US909841A - Paper-folding machine. - Google Patents

Description

J. H. ADAMS. PAPER FOLDING MACHINE4 APPLICATION FILED SBPT.28,1907. 4 909,841, Patented Jan. 12, 1909.

3 SHEETS-SHEET 1.

. xiii/T75 WWW/M J. H. ADAMS. PAPER POLDIN G MACHINE.

I APPLICATION FILED SIEPI. 28, 1907. 909,841

Patented J an. 12, 1909.

3 SHEETS-SHEET 2.

J. H. ADAMS. PAPER FOLDING MACHINE.

APPLICATION FILED SEPT.28,1907. 909,841. Patented Jan. 12,1909.

3 SHEETS-SHEET 3.

narran sfrAzrjEs rarnnfr orribili JOHN ll. Alm-M71', Ol" MlNNlAPULlS, MINNESOTA, AbSlGNOlt, BY lvlllSNll ASS,i`tll\li\l.li\"l`S, TO

ADAMS LF'lll FOLDlNG MACHINE COMPANY, A CORPORATION Ol'w MINNESOTA.

PAPER-FOLDIN G MACHINE Specification of Iietters Patent.

Patented Jan. 12, 1909i.

Application filed September 28, 1907. Serial No. 395,022.

To all 'ux/Ioniy it muy concern:

lie it known that l, JOHN il. ADAMS, of `Minneapolis, llennepin county, Minnesota, have invented certain new and useful lmprovenienls in lapeilfolding Machines, of which the .following` is aspecilication.'

'the invention relates to machines for folding paper such as letters, circulars and similar matter, and the object of the invention is lo improve the folding mechanism shown and described in Letters latent of the United States issued to me November th,

190e, ne. 036,235.

'lhe invention consists gene, `ally in variousl constructions and combinations, all as horeinat'ter descril'nal and particularly pointed out in the claims.

ln the accompanying drawings, forming part o'l' ilus specilication, Figure 1 is a side `elevation of a paper folding machine eniloodying my invention. Fig. 2 isa front elevation of the same. lrig. 3 is a side elevation showing the opposite side of the machine from the illustration in F ig. 1. Fig. -l-'is a vertical sectional. view illustrating the folding mechanism in detail. Fig. is a detail .sectionall view showing the manner of swinging the-'hinged tongue plate away from the. pressure rolls and folding wheels, the folding devices being omitted, to illustrate more clearly the position and arrangement ol the other parts. Fig. G is a detail sectional view illustrating the operation of the 'folding wheels.

ln the drawing, 2 represents the bedor feed table of thev machine supported on the forward and rear legs B-and 4. 5 represents a portion of a sheet feeding mechanism mounted on the' table. 2 and forming the subject mailer of a companion application for l". S. Letters Patent, tiled on July 8,1907, Serial No. 392,707, and which therefore needs no detailed description or illustration herein. Y'

(i is a feed ruil driven from a gear 7 hav ing` a belt connection S with a large driving wheel il mounted on a. sha ft 10 on which is an operating crank 1l., A feed roll 'l2 is mounted .in standards 13 beneath a feed opening lll in the said table anda feed roll 15 is arranged above the roll 12 and is carried by arms l() that are pivot ed on the trible 2 and are provided with springs IT, the tension of which tends lo hold. the roll l5 in yielding engagement with the roll l2.

l i i v 1 l l i i 1 i The paper passing between the rolls 12 and lf is given a posltive feed toward the end of the table and the fingers projecting therethrough. A feed roll 18 is arrzmged beside' the roll 12 and cooperates therewith and is driven therefrom at one end through gears 19 and 20. 4

ln my patent above referred to l. have described a'device for regulating the number of folds to be made 'in the paper. In this machine I employ a mechanism for the Sallie purpose but have simplified and improved the same and will now proceed to describe it in detail.

2U is a blade suspended over and between the rolls 12 and 18 upon a frame 2l, mounted on a shaft 22 and normally held in a raised position by a spiing`23. Guides 23 serve to direct the paper and hold it in place on the table. A shaft 24 mounted in the machinetable is provided with a series of up- -wardlyprojecting trigger arms 25 whose ends extend above the surface of the table through slots 2G therein into the path of the sheets of paper passing between the rolls 12 cause the downward movement of the frame 21 and the engagement of the plate 20 with the paper to crease the same and feed it in' .between the rolls 12 and 18 in the manner described in my patent above referred to. "The dog 29 is forced lout of e agement with the teeth of the ratchet nb the succeeding teeth of said ratchet whic strike thel dog as it is drawn down in the revolution of the ratchet and whenthe'dog is released itreturns to its normal position ready to repeat the operation.

- Alever 31 pivoted on the machine table has notches to receive the pins 33 and 34, the engagement of the lever with the pin 33 holding the frame in proper adjustment to make a preliminary transverse fold in the paper and the adjustment of the lover in engagemcnt with the pin 34 causing the blade to be swung downward into the path of the pape' and direct it between the feed rolls without making the preliminary fold, thus adapting the fold device for full sized sheets or for note size.

journaled in the standards 13 and arel prof wide beveled flanges are mounted on the shaft 36. A vertical plate 44 has openings 45 through which the feed rollers operate and a plate 46 is hinged at 47 and is arranged to coperate and form a guide with the plate 44 and between which plates the Isheets of paperare fed downwardly and folded during their [downward movement.

The plate 46 has an outwardly curved upper end 48 near the feed rollers, and yielding pressure, rollers 49 and 50 are carried-by spring plates 51 and 52 that Aat their upper ends'are secured to the pivoted plate 46 and ada ted to coperate with the rolls 42 to feed) the sheets downward. A spring plate 53 is mounted on the plate 46 and carries a shaft 54 at its lower end having yielding spools 55 at each end between the wide bev- 30 eled flanges 43 and coperating therewith to certainly and positively form a right-angled bend or fold .in the paper sheets. A bar 56 is pivoted at 57 on the machine table and has a notch v58 to receive a pin 59 on a secondary bar 60 that is pivoted at 61 on the bar 56 and has a recess 62 to receive a pin 63 on the plate 46 thereby holding the said plate rigidly in vertical relation with the f standards 13 and in coperation. with the feed rollers mounted in said standards.

.v The plate 46 has notches 64 in its opposite edges near the flanged wheels 43 to make room for the spools 55,'and the said plate l gradually widens from said notches downward and fianges 65 are providedy on each sideof said plate below the said wheels 43 and have outwardly turned upper ends 66 and bulging or iwardly projecting middle portions 67 which engage the folded sides of the papera'nd force them inwardly a sufiicient distance to insure the proper folding of the paper as it passes between the lower set of rollers." In other words the inward bulge of' these fianges prevents -the sides of they folded sheets from swingingoutwardly and the folds from spreading or separating as the paper passes between the pressure rollers.l

It is important, of course, to have the folds parallel with one another and this effect is obtained and insured by the use of these anges with the bulges or projections formed therein.

The recesses formed in the longitudinal edges of the plate 46 allow vthe u per portion of the paper to be drawn inwar as the fold is completed and insure the folded edges in the paper being formed parallel with one another. "Without this construction of plate, the upper edges of the sheets would have a tendency to separate or swing outward and the folded edges formed in the paper insteadl y of being parallel with one another, would diverge from the bottom toward the top of the fold. I therefore regard this construetion of plate as an importan-t feature of my Y invention. .s

The guide plate, a's'shown plainly in Figs. 4 and 5 is arranged beneath the rollers 12 and 18 and is capable of swinging away fromlthe feed rollers, as indicated in Fig. 80 5, to allow access to the folding mechanism in case -of clogging of the machine, and also to permit a sheet to be removed entirely from the machine after the initial folding s operation.- This I regard as an important 853' feature of the invention which has no equivalent in any other machine-of this type. To complete the folding of thel sheets, I' provide plates 68 and 69 supported on pins 70 and 71, the plate 68 having` anvinwardly 90 curved edge 72 toy engage one fold of the paper and the plate 69 having an edge 73 to engage the opposite fold and`turn them in upon one another to complete the folding operation. These plates are' readilyremov- 95 `able and are bentto engagev the folds of the aper at the proper time and to lproduce or orm the proper fold therein. Between ,the

lstandards 13 is a box or receptacle 70 verti` cally adjustable by means of a threaded stud l0(-j 71 and thumb nuts' 72. A shaft 73 is mounted near the roller 38 and carries feed rollers 74, said shaft and rollers being movable in blocks 7 5 that are adapted to'slide on. pins 76 and are yieldingly'v held toward the -roller 38- bysprings 77. The 'shaft 73 has a driving connection with the shaft 38. A f kicker plate 78 is mounted. on the shaft 73 and is arranged to depend vinto the receptacle 7() and is provided with ahump or projecting 1l portion 79 which 'engages the folded sheets i of paper and causes them to be moved for ward into thereceptacle past the 'roller 38 and out of the path ofthe nextsucceeding sheet, and also keeps the folded paper in 11.5 contact with roller 38 sufficiently to insure the forward movement of the sheet. In other words, the folded sheets passing down between the rollers 42 and 74 will be engaged by the gyrating kicker and moved into the 12:?h receptacle a suiiicient distance and with sufficient speed to be entirely out of the path of the next folded sheet as it descends. The kicker has a rapid and vibratory movement produced by any suitable mechanism, preferably a rod 8,0, having a sliding connection 81 at one end with the plate 78 and pivoted at 82 on one of the standards 13 and yield= ingly held by a spring 83 in .engagement with an eccentric 84 on the shaft 38. The 1E@ bination, wit

lsure rollers carrie revolution of the shaft 38 will operate thc eccentric and produce a g rating movement lers arranged one above another in said frame, a. uide plate hinged on said frame, a series o pressure rollers carried by said guide plate and arranged to cooperate with said feed rollers, means for holding said gui-de plate itoward said feed rollers, and said guide plate being 'adapted to swing away from said feed rollers to ermit access to the paper between said eed and ressure rollers.

2. n a pape-r foldinfY "machine, the coma suitab e' frame, of a series of feed rollers arranged at intervals one above another, a guide plate hinged on said frz-une, spr-ing plates mounted on'said guide plate and pressure rollers carried by said spring plates and arran ed to coperate with said feed rollers, a said guide plate being ca able of swinging away from said feed rol ers to permit access to the paper between sai-d feed and pressure rollers.

3. In a paper folding machine, the combination, with a frame, of a vertical guide plate hinged at one end thereon, a series offeed rollers mounted in-said frame in the rear of said plato, ieldingl mounted resd byf sai plate an cooperating lwith said feed rollers, and folding means between which the edges of the paper are bent to form the folds therein.

Il.y 'In a paper folding machine, the combina-tion, with' a frame, of feed rollers mounted therein one above another, a guide plate, spring plates mounted on said guide plate, pressure rollers carried by said sprin plates and between which and said feet rollers the sheets are fed.

5. ln a pa er folding machine, the combination, wit 1 a frame, of feed' rollers arranged one above another, a guide )late having openings therein, spring p ates mounted on said guide plate, pressure rollers carried by said spring plates and arranged to cooperate through said openings with said feed rollers, and means for holding said guide plate and pressure rollers in coperating relation with said feed rollers.

6. The combination, with a frame, of a series-of fccd rollers arranged one above another therein, a guide plate supported in said frame and adapted to be moved toward or from .said feed rollers, a series of pressure rollers carried by said guide plate and copcrating with said feed rollers, mechanism for forming a single fold in the paper and located above said feed rollers and said guide plate` and said uide plate when moved awayf from said .ced rollers permitting the direct delivery of the sheets from said preliminary folding mechanism.

T. ln a folding machine, the combination, with a frame, of a series of feed rollers arranged onc above another therein, a guide plate., a series of pressure rollers carried by said guide plate and copcrating with said fccd rollers, means for locking said guide plate and the pressure rollers in coperating relation with said feed rollers, means for effecting the initial fold in thepaper and located above said guide plate and said pressure rollers, and said guide plate being lapable of removal from its operative position whereby thc sheets will be delivered from the machine after the initial fold therein, substantially as described.

8. ln a folding machine, the combination, with a frame, of an initial folding mechanism,feed rollers arranged to receive the sheets from said initial folding mechanism, a guide plate capable of movement toward or from thc said feed rollers, a series of yieldingly mounted pressure rollers co rating with said feed rollers, a secon( ary folding means, and said guide plate when moved away from said feed rollers permit.- ting the direct delivery of the sheets from said initial folding mechanism.

9. The combination, with a fraane, of initial foldino' rollers mounted tlferein and means for delivering thc paper to be folded thereto, feed rollers arranged one above another below said initial .folding rollers, a

vertical guide plate in front of said rollers and capable of moving toward and from them, folding devices to which access is ermitted by the movement. of'said guide p ate away from said feed rollers, and a means 1 mounted on said frame and connected to said `position to allow the discharge of the sheets from the machine after the initial folding operation.

ll. ln a paper folding machine, the combination, witha guide plate and pressure rollcrs,-of wheels arranged upon each side. of'said plate and having beveled inner faces, and said wheels copcrating with said ressnre rollers and with said plate to ben the paper passing between them.

1Q. ln a foldingl machine, a vertically arranged hinged plate having recesses or notches in its longitudinal edges, the width said plate increasing in width downwardly.

- bend the paper.

' of said plate graduallyinc'reasing from the bottom of said notches downwardly, wheels operating near said notches and having beveledin ner faces, and rollers fitting into the notches in said plate and cooperating with said wheels to bend the paper.

13. In a paper folding machine, thel combination, with a suitable frame, of a guide 'plate having an outwardly.. turned guiding edge, a series of feed rollers, sprin plates mounted on said plate, pressure rol ers carried by sald spring plates and arranged to cooperate with'said feed rollers, said plate `laving'g notched longitudinal edges and means operating inf'said notched edges to 14. In a paper vertical standards, feed rollers arranged one above another on said standards, a guide plate, a series yof ressure' rollers carried thereby, wheels having beveled inner faces .provided on each .side of said plate, there l eing a pair of ressure rollers opposite sa1d feed Wheels an operating between them, and

ther rom whereby the top of the paper will be drawn inwardly 'and the folds formed parallel with one another. 4

15. In a paper folding machine, the combination, w1th a frame, ofa rollerhaving flanged\ ends provided. with beveled inner faces, a guide platepfitting between said lian ed ends, pressure rollers carried by said .gm flanged ends to bend and-fold the ed'ges of the sheets, and means for delivering sheets'v e .plate and cooperating with said of paper between said anged roller and said guide plate. 4

16. In a paper folding machine, the combination, with the vertical standards, of feed rollers mounted therein one ,above another, al roller having flanged ends mounted in said standards intermediate to,

said feed rollers, a guide plate fitting between' said flanged ends, pressure rollers mounted on said guide -plate and arranged to cooperate with said feed rollers, and rollers mounted on said guide plate contiguous to Vsaid flanged endsv and cooperating therewith to form bends or folds-in the edges of the paper.

17 The combination, with a frame of an folding machine, the com' bination, with a horizontal feed table and initial folding mechanism includin rollers arranged side'by side, a risin an falling 55 knife supported abovesaid ro ers, a ratchet wheel, a dog connected with said knife and` normally out of engagement with the teeth of said ratchet, and mechanism actuated byv the impact of the movingarticle for causing 6o said dog to engage the Vteeth of said ratchet to draw down said knife between said rollers, substantially as described'.

18. Thecombination, with a frame,vof an initial ,foldin ers and an oscillating knife, a ratchet wheel, a dog connected withsaid knife, mechanism actuated by the impact of the moving article for causing said dog) to en ge the teeth of l p y knife .will be drawn to a point between said rollers and said ratchet where sai the pressure of the ratchet teeth on the said dog disengaging it therefrom at a predetermined pomt in the revolution of said ratchet, substantially as described.

19.` The combination, witha frame, of an initial folding mechanism comprising rollersv and an oscillating knife, a ratchet wheel a dog connected with 'said knife and normally out of engagement with the teeth of said ratchet, andmechanism actuated by the impact of the moving article for causing said dogto tem orarily engage the teeth of said ratchet an Ymove/said knife to a oint be? tween said rollers, substantially as escribed.

20. The combination, with a frame, of anv initial foldin mechanism comprising rollers, a pivote frame, a knife blade carried thereby and movable toward and from said rollers, a ratchet wheel, la do said frame andv normally ontA o en a ement. with the teeth of said ratchet, a lin-connected with said dog, andja rock shaft havin. an arm pivotally connected with said liik andprovided withmeans in the path of mechanism comprising roll- 65 pivoted on 90

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