US557310A

US557310A - Paper-folding machine

Info

Publication number: US557310A
Authority: US
Publication date: 1896-03-31
Anticipated expiration: 1913-03-31

Description

(No Model.) 5 sheetsshe'et 1,

O. H. MARSTON.l PAPER FOLDING MACHINE.

M Patented Mar.y 31, '1 896.

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ANDREW EGRAHAM.PHOTOLUNUWASNINGI'CN P 2 6. u 9 e oo M 1 n 3 m. r.. S a 5 M d G MM MN. m e OGM .ml-A Dn. SM RG Am D M L .0 HP ,im OP A P Anw Il 3, Uf .v e 5 1w .0 m o. N N

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5 Sheets-S-heet 3.

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PAPER FOLDING MACHINE. K

PatentedMaQr. 3l, 1896.

(Nd Model.) v 5 sneets-sneet 4. 0. H. MARSTON.

PAPER FOLDING MAGHINE.

Patented Mam.` 31, 1896.

f AN DREW BLRAHAM. PHOTO-UTHQWASMINGTOKRC.

(NoModel.) y

5 Sheets Sheet 5. 0.11. MARSTON. y PAPER. FOLDING MACHINE. No. 557,310.. 1%Lte1v1ted Mar. 3l, 1896.

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7M. 1.2m. W C C @a 4 My- AN DREW BLRANAM. PHO'U'LUMO.WASM INGTDMUC.

UNITED 'STATES PATENT OFFICE.

OLIVER H. MARSTON, OF STONEHAM, MASSACHUSETTS.

PAPER-FOLDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 557,310, dated March 31, 1896.

Serial No. 546,954. (No model.)

To a/ZZ whom, it' may con/cern:

Be it known that I, OLIVER H. MARSTON, of Stoneham, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Paper-Folding Machines, of which the following is a specification.

This invention relates to an improvement in paper-folding machines, and particularly to that class of machines designed for folding papers to hold druggists powders.

The invention consists in the novel features of construction and the relative arrangement of parts hereinafter fully described in the specification, clearly illustrated in the drawings, and particularly pointed out in the claims.

Reference is to be had to the accompanying five sheets of drawings, forming a part of this application, in which like characters are used to designate like parts wherever they occur.

Figure 1 represents a side elevation of a machine constructed in accordance with my invention. Fig. 2 represents a top plan view of the machine shown in Fig. 1. Fig. 3 represents a vertical longitudinal sectional view on the lines 3 3 of Fig. 2. Fig. 4 represents a front elevation of the adjustable feedcon trolling disks. Figs. 5 to l0 are detail views of the mechanism for forming the longitudinal creases. Figs. 11 to 14, inclusive, are detail views of the mechanism for forming the transverse creases near the en ds of the paper and for ejecting the finished product from the machine in a partially-unfolded condition convenient for immediate use. Fig. 15 represents a horizontal longitudinal sectional View of the machine shown in Fig. 1, taken on the line 15 l5 of said figure and looking in the direction of the arrow. Fig. 16 represent-s a detail view of one pair of the creasingrolls. Fig. 17 represents a perspective detached view of the feed controlling disks shown in Figs. 1, 2, and 4. Fig. 1S is a detail View showing the several folds in the blank arranged in the order in which they are made. Fig.,l9 is a detailed view showing the spring for operating the rod and finger in the drum. Fig. 2O is a detailed view of the slotted brackets in which the rolls r are located.

Referring to Figs. l, 2, 3, and l5, a represents a suitable framework held together by cross-rods x8 and nuts fr?. Arms a extend from the top of one end of the framework and are provided at their ends with slots CL3 arranged to receive and hold the ends of a/ lshaft a2, carrying a spool a4 fast thereon, from which a strip of paper a5 of suitable width is fed to the machine. As fast as one spool is exhausted the shaft and said spool are removed from the arms a and another shaft and spool placed upon said arms. The spools are not always secured in the same relative positions upon their respective shafts,'thus feeding the paper into the machine at different places. In order to overcome this diiiiculty and insure the paper being fed into the machine at the same'point, I secure upon 'the inside of one of the arms a a spring-bar CLG. A set-screw ai, mounted in said arm and se` cured to said bar, serves as a convenient means for adjusting the free end of said bar in or out and retaining said end in its adjusted position. -The free end of this bar is arranged to engage a groove a9 formed in the periphery of a pulley a8 fast on one end of the shaft co2.

By means of the bar and pulley the spool `may be adjusted crosswise of the machine,

so as to deliver its paper at a predetermined point. Levers a", pivoted at one of their ends by bolts am to the inside of the top of the framework CL, are provided near their free ends with bearings al, in which are mounted the ends of a shaft C020, upon which is secured a roll al, arranged to bear upon a roll als immediately beneath it. These two rolls constitute the feed-rolls between which the paper a5 from the spool CL4 passes and by which said paper is fed into the machine in predetermined lengths. The roll als is mounted upon a shaft d and fast thereto. This shaft a is mounted in suitable bearings in the framework a' immediately below the shaft d20. A spur-gear al@ is secured to one end of this shaft and engages a driving-pinion am, fast upon a shaft (1,15, connected to any suitable source of power. Fast upon the opposite end of the shaft a from the gear o16 is a sprocket-wheel @22, (shown in dotted lines in Fig. 1,) upon which is mounted a sprocket-chain C021. A spur-gear o23, fast upon the shaft all, engages a similar gear L24 upon the shaft d20. The rotation of the shaft IOO L20 rotates the roll a, the sprocket-wheel @22, and by means of the gears @23 and @24 also turns the roll am. The shaft a is driven continuously to feed the paper and to keep in operation the various parts of the machine hereinafter described through the medium of the sprocketchain am. The paper being fed into the machine by the continuously-turning rolls d10 and als is iirst cut into suitable blanks and afterward folded as desired by a series of creasingrolls and carrying devices.

While it is desirable that the creasing or folding mechanism be run continuously, it is important that the feed of the strip of paper a5 be intermittent and that such intermittent feed be so regulated as to feed the paper int-o the machine in lengths corresponding to the length of the blanks to be folded. This I accomplish by means of the mechanism shown in Figs. l, 2, 3, 4, and 17.

Upon the shaft a and secured to each end of the roll d is a disk C625. This disk is provided with projecting screw-threaded pins am a2?. A similar disk a, provided with an aperture a2, is looseljT mounted upon the shaft all, adjacent the disk e625. The disk @28 is provided with a cut-away portion am, corresponding to the cut-away portion (L26 of the disk m25. The peripheries of the disks @25 and @L28 each project a slight distance beyond the periphery of the roll als, except at the cut-away portions (L26 and @31, where they are flush with the periphery of said roll. The disk C128 is provided with slots through which the pins a2? of the disk L25 pass. Wing-nuts aszupon these pins serve as a means for binding. the disks firmly together in any desired adjustment. The roll d10 (see Fig. 2) extends over the disks and rests upon them. It is thus kept and raised from the roll als by means of the disks, except at the cut-away portions, where it can move toward the roll als and with said roll grip the paper to feed the same forward into the machine.

The cut-away portions are of a length corresponding to the length of the longest blank to be used. Then it is desired to use shorter blanks, the disk (t28 is adjusted, as shown in Fig. 4, until the portion of the periphery of the roll als that is unprotected by the disks corresponds to the length of the blank to be used. The difference in diameter between the disks and the roll als is very slight-j ust enough to make the rolls d10 and als inoperative, except when the roll al@ drops into the cut-away portion. The bearings of roll ctw, being hinged, can be raised and lowered by Jthe disks. This movement, however, is not sufficient to disengage the gears @23 C024.

The paper as it is fed from the feed-rolls is delivered upon a plate agg, secured to a crossbar u32, cast integral with the framework of the machine. The free edge of this plate is To the side of the cross-bar is secured a knife e36. A standard CLST is apjustably secured to each side of the framework a of the machine, directly over the crossbar cs2, by having a screw a.4T pass through a slot e46 iu a foot @45, that forms the base of said standard. By this construction the knife a, that is supported by these standards, can be adjusted so that when it descends it will just clear the knife a3, the two knives forming shears. A plate as" is secured to the base of the standards by screws L41 on the side next the feederolls. As shown in Fig. 3, this plate is arranged over the plate L33 and a short distance above the same, thus forming a passageway from the feed-rolls to the knives.

A lever m2, pivoted at x to one of the standards w37, (see Figs. l, 2, and 3,) is provided at the end of its long arm with an adjustable screw x5, arranged to pass through a hole in the plate a3* and bear upon the paper to hold the same, except when it is being fed. The end of the screw x5 is kept in engagement with the paper a5 by means of a spring x4, connected at its ends in any suitable manner to the lever and the plate The short arm of the lever is arranged to be engaged by an arm ac3, integral with one of the levers a and positioned over the short arm of the lever x2. When the roll al descends to feed the paper, the arm 003 engages the short arm of the lever :102, thus raising the end of the screw 005 from the paper, permitting the latter to be fed past the knives the length of a blank. When the roll am is raised,` the arm x3 leaves the lever :t2 and the spring 0c" forces the end of the screw down upon the paper to prevent the latter from sagging near the spool or being drawn back.

Rods als are mounted to slide in correspond ingly-formed depressions in brackets dgat the top and bottom of the standards a3?. These rods are held in place by clamps L39 secured to said brackets and conning the rods between said brackets and clamps. Secured at its ends to said rods is a bar m10, to which is attached a knife am by means of screws au. These rods a4@ are pivoted (see dotted lines, Fig. l) t0 the ends of bars w52, that in turn are pivoted to the free ends of levers @53, the opposite ends of said levers C053 being rigidly secured to a shaft am suitably mounted in the framework a of the machine. The knife am is operated at proper intervals by means of the mechanism just described. As the paper is fed forward past the knives the required distance it rests upon a plate b slotted at b' to receive a creasing-blade b2, secured by screws b9 to a bar blo connected to the free ends of levers b3. These levers b3 at their opposite ends are rigidly secured upon a` shaft b4 rotatably mounted in the framework of the machine. The plate b is secured by screws b5 to a bar h6 suitably attached by screws 117 to the framework a. A plate @35 'secured to the lower clamp L39 is arranged over that part of the plate b that is between the slot b and the knives forming a continuation of the pas- IOO IIO

sage that is on the feed-roll side of the knives. The distance from the slot b to the knives corresponds to the distance from the crease Z in the blank c to one of its sides. This crease Z is shown in Fig. 18 as positioned at one side of the center of the blank c, in order to provide for a flap c3.

A rod 512 connected at one end by a screw Z913 to one of the arms b3 is pivoted at its other end to the free end of a lever Z714, fast upon a shaft 1115 rotatably mounted in the framework of the machine. As the shaft 1915 is operated the creasing-blade forces a blank c through the slot b and between a pair of creasingrolls cl. As shown in Figs. l and 3, there are four sets d', d2, d3, and d4 of these creasingrolls, the first three sets being arranged to form the longitudinal creases or folds, and the fourth, d4, being arranged to form the cross-creases 4 (see Fig. 18) at the ends of the blanks. The number of sets of these rolls and their relative arrangement will depend upon the particular style in which it isdesired to fold the paper. There is a creasingblade or analogous device for each set of rolls. As the first three sets, d cl2 d3, are duplicates of one another7 a description of one will suffice for all. l

Referring to Figs. 1, 3, and 1G, f represents two rollers fast upon shafts f', that are mounted to turn in blocks f2. These blocks are slotted, as at f4, to straddle and slide upon some suitable support. (Here shown as a part of the framework a of the machine.) Screws f5, mounted in said blocks and adapted to pass through slots in the framework d or other support, secure said blpcks to their support, and also permit the block to slide upon its support. In practice one block is held rigidly upon its support and its companion block and roll arranged to have a sliding movement. A spring f8 has its ends secured in said blocks and serves to hold the roll that is adjusted to slide yieldingly against the roll mounted in the fixed block. One of the shafts f is provided at its end with a sprocketwheel f7 arranged to be engaged and driven by the sprocket-chain C021. Spur-gears f6 fast on the shafts f engage each other and cause the rolls f to turn in unison, the separation of the rolls caused by the insertion of the creasing-blades and paper not being sufcient to disengage the gears f6.

Referring now to Figs. 1, 2, 3, and 14 and to the set d4 of the creasing-rolls, c represents bolts (here shown as two) arranged in a slot e4 in a plate e5 integral with the frame CL of the machine and lying crosswise thereof. These bolts are provided with screw-threaded ends e3, upon which are mounted thumb-nuts e6. l/Vashers e8 are mounted upon the bolts between the plate and the thumb-nuts. These bolts extend through the plates and carry brackets composed of arms c2 held together by standards e". Rollers e9 are rotatably mounted in these brackets, as shown in Fig. 14. By means of the thumb-nuts the brackets and their rollers can be set at any desired distance apart. This distance is just sufficient to permit the passage between the rolls of carryingarms that transfer the blank from the rolls cl3 to the rolls d4 to an unfolding wheel. As the blanks pass the rolls d4 they are creased, as at 4. (See Figs. 14 and 18.) The creasing-rolls CZ', cl2, and cl3 are all driven by the sprocketchain L21 and arranged to rotate in a direction to pull the blank from the creasing-blade and force it into a spring-clip on the end of a carrying-arm by which it is carried to the next set of rolls. The rolls (Z4 are rotated by the blank as it is vforced between them. As the blank is passed between the rollers d where the crease 1 is formed it is forced by said rolls into a spring-clip h secured by screws fm. to a bar m3 connected to the free ends of levers m, that are rigidly fixed upon a shaft fm2 rotatively mounted in the framework a of the machine. A bar m4 connects one of these levers with the free end of a lever m5,that is fast upon a shaft m6 rotatively mounted in the frame- 'work c. The movement of the arm m is so timed that the clip h is close up under the rolls d' to receive a blank as it is delivered. It immediately carries the blank to the rolls d2, that are shown as arranged one above the other. A roller m7 carried by two arms m8 pivoted to the framework CL above the rollers Z2 is arranged to be yieldingly held by a spring m40 that bears upon one of the arms m8 against the upper roller f of the rolls d2, but to move away from said roller when the blank c carried by the clip 7L is forced-between them, and serves to support the blank, so that it can be carried by the upper roller fdown upon atable m9 immediately below the rollers d2. This table m9 is secured in any desired way to a crossbar m10 attached to the framework of the machine by screws m, The free edge of this table is turned up, as at m11, to enable it to project inward over the lower roller f of the rolls d2 to insure the delivery of the blanks c upon the table and also to permit the blanks to partially double up, as shown in Fig. 6. As the blank c is forced down upon the table m9 it slides over said table until its free edge strikes'the toes m12 of rods m13. The continued movement of the blank upon the table causes it to partially double up, in which position it is caught by acreasing-blade m18 and forced between the rollers d2 to form the crease 2 to make the iiap c3.

The rods m13 are mounted in suitable apertures in the bar m10 below the table. At one end, fm1, these rods are screw-threaded to receive a nut m15, by which the movement of the rod toward the rollers cl2 may be adjusted. The other ends of these rods are bent to form toes m12, that project up through suitable slots inthe table. Helical springs m16 are mounted upon these rods to yieldingly resist the movement of the blank in order to insure its taking the required position before being caught by the creasing-blade m18. This blade is secured to a bar m19, which in turn is connected IOO IIO

. to prevent the iiap from unfolding as the to the free ends of levers m20. These levers at their other ends are secured to a shaft m21 rotatively mounted in the bed of the machine. Arms/rn22 connect these levers with the free ends of leversm23 rigidly connected to ashaft m21, that is rotatively mounted in the bed of the machine. As the blank c is delivered from the rollers d2 it is. forced into a springclip h? upon a bar TL and carried to a roller T and one` of the rollers f of` the rolls d0. The bar fn, isV secured to the free ends of levers TL, that at their other ends are rigidly attached to a shaft n4 rotatively mounted inthe framework of the machine. Arms 'n.2 join these levers with levers n0 rigidly connected to the shaftv @51. The roller fof the rollsd3 that is nearest theclip h2 has restingupon it aroller T resting at its ends in aslotted bracket T' on the blocks f 2. (See Figs. l and3.) The roller T serves to keep the blank after it leaves the clip 7b2 in contact with the roller f,.in order that the blank may be forced past the guardstrip T2 secured to the bracket T adjacent to the roller T under a sliding clamp-plate4 71.4 and againstthe toes T4 of rods T5. These rods are mounted in suitable brackets T0, secured to the plate e5. These rods at one end',.T7, are screw-threaded, and upon. said ends are arranged nutsT0 to adj ustably limit the movement of the rods toward the rolls d0. Attheir opposite ends these rods are formed with toes T1, that project up through slots T0 in altable T10 secured to the brackets-T0. Helical springs T11 on these rods enable the rod to yieldingly resist the pressure of the blank. The free edge of the table T10 extends over one of the rollers f of the rolls d0 and in close proximity to;` its companion roll in order to insure the` blank` being fed upon the table.

The table is formedY with a slot T12 through which the blank is forced between the-rolls d0 in order to form the crease 3. Asthe blank is fed upon the table T10 it is caught by a creasin g-blade h5 and forced down between the rolls d0. This blade is secured upon a bar h5 attached to the free ends of levers 7L0. These levers at their other ends are rigidly attached The rods 71.11 are loosely arranged in the bar 7&5 and free to slidelup and down in said bar.

Then the bar h5 descends, the plate 71.4 strikes the blank and the table T10 to clamp the blank.

The bar h5, however, with its creasing-blade continues to descend, forcing `the blank be tween the rolls, the loose-or sliding oonnec` tion between the bar h5 and the platehi per` mitting this independent movementv of the l in the unfolding-drum t.

clamping-plate 77.4 and the creasing-blade hs.

As the bar 71.5 descends, the plate holds the` iiap e0 of the blank cagainst the blank in order arm 708 connects one of blank is forced between the rollers f of the rolls d3 by the blade h5 to form the crease 3. As the blank leaves the rolls d0, it is forced into spring clips 7t14 on the ends of levers 71,15 and. carried to the passage-way leading to the unfolding-wheel t. During the passage of the blank from the rolls d0 to the Wheels t it is forced between the rolls d4 in the position shown in Fig. 14 in order to form the creases 4. One of the levers 7t15 carries at itsfree end arotatable disk 71,10. This disk is adapted, when the parts are in thel position shown in Fig. 10, to rest against and be turned by a `roller 71.17 in order to assistin forcing the blank into the clips 71.11. The roller 7t17l is arranged upon a-shaft 7L10, that is mounted in the boxes f2 of one ofthe rollers f of the rolls d5. The clips 7L11 are secured to their respective arms by screws 72.101.. A spring-plate 7L20 is secured at one end by a screw 7t01 to each of. the levers 7L15 on the` opposite side of said. levers `from that to which the clips 7t11 are attached. The free ends of these spring-plates are .provided with pins 71.00, that pass through` said leversand impingeagainst ythe clip 71.14. When the blanks are forced into these clips, they pass the pins 71,22, and during their passage between the rolls d1 the pin and clip together securely retain the blank in place. A crossrod` 71.10 joins together the several levers 7L15 (here shown as 3) in` order to bind these parts together. The `levers 7t15`are rigidly mounted upon a shaft 7h20, rotatively mounted in the framework of the machine. Lever 71.24 is also `rigidly mounted upon the shaft 7h23. A` bar 71.25' connects the freeend of this lever to the free end of the lever` hgrigidly mounted upon a shaft 71.27, the latterbeing mounted to rotate in the framework of the machine. The levers 71.15, after they pass the rolls C74, stop with the opening between the clip 7L11`and the levers 7L15 in line with a passage-way t4, formed by a plate t0, secured tothe plate e5, and by aplate tgbelow said. plate t2,.secured to the framework of the machine, all as shown in Figs. 12 and 13. As the levers7t15 come to the position shownin Fig. 12 the free end of the lever t5 passes up between the levers h15 behind the blank. As soon asthe levers 7115 assume the position shown inFigs. 3 and 12A the end of the lever t5 is thrownforward from the positionshown in Fig. 11 to the positions shown inFigs. 1, 3, 12, and 13, thus carrying the blank from `the levers h15 into the passage-way t1 and under the unfoldingdrum t. The unfoldingdrum t is set over the delivery-mouth of the the machine. Upon the endof this shaft is .secured a sprocket-wheel s, that is driven by asprocket-chain @21.

t5 represents a spring-pressedrod mounted To this rod is rigidly secured an arm 7 carrying a finger t0,

i that extends through a slot t0 in the periphery `of the drum.

This drum is arranged to ro- IOO IIO

tate in the direction indicated by the arrows, Fig. 3. The spring 10 (see Fig. 19) is coiled upon said rod, one end of said spring being fast to said rod and the other end of said spring being secured in any desired way to said drum. This spring normally tends to make the linger assume the position shown in Fig. 3. Just as the finger passes the delivery-mouth of the passage-way t1 a blank is pushed by the lever t5 between the periphery of the drum t and the end of the finger t8. Simultaneously with this operation a projection (not shown) on the rod t6 strikes a cam t, (see Fig. 2,) forcing the finger to the position shown in Fig. 13, thus gripping the blank between the finger and the periphery of the drum and drawing the same up by the ends of bars 10. The ends of these bars near the Wheel are covered with rubber, as at 7511. To the under side of these bars are connected spring-blades 12 having rubber 12 at their free ends in close proximity to the drum. As the blank is drawn by the rubber 13 the flap c2 is caught and unfolded. After the finger and blank pass the end of the bar i111 the rod is released from the action of the cam and the finger is thrown upward by the spring, thus dropping the blank upon the bars in an unfolded position, as shown in Figs. l, 3, and 12. These bars are mounted upon suitable cross-piecest15 connected at their ends to the framework of the machine. The lever t5 is rigidly secured on a shaft 1516, that is rotatably mounted in the framework of the machine.

The operation of the parts so far described is, brieiiy, as follows: As fast as a blank is cut it is forced by the blades b2 between the rolls d. As the blank leaves the rolls d' it is caught by the clip h and carried to the rolls cl2. When in position on the table in front of the rolls d2, the blank is immediately forced through these rolls by the blade m18, where it is caught by the clip h2 and carried to the rolls C22. As soon as the blank is in position on the table r11) it is forced by the blade h2 between the rolls digwhere it is caught by the levers 7x15 and carried by the rolls d1 and delivered by the lever t5 to the unfolding-drum. The rolls have a rotary motion,while the blades and clips have a reciprocating motion. The blades reciprocate toward and from the rolls, while the clips reciprocate between two sets of rolls, carrying the blank from one set of the rolls to the succeeding rolls and immediately returning to their initial position.

The precise manner of mounting the levers upon their respective shafts is unimportantso long as they are rigidly secured to said shafts. For sake of illustration, in the drawings I have shown a collar and set-screw. A sprocket-wheel s is mounted upon a shaft s2, and a like sprocket-wheel s3 is mounted upon a shaft s1. These shafts are in the lower part of the framework of the machine and at opposite ends thereof, as shown in Fig. 1. The

shafts @51, 71.27, and m21 are provided with arms s5 for engaging the cams 311 rigidly mounted CII upon the shaft 32. By this means a rocking motion is imparted to the aforementioned shafts and by them transmitted to their respective lever connections. The shaft m6 is provided with a lever m10. This lever is connected by lever m11 with an arm m12 rigidly secured to shaft 2516, the shaft m6 receiving its motion by means of shaft i111. The shafts IL10, 515, and 1516 are provided with arms 32, arranged to engage the cams S10 upon the shaft s4 and to thereby receive a reciprocating motion and impart the same to their respective lever connections. A sprocket-chain C021, mounted upon sprocket-wheels s', s3, and @22 and the sprocket-wheel f7 on the shaft f', receives motion from the Wheel @22 and communicates it to the other sprocket-wheels and through them communicates motion to the several parts of the machine.

The cams s upon the shaft s2 and the cams S10 upon the shaft s4 are all of the conventional shape and kind properly positioned upon their respective shafts in the ordinary and well-known manner, an illustration and description of one therefore suiiicing for all, since these cams are practically duplicates of one another.

While the drums and rolls of the machine have a continuous rotary motion the levers m3, m, m20, hf, h6, h15, and t5 have a reciprocating motion, all as clearly shown in the drawings heretofore described.

. represents holding-rods suitably mounted in each end of the bar x10 and provided with springs x so arranged that the rods are yieldingly held against any upward pressure on their lower ends. As the knife descends to cut a blank, these rods engage the blank and hold it in position after it is cut until the blade b2 engages it. The rods being slidingly mounted in the bar the lower ends of said rods will remain upon the blank a short time after the knife has left the blank, and it is during this interval of time that the blade b2 engages the blank. The purpose of these rods is to prevent the blank from becoming displaced after it is cut and before it is engaged by the creasing-blade.

Having thus explained the nature of my invention and described a way of constructing and using the same, though without attempting to set forth all of ie forms in which it may be made or all of e modes 0f its use, what I claim, and desire to secure by Letters Patent, is-

1. In a paper-folding machine, in combination, a plurality of pairs of spring-pressed rolls, blades for forcing a blank between said rolls, a pivoted arm provided with a springclip constructed and arranged to receive said blank from one of said pairs of rolls on one side of said clip andto deliver said blank from the opposite side of said clip to the other of said pairs of rolls,the blank passing through said clip, substantially as and for the purpose set forth.

2. In a paper-folding machine in combina- IOO los

IIO

tion a series of rolls, a series of blades for forcing a blank between said rolls, and a series of pivoted arms provided at their ends with spring-clips for receiving a blank from one set of rolls and transferring it to the succeeding set of rolls, and a pair of end-creasing rolls the last of said series of arms being arranged to carry its blank between said endcreasing rolls.substantially as and for the pur pose set forth. i

3. In a paper-folding machine in combination an adjustable intermittent feeding device, a cutting device, a series of pairs of springpressed rolls, a series of blades for forcing a blank between each of said pairs of rolls, a series of pivoted arms provided with spring-clips for receiving a blank from one pair of rolls and transferring it to the succceding pair of rolls, an unfolding device including a drum provided with a spring-iinger, and a pair of end-creasing rolls the last of said series of arms being arranged to carry the blank between said pair of end-creasing rolls to form the end creases and to deliver said blank to the unfolding device, substantially as and for the purpose set forth.

4. In a paper-folding machine in combination a series of pairs of rolls for Vcreasing a blank, an unfolding device comprising a rotary drum provided with a spring-pressed finger, a pair of pivoted arms, provided with a spring-clip at their ends for transferring a blank from the last set of rolls to the vicinity of said drum, and a pivoted arm forforcing they blank from said spring-clip against said drum and beneath the free end of said finger, substantially as and for the purpose set forth.

5. In a paper-folding machine, in combination, an automatic intermittent feeding device, an automatic cutting device, an automatic holding member controlled by said cutting device, and arranged to hold the blank after it is out, and an automatic holding member controlled by said feeding device arranged to hold the free end of the blank, except when the latter is being fed, substantially as and for the purpose set forth.

6. In a paper-folding machine in combination, a pair of spring-pressed rolls f, a friction-roll yieldingly held against one of said rolls, means for forcing a blank between said friction-roll and one of the rolls f, a table upon which said blank is delivered, a springpressed toe mounted in said table against which said blank is forced to partially double up the same, and a creasing-blade arranged to force 'the partially-doubled blank between the rolls f, f, substantially as and for the purpose set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 20th day of April, A. D. 1895.

OLIVER II. MARSTON.

Titnesses:

A. D. HARRISON, RoLLIN ABELL.