US629830A

US629830A - Feeding-machine attachment for printing-presses.

Info

Publication number: US629830A
Application number: US61074996A
Authority: US
Inventors: Wentworth G Trevette
Original assignee: LUCIUS W WINCHESTER
Current assignee: LUCIUS W WINCHESTER
Priority date: 1896-10-31
Filing date: 1896-10-31
Publication date: 1899-08-01
Anticipated expiration: 1916-08-01

Description

Patented Aug. 1, [899.

W. G. TBEVETTE. FEEDING MACHINEATTACHMENT FDR PRIN'HNG PRESSES.

7 (Application filed Oct. 31, L89! {No Model.)

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Patented Aug. l, I899.

. w a. TBEVETTE. FEEDING MACHINE ATTACHMENT FDR PRINTING PBESSES.

(Application filed Oct. 31, 1898.)

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a iii/aw git 3 (;No Model cu m m: nonals PETERS co. vuoroumu, wnsl-(mu'mm o c.

No. 629,830. Patanted Aug. I, 1899. W. G. TREVETTE. FEEDING MACHINE ATTACHMENT FOB PRINTING PRES-SE8.

(Application filed Oct. 81, 1896.)

(No Mudel.) 7 9 Sheets- $heet 3.

No 629,830. Patented Aug. 1, I899.

w. a. TBEVETTE.

FEEDING MACHINE ATTACHMENT FUR PRINTING PRESSES.

(Application filed Oct. 81, 1896.) Q B I 9 Sheeia-Simei 4.

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No. 629,830. Patented Aug. I, I899.

' w. a. TREVETTE.

FEEDING MACHINE-ATTACHMENT FOB PRINTING PRESSES.

(Application filed Oct. 81, 1896.)

{N0 Modal.)

No. 629,830. Patented Aug. I, I899. w. a. TREVETTE.

FEEDING MACHINE ATTACHMENT FOB PRINTING PRESSES.

(Application filed Oct. 81, X896.)

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Patented Aug. I, I899.

No. 629,830. I

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FEEDING MACHINE ATTACHMENT FOR PRINTING PRESSES.

IIIIIIIIIII 5g Patented Aug. I, I899.

W. G.-TREYETTE. FEEDING MACHINE ATTACHMENT FOB PRINTING PRESSES.

(Applicatiol; filed Oct. 31, 1896.)

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No. 629,830. Patented Aug. I, I899. W. G. TREVETTE.

FEEDING MACHINE ATTACHMENT FDR PRIN'I'ING PBES SESQ (Application filed on. 81, 1896.)

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FEEDlNG -MACl-llNE- ATTACHMENT FOR PRINTING-PRESSES.

SPECIFICATION forming part of Letters l atent No. 629,830, dated August 1,1899. Application filed October 31, 1896. $erial No. 610,749. (No model.)

To all whmn it may concern-.-

Be it known that I, WENTWORTH 4G. TRE- specification.

vide means to automatically examine every My present invention relates to certain new and useful improvements in a feeding-machine attachment for printing-presses; and

it comprises an apparatus which may be con-.

nected with and adapted to any well-known form of feeding-machine and likewise any known printing-press of the cylinder type.

Heretofore it has been customary and the practice still prevails to have anoperator whose sole duty it is to feedsingle sheets from a pile on thefeed-table of a printingpress to the press-cylinder. This operator must be careful to feed but a single sheet to the machine, must arrange the sheet properly in the machine and throw out all defective sheets, at the same time tripping the press with his foot to prevent the type from making an impression upon the tympan;

have beendescribed and some of, them have been put into actual use, but as far as I am aware the principle, as well as the construction hereinafter described as constituting my inventiomis entirely new with me and is essentially different in every respect from anything now existing in the art.

It is my primary object, therefore, to provide a machine which will automatically perform all of the operations and do whatever the operator has been accustomed to do heretofore.

Another object of the invention is to provide means for registering and squaring a sheet of paper in the machine just before it is taken by the press-cylinder of the printingpress, so that it will be delivered to the press properly arranged to receive an impression from the type.

Another object of the invention is to pro- Feeding-machine attachmentsfor printing-presses sheet of paper as it passes through the attachment and throw out all defective sheets or two sheets which may cling together and prevent more thana single perfect she-etfrom being taken by the press-cylinder'and carried through the press.

A further object of the. invention is to provide automatic devices for tripping the press whenever a sheet is thrown out as being defective or whenever the press-cylinder is allowed to turn without carrying a sheet of paper into the press mechanism; and a-still further object is to automatically stop all the operative mechanism after the press has been tripped successively apredetermined number of times. 7

In the apparatus hereinafter described the devices are arranged and adapted to throw out a sheet of paper the forward corners of which are, torn or mutilated, as well as to throw out two or moresheets which may be carried forward from the feeding-machine, and it will therefore be understood that, by

referringto an imperfect'sheet I mean such In the accompanying drawings, forming part of this application, Figure 1 is a side clevation ofa printing-press having my attachment applied thereto and showing the gen.-

eral arrangement of the gearing by which 1 power is communicated to the several parts, as well as the tapes which may be used for the purpose of conveying the paper from the feeding-machine to this attachment. In this figure I have illustrated only so much of the printing-press as seems to be necessary for the purpose of clearly and fully understanding my invention, the parts to which the dilferent devices constituting my invention are attachedbeing indicated in their proper relative positions in this figure. Fig.2 is a horizontal sectional view on the line 22 of ,Fig. 1, showing the position and arrangernentot the stopping devices of a'printingepress adapted to be operated automatically by my improvements. Fig. 3 is a top plan view of approximately one half of my attachment, the other half being constructed to all intents and purposes in every way the same as that shown, and the parts in this figure are hroken away gaged the sheet of paper.

in places to disclose the different arrangement and location of other parts. Fig. 4 is a top plan view of the registering, guiding, and tripping devices. Fig. 5 is a Vertical sectional view on the line 5 5 of Fig. 4:, showing the position of the guiding-arm and the registering device when the latter has first en- Fig. 6 is a sectional view on the line 6 6 of Fig. 4, showing the registering device in its most backward position after it has freed itself from engagement with the paper and raised out of operative position. Fig. 7 is also a sectional view on the line 7 7 of Fig. 4, showing the normal position of the parts. Fig. 7 is a transverse sectional View across the screw-shafts which support the guiding and registering devices, taken on the line 7 7 of Fig. 4. Fig. 8 is a transverse sectional view on the line 8 8 of Fig. 3, this view showing in full lines the position of the devices as they appear when the sheet is entering the attachment, the stop-fingers and throw-out fingers being shown in broken lines in the elevated position which they assume when the machine is throwing out an imperfect sheet. Fig. 9 is a transverse sectional view taken on the line 9 9 of Fig. 3. Fig. 10 shows the cam and lever for operating the register and guiding devices. Fig. 11 illustrates a corner of the attachment. Fig. 12

is a transverse sectional view showing the throw-out finger, rock-shaft, and the casting attached on one of its ends. Fig. 13 is a transverse sectional view on the line 13 13 of Fig. 3, showing in broken lines the normal elevated position of the tripper and in full lines the tripper in its position when resting upon the sheet of paper. Fig. 14 is a front elevation of so much of the mechanism as is shown in Fig. 3. Fig. 15 is a detail View of the tripping device, the tripper rock-shaft and the tripper-plate being shown in section. Fig. 16 is a top plan view of the tripper-plate. Fig. 17 is a transverse sectional view on the line l7 17 of Fig. 18, showing the manner of securing the stop-finger to the tripper rock-shaft. Fig. 18 is a transverse sectional view on the line 18 18 of Fig. 17. Fig. 19 is a bottom plan view of the stopfinger. Fig. 20 is a top plan view of the bottom guide. Fig. 21 is an enlarged view of the cam and lever devices for operating the tripper rock-shaft and the registering and guiding devices, the parts being shown in the position which they occupy when the nippers on the press-cylinder have just taken hold of the sheet and are proceeding to carry it into the press mechanism, the upper guides, the stop-fingers, and the tripping devices being-raised. Fig. 22 is a front view of the cam and lever devices shown in Fig. 21, the rods connecting said levers to the respective parts operated thereby being shown in section. Fig. 23 illustrates the position of the tripper-rock-shaft lever and its associated parts when the paper is entering the operative mechanism of my attachment and the stop-fingers are dropping into position. Fig. 24 showsthe position of the same parts after the stop-fingers have dropped and the register has closed upon and engaged the sheet and while the trippers are beginning to drop. Fig. 25 is a similar view, in which the parts are shown in the position they assume when the sheet is at rest in the attachment where it will be caught by the nippers of the presscylinder, or, if it is an imperfect sheet, the trippers will in the subsequent operation cause the throw-out fingers to raise the sheet so that it can be delivered into the imper feet-sheet receptacle. Fig. 26 is a detail View of the bell-crank lever which is adapted to operate the throw-out-finger rock-shaft. Fig. 27 illustrates the parts in the position when an imperfect sheet is partially delivered into the imperfect-sheet receptacle.

In the drawings I have not considered it necessary to show the parts of a feeding-machine, as such machines are now made in several styles, any one of which can be used in connection with my printing-press attachment, one of these machines being shown and described in my Letters Patent No. 562,866, dated June 30, 1896, and another in my Letters Patent, No. 562,867, dated June 30, 1896,

either of which can be employed with my attachment.

Referring to the drawings, in which like numerals of reference denote corresponding parts in all the figures, 1 designates the side frame of any ordinary printing-press to which my attachment may be applied, 2 the powershaft, to which motion is communicated in a suitable manner, and 3 the press-cylinder, which is mounted on a shaft 4, suitably geared with the power-shaft, so that motion can be imparted from the power-shaft to the presscylinder.

The attachment comprises a frame consisting of the sides 5, which are pivotally secured at 6 to the frame 1 and are connected together by means of the bar 7 and also by the shafts and other parts, hereinafter described. This frame carries the devices for registering and guiding the paper, the trippers, and the associated parts, and it is pivotally secured at its rear end to the frame of the printing-press, so that it can be raised entirely out of position whenever necessary for the purpose of getting at the various parts of the attachment and press. Then the attachment is arranged in operative position, as shown in Fig. 1, the forward end thereof issupported on the frame of the machine in such a position that the parts and devices will operate in their proper manner. I have shown in the drawings approximately one half of the frame and the devices and parts supported and carried by that half of the attachment, it being understood, of course, that the same parts and devices are arranged on the other half of the attachment, which is constructed in every way the same as that shown. tion hereinafter I will refer, therefore, to but In the descripone register being operated at a time, howof the press, and it carries a sprocket-wheel 9, anda sprocket-chain is trained over this sprocket and a corresponding sprocket on the shaft 4, or any other connections maybe made for the purpose of imparting movement to this shaft 8, which I will hereinafter refer to as the cam-shaft. This cam-shaft carries a cam 11, which operates the register-lever 12, this lever being pivotally mounted on a stud 13 and provided with a roller 14, which operates in contact with the cam 11. The upper end of this register-lever 12 is provided with a socket 15, preferably of a substantially angular form, to receive the end of a connecting-rod 16, which is attached at its other end to a bell-crank lever 17, the end of this rod being held in the socket 15 by means of a spring 18. A fixed screw-shaft 19 is suitably mounted in the frame of the attachment, and it extends almost to the center of said frame, being provided outside of the frame with a gear-wheel 20, which is arranged to -mesh with a corresponding gear-wheel 21 on a reciprocating screw shaft 22, similarly mounted in the frame and adapted to be reciprocated back and forth in a manner hereinafter described, the gear-wheel 21 being provided with a spline 23, whereby it is keyed to the

shafts

19 and 22.

upon the shaft 22 to turn the same when the shaft 19 is turned,but permits the reciprocation of the shaft 22. An arm 23, secured to the frame, prevents the loose gear-wheel 21 from moving with the reciprocatingvshaft. A link 24 connects the other arm of the bellcrank lever 17 to a plate 25, which plate is secured rigidly to the reciprocating screw shaft 22' by means of a collar 26, which is secured between the U shaped members of that portion of the plate 25 through which the shaft 22' passes. It will be understood, of course, that the

shafts

19 and 22 correspond A bar 27, provided with teeth on one side to constitute a rack, is secured rigidly to the plate 25, and the rack is arranged to engage witha pinion 28, rigidly secured on a shaft 29, supported in the frame of the attachment. The lower end of this shaft29 is provided with a head 30, and a coilspring 31 has one end secured in said head and its other end secured in a collar 32, which is fastenedv rigidly to the frame. The operation of these parts just referred to is such that when the rack-bar 27 is moved away from the center of the machine to the right in Fig. 3 by reason of the operation of the bell-crank lever 17 and its associated parts the spring 31 and the spring 18 are tightened, so that after this movement of the rack-bar is completed, the cam 11 having ceased to act upon the register-lever, the spring 31, acting on the shaft 29, and the spring 18, acting upon A shaft 8 is suitably mounted in the frame the connecting rod 16, cooperate to move the rack-bar 27 to the left in Fig. 3, thereby bringing the registering device forward and into contact with the sheet of paper. movement of the rack-bar 27 is communicated The in an opposite direction to the rack-bar 27 through the medium of the pinion 28, with 1 which they both engage, so that when the rack-bar 27 moves to the right the rack-bar 27, is moved to the left, and vice versa. It

will thus be seen that the reciprocating shafts 22 and 22' and the registering devices carried thereby are moved toward the center of the machine and each other under the influence of the spring 18 and the spring 31, so that the guiding and registering devices may engage the paper, and the same parts are moved away from each other by the operation of the register-cam, the rod 16, bell-crank lever 17, and link 24.

I Will now proceed to describe in detail the side guides and the registering devicesfor the paper, one set being arranged on each side of the machine. It will be understood, of course, that the registering device on one, side of the machine only is in operation at a time, the device on that side of the machine with which the paper is squared being set to engage the paper while the other registering deviceis arranged out of position.

The frame of the guiding device (see Sheet 3) comprises the ends 33, which are provided with holes to receive the screw-

shafts

19 and 22, which shafts are provided with right and left hand screw-threads, respectively, and support the guiding and registering devices and operate the same. A guide-arm 34 is pivotally secured at 35 to one end of the guide-frame, and on one side of its forward end is an extension 36. A fine adjustingscrew 37 is arranged in said extension and is adapted to be adjusted toward and away from the top plate 38 of the guide-frame, this screw constituting, with said top plate, a gage which is adjusted so that if more than a single sheet or predetermined number of sheets of the sheets of paper will be delivered into the i mperfect-sheet receptacle and the press tripped The guide-arm is provided with a shoulder 39, which is arranged to normally rest upon a shoulder 40 on the top plate 38, and the position of the forward end of the guide-arm is such with relation to said top plate when the guide-arm is downupon the paper that the registering device hereinafter described can operate to draw the sheet of paper sidewise to the shoulder 40, where its movement will be stopped, the position of the guide-arm close to the top plate preventing said sheet from crumpling or wrinkling during this operation.

The registering device comprises a block 11, adjustably mounted on the reciprocating screw-shaft 22, said block being provided with a bifurcated side extension 42 to span the screw-shaft l9, and thereby form a guide for the registering device in its operation, Fig. 8. The block has a rearwardly-extending arm 43, to which the register-arm-44 is pivotally secured, a locking device being also pivotally secured on said extension and rigidly connected with the register-arm. The locking device 45 comprises in its simplest .form a plate having a notch 46 therein to receive a roller 47 on a spring-pressed arm 48, said arm being secured to the under side of the block and held in position by means of a coil-spring 49. This registering device is adapted to move back and forth with the reciprocatin g screw-shaft 22, the top plate 38 of the guide-frame and the guide-arm being provided with slots 50, in which the upwardlyprojecting parts of the registering device slide. A lug 51 is arranged on the under side of the guide-arm 34 and provided with a friction-roller, which is arranged to ride up the incline 52 on the block 41, a spring 53 being attached to one end 33 of the guide-frame and the guide-arm to pull said arm downward when the registering device moves forward.

The operation of the registering device is as follows: After the register-lever 12 has moved to the right in Fig. 10 to rock the bellcrank lever 17 and the link 24, attached to said bell-crank lever, has moved the reciprocating screw-shaft to carry the registering device toward the side of the machine and register a sheet of paper the springs 18 and 31 operate to move the reciprocating shaft toward the center of the attachment to carry the registering device forward into position to engage the next sheet of paper. As the registering device moves forward in the slots from the position shown in Fig. 7 the spring 53 pulls the guide'arm down upon the paper, which is now resting upon the top plate 38, the lug 51 sliding down over the incline 52 of the block. While the registering device is moving forward in this position the spring-arm 48, engaging the locking-plate 45, holds the register-arm 44 in an elevated position; but as the device proceeds forward the releasing-pin 54 engages the lug 55 on the locking-plate and forces said plate out of engagement with the spring-arm 48, thereby bringing the register-arm down upon the paper, the roller 47 on the spring-arm 48 then engaging the front of the locking-plate to hold the register-arm in contact with the paper, Fig. 5. The reciprocating screw-shaft moves now to its original position under the influence of cam 11 and the parts actuated thereby, carrying with it the registering device, which is clamped upon the paper, the guide-arm also remaining down upon the paper. As the registering device proceeds to its rearward position, adjacent to the side of the attachment, the lug 51 on the guide-arm slides up the incline 52 on the block 41 and raises the guidearm to its elevated position, and about the same time the heel 56 of the locking-plate engages the end of the guide-frame and causes the locking-plate to force itself over the roller 47 until said roller engages the notch 46, thereby setting the registering device for another operation.

The screw-gage 37 is adapted to be set so finely that it will hold a single sheet of paper in position on the top plate 38, so that the registering device can pull said sheet of pa per over to the shoulder 40 and square the sheet in the attachment; but if two or more sheets of paper happen to get in position between the guide-arm and the top plate the screw-gage will press so hard upon the sheet by reason of its weight and the pull of spring 53 and bind the sheets of paper so tightly against the top plate that the registering device cannot draw said sheets over to the shoulder 40, and therefore, as will be hereinafter explained, the tripping mechanism will operate to trip the press and cause other devices to deliver the two or more sheets into the imperfect-sheet receptacle. The sliding and pulling movement of the registering device, which is preferably provided with a soft facing 57, is so easy that when the edge of the sheet of paper strikes the shoulder 40 the register-arm will slide over the sheet, and the position of the forward end of the guide-arm and the screw-gage with relation to the top plate is such that they will prevent the sheet from binding against the shoulder 40 or becoming wrinkled or crumpled. The registering and guiding devices are adjustable simultaneously by means of the screw-

shafts

19 and 22 and the intermediate gearing 20 21, said adjustment being accomplished by means of a crank or other device attached to the end of one of the shafts.

The attachment can be adapted to operate on paper of different widths by adjusting the registering and guiding devices on the screwshafts. This is accomplished by simply operating the gearing hereinbefore referred to to turn one of the shaf s, as 22, (see Fig. 3,) whereby through the lntermediate gearing the two screw-shafts are turned in opposite directions, and as these screw-shafts have right and left threads the guiding device and the registering device will be simultaneously adjusted. The ends of the guiding device are provided with threaded openings to receive the screw-shaf t 19, and they are also provided with openings to receive the reciprocating screw-shaft 22; but it will be understood that the holes for the reciprocating screw-shaft are not threaded, and said shaft simply works freely back and forth therein. The block of the registering device is provided with a threaded opening to receive the reciprocating screw-shaft, so that when these screw-shafts are turned, as hereinbefore explained, the guiding and registering devices will be moved, respectively, on the fixed and the reciprocating shafts.

When it is desired to throw the registerarm into such a position that it will not engage the paper in the operation of the ma chine, the lockin g-plate is forced forward until the roller at? engages the shoulder 58 there on, whereupon the register-arm will be held in the position shown in Fig. 6, this adj ust-.

ment being readily accomplished by pulling upon the register-arm and overcoming the tension of the spring-arm 4S and the spring 49.

I will next describe the devices for examin'ing the paper and tripping the press whenever an imperfect sheet or two or more sheets are fed through the attachment.

A trip-lever 59 is pivoted on the stud 13 ad jaceut to the register-lever 12, and it is operatedby a trip-cam 60, the lever being prm vided with a roller 61, which operates against said cam. This leveris provided with a socket 62, corresponding substantially in every way to the socket 15 of the register-lever, and it receives the end of a rod 63, which is connected at its forward end to a bell-crank 1ever 6- secured on the end of the tripper rockshaft 65, said shaft being mounted in the sides of the frame of the attachment.

The tripping device comprises an arm 66, which is pivotally secured in the lugs 67 on the guide-frame, as shown in Fig. 4, this arm carrying on its forward end a lateral slotted extension 68, which extension projects over a tripper-plate 69, provided at one end with a flange, by means of which it is secured to the side of the guide-frame, Figs. 6 and 15. The plate is provided with one or more holes 70, through which the tripper 71 projects when no sheet of paper covers the holes. This tripper consists of an adj usting-screw 72, having a projection adapted to enter the opening 70 in the tripper-platgz.

If a sheet of paper in perfect condition is fed through the machine, it is apparent that the tripper 71 will rest upon the paper which is between itself and the tripper-plate; but, as before stated, if no sheetof paper is there the tripper will project into the holes and cause the shoulder 73 on the rear end of the tripper-arm to engage the shoulder 74 on the collar 75, secured on the tripper rock-shaft, so that said shaft will be prevented from rocking to the full extent, as it will when a perfect sheet of paper is being carried to the press. Under ordinary conditions the shoulders 7 3 and 74: will not engage each other for the reason that the tripper rests upon the sheet of paper (see Fig. 13) and holds the rear end of the tripper-arm in such a position that the shoulder 74 on the collar will not engage the shoulder 73 onthe tripperarm; but if no sheet of paper covers the holes in the tripper-plate the tripper projects into said holes, the additional downward move-' ment of the tripper being sufficient to raise the rear end of the tripper-arm to such a height that the shoulder 74 will engage the shoulder 73, thereby stopping the rocking movement of the tripper rock-shaft. An arm 76 is arranged on said collar for the purpose of engaging a roller 77 on the rear end of the 'trippenarm and raising the tripper into the position shown in dotted lines in Fig. 13 when the rock shaft is rocked and the sheet of paper is passing into position upon the tripperplates.

A cam 78 is secured on the cam-shaft 8,

Sheet 7, and it engages a roller 79 on a throwout leverBO, this lever being mounted on the stud 13 and provided with a forwardly-projecting upper end 81. A catch-lever 82 is also mounted on the stud 13 between the throw-out lever 80 and the trip-lever 59, said catch-lever being provided with a pawl 83, which is adapted to engage the forwardlyprojecting upper end 81 of the throw-out lever. A lug Si is arranged on the side of the trip-lever 59 and projects into the path of the catch-lever, so that when said catch-lever is projected forward suificiently it will engage the lug 84 and carry with it the trip-leverfii).

A weighted arm 85 is pivotally secured to the frame and provided with a forwardly-projectin g end having an inclined face 86. hen, the trip-lever is moved rearwardly (to the left in Fig. 25) in its ordinary operation, the pin 87 rides upon the incline 86 of the weighted arm 85 and depresses said arm sufiicient to engage the rearward'ly-extending end 88 of the pawl 83, thereby disengaging said pawl from the throw-out lever; butif the shoulders 73 and 74 become engaged the tripper rockshaft is prevented from rocking its full distance, and therefore the trip-rod 63 does not move enough to bring the trip-lever back so that the pin 87 will engage the weighted arm 85 for the purpose of disengaging the pawl from the throw-out lever, and in this event the throw-out lever being engaged with the catch-lever through the medium of the pawl these levers are moved forward together, and as the catch-lever engages the lug 84: on the trip-lever said trip-lever is also carried forward and to a greater distance than is usual in its ordinary operation. During this prolonged forward movement of the trip-lever the trip-rod forces the bell-crank lever forward until the arm 89 of said lever engages a projection 90 on the casting 93, which is secured on the throw-out-finger rock-shaft, thisupward movement of the bell-crank lever being sufficient to rock the throw-outfinger rockshaft and cause the latter to raise the throwout fingers 92. Duringthis operation the arm 7 6 on the collar 75 has depressed the rear end of the tripper-arm and raised the tripper above the tripper-plate. (See Figs. 8, 11, and 12.)

The throw-out-fiuger rock-shaft 91 is journaled in suitable bearin gs in the frame of the machine above the vtripper rock-shaft and it carries the castings which support the throwout fingers. The casting 93, one of which is provided on each end of the throw-out-finger rock-shaft, is provided with a downwardlyextending curved end 93, which supports a finger-bar 9i, having the grooved side edges 95, Figs. 9 and 12. The throw-out fingers 92 are secured on said finger-bar, being provided with a downturned end 96 to engage the groove on one side of the finger-bar and a springplate 97, secured on its under side and arranged and bent to engage the groove on the opposite side of said finger-bar, so that these fingers and any number of them desired may be readily attached to the finger-bar by springing the downturned end 96 and the springplate 97 in place. Other means for fastening the throw-out fingers to the finger-bar may be employed; but this is an exceedingly simple and effective construction, which permits the ready attachment of the fingers to the This finger-bar is provided at or about its'center with a shoe 98, which is adapted to rest and slide upon a rest-plate 99, secured on the frame of the attachment, so that the finger-bar will always be maintained in its proper position to hold the throw-out fingers in place.

When the throw-out-finger rock-shaft is rocked, as heretofore described, by reason of the engagement of the bell-crank lever 89 with the 'casting 93, the finger-bar and the throw-out fingers carried thereby are raised sufficient to throw the sheet of paper into a position immediately in front of the deliveryrolls 100, which rolls are mounted on the frame of the press an d are operated by a train of gearing,comprising the

pinions

101 and 102 and the

gears

103, 104, and 105, from the shaft 4, which is operated through intermediate connections by the power-shaft. These delivery-rollers are located just in front of what I have termed the imperfect-sheet receptacle 106, which is any form of basket or device adapted to receive the imperfect sheets, as well as the duplicate sheets, which may be thrown out by the attachment mechanism and devices and not delivered to the press-cylinder. It is obvious that instead of this receptacle tapes running over rollers and various other means may be employed for carrying the imperfect sheets away and disposing of them; but the receptacle shown and described herein forms a very convenient and efficient means for getting rid of this paper and re ceiving it from the throw-out fingers, which are raised to such an elevation that the paper will pass directly between the two deliveryrollers. The paper is carried from the feedingmachine (not shown) to this attachment in any suitable manner, and tapes or other devices may be employed for this purpose, tapes 107, running over rollers 108, being used on the attachment for the purpose of carrying the sheet through the mechanismto the presscylinder. The nippers on the press-cylinder usually engage the sheet of paper and carry it through the press; but in the event that an imperfect sheet passes through the attachment the throw-out fingers raise said sheet so that the nippers cannot engage it, and to move the sheet forward so that it will be engaged by the delivery-rollers I providrollers 109, Fig. 8, mounted on arms 110, secured to the tripper rock-shaft 65,. which rollers are brought down into contact with the paper on the extreme forward edge of the tapes 107 when the said tripper rock-shaft is on its prolonged forward-and-upward move ment to force the paper into such engagement with the tapes that it will be advanced over the plate 111 and the throw-out fingers until caught by the delivery-rollers 100. It will be understood, of course, that the distance traveled by the sheet when elevated on the throwout fingers before it is caught by the deliveryrollers is very slightrbut in order that the operation of the machine, which is very rapid, may notbe in any wayimpeded I have deemed it desirable to employ the rollers 109, which quickly press the paper against the tapes 107, and thereby give to the sheet a movement sufficient to carry it to the delivery-rollers. A spring 112 is secured to the frame of the press and the heel 113 of the throw-out lever 80 for the purpose of holdingthe roller on the said lever in engagement with its cam 78, and the register-lever is also provided with a heel 114 to engage a stop 115 to limit its forward movement. A spring 116 is secured to the frame of the attachment and the trip-rod to hold said rod in its proper position in the socket 62.

An arm 117, Figs. 1 and 21, secured to the catch-lever and projecting rearwardly from its pivot, is pivotally connected by a link 118 to a bell-crank lever 119, this lever being connected with the ordinary trip-shaft of a printingpress. I have not shown this trip-shaf t in the drawings, for it is so well known and understood' and its operation is so simple that the figures necessary to illustrate it would only tend to complicate and confuse the illustrations of my invention; but the connections between the bell-crank lever 119 and the tripshaft can be arranged so simply that no further explanation thereof is deemed necessary, it being only essential that when the prolonged forward movement of the catch-lever raises the arm 117 and the link 118 the connections between the bell-crank lever 119 and the tripshaft shall be such as to operate the mechanism to trip the press, thereby preventing the tympan from receiving an impression from the type.

If a number of mutilated sheets should happen to be fed through my improved detachment, it is desirable that the press should be entirely stopped after a predetermined number of sheets have been thrown out by the throw-out fingers in the manner hereinbefore described, and for this' purpose I have provided suitable mechanism and illustrated in the drawings devices by means of which the press will be automatically stopped after it has been tripped three successive times, it being understood that the number of times the press shall be tripped before it is stopped is a matter of choice and convenience and can be regulated by Very simple changes, as desired.

An engaging pawl 120 is pivotally secured to the lateral arm- 117 of the catch-lever, and it is provided with a heel 121, which engages a stop 122on the frame of the .pressand normally holds the pawl out of engagement with the teeth 123 on the segmental plate 121, said plate being-pivoted to the frame of the press;

moved so that the lug 126 will strike the le-' ver 127 and disengage the shoulder 128 thereon from the plate 129, so that said lever is permitted to drop. The lower end of the lever 127 is connected to one arm of a bell-crank lever 130, this bell-crank being connected by a rod 131 with another bell-crank 132, Fig. 2, pivotally mounted on the forward part of the frame of the press. This bell-crank 132 is connected byalink 133 with a two-armed lever 134, this lever being pivoted on the frame of the press and having on its lower end a lug 135, arranged to engage the lower part of a shifting lever 136, also pivoted to the frame of the press,aud provided at its upper end with a keeper 137, through which the power-belt 138 passes and is trained around the pulley 139. Then the lever 127 is disengaged from the plate 129, it drops and causes the bell-crank 130 to force the rod 131 forward, thereby operating the bell-crap k 132 and its connections to swing the shifting lever 136 so thatit will carry the' power-belt from the pulley 139 to the idle pulley 140, thereby stopping the press. \Vhen'the shifting lever 136 is operated to throw the power-belt back upon the pulley 139, the lever 127 is returned to its original position, the spring 141 pulling onsaid lever so as to insure its shoulder engaging the plate 129.

An arm 142 is secured to the trip-lever 59, and it is adapted to strike the pawl 125,wnich is substantially in the shape of a bell-crank lever, and disengage said pawl from the segmental plate 124 whenever the attachment operates on a perfect sheet. In order to stop the sheet at its proper place in the machine and for the purpose of squaring the sheet in the machine, I provide stop-fingers 143, Figs.

8 and 17, these fingers being adjustably secured on the tripper rock-shaft G5 in the following manner: A collar 1 14 is rigidly secured on the tripperrock-shaft, and adjacent to said rigid collar is a movable collar 145. These collars are held together by means of a guideplate 146,said platebeingsecured rigidly to the movable collar 145 by means of the screw 147 and provided with the downturned end 1 18, which travels in a groove 149 in the side of the rigid collar, and the pins 150, which fit in lar. (See Fig. 18.) The movable collar has a forward extension 151, and a guide 152, secured on theunderside of thestop-finger 143,

' is provided with inwardly-turned flanges 154,

which slide in grooves in said forward extension 151. ported on the movable collar by means of the guide 152, and it is so arranged that said stop- The stop-finger is therefore sup finger can be moved back and forth, this adjustment being readily accomplished by means of an adjusting-screw 155, the head of which is provided with a groove 156 to re ceive the end of an arm 157,'wl1ose other end is secured to the stop-finger, shown in Fig. 1.7 ,so that when the ad j ustin g-screw is screwed in or out of the extension on the movable collar the stop-fingeris adjusted forward or back-- ward. The forward end of the stop-finger is turned downwardly to form a hook 15S,which coiiperates with the bottom guide 155) toform a stop for the paper when it first enters this part of the mechanism. This bottom guide is secured on an arm 160, which is laterally adjustable on a guide-bar 161, secured to the front of the attachment, and a flat spring 162 is arranged between the arm and the guidebar to hold the bottom guide in whatever position it maybe arranged and at the same time permit of its'beiug moved along on the guide-bar, Fig. 20.

In the operation of the printing-press it is sometimes desired to secure an impression of the form upon the tym pan for the purpose of building up the tympan wherever it may have hollows, as indicated by the character of the impression thereon. As my improved attachment automatically trips the press whenever a sheet of paper is thrown out or when a sheet of paper does not pass through to the press cylinder, it is necessary to provide some device for preventing this trip from operating, and in Fig. 21 l have shown a hand-lever 163,

which is in the form of abell-crank and piv- *otally secured on the frame of the press, its

forward end being arranged to engage a lug 164 on the pawl 83 when the said lever is operated to hold said pawl in an elevatedposition, so that it will not engage the throw-out lever 80. With this arrangement the machine can operate indefinitely without tripping the press; but as it is only desired generally to secure one impression upon the tympau I- have constructed this lever 163 tobe operated only while it is held back by hand.

If it is desired to operate the press and allow it to trip indefinitely without stoppingthe press in the manner heretofore described, the holding device 165'can he turned by means of the key 166 so that it will engage the engaging pawl and the holding-pawl and prevent them from moving forward to engage the teeth of the segmental plate 124. When this holding device is arranged as shown in Fig. 25, it prevents the

pawls

120 and 125 from moving forward to engage the teeth on the segmental plate, and therefore this plate cannot be operated so that it will strike the lever 127, as heretofore explained.

The part I have heretofore designated as a guiding device also operates, as will be readily understood, as a gage for the number of sheets to be fed, and also to sustain the paper as against buckling when being drawn by the registering device, and also to control the action ot'the registering device.

It will be understood that when the guidearm descends the shoulder 39 on said arm rests upon the side gage 40 and that the weight of the guide-arm 34 and the pull exerted by the spring 53 are normally sustained by the side gage 40, the space between the lower face of the guide-arn1 and the top plate 38 being determined by the height of the gage 40 and being normally sufficient to allow the passage between said plate and arm of four or five or any desired number of sheets of paper. Now if it is desired that but a single sheet of paper shall be fed at a time the gage 37 is screwed down, so that when the shoulder 39 rests upon the side gage 40 there will be just sufficient room between said gage and the top plate to admit of the passage freely and with the least possible friction of a, single sheet. tions the single sheet will be caught by the registering device and drawn over into contact with the side gage It) and thus be properly registered and alined. If, however, two or more sheets of paper should be fed under the guiding device when it is set for the feeding of but a single sheet, when the guide-arm descends the gage 37 will rest upon the two or more sheets and the combined weight of the guide-arm and the tension of the spring 53 will cause the gauge 37 to clamp the sheets of paper against the top plate so tightly as to afford sufficient resistance to prevent the registering device from moving the sheets over into contact with the side gage 40. The 'registering device will simply slide off of the sheets of paper without moving them and the sheets will be subsequently discharged from the machine as unregistered before going to the printing apparatus. It will thus be readily seen that the gage may be so adjusted as to permit the registering against the side gage of either one or two i or three sheets at a time, or, in fact, any desired number within the capabilities of the apparatus; but the adjustment of the gage.

Under these condi-.

but a single sheet of paper at a time and to prevent the feed of more than one sheet, whether the paper is of one thickness or another.

The rapid operation of the printing-press, as well as the other conditions which surround my attachment in actual use, are apt to result in a draft of air which will disarrange the sheet as it passes through the attachment, and in order to hold the sheet steadily in place I provide an upper guide 170, Fig. 13, which is rigidly secured on the throw-out-finger rockshaft and bent around into position above the sheet of paper and substantially parallel with the tripper-arm. This upper guide, any number of which may be used, will prevent the paper from being blown out of its position in the attachment, and as it is secured 011 the throw-out-finger rock-shaft it will be raised by said rock-shaft out of the way of the paper and with the stop-fingers when the tripping device operates.

If the side of the sheet is torn or mutilated in such a manner that the registering device will not draw the sheet of paper over and register it in the attachment, the sheet of paper of course will not cover the hole in the tripper-plate, and whenever this hole is uncovered during a complete operation of the machine the tripper in its downward movement will enter therein and cause the press to be tripped. The registering and guiding devices practically cooperate with the stopfingers to square the sheet of paper in the attachment, for as the sheet first strikes the downturned ends of. the stop-fingers and is then drawn over to one side and against the shoulder -10 on the top plate of the guiding device it will be arranged in the attachment so that its side edges will be parallel with the shoulder 40 and its front edge in perfect engagement with the stop-fingers. This operation is of essential importance in order that the sheet may be delivered to the press-cylinder in proper position for printing.

In the foregoing description of my improved attachment I have referred more or less to the operation of the various parts, and now for the purpose of fully explaining the invention and the manner in which the parts cooperate to perform their various functions and accomplish the desired results I will describe the operation of the whole machine.

In the ordinary operation of the machine when the sheets are all perfect and not more than one is fed from the feeding-machine to IIO the attachment each sheet passes down over the tapes 107 and the plate 111 until it engages the downturned ends of the stop-fingers, it being understood that any number of these fingers,'as well as any number of bottom guides and throw-out fingers, can be employed, as desired. The register on one side of the device having been placed in operative position on that side of the machine selected as the one with which the paper must be squared at or about the time the sheet strikes the stop-fingers, the spring 31, operating on the shaft 29, and the spring 18, operating on the rod 16, cause the reciprocating screwshaft 22 to move inward toward the middle of the machine, thereby operating the rack-bar 27, the pinion 28, and the correspoudin g rackbar 27 on the reciprocating screw-shaft 22 to move the shaft 22 toward the middle of the machine and thereby bring the holder-arm down into contact with the paper and carry the registerforward in the slot 50, so that it will drop upon the sheet and move it forward to the shoulder 40. Previous to this movement of the parts the cam 11 has actuated the connecting-rod 16, bell-crank lever 17, link 2&, and the rack-bars to move the reciprocating shafts away from each other and thereby carry the registering devices toward the sides of the attachment to register the sheet.

It will be understood that the shafts '19 and 22 are duplicated, the corresponding shafts being numbered 19' and 22, Fig. 3, and the reciprocating screw shaft 22 is operated through the medium of the link 24 and its connections with the screw-shaft- 22, the rackbar 27, and the pinion 28, these parts just mentioned being exactly duplicated on the opposite side of the pinion in the plate 25, the collar 26, and the rack-bar 27.

The screw-gage. 37 has of course been previously adjusted to the thickness of the paper being operated with, so that it will hold a single sheet of paper between itself and the top plate 38 in such a way that the register can pull the sheet back to the shoulder 40; but if two sheets or more than two sheets should happen to be fed into the attachment the holder-arm will hold said sheets so tightly against the plate that the register will be unable to'pull the sheets over to the shoulder 40 and will therefore leave the sheets in such a position that the holes in the tripperplate will be exposed, and of course the tripper will enter the holes and operate the trip mechanism to trip the press. As the sheet strikes the downturned ends of the stop-fingers and is drawn to the shoulder 40 by the re ister it will be squared with these partsthat is to say, it will be arranged in contact with the ends of the stop-fingers and the shoulder 40 without being crumpled or wrinkledand the shoulder 40 and ends of the stop-fingers are in planes at right angles to each other, so that the sheet is held with one side parallel to the shoulder 40 and its frontedge parallel with the ends of the stop-fingers. If the sheet is perfect, it will be drawn over to the shoulder 40, the tripper will descend, and as the tripper-plate is so arranged that the sheet when drawn over, as described, will cover the holes 70 the tripper in descending will rest upon the paper over said holes, and therefore the tripper rock-shaft will operate and the shoulders '7 3 and 74 will not become engaged. This will allow the tripper-lever to move backward sufficiently for the pin 87 to engage the inclined face of the pivoted arm 85, and as the forward end of said arm descends it will release the pawl 83 from engagement with the throwout lever, and therefore none of the trip mechanism will be operated; but,assurning that the sheet entering the mechanism has one of its forward corners torn off, the operation is as follows: The register engages the sheet and draws it back to the shoulder 40; but as the corner of said sheet has been torn off the holes in the tripper-plate at that corner will be exposed, and consequently the tripper will enter said holes, thereby raising the rear end of the tripper-arm into the position .shown in Fig. 15, so that the shoulders 73 74 become engaged and locked, thus preventing the rock-shaft from moving far enough to push the trip-lever back, so that the pin 87 will engage the incline of the arm to release the pawl 83 from the throw-out lever. Therefore as the throw-out lever is moved forward by its cam 78, the pawl 83 being in engagement with the forwardly-projecting upper end of said throw-out lever, the catch lever 82 is carried forward with the throwout lever and in its forward movement engages I the lug 84: on the trip-lever and moves the trip-lever forward to a point beyond the limit of its ordinary travel. This prolonged forward movement of the trip-lever rocks the tripper rock-shaft forward a greater distance than usual and causes the arm 89 of the bellcrank lever 64 to engage the projection 90 on the casting 93 and rock the throw-out-finger rock-shaft upward to raise the throw-out finment of the catch-lever and the press is tripped, this upward movement of the lateral arm also operating the engaging-pawl'120 and the holding-pawl 125, so that the segmental plate is advanced the distance of one tooth toward the lever 127. If two more imperfect sheets are fed to the machine, the segmental plate will be advanced one tooth for every sheet, and asthe third sheet enters the machine the lug 126 will disengage the shoulder 128 of the lever 127 from the plate 129, thereby causing said lever to drop and operate the intermediate mechanism and the shifting lever to stop the press.

The parts of the machine herein described are duplicated on each side of the attack ment, and they all operate, with the exceptionof one register device.

It is obvious, of course, that a number of trippers may be arranged and located over the front edge of the paper, so that they will operate to trip the press it there is a piece torn from the sheet between the corners thereof on the front edge, and likewise trippers might also be located on the sides of the paper and operated in the manner described in connection with the trippers I have shown. I have referred particularly to trippers adapted to operate upon the corners of the paper, for the reason that the corners of sheets are torn ofi much more frequently than any other parts of the sheet.

The parts are all adjustable forthe purpose of operating on sheets of different sizes. The screw-shafts 19 22 19 22 can be adjusted to move the holders and adjusting devices nearer to the center of the attachment or nearer to the sides thereof, as desired, and the trippers, as well as the guides and stop-fingers, are all adjustable to facilitate the adjustment and operation of the machine. The manner in which the stop-fingers are supported from the movable collars 145 permits of said fingers being raised, so that the machine can be examined or cleaned or for any other purpose desired.

' If two sheets are thrown out of the attachment by the throw-out mechanism successively, the holding-pawl 125 will have engaged two teeth on the segmental plate 124, and if the next sheet is also imperfect and thrown out the holding-pawl will engage the third tooth and the press will be automatically stopped; but if the third sheet is a perfect sheet and is not thrown out, but passes to the press-cylinder, the arm 14.2 on the triplever will strike the pawl 125 and disengage the latter from the segmental plate, so that the press will not be stopped.

I have herein referred to my improved attachment as operating upon a single sheet of paper, the parts being easily adjusted so that only one perfect sheet of paper can be properly advanced through the attachment; but it will be understood by those skilled in the art that the parts may be adjusted to operate successfully on more than one sheet and upon cards or envelops and other articles. For example, the guiding device may be adjusted so that it will permit the registering device to register two sheets of paper or two cards or two envelops at one time and effectually prevent the registration of three sheets.

I Having thus fully described my invention, what I claim, and desire to seen re by Letters Patent, is-

p 1. The combination with the frame of a printing-press, of a feeding attachment comprising a frame secured to the press-frame, a guiding device adapted to engage and hold a predetermined number of sheets of paper, a register adapted to engage the paper fed under the guiding device and register the same on one side of the attachment-frame only when less than the predetermined number of sheets are fed under the guiding device, and means for operating said register immediately after the guiding device has engaged the sheets of paper, substantially as described.

2. The combination with the frame of a printing-press, of a feeding-machine attachment comprising a frame, a registering device and devices for guiding the sheet of papercarrying means adapted to prevent the registering device from registering two sheets which may be held in the guiding devices by holding said sheets so tightly as to overcome the drawing action of the register, substantially as described.

3. In a feeding-machine attachment for printing-presses, a guiding device comprising a frame, a top plate, a guide-arm adapted to be brought down into contact with a sheet of paper on the top plate and loosely hold a single sheet of paper so that it can be registered but tightly holding more than a single sheet to prevent registration, and means for operating said guide-arm, substantially as described.

4. In a feeding attachment for printingpresses, a guiding device com prising a frame, a top plate, a guide-arm pivoted on the frame, a gage carried by said guide-arm for holding tightly more than a predetermined number of sheets of paper to prevent registration thereof, and means for operating said guidearm, substantially as and for the purpose described.

5. In a feeding attachment for printingpresses, a guiding device comprising a frame, a top plate and a guide-arm pivotally secured to said frame, an adjustable screw arranged in said arm and adapted to permit the passage between it and the top plate of only a predetermined number of sheets of paper,and means for operating said guide-arm, substantially as described.

6. In a feeding-machine attachment for printing-presses, a guiding device comprising a frame, a top plate, a guide-arm pivotally secured tothe frame, a gage carried by said guide-arm, a shoulder on the top plate, a shoulder on the guide-arm adapted to be brought adjacent to the shoulder on the top plate, and means for operating said guidearm, substantially as and for the purpose described.

7. In a feeding-machine attachment for printing-presses, a guiding device com prising a frame, a top plate, a guide-arm pivotally secured to the frame and carrying a gage, a

shoulder on the top plate, devices for registering a sheet of paper against said shoulder, and means for operating said guide-arm and registering devices, substantially as described.

8. In a feeding-machine attachment for printing-presses, a guiding device comprising a frame, a top plate, a guide-arm pivotally secured to the frame, a shoulder on the top plate, a shoulder on the guide-arm adapted to lie adjacent to the shoulder on the top plate when the guide-arm is brought down into contact with a sheet of paper on the top plate, means for engaging said sheet While it is held between the guide-arm and top plate and register the same in contact with the shoulder on the top plate, and means for-operating said guide-arm and registering means, substantially as described.

9. In a feeding machine attachment for printing-presses, a guiding device comprising a frame, a top plate having a shoulder thereon, a guide-arm pivotally secured to the frame and provided with a shoulder, a registering device to engage the sheet of paper between the guide-arm and the top plate and register it with the shoulder on said top plate, means for operating said guide-arm and registering device, and a screw-gage carried by the guidearm and adapted to be adjusted to hold a single sheet of paper lightly so that the register-' ing device can move the same and hold two sheets of paper so securely that the registering device cannot move them, substantially as described.

10. In a feeding-machine attachment for printing-presses, a guiding device comprising a frame, a top plate anda guide-arm pivotally secured to the frame and adapted to hold a sheet of paper lightly between itself and the top plate so that one sheet can be registered but more than one sheet held so tightly as to' provided with an incline, means for moving said registering device back and forth, a lug on the guide-arm adapted to slide on said incline, and a spring connected to the guidearm and to the guide-frame, substantially as and for the purpose described.

12. In a feeding-machine attachment for printing-presses, the combination with aguiding device, a top plate and a pivoted guidearm, of a registering device adapted to be moved back and forth and comprising a block having an incline thereon, a register-arm carried by said block and arranged to operate in .slots'in the guide-arm and top plate, means per, of registering devices'carrying a vertically-operating register-arm adapted to be antomatically actuated to engage the sheet un' der said guiding device and register the same, and means for reciprocating said registering device back and forth between the two ends of the guiding device, substantially as described.

14. In a feeding attachment for printingpresses, the combination with a guiding device and aside gage, of a registering device comprising a reciprocating block, a registerarm pivoted thereto and coacting with said block to form gripping-jaws a locking-plate secured to, and depending at an angle from, said arm andprovided with notches in its edge, a spring-arm secured to the block and carrying a roller adapted to engage said plate and means for rocking said arm and plate upon their pivots at each reciprocation of said block, substantially as described.

15. In a feeding attachment for printingpresses, the combination with a guiding device and a side gage, of a registering device comprising a reciprocating block, a registerarm pivotally mounted on said block and coacting therewith to form a gripping-jaw, a locking-plate secured to, and depending at an angle from, the register-arm and provided with notches in its edges, a spring-arm secured to the block and adapted to engage the notches in the edge of the locking device and a stop adapted to engage and check the advancing movement of the lockingplate, so as to disengage the spring-arm from the notches in the locking-plate and cause the registerarm to swing on its pivot and, be thereby caused to grip the paper upon said block, said stop also operating to cause the spring-arm to engage another notch in the locking-plate to hold the register-arm yieldingly clamped on the paper, substantially as described. 16. In, a feeding-machine attachment for printing-presses,the combination with a guiding device, of a register device adapted tobe moved back and forth to register a sheet of paper in the guiding device, and means for operating said register, said register comprising a block, a register-arm pivotally mounted on said block, a locking device rigid with said register-arm, a spring-arm adapted to engage the locking device to hold the register-arm in an elevated position, a pin onthe guiding device arranged to engage said locking device as the register moves forward to bring the register-arm into contact with the sheet of paper on the guiding device and lock the same, substantially as described.

17. In a feeding-machine attachment for printing-presses,the combination with a guiding device, of a registering device adapted to be clamped upon a sheet of paper in the guiding device and register the same in the attachment, means for moving the register back and forth, said register comprising a block havin g an arm thereon, a register-arm pivoted to said arm on the block, a locking plate ICC