US1152069A - Rotary sheet-printing machine. - Google Patents

Rotary sheet-printing machine. Download PDF

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Publication number
US1152069A
US1152069A US73743212A US1912737432A US1152069A US 1152069 A US1152069 A US 1152069A US 73743212 A US73743212 A US 73743212A US 1912737432 A US1912737432 A US 1912737432A US 1152069 A US1152069 A US 1152069A
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Prior art keywords
cylinder
delivery
sheets
grippers
sheet
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Expired - Lifetime
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US73743212A
Inventor
Howard M Barber
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Cottrell C B & Sons Co
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Cottrell C B & Sons Co
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F5/00Rotary letterpress machines
    • B41F5/02Rotary letterpress machines for printing on sheets

Description

5 SHEETSSHEET I.
Patented Aug. 31, 1915.
wzm
H. M. BARBER.
ROTARY SHEET PRINTING MACHINE.
Q Q 5 Ora 1 m 3H v v n; I MM 3 E J m MN a I P II Q 9 6 mw kw l/lfi m l 9 m 1 W H. M. BARBER.
ROTARY SHEET PRINTING MACHINE. 1,15%69.
APPLICATION FILED DEC. I8. 1912.
Patented Aug. 31, 1915.
5 SHEETSSHEET 3.
H. M. BARBER. ROTARY SHEET PRINTING MACHINE.
APPLICATION FILED DEC. 18. I912.
Patented Aug. 31, 1915.
5 SHEETSSHEET 4.
H. M. BARBER.
ROTARY SHEET PRINTING MACHINE.
APPLICATION FILED DEC. IB. I9I2.
PatentedAug. 31,1915;
5 SHEETS-SIIEET 5.
terrain srarns re QFEEQE,
HOWARD M. BARBER, DIE STDNINGTON, CONNECTICUT, .ASSIG-NOR, BY MESNE ASSIGN- MENTS, To C. B. CDTTB'ELL & SONS COMPANY, OF YORK, N. A CORPORATION OF DELAWARE.
Romany" snnnrrmnrme MACHINE.
Specification of Letters Patent.
Patented Aug. 31, 1915.
Application filed December 18, 1912. Serial No. 737,432.
To all whom it may conccrn Be it known that I, Howann BI. BARBER, a
citizen of the United States, and resident" .lowing is a specification.
This invention relates to rotary sheet printing machines and particularly to that class of machines which may be used for single or multi-color printing and consists in a novel sheet feeding mechanism arranged to feed printing sheets from one source of sheet supply and either printing sheets or slip sheetsiirom another source of sheet supply into the machine, as may be desired.
In single color and in most multi-color work on machines of the class above described, it is seldom, if ever, necessary to use slip sheets between the printed sheets to prevent oiisetting or smutting. Printing sheets may then be fed into the machine from two different sources and thereby double the printed product delivered from the machine as the possible operating speed of a rotary printing machine of this char acter far exceeds the speed of a single feeder. In some instances, it becomes very desirable to deliver a slip sheeted product and slip sheets may then be fed from one of the sources instead of the printing sheets.
In the accompanying drawings, Figure 1 represents in side elevation so much of a rotary printing machine as will give a clear understanding of my invention, the parts being in the position which they assume when printing sheets are being fed from one source to the impression cylinder and slip sheets fed from another source tothe delivery "cylinder of a printed sheet delivery mechanism, Fig. 2 is a detail section showing the cam mechanism for controlling the operation of the grippers on the transfer cylinder when used for slip sheeting, Fig. 3 is a verticallongitudinal central section with the parts in the position shown in Fig.
1 for delivering a slip -sheeted product, Fig.
4 is a vertical longitudinal section taken adjacent to the farther side frame with the parts in the position shown in Fig. 1, Fig. 5 isa view similar to Fig. 1, with the parts in the position which they assume for deli yering a double non-slip sheeted product, lug. 6 s a detail section showing thecam mechanism for controlling the action of the grippers on the transfer cylinder when' used for feeding printing sheets into the machine, and Fig. 7. is a vertical longitudinal central section through the machine with the parts in the position shown in Fig.
5 arranged for delivering a double non slipsheeted product.
The machine is herein shownas having two plate cylinders l. :2. and a single impression cylinder 3 having two impression surfaces 4, 5, and two sets of sheet grippers (3. 7. Two sources of sheet supply are herein shown as tables 8 and 9, the table 3 being arranged to feed printing sheets to the grippers 7 on the impression cylinder and the table 9 being arranged to feed either printing sheets to the grippers 6 of the impression cylinder or slip sheets to the delivery mechanism, as the case may be.
A suitable printed sheet delivery may be provided. that shown herein comprising an endless delivery carrier 10, a printed sheet delivery cylinder 11, a delivery reel 12, and' suitable guides and rollers 13, ll interposed between the endless delivery carrier 10 and the reel 1:2.
The set of grippers on the delivery cylinder 11 is denoted by 15 and the set of grippers on the delivery reel 12 by 16. The sheet feeding mechanism for feeding sheets from the table 9 includes a transfer cylinder 17 and its setof grippers 18.
The table 9 may be raised and lowered for feeding sheets to the upper or the under side oi the transfer cylinder 17, the means I ers 14.
The transfer cylinder 17 is moved into and out of operative engagement with the impression cylinder 3 and the delivery cyl- This gear 28.
inder 11 by bringing the transfer cylinder gear 30 into or out of meshwith the impresslon cylinder gear 26 or nto or out of 1 out of mesh with the impression cylinder gear :26 and the table 9 is raised, the transfer cylinder 17 is arranged to feed slip .p'ression cylinder 3. have shown for raising and lowering the r are removed.
sheets directly to the delivery cylinder 11.
hen the transfer cylinder gear 3.0 is brought into mesh with the impression cylinder gear 26 and out of-mesh with the delivery cylinder gear 27 and the table 9 is lowered, the transfer cylinder 17 is arranged to feed printing sheets directly to the im The means which I transfer cylinder 17 comprises a rock shaft 31, its handle 32 and crank arms 33 connected to the auxiliary frame 3-1, which carries the transfer cylinder 17, through the connecting rods 35. A stop 36 is provided for limiting the rotary movement of the crank shaft 31 when the auxiliary frame 34: has been raised to bring the transfer cylinder 17 into operative engagement with the impression cylinder Removable blocks 37, one only of which is herein shown, are inserted between the auxiliary frame 3% and the main frame of the machine when the auxiliary frame is raised. hen it is desired to lower the frame to bring the transfer cylinder 17 into operative engagement with the delivery cylinder 11, the blocks 37 i The set of grippers 18 on tl'ie transfer cylinder 17 are reversible.'
\Vhen the table 5) is in its raised p sition, a sheet stop 38 isprovided. which sheet stop is operated from a cam shaft 39 through tlierock shaft 40. its armlhthe rock lever 42. the connecting rods 43. H. the rock lever 45 and the cam 46. hen the table 9 is in its lowered-position, the sheet stop 38 is removed and a sheet stop 47 is provided which is connected to the rock lever d2. through the rock lever d8 and connecting rod +19. \Vhen this sheet stop 47' is used, the connecting rod 43 is removed.
A stationary adjustable cam 501 is provided, which cam is mounted in the position shown in full lines in Fig. -l for opening the grippers 18 to transfer slip sheets to the grippers 15 of the delivery cylinder 11 and this cam 50 is shown in dotted lines on Fig. 4 in position to open the grippers 18 to transfer printing sheets therefrom to the grippers 6 on the impression cylinder 3.
A stationary cam 51 is provided for open ing the grippers 15 on the delivery cylinder 11 to receive slip sheets from the transfer cylinder 17 when a slip sheeted product is being delivered.
A stationary cam 52 is provided for opening the grippers-15 on the delivery cylinder only the-set of grippers 7 11 for receiving printed sheets from either both sets of impression cylinder grippers 6 and 7 or from the grippers 7 according to whether a single or double product is being delivered.
A stationary cam 53 is provided for opening the delivery cylinder grippers 15 to A stationary cam 56 is provided for opening the grippers G to receive a printing sheet from the gripperslS on the transfer cylinder when a double non-slip-sheeted product is being delivered.
A 'tationary cam 57 is provided for opening the reel grippers 1G to deliver the sheets onto the guides 13 to be forwarded by the feed rollers 14 to the endless delivery carrier 10.
A sheet stop for the table 8 is denoted by 58, which stop is mounted to swing on a shaft 59 and is normally held in its lowered position by the spring pressed means 60.,
The sheet stop is raised to permit the feeding of a sheet to the grippers 7 and held raised throughout the impression surface 5 by means of a cam 31 mounted to rotate with the impression cylinder 3, which cam engages the rock arm (512 of the said sheet stop. The sheet stop 58 is also raised and held in its raised position to permit the-passage of the next succeeding sheets on the impression surface at when a double product is being delivered, by means of a fixed .cam (33 mounted to rotate with the cylinder 3.
The grippers 7 on the impression cylinder 3 are opened and closed to receive and grasp a printing sheet from the table 8 by a tumbler cam mechanism, the tumbler cam being denoted by (31. the tumbler pins by' (35, 66, the rock arm by 67 and the cam for controlling the rock arm by 68: which cam is fixed on the shaft 69 of the impression cvlinder. The tumbler cam mechanism is shown herein as being arranged to operate 1V hen the grip pers 18 on the transfer cylinder 17 are arranged for receiving slip sheets from the the. gears 7 7, 78. When the grippers 18 are reversed and arranged to receive printing sheets at the under side of the transfer cylinder 17, a second tumbler cam mechanism is provided which includes the tumbler pins 79, 80, arranged to engage the tumbler cam 70, and the rock shaft 81 which is controlled by the cam 71 above referred to. When the tumbler cam mechanism for operating the grippers to receive slip sheets is used, the other tumbler-cam mechanism is removed. lVhen the-tumbler cam mechanism for operating the grippers to receive printing sheets is in use, the rock lever 73 of the other cam mechanism is disconnected from the cam 74 as shown in Fig. 6, and the tumbler pins 71 and 72 are held out of their operative position by .set screws 82 shown in Fig. 5.
lhe support 83 for the rock shaft 81 is preferably carried by one of the spacing blocks 37 so that the cam mechanism may be readily removed with the said block 37. I
lVith the parts in the position to print and deliver a single slip-sheeted product, the
operation is as follows: A printing sheet is fed from the table 8 to the grippers T on the impression cylinder and carried thereby past the plate cylinders and is. delivered to the delivery cylinder 11. during one revolution of the said delivery cylinder. The slip sheets are fed from the table .1 to the grippers 18 on the transfer cylinder 17 and are delivered therefrom to the grippers 15 of the delivery cylinder llthe next revolution of said delivery cylinder. The delivery cylinder 11 successively transfers the printed sheets and slip-sheets to-the grippers 16 of the delivery reel 12 and are transferred thereby to the guides 13 where they are fed by the rollers 14 to the endless delivery carrier 10. When a double non-slipsheeted product is to be delivered. the grippers 18 on the transfer cylinder 17 are reversed as shown in Fig. 7 the cylinder 17 is raised by the hand wheel 32 out ofv operative engagement with the delivery cylinder 11 and into operative engagement with the impression cylinder 3. The spacing blocks 37 are then inserted and the tumbler cam mechanism for operating the grippers in this position is brought into operative position. vT he other cam mechanism is thrown out of its operative position. The printing sheets are fed as before from the table 8 to the grippers T and after the printing operation are trans ferred thereby to the grippers 15 on the delivery cylinder 11 one revolution thereof. Another printing sheet is fed from the table 9 to the grippers 18 on the transfer cylinder 17 and is transferred thereby to the grippers 6. After the printing operation, the sheet is then transferred to the grippers 15 of the delivery cylinder 11' the next succeed ing revolution of the said cylinder 11. The
cylinder 11 delivers to the delivery reelIQ a printed sheet every revolution of the delivery cylinder and the printed sheets are transferred successively from the delivery reel through the guides 13 to the endless delivery carrier 10. In the arrangement of the parts as herein shown, the transfer cylinder and the delivery cylinder are each arranged to travel two revolutions for one revolution of the impression cylinder.
lVhile the parts are herein shown as being arranged when a slip sheeted product is being delivered to have the grippers 15 on the cylinder 11 take a printedisheet and deliver it one revolution and take a slip. sheetand deliver it the next revolution they may easily be adjusted so that every second revo-.
lution of the cylinder 11 the grippers 15 may first take a printed sheet from the grip-' pers (3 of the impression cylinder and then a slip sheet from the grippers 18 of the feeding cylinder and then transfer the associated printed and slip sheets together to the grippers 16 of the delivery reel 1'2. To accomplish this last-named result. it would only be necessary to set the feeding device a full revolution back or in advance of the posi tion where alternate printed and slip sheets are delivered every revolution of the cylinder l1. ll'hcre a double non-slip-sheeted product is being delivered. it will be seen that the delivery cylinder 11 will deliver a .resorted to in the form. construction and arrangement of the several parts without de-- parting from the spirit and scope of my invention; hence I do not wish to limit myself strictly to the structure herein set forth, but
What. I claim is 1. In a rotary printing machine, an im pression cylinder, a delivery mechanism, and a transfer'cylinder arranged to feed from a source of sheet supply either printing sheets directly to the impression cylinder or slip sheets directly to the delivery mechanism.
2. In a rotary printing machine, an impression cylinder, a delivery cylinder and a transfer cylinder arranged to feed from a source of sheet supply either printing sheets directly to the impression cylinder or slip sheets directly to the delivery cylinder.
3. In a rotary printing machine, an impression cylinder, means arranged to feed printing sheets thereto from one source of sheet supply, a delivery mechanism and of sheet supply either printing sheets dif rectly to the impression cylinder or slip sheetsdirectly to the delivery mechanism.
4. In a rotary printingmachine, an .impression cylinder, means arranged to feed printing sheets thereto from one source of sheet supply, a delivery cylinder and means arranged to feed from another source of sheet supply either printing sheets directly to the impression cylinder or slip sheets directly to the delivery cylinder.
5.111 a rotary printing machine, an impression cylinder, means arranged to feed printing sheets thereto from one source of sheet supply, a delivery mechanism and a sheet supply, a delivery cylinder and a transfer cylinder arranged to feed from another source of sheet supply either printing sheets directly to the impression cylinder or slip 7 sheets directly to the delivery cylinder.
7. In a rotary printing machine, an impression cylinder having two impression surfaces and their sets of grippers, means arranged to feed printing sheetsto one set of grippers from one source of sheet supply, a
delivery mechanism and means arranged to feed from another source of sheet supply either printing sheets directly to the other set of impression cylinder grippers or slip sheets-directly to the delivery mechanism.
8. In a rotary printing machine, an impression cylinder having two impression surfaces and their sets .of grippers, means arranged to feed printing sheets to one set of grippers from one source of sheet supply, a delivery cylinder and means arranged to feed from another source of sheet supply either printing sheets directly to the other set of impression cylinder grippers or slip sheets directly to the delivery cylinder.
9. In a rotary printing machine, an impression cylinder having two impression surfaces and their sets of grippers, means arranged to feed printing sheets to one set of .grippers from one-source of sheet supply, a delivery mechanism and a transfer cylinder arranged to feed from another source of sheet supply either printing sheets directly to the, other set of impression cylinder grip pers or slip sheets directly to the delivery mechanism. 2
10. In a rotary printing machine, an impression cylinder having two impression surfaces and their sets of grippers, means arranged to feed printing sheets to one set of grippers from one source of sheet supply, a
delivery cylinder and a transfer cylinder arranged to feed from another source of sheet supply either printing sheets directly to the other set of impression cylinder grippers or slip sheets directly to the delivery cylinder.
11. In a rotary printing machine, an impression cylinder, a delivery cylinder and a sheet transfer cylinder arranged to be brought into and out of operative engagement with either the impression or the delivery cylinder to' feed the sheets either directly to the impression cylinder or directly to the delivery cylinder.
12. In a rotary printing machine, an impression cylinder, a delivery cylinder, a transfer cylinder and means for moving it out of operative engagement with the delivery cylinder and into operative engagement with the impression cylinder for feeding printing sheets thereto, and out of operative engagement with the impression cylinder and into operative engagement with the delivery cylinder for feeding slip sheets thereto.
13. In a rotary printing machine, an impression cylinder, a delivery cylinder, a transfer cylinder, means for moving it out of operative engagement with the delivery cylinder and into operative engagement with the impression cylinder for feeding printing sheets thereto and out of operative engagement with the impression cylinder and into operative engagement with the delivery cylinder for feeding slip sheets thereto and means for supplying either printing sheets or slip sheets to said transfer cylinder from a source of sheet supply.
14:. I n a rotary printing machine, an impression cylinder, a delivery cylinder, a transfer cylinder, means for moving it out of operative engagement with the delivery cylinder and into operative engagement with the impression cylinder for feeding printing sheets thereto and out of operative engagement with the impression cylinder and into operative engagement with the delivery cylinder forfeeding slip sheets thereto, a sheet feeding table and means for moving it into position to feed printing sheets to the under side of the transfer cylinder or slip sheets to the upper side of the transfer cylinder.
'15. In a rotary printing machine, an impression cylinder, means for feeding printing sheets thereto from one source of sheet supply, a delivery cylinder, a transfer cylinder, means for moving it out of operativeengagement with the delivery cylinder and into operative engagement with the impression cylinder for feeding printing sheets thereto, and out of operative engagement with the impression cylinder and into operative engagement with the delivery cyl inder for feeding slip sheets thereto and means for supplying from another source of sheet supply either printing sheets or slip sheets to said transfer cylinder.-
16. In a rotary printing machine, an imimpression cylinder and a slip sheet the next pression cylinder, means for feeding printrevolution from the transfer cylinder. ing sheets thereto from one source, a trans- In testimony that I claim the foregoing fer cylinder arranged to feed either printas my invention, I have signed my name in 5 ing sheets directly to the impression cylinpresence of two Witnesses, this thirteenth 15 der or slip sheets directly to the delivery day of December A. D. 1912.
cylinder, said delivery cylinder being ar- HOWARD M. BARBER. ranged to take a printed sheet every revo- Witnesses: lution thereof from the impression cylinder -A. R. STILLMAN,
1 or a printed sheet one revolution from the E. M. GRANT.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.
US73743212A 1912-12-18 1912-12-18 Rotary sheet-printing machine. Expired - Lifetime US1152069A (en)

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