US1700128A

US1700128A - Delivery for printing presses

Info

Publication number: US1700128A
Authority: US
Inventors: Charles W Harrold
Original assignee: Harris Seybold Potter Co
Current assignee: Harris Corp
Priority date: 1926-12-29
Filing date: 1926-12-29
Publication date: 1929-01-29
Anticipated expiration: 1946-01-29

Description

C. W. HARROLD DELIVERY FOR PRINTING PRESSES- Filed Dec. 29, 192e 5 sn@etal-"shiae1v `1*- nventoz C. W. HARROLD DELIVERY FOR PRINTING PRESSES Jan.- 29, 1929.

5 Sheets'Shet .5

` Filed Dec. 29, 1926 www Jam. 29, 1929. mooiz C.- W. NARROLDl DELIVERY FIOR PRINTING PRESSES Filed Dec. 29,-1926 5 sheets-sha1 4 Patented Jan. 29, 1929.

UNiTED stares 1.700,128 .PA-TENT oFFlcF.. y

CHARLES W. HARROLD, F CLEVELAND, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TOHABRIS-SEYBOLD-IOTTER COMIANY, OF CLEVELAND, OHIO, A CORPORATION 0F DELAWARE. n

A BELIVERY FOR PRINTING PRESSES.

Application filed December 29, :1926. Serial No. 157,662.

, -l0 combination with any suitable form of delivery mechanisms for taking the 'perfected web including sheet-cutting devices and -a folder whereby when the impression is thrown off the press, the forward travel ofthe web may be simultaneously slowed down to a marked extent through the press and delivery to enable the printing and offs-et cylinders to be run to get up color while the sheet-cutting vand folding mechanisms may also continuein operation, but without actually stopping the forwarding of the web through the press and without printing on such web which is caused to travel slowly through the press and delivery while the web-cutters and folder con- 'tinue. in opeiation. A further ob'ect isto provide-for moving and arranging t e different parts of the web delivery in connection with the slowing downof the forward feed of the web which is under direct control of 3.0 the forwarding devicesy so that the .different functions may be performed without disarranging the press and 'delivery elements or interfering with the threaded web in the press. In like manner when the web-forwarding mechanism is brought back to norinal speed of operation along with the restoration of impression on the press, the web-pulling devices are always held in contact with the web so that the further advancement of the welf through the press with the resumption of the printing and delivery of the web to the cutters is inno way hindered and the amount of waste paper in getting up color is practically negligible. i i

215 With these and other objects in View, my

invention comprises the constructions and' operating parts forming the'press and delivery mechanisms herein shown andheiev aft-er to be`described as one embodiment of my invention, such other features being fully4 l5 a web odset press printing two colors on one the delivery;

a web offset press and delivery embodying side and a' third color on the other side of the web, the same serving to Iexplain the invention which is not restricted, however, to any particular form or type of printing press construction. l

In the drawingaFig. 1 is a side elevation of the improved delivery when the pressis 1n operation and the printed web is beingv carried through the delivery and sheet cutters at normal speed of operation;

Fig. 2 is a side elevation of the upper portion of Fig. 1 when the press is tripped and the web is being slowly forwarded through Fig. 3 is an end view of 70 toward the left; i

Fig. 4 is a top plan view of Fig. 1 showing the clutch for the delivery roller disconnected in normal operation;` Figs. 5 and 6 are detail views of the roch arms for the web-forwarding devices;

Figs, 7 and 8 are detail views-of the idler wheels for the web-delivery roller and their operating mechanismg. Fig. 9 is a perspective View of the supporting bracket for one end ofthe delivery roiler;

Fig. 10 is a detailedend elevation of the disconnected clutch and the delivery roller with mechanism for operating the clutch;

Fig. 11 is a view similar to Fig. 10 showing 5 the clutch in operativeengagement with the delivery roller to rotate saine 'at reduced speed when the press is tripped; and

Fig. 12 is a diagrammatic side elevation of Fig. looking the improvements in conjunction with shee cutters, a folder and end delivery. j

Similar numerals refer to similar parts throughout the several figures.

Referring to Figs. 14, the side-

frames

13 and 14 of the delivery have journalled therein the

shafts

15 and 16 which carry the

cutting cylinders

17 and 18 respectively in which are aiixed :the transverse' coactingcutting knives 19'and 20 for severing the web W inte 100 sheets. The

cylinders

17 and 18 are driven in unison by the intermeshing gears 21 and 2.2 keyed to the shafts' 15y and lrespectively (Fig. l). The shaft 15 is driven by the bevel gear 23 attached to this shaft which gear 23 105 engages the bevel gear 24 fastened to the upper end of the vertical driveshaft25 jour-- nailed in the bracket 26 secured to the sideframe 13. v j y The web Wi is drawn forwardly in the dii lll ` and at the same peripheral speedas that of the

cutting cylinders

17 and 18. Coacting with the web-forwarding roller 27 are two spaced-apart drop rollers 32 and 33 (Fig. 3), which when pressing the web W against the driven roller 27 as'shown in Fig. 1 cause' the web to be pulled by the roller 27 to advance same through the delivery as shown l in Fig. 1.

The

drop rollers

32 and 33 are pinned to I the lower ends of the rock-

levers

34 and 35 journalled on the rock-shaft 36 journalled in the side-frames 13 and 14 (Figs. 1, 3 and 4). Keyed to the shaft 36 on either side of the rock-

levers

34 and 35 are the vertical forked brackets 37 and '38 respectively having the interiorly threaded blocks 39 and 40 at their upper ends. rlhe upper ends 41 and 42 of the rock-

levers

34 and 35 have bores cut therein through which pass the adjustable screw bolts 43 and 44 with their inner threaded ends coacting with the threaded blocks 39 and 40 respectively carried by the brackets 37l and 38. Coiled about the bolts 43/and 44 between thebloclrs- 39 and 40 and lever ends 41 and 42 are the

helical springs

45 and 46 by which the pressure of the drop rollers 32 and'33 'on the web-forwarding roller 27 may be properly adjusted for different grades of paper stock by turning the knurled caps 47 -and 48 affixed to the outer ends of the screwbolts 43 and 44. The

springs

45 and 46 also serve through their variably-regulated tension to control the timing of the coaction of the drop-

rollers

32 and 33 with vthe web W and also their movement therefrom. A. lost motion connection is provided between the

brackets

37, 38 and the arms41, 42 by adjusting the screw-bolts 43, 44 whereby a space is provided between the reduced portion of the--knurled 4caps 47 and 48 and their respective arms 41, 42 (Fig. 1 showing such rock-arm 49 keyed to the shaft 36 whichv 60 'i about its shank 52 the helical spring 53 one end of which bears on the shoulder 54 enconstruction only as to the arm 41 and cap 47). The rock-shaft 36 is actuated by the.

arm 49 carries 'in its outer end the tubular housing 50 (Fig. 5 Passing through the housing 50 is the sli able pin 51hav1ng coiled circling the base of the pin plug end 56,

while the other end of the sprin' 53 hears` against the bottom of the cylin rical 'borecut in the housing 50. The pin plug end 56 is adapted to engage either the upper hole 57v or lower hole 58 formed in the face-plate l 59 of the rock-arm 60 journalled on the rockshaft 36. By this mechanism the

drop rollers

32 and 33 may be placed in operative position against the web W and roller 27 as shown in Fig. 1 with the upper hole 57 engaged by the plug end 56, or the drop rollers 32 and 33l may` be entirely swung away, and held inI inoperative position with respect to the forwarding roller 27 by lowering the rock-arm 49 so that the plug end 56 shall slip into and engage the lower hole V58 so 1 that the

drop rollers

32 and 33 clear the web in all positions of the rock-

levers

34 and 35. rlfhe pin 51 carries the knurled cap 61 (Figs. 5 and 6) so that the pin 51 may be proper-d ly manipulated to shift the plug end 56 from either

hole

57 or 58 to the other as required.

Asshown in Figs. 1 and 2, the web W passes upwardly from the press (Fig. 12) in the direction of the arrows over the compensating roller 62 by which the tension of the web fW as it passes through the delivery is regulated. This roller-62 is pinned to the end of the rock-arm 63 affixed to the shaft 64 journalled inl the side-

frames

13 and 14.

Keyed to the shaft 64 is the'rock-arm 65 having the interiorly threaded block. 66 affixed to its free end. Engaging the threaded block v66 is the threaded tip 67 of the rotatable rod 68 journalled in the bracket 69 and operated by the handle 70 affixed to its lower end (Fig. 1). By this mechanism the operator may suitably adjust the tension of the web W -by shifting the position of the roller 62 in f rotating the rod 68 through the block 66 .in

either direction.

When the press is tripped for any Vreason the web-forwarding devices comprising the driven roller 27 and the drop-

rollers

32 and 33 are separated and let go of the web W, and novel means are provided whereby such web travelling at normal speed shall be simultaneously slowed down under the control o f a positive feed so that such web W may continue its forward travel through the press ius and delivery at a greatly reduced speed thereby preventing the web from backing Vup or becoming misplaced in such delivery and press. In the present embodiment best shown in Figs. 1-4 and 911, the side-

frames

13 and 14 carry the upright bearings 71 and 72 rcspectively in which is journalled 'the crossshaft 7 3 on `which the idler deliveryu roller 74 is `sleeved so as to 4rotate freely on the -shaft 7 3. The shaft 73 carries the bevel gear 7 5 meshing with the bevel gear 7 6 mounted on the short shaft 77 jburnalled in the sleeve bracket 7 8 affixed 'to the side-frame 14 (Fi 3). Keyed to the lower end of the shaft 7g7 is the gear 479 engaging with the worm 80 secured to theA end of the shaft 28 projecting through the side-frame 14.- B

this mechanism the shaft 73 is slowly revolved i at all times inthe normal operation of thev delivery from the positively-driven shaft 28 while the press is in operation.

The delivery roller 74' is held in proper position transversly on the shaft 73 between the side-frames 13 and 14 (Fig. 4) by the bracket 81 (Fig. 9) bolted to the side-frame 13 which bracket 81 carries the forked end 82 which engages and rides in the annular groove 83 cutnear the end of the roller 7 4 as shown in Figs. 4 and 9. The web W passes over the delivery roller 74 before travelling downwardlythrough the Web-forwarding vdevices hereinbefore described, the roller 74 being free to revolve with the same speed as that of the Web W in its foi-Ward travel through the pressanti delivery.

Coacting with idler delivery roller 74 are tivo spaced-apart idler Wheels 84 and 85 pivoted to the inner ends of the rock-levers 86 and 37- rotatably mounted on the rock-shaft 88 which is journalled in the extension brackets 89 4and 90 of the

side frames

13 and 14 respectively, Keyed to the shaft S8 on either side of the rock-levers 86 and 87 are the hori vzontally extending forked brackets 91 andy 92 respectively having the interiori y threaded blocks 93 and 94 on their outer ends. T he

upper ends

95 and 96 of the rock-,levers SC and 87 have vertical bores cut'therein through which pass the adjustable screw-

bolts

97 and 93, With their threaded ends coacting with the threaded blocks 93 and 94 respectively of the brackets 91 and 92 (Figs. 1 and 3).

Coiled about the

bolts

97 and 93 between the f blocks 93 and 94 and lever ends 95 and 96 are the

helical springs

99 and 100 by which the pressure of the Wheels84 and 85 on the delivery roller 7 4 and also the timing of the movement of the

Wheels

84 and 85 against the web W, in conjunction ivith the lost motion connect-ion hereinbefore described, may be suitably regulated by turning the knurled caps 101 and 102 athxed to the ltops of the screw-

bolts

97 and 93. The rock-shaft 88' is actuated by the rock-arm 103 keyed to such shaft and the outer end of the rock-arm v103 carries the tubular housing 104 (Fig. 5). Passing through the cylindrical bore of the housing104 is the slidable pin 105 having coiled about its shank 106 Within the housing bore the helical spring 107 one end of which bears on the shoulder 108 encircling Ythe base 109 of the plug end 110, While the other end of spring 107 beurs against the bottom of the Ahousing bore (Fig. 5). The pin plug end 110 is adapted to engage either the upper hole 111 or lower hole 112 eut in the face plate 113 of the rock-arm 114 journalled on the rock-shaft 33. By this mechanism the

wheels

34 and 35 muy be placed in operative position Tvith the delivery roller 74 (Figs. 2 and 3) When the lower hole 112 is engaged by the plug end 110, or

the wheels 84 and 85' may be shifted and lifted to inoperative position even when the press is tripped Fig. 2), by having the plug end 110 engaget e upper hole 111. The pin 105 carries the knurled cap 115 Figs. 2 and 5) by which the in 105 may e properly manipulated to shift the plug end 110 from l either hole 111 or 112 to meet the requirein Figs. 3, 4, 10 and 11: Slidably keyed to the shaft 73 near the side frame 14 is the clutch.

member 116 having the inwardly projecting lug 117 adapted to engage With the recess 118 Fig. 10) cut in the end of the delivery roller 74 as shown in Fig. 11, at which times the roller 74 is driven in unison Withthe shaft 73 which, in turn, is driven from the shaft 28 as has been heretofore described. When the clutLh 116 is disconnected with the roller 74 (Figs. 4 and 10), the roller 74 freely revolves on the shaft 73 at the same speed as that of the web W. Secured to' the side-frames 14 isthe bracket 119 on which is pinned the bellcrank lever 120 carrying the roller 121 which engages and rides in the annular groove 122 cut in the clutch member 11(Figs. 4 and 10).

keyed Ito the. rock-shaft 88 as shown in Figs. 3 and 4. `When the wheels 8.4 und 85 are. lowered into contact with the web W to press same against the delivery roller 74 When the press tripped (Fig. 2), the link 124 is also lowered to slide the clutch 116 to the left (Figs. 3 and 11) into operative engagement with the roller 74 which is 'then positively driven from the shaft 73. For example, the speed of the web W in normal operation (Fig. 1) may be at the rate of 100 feet per minute', while the speed of the web When driven from the roller74 when positively aca The arm 123 of the lever 120is con. nected by the link 124 to the roclcarm 125 ne p tuated by the shaft 73 in conjunction with the

Wheels

84 and 85 may be as loiv as 4 feetA per minute. Any other suitable ratio may be used so long as the web "W is slowly advanced by the roller 74 when positively driven from the shafts '2S and 73.

The tips of the rock-arms (S0 and 114 are connected by the link 126, and the rodi127 pinned to the' rock-arhi 60 is connected with the throw-ott mechanism of the press shown in Fig. 12. Y

Referring to Fig. 12 the Web offset press therein shown in more or less diagrammatic 'G and a common impression cylinder H, all

of which are of equal diameter and are geared-` together to rotate in unison. Power is supplied to the press from the line shaft 128 carrying the bevel gear 129 meshing with the intermediate gear 130 connected with the gearing on the impression cylinder II. The printing couple C comprises the form cylinder I, transfer cylinder .l and impression cylinder K, all of like diameter and geared together to rotate in unison by power derived through intermediate gear 131 connected with the impression cylinder K and bevel gear 132l aiiixed to the line shaft 128. The form cylinders I), E andI have suitable ink. ing and water dampening mechanisms as shown, while the transfer cylinders F, G and J and the impression cylinders H and K are all mounted in eccentric bearings provided with the usual throw-olf and throw-on mechanisms to trip the press as well as to restore impression in the customary manner by the operation of the trip-lever 133 adjacent the transfer cylinder G. yIhe trip-lever 133 is connected by link 134 to line shaft 135 and the trip mechanismfor printing couple C is connected by link 136 to line 135. The rocking of line shaft 135 when the press is tripped simultaneously lowers the rod 127 connected with my improved delivery as hereinbefore described. The web Vify (shown by `dash and dot line) is fed to the press from the usual paper roll R around the impressioncylinder I-I and thence is led to fprinting couple C' whereby the web'W is per ected with two colors on one side and one ycolor on the reverse side. The printed web is'then passed over suitable idler rollers until it appears on the left side of Fig. 1 to be advancedthrough y my improved web-'slow-down and web-forto the collecting cylinder L and then to thev folder M which deposits the folded sheetson l p f invention or sacrificing thev chief advantages i warding gde'vices hereinbefore described op. eratiiig in" conjunetionwith the cutting cylinders 17 and 1-8. After lthe printed web W has been severed into sheets the latter are carried the yfiati/end delivery N in the usual wayy The operation of my improved delivery in connection with the web offset press shown -in- 12 is substantially as follows: Fig.

1 illustrates the position of the various parts when the press is in operation 'and the web W is running freely over the idler delivery roller 74 with the

wheels

84 and 85 raised to inoperative position, the web beingpulled forwardly by the

drop rollers

32 and 33 pressing the web W against the forwarding roller 27. Such web l/V then drops down in/to the bite of the cutting

cylinders

17 and 18 which severs same into sheets thatarc then carried to the collecting cylinder L, folder M, and end delivery N asv hereinbefore described. When the press is tripped the connecting rod 127 is lowered and pulls down the rock-

arms

60 and 114 which are connected Jby the link 126. This movement throws the

drop rollers

32 and 33 out of contact with the forwarding roller 27 and at the same

time bringsthe wheels

84 and 85 down into Contact with the idler delivery roller' 74 as shown in Figs. 2 and 3, and simultaneously the link 124'is also depressed to throw the clutch member 116 to the left into engagement with the recess 118 (Figs. 3 and 1.1) of the delivery roller 74 to cause same to revolve slowly in conjunction with the shaft 73. As shown in Figs. 2A andy 3 the web W is held by the

wheels

84 and 85 pressing saine against the roller 74 which is slowly revolved ina clockwise direction toadvancc the web throughthe press and delivery. 'Ihis mechanism is timed'by the hereinbefore described lost motion connection and by the inter-adjustment of the

springs

45, 46

und

99, 100 through adjustment of the

screw bolts

43, 44 and 97, 98, so that such wheels 84 and85 come into contact with the web W and roller 74 as soon as the

drop rollers

32 and 33 actually let go.4 .By such means it will be seen that any tearing or crumpling of the web in the delivery is prevented nor does the web W ever back up or become misplaced with respect to the cutting

cylinders

17 and 18 vor the other sheet-manipulating mechanisms which continue in normal operation whilethe press is tripped. The slow feed of the-web renders the amount of lill) waste paper negligible. When the impresthe roller 74 Ais free to revolve again on the shaft 73 as inv normal operation with the forward pulling of the web W through the press and delivery because the drop rollersI 32 and 33 are likewise brought back into webfeeding position (Fig. 1).

While the foregoing sets forth one embodiment of my invention, manychanges in the structural details may be 'made without departing from the principles and scope of the involved.-

I claim as my invention .1. In a delivery for webprinting-presses, means for advancing the web through the 'press and delivery, .means for rendering said .web-advancing meansineifective," and separate means for advancing the web at a different speed when said first web-advancing means becomes ineii'ective.

2. ln a delivery for web printing-presses, means for advancing the web through the press and delivery at the speed of the press, means for rendering said web-advancing means inelect ive, and separate means for advancing said web at a relatively slower speed when said first web-advancing means becomes ineffective.

3. In a delivery for web printing-presses,

-a trip mechanism for the press, means for advancing the web through the press and deliv-` ery, means for rendering said web-advancing means ineffective, and separate means controlled by said press trip mechanism for advancing the web when said first web-advancing means becomes ineffective.

'4. In a delivery for web printing-presses, a trip mechanism for the press, means for advancing the web through the press and deliver f at the speed of the press, means tor rendering said web-advancing means ineffective, and separate means controlled by said 'press trip mechanism Jfor advancingsaid web at a relatively slower speed when said iirst webadvancing means becomes ineffective.

5. In a delivery for web printing-presses,

means fior advancingthe web through the press and delivery and sepaiateA means for imparting a relatively slower forward movement to the web when said first means becomes inoperative.

6. ln a delivery for web printing-presses, means for advancing the web through the press and delivery at the speed of the press and separate means for imparting a relatively slower movement to the weh when said first means becomes inoperative.

7. ln a delivery for web printing-presses, a trip mechanism for the press, means for advancing' the web through the press and delivery, and separate means `for imparting a relatively slower forward movemnet to the web through the delivery when said rstnieans becomes inoperative, both said means being controlled hy said trip mechanism.

8. ln a delivery for web printing-presses, a trip mechanism for the press, means :tor advancing the web through the press and delivery, and means for imparting a relatively slower movement to the web 'through the delivery when said first means becomes inoperative, both said means being simultaneously cont-rolled and actuated by said trip mechanisro.

ln a delivery for web printing-presses,

a trip mechanism 'for the press, means toradvancing the web through the press and delivery at the speed of the press, and separate means for imparting a relatively slower forward movement to the web through the delivery when said first means becomes inoperative, both said means heing interchangeably controlled and actuated by saidA ery-at the speedot the press, means for throwing ott4 said means controlled by said trip mechanism, means for rendering saidwebadvancing means ineffective, and separate means brought into action by said trip mechanism in tripping the press tor imparting a relatively slower Jforward movement of the web whenever said first web-advancing means is thrown out of action.. l

ll. In a delivery for web printing-presses a trip mechanism for the press, means for advancing the web through the press and delivery at the'speed ot the press, means tor cutting the web into sheets beyond said webadvancing means, separate means for imparting a relatively slower forward movementto the web through the delivery when said tirst means becomes inoperative, and operative connections between said trip mechanism and both the web-advancing means to interchangeably control the action of the latter.

12. ln a deliveryfor web printing-presses, means for advancing the web through the press and delivery, separate means for imparting a relatively slower fiorward movenientv to the web when said first means loecomes inoperative,- and means for placing either of said last-mentioned means in inoperative position.

'13. ln a delivery for web printing-presses, means for advancing the web through the press and delivery at the speed ot the press, and separate means tor imparting a relatively slower forward movement to the web' when said first means becomes inoperative, and separate means `for placing each oi said lastmentioned means in inoperative position.

il. ln a delivery tor web printing-presses, a trip mechanism for the press, means for advancing the web through the press and delivery at the speed ot the press, means'tor imparting a relatively slower :torward movement to the web when the press is tripped., both said means being controlled by said trip mechanism, and means for placing either ot said last-mentioned means in inoperative position irrespective ot the press trip mechanism.

l5. ln a delivery tor web printinga trip mechanism tor the pres advancing the web through t ie u livery at the speed ot the pr imparting a relatively slower i ment to the web when the pr hoth said means being conti ned trip mechansm, and separate means for placing each ot` said last-mentioned means in oi erative position irrespective of the lact-ion of said press trip mechanism.

action oi said the web is threaded, means for actuating said printing and delivery devices to porint and forward the web, and means permitting i the actuation of said printing devices without printing and without unthreading the web while forwarding said web at a different speed through the press and delivery.

17. A web printing-press comprismg web prlnting and delivery devices through which the web is threaded, means Jfor actuating said printing and delivery devices to print and forward the web at the speed of the press,

and means permittingthe actuation of said4 printing devices without printing and without .unthreading the, web while forwarding said web at a relatively slower speed through the press and delivery.

18. A web printing-press comprising web printing devices and delivery through which the web is threaded, means for actuating said printing and delivery devices thereby printing and delivering the web, means f or'tripping the printing devices, and separate means for continuing the delivery of the threaded web at a dilerent speed Without printing and unthreding when said printing means is tripped.

n19. In a web printing press, `means for advancing theweb through the press at itsnormal prlnting speed, means for throwing oit' the impression, and means for advancing the web at a different speed when the impression is thrown oft'.4

20. In a. web printing press having coacting printing members, means for advancing the web through the printing members at printing speed, means for separating the printing members, and means for changing the speed of the web when the printing mem'- bers are separated.

21. 1n aweb printing press, means for advancing the web, means for throwing off the impression, and means controlled by said impression throw-off for changing the speed of the web when the impression is thrown off.

CHARLES W. HARRLD.