US1464544A - Feeding and cutting mechanism for waxed paper - Google Patents

Description

Aug. 14, 1923. 1,464,544

H. A. SEVIGNE ET AL .FEEDING AND CUTTING MECHANISM FOR WAXED PAPER Filed May 4. 1921 I nvmvrq/a's; Henr/ 4. 56645706. War/M41 4420/0! ATTORNEY reams au iia, teas.

ute stares $2 715 oasis.

HENRI A. snvrsivn, or WINTHROP, MASSACHUSETTS, AND FRANK K. ARNOLD, or

NASHUA, NEJV HPMPSHIRE,

nssrenons r0 NATIONAL BREAD WRAPPING "MACHINE" COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION 'OF MAS- SACHUSETTS.

Application filed. my 4,

To all an ham it may concern 1 Be it known that we, HENRI A. Snvmivn and FRANK K. ARNOL citizens of the United States, and residents, respectively, of Winthrop, county of Suffolk, and State of Massachusetts, and of Nashua, county of Hillsborotigh, and State of New Hampshire, have invented certain new and useful Tmpr'ovements in Feeding and Cutting li/lecha- ,nism for ll] axed Paperyof which the following is a specification.

This invention relates to machines of that type employed forfwrapping articles such as loaves of bread. A machine of this general character is illustrated in Letters Patent No. 1,253,636, granted to us January 15, 1918. 'As stated in that patent themachine was adapted to use waterproof paper of a character known as dry paper, or slightly waxed, and said machine included means for applying sealing .material such as melted paraffin to portions of the wrappers. 1

' The machine of the patent referred to 0perates to push ,a strip of paper over a bed and under a knife which intermittently cuts the strip into sections; When'the paper is of a dry or lightly waxed character no dificulty is experienced with the proper conversion of the strip into sections. For some purposes we have found it desirable to employ what isknovvnas self-sealing or heavywaxed' paper; With such paper used in the machine of the patent the employment of means for applying sealing material to the wrapper can well be dispensed with. We have found however that the presence of the extra coating of waxon the paper interferes somewhat with the proper feeding and cutting of the strip into sections. son is that some of the heavy coating of wax is pressed or-rubbed off by the rolls, pre'sser feet-and knife and accumulates thereon so as to interfere with their action.

' An important feature of the present invention is the provision of means for con- -verting a stripofheavy-waxed or self-seal- :ing paper into sections without transferring v As mentioned above,

wax onto said means.

the'machine of'the patent pushes" the paper over a bed. The area of thebed is such that the-friction between it and the heavy coating of wax some- One rea- FEEDING AND CUTTING rancnenrsivi non vvAXEn rerun.

1921. Serial No 466,786,

times acts to retard forward movement and cause that portion of the paper nearest the pushing rolls to buckle up so that the paper is not properly advanced; to have theright length of section cut offby the knife. This tendency is increased by the presser feet which bear intermittently on the paper bea tween the knife and the pushing rolls. $011 .6-

times, also, the paper has a tendency to be pushed askew.

Another feature of the present invention therefore is to provide amachine of the intended for use in bread wrapping machines, the accompanylng drawings do not' illustrate any particular means for utilizing the cut sections.

Inthe drawin s: Figure 1 is a longitudinal sectional view of a portion of a machine embodying our present improvements. l

Figure 2 is a sectional view illustrating means employed for causing the rolls which pull the paper to act intermittently.

Figure 8 is a detail view illustrating a modification hereinafter referred to.

For convenience inv the explanationof the embodiment of the invention illustratechnumerals are employedfor some parts and letthose parts which are or may be the same as ,ters for other parts. The numerals indicate those which are similarly indicated in the Patent 1,253,636 before referred to. In some aspects however the mechanism indicated by numerals may be like that shown in our Let- 'ters Patent' No. 1,412,754, April 11, 19-22.

In the embodiment of the invention illustrated, referring particularly to Figure 1, the machine has a table or bed 88 a portion permit the passage of loaf-lifting fingers 52 which elevate'loavesthrough a vertical passageway or chute one wall of which is indicated at 118, said wall being yieldingly car ried by a fixed bracket 120.

of which is slotted as indicated at 88 to A strip of paper from suitable source of supply is intermittently advanced over the cutting the paper.

bed by means presently described and is out into successive sections by a knife 129 "carri dbv kn fe. ba 12 w ch is vertically;

In the "present machine the 1.)resser feet a ct carried by the rods 15? are blocks'of wood treated as hereinafter described to render them incapable of removing; wax from the paper wh'enthey rise after bearing; onithe paper. In Figure 1 the 'feetra 01 are shown as. in the position which they occupy while the knife is cutting the paper. It is to beunderstood that the said feet, as well as the knife, are in a higher position during the feedof the strip'.* I Mounted in "recesses in the bed 88 below the feetct aredisks or strips of wood '5 I) which are treated similarly to the feet 'so that the wax on the paperwill notadhere 'thereto while being-fed over the bed.

To pull the paper over the bed 88 we emv ploy rolls 0 d which are located. close to the knife and betweenit and the rear pressers a. This relative positioning of the members just described is ror thepurpose of so limit ing' the area offibed support for the, paper ;between the feed rolls andthe knife that a said paper, although heavily: coated and treated the s ame' as thelp-resser feet. :have found in practice 'thatwhen wood 1s therefore, liable to shift askew, will-have no such distance to travel tohave an o'ppor-r tunity to move in other than a straight direction. Said rolls are'preferably of wood soaked in paraffin oil, no wax from the paper 'will adhere thereto although the paper is subjected. to considerable pressure between" the rollsfand between the presserfeet and strips b V f 7 The rolls are driven 1 continuously by means of suitable intermeshi'ng pinions e, f,

a pinion g, and a gearh oarried' by shaft 66, the intermittent action of the" rolls on V thepaper being obtained by raising the roll d from the roll-'0 while the" knife-is acting and. then lowering the upper roll while the knife andpresser feet are raised; "Vi e will now describe the means illustrated for raising; and lowering the'roll d.

L 'lhe roll d is mounted in bearings carried;

50- by arms i-o-f a frame 74 having an. adjustable connection Z with a 'pivotrod-mr; A rod 89 extends through theiframe, By raising and loweringtherodSQ the frame is oscillated on its: pivot mto feed roll (Z.

that the knife; as itmoves raise and lower the upper so far as the subject matter of'this application is concerned, the means for effectingv intermittent feedof the strip of'paper might,

be of any suitable construction. The ma chine in which we have embodied the; present improvements is similar ,to those explained J;

in the patents, above referred'torlnthe ac companying drawings Figure 2is-si-milar to Figure 7 of the Patent'1',25 3,63 6; In said Figure 2; arms 90 of a 'roelr'shaft 9 1 carry the rod 89, and one of the arms 90h'asa pin 112 which entersa cam slot 110 in a plate 107 pivotally supported at 108,- A link 106. is pivoted at 109 totlie-lower' 'end'ofthe J plate 107- and at its other end is pivoted at 95 to a jointed lever 94, 98." Said lever is mounted to have an endwise as -well as tilting movement.v At its outer; end it has] a feeler-93 under which leaves! pass to be wrapped as explained-in the patent referred to, and at its inner end-ithas a tooth 103 adapted to be engaged by a toothedirib 102 carried by a disk vrsecuredito shaft; 66;

When the rib 102 engages tl ietoothed tip 103 and moves the lever endwi'se, the link 106'transmits movementto the plate 107 so that the cam slot 110 of the latter permits the arms 90.to lower "the rod 89 whiclil'in turn, lowers the rolld and causes the strip.

of paper to be advanced. The swinging of the plate 107 in. the otherdire tion to cause its cam 'slot toefl'ect lifting'of the rod 89 is i effected'by the mechanism shown'in Figure 2 but not necessary to-describe hereinfas it is fully explained in the patentre ferred toi As has been stated, any mechanism for-effecting alternate con-tact and separationr'of the rolled e may be substituted forthat. indicated in the present drawings.

We have found that-when heavy waxed paper 15' employed, there: is a tendency toward an accumulation of-iwax 'on the; knife,

especially on that side of it toward the feed rolls orthat side which-is flush or in. aline. ment with the extreme cutting edgef To prevent such an: accumulation we keep that side or surface lubricated; as with paraffin 01-1. A. conven-1ent..,wayhas beene n-practice; 1

to mount a stationary bar'o having a;hor1- zontal' groove or chamber .in' which an: oil

soaked fillingp is confined in: such. position I rubs over said filling;

up and down, r

'We do not limit ourselves to the employa v ment of rollse d of oil-soaked, wood; As

indicated in Figure 3,".said rolls may .be

-metal' having means for lubricating them ripheral surface of: one, or bot hf' of them, such meansv comprising a trough .q; hwingafilling -2 of oil-soaked material;- said trough;

beingpivoted at s andqhaviirg auweighted arm 6 so as to hold the fillingragainst the roll 0. A similar trough might-be; arranged in juxtaposition to theup-per roll d, we

have found that sufficient oil. is transmitted When the rolls consistof woodas de-' scribed in connection with Figure 1, the

bodies of oil-soaked wood furnish the means for lubricating the peripheries of the rolls.

As illustrated in Figure 1, thelower roll 0 is so positioned relatively to the aperture in the bed 88 above it, that the upper portion or" the periphery of the roll is substantially flush with the upper surface of the bed. And the aperture in v the bed is of such limited area that the edge thereof onto which the paper passes causes-the paper to be peeled off from the roll without sticking thereto, even it the lubricant is exhausted or omitted. Having now described our invention, We claim:

1. In a machine for feeding and cutting waxed paper, a bed over which the paper travels'while being fed, upper and lower members between which the paper is moved when travelling over the bed, the lower memher being in position to support the paper and the upper member being movable to intermittently coact with the lower member to grip the paper, the said lower member being provided with means for resisting tendency of the coating ofthe paper to adhere thereto resulting from the gripping action of the upper member thereon. r

2. In mechanism for converting a strip of waxed paper into-sections, a cutter, means for feeding the strip to position to be operated upon by the cutter, and means for applying a lubricant directly to the cutter to prevent adhesion of wax thereto.

3. In mechanismtor converting a strip of waxed paper into sections, abed, a cutter,

means for intermittently advancing the strip over the bed to position to be operated upon over the bed toposition to be operated upon by the cutter, and intermittently operative lubricant-carrying pressers for holding the 7 paper during the operation of the cutter, the

bed having lubricant carrying areas below. said pressers.

5. Mechanism waxed paperinto sections, comprising a bed, intermittently operative lubricant-carrying rolls for advancing the strip over the bed, a cutter, means for lubricating the cutter, and intermittently operative lubricantcarrying pressers for holding the paper during the operation of the cutter.

6. In a machine for feedingand cutting waxed paper, a bed over which the paper is fed, said bed having an aperture, a roll 10- catedin said aperture with its upper peripheral portion substantially flush with the upper surface of the bed, and an upper member movable toward and from the roll.

7. In mechanism for converting a strip of waxed paper into sections, a bed, a cutter, rolls in close proximity to the cutter to draw for converting a strip of thestrip over the bed to feed it to position to be operated upon by the cutter, means for 1 lubricating that surface of the cutter which is toward said rolls,and means for inter.- mittently pressing the paper on that portion of the bed over which the paper is drawn by the rolls.

8. Mechanism for converting a strip of waxed paper into sections, comprising a bed, a cutter and pressing means intermittently movable perpendicular to the bed, and intermittently operative rolls for drawing the paper over the'bed toward the cutter, said rolls being located close to the cutter and between it and the said ressing means. 7

In testimony whereo we have afiixed our signatures. Y

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