US1792693A - Pile forming and delivery means - Google Patents

Description

Feb. 17, 1931. s. G. JOHNSON PILE FORMING AND DELIVERY MEANS 4 Sheets-Sheet l Filed Jan. 28, 1928 Feb- 17, 1931- s. G. JOHNSON PILE FORMING AND DELIVERY MEANS 4 Sheets-Sheet 2 Filed Jan. 28, 1928 Feb. 17, 1931. s, Q JOHNSQN 1,792,693

PILE FORMING AND DELIVERY MEANS Filed Jan. '28, 1928 4 sheets-sheet 5 Feb. 17, 1931. s. G. JOHNSON 1,792,693

PILE ORMING AND DELIVERY MEANS 1 Sheets-Sheet 4 Filed Jan. 28, 1928 Patented Feb. 17,1931"l i d I 1,792,593

UNITT'E stars PATENT cinfr'icl: i sEnvAn c. Johnson, or cHIcAso, ILLINOIS l Y rits 'romains AND nnmvanv Application led January28, 1928. Serial No. 250,137.Y v

My invention relates to printing, and in-l receives the impact of the edge ofthe sheet Yof cludes among its objects and advantages the paper as it comes from-the press. provision of an improved pile-forming and After the sheet of paper has been stopped, delivery means. l Y it is desirable to touch it gently on the sides 5 In the accompanying drawings, not in contact with the stop 28, to move it 55 igure 'l is a side .elevation .of a mechanism into perfect alignment .with the pile of sheets according lto the invention, together with the below it. For this purpose, .each of the other adjacent parts Aof a printing press `associated T .bars is provided with a hor-.sing 36 identitherewith; l 'cal with the housing 32, except that there are .10 Figure 2 is a plan view ofthe same mecha no set screws 34. The plates or joggers 38 50 nism; may be duplicates .of the stop 28. The jogger Figure 3 isa fragmentary end view of the rods 40 .extend through the housings 36 and Sam@ carry adjustable transmission heads 42 Figure .4 is a section .on-line Als-f4 of Figclamped in place on the rods by suitable set ii ure 2; Y screws'-44, and veach having transverse .pins 65 Figure is a section on line 5-5 of Figure 46 projecting from the sides thereof. The

@and j rods 40 are made to iit quite loosely in the Figure 6 is Van .enlarged detail of the ccnhousings :3,6 so that theentire j ogger structure nections at the end vof the special conveyor. including the j ogger .38, rod 40 and head 42,

2l) In the embodiment of the invention selected may Y wobble around `and align itself perfectly 7o for illustration, the `device includes pilewith the stop 28 by means of its .contact with forming means; means for receiving and .dethe ypile .of sheets lying against the` stop. livering the formed pile; power .connections .For actuating the joggers, I `provide a for actuating` the `receiving Ameans and 'thev transverse roch shaft 48 and two longitudinal 35 forming means from the movable parts of rock shafts .50 ,connected `to the transverse 7,5 the press; anda special .conveyor means farock shaft by fbevel `gearing 52 at the rear c'i'litating delivery of individual `sheets from corners of .the frame. Each rock shaft carthe press tothe pile-formingineans ries a .crank .arm having a bifnrcated uprlhe pilefforming and .receiving means Aare per endv slotted at 56 to receive the pins 46.

9 su ported in a frame made up of rear upnr By aowing'clearance as at 58 betweenthe 8o rights 10 and front :uprights l2. All the'upends of the Vcrank arms and the heads 42, the rights are simple angle-irons, `and they all joggers may :be pushed toward the center to open toward the center of the frame. They an eytent determinable with fair precision, are connected fat the bottomfby transverse Without interfering inany way with the looser' .35 bracing strips`l4 and longitudinal .anglefiron ness .that vpermits them to wobble and main.- 85

braces 16. 'The sides are .cross braced by tain perfect alignment. dia lrona'lstripsland by horizontal T bars 20 For actuating the j oggerspfrom the" press at tylae top; .Transverse T bars 22 connect the itself as a .source of power, I may provide a oppositesides at the top. vThis leaves ,theencrank arm G0 on the transverse rock shaft 48 419 tire front ofthe frame below .the `level ofthe connected by a VVlink 62 .to an intermediate 90 T bars 20 and 22 open to permit lthe `finished point .64.on a ,cran-k 6.6. This crank 66 may pile :to move out of the frame. When the form pant of .the mechanism of the press frameV is positioned in front of a printing itseflbeing connectedby alinlr68 toa rocker press, it is temporarily connected by braces arm TO or any other suitable oscillating part l5 24 to the-adjacent legs 26 of the press itself. of the press. By connecting the link 62 :to 95 The :pile-forming means illustrated y.comeither qthecrank 6 0 `or `thecra'nk 66at varying prises ,a fixed xplate or stop 28 carried by the distances from the center .of rotation, the end of fa rod v30 passing through a housing 32 total :movement ofthe oggerscan 'be readily on the transverse T bar 22 and fastened in poadjusted. It should be noted that the amount 151? sition by suitable set screws 34. This stop of ybacklash orlooseness inthe .pivotal .con-v le@ nections for the link 62, the intermeshing engagement of the teeth of the bevel gears 52, and the engagement of the pins 46 in the slots 56, is all immaterial and may be very large without interfering with perfect operation of the device. It is only necessary to adjust the link 62 to produce enough motion to take up this backlash or 1looseness and still provide a sufliciently long stroke for the joggers, to produce a perfect result in the formation of the pile. rEhe extreme limit of inward movement of each jogger 38 may be determined accurately since this limit 4is reached when the backlash is all taken up in one direction, and the set screws 44 make precise adjustment a fairly easy matter.

It should also be noted that the bevel gears 52 only rotate through a relatively small fraction of a rotation. When the teeth in engagement become worn, it is a simple matter to loosen the gears on their shafts and rotate them 150 or so to bring fresh teeth into engagement. A very long life for these parts, even when cheap stock gears are used, is thus assured.

The pile 72 formed by the joggers may rest in the first instance on a starting board 74 which, in turn, rests on the top table 76 of a wheeled delivery truck made up of said table and of four wheels 7 8 mounted on the bottom thereof, all of which may be caster wheels if desired. 'Io maintain the top of the pile at a substantially constant level during its formation, it is necessary to lower the table 76 at a slow rate to compensate for the increase in the height of the pile. I have illustrated clips 80 in the form of angle-irons underlying the side edges of the table 76. From each end of each clip a sprocket chain 82 runs up and over a sprocket 84 and down again to a counterweight 86. All four sprockets are connected together to raise or lower the corners or the table in unison, as by mounting the sprockets on each side on longitudinal shafts 88 and interconnecting the shafts by a transverse shaft 90 across the front of the frame, and bevel gears 92 at the front corners.

The connections for'lowering the table at a speed equal to the growth in height of the pile, comprise an actuating link 94 connected to any suitable oscillating part of the press. I have illustrated this link as connected at 96 to the pivot interconnecting the lever 98 with a link 100 employed to actuate one of the rolls 102 of the press itself. This lever is rocked by a cam 104 engaging a roller 106 at the lower end of the lever, the lever being normally held against the cam by a compression spring 108 abutting a bell crank arm 110 projecting rearwardly from the lever.

The front end of the link 94 actuates a crank 112. Referring more particularly to Figs. 4 and 5, the right-hand shaft 88 extends through a worm-wheel 114; through a splined clutch 116 for connecting the worm wheel to the shaft; and terminates in a handwheel 118 provided with a crank handle 120. Below the worm-wheel I support a wormshaft 122 in suitable bearings. The wormshaft carries the worm 124 meshing with the worm-wheel 114; an actuating ratchet 126; and the crank arm 112, the crank arm being free to rotate on the shaft. The crank arm extends both above and below the shaft and at its upper endvcarries a suitable pawl 128 pivoted at 130 and normally urged by a spring 132 into a position of engagement with the teeth of the ratchet 126. rEhe wormywheel 114 is enclosed in a suitable housing 134, and on the face of this housing I mount a shield comprising a vertical plate 136 with a horizontal shelf 138 overlying the teeth of the ratchet 126. The mounting is by means of an arcuate slot 140 in the plate 136 and a fastening screw 142. By moving the shield to various positions around the axis ofthe shaft 122 as a center, part or all of the active stroke of the pawl 128 may be rendered ineffective for rotating the ratchet 126 by holding the pawl out of contact with the ratchet. It is only the last portion of the stroke after the pawl has moved beyond the edge of the shield 138 that will be effective. In this way, a fairly large number of slightly different speeds of lowering may readily be obtained.

I prefer to extend the shaft 122 through the crank 112, and to mount a hand-wheel 144 with a crank handle 146 on the end thereof.

Then the pile is to be delivered, either because it has grown to the capacity of the receiving means, or because the requisite number of sheets for the particular job in hand have been printed, the table 76 is lowered until the wheels 7 8 come to rest on the angle braces 16. slight further movement of the clips 80 will leave them dangling freely just below the edges of the table. The front legs of the front uprights 12 are notched as at 148 to clear the edges of the table and permit the table and pile to roll out of the frame. To make this movement less abrupt, the braces 16 are extended beyond the front uprights 12 and their horizontal legs are separated from their vertical legs by sawing a slot, after which the horizontal legs are bent downward as at 150 to form an inclined track section for easing the wheels of the truck down to the level of the floor supporting the frame.

After the finished pile has been thus removed, an empty truck can be slipped back into the frame. By moving the clutch 116 to the left from the position shown in Fig. 2,

the crank handle can be operated to raise the table quickly to approximately the level desired fer beginning a new pile. Then, the clutch may be moved to connect the wormwheel to the shaft, and the crank handle 146 lli rimaste may be operated to bring the table to the precise level desired. As soon as the Inachine is put in operation, the plate 136 may be shifted to the position necessary for automatic lowering of the table at the speed appropriate for the thickness of paper beingfr delivered by the press.

Thetype of press'illustrated, When it is not used in conjunction with my improved pile receiving means, lcarries a simple table mounted on a support at 152 upon Which the papers passing up the conveyor 154 may fall and accumulate in an irregular pile. The edges of the sheets inthis pile may then be adjusted by hand by standing the pile on edge. When my improved device is to be associated with such a press,` it is impossible to position the table 76 close enoughv to the conveyor 15-1 to receive sheets therefrom because the support 152 is in the Way.

l have provided a detachable auxiliary conveyor'comprising a trame 156 provided with conveying belts 158 of any suitable or desired construction. T his trame is provided with adjustable struts 160 adapted to rest on ,the front end or the support 152, and its sides entend beyond the end of the conveyor belts 158 and are notched as at 162 to take over the stationary shaft 164 carrying the end roller of the conveyor 154. This vend roller may be provided with a pinion l66, and a power connection to the conveyor belts 158 may be established through an idler 168 driving a pinion 170 on'the adjacent end roll tor the belts 15S. The idler 168 and the end roll carrying the pinion 170 are journaled in the frame 156. lt will be obvious that this irame may be set in place on a moments notice and removed again to permit the press to operate with its ordinary table Whenever the nature ot the Work is not such as to require the use ot my pile-forming and delivery means. The edge or' the sheet leaving the conveyor belts 156 may be guided down against the stop 28 by strip of light sheet metal 172. Y Y

TWithout further elaboration, the foregoing Ywill so tully explain my inventionV that others may, by applying current knowledge, readily adapt the same 'tor use under various conditions ot service. It will also be obvious 'that all the features described need not necessarily be employed in conjunction, as they may advantageously be utilized in various combinations and subcombinations.`

YWhat l claim isz- 1. Jogging mechanism comprising a trame, a fixed stop positioned to receive the impact of a delivered sheet, three movable joggers each movable up to a position to abut and define one oi the other sides of the rectangular pile of sheets resting against said fixed plaie, connections Jor mounting said joggers on said frame, said connections being loose to permit said joggers to wobble and align themselves Ywith sadstopi by contact with the pile'ot` sheets, a` variable-.stroke transmission tor moving saidj'oggers toward and' afivay .from theV pile andincluding transmis-4 sion elements-having material backlash, and connections for transmitting the motion oi said transmission to said joggers without limiting the looseness of the inountings, said connections'being adjustable in the direction of movement ot the joggers and in the direction'of tho backlash.

2. Jogging mechanism comprising a frame, a fixed stop positioned to receive the impact of a deliveredsheet, movable 4joggers each movable 11p-toa position to abut and define one ofthe other sides oi the rectangular pile of sheets resting against said iXed plate, connectionsflor mounting said joggers on said vtrame, said connections being loose to permitsaid joggers `to wobble and align themselves With said stop by Contact With the pile of sheets, a variable stroke transmission for movingsaid joggers toward and avvay `from the pile and including transmission elements having material backlash, and connections 1for transmitting the `motion of said transmission to said joggers Without limiting the looseness of 'the mountings, said connections being adjustable in the direction 'oil movement of the joggers.'

Jogging mechanism comprising a frame, a fixed stopn positioned to receive the impact of va delivered sheet,.three movable joggers each mov-able up to a position to abut and define one of the other sides of the rectangular pile of sheets resting vagainst said fixed plate, connections for mounting said joggers .on said frame, said connections being loose to permit said joggers to wobble and align themselves with ksaid stop by con-tact with the pile of sheets, a vvariable stroke transmission for moving said `joggers toward andV away from the ,pile `and including. transmission elements having material backlash., and connections for transmitting the motion of said transmission to said joggers Without limiting the looseness ot' the mountings. .4. Joggingmechanismcomprising a fran'ie, a liz-:ed stop positioned to receive the impactof a delivered sheet, movable joggers each movable up to a position to abut and define one of the 4other lsides of the rectangular `pile of sheets resting against said Vlined plate, connections for mounting said ogo'ers on said frame, said connections being loose 'to permit said joggers to wobble and align themselves with said stop bj1-contact with the pile of sheets, a variable strolre transmission for moving said joggers toward and away from thepile and including transmission elements having 'material backlash.

5. Jogging mechanismcomprising a frame, a fixed stop positioned :to receive the Vimpact et a delivered sheet, movable joggers each movable .up to a position 'to abut and define j one of the other sides of the rectangular pile of sheets resting against said fixed plate, connections for mounting said joggers on said frame, said connections being loose to permit said joggers to wobble and align themselves with said stop by contact with the pile of sheets, and means for moving said joggers toward and away from the pile.

6. Jogging mechanism comprising a frame, a fixed stop positioned to receive the impact of a delivered sheet, movable oggers each movable up to a position to abut and define one of the other sides of the rectangular pile of sheets resting against said fixed plate, connections for mounting said joggers on said frame, said connections being loose to permit said joggers to wobble and align themselves with said stop by contact with the pile of sheets, and variable stroke means for moving said joggers toward and away from the pile.

7. The combination with a printing press delivering individual printed sheets automatically and having a removable receiving table on which said sheets can pile up, of portable jogging mechanism and means for connecting said mechanism with the press mechanism for synchronous operation therewith when said jogging mechanism is placed beyond the end oi' said table, a separate removable conveyor, and means for mounting said conveyor over the position usually occupied by said table and driving it to receive the sheets from the press and carry them over the intervening space to the jogger mechamsm.

8. The combination with a printing press delivering individual printed sheets automatically, or" portable jogging mechanism and means for connecting said mechanism with the press mechanism for synchronous operation therewith when said jogging mechanism is placed beyond the end of said press, a separate removable conveyor, and means for mounting said conveyor at the end of said press and driving it to receive the sheets from the press and carry them over to the ogger mechanism.

9. rlhe combination with a printing press delivering individual printed sheets automatically, and having a receiving table on which said sheets can pile up, of portable jogging mechanism and means for connecting said mechanism with the press mechanism ior synchronous operation therewith when said jogging mechanism is placed beyond the end of said table, a separate removable conveyor, and means for mounting said conveyor over the position occupied by said table and driving it to receive the sheets from the press and carry them over the intervening space to the jogger mechanism.

In testimony whereof, I have signed my name to this specification.

SELVAR G. JOHNSON.

Images