US2003639A - Printing press - Google Patents

Description

H. A. w. wooDy June 4, 193'."

PRINTING PRESS 9, 1951 3 Sheets-Sheet 1 Original Filed Feb.

/A TToRNEY H. A. W. WOOD PRINTING PRESS June 4, 1935.

Original Filed Feb. 9, 193]. 3 Sheets-Sheet 2 Zug A TToRNEY.

June 4, 1935.

H. A. W, WOOD PRINTING PRESS Original Filed Feb. 9, 1931 3 Sheets-Sheet 3 INVEN TOR. HENRY /l WISE WOOD Patented June 4, 1935 UNITED sTATEs PATENT oFFlcE to Wood Newspaper Machinery Corporation,

New York, N. Y., a corporation of Virginia Application February 9, 1931, Serial No'. 514,376 Renewed April 19, 1934 4 Claims.

The present invention relates to web presses and has for an 'objectto provide a press in which a multiple-impression unit is combined with a plurality of single-impression units.

Another object of the invention is to `provide a printing press with means for printing a plurality of webs in single colors and another web in multiple colors and then interleaving the multi-colored web with the other webs, at will.

It will be understood that by the term singleimpression unit, I refer not only to a printing unit which makes a single impression, but also to a perfecting press unit which prints rst on one side of the web and then on the other, making a single impression on each face of the web. Obviously, however, since the impressions are made with separate plate cylinders provided with individual inking fountains any color of ink may be used and the color of the impression on one face of the web maybe dilerent from that on the other.

In a copending application, Serial No. 512,029, illedv January 29, 1931, since issued as Patent No. 1,970,929, dated August 21, 1934,`I describe a combined perfecting press and multicolor printing unit in which a web after being led through the perfecting unit is passed through the multicolor unit and lreceives a plurality of impressions in different colors. Thus, while one face of the web may be printed in a single color, for instance, black, the other face may be printed with say live colors. In said application, I also provide means' for reversing one press unit with respect to the other so that the multicolor impressions may be made on either side of the web,

' as may be desired. Also in said application I show a plurality of such single and multiplecouples leading to a common folder. In the present invention, however, one multiple-impression unit is combined with a plurality of ordinary perfecting press units, but means are provided to interleave the multicolor web with the other webs in any desired relation. .f

It is also within the purview of my invention to slit the web bearing the multiple-impressions into two or more ribbons and to interleave these ribbons between the other webs at any position desired.

Other objects of my invention will appear in the following description of a preferred embodiment and thereafter the novelty and scope of the invention will be vpointed out in theA claims.

In the drawings;

Figure l is a somewhat diagrammatic s'ide elevation, showing a plurality of ordinary press units and one multiple-impression unit, all feedlng webs to a single folder, with means for interleaving the multiple-impression web between any of the other webs;

Fig. 2 is a plan view of the interleaving appa- 5 ratus;

Fig. 3 is a view in section takensubstantially on the line 3-3 of Fig. 1;

Fig. 4 is a detailed view illustrating a reversing clutch for the multiple-impression unit; and l0 Fig. 5 is a diagrammatic view on an enlarged scale, of the inking mechanism for a plate cylinder of the multiple color unit, illustrating the reversing rolls used in such mechanism.

The printing'press illustrated in the drawings, 15 comprises three-ordinary perfecting press units A, B and C, and a multiple-impression unit D mounted over the unit A. 'I'he construction of the different units A, B and C is substantially identical and a description of the unit A will 20 suflice for the other units'.

As clearly shown in Fig. 1, the unit-A comprises a pair of plate cylinders I0 and II with their cooperating impression cylinders I2 and I3 respectively. Each plate cylinder is provided 25 with the customary inking mechanism. Between the impression cylinders I2 and I3 is a roll,

I 4 about which a web I 5 may be led to the impression cylinders. The direction in which the web is led depends upon whether the rst im- 30 pression is to be made by theplate cylinder I0 or by the plate cylinder H. In the ,full line position shown the web is led about the left hand side of the roll Iland then passes between the plate cylinder I0 and impression cylinder I2. 35 Fromthe latter the web passes around a compensating roll I6 and thence back around the impression cylinder I3 to receive theA impression yon its opposite facel from the plate cylinder Il.

When desired, the course of the web through the 40 unit `may be reversed, as indicated by dotted lines, so that the web after passing about the right hand side of web I4 is led between cylinders II and I3 to. receive its llrst impression, then about a compensating roll I1 and back 45 around impression cylinder I2 to receive its second impression from the platecylinder I0.

The unit A is driven by a motor I8 preferably located above the unit, and a chain belt I9 connects the shaft of the motor to a sprocket on 50 the shaft of the impression cylinder I2.

The multiple-impression unit D which ls 1ocated above the motor I8, comprises a single impression cylinder 20, about which are located four plate cylinders 2|, zla, 2lb, and zlc, 'rae im- 55 pression cylinder 20 is driven by the motor I8 through a chain belt 22 which engages a sprocket wheel 23 on the shaft 24 of the impression cylinder 20. However, the sprocket wheel 23 is not ixed to the shaft, but is adapted to be clutched thereto by a reversing clutch mechanism, so that the direction of rotation of the cylinder 20 may be reversed at will.

As shown in Fig. 4 the sprocket wheel 23 has fixed thereto, a bevel gear 25 which meshes with a bevel gear 26 mounted on a xed stud. The bevel gear 26 in turn meshes with another bevel gear 21 which also turns freely on the shaft 24. A clutch sleeve 28 is spiined upon the shaft 24 and is formed with clutch teeth at each end adapted to engage one or the other of the cooperatively toothed inner faces of the gears 25 and. 21. In the position shown in Fig. 4, the clutch sleeve is in meshwith the gear 21 and consequently the rotation of the cylinder 26 is reversed with respect to that of the sprocket wheel 23. A hand lever 29 is provided by which the clutch sleeve may be slid into engagement with the gear 25 and then the drive would be direct, or, in other words, the cylinder 20 would rotate in the same direction as the sprocket wheel 23.

When the impression cylinder 20 is reversed the inking mechanism for the plate cylinders which coact with the impression cylinder must also be reversed. As showninFig. 5, the particular inking mechanism employed is of a type in which the fountain roll must always .run in the same direction. The apparatus comprises the usual ink basin 30 in which is mounted a fountain roll 3|. A roll 32 is adapted to pick up ink from the roll 3|, and a transfer roll 33 carries the ink from the pick-up roll to the inking drum 34. Thence the ink is distributed by rolls and 36 to the plate cylinder 2|. Because of the regulating blade 31 the rotation of the fountain roll 3| and of the pick-up-roll 32 must .not be reversed. Since the rotation of the plate cylinder 2| is reversed when the rotation of the impression cylinder 20 is reversed, means must be provided for reversing the inking rolls somewhere between the pick-up roll and the plate cylinder. This reversing is effected by providing an auxiliary transfer roll 38. In the position shown by full lines in Fig. 5, the roll 38 is idle, but when the rotation of the cylinder 20 is in counterclockwise direction the transfer rolls are shifted from the full line position to the dotted line position, so that the ink is now transferred from the pick-up roll 32 to the first transfer roll 33 and then to the second transfer roll 38 which leads it to the inking drum 34. Any suitable means may be provided for shifting the position of the transfer rolls 33 and 38.

As shown in full lines in Fig. 1, the web I6, after passing successively about the impression cylinders I2 and I3, is guided past the motor by a set of rolls 40, 4| and 42, and thence is guided by al roll 43 to the cylinder 20, about which it passes in clockwise direction. 'I'he web receives impressions from the plate cylinders 2|, 2Ia, 2| b and 2 Ic in the-order named and thence is guided out of the unit D by the rolls 44, 45 and 46. The web thus receives a single impression on one face from the plate cylinder I0 and flve impressions on the other face from the plate cylinder II and the plate cylinders 2| to 2Ic inclusive.

When it is desired to make the multiple-impressions on the opposite face of the web the latter is led about the right hand side 0f the roll I4 and thence passes ilrst around impression cylinder I3 and then around impression cylinder I2. From this point the web is guided by rolls 41 and 48 and then passes in reverse direction about guide rolls 45, 415, impression cylinder 20, and guide rolls 43 and 42, so that the side of the web which received its impression from the plate cylinder I0 is also printed with impressions from cylinders 2Ic,' 2| b, 2Ia and 2| in the order named, while the other face of the web receives a single impression from the plate cylinder II.

The web I5 after passing counter-clockwise about the impression cylinder 2|! is led from the roll 42 about a roll 49 and up to a roll 50, whence it is led over the unit D to the slitting and interleaving apparatus. If desired, the web which passes through the unit A need not pass through the unit D. In such case the web follows the doted line I5a in Fig. 1 from roll 4| direct to roll 46. As stated above, the units B and C are substantially identical with the unit A but are not provided with rolls I1, 41 and 48 since it is not necessary to reverse the direction of the web passing throughthese units.

'I'he course of the various webs from the different units through the interleaving apparatus may now be traced. The web from unit A which passes through the multiple-impression unit D is indicated by the reference numeral I5, but the web from unit A which shunts the unit D is indicated by the reference numeral |5a. The webs from units B and C are indicated by the numerals 5b and 5c. The web I5 coming either from roll 46 or roll 50, passes over a drag roll 53 and under a slitter roll 54. Another drag roll 55 and slitter roll 56 is provided for the web |5a (should there be such a web). Similarly, a drag roll 51 and slitter roll 58 is provided for the web I5b and a drag roll 59 and slitter roll 60 for the web I5c. The slitter 56 slits the web I5a into two half webs or sheets I 5a.' and I5a". The sheet I 5a passes over the customary compensating rolls 62 and thence over a guide roll 63 to the drag roll 64 of the folder. The other sheet |5a" may be led by the same rolls to the folder or if preferred it may be passed over turning rolls 65 and 66 so as to be directly under the sheet I5a. Compensating rolls 61 are provided for the sheet |5a also, and thence it passes over a roll 68 and on to the drag roll 64. Corresponding turning and compensating mechanism is provided for the other webs I5b and I5c which are slit into half webs I5b'-I5b" and I5c'-I5c", respectively, so that all of these half webs may be brought into superposed relation to the drag roll 64 of the folder.

As shown in Fig. 2 the web I5 is slit into two sheets I 5' and I5, and means are provided for inserting these sheets above or below any of the other sheets. The sheet I5 is turned toward the left, as viewed in Fig. 3, about a turning bar 10, and then passes downward over aroll 1I outside of the other webs. The sheet I5" is turned in the opposite direction about a turning bar 12 and thence passes downward over a roll 18 at the opposite side of the webs. Rolls 18, 19, 80, 8| and 82 are provided at different levels about which the sheet I5' may be introduced above or below any of the other webs or half webs, and turning bars 18a, 19a, 80a, 8Ia and 82a are provided to turn said sheets into parallel with the said half webs.. Similarly, rolls 84, 85, 86, 81 and 88 are provided for leading the Sheet l5" above or below the other'half webs and turning bars "a, 85a, "a, 81a and 88a are provided to turn the sheet I5" back into parallel with the other sheets.

The assembly system is thus very exible and provides a wide variety of interleaving combinations. One of these combinations is illustrated in Fig.2, and by full lines in Figs. l and 3. I'he half web i5b" is turned over a pair of turning bars h and 66h, so that it runs below half web l5b', and similarly the half web lic is turned under the half web I5c. One of the half webs I5 is passed about the roll Il and turning bar a so that it is introduced between the half-webs I5b" and I5c'. Since there are no sheets on the right hand side of the machine, as viewed in Fig. 3, the half web lf must be carried over to the left hand side of the machine. Thus, as shown, the half web I5" after passing about the roller avoids the turning bar 85a, but passes on to the turning bar 19a. The latter is normally set at such an angle that the half web I5", on passing about the bar will be turned rearward, or toward the left in Figs. 1 and 2. The half web l5" must then be passed about a roll or bar 89 to turn it toward the right. The sheet l5" is thus introduced between the half webs I5b' and 85h".

Obviously, the angle of turning bar 19a could be reversed so as to avoid the use of the bar 89, but it is preferable to keep the bar 13a at its original angle so that it can be used for turning a half web I5' forward into parallelism with the other half webs. The turning bars are mounted in the customary manner, so that they may be adjusted as desired. Thus, referring to Fig. 2, the bar 19a, which normally lies directly over the bar "a, must be shifted backward tothe position shown so as to bring the sheet I5" into alinement with the half webs on the left hand side of the machine. Just beyond the turning bars for the sheets I5' and I5" are compensating rolls 90, but where a bar 89 is used. the compensating rolls may be dispensed with.

When the multi-color web is to be laid over instead of between or under the other webs it may pursue the course of the web |5a. The half webs at either side of the machine may be turned under the half webs at the other side by shifting the turning bars. When desired the half webs may continue to the drag roll without turning one set under the other. Hence, two folder forms 9| and 92 are provided for the left and right sheets respectively.

While I have shown a single slitter I4 for the 1. In a printing press, a plurality of perfecting.

press units each adapted to print a web, means for assembling the webs, a multiple impression unit adapted to make a. plurality of impressions on a face of one of the webs, reversing means whereby the multiple impressions may be made on either face of the latter web as desired, and means for introducing the latter web at any desired position in the assembly.

2. In a printing press, a plurality of perfecting A press units each adapted to print a web, means for assembling the webs, a multiple impression unit adapted to make a plurality of impressions on one face of one of the webs, and means for reversing the multiple impression unit whereby the latter web may run in either direction therethrough to receive multiple impressions on either face thereof, and means for introducing the latter web at any desired position in assembly.

3. In a web assembling mechanism, rolls for guiding a bank of webs in mutually spaced superposed relation, a slitter for slitting each web into a pair of half webs, means for turning one half web under the other, a folder for the half webs, means for guiding another web above the bank, a slitter for slitting the latter web into a pair of sheets, means for leading said sheets down opposite sides of said bank, guides for introducing the sheets at any desired position in the bank, and means for turning the sheets parallel with the bank and leading them with the other half webs to said folder.

4. In a web assembling mechanism, rolls for guiding a bank of webs in mutually spaced superposed relation, a slitter for slitting each web into a pair of half webs, means for turning one half web under the other, a folder for the half webs, means for guiding another web above the bank, a plurality of slitters for slitting the latter.

web into a plurality of ribbons, means for distributing said ribbons at any desired position in the bank, and means for leading said ribbons together with the half webs to said folder.

may A. wiss woon. K'

Images