US1459054A - Wrapping machine - Google Patents

Description

June 19, 1923.

R. S. HATCH WRAPPING MACHINE Filed June l0 1922 /N VENTO/e.

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Patented June 19, y1.923. e

RAYMOND s. HATCH, or. NUTL'EY, NEW JERsEY,' AssIGNoR 'ro THEHAMMERSLEY MANUFACTURING COMPANY, lor NEW YORK, lN. Y., ACoRPoRATIoN 0F NEW JERSEY. e

1,253,636 of January 15, 1918, and is direct' ed to improvements in' the vertical chute yor passageway through whichthe'bread or l p `7 nd 8 indicate thetwo walls'ofthe vertiother article to be wrapped lifted during one stage of the wrappingV operation. l

One wall of thevpassageway or chute of the lpatent above referred lto is provided with a series of vertically extending slots to permit of the passage of the lifting or elevating kfingers by which the loaf' is raised and' I have found that these slots are more or less objectionable under certain wrapping conditions causing wrinkling and sometimes fracture ofthe;` paper. wrapper V'and asa matter of fact Apractically prohibit the useof a self-sealing waxed paper. It is vthe purpose, of the present invention to provide a chute in which theslots in thewall thereof are automatically closed olf behind the lifting lingers so that theV side of the plate below the fingers andv neXtthe article-being wrapped is 4smooth and unbroken, thereby preventing tearing or wrinkling the paper wrapper as the same is elevated,` draped' over the topof the loaf or other articleA being raised in the chute. l v

The machine to which my invention is applied is vof a well knowntype. and h'enceI will notillustrate the'same in the accompanying drawings but will merely-show my improved chute in detail with theplifting fingersI and. associated mechanismy shown more or less diagrammatically.

In the accompanying drawings,.--,v l Fig. l shows myinvention in 'part sec? tional endv elevation;` and .e

Fig. `2 is a view taken substantially on'the line 2-2 of Fig. l.

I Referring to `drawings, in. detailfl-l` lSl HAifcH,-.

cause a I e ,to a lhorizontal position, fand as the chain '12 j 'WRAPPING'MACHINE Y Appiicatiop sied June io, 1,922. i seaiNq. Senasa.

designatesna drum over vwhich thepaper coni.

I'stituting the .wrapper is fedgthe paper, passing underA a series of rolls 2 and 'then over a lbed 3.; Therolls 2 arey mounted upon andvrotate, with a shaft. Theshaft Lismount-A,

ed at its ends inarms 5y .ofa' vrookshaft` 6, means being provided Vfor rocking vthe j shaft so that when the rolls@ bear upon the paper the .web will beadvanced. to the'vsevering mechanism., f' Preferably the'ap'ertures( in the rolls 2 `are larger thanlthe shaft 4 'to permit of a "slight movement oftherollshn the f Shaft to compensate for anyl variation in the thickness of thehpaper f.

calpassagewayfor chute to which my invention is specifically directed Athe 'wall' 7 being for the purpose of lifting fthe article.` to b'e *wrappedv vertically inthe .chute 'composed' of the side l 'wallsw? and. 8, the article being raised by these `fingers beneath the paperfed facross the bed 3.l This wrapper as thelarti- 'cle is elevated is foldedl down the sides' of the article bythewalllof thechute' as will be apparent. e, l y' v The fingersy 11 are carried by a chain 12 driven b v" a sprocket wheel 13 'and'each lshaft 1li by` which fthe fingerj is attached to-the chain carries an rarm 15 carryinga roller 16 is provided with an offset 18y adjacent the ttopfthereof and followed yloyfthe roller :16 to finger 11 to' rotate about thefshafb 14:

so j

'traveling in a cam track 17.' This camtraclt v continues its movement the rollerl followingthe cam track will gradually carry the fingerendwise while still in a horizontal po- .sitionout of its slot 9 or y`104 in theplate 7. .p As so far described it-will be seen that the l fingers 11 are elevated, a pair at a time, it being understood thatit ispreferable lto have two or' more fingers upon eachshaft 14j; the

fingers will raise the articleto zbe' wrapped 1 in thechute or passageway providedbythe plates 7) and 8, thepaperwrapper inst prior tothe commencement ofthe upward movenient.` ofthe article -to be wrappedhaving feo been fed forward over the top of the article to be wrapped so as to be folded about the sides thereof as the article is lifted. As the article to be wrapped is elevated to its upward limit the fingers 11 will be tipped so as to be no longer a support for the article and are retracted out of the slots 9 and 10.

It will be understood of course that the article to be .wrapped is thereafter received by other supporting apparatus such as shown in the Sevigne and Arnold patent above referred to and carried through the remaining wrapping and sealing operations. This feature has nothing to do with the present-invention. i

In order that the paper wrapper may not be torn and creased by the slots `9and 10 I rovide means for closing these slots off after the fingers 11 have traversed them a certain 'distance and this mechanism will now be described. y

From Figs. 1 and 2 it will be seen that the inner side of the plate 7 isr provided with two curved recesses 18 embracing the slots 9 and 10. These recesses are identical and their associatedv mechanism and hence but one will.

its outer end a lever 21.V Attached to the end of this lever and toa fixture 22A is a coil spring. 23 `always under tension and adapted to holdthe sector plate or gate 19 in closed position, that is to Vs ay in position to close off theslots 9 and 10. This plate or gate lies Vflush vwith the inner side of the plate 7 so that the side of the plate 7, in other words the lwall of the chute is smooth and Aunbroken lwith the gate closed.

In order that the gate may be properly guidedin its swinging movement I provide the-.same with guide blocks 24, one of which 1cooperateswith the lower part ofthe slot 9 and an offset continuation 25 of this-slot .which is concentric with the are of the recess 18, the `other cooperating with a slot 26 also concentric with the arc .of the recess 18.

As above pointed out, two or more recesses and twov 0r more slots are provided in the l plate 7 .and there is ofcourse a plate or gate 19 Afor each slot.

,v From vthe yforegoing itwill be seenv that initially the ,inner face of the plate 7 4 is `smooth and unbroken from the top or arc of .the gate `19 to the bottom edgey of the plate i7.

Inthe operation of the machine as the fingers 11 Strikethe under side of the gates 19 7thesaine vwill be4 swung about their centers to permit ofthe fingers passing up through the slots, vthese plates, however snapping backV to their orginial positions as soon as the fingers `have passed, so that the paper wrapper as it is carried upwardly by the article to be wrapped. will be dragged along a smooth surface so far as that portion below the bottom of the article is concerned, thereby eliminating the possibility of tearing the wrapper or wrinkling the same by the slots 9 and 10. s

It is to be understood that my improved forinof slotted chute Side-wall may be varied within the scope of the present invention, the present invention being broadly directed to the provision of means .for closing off the elevating finger slots after the fingers have entered the slots so as to afford a i smooth surface'along which the paper wrapper is dragged.

I claim: *y f 1. In a wrapping machine, apair of plates spaced from each other to form a passageway orchute, elevating fingers for raising an article' in lsaid chute, one of said plates being provided withislots for the passage of said fingers and gates for automatically closing said slots. I y

2. In'a wrapping machine, a chute, elevating fingers `for raising articles therein, one of the walls of said chute being vslotted for passage of said ,fingers and means for automatically closing said slots.

8, Ina wrapping machine comprising a chute, the combination of a slotted plate constituting one wall of said chuteand means `for automatically closing said slots at predetermined intervals to convert the'face of said 'plateadjacent the `interiorof the chute into a lsmooth unbroken surface lthroughout a portion of said slots. n

4. In a wrapping machine, the combination of a chute, elevating fingers for raising articles in said Chute, one wall of said chute lbeing provided with slots for ther passage of said fingers and gates one face of which lies flush with the inner face of lsaid wall for closingoff lsaid slots after the passage .of

the elevating fingers therethrough.

5. In combination, a slotted plate, a recess therein embracing the slot in said plate, va gate in said recess one face ofsaid gate lying flush with one face of said plate and a spring for actuating said gate into position to close offI said slot. v

6. In combination, a `slotted 'plate provided with .a recess embracing the slot in the plate, a gate pivotally mounted on 'said plate and lying within said recess so that one face `of the gate lies flush with ,one face of the plate, said plate being provided with arcuate slots and guiding blocks carried by said gate and riding in said arcuate slots for guiding the movement of said gate.

y 7. In a wrapping machine,l the combina tion of a pair of spacedplates forming a passageway or chute', elevating fingers for raising articles in said chute, vone of said plates'being slottedr to ypermit the passage of said fingers through the chute, a gate set into said slotted plate Aand pivotally carried thereby for closing off Vthe slot in said plate-v v and arranged to be raised bythe elevatingV lingers as saidingers pass through the slot in said plate, and means for returning said gate to slot-olosing position automatically, saidgate being arranged to lie flush with the aoe the slotted plate adjacent the interior of the chute so that this face ofthe slotted plate below the fingers pI'eSeIllS a Smooth un; my' i l i l I broken-surface. 2 v i, This specification,signed'gthls 8th dayl of June, 1922.

, RAYMOND s HAToH.y

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