US1476713A - Chain delivery - Google Patents

Description

Dec. 11, 1923.

C. W. HARROLD CHAIN DELIVERY Filed Sent. 12 1921 arra/d (gar/es W Patente Dec. 11, 1923.

onannnsw. nnnnonn, or CLE E AND, oHIo, nssrenoa'ro Train miners AuroMArfo rnnss COMPANY, or CLEVELAND, OHIO, a oonronnrron or OHIO.

onariv DELIVERY.

Application filedlsepteniber 12,1921. seria11ro.'5o0,0s2.

' To all whom it may concern:

Be it known that I, CnARLns W. HARROLD,

a citizen of. the United States, residing; in the city ofCleveland, in the county of Guyaa hoga and State of Ohio, have invented cer,-'

' tain new and useful Improvements in Chain Deliveries, of'which the following is a spe cifioation, reference being madeto the a'cc0m i tary side view 'showlngone end only'of a pan'yingdrawings, forming apart thereof.

to My invention relates moreparticularlyto certain improvements in delivering mechanisms used in connection with printing or other like machines for-taking sheets or stock from the revolving impression or M transfer cylinders, and transferring same to the chain delivery mechanisms usually employed to carry the successive sheets to a pile-receiving tableat f f The objects of my invention are, among so other things, to provide a simple and eifective attachment for such chaindeliveries whereby the chains carrying-the gripper "bars may be steadied and held firmly in place on their sprockets'when such gripper bars receive sheets from the impression or transfer cylinder of the printing-press. Ex

perience hasshown that when the grippers on the delivery are 'openedr-to receive the leading edge of the sheet, the spring tension- M on their supporting shaft tends to rock or tilt the shaft bearings which are carried and guided only by the more orless flexible supporting chainllink's passing around such delivery sprocket wheels. Suchvibration is undesirably increased at the point where the delivery grippers meet with the cylinder grippers in transferring the sheets so that the edges of the sheet are frequently torn because of such vibration along the line of transfer of the successive sheets. By the use of my improved attachment on such chain deliveriesthesupporting chain links are firmly pressed to the bottom of their c0- acting sprocketteeth at the point of the gripper transfer during the entireperiod the leading edge of the sheet ispassing' from the impression or transfer cylinder to the delivering mechanism proper, 7 thereby steadying the chain delivering bars with these grippers when receiving the successive sheets and also preventingthe likelihood of torn sheet edges.

With these and other objects in view, my invention is shown in a preferred embodiment ofthe accompanying drawings in conjunction'with part of skeleton transfercylinder'of-a" rotary press, the same serving .to fully explain the invention which may s also be employed withlikeadvantages in conjunctionwith the impression-cylinder or other rotary member of a printing or other like machines 7 3 Infthedrawings Figure 1 is a fragmen' Winger-cylinder f-a rotary press equipped Wltlit my improv d ttac v g' rela is an end view thereof;

Figure '3is an enlarged p I fragmentary detail v 7 view looking from the right in,Fig. ,2, of a v portion ofadeliveringchain sprocketwheel,

secured-to 'the' c ylinder by the screws 14 shown in Fig. 1; the bracket 13 carries the radially disposed hollow barrel l'5"within which is slidably-mounted' the plunger: 16

held in predetermined position by the screwlo'olt 17 about which is" coiled the spring 18 bearin on the head of the plunger and also i on the ase of the barrel l5vas shown'in Figs.

1- and 2 normally to. force the point ofthe plunger outwardly until the headiof the bolt f1! contacts with the barrel 15. Similar 'de vices are arranged on the opposite side'of the machine, but it is unnecessary to show or describe same since they are corresponding duplicatesofthose parts shown herein.

Any suitable form'of gripp'ers maybe used, on the-transfer-cylinder 5. In the embodiment shown thegrip'pers 19 mounted I on the rock-shaft 2O coact with the crossbar 21sec ured to the transfer-cylinder as,

shown whereby the' sheet is'fcarried. to i grippers 2220f the delivering mechanism. The grippers 22 are mounted, as 'iscustomary, on the spring-tensionedrock-shaft 23 i Y r which'is journalled'in the bearing 24, and

7' coact with the lug 2 carriedhy the crossrod 26v secured to the bearing 24. Thebearing 24 carries on its outer side the flat plate 27 which isadj-ustahlysecured onthe chain 11 by the pin 's 28and 2-9 as shown in Fig. 4.

Such delivery gripper devices are so located on the chains 11 as to register with the grippers 19 to transfer the'sheets from-the transfer-cylinder 5, with the "plate 27 in substantially; the same plane as the outer plane of the chain 11 as shown in lfig. 2,

and adapted to register with the spring pressed plungerlfi on the cylinderh g,

T v pe ti f my entis 5 11 stantially fasfollows: When the cylindergb,

is revolvlng in a clockwise dir'ectign, the sprocket 710 is rotat ngunxan santleclockywlse direction in Figs.- 1 and; 3 'with chain 11 p s i f o ght to l a a the-deliver sl pp 22 Happe ed bi -th r l devises to take thesheet from the cylinder grippers 19, the projecting headrof the plung'er 16 contacts with;andjyieldingly; bears on,gthe;

1 plate 27 which at once forces theplunger 16 v inwardly in the barrel against the coilspring 1 18 as shown in Figs. "1 and 2.1 The compression .of the spring 18 reacts on, the plate 27 to press the adjacent links ofthe, chain 11 yieldingly but firmly to thev bottom of the sprocket teeth 12 thereby steadying the delivery-grippers 22 mounted on the shaft23 during the entire period such grippers close on theleading edge ofthe sheet which has just been released from the transfer-cylinder or other rotary sheet-carrier, I After-the plate 527 and plunger lfihave passed out; of contact through the rotation of the cylinder -5 and sprocketlO, the headof the plunger '7 projects 'outwardly again, the extent of the projection from the -periphery pfithe' cylinder .5 being regulated and adjusted" by illll screw-bolt 1 7 to meet the requirements in'the varying sizes of cylinders and delivery mechanisms,-

i I g s i As. hereinhefore le'xplainedg-my improved attachment may he used in "connection with tanygrotary or revolvingmember on a printing or like machine coacting with the-chain delivery, and hence may be employed successfully on two ,sheet carriers, for example from the vertical to the horizontal posi tion of the common formof pile deliver-yon V a large printing press; also my attachment may bensed at the-point of transfer from a chain carrier to a "rotating cylinder. Likear ys pri serl essr ise m mounted on. vthe ends of algripper bar in:

stead of the cylinderfi inwhich case both 7 chain carriers wouldbe steadied by being proved attachment may he successfully used vg heneverthe gears? andl8,are in loose mesh i with a certain amount of play between them firmly pressed against, their respective sprockets during the period of transfer of the suc essive sheets. ,At times my imtransferringthe sheet.

r 5 In a deli cry, a p

plunger carried-by said cylinder fo tending toiyary the relative sesame er the successive gripper bars ais they take sheets from the cylinder 5; my spring plunger device under-cuch conditions would actually 7 operate tO steady both the-"cylinder 5 and the gripper bar so that they would rotate "in'u'n'i'so'n while the sheet is being transferred. 7

- ,1 lai ras my int nt lj'ln a dellveryfaf'p'air ofcoacting sheet-' carriers and means mounted on onecarrier .tosteady both carriers 'whil t'rahsfi'iing the area, a

carriers rotating in'gunisonfl andjmfiafis V mounted on one easterly; 56th" (Ear 4 air of catering carriers-and means mounted on oneca'mfierto yieldin g tead the otherfcar'rier while 7 carrie rs. rotatingjin' "unison and m ns mounted on one carrier the other carrier, while transferring the sheet;

11 ca a delivery, a:cylinder'ofia'iprinting or; like machine, sheet carrier'rotatin'g. in 'unison with the cylinder, ,andjiadfistable means carried tyne-Cynt ia steadyfithe carrier while transferringsheets froin'the former to the latter. 7;; a 7. In a delivery, acylinder 'of 'af'prin rotatin' or like machine, a sheet carrier unison with the Jcy1inae anamesh ear ed by e r incle to'yield s ady sarrrier while transferring "sheetgffrom the 3, v

former to the near.

18-. In a d liv a ise i r r like machine, ac sheet carri an; endless chain rotating in cy'liiidenia snrocket for iseiiehaifn, V V

i 1 10 pressing. said chain essaid sprocktg'w ile and means carried [by "said'icylinder; "flor the transferring sheets from the" formers-e latter. I I, ,i I A? 4 la a t -na y?aje l e st a renti or llke machine, a sfheet ear erifompnsing an endless chain rotatin'gfin unison with "the cylinder, a sprocket' for said X and means carried by said cylinderfor'y eld ingly pressing said chain on saidspir'cket A while transferring-{sheets from t le-farmer to the latter. 1 T

10. In saenvery, a eyiisa rtre thing or like machine,- a sheet carrier w en cylinder, 7 a sprocket-for "driving said" and means comprising acf sprin'g-jp a. an endless chain rotating in u'inson'iwrth he i I i I ingly pressing said shaman "said" spreket while 'tra'nsfriing sheets mm "thefoimer' to the'latt'er. a

11. In a delivery, a'cylinder of a printing or like machine, a sheet carrier comprising an endless chain rotating in unison with the cylinder and having sheet-grippers thereon, a sprocket for driving said chain, a plate mounted on said chain in alinement with grippers, and a spring-pressed plunger carried by said cylinder to coact with said plate to press said chain on said sprocket when 1 said grippers receive the sheet.

or like machine, a sheet carrier comprising a delivery, a cylinder of a printing an endless chain rotating in unison With the cylinder,

a sprocket for driving said chain,

means carried by said cylinder for pressing said chain on said sprocket while transferring sheets from the former to the latter,

and means to adjust the pressure of said cylindercarried means on said chain.

7 CHARLES W. HARROLD.

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