US1174738A - Slitter and rewinder. - Google Patents

Description

S. M. LANGSTON. v SLITTER AN-D REWINDER. APPLICATION IFILED IuLY 2,4. Isls.

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rotary'eutiers, and rewound in separate but narrower rolls.

lvl] i* "senizion relaes particularly to elle mechanism for' slitting the material andA guiding ii'. in ine rewinding mechanism and involves the use of a plurality of freely roi-arable steel disks each having a sharp "Jeedge resiliently pressed against the material so as to ont through the leiter as it pa; over #the polished surface of a hardened steel rorated rolier adjacent to but separare from the winning mechanism. By means or my improved construction, the line, dus and minute shreds resulting from the euring action is permitted to dropV away rorn ehe fresh cui: edges wihout being re- Wonnd wien the separate strips and the later are prevented from any lateral movemensucli as might cause them to overlap or inerweave. i f

Reference is to be had to the accompanying drawings in which similar reference charaoers indicate corresponding parts throughout "alle several views,4 and in which" Figure 1 is an end View of a machine embodying' my invention; Fig. 2 is a from; eleraion; Figf is a side view of one of the cuting rollers and its supporting arm;

i is a from; view o the parts shown in lng.-

3; and Fifi'. 5 is a perspective view of one of the spreaders.

The speciic machine illustrated includes two main. end frames 10 mounted on a suitable naseand held rigid in respect to each other. ln the rear is a suitable support 11 vfor the roll A of material to be sliited and rewound, and from this roll the paper passes over a series of rollers 12, 1.3 and 14- to the first of the two drums or rollers 15 and 16. These latter are positively driven in the 'saine direction and at: the same speed and are of sufficient size and strength to supporu ille rolls oslitted material freely, resizing pecicacion of Letters Patent;

1,009,757, issued November appncannaies my ae, 191e. seri-ai ne. recess.

thereon and guided vertically by 17 engaging with the ends of the :llined rolls B. The rolls are held down on the drums by a pressure roller 1&5 which man be carried by links 19 on the free ends f pivoted arrns 2G and may posieiwiy driven by suitable kchains and gearing as shown in my priorlpaens, 1.00%???56, and m 1911. Y ln the main the features so far referred to do noiJ involve any novei feaure of presenl invention.

The rollers 1 2 and 13 ane mainly as l ing and ension rollers and are free io 'be rotated by ine paper. niiile the roller la is mounted closely adjacen to die firsiJV o' ne two rewinding drums 15 and preferably a slighl distance below the saine and is posi- 'v tively driven at, substantially lie saine su:-

ace speed as the drums 15 and 1G. This roller presents a polished hardened steel surface and is so mounted ha; the paper passes over the front side ihereoi jus prior to pass ing over *che1 first dru rn 15. Mounted to press direct-ly against the roller 11i at a point.

Where the paper is in direct Contact with lie latter, l mount a plurality of cutters 21 each in the form of a freely rotatable steel disk with a sharp 'il-edge., Each cut-ter iscarried by an arm made up o two seci'ons '22 and pivotally connected together. section Q2 terminates in a yoke within which the cuter blade is rotatably mouned while the lower section 23 is mounted on a shaft Q4. A t the pivotal connection between lie two arm sections l provide spring means normally tending to more the upper section in respect tothe lower and about the pivot so as to press the cuter toward the roller 14. Preferably this lne-ans includes a leaf spring 25 secured to the lower section and having lts upper end pressing against. the.

upper section and ai .the upper end there is preferably provided a regulating: screw 26, whereby the ension o *die spring may be readily controlled. It isof course evident that other forms of tension springs and other regulating means might be employed in place of the specific means shown.

The x several arms are independenly mounted-onine shaft 2l and are 'so connected to lie later that they may be moved either axially or circuniferent-ially of the latter, so as to space them. at any desired The upper distance apart to control the Width oftlie fnished'srips and to, bring anyr all of vagainst the roller ll.

the cutters into operative or inoperative' position. The connection between the arms and the shaft may be of any suitable character, for instance, l may employ merely a set screw through the collar forming the lower end of the lower arm section 23. The shaft 2lis normally held against rotative movenient so aste hold. the several cutters against the roller 14 and under the desired tension of the springs It may be permanently held against rotation although preferably it is mounted. so that it may turn and thus permit the simultaneous movement of all of the cutters out of or into operative position and for the simultaneous variation in the pressure with which the cutters are held rl'he bearings for the 'ends ci' the shaft 2l may be made so that they may be tightened and clamp the shaft or the shaft at one end may 'have an arm 27 rigidly secured thereto and terminating adjacent one end of the trame l0.v rlhis arm when clamped to the end frame -will prevent the rotation ot the shaft and being ot' con siderably greater length than the radius'of the shaft permits of a close adjustment of the rotati'reposition of the shaft.

The roller ll against which the cutters are pressed has. as previously stated, a polished hardened steel surface. rThis roller need not be of solid steel in fact it may be hollow. 4Instead of making the. entire surface of one piece of steel it inay he subdivided transversely into sections, so that in case any one section becomes scratched .or scored it may be removed and replaced by anew one. without necessitating the, replacement or repolishing of the entire roller. The polished hardened steel surfaces ofthe .kind required are comparatively expensive and in my improved construction l am able to malte the roller of the minimum size and weight. It does not act as a support for the rewound material and therefore it may be of small size and only of sullicient rigidity to sustain its own Weight, the tension of 4the paper drawing over it and the tension of `ther springs pressing the cutters against it. A great saving is thus effected over a construction in which the hardened steel roller serves at the same time as one ofthe rewinding erums and serves to support the weight of the rewound material.

In the' cutting' of certain kinds of paper a very tine dustor lint is liberated along the slit and this when rewound with the paper, is often in sutiicient quantity to hecome objectionable when the paper is used in connection with delicate mechanism such for instance as a stock ticker or some forms of adding, tabulating or recording m21-,

chines.

ln my improved machine I permit the slitted material to pass across a narrow space betweenV the rollerk 14: and the first rewinding drum 15 and wh ile passing across this space i apply to the surface of the,

paper at the slitted edges iingersor spreaders 28 mounted on a rod 29 so as to be longitudinally and angularly adjustable. These act not only to insure the complete separation of the adjacent paper strips but also to prevent overlappingr or interweaving of the edges and to liberate the dust or lint from the edges and prevent it from being wound into the rolls. The spreaders also tend to remove the very minute feathery or hair-like selvage from the strips, which selvage on adjacent strips might otherwise become interwoven in the rewinding, so as to even render it ditlicult if not impossible to separate the adjacent rolls after they have been rewound.

Having thus described my invention, what l claim as new and desired to protect by Letters Patent,l is: j

l.v A slitter'and rewinder having a pair of drums for supporting between them the roll oi ren'oundmaterial and rotating the latter, a rolleradjacent one "of said drums and over which paper passesto said drum, a plurality of cutters resiliently pressed against said roller for slitting said paper as it passes over said roller, and a plurality of spreaders pressing against the Surface of the paper as it passes from said roller to said drums.

2. A slitter and rewinderhaving a hardened steel roller, a plurality of cutter l disks individually resili'ently pressed against said roller and rewinding mechanism including two drains for supporting and rotating the roll of rewound material, jone of said drums receiving the material directly from said roller and a plurality of fingers having flat ends pressing against the surface of said.

material. intermediate of said roller and said drinn.

3. A slitter and rewindcr having a pair of drums for supporting between them la. roll of rewound material and rotating'the latter, a slitting mechanism including a .plurality of cutters, spreader mechanism including a plurality ot.' spreaders, and a sup- ,portingrodg cach ot' said spreaders being adjustablel lengthwise of the rod and also adjustable about its own axis and -in the direction of its length.

Signed at Camden, in the county of Camden and State ot' New Jersey, this 21st day of July,A. D. 1913,

SAMUEL M.' LANGSTON.'

lVitnesses z ANNA W. KUENZEL, HELEN H. Yunnan.'

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