US2183045A

US2183045A - Printing press

Info

Publication number: US2183045A
Application number: US212732A
Authority: US
Inventors: Leroy Q Presby
Original assignee: American Stay Co
Current assignee: American Stay Co
Priority date: 1938-06-09
Filing date: 1938-06-09
Publication date: 1939-12-12
Anticipated expiration: 1956-12-12

Description

L. Q. PREsBY -V PRINTING PnEss Filed 'Juxie '93 A1958 7 'Sheets-Sheet 1 12; 1939. A L.' Q. messy kPMH'JLING PRESS "Filed June 9, 1938 7' sheets-sheet 2 `Dec.v l2, 1939. L. Q. P'REsBY PRINTING PRESS Filed June 9, 1938 7v Sheets-Sheet 3 Dec. l2, 1939.

Filed June 9, 19:58 fr s hets-sheet 4 og @Panes vaey, www ,v WW

Dec. l2, 1939. L. Q. PREsBY 2,183,045

' PRINTING PnEss Filed June 9, 1938 '7 Sheets-Sheet 5 PatentedDec. 12, 1939 o Panes Leroy Q. Presby, Melrose, Mass., assigner to merican Stay Company, East Boston, Mass., a corporation of Massachusetts Application June 3, 1938, @crisi No. 212,332v

3 laims.

My invention relates to printing presses, and is more particularly concerned with means for driving and adjusting the several printing coupls of a press having a plurality of such couples.

The invention will be best understood from the following description when read in. the light of the accompanying drawings of an embodiment of the invention selected for illustrative purposes, the scope of the invention being more particularly pointed out in the appended claims.

In the drawings:

Fig. 1 is an elevation of a printing press according to the invention with parts omitted; FiFigl. 2 is a plan of the press according to Fig. 3 is an elevation, on an enlarged scale with parts broken away, of the press according to Figs. 1 and 2 as viewed from the right;

Fig. 4 is an elevation, on an enlarged scale, of pifralgment of the press unit marked No. 3 of Fig. 5 is a section on the line 5-5 of Fig. 4 with parts omitted;

Figs. 6 and 7 are respectively sections on-the lines @Ii-'6 and 1-1 of Fig. 5 with parts omitted;

Figs. 8 and 9 are sections of the press unit marked No. 2 of Fig. 1 corresponding to the sections shown by Figs. 6 and '1 respectively of the press unit marked No. 3; and

Figs. 10 and 11 are sections of the press unit marked No. 1 of Fig. 1 corresponding to thesections shown by Figs. 6 and 7 respectively of the press unit marked No. 3. i

Referring to the drawings, the press illustrated comprises three printing couples each having a printing cylinder I and cooperating impression cylinder 3, the frame of the Vpress comprising side standards 5 which rotatably support these cylinders. The web W, as shown by Fig. 1, is guided through these printing couples in series, driers' indicated schematically at 1 being provided, if

desired, for drying the ink applied by onev printing couple before the web passes through the next successive couple. As illustrated, the web after it leaves the last couple to the right is guided in an upward direction so as to present a length U of the web, the printed side of which faces an operator standing at that end of the machine and facing the web. For convenience of description the couples and their associated parts are marked No. 1, No. 2 Vand No. 3 from right to left as viewed in Fig. 1.

In the vmachine illustrated each printing cylinder is so supported and driven that it may be adjusted both lengthwise and angularly. Each (ci. ion-isn,

cylinder is driven and adjusted in the same way by substantially the same mechanism, and therefore a description of one will suice for all.'l Referring particularly to Figs. 3' to 7. the printing cylinder i is fixedly carried by a shaft 9 which 5 at opposite ends is rotatably supported in bearings I i carried by the adjacent side standards 5, the shaft being slidable lengthwise in thesebearings. For rotating the several shafts 3 is provided a common drive shaft I3 rotatably sup- 10 ported in brackets I5, a pair of which is carried at theouter side of each standard 5 at one side ofthe press. Splined to this drive shaft between each pair of brackets I5 is a worm i1. Meshi'ng with the worm is a worm wheel I9, the 15 hub 2| of which is rotatably mounted on a spindle 23 carried by a bracket 25 mounted between the brackets I5 on the outer side of the side standard 5. Fixed to the hub 2| of the worm wheel is a spur gear 21, and meshing with that spur gear is a spur gear 29 fixed to the drive shaft of the printing cylinder. By this construction in an obvious manner rotation of the drive shaft I3 is effective to rotate the printing cylinders.

Each worm I1 ls received in a trough-shaped member 3l having end walls formed with perforated bosses 33 slidably mounted on the `drive shaft I3`(see particularly Figs. 5 and 10). As shown, the Worm which is splined to the drive shaft by means of a key 35 carried by the worm 30 and a keyway 31 formed in the shaft abuts at one end with a ball thrust bearing 39 which bears against ,the adjacent boss 33 of the associated trough-shaped member. At its rear the ltrough-shaped'member at one end thereof in- 3 tegrally carries a perforated boss 4I through Which'is screw-threaded a shaft 43. The thrust of the worm wheel I9 against the worm I1 holds the latter against the thrust bearing 39, and rotation of the shaft 43 is effective to slide the 40 trough-shaped member 3I along the drive shaft I3 in either of opposite directions to move the `worm Vwith it. This movement of the worm is effective to rotate the associated printing cylinder shaft 3 in its bearings II.

At the right hand end of the machine arethree

hand wheels

45, 41 and 49 for rotating the shafts. 43 associated with the three units o'f the press. As illustrated in Fig. 6, the hand wheel 45 is directly andflxedly connected tothe shaft 50 43 for unit No. 3. The hand wheel 41 is fixedly carried by a shaft 5I supported by the brackets I5 of the press units Nos.4 2 and 3, as clearly indicated by Figs. 6 and 8. Near its outer end adjacent unit No. 2 the shaft 5I carries a sprocket 55 wheel 53, and the adjacent shaft 43 a sprocket wheel 55, about which wheels passes a sprocket chain 51. By this construction, by rotating the hand wheel 41 the shaft 43 for unit No. 2 will be rotated to adjust the printing cylinder of that unit angularly. The hand wheel 49 in a similar manner is xedly carried by a shaft 59 which is rotatably supported in the several brackets I5 and extends to unit No. 1 where it carries a sprocket wheel 6I, the associated shaft i3 carrying a sprocket wheel 63, While around these sprocket wheels passes a chain 55, so that rotation of the shaft 59 is effective to adjust the associated printing cylinder of unit No. 1 angularly. Referring particularly to Figs. 3, 4, 5 and 7, a projection 61 of each printing cylinder shaft 9 has fixed thereto a sleeve 69 integrally formed with a pair of spaced collars 1I to provide therebetween an annular groove 13. Received in this groove are rollers 15 (Fig. 4) carried alt the inner sides of bifurcations 11 at the upper end of a lever arm 19. The lever arm, as illustrated is pivotally supported on a shaft BI, the shaft extending between the adjacent pair of brackets i5 and at opposite ends being xedly supported thereby (see particularly Figs. 3 and 4). At its lower end the lever is bifurcated, as indicated at 33 (Fig. 4), and between the bifurcations is placed a nut 85 which is plvotally supported by pins 01 carried by the bifurcations. Screw-threaded into the nut is a rod 89 (see Fig. 7), the rod at its opposite end being rotatably received in a bearing 9| and having fixed thereto at opposite sides respectively of the bearing the hub 93 of a bevel gear 95 and a collar 91. As shown, the bevel gear 95 meshes with a bevel gear 99 fixed to the rotatable shaft I0 I, which shaft is rotatably supbearing brackets ment of the rod 99 is prevented the lever 19 thus `will be caused to` swing on the shaft 9| and move the printing cylinder shaft longitudinally in one or the other direction depending upon the direction of rotation of the shaft IOI.

As shown, below the

hand wheels

45, 41 and 49 are hand wheels |01, |09 and III, respectively. As illustrated by Fig. 'l the hand wheel |01 is directly and flxedly connected to the shaft IOI for the unit No. 3. The hand wheel |09 is iixedly connected to a shaft Ii! which is rotatably supported in the bearing brackets I5 associated with units Nos. 2 and 3, and terminates at the first mentioned unit as illustrated in Fig. 9. Adja- Cent the unit No. 2 the shaft I3 has fixed thereto a sprocket wheel II5 about which passes a chain II1, the latter also passing about a sprocket wheel ||9 fixedly carried by the shaft |0| for that unit. Similarly the hand wheel Ii i is fixedly carried by a shaft I2I rotatably supported'in the bearing brackets I5 for the three units. This shaft extends through and terminates at' unit No. 1 (Fig. 11), and by means of the sprocket wheels |23 and |25 and chain |21 is effective for rotating the shaft IOI for that unit. in an obvious manner by use of the hand wheels |91, |09 and III the printing cylinders for the units Nos. 1, 2 and 3 may be independently longitudinally adjusted. a 1,

'me drive shaft la for the several couples may l be driven in any convenient manner as, for example, by the electric motor |29 which through a change speed gear, the casing of which 'is indicated at |3I, drives a pulley |33, the latter being connected by a belt |35 to a pulley |31 on the shaft I9. Longitudinal movement of the drive shaft may be prevented in any convenient manner as, forexample, by means of the collars I 39 (Fig. 6) which cooperate with the adjacent brackets i5.

The electric motor and the change speed gear above described conveniently may be controlled by a switch and gear shifting mechanism readily accessible to the operator standing at the right hand side of the press as viewed in Fig. 1, in which position the printed side of the length U of' the web is visible. By operation of the several hand wheels at that station he may adjust the several printing cylinders lengthwise and angularly so as to secure proper registry of the matter printed by the several couples while the press is rotating at a moderate speed or by viewing the web with a stroboscope or the like while it is moving at a higher speed.

It will be understood that-within .the scope of the appended claims wide deviations may be made from the form of the invention described without departing from the spirit thereof.

I claim:

-1. A printing press having, in combination, a printing couple comprising a printing cylinder, means comprising a longitudinally slidable shaft coaxial with the cylinderv for adjusting said cylinder lengthwise, a lever for sliding said shaft, means for swinging said lever about an axis transverse to said shaft comprising a screwthreaded rod member and cooperating nut member, means pivotally connecting one of said members to said lever, a part carried for swinging about an axis parallel to thev axis of swinging of said lever, the other of said members being supported by said 'part for rotation about an axis transverse to the axis of swinging of the lever, and means for rotating the last mentioned member.

2. A printing press having, in combination, a printing couple comprising a printing cylinder, means comprising a longitudinally slidable shaft coaxial with the cylinder for adjusting said cylinder lengthwise, a lever for sliding said shaft,

means for swinging said lever about an axis4 transverse to said shaft comprising a screwthreaded rod member and cooperating nut member, means pivotally connecting one of said members to said lever, a part carried for swinging about an axis parallel to the axis of swinging of said lever, the other of said members being supported by said part for rotation about an axis transverse to the axis of swinging of the lever, and means for rotating the last mentioned member comprising a gear fixed thereto and a meshing driving gear.

3. A printing press having, in combination, a printing couple comprising a printing cylinder. means comprising a longitudinally slidable shaft coaxial with the cylinder for adjusting said cylinder lengthwise, a lever for sliding said shaft, means for swinging said lever about an axis transverse to said shaft comprising a screw-threaded rod member and cooperating nut member, means pivotally connecting one of said members to said lever, a part carried for swinging about an axis parallel to the axis of swinging of said lever, the other of said members being supported by said bart for rotation about an axis transverse to the said actuating members, which means extend` axis of swingingof the lever, and means for rotating the lastmentioned member comprising a rotatable driving gear coaxial with the axis of swinging of said part.

4'. A printing press having, in combination, a printing couplecomprising a printing cylinder,

` means comprising a longitudinally slidable shaft coaxial with the cylinder for adjusting said cylinder lengthwise, a lever for sliding said shaft,

means for swinging said lever about an axistranspivotally connecting one of said members to said lever, a part carried for swinging about an axis parallelnto the axis of swinging of said lever, the other of said members being supported by said part for rotation about an axis transverse to the axis of swinging of the lever, means for rotating the last mentioned member comprising avrotatable bevel driving gear coaxial with the axis of swinging of said part, and a bevel gear'meshing therewith i'lxed to the last mentioned member.

' 5. A printing press having, in combination, a printing couple comprising a printing cylinder, means comprising a longitudinally slidable rotary shaft coaxial with the cylinder for movingv said cylinder endwise, a lever mountedfor swinging transversely of said shaft, a thrust connection between said shaft and lever, a nut carried by said lever for relative swinging about an axis transverse to said shaft, a rotary driven Vshaft transverse to the axis of said slidable shaft, an arm rotatably mounted on said driven shaft, a rod screw-threaded through said nut, which rod is rotatably mounted on said arm with its axial driving means independently of the printing cylinders of each of the other couples. said separate means each comprising a rotary actuating mem- 50 ber, and a separate means for operating each of from the several couples to a common station past which the web, being operated upon by said couples, is adapted to'pass after it has been operatedv upon by all of said couples; and separate means, comprising.v closely adjacent manually operated members at said'station, for operating said means which operate said actuating members.

7. A printing press having, in combination. a plurality of spaced independent printing couples through which a web is adapted to passv successively, eachvof which couples comprises aprinting cylinder, a common driving means for all of said printing cylinders, separate means at each oi' said couples for adjusting theiprinting cylinder thereof axially and rotatively relative to said drivingmeans independently of the printing cylinders of each of the other couples, said separate means each comprising a rotary actuating member, and a separate rotary shaft for operating each of said actuating members, which shafts extend from the several couples to a common station past which the web, being operated upon by said couples, is adapted to pass after it has means comprises a rotary ,actuating member,` a

plurality ofrotary horizontal parallel shafts-for independently operating said actuating members, which-shafts are carried by said side frames and severally extend in pairs from each of said couples to a common station past which the web, being operated upon by said couples, is adapted to pass after it has been operated upon by all of said couples, and closely adjacent rotary members at said: station for independently rotating saidy sham.

minor Q. passar.