US759971A - Sheet-registering means for paper-feeding machines. - Google Patents

Description

No- 759,971. PATENTED MAY 17, 1904. T. C. DEXTER & H. HALLSTREAM. SHEET REGISTERING MEANS FOR PAPER FEEDING MACHINES.

APPLICATION FILED FEB. 20, 1903.

6 SHEETS-SHEET 1 R0 MODEL.

No. 759,971. PATENTED MAY 17, 1904. T. 0. DEXTER & H. HALLSTREAM. SHEET REGISTERING MEANS FOR PAPER FEEDING MACHINES.

APPLICATION FILED FEB. 20. 1903.

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No. 759,971. PATENTED MAY 17, 1904.

T. G. DEXTER & H. HALLSTREAM. SHEET REGISTERING MEANS FOR PAPER FEEDING MACHINES.

APPLIUA'IION FILED FEB. 20, 1903.

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T. 0. DEXTER & H. HALLSTREAM. SHEET REGISTERING MEANS FOR PAPER FEEDING MACHINES.

APPLICATION FILED FEB. 30, 1903.

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PATENTED MAY 17, 1904. T. G. DEXTER & H. HALLSTREAM.

SHEET REGISTERING MEANS FOR PAPER FEEDING MAGHI NBS. APPLIOATION FILED FEB. 20, 1903. N0 MODEL.

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UNITED STATES Patented May 17, 1904.

PATENT OFFICE.

TALBOT C; DEXTER AND HENRY HALLSTREAM, OF PEARL RIVER, NEW YORK; SAID HALLSTREAM ASSIGNOR TO SAID DEXTER SHEET-REGISTERING IVIEANS FOR PAPER-FEEDING MACHINES.

SPECIFICATION forming part of Letters Patent No. 759,971, dated May 17, 1904. Application filed February 20, 1903. Serial No. 144.282- (No model.)

To all whom it may concern:

is necessary that the sheet should be properly registered in course of transit.

The ob ect of the invention is to provlde an improved construction in side-registering 2o mechanism which can readily be adjusted to suit the different sizes of sheets to be fed to the press or other machine and means for arresting the registering mechanism after it engages the sheet for registering purposes and 2 5 means for withdrawing certain parts of the registering mechanism from contact with the sheet after the sheet has been properly positioned or registered.

ln-feeding-machines where side-register 3o grippers are employed it is desirable to arrange the pile of sheets so that they can be fed, for example, to the drop-guides of a printing-press with the registering edge of the paper a short distance away from the reg- 3 5 istering-face of the gripper. This cannot always be accomplished, because the sheets will vary in the pile on the feeding-machine, so that some sheets when conveyed to position to be registered will barely miss the register- 4 ing-face of the gage, while other sheets will be a considerable distance from it. In con sequence of such irregular feeding of the sheets the registering mechanism moving to the limit of its stroke-that is, the position 4. 5 where the paper is seized prior to being moved to registering positionwill cause some of the sheets to be buckled for the full inward movement of the mechanism, while others will not be buckled so much. This irregularity of feed and pronounced buckling of the sheets by the 5 side registers is objectionable, particularly so on thin or light-weight paper, as it prevents the registering edge of the sheet from maintaining a parallel relation with the registering-face of the gripper and is also liable to withdraw the sheet from proper contact with the drop-guides of the press or such other guides as may be employed to hold the sheet while it is being side-registered.

When it is attempted to operate the present side-registers by arranging the pile .of sheets so as to be fed to the register in a manner to buckle the sheet as little as possible, there is danger of the registering-face of the gripper failing to reach the registering edge of the 5 paper, which would result in the improper registering of the sheet.

Another objection to the present construction and operation of side-registers is due to the fact that when the registengripper has 7 drawn the paper into registering position the edge of the sheet will rest against the registering-face of the gripper. When the printing-press grippers take the sheet, it will be drawn through the registering mechanism with the edge of the sheet in contact with the registering-face of the gage for its full length. The nature of the paper is such that it will soon destroy the hardened registering-face of the gage, and in consequence impair its value as a register. This feature is especially objectionable inview of the fact that the edges of the sheets are rarely cut at rightfangles to each other, thus causing the sheet to be crowded against the register on itspassage to 5 the press-cylinder. This crowding tendency is liable to cause the sheet to pass around the cylinder with a wave through it that will pro duce a wrinkle in printing, and again it is apt to tear off small sections from the edge of the 9 sheet, which will cling to the registering-face of the gage and often clog and cause the loss of succeeding sheets by improper registering. This objectionable feature of the side-register also prohibits the feeding and registering of what is known as deckle-edge paper.

To overcome the aforesaid objectionable features, we have constructed asideregister ing mechanism that is controlled by suitable reciprocating means for advancing the gagebar to the registering edge of the sheet and is provided with means controlled by tripping devices movable into the path of the sheet and actuated by the sheet to control suitable means for yieldingly arresting the gage after it engages the registering edge of the sheet. The operative parts are so arranged that the gage will remain in its arrested position until the gripping-finger seizes the sheet, after which the registering mechanism willbe ready to move the sheet into registering positioni The gage and tripping devices under the influences of the reciprocating means will first move away from the edge of the sheet a short distance, after which the sheet will be moved to registering position and released, the registering-face of the gage and the tripping devices being held out of the path of the sheet during its transit to the press.

The present invention consists in the combination and arrangement of parts for producing the desired results, all as hereinafter fully described, andmore particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a general plan view showing the application of the invention to a feeding-machine and printing-press. Fig. 2 is an enlarged plan view showing the register more fully in detail.

Fig. 3 is an elevation of Fig. 2, showing the parts in their initial position. Fig. iis a plan view similar to Fig. 2 with certain parts omitted and the remaining parts in shifted position. Fig. 5 is a detail plan View similar to Fig. 2, but in shifted position and with some of the parts omitted and broken away for clearness. Fig. 6 is a view showing the tripping mechanism and gage in normal position. Fig. 7 is an elevation of the parts shown in Fig. 5, disclosing the position of the parts after the sheet is engaged by the tripping mechanism. Fig. 8 is a similar View showing the tripping mechanism after it has been operated. Fig. 9 is an elevation similar to Fig. 3, but with certain parts omitted and broken away to show the operation of the sheet-retaining finger. Fig. 10 is a like View with the parts shown in shifted position. views of parts of the mechanism for operating the sheet-retaining finger.

In the practical application of the invention, 1 is the impression-cylinder, 2 the underguides, and 3 the front guides operated by any suitable means for the purpose of throwing them down into gaging position and raising them into inoperative position at the proper time in the operation of the press. This mechanism is very common and well understood in the art and has not been illustrated. 1 represents part of the frame of an automatic paper feeding machine having journaled therein a tape-roller 5, driven by the feedingmachine mechanism.

Figs. 11, 12, and 13 are detail A feed-board 10 of ordinary construction is suitably mounted in proper relation to the feeding-machine and the impression-cylinder of a printing-press. A series of conveyer tapes or bands 6, passing over a roller 7, suitably journaled above the upper face of the feed-board 10, are arranged to convey succes sive sheets of paper from an automatic feed ing-machine (not completely shown) to the printing-press. These bands or tapes 6 de' posit the sheet upon the feed-board wlth its forward edge in contact with the printingpress front guides in readiness for the operation of the side-registering mechanism.

The side-registering mechanism, as hereinafter described, is an improvement on Patent No. 669,7 24c, granted March 12, 1901, to Talhot (1. Dexter for improvements in sheetoonveyer frames. T-wo complete sets of sideregistering mechanisms are disposed in reverse position with relation to each other and adjacent to the'opposite sides of the conveyerframe. ters is essential, because the sheet is first registered to one side, and when feeding the sheet the second time the sheet is turned over to present the same front edge to the front guides 3 of the press or other machine, and also present the same registering edge of the sheet to the opposite side-register.

In illustrating I the present invention but one completeside-registering mechanism is shown inasmuch as the arrangement of parts and operation of the same are in exact duplication.

' J ournaled in the feeding-machine frame is a rock-shaft 15, that has mounted thereon a dependent arm 16, the upper end of which car ries'a roller 17, engaging a rotary cam 18,

driven by the actuating-gears of the feedingmachine. (Not shown.)- The lower end of the dependent arm 16 has attached thereto a rod 20, that extends forward and is connected to a longitudinally-movable cam-plate 21, mounted in the sides of the bracket 25. This bracket forms part of the sheet-conveying frame and is adapted to support the operating parts of the registering 'mechanism. The cam-plate 21 has its outward longitudinal edge formed with an'inclined portion 22, which constitutes a cam-face, Figs. 2 and 4. Supported in a slot 23in the bracket 25 is a transverselymovable bar 27, that is controlled in one direction of its longitudinal movement by a spring 28 and in the opposite direction by the cam-plate 21 through the medium of a roller 29, mounted on the transverse bar 27 to operatively shift the bar for the purpose hereinafter more fully explained. The inner end of the transverse bar 27 is supported and guided in a block 30, that is secured to the tierod 31 and rests on the feed-table 10.

Extending transversely over the' feed-table from the bracket25 to a supporting-block 30 are two guide-rods 3 1, adapted to receive This arrangement of the side-regisapproximately the required position.

rsa v'i thereon and form the guiding-support for two brackets that will hereinafter be referred to as the register-bracket 35 and the gripper bracket 36. These brackets are capable of longitudinal adjustment on their guide-rods to accommodate the varying sizes of sheets to be side-registered and are adjusted and sustained in their adjusted position by means of a screw 37, fastened at one end to an ear 38 on the register-bracket. The opposite end of the screw 37 passes freely through a smooth bored eye in a head 39, formed on a post 41, said clamp-post embracing the transverselymovable bar 27 upon which it is. adjustably secured by means of a set-screw 42, asshown in Fig. 4. At opposite sides of the post-head 39 and threaded upon the screw 37 are thumbnuts 43. When it is desired to adjust the register and gripper-brackets, the clamp 41 is first released upon the bar 27 by loosening screw 42, and the brackets 35 and 36 and connected clamp 41 are then shifted by hand 1to T18 clamp 41 is then secured to bar 27 by tightening screw 42, and'the nuts 43 rotated upon screw 27 to move brackets 35 and 36' relatively to clamp 41 to accurately adjust them for the size of sheet which is to be operated. A rockshaft 47, journaled in an upright 48 on the bracket 25 and also having a bearing in a standard 49, forming part of the register-' bracket 35, is given an intermittent rocking motion by means of a radially-projecting fin or lug 50 on shaft 47 and the adjustable tappets 51, secured in the tops of posts 52, that are attached to the reciprocating cam-plate 21. The intermittent action of this shaft controls the operation of the gripping block or finger to cause it to grip the sheet against the gripper-bracket 36 on, its inner movement and with the gripper-bracket move the sheet into proper registering position and release it in that position.

Projecting upwardly from the gripperbracket is a lug 61, on which is pivotally supported, as shown at 62, a rock-arm 63, having pivoted thereon at one end a rod 64, that passes diametrically through a barrel 65, pivotally supported between two upwardly-projecting ears 66 on the gripper-bracket 36 A Spring 67, surrounding the rod 64,-bears'with its opposite ends on the arm 63 and the barrel to cause the arm 63 to be thrown quickly past the center of its motion to produce a snap action, so as to quickly move the gripping-finger to grip the paper against the gripper-bracket and quickly release the paper from the same. The gripping block or finger 60 has a shank 70, provided with an elongated vertical slot 71, in which rides a screwstud or pin inserted in the arm 72, forming part of and projecting from the rockarm 63. When the rock-arm is in the position shown in Figs. 3 and 9, the pin on arm 72 engages the top of the slot 71 and suspends the gripping block or finger 60 just above the sheet;

but when the rock-arm is operated andthe parts assume the position shown in Fig. 10 the pin on arm 72 will engage the bottom of the slot 71 and hold the gripping-finger firmly down against the sheet which rests on the gripper-bracket 36. that the gripping-finger has but a slight vertical movement due to the pin on arm'72 riding in the slot 71 for the greater part of the movement of. the rock-arm, and thereby al- Thus it will be seen lowing the gripping-finger to remain as close 1 i rock-arm are two laterally-projccting lugs or bosses 76, that are alternately engaged by the oscillating arms 75 to control the action ofthe gripping-finger. The oscillating arms 75 form part of a collar 77, which is adjustable on the rock-shaft 47 and is held in position to operate the arm 63 by the standard 49 on one side and the collar 46 on the other side, both of which are joined together by a link 45, so as to leave an intervening space between the collars, for the purpose hereinafter more fully described. The arrangement, construction, and coaction of the register-brackets and their operative parts constitute the essential points of merit in this invention, and the result attendant upon the operation of these parts is i of much importance in the side-registering .1 mechanism herein specified. The under or register bracket 35 is the driven bracket, it being secured by means hereinbefore explained to the transversely-movablebar 27, which is in turn operated by the reciprocating cam plate 21. The guide-rods 34 pass through .ears or lugs 74 on the registerbracket 35 and support and guide said bracket, so that it is capable of movement under the influence of the transversely-movable bar 27. is a vertically-projecting gage-bar formed integral with the register-bracket35, the inner surface 81 thereof serving. as the registering-face to engage the registering edge of the sheet when the parts are operated.

Located directly over the register-bracket, Fig. 5, is the gripper bracket 36,also provided with ears or lugs 85, that are engaged by the guide-rods 34 and upon which the bracket 36 is adapted to slide. It is desirable to have the cars 85 engage the guide-rods 34 with sufiicient friction to hold the grip1')er-bracket in the position into which it may-be moved by its controlling operative parts. a The cars 85 on the gripper-bracket 36 are adapted to slide on the guide-rods 34 betwee'nthe cars 74 of the register-bracket 35 and with an interven ing space between the ears on the respective brackets to permit a certain amount of relative movement between the brackets before the movement of the register-bracket'35 will cause the movement of the gripper-bracket 36. The gripper-bracket 36 is cut away, as shown at 90, to permit the vertical gage-bar 80 to protrude therethrough and engage the registering edge of the sheet .when the brackets are moved inward to seize the sheet preparatory to moving it outwardly into registering position. The initial position and relation of these brackets are shown in Fig. 2 that is, the innermost ear or lug 74 of the register-bracket 35 abuts the innermost edge of the ear or lug 85 of the gripper-bracket 36, thus leaving an intervening space between the outermost ears of the bracket 35 and the outer faces of ears of bracket 36. When the register-bracket 35 is moved inwardly, it will move the distance of the intervening space between its ears 74: and the ears 85 of the bracket 36 before the gripper-bracket 36 will be engaged by it, when both brackets will inwardly move together as one piece. The gage-bar 80, moving with the register-bracket, strikes the edge of the gripper-bracket and engages the register edge of the sheet, as shown in Fig. 5. In order to prevent the extreme buckling of the sheets being registered by the inward'movement of the brackets and the consequent difficulties hereinbefore pointed out, it is necessary to provide means for arresting the movement of the brackets immediately after the registering-face of the gage-bar has engaged the registering edge of the sheet. To accomplish this, a pawl 91, pivoted to the lug 92 on the register-bracket 35, is adapted to engage a rack-bar 94:. This rack-bar 94 is movably supported in guides 95 and 96, one of which is attached to the guide-rod 34C and the other to the block 30. In order to permit a slight longitudinal movement of the rackbar 94 when the pawl 91 engages it, a spring 99 is located on the inner reduced end thereof between a shoulder 9& on the bar and the guide 96. When the sheets are delivered into position to be registered, the registering edge of the sheets will vary with relation to the initial' position of the gage, so that when the gaging means moves inward and the tripping devices are actuated by the sheet to drop the pawl into engagement with the rack a certain amount of longitudinal movement of the rack is necessary in order to insure the gage properly engaging the registering edge of the sheet. If the pawl should drop, so as to engage the inclined portion of a tooth, the gage would continue to move until the pawl rested against the vertical edge of a tooth, when the gage would be yieldingly arrested after having slightly buckled the sheet, as shown in Fig. 8. If the sheet should be so positioned that the pawl will drop and immediately engage the vertical edge of a tooth on the rack,

the gage would not be abruptly arrested, for the spring 28 is adequately'strong to overcome the rack-bar spring 99 andmo've' the rack a sufiicient distance to allow the gage to engage the sheet. Of course it is apparent that when the pawl engages the rack the rack will always have a slight longitudinally-yielding movement.

The engagement of the pawl with the rack for arresting the inward movement of the register bracket is controlled by a pendulum 110, pivoted on lug 111, projecting from one of the cars 66 on the gripper-bracket and depending in the path of the registering edge of the sheet when the brackets are operated. At right angles to the pendulum andextending from the top thereof is a finger 115, that is engaged by an upwardly-projecting arm 116, forming part of the pawl 91. This arm 116 coacts with the finger to hold the pendulum away from the registering edge of the sheet during the transit of the sheet before and after being registered. By referring to Fig. 6 the initial position of the brackets and the consequent relation of the coacting parts of the pendulum and pawl will be observed. When the register-bracket 35 moves inward, as shown by arrow in Fig. 6, the arm 116 will advance under the finger 115 and permit the pendulum to assume a vertical position, and at the same time the finger 115 will drop down and rest on an extended portion 117 of the arm 116 and engage ashoulder 118 on the arm 116 and hold the pawl 91 in suspended position, as shown in Fig. 7. The registerbracket having moved a sufficient distance to engage the gripper-bracket, they both move inwardly as one piece, causing the pendulum to be pressed against the registering edge of the sheet, which will tilt the pendulum and release the finger 115 from engagement with the shoulder on the arm 116 and permit the pawl to drop into engagement with the rackbar. The dropping of the pawl into engagement with the rack-bar does not instantly arrest the inward movement of the brackets and operating parts, owing to the fact that the rack-bar is capable of a slight longitudinal movement which permits the registering-face of the gage-bar to positively meet the registering edge of the sheet. After the parts have assumed the position shown in Fig. 8 the gripping-finger will descend and hold the sheet against the gripper-bracket until it has been properly registered.

In the return of the parts to their initial position the register-bracket will move the gagebar away from the edge of the paper, and at the same time the pawl 91 will be lifted out of engagement with the rack-bar by means of a link 100, which is pivoted at one end, as shown at 101, to the gripper-bracket, the other end of the link having a slot 102, which is engaged by a stud 103 on thedepending arm 104:, forming part of the pawl 91. (See Figs.

5, 6, 7, and 8.) When the pawl 91 is lifted, the extended portion-117 on the arm 116 will engage the finger 115 and move the pendulum out of the path of the sheet, as shown in Fig. 6.

By constructing and arranging the parts as hereinbefore described two very important elements are introduced-first, utilizing the registering edge of the sheet to operate the tripping devices to yielding-1y arrest the inward movement of the gage-bar after it has moved sufiiciently far to engage the registering edge of the sheet and to allow the camplate to make its full stroke and complete its functional operation regardless of where the gage-bar has been stopped; second, the withdrawing and holding of the tripping and gaging devices from contact with the registering edge of the sheet, so that the sheet in its transit to the press or other machine will have its registering edge free from contact with any part of the side-registering mechanism.

With certain kinds of paper much trouble is ofttimes experienced after the sheet has been fed into position to be registered by the gage-bar striking the edge of the sheet with sufficient force to move it away from the gagebar, and therefore allow the gripping-finger to grip the sheet when its registering edge is not in contact with the registering-face of the gage-bar, which will produce imperfect registering. To obviate this undesirable condition, we provide a sheet-retaining finger 120, that will drop on the sheet before the gagebar reaches the registering edge of the sheet and will remain thereon until the grippingfinger operates to grip the sheet, after which it will be raised and remain so until the succeeding sheet is fed into position to be registered. The sheet-retaining finger is mounted on and controlled by a rook-shaft 1'21, journaled in the bracket 25 and the post 119, extending upwardly from the tie-rod 31. This rock-shaft 121 is operatively acted upon by an adjustable stud 122, mounted in the top of one of the posts 52, connected to the reciproeating cam-plate 21. Loosely mounted on the rock-shaft 121 and projecting upwardly in the path of the stud 122 is an arm 125, that is engaged by said stud to rock the shaft 121 and drop the retaining-finger on the sheet when the cam-plate moves in the direction of the arrow, Fig. 9. ting the arm 125 is a member 126,having adjustably mounted thereon a pin 127, adapted to be engaged by atappet 128, carried by the rockshaft 47 to restore the rock-shaft 121 to its initial position, and thereby lift the retainingfinger off the sheet. In Fig. 9 itis clearly shown how the stud 122 strikes the arm 125 and rocks the shaft 121 to drop the retaining-finger on the sheet just previous to the rock-shaft 417 being acted upon to operate the gripping-finger to grip the sheet. 'When the shaft 4:7 is rocked and the tappet 128 engages the pin 127 to lift the retaining-finger off the sheet, the parts Fixed on the rock-shaft 121 and abut will be in the position shown in Fig. 10. As the stud 122, carried by the post 52, returns to its initial position it will strike the arm 125 and move it backward out of its path to permit the stud to ride over the top of the arm, (see Fig. 11,) after which the arm will be forced against a stop-pin 130 by a leaf-spring 131, secured to arm 126 and having its free end engaging the arm 125. The arm 126 is prevented from moving upward during its return operation by a hook 135, secured to the bracket 25 and engaging the top of the arm. The retaining-finger 120 is secured to the rock-shaft 121 by means of a screw 140, that moves freely in a slot 141 in the collar 1 12 of the retaining-finger. The object of this pin-and-slot arrangement is to allow an elastic block 143 in the end of the retainingfinger to engage the sheet as lightly as possible-that is, the screw will move freely in the slot, so that the rock-shaft 121 will not exert any influence on the retainingfinger, but will permit it to freely drop on the sheet. When the shaft 121. is rocked, the screw 1 10 will move to the other end of slot 11 before it acts to raise the retaining-finger from the sheet.

By the construction above described it will be observed that proper contact between the registering-face of the gage-bar and the registering edge of the sheet is always assured, for the reason that the gage-bar moves against the sheet after the retaining-finger has dropped I transversely-movable bar 27, and under the influence of its controlling-spring the said bar will move the register-bracket inwardly toward the registering edge of thesheet.

After the register-bracket 35 has moved in-' wardly a slight distance it will engage and carry with it the gripper-bracket 36, to which is attached the pendulum 110, that is movable into the path of the registering edge of the sheet. of the sheet, it will release the pawl 91 and permit it to engage the resilientlysupported rack-bar 94, which action will arrest further inward movement of the register and gripper brackets, but not before the registering edge of the sheet has been engaged by the gagebar. This position of the brackets will be retained while the cam-plate makes its full stroke that is, until the rock-shaft 47 will have been operated upon to cause the grip- VVhen the pendulum strikes the edge IIO ping-finger to grip the sheet against the gripper-bracket. Upon the return movement of the cam-plate the transversely-movable bar will be operated upon and the registerbracket will move a slight distance independently of the gripper-bracket, removing the gage-bar from contact with the edge of the sheet, the pawl out of engagement with the rack-bar, and remove the pendulum from the path of the sheet. After the gaging and tripping devices have been withdrawn from contact with the sheet the register-bracket will engage the gripper-bracket and move the sheet into registering position. When the sheet has reached registering position, the cam-plate will have completed its return stroke and the rock-shaft 47 will be acted upon to raise the gripping-finger. and release the sheet. The sheet retaining finger is dropped on the sheet as soon as the cam-plate is operated and remains upon the sheet until the gripping-finger grips the sheet, whereupon it is raised and remains in lifted position until'the cam-plate starts its initial movement again.

Having thus described our invention, the followingis what we claim as new therein and desire tosecure by Letters Patent:

1. The combination with a paper-feeding machine, feed-board and sheetconveying means, of an alternately advancing and receding gage, tripping means actuated by the sheet, a yieldingly-supported retarding device engaged by the tripping means to arrest the movement of the gage after it has engaged the registering edge of the sheet, and means for withdrawing the gage and tripping means from engagement With the sheet after the sheet has been registered.

2. The combination with a paper-feeding machine, feed-board and sheet-conveying means, of an alternately advancing and receding gage, means for operating the gage, yieldingly-supported means for arresting the movement of the gage, tripping means actuated by the sheet to engage the yieldingly-supported gage-arresting means and arrest the movement of the gage after it has engaged the registering edge of the sheet.

3. The combination with a paper-feeding machine, feedboard and sheet conveying means, of-an alternately advancing and receding gage, a rack-bar resiliently supported longitudinally,tripping means actuated by the sheet to engage the rack-bar to yieldingly arrest the gage after it has engaged the registering edge of the sheet, sheet-gripping devices, and means for moving the sheet into registering position, and withdrawing the gage and the tripping devices from contact with the sheet during the transit of the sheet.

L; The combination with a paper-feeding machine, feed board and sheet conveying means, of an alternately advancing and receding gage, a horizontallyyielding rack-bar,

tripping means engaging the rack-bar, a pen dulum movable into the path of the sheet and actuated by the sheet to operate the tripping means to engage the rack-bar and yieldingly arrest the movement of the gage after it has engaged the registering edge of the sheet.

5. The combination with a paper-feeding machine, feed board and sheet conveying means, of two advancing and receding sliding members suitably supported and disposed one above'the other, a registering-gage operated by one of said members, a horizontallwyielding rack-bar, tripping means secured to one of said members and actuated by the sheet to engage the rack-bar and yieldingly arrest the gage after'it engages the registering edge of the sheet, and means operatively controlling the sliding members to cause one of said memrack-engaging means to engage the rack-bar and yieldingly arrest the gage after it has engaged the registering edge of the sheet, and means operatively controlling the brackets to cause one of said brackets to advance and recede a short distance before it operates the other bracket.

7 In combination with a paper-feeding machine and its actuating mechanism, means for feeding the sheets into position to be side-registered, a transversely-movable bar, a gage controlled by the transversely-movablebar, means operating to move the gage against the registering edge of the sheet, tripping means actuated by the registering edge of the sheet to arrest further movement of the gage after it engages the sheet, and means for withdrawing and holding the gage and the tripping means free from contact with the registering edge of the sheet.

8. In a side-registering mechanism for paper-feeding machines, the combination of an advancing and receding transversely-movable I means operatively controlled to operate the transversely-movable bar, a gage controlled registering edge of the sheet.

10. In a side-registering mechanism for papeiafeeding machines, the combination of a transversely movable bar, va gage moving therewith, means operatively controlling the transversely-movable bar, means actuated by .the sheet to yieldingly arrest the movement of the gage after it has engaged the registering edge of the sheet.

11. In a side-registering mechanism for paper-feeding machines, the combination of a per-feeding machines, the combination of an' advancing and receding transversely-movable bar, means for intermittently operating the transversely movable bar, gaging means adapted to engage the reg1ster1ng edge of the sheet, means for arresting the gage, and trip' ping means movable into the path of the sheet and actuated by the sheet to operate the sheetarresting means and said gaging means, and sheet-actuated tripping means adapted to be withdrawn from engagement with the sheet after the sheet has been registered.

I 13. In a side-registering mechanism for paper-feeding machines, the combination of reciprocating operating means, sheet-gaging means, means for arresting the sheet-gaging means when the sheet-gaging means engages the registering edge of the sheet, and means actuated by the reciprocating operating means adapted to advancethe gaging means to gagmg position and withdraw the gage from contact with the registering edge of the sheet after the sheet has been gaged.

14:. In aside-registering mechanism for paper-feeding machines, the combination of a transversely movable bar, sheet gaging means, sheet-actuatedmeans for yielding-1y arresting the gaging means when the gage engages the registering edge of the sheet, and means operating with the transversely-movable bar to withdraw the gaging means and sheet-actuated means from contact with the sheet after the sheet has been registered and is ready for transit.

15. In a side-registering mechanism for paper-feeding machines, the combination of a transversely movable bar, sheet gaging means, sheet-actuated means for yieldingly arresting the gaging means when the gage engages the sheet, and means for reciprocating the transversely-movable bar to control the gaging means and the gage-arresting means, as'explained.

16. In a side-registering mechanism for paper-feeding machines, the combination of a movably-supported register-bracket and gripper-bracket, operatively engaging each other and disposed one above the other, with sulficient play between the engaging parts thereof to allow one of said brackets to slightly advance and recede a short distance before engaging the other, a gage on the registerbracket, a pendulum supported on the gripper-bracket and movable into the path of the sheet, a horizontally-yielding rack-bar, tripping means operated by the sheet-actuated pendulum to arrest the gage after it engages the registering edge of the sheet, and means operatively connected with the said brackets to move the parts into operative position.

17. In a side-registering mechanism for paper-feeding machines, the combination of a transverse]y-movable bar, means for intermittently reciprocating said bar, a register and a gripper bracket suitably mounted and disposed one above the other and operatively controlled by the transversely-movable bar, a gage on the register-bracket adapted to engage the sheet for registering purposes, a longitudinally-spring-actuated rack-bar, means supported on the register-brackets adapted to engage the rack-bar, a pendulum supported by the gripper-bracket and movable in the path of the sheet, and actuated by the sheet to operate the rack-engaging means to yieldingly engage the rack and arrest the gage after it engages the registering edge of the sheet, and means, controlled by the return movement of the transversely-movable bar, operating to removethe pendulum and gage from contact with the sheet. v

18. In a side-registering mechanism for paper-feeding machines, the combination of a movable gage, means for operating the gage to move it against the registering edge of the sheet, a pendulum movable in the path of the sheet and adapted to engage the registering edge of the sheet, and means controlled by the action of the pendulum to arrest further movement of the gage after it engages the registering edge of the sheet.

19. In a side-registering mechanism for paper-feeding machines, the combination of a register-bracket and a gripper-bracket disposed one above the other, a transverselymovable bar operating to control the brackets, a gage on the register-bracket adapted to engage the registering edge of the sheet, a pendulum supported by the gripper-bracket and adapted to engage the registering edge of the sheet in advance of the gage, a longitudinally-yielding rack-bar, devices operated by the pendulum to engage the rack-bar and arrest the further movement of the gage after it engages the sheet.

20. In a side-registering mechanism for paper-feeding machines, the combination of a transversely movable bar, reciprocating means operatively controlled to operate the transversely-movable bar, a gage operatively connected to the transversely-movable bar, a resiliently-supported rack-bar capable of a yielding longitudinal movement, means actuated by the sheet to engage the rack-bar and arrest the movement of the gage after it has engaged the sheet.

21. In a side-register for paper-feeding machines, the combination of two brackets disposedone above the other and slidably mounted on guide-rods, the operative relation of the brackets being such that one of the brackets will advance and recede before the other, a transversely movable bar actuating said brackets, and intermittently-reciprocating means operatively controlling the transversely-movable bar, as set forth.

22. In a side-registering mechanism for paper-feeding machines, the combination of an intermittently-reciprocating cam-plate, a suitably-supported rock-shaft, a sheet-retaining finger mounted on the rock-shaft, and means for operating the rock-shaft to lower the retaining-finger to hold the sheet in position to be gaged.

23. In a side-registering mechanism for paper-feeding machines, the combination of a movably-mounted register-bracket, a gage on the bracket, a gripper-bracket movably mounted and adapted to be engaged by the registerbracket, and means forvoperating said brackets so that the register-bracket will advance and recede to and from the sheet in advance of the gripper-bracket, for the purpose explained.

24. In a side-registering mechanism for paper-feeding machines, the combination of an advancing and receding gage, a transverselymovable bar controlling the gage, mechanism for imparting reciprocating motion to the bar, a sheet-gripping finger supported adjacent to the gage, a rock-shaft, a sheet-retaining finger mounted on the rock-shaft, and means for operating the rock-shaft to cause the retaining-finger to engage and hold the sheet until the gage moves into gaging position, and release the sheet when the gripping-finger engages the sheet to move it into registering position.

25. In a side-registering mechanism for paper-feeding mechanism, the combination of two brackets slidably supported adjacent to each other, the operative relation of the brackets being such that one of the brackets will advance and recede before the other, tripping means supported on one of said brackets and movable into the path of the sheet and actuated by thesheet, and means operated by the sheet-actuating tripping means to arrest the movement of the brackets when the sheet-actuated tripping means engages the registering edge of the sheet.

26. In a side-registering mechanism for paper-feeding machines, the combination of two brackets slidably supported adjacent to each other, a sheet-actuated pendulum supported on one of said brackets and movable into the path of the sheet, a rack-bar yieldingly supported longitudinally, and a pawl supported on the other of said brackets adapted to be released by the pendulum to engage the rack when the pendulum engages the registering edge of the sheet.

27. In a side-registering mechanism for paper-feeding machines, the combination of two brackets slidably supported adjacent to each other, the operative relation of the brackets being such that one of said brackets will advance and recede before the other, a pendulum supported on one of said brackets, a rack-bar yieldingly supported longitudinally, a pawl supported on the other of said brackets and controlled by the pendulum, and means connecting the pawl with the pendulum-supporting bracket for allowing the pawl to be operated by the pendulum to engage the rack when the brackets advance and withdrawing the pawl from engagement with the rack when the brackets recede.

28. In a side-registering mechanism for pa- TALBOT C. DEXTER. HENRY HALLSTREAM.

Witnesses:

WM. A. COURTLAND, J. GREEN.

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