US1651298A - Sheet-delivery mechanism for printing machines - Google Patents

Description

Nov. I

T. R. G. PARKER E A SHEET DELIVERY MECHANISM FOR PRIPiTING MACHINES Fild Nov. 4, 1924 4 Sheets-Sheet 1 Nov'. 29, 1927.

T. R. s. PARKER ET AL SHEET DELIVERY MECHANISM FDR PRINTINGYMACHINES Filed NOV-4, 1924 4 Sheets-Sheet 2 5; 45pm ZZ m W #flyr.

7 Nov. 29, 1927. 1,651,298

T. R. G. PARKER ET AL SHEET DELLVERY MECHANISM FOR PRINTING MACHINES Filed Nov. 4, 1924 4 Sheets-Sheet 3 Nov. 29, 1927.

T. R. G. PARKER ET AL SHEET DELIVERY MECHANISM FOR PRINTING MACHINES Filed Nov. 4, 1924 4 s t 5 4 Patented Nov. 29, 1927.

I I v 1,651,298 AIENT OF ICE;

THOMAS ROBERT eILnEI'r PARKER AND FRED srENoE, or L rRINcIIAIvI; ENGLAND, AssIeNoRs T0 LINOTYPE AND MAoHINERY LIMITED, OF LoNDoN, ENGLAND, A

" BRITISH COMPANY. Y

SHEET-DELIVERY MECHANISM: FOR PRINTI G MACHINES.

Application filed November 4, 1924, Serial No. 747,738, and in Great Britainflovember a, 1923. i I

This invention relates to sheet delivery mechanism for printing machines, and partlcularly to mechanism in whicha reciproeating carriage for delivering the sheets printed stam and fly delivery for delivering the sheets printed side down, may be I alternatively operated in conjunction with main delivery tapes by which the sheets are conveyed from the printing cylinders.

The reciprocating carriage .usually employedin mechanism of this kind, comprises a series of stickson which the printed sheet rests during the outward-stroke of the-car-V riage and from which the sheet is swept on 'to the delivery board by meansof sheetpusher fingers held against the following edge 'ofthe sheet during the inward stroke of the carriage. Apparatus according to the present invention, embodies a known form of reciprocating carriage having a set of endless tap-es, the twopulley'shaftson which are connected by an endless chain passing over sprockets on the'said shafts, chain stop mechanism being provided whereby the chain is held during the inward stroke of the carriage to wind the tapes from beneath the sheet for depositing the'latter on the delivery board; and further, ordinary fly delivery mechanism located above the re ciprocating carriage so that the fly" sticks overlie the latter and act-as sheet guards when the printed side up delive y i m g.

Except. as hereinafter,stated,.the. Inecha-I main deliverytapes 6, whereby their upper eating the carriage, and a cam-operated rack and segment gear for oscillating the fly stick shaft with means for disconnecting the said gear from the-operating ca'mQ Havinglin'view the object of enabling a reciprocating carriage of the last mentioned form to be operated altern-zitivelywith a fly delivery of ordinary form, and enabling the change fromeither' type of delivery to the other to be more expeditiously and con-' veniently' effected than has heretofore been possible, the invention comprisesineans for adjusting vthe position of the main tapes relatively to v the respective delivery mechanisins, and provides for the ready removal, v replacement or adjustment of various parts" J ashereinafter, Enlore particularly indicated.

with the shaft 9.

i The invention will now be described by accornpanylng drawings in,

reference to the which Figurev 1 is an elevation of'sufiic ien tj of a printingmachine to illustrate the present improvements, this viewbeing partlybrohen for delivering the sheets printed side up;

Figure2 viewof part of Figure 1' drawn to a larger scale and showing details frames 1, each provided with two wheelsji view similar to Figure Q-but away and showing the mechanism arranged adaptedto travel along a stationary rail 3,

when motion is imparted to said carriage through levers and links 5; all'these parts are. of ordinary construct on, and as the elevations given in Figures 1, 3 and 4 are all of-the gear side of the machine, only such.

of the said parts as are located at that side, are shown in the drawings. The said parts,

however, and the means for operating them form no part oft-he. present invention, and .for that reason no further description there of is considered necessary. 7

The before-finen'tioned adjustment of the flights may be locate either between and :above the reciprocating carriage tapes ,7 for co-operation'i; therewith, florj between and. above the fly sticks 8 when the fly delivery is operating, is eifected by raising and lower- 7 ing the tape pulleyshaft 9 at the delivery board end of the mechanism. For this pur-j pose the said tape pulley shaft 9 is sup-' ported at each end in the upper end'of an upstanding arm; 10 secured to a so-called connecting shaft 11 extending transversely beneath. c and parallel across the machine The connecting shaft ll is freelysupr portedinja pair of arms 12 secured to a rock shaft 13 which is journalled in the two side I frames 14 of the machine and hasfast ordetaehably secured on one end, a hand lever 15 by which it can hierocked for eifecting the trating both of the arms 18, 19. The arm 19 receives the bolt 20 in a slot 21 which enables the upstanding arms 10 to be adjusted angularly to compensate for any variations arising from the stretching orshrinkin of the delivery tapes 6, the bolt 20 being re eased before, and tightened after, such adjustment is made.

The before mentioned slot ii is arcuate or otherwise shaped so that when the hand lever 151s operated, the tape pulley shaft 9 is constrained to move arcuately about the axis of the tape pulley shatl adjacent to the impression cylinder 25, whereby the delivery tapes 6 are maintained at the same tension 'throughout such operation. The tape pulley shaft 9, however, is so far distant from the shaft and its total extent of adjustment is so small, that the constraint imposed by the slot limay be such that the adjustment o'lthe shaft 9 in a vertical plane. y

For enabling the sheets to pass from the main delivery tapes 6 on to the lly sticks 8 during the printed side down delivery, means areprovided whereby the ends oi the sticks adjacent to the impression cylinder 2 an be lowered so that they shall alight in a plane beneath that containing portions of the tapes adjacent thereto. This result may be obtained by so constructing the rack 50 that it can be adjusted relatively to the mechanism operating it, i. e. intlie direction of its length by which means the toothed segments 51. can be turned anIia-lochwisc about the axis of the fly shaft 25 and correspondingly lower the fly sticks to the desired extent. \Vhen the lily sticks are operating for the printed side down delivery the reciprocating carriage is in known manner disconnected from its operating mechanism and remains at restin a position clear of the delivery board.

Duringthe printed side up delivery by the main delivery tapes (3, the sheets pass closely beneath the fly sticks S which thus serve as sheet guard sticks to prevent the leading edgcs'of the sheet from curling: to

ensure that those edges shall be similarly controlled after they leave the fly sticks,

bent guide fingers Ql are secured to the fly shaft 25 so ans to ensure the sheets correctly reacliing the sheet stop lingers 26. \Vhile in the COnClltlOIl or working last described, the rack 50 is in the well-known manner disconnected from its operating cam so that the fly sticks remain at rest. The guide fingers 9st and the sheet stop lingers 26, are re quired only during the printed side up delivery operation of the apparatus, and for that reason both of these devices are readily removable for enabling the conversion from that delivery to the printed side down delivery. To that end the guide lingers Q l, as shown in dotted lines in l igure 2, are each secured to a shoe or clamp 2Twhich can be rigidly attached to, and readily detached from, the [ly shaft :25 as by a bolt or screw and the rod 25) carrying the sheet stop lingers 26, is, a is already well known in the art, held in ope 'ative position by means of couplings which, when detached, as can easi ly be done, permit the said rod 29 together with the lingers 26 thereon being removed from the machine as a single entity.

The present invention further involves provision whereby the sheet uard lingers ill! at the receiving end of the maindelivery tapes [3, the lly eticli rest rod til, and the delivery board 3:3 can be adjusted to accord with the cl'ianges from one to the other type at delivery. For example, the rod 33 on which are carried the sheet guard fingers 30, may be :uljuslably mounted in stationary slotted. arms Ell so that they can be moved into intcrlap 'iing relationship with the free ends or the by sticks 8 as indicated in Fig are l. to co-operate with those sticks in gulch ing the sheets during printed side up delivery, and out or such relationship as when the said sticks are operated for delivering the sheets printed side down.

The fly s ick rest rod 31 is mounted in two 'lorhed arms 23:3 pivoted upon stationaryroaxial pivots :36, so that they may be moved into a position to enable the rod to fullill its normal function as a rest rod for the fly sticks during the intervals at which the latter are receiving the sheets preynu'atory to swinging them printed side down on to the delivery board 39,. During printed side up delivery, the rod ill may be rinnovcd and the arms 35 moved into the lower position, The extent of adjustnient ol. the arms 35 is detern'iined by stationary stops 3? with which a block 37 operatively fast to said arms 35 engages. The rod. Ell is secured to the arms with a capacity for ready detachment so that it can be disconnected from the arms prior to their being moved from the upper to the lower of their terminal posi tions, and re-instated therein if" desired, after the completion of this movement.

The before-mentioned adjustment of the delivery boa rd 82, is provided tor by sup portlngsaid board, at its inner end, alter-1 nativcly in one or other of twopairs of hooks secured in brackets-41 fast to thedeliveryv board, and bearing on brackets 42 fast to the rails -3,-the deli-very board being clamped to-the pins at any desired height by any convenient means such screws 40 I as the clamping 43 is the before mentioned sprocket chain I which controls the operation of the delivery carriage tapes 7 44 is the chain stop which engages with the" chain 43; 45-is the rock shaft which carries the stop 44; 46 isa togglearm fasten the shaft 45, which co-oper- "ates with a sec'ondtoggle" arm 47 to retain,

under the influence ofa spring-48,' the chain stop 44 in its terminal position until it is positively moved therefrom; '49 are two ad justable stops for limiting the motion of the toggle arm 46 and chain stop'44, and 50 is vention. 7 Y

the-rack and '51 the segment meshing therewith'for swinging the fly sticks '8; all of these elements are of ordinary construction and constitute nopart of the present in- Having described our invention, we declare' that what we claim and desire to secure by Letters Patent is z 1. In sheet delivery mechanism for print ing machines, the combinationof a set of main delivery tapes, a reciprocating delivery carriage having endless "carriage tapes reciprocating therewith adapted to receive sheets from the main-delivery tapes and deposit them printediside up onthe deliveryboard, and a' set of fly sticks adaptedto receive sheets from the main delivery tapes and deposit them printed side down directly I onthe delivery board when the reciprocating deliverycarrage is inoperative.

I adjust the main delivery tapes-so that their upper flights shall travel either above the fly sticks or in a plane between thejsaid fly' 2. Sheet delivery mechanism according to clairn'l, characterized by means adapted to 7 sticks and the plane in which travel the .upper flights of the carriage tapes. 7

3. In sheet deliverymechanismfor printing machines, the combination-of a setof j main delivery tapes, a reciprocating delivery carriage having endless carriage tapes reciprocating therewith adapted to receive sheets fron the main delivery tapes and depositthem printed side up on'the delivery board, a set of fiy sticks adapted to receive sheets from the main delivery tapes and deposit them printed side downdirectly on the delivery board when the reciprocatingdelivery carriage is inoperative, and means adapted to adjust the main; delivery tapes I so that their upper flights shall travel in a plane between the fly sticks'and theplane in which travel the upper flights of the carriage tapes-when the fly sticks will serve as guards to prevent curling or displacement of the sheets while on said main delivery tapes, or'above the fly sticks. 1

In sheet delivery mechanism for print-.

ing machines, the combination with devices accord ng'toclaim lot a fly stick jrest rod,

and means adapted to support said rod with a capacity torremoval' frombelow thefly' sticks when the printed side up delivery is in operation. 1

5. In sheet delivery'mechanism for print- 7 ing machines, the combination of a set of board, means adapted to adjust the main de-;

livery tapes so that their upper flights shall travel in a plane between the fly sticks and the plane in which travel the upper'flights of the carriage tapes when the fly sticks will serve as guards toprevent curling or wholly V displacement of the sheets while on said V main delivery tapes,'or above-the fly sticks,

' andmeans adapted to support-the delivery boardwitha capacity for vertical adjustment correspondingwith changes in the height of the main delivery tapes. V

6. I In sheet delivery mechanism for printing machines, the combination of a set of maindeliverytapes, a reciprocating delivery carriage having carriage tapes rec-iprocating bodily therewith adapted to receivesheets from the main delivery-tapes and deposit them printed side up on the delivery board, a set of fly sticks adapted to receive sheets; from the main delivery tapes and deposit them printed sidedown' on the deliv- Y ery board, and sheet guidefingers and means detachably securing said fingers ,to the fly shaft. I

7. In sheet delivery mechanism for printing machines, the combination with reset of main delivery tapes,two sets of pulleys about which these tapes travel, one set at the delivery board end and the other set at the receiving portions of said tapes, a reciproeating carriage, and a set of endless tapes reciprocated bodily with the carriage and adapted to'receivethe sheets from the main delivery tapes and deposit them printed side up on thedelivery board, of means adapted to raise andlower the set of main delivery, tape pulleys located at the delivery end of said tapes. 7

8. In sheet delivery mechanism for printa ing machines, the combination with a set of main delivery tapes, two sets of pulleys about which these tapes travel, one set at'the deliveryboarden'd and the other setat the receiving portions of said tapes, a recipro- 1 eating carriage, and a set of endless 'ta-pesrewith the carriage and 130.

ciprocated bodily I adaptedto receive thesheets from the main delivery tapes and deposit them printed side up onthe delivery board, of means adapted to raise and lower the set of main delivery tape pulleys located at the delivery end of said tapes and means constraining these movements to a circular arc concentric with the set of main delivery tape pulleys at the receiving portions of said tapes.

9. In sheet delivery mechanism for printing machines, the combination with a set of main delivery tapes, areciprocating delivery carriage having endless carriage tapes recipro 'ating therewith adapted to receive sheets from the main delivery tapes and deposit them printed side up on the delivery board, a set of fly sticks adapted to receive sheets from the main delivery tapes and deposit thein printed side down directly on the deliveryhoard when the reciprocating de livery carriage is inoperative, a set of pulleys about which the main delivery tapes travel at theirreceiving portions, and a secondset of pulleys at the delivery hoard end of the mam delivery tapes, of a tape pulley shaft carrying this second set of pulleys, arms supporting this tape pulley shaft, a connecting shaft parallel with that last mentioned, to which the arms are secured and means a'da ted to raise and lower the connecting shaft, of a lock armloose on the connecting shaft, means adapted to secure a said lock arm in different positions of adjustment of the connecting shaft, an arm fast to the connecting shaft adjacent the lock arm and screw-and-slot connections adapted to secure the two last-named arms in different relative angular positions.

10. In sheet delivery mechanism for printring machines the combination with a set of main delivery tapes,a reciprocating delivery carriage having endlesscarriage tapes reciprocating therewith adapted to receive sheets from the main delivery tapes and de posit them printed side up on the delivery board, a set of fly sticks adapted to receive sheets from the main delivery tapes and deposit them printed side down directly on the delivery board when the reciprocating delivery carriage is inoperative, a set of pulleys about which the main delivery tapes travel at their receiving portions, and a second set of pulleys at the delivery board end of the main delivery tapes, of a tapepulley shaft carrying this second set of pulleys, arms supporting this tape pulley shaft, a connecting shaft parallel with that last mentioned, to which the arms are secured and,

means, adapted to raise and lower the con, necting shaft, of a lock arm loose on the con necting shaft, means adapted to secure said lock arm in dillerent positions of adjust ment of the connecting shaft, an arm fast to the connecting shaft adjacent thelock arm,

screw-and-slot connections adapted to se cure the two last-named arms in different angular positions rciativelyto the connect ing shaft, and means const 'ainin the rats ing and lowering movements of the tape pulley shaft to a circular arc concentric with the set of main delivery tape pulleys at the receiving portions of said tapes.

ll. Sheet delivery mechanism accordin to claim 1, characterized by means adapted to adjust the main delivery tapes from a po sition in which their upper flights are in a plane below, that occupied by the upper llights of the carriage tapes to a position in which this relationship of, said upper flights is reversed. i i

In testimony whereof we have affixed our,

signatures hereto.

moms Ronni cuuzrr PARKER. FRED srsuca.

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