US2239995A

US2239995A - Tipping machine

Info

Publication number: US2239995A
Application number: US210021A
Authority: US
Inventors: Daneke Dietrich; William H Kushera
Original assignee: FRED M BRACKETT
Current assignee: FRED M BRACKETT
Priority date: 1938-05-25
Filing date: 1938-05-25
Publication date: 1941-04-29
Anticipated expiration: 1958-04-29

Description

Ami 29, W411. D. DANEIKE ETA).

TIPPING MACHINE Filed May 25, 1938 4 Sheets-Sheet l ATTORNEY Aprfl 29, 1M1. D. DANEKE ET AL TIPPING MACHINE Filed May 25, 1938 4 Sheets-Sheet 3 i u. M 2.?

April 29, M41. D. DANEKE EIAL TIPPING MACHINE Filed May 25, 1938 4 Sheets-Sheet 4 e, and

==E km.

by-Ivy p an. luv, av n l- UNITED STATES animate PATENT OFHCE TIPPING MACHINE Dietrich Dancke and William H. Kushera, Topeka, Kans, assignors to Fred M. Brackett, Topeka,

Kans.

This invention relates to tipping machines, and particularly to a machine of this character that is adapted for gathering and tipping carbon and paper sheets composing manifold forms, and has for its principal object to provide a machine that is of simple construction and operation for accurate assembly of the respective paper and carbon sheets.

Other important objects of the invention are to provide a tipping machine having a laterally slanting table in cooperation with rails whereby the respective carbon and paper sheets are automatically kept in desired registry; to provide the machine with a plurality of successive alternate stations for respectively feeding paper and carbon sheets into abutting relation with the rails; to provide the machine with a conveyor for automatically moving the respective sheets from one station to the next; to provide the machine with means for preventing smearing of the carbon on an underlying sheet; and to provide a construction for accurately aligning the sheets with respect to the lines of tipping before they are pressed into sealing contact with the adhesive.

Other important objects of the invention are to provide a machine whereby the tipping is limited to selective portions of one or more of the sheets in forming marginal edges; to provide a safety stop at each station for selectively suspending operation of the machine; and to provide alternate stations with glue applicators and pressing rolls respectively.

In accomplishing these and other objects of the invention, we have provided improved details of structure, the preferred form of which is illustrated in the accompanying drawings, wherein:

Fig. 1 is a perspective view of a tipping machine constructed in accordance with the present invention.

Fig. 2 is a cross-section through one side of the table portion of the machine on the line 2--2 of Fig. 4.

Fig. 3 is a similar cross-section on the line 3-3 of Fig. 4.

Fig. 4 is a plan view of the forward end of the machine.

Fig. 5 is a similar plan view of the rear end of the machine.

Fig. 6 is a longitudinal section through the table portion of the machine on the line 6-6 of Fig. 4.

Fig. 7 is a longitudinal section through the delivery end of the machine.

Fig. 8 is a detail view of the throw-out clutch for stopping operation of the machine.

Fig. 9 is an enlarged section on the line 99 of Fig. 6.

Fig. 10 is a detail section on the line Ill-l0 of Fig. 6.

Fig. 11 is a detail perspective view of one of the conveyor belts showing one of the sheet propelling fingers disconnected and in spaced relation with its attaching bracket.

Fig. 12 is a detail perspective view of one of the pressing shoes.

Fig. 13 is a detail perspective view of one of the carbon supporting and registering rails.

Fig. 14 is a detail perspective view of one of the paper sheet supporting rails.

Fig. 15 is a perspective view of one of the paper supporting rods which cooperate with the plate portions of the rails illustrated in Fig. 13.

Fig. 16 is a perspective view of one of the assembled manifold forms, parts of the sheets being broken away to better illustrate the tipping.

Referring more in detail to the drawings:

I designates a tipping machine constructed in accordance with the present invention, and which includes a table 2 having a working top 3 inclined toward one side and supported by a series of cross frames 4 spaced along the length thereof. Each cross frame includes spaced legs 5 and 6 connected by a horizontal lower bar 7, an inclined upper bar 8, and an intermediate bar 9. The upper bar 8 is inclined in accordance with the table top and carries an extension l0 projecting beyond the legs 6. The bar 8 of each frame has an upward offset ll above the leg 5 to cooperate with the corresponding ofisets of the other frames to support a plate l2 that extends along the length of the table with the upper surface thereof in plane with the tops of spaced rails l3, l4 and [5 which are supported on the lower offsets I6 of the respective cross bars 8.

The rails I3, I 4 and I5 terminate short of the delivery end of the table and are spaced apart to support endless conveyors l1, I8 and [9, later described. Each rail I4 has a longitudinal groove or recess forming a guideway 20, shaped to provide a stepped bottom 2| to form central guides or tracks 22. Carried on the outer ends of the extensions ID are spacing plates 23 for supporting an angle 24 arranged with one flange 25 overlapping the plates 23 and its other flange depending to form the side of the table top. Supported on the flange 25 and the adjacent side of the rail I is a top plate 26 that cooperates with

intermediate plates

21 and 28 having their side edges resting upon the adjacent sides of the rails l3l4 and l4-l5 to form a substantially continuous top except for the guideways 29.

Supported on the rail l3 and plate 12 is an angle plate 29, having a vertical leg to provide a gage and stop rail 39 that extends at substantially right angles to the upper surface of the plates 26, 2'! and 28,- and the other leg 3| of the angle 29. The edges of the

plates

26, 21 and 28, which register with the sides of the guideways 26, have shallow flanges or rails 32 for limiting contact of the respective sheets of paper with the upper surface of the table and thereby reducing the resistance to movement of the sheets thereacross, as later described.

Suspended below the table on cross bars 33 and having their ends supported by connecting strips 34 and 35 are guide tracks 36 for supporting the lower runs 31 of the conveyor belts, which have their upper runs 38 supported on the tracks 22.

Each conveyor belt includes a series of links 39 connected by pins 40 having rollers 4| engagable with the respective tracks. Selected links of the belts have laterally extending ears 42 and 43 to attach

sheet propelling fingers

44 and 45. The

fingers

44 and 45 hav angularly extending base portions 46 by which they are attached to the ears 42 and 43 by fastening devices, such as screws 41. The upper ends of the fingers extend above the table top and terminate in forwardly extending hook-like portions 48 and 49 to engage the side edges of the respective sheets comprising the manifold forms. The

fingers

44 and 45 are spaced along the belts equal distances corresponding to the width of the sheets and to leave a space therebetween as the respective sheets are being advanced from one gathering station to the next.

The belts extend continuously from the forward end of the machine to a point adjacent the rear end and operate over sprockets 59 fixed to a cross shaft 5! that is journalled in adjustable bearings 52 fixed to the upper bar of the endmost cross frame, as best shown in Fig. 6. The opposite end of the belt operates over a driven sprocket 53 on a cross shaft 54 having its ends journalled in suitable bearings carried by side rails 55 connecting the two adjacent cross frames at the delivery end of the machine. The sprockets 59 and 53 are attached to their respective shafts so that they register with the plane of the respective guide tracks on which the upper and lower runs of the belts are respectively supported. The conveyor belts are also guidingly supported on idle sprockets 56 carried on a cross shaft 51, as shown in Fig. '7. The belts are tensioned by the adjustable bearings 52 so that the runs thereof are kept in taut condition on the respective tracks and to take up any play occurring in the pivotal connections of the links.

Spaced above the table are transverse bars 58, having their ends carried on blocks 59 to divide the table into a plurality of stations designated A to J respectively, as shown in Fig. 1.

The back rail 30 is notched at spaced points along its upper edge to accommodate the trans verse bars 58, glue applicators 69, and pressing rollers 6 i, as later described. Beginning with the second bar from the front end of the machine are suspended sheet supporting rods which are illustrated in detail in Fig. 15, and which have heads 66. The rods have flattened forward ends 68 on which the sheets of paper or carbon are placed by the operators of the machine to be picked up by the

fingers

44 and 45. The heads 66 are attached under the bars by fastening devices, such as cap-screws 69 that are projected through slotted openings 10 into the heads 66. The supporting rods 65 are spaced between the respective belts in pairs, while a single supporting rod is located at the outer side of the belt adjacent the high side of the table. The supporting rods terminate short of the cross bar of the next succeeding station so that the sheets of paper placed thereon and moved by the rods on the conveyor belt, ride off the ends of the supporting rods at one station and under the supporting rods of the succeeding station. Also carried by the cross bars at a point above each of the conveyor belts, are similar supporting rods H that engage between the

fingers

44 and 45 of the conveyor belts so as to support the edges of the sheets at the points where they are contacted by the propelling fingers.

Fixed to the rail 30, at the second, fourth, and every other station thereafter, is a carbon supporting plate 12. The plate 12 includes a horizontal shelf portion 13, having an upturned forward edge 14, and having its opposite end terminating short of the respective glue applicator mechanisms so that the carbon papers ride off the end thereof and under the pressing rollers which are located at the stations intermediate the stations having the glue applicators. The plates 12 also include a vertical abutment rail 15 that is fixed to the rail 30 by spacers I6 and whereby the shelf portion is supported above the leg 3| of the table top in substantially the plane of the supporting rods previously described. The rail 15 is notched at the delivery end thereof, as indicated at H, to conform to the notch in the rail 30. Located at the intermediate stations are supporting plates 18, corresponding to the shelf portions 13 of the plates 12. The plates 18 are carried on rods 19 corresponding to the rods 65, previously described, the rods 19 having heads which are attached to the under side of the respective cross bars.

Each glue applicator mechanism includes a glue containing pan 8| that is supported above the plate l2 and over the path of travel of the sheets by a frame 82 pivotally attached, to the outer edge of the plate l2 as shown in Fig. 9. The frame 82 includes a gear housing 83 rotatably supporting a drive shaft 84 carrying a pinion gear 85 that meshes with a pinion gear 86 on a pick-up roller shaft 61, which drives a pick-up roller 88 having its periphery moving through the glue contained in the pan. The gears 85 and 86 are keyed to the respective shafts and rotated within the gear housings. Fixed on the outer end of the shaft 84, in proper spaced relation with the rail 30, is an applicator disk 89, having spaced flange-like applicating faces 90 and 9| contacting the peripheral face of the pick-up roller so that the glue is transferred thereon to be deposited onto the work sheets in parallel stripes as they are moved along the table top. The shaft 84 is connected with an aligning drive shaft 92 by a flexible coupling 93, the drive shaft 92 being rotatably mounted in a gear housing 94 that is carried on an arm 95 attached to the under side of the plate I2. Fixed to the shaft 92 within the gear housing 94 is a gear 96 that is driven by a gear 91 rotatably mounted on the stub shaft 98. Connected in driving relation with the gear 91 are sprockets 99 and I whereby the respective applicator mechanisms are actuated through chain connections IOI and I02, the connections of which are later described.

Rotatably mounted on a stub shaft I03 at the opposite end of the arm 95, is a platen roller I04 adapted to support the work pieces in contact with the transfer disk. The roller I04 has flanges I05, I06 and I 01 offset with respect to the flanges of the transfer disk so that the flanges of the transfer disk align with the spaces I08 and I09 between the respective flanges on the platen roller. It is thus obvious that when a work piece is not engaged between the applicator disk and the platen roller, any glue carried on the applicating faces 90 and 9I will not collect upon the platen roller due to the peripheral spaces I08 and I09, however, the flanges of the platen roller adequately support the edge of the paper in contact with the applicating faces of the transfer disk.

The pressing rollers at the carbon stations include rotating disks IIO that are fixed to driven shafts I II actuated by gearing in the same manner as the actuating gearing for the applicator mechanisms. The disks IIO have flanges H2 and H3 spaced so that the flange II2 engages an underlying sheet, while the other II3 engages an overlying carbon sheet. Cooperating with each disk I I0 is a platen roller II4 which is rotatably mounted on a stub shaft II5 carried in a supporting arm II 6, the periphery of the disk operating through a slot H1 in the plate I2. The shafts I I I of the pressing disks I I0 are journalled in arms I I8 which are best shown in Figs. 4 and 6. The arms II8 are pivotally supported, as at I I9, on lugs I29 projecting upwardly from the plate I2 so that the end carrying the pressing disk is adapted to be adjusted for different thicknesses and layers of paper moved thereunder. This is accomplished by providing the arm III! with a laterally extending pin l2! that is adapted to rest on a stop I22. The stop I22 comprises a bar that is pivotally suspended from the respective cross bars on a bolt 123, so that one end engages under the pin I2I, and the other is adapted to be engaged by an adjusting screw I24 which causes the stop to be fulcrumed on its pivot for raising and lowering of the arm. The glue applicating mechanisms are also pivotally supported as previously mentioned, and have forwardly extending arms I25 provided with laterally extending pins I26 that engage adjusting stops I21, similar to the adjustable stops I22. Guide shoes I28, as shown in Fig. 12, are also mounted on selected cross bars. These shoes include yielding springlike strips I29 having upwardly directed ends I30 to guide the sheets thereunder.

In some instances it is necessary to provide margins on selected sheets, and we therefore provide each of the applicator mechanisms with a control apparatus whereby the applicator roller is lifted from contact with the work so that glue is not deposited across the margins. This is accomplished by a trip mechanism, including a bell-crank I 3I having one arm I32 engaging the pin I26 on the arm I25, while its other arm depends downwardly and is connected by a link I33 with a lever arm I 34. The lever arm I34 is carried by a shaft I35 that is pivotally supported under the plate I2 by bearings I36. Fixed to the opposite end of the shaft are trip arms I31, having depending ends I38 adapted to engage the

fingers

44 and 45 on the lower run of an adjacent belt. The bearings I36 are adjustable along the length of the machine so that the trip arms may be spaced relatively to the spacing of the fingers on the belts for lifting the glue applicator disk at the proper time. During this adjustment the connecting link slides through the depending arm of'the bell-crank. It is thus obvious that the trip arms may be adjusted relatively to the spacing of the conveyor fingers so that glue stripes of selective lengths may be applied to selective sheets, as later described.

The station J includes a pressing mechanism I39, including a carriage I40 having a series of rollers I4I supporting an endless belt I42 moving in pressing and forwarding contact with the work pieces as they are carried across the section J of the table. The carriage I40 is adjustably supported above the table so that it is movable to and from contact with the work pieces, the carriage being suspended upon threaded shafts I43 and I44 carried in brackets I45 and I46 fixed to the side frame of the machine. Fixed to the upper ends of the shafts are bevel gears I41 meshing with bevel gears I48 on a connecting shaft I49, the shaft I49 being mounted in bearings i50 fixed to the brackets and rotated by a suitable hand wheel I5I. The belt I42 is operated by a drive pulley I52 that is driven by a shaft I53 having a sprocket I54 operable by a chain belt I55. The chain belt I55 operates over a sprocket I56 on a counter-shaft I51 carried by the framework of the machine. Also mounted on the counter-shaft I51 is a sprocket I58 for operating a chain I59 which drives the sprocket 53. The chain I59 is kept in taut condition by a tightener including an idle sprocket I60 as shown in Fig, '7. Also fixed on the shaft I51 is a sprocket I6I that drives a sprocket I 63 through a chain I62. The sprocket I63 drives the sprocket I00 of the station I through the chain I02, and the sprocket 99 of the station I drives the corresponding sprocket 99 of the station H, and so on toward the forward end of the machine, thereby driving all of the glue applicating and pressing mechanisms.

The counter-shaft I51 carries a gear I64 meshing with a pinion I65 on a driven shaft I66. Fixed on the driven shaft I66 is a pulley I61 driven by belts I68 operating over a drive pulley I69. The drive pulley I69 is fixed to a shaft I10 carried in bearing brackets I1I on a platform I12 attached to the lower cross bars of the first two cross frames at the delivery end of the machine as shown in Fig. '7. The platform I12 is preferably pivotally supported on a rod I13 whereby the platform may be adjusted to tension the belts I68. Also splined on the shaft I 10 is a collar I14 for actuating a clutch I15 whereby the shaft is operably connected with a drive pulley I16 which is driven by a belt I11 operating over the drive pulley I18 on the armature shaft of an electric motor I19, the motor I19 being mounted on the opposite end of the platform I12. The clutch collar is actuated by a shifting yoke I that is operably connected with a rock-shaft I8I extending longitudinally of the machine directly under the angle 8, the rock-shaft I8I being connected to the yoke I80 by a lever arm I82 through a connecting link I83.

Located at each of the stations from A to J are depending lever arms I84 having laterally extending ends I85 adapted to be engaged by the foot of an operator seated at any of the respec tive stations. The lever arms I84 include T- shaped heads I86, having sleeve portions I81 freely movable on the shaft I8I. One end of the sleeve I81 is provided with a clutch engaging face adapted to engage a clutch collar I88 on the shaft when the lever arm is swung in one direction to effect throw-out of the clutch I15 and stop operation of the machine The sleeve I81 is kept in engaging position with the clutch collar by a stop collar I89 fixed to the shaft I8I. It is thus obvious that any one of the lever arms I84 may be actuated to operate the throw-out clutch without movement of the other arms.

Supported at the delivery end of the machine are rollers I90 and I9I, the roller I9I being pivotally supported in pressing relation with the roller I90 so that the completed work pieces are movable therebetween for discharge onto a stacking member I92 which includes an inclined support I93 having a back board I94 and a transverse partition I95 that is adjustable on the sloping platform according to the width of the respective work pieces. The stacker is adjustably supported on a bracket I95 fixed to the endmost cross frame, as shown in Fig. 7.

When the gathered sheets are engaged by the pressing and forwarding belt I42 there may be a tendency to slightly divert the path of travel of the sheet. We therefore provide a flexible pressing arm I91 that is fixed ona laterally extending rod I98 that is attached to the frame of the carriage I49, as best shown in Figs. 1 and 5. The pressing arm I91 is positioned on the rod I98 to engage the manifold forms at a point spaced from the pressing belt so that they are kept straight relatively to the table.

The carbon sheets may tend to curl because of static and atmospheric conditions, and to overcome this tendency we provide each carbon station with a heater I99, including a reflector 209 for directing the heat of a light bulb or the like against the carbon sheets as they are deposited on the supporting rods of the table.

For convenience the stocks of paper sheets and carbon are stacked upon a shelf 2III that is supported at the lower side of the table on gooseneckshaped brackets 202 whereby the forward edge of the shelf substantially aligns with the rail 30, as best shown in Figs. 1, 2 and 3. If desired the sheets may also be stacked upon shelves 203 that are attached to the depending flange of the angle 24 by suitable clamps 204.

In operating a machine constructed and assembled as described, an operator is positioned at each of the stations A to I, or at those stations where sheets are to be applied in producing manifold forms having the desired number of copies. Alternate stacks of carbon and form sheets are placed on the shelf 29I. For example, a stack of form sheets is placed on the shelf in registry with the station A, a stack of carbon sheets in registry with the station B, another stack of form sheets in registry with the station C, and in like sequence at the other stations depending upon the number of stations to be used in producing a given manifold form. If a margin is to be left at the side of the gathered forms, one or more sheets, usually the first sheets, are of width to provide the margin After the machine has been started the operator at the station A will take a sheet from the corresponding stack on the shelf 2Ill, and place it on the table across the upper runs of the conveyor belts, allowing the sheet to fall loosely thereon so that it slides into position where the upper edge engages the rail 39. The sheet is,

therefore, registered relatively to the transverse dimension of the table, and is picked up by the conveyors for movement therealong as soon as the pairs of

fingers

44 and 45 engage the righthand edge thereof. The sheet K is then advanced under the first glue applicating disk which deposits two parallel stripes of glue, as indicated at L and M, Fig. 6, the glue stripes being spaced according to the spacing of the flanges on the applicator disk. In case there is to be a margin left at one side of the sheet, as indicated at N, the trip for that applicator mechanism is adjusted to effect raising of the applicator disk from contact with the sheet until the sheet has advanced to the point where the glue stripes are to begin on the sheet. This is effected by adjusting the bearing I36 relatively to the frame of the table so that one of the fingers on the lower run of the conveyor belt I! is in position for engaging the depending end I38 of the trip lever I31 at the time the sheet is advanced under the applicator disk to eifect application of the desired length of stripes. The sheet continues under the cross bar 58 and passes under the supporting fingers 68 and 'II to the next station which is a carbon station. During movement of the sheet along the table it is supported by the flanges 2I of the top plates of the table so as to reduce the contact area thereof with the table. The operator at the station B has also removed a carbon sheet 0 from the stack on the shelf MI and placed it upon top of the supporting rods I55 and II for that station, dropping it so that the upper edge thereof slides into abutting contact with the plate 72, which automatically positions the upper edge of the carbon sheet so that it is in position to just overlap the inner glue stripe M. The carbon sheet, however, does not contact the glue stripe for the reason that it is supported by the shelf portion I3, while the form sheet K is passing thereunder. The fingers which are advancing the sheet K then engage the right-hand edge of the carbon sheet to move it along the supporting rods, while the underlying form sheet N is moving over the flanges 32. As soon as the left-hand edge of the carbon sheet engages the upturned end I30 of the shoe I29 it is pressed downwardly to ride off the ends of the supporting rods into direct contact with the underlying form sheet and the upper edge of the carbon sheet then contacts the glue stripe M which is aligned with the pressing disk I I 0. The outer flange I I2 of the disk I I0 rides on the form sheet between the glue stripes while the other flange rides along the upper edge of the carbon sheet to press it into sealing contact with the glue stripe M. The pressure as applied by the pressing disk is adjusted so that it effectively makes the contact with a minimum pressure on the carbon. This adjustment is eifected by the screw I24 to raise and lower the pressing disk, as previously described. After this adjustment is made it sufiices for the entire run of sheets. The sheet K continues to advance, together with the attached carbon sheet, to the next station C where the operator has deposited a form sheet P upon the supporting rods of that station in such a position that the upper edge thereof falls upon the plate I8 and slides into position so that it engages the rail 30 in substantially the same manner as the sheet N, previously described. The upper edges of the form sheets are then in registry. When the conveyor fingers engage the right-hand edge of the sheet P, it is registered transversely and advanced along with the other sheets to the glue applicator disk of that station which applies spaced glue stripes Q and R in relatively superimposed relation with the stripes L and M, and presses the upper edge of the sheet P into contact with the glue stripe L to effect adherence of the sheet P. The sheets continue their advance to the next station where a carbon sheet S is applied to the glue stripe R in the same manner as the carbon sheet just described. Attention is directed to the fact that the pressing and applicator disks have been adjusted in accordance with the plies and thickness of the paper which they engage so that they effect the desired pressure thereon in the same manner as described in the adjustment of the first pressure rolls. After deposit of the sheet S, the sheets continue their advance to the next station where a form sheet T is applied and pressed into contact with the glue Stripe Q to complete a manifold form having three form sheets.

If larger manifold copies are required, the subsequent stations may be used to deposit the additional sheets and carbons as the applied forms continue their advance along the top of the table.

As the manifold forms pass to the station J, the upper edges thereof are engaged by the pressing and forwarding belt and pressing arm I91 so that they are kept in straight condition while they are being forwarded across the delivery end of the table and while the sheets are being completely pressed into intimate contact with the glue stripes. The assembled manifold forms after passing the pressing belt move between the rollers I90 and IN and are discharged onto the inclined support I93 for stacking against the transverse board I95.

Should the machine fail to operate properly at any one of the stations, the operator of that station may stop the conveyor belts by actuating the throw-out lever I84 at that station which disconnects the clutch I from the motor drive. When the machine has been adjusted and is again placed in proper order, the clutch is reengaged by allowing return movement of the throw-out lever.

From the foregoing it is apparent that we have provided a tipping machine which is of simple construction and capable of accurate assembly of the respective paper and carbon sheets.

What we claim and desire to secure by Letters Patent is:

1. In a tipping machine, alternate carbon and form sheet stations, sheet advancing means extending along said stations to successively gather a form sheet and then a carbon sheet, sheet gaging means extending along said sheet advancing means to position the sheets moved therealong by said sheet advancing means in definitely positioned relation with said carbon stations, means at the carbon stations and selected form sheet stations and spaced above said sheet advancing means for supporting applied sheets above the sheets advanced from the preceding stations whereby the advance sheets move under a supported sheet, gage means spaced from said form sheet gaging means for positioning selected edges of the carbon sheets relatively to the form sheets, and means at selected stations and operating upon the form sheets for applying glue stripes to adhere a carbon sheet and a superimposed form sheet respectively.

2. In a tipping machine, alternate carbon and form sheet stations, sheet advancing means extending along said stations to successively gather a form sheet and then a carbon sheet, form sheet gaging means extending along said sheet advancing means to position the form sheets moved therealong by said sheet advancing means in definitely positioned relation with said carbon stations, means at the carbon stations and selected form sheet stations and spaced along said sheet advancing means for supporting applied sheets above the sheets advanced from the preceding stations whereby the advance sheets move under a supported sheet, gage means spaced from said form sheet gaging means for positioning se lected edges of the carbon sheets relatively to the form sheets, means at selected stations and operating upon the form sheets for applying glue stripes to adhere a carbon sheet and a superimposed form sheet respectively, and heating means supported in the zone of the carbon stations to prevent curling of said carbon sheets.

3. In a tipping machine, alternate carbon and form sheet stations, sheet advancing means extending along said stations to successively gather a form sheet and then a carbon sheet, form sheet gaging means extending along said sheet advancing means to position the form sheets moved therealong by said sheet advancing means in definite position relative to said carbon stations, means at the carbon stations and selected form sheet stations for supporting applied sheets above the sheets advanced from the preceding stations whereby the advance sheets move under a supported sheet, gage means spaced from said form sheet gaging means for positioning selected edges of the carbon sheets relatively to the form sheets, glue applying means at selected stations and operating upon the form sheets for applying glue stripes to respectively adhere a carbon sheet and a superimposed form sheet, and pressing and forwarding means cooperating with said advancing means for pressing said sheets into sealed contact.

4. A tipping machine including a table having a laterally inclined top, a gage rail extending along the lower side of said top, conveyor means movable along the table top in parallel relation with said rail, sheet supporting means carried above said conveyor means at spaced intervals along the table top for supporting sheets to be successively engaged by said conveyor means, and gage means cooperating with selected sheet supporting means and spaced inwardly from said gage rail to guidingly retain a supported sheet with an edge thereof spaced from the corresponding edge of the sheets engaging said gage rail.

5. A tipping machine including a table having a laterally inclined top, a rail extending along the lower side of said top, conveyor means movable along the table top in parallel relation with said rail to move sheets with selected edges in contact with said rail, sheet supporting means carried above said conveyor means at spaced intervals along the table top for supporting sheets to be successively engaged by said conveyor means, and rails cooperating with selected sheet supporting means and spaced from the first named rail to guidingly retain a corresponding edge of a supported sheet so that said edge is spaced from the corresponding edge of the sheets engaging the first named rail.

6. A tipping machine including a table having a laterally inclined top, a rail extending along the lower side of said top, conveyor means movable along the table top in parallel relation with said rail, sheet supporting means located at spaced intervals along the table top for supporting sheets to be successively engaged by said conveyor means, rails cooperating with selected sheet supporting means and spaced from the first named rail to guidingly retain a supported sheet so that the edge thereof contacting said supporting means is spaced from the corresponding edges of the sheets engaging the first named rail, a tipping disk having spaced flanges corresponding to the spaced edges of said sheets for applying glue to said sheets, and pressing disks having flanges corresponding to said flanges of the tipping disks.

'7. In a tipping machine, carbon and form sheet stations, sheet advancing means extending along said stations, form sheet gaging means extending along said sheet advancing means to position the form sheets moved therealong by said sheet advancing means in definitely positioned relation with said carbon station, a support spaced above and extending transversely of the sheet advancing means, a plurality of rods carried by said support and extending in the direction of movement of said sheet advancing means for supporting a carbon sheet at the carbon station so that the form sheet moves under the carbon sheet, and means on the sheet advancing means for engaging the supported carbon sheet to move the carbon sheet 011' the supporting rods onto an advanced form sheet.

8. In a tipping machine, carbon and form sheet stations, sheet advancing means extending along said stations, form sheet gaging means extending along said sheet advancing means to position the form sheets moved therealong by said sheet advancing means in definitely positioned relation with said carbon station, a support spaced above and extending transversely of the sheet advancing means, a plurality of rods carried by said support and extending in the direction of movement of said sheet advancing means for supporting a carbon sheet at the carbon station so that the form sheet moves under the carbon sheet, means on the sheet advancing means for engaging the supported carbon sheet to move the carbon sheet off the supporting rods onto an advanced form sheet, and a gage rail carried by the support and spaced inwardly from the form sheet gaging means for retaining an edge of the carbon sheet in spaced relation to corresponding edges of the form sheets engaged by said form sheet gaging means.

9. In a tipping machine, alternate carbon and form sheet stations, sheet advancing means extending along said stations to successively gather a form sheet and then a carbon sheet, form sheet gaging means extending along said sheet advancing means to position the form sheets moved therealong by said advancing means in definitely positioned relation with said carbon stations, means at the carbon stations and selected form sheet stations for supporting applied sheets above the sheets advanced from the preceding stations whereby the advanced sheets move under a supported sheet, gage means spaced from said sheet gaging means for positioning selected edges of the carbon sheets relatively to the form sheets, glue applying means at selected stations and arranged to operate upon the form sheets for applying spaced glue stripes in definite relation to said edges of the carbon sheets for adhering a carbon sheet and a superimposed form sheet, pressing and forwarding means supported in alignment with the glue applying means and cooperating with said sheet advancing means for pressing said sheets into sealed contact, and means cooperating with said pressing and forwarding means for stacking said gathered sheets.

10. In a tipping machine, a plurality of sheet stations, sheet advancing means extending along said stations to successively gather sheets at said stations, sheet gaging means extending along said sheet advancing means to position the sheets moved therealong by said advancing means in definitely positioned relation with alternate stations, means at the alternate stations and selected other stations and spaced above said sheet advancing means for supporting applied sheets above the sheets advanced from the preceding stations whereby the advanced sheets move under a supported sheet, gage means at said alternate stations and spaced from the first named gaging means for positioning selected edges of the sheets applied at the alternate stations relatively to the sheets gaged by the first named gaging means, and means at selected stations and operating upon the sheets gaged by the first named gaging means for applying glue stripes to adhere a sheet applied at the alternate stations and a sheet applied at said selected stations respectively.

11. In a tipping machine, a plurality of sheet stations, sheet advancing means extending along said stations to successively gather sheets at said stations, sheet gaging means extending along said sheet advancing means to position the sheets moved therealong by said advancing means in definitely positioned relation with alternate stations, means at the alternate stations and selected other stations and spaced above said sheet advancing means for supporting applied sheets above the sheets advanced from the preceding stations whereby the advanced sheets move under a supported sheet, gage means at said alternate stations and spaced from the first named gaging means for positioning selected edges of the sheets applied at the alternate stations relatively to the sheets gaged by the first named gaging means, means at selected stations and operating upon the sheets gaged by the first named gaging means for applying glue stripes to adhere a sheet applied at the alternate stations and a sheet applied at said selected stations respectively, and pressing and forwarding means cooperating with said sheet advancing means for pressing said sheets into sealed contact.

DIETRICH DANEKE. 1 WILLIAM H. KUSI-IERA.