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Патент USA US2110586

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March 8, 1938.
H. M. BARBER
2,110,586
FLAT SHEET DELIVERY FOR WEB rn‘xmme ROTARY PRESSES
Filed June 25. 1936
i
INVENTOR
ATTORNEYS
‘
Patented Mar. 8, ‘193.8’
I
" UNITED STATES PATENT ‘OFFICE,
FLAT SHEET DELIVERY FOR WEB PRINT ‘
ING ROTARY PBESSES
.
Howard M. Barber, l’awcatuck, _,Conn., 'assignor
to O. B. Gottrell & Sons Company, Westerly,
R. I., a. corporatlon'of Delaware
‘Application, June 25, 1936,‘ ‘Serial No. 87,155;
'
_a Claims.
(01. 271::6)
In high speed web printing rotary presses
having ?at sheet deliveries it is desirable that
the speed of the sheets be materially reduced on
their way to the delivery piles, , Ihave found that
‘
,
respectively. These sheet delivery endlms car
riers are provided with spaced sets of grippers\ ‘
32, 33, arranged to take the leading ends of the
collected groups of sheetsffrom the sheet transfer
5 by providing stationary supports over which the ' rotary carrier grippers 20 and 2| respectively. ‘ 5
Because the surface speed of the sheet delivery
sheets are drawn as they are forwarded from
endless carriers is less than the surface speed of.
the sheet collecting rotary carriers to the oppo
sitely disposed sheet delivery endless carriers, the the sheet collecting and transfer carriers, I pro
sheet transfer rotary carriers maybe driven at vide curved stationary supports 34, 35 over which
10 the same high surface speed as the ‘sheet collect
ing rotary carriers and that the endless sheet
delivery carriers may be driven at a slower sur
face speed, it being understood that the higher
surface speed of the sheet transfer rotary car
15 riers will not a?z‘ect the sheets after their leading‘
ends have been taken by the sheet delivery end
f less carrier grippers because the sheets are being
the groups ofsheets travel as they are forwarded 10
by the sheet transfer rotary carrier grippers 20
and 2| from the sheet collecting rotary carrier
grippers l2 and I3 to the sheet delivery endless
carrier grippers 32 and 33. This permits the
- sheet transfer rotary carriers l4, l5 to travel at 16
the same surface speed as the sheet collecting _
rotary carriers in, II without disturbing the
drawn over the said stationary supports by the
slower moving sheet delivery endless carrier
20 grippers
A practical embodiment of my invention is
represented in the accompanying drawing,_ in
which the ?gure represents a diagrammatic side
slower travel of the groups of sheets after their
leading ends have been taken by the sets of
grippers‘ 32, 33 on the slower moving sheet de; 20
30 rotary carriers l0 and II respectively, collect
alternate sheetsV cut from the traveling- web. In
the present instance the sheets are-‘collected in
groups of two. These sheet collecting rotary
carriers are driven at‘a surface speed equal to
mechanisms comprises, generally, coacting rotary 30
and oscillating nippers 40, ll driven fromthe
sheet delivery, endless carrier and operable to
depress the tail ends of the sheets, retard, and
livery endless carriers 22 and 23,
4,
The means which Ihave shown for taking the
sheets from. the sheet delivery-endless carrier and
depositing them ?at onto the piles 36, 31 are
elevation of a double ?at ‘sheet delivery.
25 The traveling-web I is led through the coact ‘shown herein as sheet tail end engaging mecha- 25
ing rotary cutters 2, 3, the guides 4, 5, the rolls nisms ,38 and 39 respectively, of. well known or
6,1, and the guides 8,--9 to a point between the approved form, such for instance as the mecha
sheet collecting rotary carriers III, II. Single‘ nism disclosed in my copending application ?led
sets of grippers I2 and I3 on the sheet collecting May 20, 1936, Serial No. 80,667, each of which
' 35 the speed of travel of the web, by any well known ,
or approved means .(not shown herein). _
_
The sheet transfer rotary carriers l4, ii are
driven at the surface speed of the sheet -,c0l1ect
I t ink rotary carriers "I, II, as for instance through
stop the sheets and deposit them onto their de
livery pile.
'
-
35
From the above description it will be seen that
by, providing the- curved stationary supports '
which partially surround the sheet transfer car
riers‘the collected groups of sheets are drawn
40 the-pairs of gears-l6, l1 and l8, 19 respectively. , along the supports?rst at the speed of the web, 40
These sheet transfer rotary carriers are shown
herein as having twice the circumference _of the
by the transfer carrier grippers and then at a
lesser speed by the delivery carrier grippers,
' sheet collecting rotary carriers and as being pro--. thereby allowing the transfer carriers to travel
‘ vidéd with» single sets of grippers 20, 2|, arranged at'the surface speed of the, sheet collecting car
4,5 to coact with the single sets'of grippers l2, l3 _ riers and yet permit the groups of sheets to be 45
on the sheet collecting~rctary carriers “I, II, to slowed down as soon as their leading ends have
take a collected-group of ‘sheets from the said , bsen taken by vtheir respective delivery carrier
sheet collecting rotary carriers. '
Oppbsitely disposed sheet delivery endless car
50 riers 22,-23 of the well known sprocket chain type
pass around inner and outer sprocket wheels 24,
25 and 26, 21 respectively, which endless carriers
‘are driven at a surface speed less than that of
the collecting and transfer rotary carriers, as
55 for instance through the gears 28, 29 and Ill; 3|
grippers. ~ '
_
.'
_‘/
' It will also beseen that the 'sheet' tail'iend
nippers serve to still further retard and to stop > 50
the travel of. the sheets before they are deposited
upon their respective piles. I
_
It ~' is evident that various changes may be
resorted to in the construction, form and ar-‘
rangement of the several .partswithout departing 55
2,110,586
from the spirit and scope of my invention, and
hence I do not intend to be limited to the par
ticular embodiment herein shown and described,
but—
'
comprising two rotary carriers, each having a
single set of grippers arranged to collect a group
of sheets, two sheet delivery carriers having~
spaced sets of grippers, two rotary carriers hav
' ing single sets of grippers for transferring the col
What I claim is:
1. Means for cutting sheets from a traveling lected groups of sheets from their respective sheet
‘web, and, a double flat ‘sheet delivery therefor collecting carrier grippers to their respective
comprising two rotary carriers, each arranged sheet delivery carrier grippers, and curved sta
tionary sheet supports along the convex sides
to collect a group of sheets, two oppositely dis
of which the sheets are drawn as they are for 10
10 posed sheet delivery carriers, two rotary carriers
for transferring the collected groups of sheets warded by the sheet transfer and delivery car
from their respective sheet collecting carriers to riers, said sheet supports partially surrounding
their respective sheet delivery carriers, and curved the upper sides of their respective transfer cyl
stationary sheet supports along the convex sides - inders and located between them and their sheet
15 of which the sheets are drawn as they are for
warded by the sheet transfer and delivery car
riers, said sheet supports partially surrounding
collecting and delivery carriers.
web, and a double ?at sheet delivery therefor
comprising two.rotary carriers, each having a
single set. of grippers arranged to collect a group
of sheets, two sheet delivery endless carriers hav 20
2. Means for cuttingzsheets from a traveling
web, and a double flat sheet delivery therefor
ing spaced sets of. grippers, two rotary carriers
having single sets of grippers for transferring
the upper sides of their respective transfer car
riers and located between them and their sheet
20
collecting and delivery carriers.
6. Means for cutting sheets from _a traveling
comprising two rotary carriers, each arranged
the collected groups of sheets from their respec
to collect a group of sheets, two oppositely dis
tive sheet collecting carrier grippers to their re-v
spective sheet delivery endless carrier grippers, 25
and curved stationary sheet supports along the
25 posed sheet delivery endless carriers, two rotary
carriers for transferring the collected groups of
sheets from their respective sheet collecting car
riers to their respective sheet delivery endless
carriers, and curved stationary sheet supports
30 along the convex sides of which the sheets are
drawn as they are forwarded by the sheet trans
fer and delivery carriers, said sheet supports par
tially surrounding the upper sides of their re
spective transfer carriers and located between
35 them‘ and their sheet collecting and delivery
carriers.
3. Means for cutting sheets from a traveling
convex sides of which the sheets are drawn as
they are forwarded by the sheet transfer and
delivery carriers, said sheet supports partially
surrounding the upper sides of their respective 30
transfer cylinders and located between them and
their sheet collecting and delivery carriers.
7. Means for cutting sheets from a traveling _
web, and a double flat sheet delivery therefor
comprising two rotary carriers, each having a
single set of grippers arranged to' collect a group
of sheets, two sheet delivery carriers having
web, and a double flat sheet delivery therefor ’ spaced sets of grippers, two rotary carriers hav
comprising two rotary carriers, each arranged to ing single sets of grippers for transferring the
collect a group of sheets, two oppositely disposed collected groups of sheets from their respective
sheet delivery carriers, two rotary carriers for sheet collecting carrier grippers to their respec
transferring the collected groups of sheets from tive sheet delivery carrier grippers, and curved
their respective sheet collecting carriers to their stationary sheet supports along the convex sides
respective sheet delivery carriers, and curved sta
of which the sheets are drawn as they are for
45 tionary sheet supports along the convex sides of warded by the sheet transfer and delivery car 45
which the sheets are drawn as they are forwarded riers, said sheet supports partially surrounding.
by the sheet transfer and delivery carriers, said the upper sides of their respective transfer cyl
sheet supports partially surrounding the upper inders and locatedbetween them and their sheet
sides' of their respective transfer carriers and
50 located between them and their sheet collecting
and delivery carriers, means for driving the sheet
collecting and transfer carriers at the surface
speed of the web and the sheet delivery carriers
at a lesser surface speed.
55
4. Means for cutting sheets from a traveling
web, and a- double flat sheet delivery therefor
comprising two rotary carriers, each arranged to
collect a group of sheets, two oppositely disposed
sheet delivery endless carriers, two rotary car
60 riers for transferring the collected groups of
sheets from their respective sheet collecting car
riers to their respective sheet delivery endless
carriers, and curved stationary sheet supports’
collecting and delivery carriers, means for driv
ing the sheet collecting and transfer carrier
grippers at the surface speed of the web and the
sheet delivery carrier grippers at a lesser surface
speed.
‘
8. Means ‘for cutting sheets from a traveling
web, and a double ?at sheet delivery therefor
comprising two rotary carriers, each having a
single set of grippers arranged to collect a group
of sheets, two sheet delivery endless carriers hav
ing spaced sets of grippers, two rotary carriers
having single sets of grippers for transferring the
collected groups of sheets from their respective
sheet collecting carrier, grippers to their respec
tive sheet delivery endless carrier grippers, and
along the convex sides of which the sheets are
65 drawn as they are~forwarded by the sheet trans
curved stationary sheet supports along the con-'
fer and delivery carriers, said sheetsupports par
tially surrounding the. upper sides of their re
spective transfer carriers and located between
them and their sheet collecting and delivery car
70 riers, means for driving the sheet collecting and
are forwarded by the sheet transfer and delivery
vex sides of which the sheets are drawn as they
carriers, said sheet supports partially surround
ing the upper sides of their respective transfer
cylinders and located between them and their
sheet collecting and delivery carriers, means for 70
transfer carriers at the surface speed of the web '
driving the sheet collectingvand transfer carrier
and‘the' sheet delivery carriers at a lesser sur
grippers at the surface speed of the web and the
sheet delivery carrier grippers at a lesser sur
face speed.
i
‘5. Means for cutting sheets from a traveling
.75 web, and a double ?at sheet delivery therefor
face speed.
u
'
-.
HOWARD M. ‘BARBER.
75
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