US1303326A

US1303326A - Sheet-delivery device

Info

Publication number: US1303326A
Authority: US
Publication date: 1919-05-13
Anticipated expiration: 1936-05-13

Description

4E. P. JENNINGS, Jn. SHEET DELIVERYDEVICE.

APPLICATION FILED Nov. 3,1916.

Patented May 13, '1919.

2 SHEETS-SHEET l- E. P. .IENNINGS,JR.

SHEET DELIVERY DEVICE.

APPLicATloN FILED Nov.3.191s.

1 ,303,326. Patented May 13, 19K),

2 SHEETS-SHEET 2.

1% Arm/@Vir we Nanms wenn: cmpnofwumov. wAsumanm, n, cy

UNITED sTATEs PATENT oEEioE.

EMERSON P. JENNINGS, J R., 0F LEHIGHTON, PENNSYLVANIA.

` SHEET-DELIVERY nEvIoE.

Specification of Letters Patent. l Patented May 13, 1919.

Original application led March 30, 1916, Serial No. 87,725. Divided and this application filed November 3,

1916. Serial No. 129,324.

To all whom t may concern.'

Be it known that I, EMERSON P. `JEN- NINGs, Jr., a citizen of the United States,`re siding at Lehighton, in the county ofCarbon and State of Pennsylvania, have invented certain new and useful Improvements in Sheet-Delivery Devices, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to sheet delivery devices for printing presses and` is designed more particularly for use in connection with the sheet feeding mechanism ofthe ap lication filed by me March 30th, 1916, erial No. 87725-, of which application theV present application is a division. The object of the invention is to provide sheet delivering device which will operate in a highly efficient manner to take the sheet from the press and deliver the same upon a suitablereceiving table, or support; further it is an object of the invention to provide such a device which will be very simple in its construction and operation, `and will be positively operated in timed relation to other parts of the press tocause it to perform its functions. f

It is also an object of the invention to provide such a device which will cooperate with the other parts of a sheet feeding mechanism to automatically feed sheets of paper through the press.

Other objects of the invention will appear as the mechanism is described in detail.

In the accompanying drawings Figure 1 is a side elevationpartly broken away of a printing press showing my invention applied thereto; Fig. 2 is a perspective detail view of the delivery grippers;` Fig. 3 is a sectional view of the gripping device showing one of the movable gripping jaws in detail; Fig. 4 is a sectional view taken vertically to the press showing the invention applied thereto in combination with vother sheet feeding instrumentalities, with the delivery grippers in their retracted position.; andFig. 5 is a similar view with the delivery grippers in engagement with the printed sheet. y

In these drawings I have illustrated the invention as applied to a bed and platen press in which the form-bed moves in a horizontal line toward and from the platen, and

which is equipped with the sheet feeding devices of the above mentioned application, but it will be understood that this particular type of press and sheet feeding mechanism is chosen for the purpose of illustration only and that the present invention may be applied to presses of different kinds, either with or without automatic devices for feeding sheets to printing position.

As shown in the drawings the press as a whole comprises a main frame 1, consisting of side members spaced apart and tied together` by tie rods and connecting devices and serving to support the various parts of the printing and feeding mechanisms. A normally stationary platen' 2 is mounted near one end of the press and a form-bed?) is mounted for movement toward and from 'the platen. In the particular type of press here shown the `form-bed has combined therewith an inking drum 4. The combined form-bed and inking drum is provided at its ends with trunnions mounted in guide Vblocks which` are slidably mounted in the guideways 6 formed in the side walls ofthe main frame 1. These trunnions are connected by pitmen 7 with crank wheels 8 which are here shown as gears meshing with pinions 9 on the shaft 10, to which power may be applied in any suitable manner.

Thelsheet feeding mechanism with which the press is equipped comprises a sheet separating device 11 having a separating member 12 which is suction operated and is actuated by suitable operating devices to turn the edge of the lowermost sheet of a pile of sheets away from the pile and into a position approximately parallel with the face of the 'platen 2. Cooperating with the sheet separating device is a set of conveying grippers 13 which are mounted on a shaft 14; carried by brackets 15, which in turn are mounted `upon vertically reciprocatory rack bars 16. These rack bars also carry camplates 17 which impart turning movement to the sheet separating member Y The rack bars 16 mesh with gears 18 mounted on a transverse shaft 19 and provided with a pinion 2O which meshes with a horizontal rack bar 21 connected at one end to the form-bed 3, preferably by connecting it with one of the slide blocks 5. The conveying grippers 13 engage the down-A Y turned edge of the sheet and move the same into printing position ontlie face ofthe platen, where they release the same andcontinue their movement toa point below the platen and out of the patli-oftlie yform-bed.

The platen grippers 22 are moved into entheplaten. The shaft 25l is provided with a trip iinger26 adapted to be engaged `by a plate27 carried byv one of .the rack bars 165to rock the shaftabout itsaxisand move Vthe supportingngers 24 from` beneath the platen, ,thereby leavingthe Vsheet free to 'move downward. The details yof the constructionA and operation of the several. parts `of the feeding mechanism are not necessary Vto anunderstanding of thespresent iiivention, but a full ldescription of the same will be found in the above mentioned application. Y' l V y The delivery device of the present applica.-

Y Y tion is provided to move the sheet from its printingposition, after it has received the vimpression, and, to deliver the same-to suitable receivingyplatforin, `and -it is actuated from the printing mechanism and is timed to operate Vin synchronisin with the other parts ofthe mechanism. vAshere shown,

this delivery Y.device comprises a series of delivery gripperswhich are tied together in sucha manner that they are caused to operate. as asingledevice.V The grippers may be mounted on any suitable support, or frame, which will permit them to have the necessary movement, and in the present 4construction this frame is shown as comprising a pair of arms 86 which form a swing- YingV frame and are rigidly secureld to a shaft 87, which shaft is connected: with the shaft 19 Vin such a manner that rocking mevement will be imparted thereto as the racks 16 move upA and down. In the present instance, the shaft 87 has secured thereto a sproeketwheel 88 which is connected by meansof a sprocket chain 89 with a sprocket wheel 90 secured to theshaft 19. lThe arms 86 are so shaped that when forward lroe-king movement is imparted to the shaft 87 the ends ofthe arms will be carried to positions beneaththt-i platen,and when rearward rocking., movement is imparted to lthe shaft 87,

the ends ofthe arms will be swung rearwardlyto a position remote from the platen.

The grippers are carried by the lower ends of the arms 8G. In the present construction a bai' 91 is rigidly secured to the arms near their ends and is provided with a series of 'forwardly extending lingers 92 which con- @to cooperate with each finger or fixed jaw 92.

Each movable jaw 94 has a rearwardly extending portion, such as a finger 95, which is rigidly secured to the jaw. The rearwardly extending portions, or lingers, 95, of the jaws are tied together by a bar 9G and each linger extends a short distance beyond this bar. Mounted in the arms 8G, in the rear of the tie bar 96, is a shaft 97 having rigidly secured thereto a series of lingers 98 corresponding in number and arrangement to the rearwardly extending lingers 95 of the movable gripper jaws. The

correspondingingers

95 and 98 are so karranged with relation to each other that they will be in aliiienient one with the other when the movable gripper jaws are in a position between their open and closed positions. Consequently, when the jaws are closed, or

vare fully opened, the fingers 95 and1 98 will be out ofalinement. A spring 99 is coiled about each pair of fingers, 95 and 98, and is soarranged that itstension will be greatest when the fingers are in alinement, hence the springwill tend to hold the lingers out of alinement on whichever side of the center they may have been moved, thereby holding the jaws either in their open or closed positions, as the case may be. Movement may be imparted to the movable jaws in any suitable inanner. As here shown an arm 100 is connected with the movable jaws, preferably by mounting it on the rod or shaft 93 and connecting it with the tie bar 96. By rocking the arm 100 about its axis the movable jaws are moved across their intermediate positions, and their movement is then completed by the springs 99. Any suitable ineaiissu'ch as fixed stops, may he ciuployed, to impart rocking movement to the armA 100, and in the present instance an intermediate device is interposed between the armand its actuating stops. This device comprises a curved aiin 120 mounted on the shaft 97 and having one end pivotally connected with the arm 100 in the rear ofthe tie bar 96. This curved arm extends rearwardly and upwardly and is connected at its upper end, preferably by a pin and slot connection, with an arm 121, which is pivotally mounted and which coperates with the arm 12() to form a toggle.` Preferably, the upper arm 121 of the toggleis mounted on a shaft 122 jonrnaled in bearings carried by the arms` 86, Means are provided 'for imparting rocking movement to the shaft 122, thereby actuating the toggle-to open or close l,the jaws. This rockingmovement is controlled` by the position `of the jaws, and to` this end I have, in the present construction, provided the shaft 122 with a 'trip iinger 123 `which is arranged between two stops, 124: and 125, carried by one of the bearing' brackets 126 for the shaft 87. These stops are so arranged that as the jaws approach the limit of their movement toward `the platen, the trip arm 123 will engage the stop 124 and cause the toggleto be operated to close the jaws, and as the jaws approach the limit of their movement away from the platen, thel linger 123 will engage the :stop 125 to operate the toggle toopen `the jaws, thus releasing thejsheet and allowing'it todrop upon a suitable receivingplatform or table. opening movement of the jaws is limited by aV suitable controlling device, and in the present instance I have provided the arms 86 with guide pins 127 on which the tie bar 96 is guided and which are provided with nuts 128 arranged to :limit the outward movement of the tie -bar and hence the opening movement of the jaws.` i

j The operation of the delivery grippers will be` readily understood from the foregoing descriptionthereof, and it will beapparent that as the form moves away from the platen the -delivery grippers will be moved into a position to receive the sheet and the jaws will be caused to grip the same. As the form-bed completes its outward movement the plate 27 will actuate thesupportingl'devices to release the sheet and as the form again approaches the `platen the grippers will swing downward and withdraw the sheet from the platen in advance of the conveying grippers which are moving a new sheet into printing position.` Asthe delivery grippers approach their rearward position, as shown in Fig. 4, trip armf123 will engage the stop 125 causing the jaws to open and a slight further movement of the grippers moves them out of engagement with the sheet, allowing the same to rest upon the supporting `platforintyI have" `shown and dcscribedia mechanismin which the jaws are opened and closed as they approachthe respective limits of their movement, but it will be understood that the-exact time at which these, operations take place is unimportant so long as the grippers are in proper positionto grip or deliver the sheet. y

The mechanism is verysimple in its construction and of such a character `that it is not liable to get out of order in thejnormal operation of the press,"and it is operated in such a manner as to render the operation positive and to accomplish the same in `synchronism with the movement zof the `other parts of thepress and sheet feeding devices.

The `outward or y "While I have shown and described one embodiment of my` invention I wish itto be understood that I do not desire to be limited to the details thereof `asvarious modifications will occurto a person skilled in the art. ,j

I-Iaving now fully described my invention, what I claim as new and desire to secure `by Letters` Patent is y c y j y i 1. A sheet delivery device comprising a frame mounted` for swinging movement, gripping jaws carried by said frame, a pair of levers pivotally mounted on said frame and connected one to the other and with said jaws and means operated by the swinging movement of said frame to causesaid levers to close said jaws as said rameapproaches one limit of its movement andto openthe same as the trame lapproaches the other limit of its movement. y i l `2. A sheet delivery ,device comprising a frame mounted for swinging movement, gripping jaws carried by said frame,an arm operatively connected with said jaws, and an actuating device mounted on said frame and` operated by the swinging of said `iframe to `cause said arm to `operateto close said jaws as said frame approaches one limit of its movementand toopen said jaws as said frame j approaches the` other limit of its movement. i j

i SQA sheet delivery device comprising a iframe,` mounted `for swinging `movement about a lixed axis, gripping jaws carried by saidframe,an actuatingdeviceior said jaws y comprising alever mounted on said frame, anda trip armconnected with said lever, and stops mounted adjacent` to the; path of said `frame? to engage said trip` arm and causepsaid lever to close said jaws 1asgthe frame approaches one limit of its movement, and ftofopen said jaws as the frame `approaches the other limit of its movementf L 4f. A sheet delivery device comprising a iframe mounted for .swinging movement, a j aw` carried `by said frame at a point "remote from its axis, a movable jaw mounted on said frame to coperate with the first jaw,

and an actuating device `comprising apair of leverspivotally mounted on said `frame and connected one with the other and with said movable jaw and means controlled by themovement of said frame to cause said levers to Amove said movable jaw tow-ard and away from said `first jaw. i

5. A sheet delivery device comprising a movable supporting frame, ajaw` carried by said frame, a secondjaw pivotally mounted on said frame tof coperate with the firstmentioned jaw, Aan actuating device` comprising aA lever connected with said pivotal jaw, atrip arm; connected with said lever, and fixed stops arranged to respectivelyengage said trip arm according to the direction of the movement of said supporting frame, whereby the movement` of said frame will llO cause said jaws to be opened and closed in timed relation to said movement.

G. A-slieet delivery device comprising a supporting frame inounted,` Jfori swinging movement about a fixed ax-is; a jawcarried by said fram-e` at' appoint@ remote` from said axis, a second jaw pivotally mounted o-n said frame to coperate with the first-'mentioned jaw, anactuati-i'ig-arm connected with said pivotal jaw, and means to impart movelment to? said actuating arm lto cause said pivotal jaw-to bemoved into its open or closed position, said means comprising a part mounted on said frame independently of lsa'idcarm'and controlled by the movement ofsaid rtunef-V j Y 'f Y 7. Afsh'eet delivery device comprising -a supporting frame mounted for swinging movement, a jaw carried by said frame at a Ypoint remote from said axis, a second jaw pivotally'y mounted on said framev to coperateV with the first-mentioned aw, air actuating device -for said 'pi-'votal j-aw comprising an arm' connected witlill said pivotal jaw, and

a' trip arm connected withvtheffirst-mentioned arnr,r and v fixed stops arranged; adj acentto the pathof-s'aid frame to engage'sa'id arm and actuate Asaid"'pivotal jav'v`.V

8. A sheet deli-very device comprising Va supporting frame mounted forl swinging Vmovement, aY jawsecured" tosard frame at f that endopposite its axis, another'jaw pivotally mountedon'said Jframe to cooperate with thefirst jaw, a pairr ot pivo-tally connected levers mounted on4v said frame, kone of said-levers havingoperative connection with said pivotalY jaw,. -a` trip arm connectedY with the' other of said levers, and fixed stops artremotef from its axis, one of saidjaws being vmountedV for movement relatively to the other, a1 lever pivotally mounted on said ranged' toengage said trip arm to cause said pivotal jaw to be operated when' said frame is lne/ar' the limit of its movement inv either direction. Y 'j l 1 9.-' AV delivery device comprising a supporting-frame mounted for swinging movement, jaws carried by said frame at a point i frame adj acentto said' jaws and operatively rr--1O.ix`sheet delivery'device comprising a supporting frame mounted for swinging movement, a fixed j 'aw'secured tosaid frame ata point remote from its axis, a second j aw pivotally mounted) on said frame to coperate with'the'lirst jaw, an arm connected with said pivotalljaw,.a lever pivotal-ly mounted on said frame between its ends and having one end operatively connected with said actuating arm,-l asecond lever pivotally mounted on said frame adjacent to its axis and operatively connected with said' firstmentioned lever, a trip armf connected with said second lever,- andy stops arranged to be engagedl by said trip arm as said frame moves toward the respective limits of its movement in either direction'. p

111. A sheet delivery device comprising a supporting frame mounted for swinging movement, a bar secured to' said frame at that endopposite said axis andE having parts constitutingj-aws, pivotal jfaws mounted on said frame adjacent to sai'd bar, atrip arm mounted on said frame near'its axis, and pivotal'ly connected levers mounted on said frame'and connectedrespectively with said pivotal jaws` and said, trip arm, and fixed stopsfarran'ged to engage said trip arm and cause said pivotal jaws to be' operated when said frame is near the limit of its movement in either direction. Y

12. In a sheet deliveryV device, a frame, a jaw mounted on said frame, a second jaw pivotally mounted on said frame to coperate with the first jaw, a finger mounted on said frame, a second? finger rigidly connected with said pivotal j-aw and arranged to be in alinement with the first mentioned linger when said jaw is in position between its closed position and its fully open position, Va spring coiled about said fingers, and an actuating device to move said pivotal jaw across said intermediate position.

13. in -a sheet delivery device, a iframe, a

jaw mounted on said frame, another jaw pivotally mounted onv said frame to coperate withy the first jaw, said pivotal jaw having arearwardly extending finger, a finger mounted on said frame, held against longitudinal movement and arranged to be in alinement with the finger of said pivotal jaw when the latter is in a position between its closed position and its fully open position, and aspring coiled about said fingers.

14. In a sheet delivery device, a frame mounted for swinging movement, a plurality of jaws carried by said frame at a point remote from its axis, a` shaft'journaled in said Jframe adjacent to said jaws, a plurality of jaws carried by said shaft and arranged to coperate with the first-mentioned jaws, an arm connected with said shaft, a trip arm mounted on' said frame at a point remote from said shaft, an operative connection between said arms, and stops to engage said arm as said frame moves from one position to another.

15.*I'n' sheetA delivery device, aV frame mounted for swinging movement, a plurality of jaws carried by said frame, a plurality of other jaws pivotally mounted on said frame and arranged to coperate with 1,303,326 i Ei said first-mentioned"jaws,r means to connect saidpivotaljaws one to the otherto cause them to operate snnultaneously, anactuating arm to impart movement to said pivotal jaws, a trip arm connected with said actuating arm, and stops arranged to be engaged by said trip arm as said frame moves from one position to another.

A16. In a sheet delivery device, a frame mounted for swinging :movement,`a plurality of jaws carried by said frame, a shaft 'journaled in said frame adjacent to said.

jaws, a plurality of jaws carried by said shaft and arranged to coperate with the first mentioned jaws, an armvpivotally supported by said frame and having one end connected with said shaft, a second arm carried by said frame and connected with "the i rst named arm, a trip inger'connected with said second arm, and stops arranged to be engaged by said trip finger as said frame moves from one position to another.

17. In a sheet delivery device, a supporting shaft, means for imparting rocking movement to said shaft, a supporting frame rigidly secured to said shaft, a bar mounted on that end of said frame remote from said shaft and having parts constituting jaws, a plurality of jaws pivotally supported by said frame near the rst jaws, said pivotal jaws being rigidly connected one to the other to cause them to move simultaneously, an arm pivotally mounted on said supporting frame and having one end connected with said pivotal jaws, a second arm mounted on said frame and having a slotted connection with that arm which is connected with the pivotal jaws, a tripping finger connected with the last-mentioned arm, and iixed stops arranged to engage said finger and cause the operation of said pivotal jaws.

18. In a sheet delivery device, a supporting shaft, means for imparting rocking movement thereto, a supporting frame rigidly secured to said shaft, a transverse bar mounted on that end of said frame remote from said shaft and having forwardly extending parts constituting aws, a shaft mounted on said frame in the rear of said bar, a plurality of jaws mounted on said shaft for pivotal movement toward and away from the first mentioned jaws, each of said pivotal jaws having a part extending rearwardly from its axis, a bar rigidly connected with each of said rearwardly extending parts, a lever mounted on said frame and connected with the pivotal jaws, a trip arm connected with said lever, stops to actuate said trip arm as the said frame approaches the limit of its movement in either direction, and a resilient device to hold said pivotal jaws in either their open positions or their closed positions.

19. In a sheet delivery device, a supporting shaft, means for imparting rocking movement thereto, a supporting frame rigidly secured to said shaft, a bar secured to that end of said frame remote from said shaft and having forwardly extending parts :constituting jaws, a shaft mounted on said `away from the first mentioned jaws, each jaw having a rearwardly extending part, a

tie bar rigidly secured to the rearwardlyex-w tending parts of the several jaws `between `their rear ends andtheir axes, a second shaft mounted onsaid frame in the rear of said tie bar,1lingers rigidly secured to said lastmentioned shaftand arranged normally out of alinement with the rearwardly extending parts of the corresponding pivotal jaws and adapted to be moved from one side of their alined position to the other side thereof by the movement of said pivotal jaws, springs coiled about the corresponding fingers and rearwardly extending parts of said pivotal jaws, a lever mounted on said frame and connected with said pivotal jaws, a trip arm connected with said lever, and stops arranged to engage said trip arm and actuate said lever as said frame approaches the limit of its movement in either direction.

20. In a sheet delivery device, a shaft, a frame rigidly secured to said shaft, jaws carried by said frame at a point remote from said shaft, a shaft journaled in said frame, jaws carried by said last-mentioned shaft and arranged to coperate with the rstmentioned jaws, an actuating device coinprising two levers pivotally mounted on said frame and having their adjacent ends connected, one of said levers being connected with the last-mentioned shaft, a trip nger connected with the other of said levers, and stops to engage said trip nger to cause the device to be actuated as said frame approaches the limit of its movement in either direction about the axis of said shaft.

21. In a sheet delivery device, a supporting shaft, means for imparting rocking movement'thereto, a frame secured to said shaft and having its end portion extending at substantially right angles to the body portion thereof and arranged to be moved from a substantially horizontal position to a substantially vertical position by the rocking movement of said shaft, gripping devices ysaid actuating device, and .an operative vcon- ;neetion between said rock shaftV and said form-bed.

fa eonneetion between said shaft and said formfbed to cause rocking movement tobe :imparted tothe fornierfby the reeiproc'atory movement tot the latter,V ak gripper frame .carried by said Shaft and having a portion remote from said shaft. extending atan angleto vthat portion thereof `which is eonneeted directly with said shaft, the end of -said angularly extending portion being arranged to be moved to a position adjacent to the lower edge of said platen when Said rock shaft has moved in one direction, gripper jaws carried by said angularly extending portion of Said frame and means actuated by the movement of said gripper frame t0 cause said jaws to beelosed at a point adjacent to said platen and to be opened at a point remote from said platen.

In testimony whereof I hereunto affix my Signature.

EMERSON P. JENNINGS, JR.

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