US1135811A - Slow-down and sheet-straightening device. - Google Patents

Description

R. E. mes & G. A. MARTIN SLOW DOWN AND SHEET STRAIGHTENING DEVICE.

APPUCATION FILED MAR.25,19I4.

SHEETS-SHEET l.

Patented Apr. 13, 1915.

m w W! w R. E. JONES & G A. MARTiN.

SLOW nowu AND sum smsemwmc azvmz.

I APPLICATION FILED MAR. 25. I914: Y

1 135 81 1 Patented A1312 13, 1915.

i SHEETSSHEBT 2.

R: E. JONES & G. A. MARUN. SLOW DOWN AND SHEET STRAIGHTENING DEWCE.

APPLICATION FILED MAR. 25, I914.

Patented Apr. 13, 1915.

was meas e0 7 24M/ R. E. iES G. A. MARUN.

ET STRAIGHTEMHG DEVICE.

wmamww man am. 25, I914.

SLOW DOW?! AM) SEQ Patented Apr. 13, 1915.

4 SHEETS-SHEET -&.

were are ran: a

nrcnann n. cones AND encasero nannies FOLDER COMPANY, or new "ionic.

EIW'EE, new YORK, nssrenons new sons, A conronnrron SLDW-DOWN AND SHEET-STEAIGETEN'ING QEVZGE.

-' Application filed March as, rare.

1' (121 10.71011 it may concern:

it known that we, and Gnonsn A. Mairrnr, citizens of the iinited States, and both. residing at Pearl River, in the county of Rockland, State ct hined sheet-straightening and slow downdevices.

' 3 to deliver sheets upon a The particular features of the invention are pointed out in erence being had to the accompanyi g drawings which exemplify our invention in a preferred embodiment.

In the drawings, Figure 1 is a side elevation oi a portion of a sheet-feeding machine, embodying our improvements, parts being broken away and parts shown in section; Fig. 2 is a top plan view of the same, parts lieing broken away and parts shown in section; Fig. is a rear end same; Fig. -iis a diagrammatic top plan viewof a feeding machine provided with our improvements; Fig. 5 is a fragmentary side elevation of a modification, parts being broken and parts shown in section.

Referring first to'Fig. i, 1 and 2 designate devices arranged adjacent opposite edges of a feeding machine, their functions being to engage the opposite. edges of a sheet which is being fed forwardly by the tapes 3 across the feed board Supposing, for example, that sheets are being fed to the cylinder 5 of a printing press, the devices 1 and 2 are under the control of sheet-actuated means for regulating the amount of movement of each edge of a sheet relatively to that of the other edge. By this means the sheet is properly registered to be delivered to the grippers of the printing press} The detail construction of each of the devices 1 and 2 will he understood from auinspection of Figs. 1, 2, 3 and 0. Y Referring to Fig. 1, the tapes 3 pass about vthe taperoller 6 shaft adapt the tapes table or plate t The upper surface of the plate or table 8 is adapted in the present embodiment to coon the shaft '7, said being suitably disposed to Specification of Letters Patent.

. operate with the peripheral surface RICHARD E. Jones I the appended claims, ref-.

elevation of the racemes s mis, 1e15, Serial no. 827,179. L

roller 9 which is mounted upon a. spindle 10 carried by the lower end of a lever M11111, said lever arm heing keyed to a rock shait 12. A. cam arm 13' which is also ,l'ieyed to the rock shaft 12 carries a cam roller 14 which runs on a cam 15,

direction indicated by the arrow. When the parts are in the positions shown in Fig.1, the cam roller 1%- travels over the inner run of the cam 15 and permits the roller '9 to run upon the plate or table 8 or the sheet traveling thereover. In order to provide suitable -means for i that, its periphery will travel forwardly with the sheet (which passes thereunder while it is being raised and lowered) a gear 17 is keyed to the spindle 10 and meshes with a rack bar 18, the rear end of said rack car being ,pivotally connected at 19 with theextensipn 20 of a lever arm keyed to aroch shaft 22.

' As shown in Fi s. 1, 2 and 3 the level arm 21 carries a lateriilly projecting pin 23 upon which is journalcd the hub 2% df the extension 20. A pin 25 extends through the outer end of the journal pin '23, being adapted to be inserted into any one of a plurality of radial ntches 26 provided in an abutment .27 to which one end of a spring 28 is secured, said spring 28 being mounted on the pin 23 and having itsother end exerting a pressure on the hub Fig.1. The lower end 29 of the arm 21 (see Fig. 1) carries a stop pin 30 which limits the displacement of the extension 20 toward the left. The purpose of this construction will be evident from the following. description: Power for rocking the shaft 22 is provided by an arm 31, the upper end of which is connected by a link 32 with alever arm 33, which is eyed to a stub shaft 34: journaled in the boss Also keyed to'the stub shaft 3% is a cam arm' 36 which carries a roller 37 upon a the cam shaft 16 and travels therewithin the direction of the arrow. parent from this description cam roller that as the of a,

said cam being lrevecl to a shaft 16 which rotates in the driving the roller 9 so 21 which is,

24 tending torotate the extension 20 toward the left, according to 37 mounts to the outer run'of the":

cam 38,which is keyed to It will be apcam 38, the raclr hau'ldwill travel iforf 1 \vardly and rotate the gear 17 in a clockwise direction, together with the ridller 9.

A support 39 whichdepends from the spindle 10, carries a laterally projecting pin or roller 40 upon which the rack bar 18 slides.

bar 18 and spaced ratchetcbar 41 which roller 44 carried by a pin 45' which projects laterally from a fixed bracket 46. A laterally projecting pin 47 serves to journal the hub 48 of a link 49 from the outer end of which projects laterally a pin 50. Journaled upon'the pin 50 is a combined pendulum and ratchet pawl, the pendulum 51 of which is heavier than the pawl 52, thus serving to normally hold this meinber in the position shown in Fig. 1, in which a stop pin 53 which projects from the lower end of the I link 4:9,"normally rests against the end wall 54 of an arcuate slot 55, formed in the hub 56 of the pawl and pendulum member. A lug 57 which projects laterally from the bracket 46 serves to support the link 49 in its lower osition shown in Fig.4. An ad-' justable' abutment in the'form of a screw-58 serves to limit the upward movement of the 1 ,link 49 in the manner to be hereinafter pointed out, said screw being threaded in the lug 59 carried by bracket In the modification shownin Fig. 5, a plate or table 8 is provided with a slot or opening by means of which the roller 9 is permitted to contact with the perpheral surface of a roller 60 which is journaled beneath the plate 8. In this modification, the peripheral surfaces of the rollers 9 and 60 constitute the relatively movable surfaces which coiiperate to slow down and straighten a sheet in the manner to be pointed out.

Referring to Fig. 1, the tapes 3 deliver a sheet tothe plate or table 8 at comparatively high speed, the roller 9'at that instant being 1 elevated by the cam roller 1e traveling they outer run of the cam 15. The action of the cam 15 is so timed that shortly'after thesheet has come between the roller 9 and the- 1 plate '8, said roller 9 falls upon the sheet. I At the same time the cam 38 has displaced the cam roller 37 in such a way as to impart rotating the gear 17 ripheral speed ofthe roller 9 is preferably slower than that of the sheet. forwardedge-of the sheet reaches the pendulum 51, said pendulum isdisplatfed and the'pawl 52 caused to move into engagement with the ratchet bar Shortly afterward, the forward motion of said ratchet bar, as well as the rack bar 18 is arrestedby driven upwardly against,

thelink 4 :9 being the abutment 58 thus bringing the sheet to :1

av forward drive to the rack bar 18, thusand roller 9. The pe- 7 When the rack bar 18 is arrested, to be absorbed by- 4 degree.

tion between said parts, and means forblockperipheral surface I movement of asheet, an

stop; Immediately after the roller 9 is eleagainst the front gages, is produced by the, tapes 3 which still engage the rear'edge of the sheet in suflicient degree to impart thisadditional movement. f

In order to avoid undue strains and breakage by the employment of the positively driven mechanism herein'above'described, the yieldable connection between the arm 21 and the exten'sion20 enables any thrust which is imparted by the cam 38 after the the spring '28, the abutment 27 -with its notches 26 making it, possible to adjustthe tension of the spring 28 to any desired We claim:

1. In a combinedf slow .dc'wni and sheet straightener for sheet"feedingunachines, a surface over which paper is fed at; relatively 7 high speed,'an instrumentali face adapted to engage over the first said surface, ,ns ing said instrumentality to imparts-move ment to the second mentioned surfaceofless velocity than the velocity of saidsheet, said means including a; lever comprising relatively movable parts and a yieldable connecing the movement of said operating means.

2. In a combined slow down and sheet straightener for sheet feeding machines, a surface over which paper is fed at relatively high speed, a slow down roller havingits moving in the same direction as the paper is fed over the first said surface, a-rack bar geared to said slow down roller, means for reciprocating said rack bar, and sheet actuated means for interrupting the reciprocating movements of said rack bar.

3. In a combined slow down andsheet straightening mechanism for sheet feeding machines, -,a surface over which the sheets are fedja roller suitably mounted-to co- 5 operate withsaid surface in retarding the oscillatory arm, a rack bar geared to said roller,sa1d rack 115 being also pivotally connected to said oscillatory arm, and sheet actuated means for interrupting the reciprocatory movements of said rackbar. 4:. In,- a, combined slow down and sheet straightening mechanism for sheet feeding machines, a surface over which the sheets are fed, avroll'er suitably mounted to cooperate with said surface in retarding the movemntof sheet, an oscillatory arm, a 1 rack bargeared to said roller. said rack bar being also pivotally connected to said oscillatory arm, and sheet actuated means for interrupting the reciprocatory movements of said rack bar, said means including a 9- iciuntezl penrlulnm, a pawl moved and a rhclr bar pivotally connected oscillatory arm and adapted to be engaged by said pawl.

T a combined slow down and sheetstraightening mechanism for sheet feeding machines, a surface over which the sheets are fed. a "oller suitably mounted to cooperate with said surface in retarding the movement oi a sheet, an oscillatory arm, a rackbnr geared to said roller, ssid rack bar being also pivotally connected to said oscillatory arimnno sheet actuated means for interrupting the reciprocatory movements of said reel: bar, said oscillatory arm comprising relatively movable parts and yieldnble means for normally retaining said parts in fixed relation to each other.

6. In a combined slow down and sheet straightening mechanism for sheet feeding machines, a surface over which the sheets are fed, a roller suitably mounted to cooperate with said surface in retarding the inc-vinenlof a sheet. an oscillatory arm, a rack bar geared to said roller, said rack bar being also pivotally connected to said 0scil later arm, and sheet actuated means for interrupting the reciprocatory movements of said rack bar, said oscillatory arm comprising relatively movable parts connected by a knuckle joint, and a spring for holding said parts in extended posit-ion.

7. in a combined slow. down and sheet straightening mechanism for sheet feeding machines, a surface over which the sheets.

are led, a roller suitably mounted to coopeatc with said surface in'retarding'the movement of a sheet. an oscillatory arm, a rack bar geared to said roller, said rack bar being also pivotally connected to said oscillatory arm, and sheet actuated means for interrupting ihe reciprocatory movements of said rack her, said oscillatory arm comprisicly movable parts connected by a iulieqoini, aspring for holding said extended position, and means for no tension of said spring. combined slow down and sheet for sheet feeding machines, a n e over whi paper fed at relatively 1 speed, an met: 2 entulity adapted to reel l'rnveling over said surface, for moving said instrumentnlity, said ion a lever comprising pivot- :illy ccmzwied parts-end a vieldnble con- \lPf'l Ull betw en Hl fil parts. and sheet operated means for blocking the movement of said instrumentalit 5. lo a combined slow down and sheet sl'roi litencr for paper feeding machines, a surf; high speed. a paper engaging roller having u r latively slow peripheral specrL-said mourned to be moved roller ocinn' shimmy ispcr engaging position,

into and om; of i over which. paper is fed relatively toting said roller including a postivelv driven lever which is substantially unyielding for transmitting power to said roller when uninterrupted in its movement, said lever being provided with means adapting it to yield when the movement of said roller is blocked.

10. In a combined slow down and sheet straightener for paper feeding machines, a surface over which paper is fed at relatively high speed, a paper engaging roller having a relatively slow peripheral speed, said roller being suitably mounted to be moved into and out of paper engaging position, paper actuated means for blocking the movement of saidroller, andgneans for, ro rating said roller including a positively driven lever which is substantially unyielding for transmitting power to said roller when uninterrupted in its movement, said lever being provided with means adapting it to yield when the movement of said roller is'blocked, said lever comprising relatively movable parts and a yield-able connection therebetween.

11. In a combined slow down and sheet straightener for paper feeding machines, a surface over which paper is fed at relatively high speed, a paper engaging roller having a relatively slow peripheral speed, said roller being suitably mounted to be moved into and out of paper engaging position, paper actuated means for blocking the movement of said roller, and means for rototing said roller including a positively driven lever which is substantially unyieldand a yieldable connection therebetween,

said connection being yieldable in one direction only.

12. In a combined slow down and a. sheet straightening;mechanism for sheet feeding machines, a. surface over which the sheets are fed, a roller suitably mounted to co operate with said surface in retarding the movement of a sheet, means for imparting: a rotary movement to said roller, means for moving said roller into and out of contact with said sheet, and sheet actuated means for terminating the movement of said movement imparting means. i

13. In 2r combined slow down and sheet straightening mechanism for sheet feeding machines, a surface over which the sheets are fed, a roller suitably mounted to cooperate with said surface in retarding the movement of a sheet, means for imparting a rotary movement to said roller, means for moving said roller into and out of contact llC being adapted to terminate the rotary movement of said roller prior to the removal of said roller from the sheet.

1 In a she'et feedingv machine, a surface over which sheets, are fed, a roller adapted to cooperate with said surface, means for moving said roller into and out of contact with a sheet, a reciprocable rack geared to said roller, a ratchet partaking \iuetm 18. In a sheet feeding machine, a surface over which sheets are fed,jan oscillatory lever having an arm movable toward and away from said surface, a roller journaled in said arm, a gear rotatable with said roller, a support dependiigg from said arm, a rack in engagement wit said gear, said rack being slidably mounted in said depending su'pport, and .sheet actuated means for interrupting the movement ofsaid rack.

of the movement of said rack, and sheet 19. In a, sheet feeding machine, a power actuated; pendulum provided with a .pawl for engaging said ratchet, said reciprocable rack being provided with driving means embodying a member with relatively movable parts and yieldable means fornormally retaining said parts in fixed positions relative to each other, said yieldable means being adapted to yield when the ratchet is engaged by the pawl. p

15. In a sheet feeding machine, a surface over which sheets are fed, a roller adapted to coiiperate with said surface in retarding the movement of a sheet, an oscillatory arm which carries said roller into and out of contact with said sheet, a rack bar geared to said roller to rotate the same, means for reciprocating said rack bar, a ratchet bar secured'to said rack bar, and a sheet actu-- ated pendulum having a pawl movable into engagement with said ratchet bar.

16. In a sheet feedin machine, a surface v over which sheets are ed, a roller adapted to coiiperate with said surface in retarding the movement of a sheet, an oscillatory arm which carries said roller into and'out of contact with said sheet, a rack bar geared to said roller to rotate the same, means for reciproc'ating said rack bar, a ratchet bar secured tosaid rack bar, and a sheet actuated pendulum having a pawl movable into engagement ,with said ratchet bar, said reciprocating means comprising a rock shaft, an arm keyed thereto, an extension pivotally "connected to said arm, and yieldable means for retainingsaid arm and extension in normally fixed'positions' relatively to each other.

'17. In a sheet feeding machine, a surface over which sheetsare fed, a roller adapted m-a'lly fixed positions relatively-to each other, said yieldable means being provided with a to cofiperate with said surface in retarding the movement of a sheet, an oscillatory arm which carries said roller into and out of c0ntact with said sheet, a rack bar geared to said roller to rotate the same, means for reciprocating said rack bar, a ratchet'bar secured. to said rack bar, and a sheet actuated p'endulum having a pawl movable intoengagement with said ratchet bar, said reciprocating means comprising a rock' shaft, an arm keyed thereto, an extension pivotally cons nected to said arm, and yieldable means for retaining said, arm and extension in nordevice for adjusting the tension thereof.

driven arm, a reciprocatory rack bar journaled thereon adjacent one end, an oscillatory lever, a roller journaled thereon, a I

geared-connection between said roller and rack bar, means for raising. and lowering said rack bar to'malntam said connectlonduring the rise and fall of said ro1lr,-and' sheet actuated means for arresting therecip rocatory movement of said rack bar, said sheet actuated means comprising a pendu-j him having ,a pawl movable therewith and a ratchet bar adapted to be engagedby said pawl, said ratchet bar being connected to said rack bar.

21. In a sheetfeeding machine, a power driven arm, a reciprocatory rack bar our- 1 naled thereon ad acent-one end, an oscillatory lever, a roller journaled thereon, "a I geared connection between said roller and rack bar, means for raising and lowering said rack bar to maintain said connection during the rise and fall of said roller, and

sheet actuated means'for arresting the reciprocatory movement of said rack bar, said sheet actuated means comprising a pendu; lum having a awl movable therewith and a ratchet bar a apted to be engaged by said pawl, said ratchet bar. being connected to said rack bar, said pendulum being pivoted upon "an axis axis. I g

j 22. In apaper bination with a surface over which paper is" to be fed, of an oscillatory lever arm, a paper,

' 1. which swings abouta second feeding machine, the com-' engaging roller journa'led in said arm,ia gear 1 rigid with said roller, a rack meshing with f said gear, another oscillatory leve'r arm connectedtossaid, rack, a ratchet bar also connected to'the last mentioned lever arm, and

a sheet. actuated pawl forblocking the movement of said ratchet bar.

23. In a paper feeding machine,-t I com- 'bination witha surface over which paper is to be fed, of a lever pivotally mounted to.

rise and fall relatively to-4 said surface, a paper engaging roller jonrnaledin said lever, a recipl'ocatory bar suitably connected to said roller to rotate it on its axis, another reeipiocatory bar partaking of the movement of the first mentioned bar, and sheet actuated means for positively locking the reciprocatory mevements of said bars.

2%. In a combined slow-down and Sheetstraightening machine, a sheet-feeding iI1-' strumentahty provided with a sheet-engaging surface which partakes of the forward movement of a sheet, a ratchet bar which also partakes of the forward movement of said sheet, a link pivoted at one end 011 a 15 fixed axis, and a sheet actuated pawlpivotally mounted on the other end of said link, said pawl being movable into engagement with said ratchet bar to arrest the movement of said sheet-engaging surface of the sheet- 20 feeding instrumentality.

RICHARD E. JONES. GEORGE A. MARTIN. WVitnesses:

R. T.'BUNOURS, EOBT. H. ARMSTRONG.

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