USRE13850E - Sheet-deliveby apparatus fob plftnting-machines - Google Patents

Description

H. M. BARBER. v SHEET DELIVERY APPARATUSJOR PRINTING MACHINES. APPLIOATION FILED JULY 30 1914 Relssued Dec. 22, 1914.

H. M. BARBER. SHEET DELIVERY APPARATUS FOR. PRINTING MACHINES, APPLICATION FILED JULY 30, 1914. Relssued Dec. 22, 1914.

13,850. 8 SHEETS-SEEET 2.

H. M. BARBER. SHEET DELIVERY APPARATUS FOR PRINTING MACHINES.

.H. M. BARBER. SHEET DELIVERY APPARATUS FOR PRINTING MACHINES. 7 APPLICATION PILJD JU Y 30, 1914. Relssued Dec. 22, 1914.

13,850. E SHEETS-E-HEET 6.

. A @NQ mow ARV. ww Nx @MW H. M. BARBER. I SHEET DELIVERY APPARATUS FOR PRINTING MACHINES.

Reissued Dec 22, 1914.

APPLICATION FILED JULY 30, 1914 BARBER. VERY APPARATUS FOR- PR1 WING MACHINES.

813E131 DELI 4 APPLIGATION LBD JULY 30. 1914 Rexssued Dec. 22, 1914.

1 3,850. 8 HEEIS-SHEET 6.

i. 1 1 r r H. M. BARBER. SHEET DELIVERY APPARATUS FOR PRINTING MACHINES. APPLIGATION IILED JULY 30. 1914.

Reissued B90122, 1914. 1 3,850.

B SHEETSSHEET 7.

H. M. BARBER.

I SHEET DELIVERY APPARATUS FOR PRINTIRG MACHINES.

Reissued Dec. 22, 1914.

APPLICATION FILED JULY 30,1914.

v V w M Z n 2 Q a W n AM L L EA N Delivery Apparatus for Printing-lvlachines,

UNITED STATES PAEENT OFFICE.

HOWARD M. BAnnnn, or STONINGTON, CONNECTICUT, AssIGNon, BY'MESNE AssIGN MENIS, r0 0. n. COTTRELL AND soNs ooMrANY, or WILMINGTON, DELAWARE, A.

CORPORATION OF DELAWARE.

- SHEET-DELIVERY APPARATUS FOR PEINTING MACHINES.

Specification of Reissued Letters Patent. "Reissued Dec, 22, 1914 Original No. 1,094,048, dated April 21,. 1914, Serial No. 500,878. Application for reissue filed July 30, 1914.

' Serial No. 854,181,

1 i) all whom it may concern: 7

Be it known that I, HOWARD M. BARBER, a citizen of the United States, and resident of Stonington, in the county of New London and State of Connecticut, have invented new and useful. Improvements in Sheetof which the following is a specification.

The object of this invention'is to provide certain llllPlOVCl'llGlltS 1n the construction,

.form and arrangement of the several parts of a sheet delivery apparatus for prnitnig machines whereby the sheets may be deliv-- cred either with their freshly printed sides up or with their freshly printed sides down as may be desired, without requiring the use of a fly and its operating mechanism.

This inventionroinprises a sheet delivery apparatus which includes an endless delivery carrier arranged to receive the sheets one side up and deliver them the same side up or the other side up as may he desired.

This invention further comprises means for driving the endless delivery carrier in either direction and means for feeding the sheets to the under side of the carrier when it is caused to travel outwardly, for depositin;' the sheets prlnted side up or for teedlng the sheets to the upper side of the carrier when it is caused to travel outwardly, for ('.l(,1l(l$ltlll},f the sheets printed side down, the

carrier grippers being made readily reversi bio and their operating cams being suitably arranged lo insure theproper action of the grippers for receiving, conveying and de.

positing the sheets. I

in the embodiment of the invention shown herein. the endless delivery carrier is raised ulni lowered to bring its grippers into the (lLE-Qi? 1! position to receive the sheets as'they urr' l'rii lo the under or upper side of the carrier.

The means for :t'eedingthe sheets to the (HllKr-s delivery carrier of the sheet delivery.

apparatus shown herein comprises an inlcrnlil lcnlly driven godless tape earner, the

lop side oi which runs ahead when receiv ing the sheets irom the press for presenting the shorts to the carrier grippers. Asthe carrier grippers close down upon thesheet,

the tape (warrior ceases to travel-and it remains at rest while the sheet is being drawn outwardly by the carrier grippers.

The endless delivery carrier is herein shown as endless cha1ns,.wlnch chams carry the bars of the carrier grippers, which grlpper bars may be reversed so as to present the grippers properly as the movement of the carrier is reversed.

In the accompanying drawings, the inven tion is shown in connection with a two revolution cylinder printing machine, but it is to be understood that it may be applied to printing machinesof any type.

Figure 1 is a side view of portions of a two-revolution cylinder printing machine having applied thereto the improved sheet delivery apparatus, the parts being in the plane of the line A- A of Fig. 2, Fig. 4 is an eularged detail section taken in the same plane, the grippers and their operating cams on the near side of the machine being left in position, Fig. 5 is a section similar to Fig.

.. l, showing the endless delivery carrier lowered for receiving the sheets upon its upper side, the upper side oi'the carrier belng arranged to travel outwardly so that the sheets may be laid first outwardly along the upper side and then inwardly along the lower sides' for depositing the sheets upon the table printed side down, Fig. 6 is a fragmentary section showing the grippers released for permitting the withdrawal ofasheet by hand as the sheet nears the. outward limit of its movement along the upperside of the endless carrier,- Fig] 7jis a. detail section showing the position which the parts assume when a sheet is being withdrawn by hand from the delivery apparatus, Fig. 8 is a partial top, plan view showing the spring for no-rn'ially holding the sheet engaging ln-ushes at the limit of their downward movement, Fig. 9 is a view similar to Fig. 7

showing the position-oil the parts when the I cam tor-opening the! grippers [at the outer- 1' end of the endless carrier to permit the manual removal of a sheet, is moved'out of its operative position, and showing the cam for raising the brushes to permit the passage of the advance edge of the sheet, in its oper- Fative position, Fig. is a detail view in side elevation showing the driving gears for the endless delivery carrier arranged for moving the under side of the carrier outwardly where the sheet is to be deposited printed side-up,-Fig..11 is a detail view in elevation partially in section of the same, Fig. 12 is a detail end view partially in section showing the parts in the position which they assume when the endless carrier "has been lowered for reversing the move- 'inent of the carrier to deposit the sheetsvprinted side down, Fig. 13 is a detail section show ng the gearing for imparting the intermittentmovement to the endless tape "carriers, Fig; 14 is atop plan view of the v 18 is asection taken in same, F ig. 15 is 'a section taken in the plane of the line BB of Fig. 13, Fig. 1.6 is a section taken in the plane of the line'C-C of Fig. 15 F igi 17 is a section taken in the plane of the line D-D of Fig. 15, and Fig. v the plane of the line E-E of Fig, 15.

In the portion of the printing press herein shown, the form cylinder is denoted by land 'its impression cylinder by 2. The form cylinder gear3 is driven from a gear 4 on the drive shaft ,5, which shaft is driven from a suitable motor 6. The cam shaft 7 is driven from the form cylinder 1 through the gears Sand 9. The sheet receiving table 10 is supported upon four screws 11 having worm and gear connections 12 and 13 with shafts 14 driven from a cross shaft 15 by a bevel gear connection-16, 17. This cross shaft 15 has a worm and gear connection'l8, 19,-With a shaft 20,'the latter being driven from a shaft said shaft 21 being driven from the cam shaft by gears 24, 25. This train of gear- ,ings servesto gradually lower the table as the sheets are deposited thereon for keepmg the top of the pile of sheets at the re- .quireddistancefrom the sheet delivery apparatusto be he'reinafterdescribed. The

. table may be rapidly raised or lowered by driving the shaft 15 from a motor 26, sprocket chain and wheels 27, 28, 29, and

gear 30, meshing with the gear 31 on the shaft 15. When this ls'done, the Worm 18 is'disconnected by either the hand lever 32 or the foot lever 33 and their connections 34, 35, 36 and 37.

A supplemental frame 38 is located within the side framing of the machine, which supplemental frame forms. the support for the sheet delivery apparatus and maybe raised and lowered by' the following means :-A worm shaft 39. is mounted' in'a bracket 40 on the side framingof the machine,-to which shaft a'handlemay be attached for manually rotating the same. Thisshaft has a worm-and gearconnection 41, 42, with a cross 43-, which is provided with pin- 21'by a bevel gear connection 22, 23, the

ions 44, 45, meshing with vertical racks 46,

47, respectively, at the inner ends of the supplemental frame 38. Corresponding vertical racks 48, 49, at the outer end of the supplemental frame 38 are engaged by pinions 50, 51, on stud shafts 52, 58, which are driven from the cross shaft 43 through shafts 54, 55, having bevel gearconnections 56 57, and 58, 59, respectively, with the raised and 'lowered. This carrier is driven in either direction by the following means A vertical shaft 73 is mounted in suitable brackets 74, 75, on the side framing of the machine,-whic'h shaft has fixed thereto upper and lower oppositely arranged bevel gears ZG, 77. This vertical shaft73 is fur- I ther provided with a bevel gear connection .78, 79, with a horizontal shaft 80, which, in

turn, has a bevel gear connection 81, 82, with a stud shaft 83, which shaft 83 is driven from the drive shaft '5 through gears 4, '84. The front carrier shaft 72, is provided witha bevel gear 85 which is brought into mesh with the upper gear 76 on the vertical shaft 78 when the carrier and its supplemental frame are raised to the limit of.

their upward movement. The arrangement of the drive is such that when the parts are thus connected the under side of the endless carrier will be moved outwardly. This bevel gear 85 is brought into mesh with the lower bevel gear 77 on the vertical shaft 73 when the carrier and its supplemental frame are lowered to the limit of their downward movement. The arrangement of the drive is then such that the upper, side of the endless carrier will be moved outwardly.

The endless delivery carrier may be provided with one or more sets of sheet grippers in the present instance two of these sets of grippers are shown. Each set of grippers is reversible by turning their bars 86, 87, end for end, so as to present the jaws 88, 89, of the grippers the proper direc tion for receiving the sheets as they are fed to the carrier; Then the carrier is to be sheets the same side up as they are received, the grippers are arranged to receive the sheets as they are fed to the under side of the carrier and when the carrier is lowered for receiving the sheets one side up and deliver them the other side up, the grippers used in its raised position for delivering the 15 tion of travel of the endless carrier.

are arranged to receive the sheets on the upper side of the carrier. These gripper supporting bars are provided at their ends with blocks 90 which are removably attached to blocks 91 carried by the chains 6%,

65, the fastening devices in the present instance. being bolts The jaw 88 of each set of grippers is. stationary and the jaw 89 is movable and is held yieldingly closed by 10 a spring V A cam roller 94 is carried by an arm fixed 'to the bar 87 at one end thereof, which cam roller is arranged to engage either of two sets of stationary cams according to the direc- \Vhen the set of grippers is arranged for receiving the Sheets at the under side of the carrier, the cam roller 94 is fitted to engage a stationary cam 96 on the stud shaft 68 for causing the grip 'iers to open for receiving the advance edge of the sheet. As the grippers travel outwardly along the underside of the carrier, vthe cam roller His engaged by a cam 97 for causing the grippers to open to deposit the sheet the same side up that it was received by them. When the direction of travel of the endless carrier is reversed the reversal of the gripper bars will bring the cam roller 94 of each set of grippers to the other'side of the carrier in position. to engage a stationary cam 98 on thestud shaft 69 for opening the grippers to receive the advance edge of the sheet at the upper side of the carrier. After the grip pers, with their attached sheet, have passed outwardly along the upper side of the carrier, thence downwardly and inwardly along the under side of the carrier to a predetermined point, the cam roller 9 L Will engage the stationary cam 99 for opening the grippers to permit the deposit of the sheet, the opposite side up from the vvay the sheet was received by the grippers.

v The jogging mechanism for truing up the sheets as they are deposited onto the table *1() may be of any well known or approved construction. In the present instance, the side 1oggers 100 and end 1oggers 101 are operated throughslutable connections from -.5 0 a rock shaft 102, \ihich rock shaft in turn is'opcrated from a cam 103 on the shaft T through a connecting rod 104, the upper end of which is attached to an arm 105 of the rock shaft 102. Stops 106 for the outer ends of the sheets are carried by a cross bar Removable sheet guardsare provided for insuring the proper deposit of the sheets upon the pile 210C01'(ll!l 1 to the direction in which the endless carrier is traveling for delivering the sheets either printed side up or printed side down. When the sheets are fed to the under side of the carrier for delivering them the same side up which in this instance the printed side up, one or more to the cross shaft 113.

projecting arms 10$) removabl y secured to the cross bar 110. lVhen the sheets are fed to the upper side of the carrier for deposit upon the pile, the reverse side up or printed side down one. or more dovvnwa dly and 'inardly extending sheet guard fingers 111 are provided, which fingers are adjustably supported in brackets 11:5 rei'novalily secured In this arrangement, sheet stops 11.4: are provided. for the-inner ends of the sliects,n'hi(:h sheet stopsare supported from the guard lingers 111. One or more removable sheet supporting lingers 115 are also removably engaged at their inner ends with brackets 11G clamped to the cross bar 117, said fingers extending, along in substantially the plane of the upper side of the endless carrier to a. point adjacent to the outer end of the endless carrier. A cylinder 72* is also removably secured upon the outer shaft 72 of the endless carrier v over which cylinder the sheets are caused to travel. hen the sheets are fed to the under side of the endless carrier for delivery, the same or printed side up these fingers 115 are removed.

' For preventing the Sll(*0tS.fl'UllL displacement when they are fed to the upper side of the carrier and passed around the outer end of the carrier for deliveryreverse side up or printed side down, one or more retarding brushes 118 are provided arranged .in the same vertical plane as the fingers 115 and arranged to presstho sheet onto the said fingers. These retarding brushes are raised to permit the advance 'edges of the sheets to pass beneath the same by the following lilMlltlIllSlll--'lll0 brushes are mounted in the free ends of arms 119 fixed to a rock shaft 120. One arm 121 01. this rock shaft 120 is connected to one arm 122 of av rock shaft 123 by a connecting rod 1:34 and auother arm 1.25 of the roclc shaft 123 is provided with a cam roller 1% which is arranged in position to be lifted by a cam 12? carried by the endless chainlii; at each set of grippers. The raising of this roller 126 will also raise the retarding brushes 119. spring 128 tends to hold the brushes down in engagement with the sheet.

For 'iermitting the manual removal of the shoot for inspection or for other pur poses as it is passing along the upper side of the endless carrier, 1 providoa m vable cam 129 on. an arm 130 pivoted at 131, which arm maybe raised for bringing the rain 1;") into position to engage the gripper cam roller St for opening the grippers as the sheet nears the limit of its outward movement. The device which I have shown for accomplishing this result comprises ahand lever 132 having an arm 133, the free end of which is provided with a recess 134 for receiving a stud 135 on the cam arm 130 when the hand lever 132 has been moved into position to raise the cam 129 so that-the cam will be retained in its raised position against unintentional displacement. A stop 136 on the arm 133rests upon one of the chain guards 137 when the gripper tripping device is out of operation. The retarding brushes 118 are also raised at the same time that the earn 129 is' raised-by providing a lost motion connecting rod 138 secured at its outer end to-the hand lever 132 and having a pin and slot connection at its inner end with the arm 139 of the rock shaft 120. This lost motion connection between the hand lever 132 and the retarding brush mechanism permits the operation of the retarding brushes when the sheet releasing mechanism is out of operation.

The means for conveying the sheets from the impression cylinder of the printingmachine to the sheet delivery carrier is constructed, arranged and operated as follows -The intermittently driven tape carrier comprises the tapes 140 which pass around pulleys 141 on the rotary shaft 142 at their outer ends and around pulleys 143 on the shaft 144 at their inner ends. The sheets as they leave the impression cylinder 2 pass over the tapes 140 and under the sheet guides 145 supported from the cross bar 146. These-sheets, as they leave the impression cylinder 2, also pass over the stripper fingers 147 and as they leave the outer end of the endless tape carrier they pass between the guide fingers 148 and the sheet guides 145.

The endless tape carrier is driven intermittently whereby the tape carrier is caused t'o'travel outwardly to convey the advance edge of the sheet to the grippers on the delivery carrier. The travel of the tapes then ceases as the grippers close upon the leading edge of the sheet thus permitting the sheets to be drawn from the tapes at much less. surface speed thanthe normal speed of the tapes'without compelling the sheet being fed ahead to cause-the middle or end of the sheet todrag upon the sheet previously deposited upon the receiving table. This intermittent travel 'is imparted to the tape carrier. by any well known or approved mechanism, such, for instance as that shown, described and claimed in applicants United States Letters Patent No. 757,248 dated April 12, 1904, a brief description of which follows :-An endless belt 149 passes around a pulley 150 on the shaft 142 and around a pulley 151 loosely mounted on the shaft 152. The form cylinder gear153 drives the im ression cylinder gear 154, which, in turn, drives the gear 155 on the stud axle 156. This gear 155 meshes with a gear 157 keyed to the shaft 152. This gear 157 meshes with a gear 158 fixed to the shaft 159 mounted in and 157 have an equal number of teeth, but, the gear 161 has a lesser number of teeth.

than the gear 163- The said gear 163 carries on its outer face a clutch 164 in the form of a divided elastic ring, which clutch is received in an annular groove 165 in thj driving pulley 151.

For, expanding the clutchring 164 for coupling the pulley 151 to the gear 163 there is inserted through the gear 163, a p111 166 which has a flattened head located between theends of the divided clutch rin,

as clearly shbwn in Fig. 18. This pin 166 1s ruched by providin it with an arm 16.7 having a stud roller 168 located in a cam groove 169 "in the gear 157. The shape of this cam groove 169 is such that the pulley. 151 will be clutched to the gear 163 at the. desired intervals for obtaining an intermittent movement of the. endless tape carrier. This pulley 151, when clutched to the gear 163, is driven at a slower speed than the gears 155, 157, 158, because of the ear 161 having a lesser number of teeth 1: an the gear, 163.

The driving mechanism for the several I parts, as illustrated, is so arrangedthat thel-l endless tape carrier travels at the surface speed of the impression cylinder and at a endless delivery carrier.

vided for engaging the sheet on the endless,

speed one and onehalf times faster than the tape carrier before it is released by the feed' ii ing rollers at the impression cylinder, whic sheet forwarding device comprises rolle driven at the speed of the impression cylinr der and endless tape carrier, arranged to engage the opposite. sides of the sheet fbi' feeding the sheet to the, grippers on the dQ-l. livery .carrier' at the speed of the endless, tape'carrier. This sheet forwarding device.

is constructed, arranged and operated-as follows:The cross shaft 170 which carries the lower set of feeding rollers 171 of th e retarding mechanism, is driven rom hthjg shaft 152 through a elt and. pulls connedthin-172, 173, 174, pulleys 173 and 174 being suchthat the rollers 171 will be driven at the same surface speed as the impression cylinder and endless tape carrier. The up er cross shaft 17 5 which bears the drop rolliars'176 is car:

-'as the shaft 175 is loweredand raised; 1

.e relativasizesof the 125' ried by the arms 177 of a rock shaft178 the upper end of a rod 182, the lower end of which rod is provided with a stud roller 183 engaged by a cam 184: on the cam shaft.

It is to be understood that suitable meansnot herein shown are employed for insuring the delivery of the sheets from the impression cylinder grippers between the guides 145 and stripper fingers 147 onto the endless tape carrier;

In operation, when the sheets are to be deposited upon the table 10 printed side up,

the supplemental frame 38 which carries the endless delivery carrier, the retarding brush mechanism and the jogger-s, is raised to bring the under side of the delivery carrier into position to receive the sheets from their feeding mechanism, the sets of grippers being secured to the carrier chains in position to open toward the advancing sheet. The sheet guard fingers 108 with their arms 109 may then be secured in position by attaching the arms to the cross bar 110. As the supplemental frame 38'is raised, the gear 85 will be brought into mesh with the gear 7 6 on the vertical shaft 7 3, thus causing the delivery carrier to be driven in a direction to cause the under side thereof to move outwardly away from the tape carrier. When the parts are in this position, the cam roller 1 v of each set of grippers is in position to be engaged by the cam 96 for opening the grippersto receive the advance edge of the sheet and to be engaged by the cam 97 for opening the grippers to deposit the sheet upon the table. WVhen it is desired to deliver the sheets the printed side down, thesupplemental frame 38 is lowered for bringing the up per side of the delivery carrier into position to receive the sheets from the tape carrier. As the supplemental frame 38 is lowered, it will bring the bevel gear 85 into mesh with the bevel gear 77, thus reversing the movement of the delivery carrier. The delivery gripper supporting bars are turned end for end and secured in their reverse position on the delivery carrier chains for bringing the gripper jaws intoposition. to open toward the advancing sheet. I gripper bars will bring the grip er cam 4.

of each set of grippers into posi "or". to be engaged by the stationary cam 98 at the ner end of the carrier for opening the gr ppers to receive the sheet and to be engaged by the stationary cam 99, as the sheets are moved inwardly along the under side of the carrier for depositing the sheets upon the table. In this case, the guard fingers 108 and their arms 109 are removed and in lieu thereof the sheet guard fingers 111 and the sheet stops 114 are inserted'lnto position by This reversal of the attaching their supporting bracket 112 to the cross bar 113. The sheet supporting fingers 115 are also placed in position along the upper side of the delivery carrier and the turning cylinder 72* is secured on the shaft 72. As the advance edges of the sheet approach the retarding brushes 118, the cam 127 on the carrier chain will raise the brushes 118 by its engagement with the roller 126.

If it is desired to manually remove a sheet for inspection or for other purposes, the hand lever 132 is rocked into position to raise the cam 129 into position to engage the gripper cam roller 94; to cause the grippers to release the advance edge of the sheet.

The intermittent operation of the endless tape carrier is the same Whether the sheets are delivered to the under side of the delivery carrier or to the upper side thereof and is as follows :-As the sheet is deposited onto the endless tape carrier from the impression cylinder, the tape carrier is driven outwardly at the surface speed of the impression cylinder until the advance edge of tape carrier ceases and the tapes remain at rest while the sheet is being carried out on the delivery carrier. This will permit the sheet to be drawn from the tapes at a much less surface speed than the normal speed of the tapes, the delivery carrier being run at a slower speed than the tape carrier. In both of the above operations, the endless tape carrier is so operated that it will be moved for wardly to bring the advance edges of a sheet into position to be engaged by therollers of the sheet forwarding device. The sheet forwarding device will then be caused to feed the sheets forward into position to be engaged by the delivery carriergrippers. The movement of the tape carrier is then stopped and the rollers of the sheet forwarding device are released as the delivery carrier grippers closeon the sheet for conveying the same into positionto be depos1ted upon the receiving table. I

When the sheets are being delivered printed sidejdown, there is a tendency to give the sheets an increased speed as the delivery grippers make the turn around the outer end of the carrier. To counteract th s disturbance, the .turning cylinder 72*" is made to nearly coincide with the pitch line of the sprocket and the retarding brushes 118' are lowered so as to produce a drag upon the sheets, by holding the sheets down on the fingers 115.

What I claim is:

1. In a sheet delivery apparatus for printing machines, a vertically adjustable endless delivery carrier and an intermittently upon the sheet, the travel of thetapes in the side up thereto,

grippers,

driven tape-carrier for feeding sheets one said delivery carrier being arranged to deliver the sheets the same side up or the other side up. 1

2. In aslieet delivery apparatus for printing machines, less delivery driven endless tape carrier for feeding sheets thereto printed side up, the said delivery carrier being arranged to deliver. the

sheets printed side up or printed side down,

3. In a sheet ing machines,

less delivery carrier, means for reversing the direction of travel of the same, and an intermittently driven endless tape carrier for feeding sheets to the delivery carrier.

delivery apparatus for print- 4. In a sheet delivery apparatus for print? a vertically adjustable end- 7 ing machines, less delivery carrier, including reversible grippers, means for reversing the direction of travel of the carrier and an intermittently driven endless tape carrier for feed ing sheets to the said grippers.

. 5. In a sheet delivery apparatus for printing rnachines, a vertically adjustable endless delivery carrier, means for reversing the direction of travel of the same and an intermittently driven endless tape carrier for feeding sheets to the under or upper side of said delivery carrier.

6. In a sheet ing machines,

a vertically adjustable endless delivery carrier including reversible means for reversing the direction of travel of the carrier and an intermittently driven endless tape carrier for feeding sheets to the grippers at the under or upper side of the delivery carrier.

In a sheet delivery apparatus for'printing machines, an endless delivery carrier, means for reversing the direction of travel of the same, an intermittently driven enda vertically adjustable endcarrier and an intermittently a vertically adjustable end-' delivery apparatus for printprinting machines, rier arranged to p less tapecarrier for feeding sheets to the delivery carrier and means for raising and lowering the at, the under side or up 8. In a sheet delivery apparatus for printing machines, an endless delivery carrier including reversible grippers, means for re versing the direction of travel of the delivery less tape carrier for feeding sheets to the said grippers and means 'for raising and lowering the delivery carrier whereby the delivery carrier whereby thesheets are received per side thereof.

carrier,-an intermittently driven endi grippers may receive the sheets at the under I er upper side thereof.

9. In a sheet delivery apparatus for printing machines, an endless delivery carrier ar ranged to receive the sheets one side up and deliver them the other side up and a manually operated device for releasing a sheet pleasure to permit thefrom the carrier at withdrawal not the sheet.

. carrier.

permit the withdrawal of speed and a positive 10. In a sheet delivery apparatus tor an endless delivery 9 and a manually ing a sheet from r the sheet. delivery apparatus, 0

the carrier at pleasure 11. In a sheetprinting machines,

up and deliver them the sameside up or'thg, other side up and a manually operateddejfl 'f vice for releasing a, sheet from the carrier at pleasure to permit sheet. 12. In a sheet delivery ap'paratusfon printing machines, an. endless delivery car rier arranged to receive the sheets printed side up and deliver them printed side up" or printed side down and a manuall operated device for releasing a sheet from the carrier at pleasure to permit the withdrawal of the sheet.

13. In a sheet delivery apparatus for printing machines, an endless delivery carrier having grippers, means for feeding sheets to the rippers and a manually-operated device or opening the grippers at a predetermined point in the movement of the carrier to permit the withdrawal of a sheet.

14. In a sheet delivery apparatus for printing machines, an endless delivery carthe withdrawal f an endless deliverycar-f {f rier arranged to ,IQCGIVQ. the sheets one side mar arranged to receive the sheets one side up and deliver them the otherside up, a' retarding device engaging the sheetsfor retaining them in position as they pass around, the outer end of the carrier and means for'automatically raising the retarding device to permitthe passage of the ad;

Vance edge of the sheet. I 15. In a sheet delivery apparatus for printing machines, an endless delivery carrier arranged to receive the sheets one side up and deliver them the other side up, aretarding device engaging the sheets for 'retaining them in position as [they around the outer end of the carrier and a pass cam on the carrier for raising the retarding,

device to permit the passage edge of the sheet.

16 In a sheet delivery apparatus for printing machines, an endless delivery car-. rierdriven at a certain ing endless tape carrier of the advance driven at. a. greater sheet forwarding device arranged. to engage and release the sheet as it is fed to the delivery carrier.

speed, a sheet feedf 1?. In a sheet delivery apparatus for.

printing machines, an endless rier driven at a certain speed, ing endless tape carrier driven intermittently at a greater speed and a positive sheet forwarding device arran ed to engage a release the sheet as it isIed to the delivel'jh delivery can. a sheet feed- 18. In a sheet delivery apparatus for printing machines, an endless delivery car rier drivenat ascertain speed, means for reversing the direction of travel of thedelivery carrier, an endless tape carrier driven at a greater speed for feeding the sheets to the upper or under side of the delivery carrier and a positive sheet forward the sheet as it is fed to the delivery carrier. 19. In a sheet delivery apparatus for printing machines, an endless delivery carrier driven at a certain speed, means for reversing the direction of travel. of the delivery carrier, an endless tape carrier driven intermittently at a greater speed than the delivery carrier for feeding the. sheets to the upper or under side thereof and a posiengage and release the sheet as it is fed to the delivery carrierj 20. In a sheet delivery apparatus for printing machines, an endless delivery carrier driven at a certain speed, a sheet feeding endless tape carrierdriven at a greater vice arranged to engage and release the sheet as the advance edge of the sheet is engaged by the delivery carr ier.

21. In a sheet delivery apparatus for printing machines, an endless delivery carrier driven at a certain speed, a sheet feeding endless tape carrier driven intermittently at a greater speed and a positive sheet forwarding device arranged to release the sheet as the advance edge of the sheet is engaged by the delivery carrier.

22. In a sheet delivery apparatus for printing machines, an endless delivery carrier driven at a certain speed, delivery carrier grippers, a sheet feeding endless tape carrier driven at a greater speed and a positive sheet forwarding device arranged to release the sheet as the advance edge of the sheet is engaged by the delivery carrier grippers. '23. In a sheet delivery apparatus for printing machines, an endless delivery carrier driven at a certain speed, delivery carrier grippers, a sheet feeding endless tape carrier driven intermittently at a greater speed and a positive sheet forwarding device arranged to release the sheet as the advance edge of the sheet is engaged by the delivery carrier grippers.

24. In a sheet delivery apparatus for printing machines, an endless delivery car- 'ier driven at a certain speed, a sheet feedng endless tape carrier driven at a greater peed and a positive sheet forwarding de- 'ice driven at the speed of the tape carrier u'ranged to engage and release the sheet as t is fed to the delivery carrier.

25. In a sheet delivery apparatus for rinting machines, an endless delivery caring device arranged to engage and releasetive sheet forwarding device arranged to speed and 'a positive sheet forwarding dedevice arranged to engage the sheet ar feedrier driven ata certain speed, a sheet feeding endless tape carrier driven intermit tently at a greater speed and a positive sheet forwarding device driven at the speed of the tape carrier, arranged to engage and release the sheet as it is fed to the delivery carrier.

26. In a sheet delivery apparatus for printing machines, an'endless delivery car-i rier driven at a certain speed, a sheet feeding' endless tape carrier driven at a greater speedand a positive sheet forwarding de vice driven at the speed of the tape carrier, arranged to release the sheetas the advance edge of the sheet is engaged by the delivery carrier.

27. In a sheet delivery apparatus for printing machines, an endless delivery carrier driven at a certain speed, a sheet feeding endless tape carrier driven intermittently at a greater speed and a positive sheet forwarding device driven at the speed of the tape carrier, arranged to. release the sheet as the advance edge of the sheet is en; gaged by the delivery carrier.

528. In a sheet delivery apparatus for. printing machines, a sheet delivery device, a sheet feeding endless tape carrier and a positive sheet forwarding device located 111- termediate the ends of the tape carrier and driven at the speed of the tape carrier for 95 feeding the sheets into position to be en- I gaged by the delivery device.

In a sheet delivery apparatusfor printing machines, a sheet delivery device, an intermittently driven sheet feeding endless-tape carrier and a positive sheet forwarding device located intermediate the ends of the endless tape carrier and, ar ranged to engage and release the sheet as it is fed to the delivery device. Y

30. In a sheet delivery apparatus for printing machines, sheet delivery device, an intermittently driven sheet feeding endless'tape carrier and apositive sheet forwarding device driven at the speed ofthe tape carrier-arranged to engage the sheet for feeding it into position to he engaged by the delivery device.

31. In a sheet delivery apparatus for printing machines. an endless delivery carrier, a sheet feeding endless tape carrier and a positive sheet forwarding device arranged to engage the sheet for feeding it into position to he engaged. by the delivery carrier and means for stopping thin move ment of the tape carrier and disengaging. ahe sheet forwarding dc ice from the sheet as the sheet is engaged by the delivirry car rier. I

In a sheet delivery apparatus for printing machines, an endless delivery can rier, means for reversing the direction-of travel of the carrier, :1. sheet feeding endless tape carrier, a positive sheet forge aiding ile mew

; itjhtd positiun t0 be engegeti by the de fiiiery carrier and means. for stopping the mbvemerit of the tape carrier and disengag ing the sheet forwarding evice fmm the 5 sheet as the sheet is engageri my the delivery cfarrier.

.l' j-In testimony, that .I claim the foregoing as my'invenzien, I' have signed my nameiii presence 0% two wltnesses, thls' fwentleth day of Jilly, 1914;

-. HOWARD M. B

Witnesses: I

A. R. STILLMAN, M. GRANT.

ARBER-

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