US1116587A - Feeder for printing-presses. - Google Patents

Description

H., E. HARVBAUGH; PBEDBE- Fu PMNTING PRESSES. YABPLIOAIION FILED APR. 15, 1912.

Patented NOV. 10; 1914.

E. Ei HARBAUGH. I FEEDER POB. PRINTING PRESSES.

, APPLIUATIONFILEDAPR.5,1912. V

latented N0v..10,1914.

ya" smmsfsmm 2.]

H. E. HARBAUGH, EEEDEE EOEEEINTINE' PRESSES.

APPLICATION FILED APR. 15, 1912. y

- y PaEntEd Nov. M), 1911i.

EMEEEE y 3 SHEETS-SHEET muon,

` and passed 'to the press.

' edge ofthe-stack ofshe the other edge, lthe .two

sure which would cause is a section on line bb'Fi employedlto carry a carros.'

Hownnn n. Bananen, or' Knudsen.. wisconsin. l

FEEDER F015?.V PRINTINGIPRESSES.

Specification of Letters Iletent.l Patented Nov, appueanon mea sp1-n I5, 191e. sexismo. senese.

` section on line e Fig, Fig. 9 is a section on line'- djd Fig. 5.

-My improvements are applied' tofa printing presswhich is providedwith a' magazine holding a stack of sheets ofl paper to he printed', andA in the dra shown. such4 portions .of the press as are necessary to an understanding off vmy improveniente.`

The mainframe comprises the s ide bars l To a-ZZwLo/mg it may concern. Be it known that I, HOWARD E. HAR- a.. citizen ofthe United States, resid' 'ing at Kenosha, in the county of Kenosha and State ot' Wisconsin, have invented certain new and useful Improvements in Feeders for Printing-Presses, oi Which' the following is a-speclication. c

Une of the objects of this invention is to Aconstruct a'jfeed'er for printing'presses in whichV the two sets ofrollers for feeding the paper to the main feeding' roller of the press are independently vertioallyself adjustable in order that each set of rollers may accommodate itsellE tothe unevenness ofthe thickness of'l the stackofsheets being fed to thepress, vA further object of' this invention is to provide -twosets offrollers Which are inclependentlyfadjustable for holding back the topsheets of 'the stack in order that the top sheet vmay be 4drawn free of the other sheets olls 4 .are lothe endless belts 3.' Presser r contact therecated over the b'elts' and-in with. Af shaft 5 isV supported by the side bars and it supports two crank heads 6. This shaft is rotatedv in any suitable manner. To the side bars lA bars 7, one end ofI each is connected to 'a link 8, andv their other ends are connected With. the crank heads 6. The other ends of theserocking bars are pivotally connected tothe links 9. The side bars ofthe main frame support a vertically movable magazine 10 *which is automatically raised in any suitable manner. I lay no claim to the magazine or means for operating it, only in the operation of' my improvements some construction of automatically operated inag- Va'zine 1s necessary. i

To the side bars 1 of the main frame are connected the side bars ll4 of the feeder frame, which are conne These side bars 11 are each provided with a vertical edge 13' which is formed with a guide-Way' lll in which are locat connected to vloars 16. From the bars 16depend bearings 17 Whichareconnected by a rod 18 which extends through openings 19 infthe edges 13 and their projecting ends are connected 'to the links 9. A s the crank heads 6 rotate, the bars 16 will be reciprocated iny guide-Ways A14; through the rocking-hars 7 carrying therod 18 with them. To the end har 12 of the supplemental frame is secured a guide-way 20 Within which is located a guide 21, Which has formed in one side, a

In `feeders forprintingv presses, various means have been employed to separate the top sheet -from the stack and'carryitto the press, but so far' as' known-to me the means sheet from the stack to tlie press comprises two sets ofroll'ers located transverseto the movement of Ithe paper and connectedl so as to move vertically in unison. 'In such'a construction 4should one ets be higherthan sets of rollers would contactwith the paper' with varying presthe paper to move diagonally' sidewise, With the result that it Would'not be presented squarely to the feed. roll 'of' the press. My improvements aim to overcome4 this difliculty.

ln the accompanying drawings, is a side elevationy of the eedend 'of a printing pressto` which l'hav'eapplied'my improveniente* Fig. 2 is a-plan view of Fig. 1. 'Fig'. 3l is a-section on line aaFig; 2. F ig. 4 g.' 1. llig.` 5 is a Figuren l sectionon line c c Fig. 2Q Fig.' 6 is a perkey-Way havingthe shoulders 80 and 81. A spective View of one of the sets ofrollers for hey 82 lixedly secured in the guide- Way 20, holding back the sheet-s ofgpaper.A Fig. 7 is limits the forwardjand back-Ward movement a perspective view of fon rollers for feeding a shee feed rolls of a printing e of the sets of' t olf' paper'to'the press.- kkFig.l 8"'is a of! the guide 21.

onal engagement of the- Wings l have only cted by end bars 12.`

ed rollers 15 Which support a roller 2 which is rotated-.by

are pivoted two rocking.

springpressed linger 83"*which contacts said i guide, the frictiona'l engagement being just suicient to grip said guide and yreciprocate it, and allow said guide to slide freely thereunder when the shoulders 80 and 8.1 contact the key 82. The underside of the guide is provided with a cam surface 22. The rod 18 has two brackets 23 connected to it by set screws 24 and each bracket has an overhanging arm 25 with an offset perforated end 26. These brackets 23 have a perforated depending projection 27 to which is pivoted a yoke 28 by the pin 29. To the yoke 28 is pivoted a screw 30 which extends through the perfo- Vration of the offset 26 of the overhanging arm 25. A nut 31 is turned on the screw 30, and a spring 32 surrounds the screw between the-nut and the offset end 26. To the yoke 28 is swiveled a T bar l33 carrying two rollers 34. Between therollers 34 and connected therewith is located a ratchet wheel 35, with which a flat spring 36 engages. The pin 29 supports an arm 37 which has a finger 38 which contacts with the underface of 'I the yoke 28, Fig. 8. The two arms 37 are connected by a rod 39, and this rod supports a roller 40, Fig. 3.

A bar 41 has its ends formed `with cavities which receive the upper ends of the screws 30. A spring 42 has one end connected to the plate 43 movable with the rod 18, and-the other end ofthis spring is connected to a screw 68 passing through the bar 41 and receiving a thumb nut 69 on its projecting end. l

' The side bars 13 are formed with guideways 44 which support guides 45 from which depend a bearing 46 for a screw 4,7. TheseA screws 47are connected by a rod 48 and miter gears 49. By turning one of the screws 47 the other screw will be rotated which will move the guides back and forth carrying the rod 50 withv them. To the rod 50 are connected two sheet separating devices each comprising an arm 51 connecte to the rod by the set screw 52. arm 51 depends two ears 53 between which is pivoted a bracket having depending perforated ears 54, and an uprisingarm 55 A yoke 56 has a shank 57 located inv the ears 54, and is adjustable longitudinally by the collar 58. To-the yoke 56 is pivoted a frame 59 on the pin 60, and a central roller 61 is pivoted to this frame. Two rollers 62 and 63 are connected to the forward section of the frame 59 on the two rods 64 and 65 respectively. A brake 66 is supported bythe yoke 56 and contacts with the rods 64 and 65, and by means of the screw and adjusting nut 67, the friction applied to the rods can be varied.

To the uprising arm 55 is pivoted a screwthreaded rod which passes through the upper end of the arm 51. A nut 71 is located on the screw 70 and a spring 72 is io- `From the' cated between the nut 71 andthe arm 51. A bar 7 3 is formed with a recess in each end which receives the rod 70. An arm 74 is se-V cured to the rod 50 and a spring 7 5 has one end connected to this arm. The other end,

of the spring 7 5 is connected to a screw 76 which extends through the bar 73 and rel ceives a nut 7 7 on its projecting end.

In use, the rollers 61,' 62 and 63 Vare adjusted bodily with respect to the paper 78 supported bythe magazine 10 so as to hold back the sheets of paper and permit the top sheet to be drawnA forward b the feeding rollers located in advance o the holding rollers. ported by the rod 18 will be moved back and forth'as'therod is moved b its con nection with the crank heads 6. hese rollers rest in contact with the paper during itsmovement toward the press and the springs 36 engage the ratchet wheels .35 will hold the wheels from rotating so that the rollers act as fingers and carry'a sheet of paper for- The4 feeding rollers 34 being sup-- ,ward to be engaged between the rollers 2 and 4 which will carry the sheet to the cylinder of the press. It will be noticed that should. the`transverse contour of the paper drop sligthly to one side, that Vwith a roller 34 kon the high side `of such slope of the paper, the other roller 34, through the brackets 33 ,and 38 would be allowed to move vertically downward independently ofthe former roller to follow said depression inA the contour of the paper. Just before 'the rollers finish their forward movement-s, the roller 40 will contact with the cam face 22 which will depress the roller, and'the'rod 39 supporting it. The arms 27 will be moved downward which will bring the lug 38 against the underface of the yoke 28 thereby raising the rollers free of the paper. At the end of the forward movement. of the bar 18, the shoulder '80 will be in contact with the key 82, and in the rear` movement of the bar 18 the rollers will be carried elevated free of the paper until the shoulder 81 contacts the key 82, when the guide 20 will stop, and the roller 40 will leave the cam surface 22, just as the bar 18 reaches the end of its movement. I do not ers with the bar 41, and a center spring muguet connection between-this bar and a fixed part the-force of-tliis springvvvill be equalized between the tWo sets of rollers suilicient to carry the top sheet ot'- paperforward, but additional spring force can be given to Neither' of the sets of rollers independently the saine as the bar 41 and spring 42 above' described. By this arrangement of feeder,4

, The rollers 62 and 63 are The frame'supporting the holding rollers 61, 62 andl 63 has an oscillatory movement so that they can conform to the lateral contourvof the stack of papers similar to the oscillatory movement of the feeding rollers. By the spring 72 exerting a down- Ward force on the arm 55, the rollers 6-1, 62 and 63'Will be held in contact with the paper,- and the pressurecan be varied independently by the adjusting nut 71. The

action of the bar 73 and the spring 75 is the top sheet is fed squarely to the rollers 2 and 4 and by them carried to the cylinder. elastic so thatgtliey will cling more closely to the paper and prevent more than one sheet being fed at a time.

guide for .the

. As the paper varies iii thickness and a :feed for the magazine cannot operate to hold the upper surfacefof the stack of pa- 1 per at a-uniform height, it is necessary that the pressure` of the holding rollers on the' papershould be asnearly uniform as possible. l have therefore arranged the arm 55 and the rod 7G withrelation to the pivot of the bracket supporting 'the arm, and the rod, so that, as the spring force increases the leverage will be de-- creased.v

` l claim as my invention:

1.A sheet feeding mechanism for printing presses comprising a reciprocating feedfrarne, tivo brackets ixedly secured thereto, roller-supporting brackets pivoted to each of said fixed brackets, rollers carried by the roller-supporting brackets, an equalizing. arm having a connection With each of said roller-supporting brackets and'adapted to yieldably depress the roller-supporting brackets, and means connecting and adapted to raise and lovver said i roller-supporting brackets.

.2. A sheet feeding mechanism for printing presses comprising a i 4feed-fname, tivo brackets iixedly' secured reciprocating thereto and each having an outstanding arm, roller-supporting brackets pivoted to ln astack of paper, the l ing-arm having -otal' brackets. l

6. A sheet feeding mechanism for print each of 'said-fixed brackets, rollers carried lby the rollerlorackets,` an equalizing-arm, a

connection passing through each of said outstanding arms vand connecting each ing-arm,xyieldable means mounted on each of said connections between theoutstandin arm and the roller-supporting bracket and-adapted to yieldably depress said rollersupporting brackets independently, and means for yieldablydepressing said equaliz- A sheet feedingmechanisrn for printling piesses comprising a supporting-frame,

two brackets carried therebyand capable of verticalv movement, a bracket having a verlticaltransverse 'movement and secured to each of said vertically movable brackets, al roller-supporting frame pivotally attached to each of said transversely movable brackets, Vand rollers supported by said roller- -supporting frames at the front and rear of i their pivotal support.' 4 y A 4. A sheet @feeding mechanism for printing presses comprising a supporting-frame,

a bracket carried thereby andcapable of a` vertical movement, a bracket'having a' verroller-supporting bracket with the equaliztical transverse pivotal movement and `secured toisaid vertically 'movable bracket, a

roller-supporting frame pivotally attached I to said transversely pivotal bracket, and. rollers carried by said roller-supporting frame at the front and rear of their pivotal'l support.l

5. A sheet feeding mechanism for print-v ing presses comprising a supportingframe,j

tivo brackets pivotally secured to said frame and capable of independent vertical movement, avertical transverselyl pivotal bracket carried by each of said vertically pivotal-P brackets, a 'ramepivotally secured to each of said transversely pivotal brackets, rollers lcarried by said frames, and an equalizconnection with 'and adapted: to yieldably depress said verticallyipivbrackets pivotframe pivotally secured to each of said transversely, pivotalbrackets, rollers 'carried by said pivotal frames, and an equalizing-arm having connection with and adapted toyieldably depress said vertically 'i pivotal brackets. v 7. A sheet feeding mechanism for printing presses comprising a supporting-frame, tivo brackets pivotally secured to said frame k 4and capable d independent vertical move-l ment, a vertical transversely pivotal bracket carried by each of said vertically pivotal brackets, a frame pivotally secured to each of said transversely pivotal brackets, an equalizing-arm having connection with and adapted to yieldably depress said vertically pivotal brackets, and means carried by said pivotal frames for contacting the paper.

8. A sheet feeding mechanism vfor print- -ing presses comprising a supporting-frame capable of adjustment as to the length of the sheets being fed, two brackets pivotally secured to said frame and capable of independent vertical movement, a vertical transversely pivotal bracket carried by each of said vertically pivotal brackets, a frame pivotally secured to each of said transversely pivotal brackets, rollers carried by said pivotal frames, an eoualizing-arm having a connection with and adapted to yieldably depress said vertically pivotal brackets, and adjustable means carried by the equalizing arm and adapted to vary the pressure of said arm.

9. A sheet feeding mechanism for printing presses comprising a supporting-frame capable of adjustment as to the length of the sheets being fed, two brackets pivotally secu-red to said frame and capable of independent vertical movement, a vertical transversely pivotal bracket carried byl each of said vertically pivotal brackets, a frame pivotally secured to each of said transversely pivotal brackets, rollers carried by said pivotal frames, an equalizing-arin, a connection between each -vertically pivotal bracket and the equaliZing-arm, yieldable means mounted on said connections and adapted to independently depress said vertically pivotal brackets, and means for yieldably depressing the equalizing-arn'i.

10. A sheet feeding mechanism for printing presses comprising a supporting-frame capable of adjustment asto the length of the sheets being fed, two brackets pivotally secured to said frame and capable of independent vertical movement, a vertical transversely .pivotal bracket carried by each of said vertically pivotal brackets, a frame pivotally -secured to each of said transversely pivotal brackets, rollers carried by said pivotal frames, an equalizing-arm, a connection between each vertically pivotal bracket and the equalizing-arm. yieldable means mounted on said connections and adapted to independently depress said vertically pivotal brackets, adjustable means on said connec-I tions and adapted to vary the pressure of said yieldable means, and means for yieldably depressing said equalizmg-arm.

11. A sheet feeding mechanism for print` ing presses comprising a supporting-frame capable of adjustment as to the length of the sheets being fed, two brackets secured to lcally movable brackets,

vparallel Limes? said frame and capable of independent vertical movement, a transversely pivotal bracket carried by each of said vertically movable brackets, a frame pivotally secured to each of said transversely pivotal brackets, an eqnalizing-arm having connection with and adapted to yielda-bly depress said vertiand means carried by said pivotal frames for contacting the aper.

12. A sheet feeding mechanism for rinting presses comprising a supportingrames, two vertically movable brackets attached thereto, a transversely pivotal bracket carried by each of said vertically movable brackets and capable of longitudinal adjustment, a frame pivotally secured to each of said transversely pivotal brackets, rollers carried by said pivotal frames, and an equalizing-arm having connection with and adapted to yieldably depress said vertically movable brackets.

` 1 3. A sheet feeding mechanism for rinting presses comprising a supporting'- rame, two vertically movable brackets attached thereto, a transversely pivotal bracket carried by each of said vertically movable brackets and capable of longitudinal adjustment, a frame pivotally secured to each of said transversely pivotal brackets, rollers carried by said pivotal frames, an equalizing-arm, a connection between each vertically movable bracket and the equalizingarm, yieldable means mounted on said connections and adapted -to independently depress said vertically movable brackets, and means for yieldably depressing said equalizing-arm.

14. A ing presses colnprismg a supportingrame, a vertically pivotal bracket carried thereby, paper contacting means carried by said bracket, an arm rigidly carried by said bracket, and yieldable means having a connection with said arm and adapted to decrease its tension as the downward leverage ing presses comprising a supporting-frame,

a vertically pivotal bracket carried thereby, paper contacting means carried by 'said bracket, an arm rigidly Vcarried by said bracket', adjacent the pivotal Sapport thereof and extending above said pivotal point, and means having a connection with the free end of said arm` and adapted to yieldably depress the arm.

.- 16. A sheet feeding mechanism for printlng presses comprising a supporting-frame, two brackets carried thereby and capable of a vertical movement, a roller-support pivotally carried on a horizontally disposed axis with the direction of feed of the sheets by each of said vertically movable sheet feeding mechanism for rint arrasar brackets and movable vertically from said axis independent of the movement of said brackets, rollers carried by the support spaced apart transverse to the direction of feed of the sheets at each side of the pivotal point of said support, and means for yieldingly depressing said rollers. 17. 'A 'sheet feeding mechanism for printing presses comprising a reciprocable frame,

vtwo roller-supports carried therebypivotally on horizontally disposedaxes parallel with thief-direction of feed of sheets and calow the vertical contour of ing fed7 and meansforyieldingly depressdirection and feo the sheets,

` pendent vertical-movement through the' cofrrlbination of tw`o pendent vertical;

pablo o`f. y-independent vertical movement fromf said axes, each roller-support carrying two rollers 4.spaced apart on an axisoi' said frame,

transverse to the movement said roller axes being movable independent of the roller supports to approximately folthe sheets being the rollers.

'18.13. sheet feeding ,mechanismcomprisa feed bracket carsupport carried by thebracket direction of feed of apart transverse tothe capableof indeand each roller vn iovem'ent of said roller-support', and means for depressin 'the rollers.`

19.111- a s eet l'feedingl mechanism', the

'fr-ames capable of indemovements,- a vroller supportedby each frame, and av spring actuated equalizing bar supported by the frames and movable vertically in l 'independent vertical movement 'of said frames. i

5- printing' presses,l i5

" the therewith, capable 20. ln va' sheet? feeding 4mechanism for the combination of sheetfeedingf meanS`,'

nnderlying-sheet'as the topmost sheet is being lvvithdravvn and serving by frictional- Contact Lof its periphery with said- 'underlying sheet to hold 'said sheet and separate the vsame from the sheet. being fed and means forfrictionally 'retarding lthe rotation of 'v f* seas to form connected pairs, these connections being 'vertically movable 'in' conform-V .ity with l the. Linde' rollensnpportsan "means, for yieldingly said roller.

ame, two feed roller-supports having-connection jo f independent. .vertical movement and' `spaced apart transverseto the Vroller-supports', an

mg a connection -withgeach-"of said rollerto th'e direction conformity with the sheet hold-back means in cluding a. .stationarilyy mounted rotatable' v roller. having aM yieldabletperiphery, seid 'rollen being positioned to engage with'an "transversely to the paper and each roller-support. capable of proximately equal depression :on the, 'paper isl obtained;

direction of feed oflthe sheets,rollersffo:4

@dell sheet feeding ,mechanismbomprisvequalizinggsbar-hav'- l ine a sinners-es: 'trema'. e toller-.nippone carried thereby ity with saidindepen'dent vertical movement` of either of said roller-supports, and means for yieldingly depressing the eqnalizing-bar.

122A sheet feeding' mechanism comprising a supporting frame, two roller-supports having connection therewith and located afljacent a common end of sheets beingfed, capable of independent vertical movement and spaced aparttransv'erse to the direction or feed of the sheets, a roller'for each rollersupport, an equalizing-bar supported and movable in conformity with the independent vertical movement of either of said rollers'upports by and having a movable connection with each of said roller supports, and means for'yieldingly depressing the equalizing-bar.

23. A sheet feeding' mechanism comprising a supporting frame, tWoroller-supports having connection therewith, capable of verticalmoveme'nt and spacedapa-rt transverse of feed of the sheets,' a roller for each roller-support', an equalizing-bar having a movable connection with each of the roller-supports and movable vertically,7 through said vertical movement of said roller-supports, and means having connection with the equalizing-bar at a point thereon intermediate said spaced roller-'supports fogieldingly depressing the eqnalizing-bar. A -sheet feeding mechanism comprising a supporting frame, paper contacting A means having connection therewith and located at a common end of sheets being fed, spaced apart .transverse to the Adirection of feed of the paper and capable of independy'ent vertica1.movement, an equalizing-bar disposed between'` said paper. contacting means having connection therewith and capablevof vertical movement inv conformity with said independent movement ofthe paperconta'cting means, and means for yieldin edyI depressing 'the' eqnalizing-bar ata point approximately centrally between said paper contacting means. V25. A, sheet feeding' mechanism compris# ing a support-h ng"frame,4 a plurality ot' mon endof sheets being fed, spacedjapart independent vertical movement, a roller for each .roller-support, a' movable "connection between Seach two. adjacent roller-supportsendent movement of depressing-esidconnections whereby an'japi of each .roller p lnrality of spacedtransf roller-supportscarried thereby, at Va com 7 direction; of feed of the 6 o n nudes? verse to the direction of feed of the sheets yieldable means to vary the independent deand each rollersupport capab e of independent vertical movement, a roller for each roller-support, vertically movable equaliz- 5 ing means having connection with each roller-support for yieldingly depressing the rollei'fsupports at approximately an equa degree of pressure, means carried by each roller-support for yieldin'gly depressing its 10 roller, and an adjustment for each of said pression of the roller carried lby each rollersupport. Y

In testimony whereof I have hereunto set my hand in presence of two subscribing 15 witnesses. I l

, HOWARD E. HARBAUGH. \Vitnesses: n

LOUIS HA-NSMANN, A. O. BEHEL.

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