machine is in operation. The
spindle has a threaded end 5 upon which fits an internally threaded cone 6,
and a notched end 7, upon which fits a cone 8 provided with a spring actuated
dog or pawl 9 that engages with the notches.
These rolls of paper are sometimes irregularly wound so that it becomes
necessary to furnish some means to direct the web of paper accurately to the
machine to enable the different parts of the machine to perform their functions
properly. To accomplish this end and at the same time provide a tension which
will prevent the overrunning of the paper, an armı 10 (see Figs. I, II, and III)
is employed having bearings 11 through which the spindle 12 of a loose
roller 13 passes as shown in Fig. VIII. The outer end of the arm 10 is per-
forated and split to provide a clamp 10 controlled by a bolt 10. This clamp.
is adapted to receive the shank 14 (see Fig. X) of a block 15 through which
an adjustable rod 16 passes and in relation to which the rod is held from move-
ment by means of a set screw 17, shown in Fig. I. By loosening on the
clamp 10 the rod 16 may be swung horizontally to compensate for irregularities
in the roll of paper. Some rolls are unevenly wound, being tighter at one end
than at the other, and it is important that the point of contact between the
guide and the periphery of the roll should be in the line of tension of the
paper so as to prevent the buckling of the paper, which is liable to result in
the web being torn or broken. On one end of the rod 16 is a fixed head 18
and on the other a loose disk 19 pushed forward by a spring 20 between which
and the disk a sleeve 21 may be located. The spring 20 surrounds the outer
end of the rod 16 and is located between the sleeve 21 and a nut 22 tapped on
to the rod so that it may be turned up or back to regulate the tension of the
spring and also for adjustment of the disk 19 when rolls of paper of different
widths are used.
23 represents a loose roller on the rod 16 and which bears against the periphery
of the roll of paper as shown in Fig. X, this roller being held against the
periphery of the paper by means of a counter balance weight 24, see Fig. I,
adjustably held to a rod or arm 25 secured to a head 25" secured to one end of
the spindle 12, to which, as stated, the arm 10 is also secured, by bearings 11
this weight 24 thus acting to hold the roller 23 up against the periphery of the
roll of paper, the head 18 and disk 19 embracing the sides of the roll of paper
as shown in Fig. X, and thus directing the paper accurately into the machine,
notwithstanding the roll of paper itself may be untrue so that it wobbles when
the machine is running. By providing for the adjustment of the rod 16 in the
head or block 15 the guide can be adjusted so that the fixed head 18 thereof
will be just one-half the width of any roll of paper from the center of the
machine.
The web of paper passes over the roller 13, as shown in Fig. III, and beneath

page_text: the roller 26 of the printer 27, in which no novelty is claimed, and which may
be of any well known arrangement.
From the roller. 26 the web passes over a roller 28 and behind a roller 29,
the 'rollers 28 and 29 being journalled in suitable standards on the frame 1, as
shown at 30 Figs. I and III. As the web passes back of the roller 29 gum is
applied near the edges thereof by disks 31 revolving in a stationary pot 32
secured to the frame of the machine. These disks are secured to a shaft 33
journalled in the upper ends of arms 34 secured to a rock shaft 35 which is
also provided with a crank 36, see Fig. II, that has a friction roller 37 bearing
against a cam 38, adjustably secured to one of the driving pinions of the
machine by means of bolts 40 fitting in slots 41 in the cam as shown in Fig. I.
As the roller 37 bears against the salient part of the cam the gumming disks 31
are held away from the paper and when the reduced portion of the cam reaches.
the roller 37 the disks are drawn up against the paper to deposit paste or gum
thereon. The gum that is deposited on the web of the paper by the disks 31 is.
that which sticks the edge fold of the web to the front of the envelope as
shown at A, Figs XXIV and XXV. From the roller 29 the web of paper
passes through a device shown in Fig. V, and which gives the edge folds to the
paper. This device consists of a pair of blocks 42 supported on a rod 43
adjustably held in clips 44 by means of set screws 45, so that, the blocks may
be moved together in a direction crosswise of the machine. The blocks are
adjustably held to the rod 43 by means of set screws 46 so that they can be
respectively adjusted on the rod to suit the width of paper being used. The
clips 44 have a slot and bolt connection 47 with a bar 48 so that the blocks 42
can be adjusted vertically as occasion may require. The bar 48 has a slot and
bolt connection 49 with brackets 50 thus providing further for the vertical
adjustment of the blocks 42. The brackets 50 rest upon standards 51 at each
side of the machine with which they have a slot and bolt connection 52 which
permits of an adjustment of the blocks 42 lengthwise of the machine. Ample
provision is thus made for the adjustment of the blocks in any direction. The
inner faces of the blocks are grooved as shown at 53 so that as the paper passes
between the grooved faces of the blocks as shown in Fig. V, its edges are,
folded and to further facilitate this folding of the edges of the paper, a plate 54
is provided, the ends of which enter the grooves 53 of the blocks, the paper
being folded over the ends of the plate. The plate is supported by a bracket 55
having a slot and bolt connection 56 with the bar 48 so that the plate can be
adjusted latterly of the machine. It will thus be observed that as the web of
paper passes along its edges will be folded over. The grooves 53 in the blocks 42
taper inwardly as shown in Fig. XXI, so as to assist in the folding action. The.
blocks may have grooves beneath the rod 43, as well as above the rod, so that
when they become worn they may be turned over and transposed, the lower.
grooves thus being brought into position to act upon the paper.
From the folding device the paper passes over a roller 57 and beneath a,
roller 58 (see Fig. XXI) these rollers being journalled in the standards 51 that.
are supported on the frame of the machine. The blocks 42 are located in a
position that will cause the grooves 53 to be located at a lower elevation than
the top of the roller 57 so that as the paper passes from beneath the plate 54,
the tendency is to fold the edges of the paper neatly down upon the web, and
to assist further in this action fingers 59, are provided (see Fig. V) under which.
the web passes as it rises to pass over the roller 57. These fingers project.
from U shaped brackets 60 having slot and bolt connection 61 with the bar 48
so that they can be adjusted laterally of the machine to suit the width of the
web of paper being used, and they may also be adjusted vertically inasmuch as
the bolts that connect them to the bar fit in their U-shaped openings. The
fingers 59, the blocks 42 and the plate 54 all being carried by the bar 48 pro-
vides for an adjustment of all of these simultaneously without disturbing their

page_text: relative positions, this adjustment being effected by shifting the bar vertically
on the brackets 50 or by shifting the brackets 50 horizontally on the stan-
dards 51. As the paper passes between the rollers 57 and 58 the edge folds are
pressed closely and firmly down on the web of paper which then passes back of
a roller 62 journalled in the standards 51, as shown in Figs. III and XXI.
As the paper passes over the roller 57 the outer faces of the folds are gummed,
the portion of the fold that is gummed being indicated at B Fig. XXIV. This
gumming is effected by means of disks 63 on a shaft 64, the disks revolving
in a paste pot 65 stationarily fixed to the frame 1 of the machine, as shown in
Fig. XXI. The shaft 64 is journalled in the upper ends of cranks 66 secured
to a rock shaft 67, journalled to the frame 1 of the machine. On one end of
the shaft 67 is a lever 68 provided with a friction roller 69 that engages a
cam 70 adjustably held, by slot and pin connection 71, to one of the driving
pinions of the machine, as shown in Fig. I. When the salient part of the
cam 70 is bearing against the friction roller of the lever 68, the pasting disks 63
are held away from the web of the web of the paper and when the reduced part
of the cam reaches the friction roller, the disks are drawn up against the web
to apply the paste to the part B. The shaft 64 of the disks 63 is provided
with a grooved pulley 72 and the shaft 33 of the disks 31 is provided with a
grooved pulley 73. The shaft 62 of the roller 62 is provided with a double
grooved pulley 74, and to drive the pasting disks from the shaft 62", the
pulleys 72 and 73 are connected to the pulley 74 by means of belts 75 as shown
in Fig. II.
The friction of the web on the roller 62 is sufficient to revolve the
pasting disks.
At the other ends of the shafts 33 and 64, from the pulleys 72
and 73, are grooved pulleys 76 that receive a belt 77 connecting the two shafts
together. To provide a means for drawing the pasting disks forward when the
reduced part of the cams reach the friction rollers of the disk shafts, as stated,
the belts 75 and 77 are made in flexible form, preferably of coiled wire, so that
while they act to draw the pasting disks forward, they yet remain sufficiently
taut to revolve the disks when in contact with the web, and deposit thereon.
78 represents the scrapers for removing the surplus gum or paste from the
disks 31 and 63.
From the roller 62 the web passes beneath a roller 79 journalled in stan-
dards 80 supported on the frame 1, as shown in Fig. XXI. From the roller 79
the web passes between an upper roller 81 and a lower roller 82, journalled in
the standards 80 and the upper of one of which carries a knife and a folding
blade while the lower one carries a pair of clamps and a pair of movable guide
pins. Before the web reaches the rollers 81, 82, it has been pasted at A and B,
Fig. XXIV, and the next operation is to give the bottom transverse fold to the
envelope, this fold being indicated by the dotted line C, Fig. XXIV, and it is
effected by a blade 83 carried by the roller 81, that presses the web into a
groove 84 formed in the periphery of the roller 82, see Figs. XXI, XXII,
and XXIII. This folding action is illustrated as taking place in Fig. XXI,
and to hold the paper in the groove after it has been forced there by blade 83,
in the bottom of the groove is located a rock shaft or rod 85 that is provided
with a blade 86, best illustrated in Figs. XXII, and XXIII. At the time that
the web is being folded into the groove 84 the blade 86 is held against the
forward wall of the groove 84 by means of a spring arm 87 on the rock shaft
or rod 85, this arm bearing against a cam 88 on a bushing 89, see Fig. XVII,
held by a set screw 90 in a socket 91 supported from the frame of the machine,
the shaft 82% of the roller 82 passing through the bushing 89. Just as the
blade 83 folds the web into the groove 84 the spring arm 87 leaves the cam 88,
which it is just about to do in Fig. XXI, and a torsional or other spring 92
that connects the shaft 85 to the end of the roller, as shown in Fig. XVII, draws
the blade 86 toward the rear wall of the groove 84 and thus clamps the paper
in the groove and holds it firmly there while the blade 83 draws out of the
groove. To enable the blade to be drawn out of the groove without a twisting

page_text: strain being exerted thereon, the blade is located in a slot 93 formed in the
periphery of the roller 81, see Fig. XXII, and held therein by a rock shaft or
rod 94. The blade is normally held against the forward wall of the groove 93
by a spring 95 but as the blade comes against the web of paper the spring
yields and the blade. contacts with the rear wall of the groove as it forces the
web of paper into the groove 84 of the roller 82 and then as the blade is with-
drawn from the groove after the blade S6 has clamped the paper, the shaft 94
turns in its bearing and allows the blade to be withdrawn from the groove
without a twisting action being exerted thereon. When the web of paper
ig
caught by the clamping blade 86 it is drawn around by the roller 82, the back 1)
of the envelope (see Fig. XXIV) being folded against the front E (Fig. XXIV)
as illustrated in Fig. XXII, the back portion of the envelope being drawn
from over a stationary plate 96 on to which it had been directed. As the
rollers 81 and 82 continue to revolve a V-shaped knife 97 carried by the
roller 81 severs the web of paper on the dotted line F, Fig. XXIV, the knife
cutting against a steel strip 98 that is secured to and forms part of the roller 82.
Forward of the roller 82 is a gumming and folding roller 99 supported on a
shaft 100. This roller is provided with a blade 101 constructed and arranged
to have a radial movement with relation to the axis of the roller. As shown
in Figs. XI and XIII, the blade 101 fits in a groove formed in the roller-99
and is held in its inner position by means of springs 102 until projections 103
thereon contact with cams 104 and then the blade is forced in an outwardly
direction. The cams 104 extend from bushings 105 fitting in sockets 108 on
arms 109 supported from the frame of the machine, the shaft 99" of the roller 99
passing through the bushings 105. As the blade is projected outwardly it
forms the flap fold of the envelope, illustrated by the dotted line G, Fig. XXIV,
and it thus forms this fold by pressing the web into a groove 110 in the
roller 82, see Figs. XXII and XXIII. The parts are so disposed, that as the
blade 101 comes opposite the groove 110 it is projected outwardly into the
groove by the cams 104 and then it recedes from the groove. The paper is
gripped by a blade 111 located in the groove and which, when the paper is
being folded into the groove, is held against the forward wall of the groove by
a spring arm 112, shown in Fig. XVII and by dotted lines in Fig. XXII,
bearing against a cam 113, the arm being secured to a rock shaft that carries
the plate as already described in connection with the plate 86 and its rock
shaft 85. The arm 112 leaves its cam as the plate 101 recedes and the blade 111
is caused to grip the paper by means of a spring 114 secured to the rock shaft
of the blade and connected to the end of the roller 82, see Fig. XVII.
As the envelope passes between the rollers 82 and 99 the gum by which the
envelope is sealed, when in use, is applied. This gum may be applied either
to the flap or to the back of the envelope with which the flap contacts when
the envelope is in use, and to apply the gum at either place and also to provide
for the application of the gum at either place by a quick and easy adjustment,
the roller 99 is provided with two gumming dies, one of which appears at 115,
Fig. XV, and the other at 116. These dies are separated by the plate 101 and
are held to the roller by means of guide screws 117 and adjusting screws 118.
Behind each die and fitting in sockets formed in the roller, are springs 119, see
Fig. XIV, and dotted lines Fig. XV. If the gum is to be applied to the flap
of the envelope, the screw 118 of the die 115 is slightly loosened, thus allow-
ing the spring 119 to force the die out against the heads of the screws 117,
which brings the die 115 into active position. If the gum is to be applied to
the back of the envelope the screw 118 of the die 115 is tightened and the
screw 118 of the die 116 is loosened, permitting the latter die to move to
active position while the die 115 will not receive gum and thus it becomes.
inactive. The gum is applied to the dies by means of a roller 120, see Figs. III
IV and XXI, revolving in a pot 121, and which receives the contact of the die 115

page_text: or the die 116, according to which is in active position. It is sometimes desirable,
for a certain class of envelopes, to gum both the back and the flap and this
can be done with my machine by adjusting both dies to operative position.
The roller 120 is journalled in boxes 122, one of which is shown in Fig. VI,
the journals of the roller fitting in sockets 123 formed in the boxes 122, and
held therein by plates 124 having a slot and pin connections 125 with the
blocks. The boxes 122 fit in openings 126 in the frame 1, of these openings
being shown in Fig. III. The boxes may be adjusted to move the roller 120
forward by means of set screws 127. The pot 121 is supported by means of
adjustable brackets 128 thereon, see Fig. VII, that are notched at 129 to receive
a rod 130 supported by the boxes 122. The pot 121 is thus held by the same
boxes that hold the roller 120 so that they can be moved forward or backward
to permit the roller 120 to be moved to and from the roller 99, while the roller
is revolving, in the direction of the arrow Fig. III, against the edge of the
pan which removes the surplus gum.
In cutting the web the knife leaves points H, Fig. XXIV, which must be
cut off on the dotted line J. As the web moves forward after being cut by the
knife 97 it passes on to the stationary plate 96 and to avoid danger of the
points H passing under the plate and to insure the passage of the web onto
the plate, short pins 131 are employed, see Fig. XVII, that fit in grooves 132
formed in the periphery of the roller 82, these pins being secured to levers 133
pivoted to the end of the roller at 134, see Fig. XXII, so that as the roller 82
revolves the outer ends XXX of the levers 133 will contact with collars 136 on the
shaft of roller 79, see Figs. II and XXII, this contact taking place just after
the knife has severed the web so that the upward movement of the pins 131
will lift the corners and direct the web onto the stationary plate 96. Before
the plate 83 comes around again, to fold the web into the groove 84, the corners H
of the web have been clipped off on the dotted lines J. This is accomplished
by a pair of blades 137, located at the upper end of the stationary plate 96, and
a pair of revolving blades 138. The arrangement of the blades 137 is best
shown in Figs. XVIII, XIX, and XX. They are pivoted at 139 to a bar 140
supported by the main frame of the machine, see Fig. IV. 141 represents pins
fitted in the outer ends of the blades 137 and the inner ends of which are
received by grooves 142 in the bar 140. 143 represents springs secured to the
outer ends of the blades 137, the other ends of the springs being made fast to
arms 144 projecting from the bar 140, see Fig. XIX. The springs 143 act to
pull the outer ends of the blades 137 in a direction toward the blades 138, the
pins 141 limiting the movement of the blades. The blades 137 are thus held
at an inclination to the line of travel of the web of paper and as the blades 138
revolve past the blades 137 the springs 143 allow the outer ends of the latter
blades to move back permitting the blades 138 to pass, a shearing cutting action
being thus effected by the blades 137. The blades 138 are set at an inclina-
tion as shown in Fig. IV, so that they will have a shearing action in cutting
the web, their inner ends first passing the inner ends of the blades 137, and as
their outer parts pass the blades 137, the latter recede as stated. The blades 138
are secured to a shaft 145 journalled in the frame 1 of the machine and geared
as shown at 146, Fig. II to the main driving shaft 147, to which is secured the
tight and loose pulleys 148. The parts are so disposed that just after the
corners H are clipped off of the web, the blade 83 folds the web again in the
groove 84 of the roller 82 and the portion of the web that has been run onto
the stationary plate 96 is now drawn back around the lower end of the station-
ary plate and forms the back of the next envelope. 149 represents the guide
arm secured to the bar 140 and beneath which the web passes, as shown by
dotted lines Fig. XXI, the web being held by the guide down upon the plate 96.
Before the envelope passes from between the rollers 82 and 99 the arm 87 of
the plate 86 contacts with the cam 88 and releases the lower edge of the

page_text: envelope which assumes the position seen in Fig. XXIII, the envelope being
held at this time in the groove 110 by the blade 111.
After the sealing gum has been applied the arm 112 of the blade 111 comes
in contact again with its cam 113 and the completed envelope is now received
by a transferring device that delivers it to a pair of wheels or disks 150, see
Figs. IV, XXI, XXII and XXIII. The wheels or disks 150 are secured to a
shaft 151 and they are placed a short distance apart, as shown in Fig. IV, so
as to permit the flap of the envelope to remain open or away from the back
thereof while it is travelling around the wheels, at which time the sealing
gum is being dried. Each wheel is provided with a belt 152, each belt bearing
against its wheel from 153 to 154, Fig. XXI and then passing over rollers 155
supported by stationary frames 156, as seen in Fig. XXI. One of the rollers
of 155 of each belt is connected to the frame 156 by an adjustable arm 155ª
so that by moving the arm the belt may be tightened or loosened. The trans-
ferring device delivers the envelope to the wheels 150 near the point 153 and
the ends of the envelope are grasped between the wheels and their respective
belts, the flap of the envelope being free, as shown at 157, Fig. XXI, so that,
as stated, the sealing gum has an opportunity to dry while the envelopes are
being carried around the wheels to the point 154, where they are delivered onto
a belt 156 which conducts them from the machine, the envelopes passing under
a pair of cords 159, see Figs. IV and XXI, that pass around a loose rod or
shaft 160. The envelopes are directed to their position between the belt 158
and the cords 159 by disks 161 supported by arms 162 secured to collars 163
on a fixed rod 170, see Fig. IV, the rod 170 being supported in the frames 156
that support the rollers 155.
The device that transfers the envelopes to the wheels 150 consists of a plate 171,
secured to a rod 172, see Figs. XXII and XXIII, supported in slotted arms 173
mounted on a rock shaft 174 that is journalled in the frame of the machine at
175 Fig. IV. On one end of the shaft 174 is an arm 176 adapted to be engaged
by a cam 177 on the shaft 145. On the plate 171 is a projection 178 onto
which the envelopes drop, as they merge from between the rollers 82 and 99,
the plate, at this time, being in the position shown in Fig. XXIII, so that it
forms a back for the envelopes to rest against. The plate is held in the position
shown in Fig. XXIII, by its lower end 179 resting against a stop 180 projecting
from an arm 181, located between the shaft 174 and the rod 170, see Figs. IV
and XXI. When the plate 171 is in the position shown in Fig. XXIII, the
cam 177 is not operating on the arm 176, at which time the arms 173 are being
held down by springs 182 that connect the arms to the rod 170, the arms thus
acting to press the end 179 of the plate against the stop 180 which forces the
plate back to the position shown in Fig. XXIII. As the envelop drops onto
the plate, the cam 177 engages the arm 176 and by rocking the shaft 174 lifts
the arms 173 from the position shown in Fig. XXIII to the position shown in
Fig. XXII, and a spring 183 that connects the plate 171 to the shaft 151 then
draws the plate forward and the envelope falls onto the wheels 150 and is carried
around between the wheels and the belt 152, as explained. The slots in the
arms 173 are made sufficiently long to allow the plate to move slightly, as
shown by dotted lines Fig. XXII under friction with the wheels so that the
plate holds the envelope until the latter is caught between the belts and the
wheels. As soon as the cam leaves the arm 176, the springs 182 draw the
the arms 173 downwardly again, causing the plate 171 to resume the position
shown in Fig. XXIII, to receive the next envelope.
As the envelopes leave the machine, the gum or paste is thoroughly dried by
a current of hot air forced through them from a perforated pipe 185, see
Figs. II and III.
The gearing of the machine is arranged as follows:-
147 represents the drive shaft provided with the pulleys 148. This shaft is
in the form of a short stud journalled in one of the side bearings of- the frame

page_text: and has upon it a pinion 200, see Figs. I and II, that meshes into a pinion 201
on the shaft of the roller 82. On the other end of the shaft of the roller 82
is a pinion directly beneath, and which meshes with a pinion 202 on the shaft
of the roller 81, so that the rollers 82 and 81 are driven from the same shaft 147.
The pinion that is directly beneath the pinion 202 also meshes with a pinion 203
on the shaft of the roller 99. The pinion 202 is connected through means of
an idler 204 with a pinion 205 on the shaft 145. On the shaft of the roller 99
near the pulley side of the machine is a pinion 206 that meshes with a
pinion 207 on the shaft of the roller 120. The pinion directly beneath the
pinion 202, also meshes with the pinion 208 on the shaft of roller 79 and on
shaft of roller 79 near the pulley side of the machine is a pinion 209 engaging
a pinion 210 on a short shaft journalled in the frame of the machine and which
in turn engages a gear wheel 211 on the shaft 151, whereby the latter is driven.
On the shaft 151 is a pulley 212, that receives a belt 213 that drives the carrier
belt 158, the belt 213 passing around a pulley on a shaft, not shown, that
carries the outer end of the belt 158. The pinion 201 meshes with the pinion 214
that engages a pinion 215 that in turn engages that in turn engages a pinion 216, to
which the cam 70 is secured. The pinion 216 meshes with a pinion 217 that
engages a pinion 218, the latter pinion engaging a pinion 219 which carries
the cam 39. The pinion 219 is connected through idler pinions 220 with
the gear wheel 221 on the shaft of the roller 26, and the roller 26 is geared
as shown in Fig. I, to the printing device. The pinions 214 and 220 inclusive
are secured to short studs journalled in the frame of the machine.
In Fig. XXVI, there is shown an envelope designed to be used without
sealing. In making this envelope, the disks 31 apply the paste to what is the
back of the completed envelope, or the part represented at I, Fig. XXVII, 80
that the edge fold is pasted down to the back instead of being pasted down to
the front of the envelope, as shown in Fig. XXV. The disks 63 then apply
the paste to the outer face of the fold of the front of the envelope, the part A,
Fig. XXIV, so that the two adjacent faces of the edge folds are pasted together
when the envelope is folded on the line C. This leaves the face of the envelope
free at the ends, as shown at K, Fig. XXVII, instead of the back being free
at the ends as shown at I, Fig. XXV, and to add strength and finish to the
envelope, short ends M of the fold are folded down against the back of the
envelope, as shown at N, Fig. XXVII, and cemented thereto. To apply the
gum to these short pieces M, without applying it to any other part of the
envelope, the dies 115 and 116 are cut away except at the extreme ends, as
shown at 115 and 116, Fig. XVI, these parts 115 and 116 applying the paste
to the small points M so as to cause them to adhere to the back of the envelope
when the flap is folded.
Having now particularly described the nature of this said invention, as com-
municated to me by my foreign correspondent and in what manner the same is
to be performed, I declare that what I claim is :-
1. In an envelope machine, the combination of means for supporting a roll
of paper, adjustable in width, and means having heads for engaging the ends
of the roll to direct the web of paper accurately to the machine and adapted to
be swung horizontally, and adjustable bodily transverse of the machine, so that
the central point between the heads may be kept in the center of the machine;.
substantially as described.
2. In an envelope machine, the combination of means for supporting a roll
of paper, adjustable in width, means having heads for engaging the ends of the
roll to direct the web of paper accurately to the machine, and adapted to be
swung horizontally and adjustable bodily transverse of the machine, so that
the central point between the heads may be kept on the center of the machine,
and means for engaging the periphery of the roll; substantially as described.
3. In an envelope machine, the combination of means for supporting a roll

page_text: of paper, and means for directing the web of paper accurately to the machine,
consisting of a rod adapted to be swung horizontally and adjustable transverse
of the machine, having a head engaging one end of the roll, and a disk engag-
ing the other. end of the roll; substantially as set forth.
4. In an envelope machine, the combination of means for supporting a roll
of paper, and means for directing the web of paper accurately to the machine,
consisting of a rod adapted to be swung horizontally and adjustable transverse
of the machine, having a head engaging one end of the roll, and a loose spring
actuated disk engaging the other end of the roll; substantially as set forth.
5. In an envelope machine, the combination of means for supporting a roll
of paper, and means for directing the web of paper accurately to the machine,
consisting of a rod adapted to be swung horizontally and adjustable transverse
of the machine, having a head engaging one end of the roll, and a disk engag-
ing the other end of the roll; said rod being carried by a pivoted support pro-
vided with a counterbalance, whereby the rod with the head and disk are caused
to move toward the center of the roll as the roll diminishes in size; subsian-
tially as set forth.
6. In an envelope machine, the combination of means for supporting a roll
of paper, and means for directing the web of paper accurately to the machine,
consisting of a head engaging one end of the roll, a loose spring actuated disk
engaging the other end of the roll, and a rod carrying said head and disk,
adapted to be swung horizontally and adjustable transverse of the machine;
substantially as set forth.
7. In an envelope machine, the combination of means for supporting. a roll
of paper, and means for directing the web of paper accurately to the machine,
consisting of a head engaging one end of the roll, a disk engaging the other end
of the roll, a rod to which said head is secured and which passes through said
disk, a nut on the disk end of said rod, and a spring located between said nut
and said disk, the rod being adjustable transverse of the machine and adapted
to be swung horizontally; substantially as set forth.
8. In an envelope machine, the combination of means for supporting a roll
of paper, and means for guiding the web of paper accurately to the machine
and preventing the overrunning of the roll, consisting of a pivoted arm pro-
vided with a counterbalance weight, a rod adjustable transverse of the machine
and adapted to be swung horizontally, mounted on said arm, a head on one end
of said rod adapted to engage one end of the roll of paper, a disk, on the other
end of said rod adapted to engage the other end of the roll of paper, and a
roller mounted on said rod and adapted to bear against the periphery of the
roll of paper; substantially as set forth.
9. In an envelope machine, the combination of means for supporting a roll
of paper, adjustable in width, and means having heads for engaging the ends
of the roll to direct the web of paper accurately to the machine and adjustable
horizontally on a supporting pivot; substantially as set forth.
10. The paper guide comprising a spindle, a counterbalance secured to the
spindle, the arm having bearings at its inner end, secured to the spindle, and a
clamp at its outer end, the block mounted in the clamp, the rod adjustably
secured to the block, the loose roller mounted on the rod and adapted to bear
on the roll, the fixed head secured to the rod, the loose disk mounted on the rod,
and a spring whereby the loose disk is pushed forward; substantially as
described.
11. The paper guide comprising a spindle, a counterbalance secured to the
spindle, the arm having bearings at its inner end secured to the spindle and a
clamp at its outer end, the block mounted in the clamp, the rod secured to the
block, the loose roller mounted on the rod, the fixed head secured to the rod,
the loose disk mounted on the rod, the loose sleeves mounted behind the disk,
the nut tapped onto the rod, and a spring located between the nut and the
sleeve; substantially as described.

page_text: 12. In an envelope machine, means for folding the edges of the web of paper,
consisting of blocks having vertical faces, formed with grooves and adjustably
held with relation to each other, a plate arranged horizontally for holding the
edges of the paper in the grooves of the blocks, a bar to which the blocks and
plate are adjustably connected and adjustable brackets to which said bar is
adjustably connected; substantially as set forth.
13. In an envelope machine, means for folding the edges of the web of paper,
.consisting of blocks, having vertical faces formed with grooves, a horizontally
arranged plate acting to hold the web of paper in the grooves of the blocks, a
roller over which the web of paper passes from said blocks, and fingers located
between said blocks and roller and which bear against the folds of the paper;
substantially as set forth.
14. In an envelope machine, means for folding the edges of the web of paper,
consisting of blocks, having vertical faces formed with grooves,. a horizontally
arranged plate for holding the paper in the grooves of the blocks, a roller over
which the paper passes from the blocks, and adjustable fingers located between
Baid blocks and roller, and which are adapted to bear against the folds of the
paper; substantially as set forth.
15. In an envelope machine, the combination of two pairs of pasting disks,
means for folding the edges of the paper located between said pasting disks,
cams for holding the pasting disks out of contact with the paper, and means
for drawing the pasting disks into contact with the paper when released by the
cams, consisting of flexible belts by which the disks are also turned; substan-
tially as set forth.
16. In an envelope machine, means for forming the bottom fold of the
envelope, consisting of a grooved roller provided with a spring actuated clamp-
ing blade, and a roller provided with a spring actuated pivoted blade for fold-
ing the paper into the groove of the first mentioned roller; substantially as
set forth.
17. In an envelope machine, means for forming the fold at the bottom of the
envelope, consisting of a grooved roller having a spring-actuated blade pro-
vided with an arm adapted to contact with a cam for moving the blade in
opposition to the spring, and a roller provided with a spring-actuated pivoted
blade for folding the paper into the groove of the first mentioned roller;
substantially as set forth.
18. In an envelope machine, the combination of a roller provided with a
clamping blade, a roller provided with a folding blade and a cutter, a stationary
plate and means for directing the paper onto the plate, after it has been severed
by the cutter, consisting of levers pivoted to the ends of the clamping roller,
said levers being provided with pins fitting in grooves formed in the periphery
of the roller, and means for engaging said levers to lift said pins and direct the
paper onto the plate; substantially as set forth.
19. In an envelope machine, the combination of a roller provided with a
clamping blade, and a roller provided with a folding blade and a cutter, said
first mentioned roller being provided with a steel plate forming a bed in its
cylindrical surface against which said cutter acts in severing the paper;
substantially as set forth.
20. In an envelope machine, the combined folding and pasting roller having
a pair of pasting dies separated by a radially moving folding blade; substan-
tially as set forth.
21. In an envelope machine, a roller provided with a pair of dies adapted to
apply the sealing paste to the flap of the envelope, and also to the back of the
envelope at the point against which the flap contacts when the envelope is
sealed substantially as set forth.
22. In an envelope machine, a roller provided with a pair of dies adapted to 5
apply the sealing paste either to the back or the flap of the envelope, and means

page_text: for moving and holding either one of said does out of active position; 'substan-
tially as set forth.
23. In an envelope machine, a roller provided with a pair of dies for apply-
ing the sealing paste either to the back or the flap of the envelope, springs
located behind said dies, screws for limiting the outward movement of the dies,
and screws for adjusting the dies so that either one may be moved and held out
of operative position; substantially as set forth.
24. In an envelope machine, a roller provided with a pair of dies for apply-
ing the sealing paste either to the back or to the flap of the envelope, means
for forcing the dies outwardly, and means for holding the dies to their inner
position, so that either die may be brought and held to operative position, while
the other die is held in inoperative position; substantially as set forth.
25. In an envelope machine, the combination of a die roller for applying the
sealing paste to the envelope, a paste roller, a paste pan against the edge of
which the paste roller revolves, and adjustable boxes carrying both the paste
roller and the paste pan together; substantially as set forth.
26. In an envelope machine, means for cutting off the corners of a web of
paper, consisting of a pair of blades, a fixed bar to which the inner ends of
said blades are pivoted, pins fitting in the outer ends of said blades and the
inner ends of which fit in grooves formed in said bar, springs for holding said.
blades at an inclination, and a pair of rotating blades set at an inclination;
substantially as set forth.
27. In an envelope machine, the combination of a clamp roller, a folding
roller, a stationary inclined plate onto which the web passes as it merges from
between said rollers, and rotating cutters located at the far side of said plate
from said rollers for clipping off the corners of the web of paper; substan-
tially as set forth.
28. In an envelope machine, the combination of a clamp roller, a folding
roller, a stationary plate on which the web passes as it merges from between
said rollers, cutting blades located at the far side of said plate from said rollers
for clipping off the corners of the web, and means for directing the web onto
said plate substantially as set forth.
29. In an envelope machine, the combination of a clamp roller, a folding
roller located above the clamp roller, a stationary plate onto which the web of
paper passes as it merges from between said rollers, cutting blades located at
the far side of said plate from said roller for clipping off the corners of the web
of paper, and means carried by said clamp roller for directing the web of paper
onto said plate; substantially as set forth.
30. In an envelope machine, the combination of forming mechanism, a
delivery mechanism, and means for transferring the envelopes from the former
to the latter, consisting of a plate provided with a stop to receive the envelopes,
a rod to which the plate is secured, slotted arms in which said rod fits, a rock
shaft to which the arms are secured, springs for moving said arms in one direc-
tion, a cam for moving the arms in the other direction, a stop against which an
extension of said plate bears, and springs for tilting said plate when released
by the raising of said arms; substantially as set forth.
31. In an envelope machine, the combination of forming mechanism, a
delivery mechanism, and means for transferring the envelopes from the former
to the latter, consisting of a swinging plate, having a projection to arrest the
downward movement of the envelope, and means for moving the plate after it
has received an envelope: substantially as set forth.
32. In an envelope machine, the combination of forming mechanism, a pair
of wheels for delivering the envelope after they are formed, and means for
transferring the envelopes from the forming mechanism to said wheels, con-
sisting of a plate supported in slotted arms and having an extension bearing
against a stop, and a spring for drawing said plate against said wheels when said
arms have been raised; substantially as set forth.

page_text: 33. In an envelope machine, the combination of a pair of delivery wheels,
and means for conveying the envelopes from the wheels, consisting of a belt, a
pair of disks delivering the envelopes from the wheels, and a pair of cords
beneath which the envelopes are carried; substantially as set forth.
34. In an envelope machine, the combination of a delivery belt, a pair of
cords beneath which the envelopes are carried on the belt, and a perforated pipe
arranged in line with the belt, for directing a current of hot air through the
envelopes between the belt and cords, as they are carried by the belt; substan-
tially as set forth.
35. In an envelope machine, the combination of a delivery belt, means
whereby the envelopes are conducted edgewise from the machine and a per-
forated pipe arranged in line with the belt, for directing a current of hot air
through the envelopes as they are carried by the belt; substantially as set forth.
Dated this 16th day of October 1899.
BOULT, WADE & KILBURN,
Agents for the Applicant.