US1545443A - Paste cut-out - Google Patents

Description

July 7, 1925.

C. E. OMAN PASTE CUT-OUT 1923 2 Sheets-Sheet 1 Filed June l'18 INVENTOR FIRL E. Orr'rn/ BY JW... J/

ATIQRNEXS July 7, 1925. 1,545,443

C. E. OMAN PASTE CUT-OUT Filed June 18, 1923 2 Sheets-Sheet F'Q-- 2o 20 ?2 22 I! I 24 ll f `v I l 1- *r Y L i liti. 4,

35 -L a? 35 4o /9 361 2f" 16 4 INVENTOR CHRL E. UMH/Y 36 F BY :Qi L) Mm/m 57 ATTORNEYS Patented July 7, 1925.

UNITED [STATES PATENT OFFICE.;

CARL E. 0MAN`OF SOUTH vkWINDIIAM, CONNECTICUT, ASSIGNOR T0` THE SMITH &;

WINCHESTER MFG.' CO., 0F

CONNECTICUT. A

SOUTH WINDIIAM, CONNECTICUT, ACORPORATIONOF PASTE CUT-OUT.

y Application led .Tune 18, 1923.` VSerial No. 646,090.

To all fwromit vzag/conccrnf p Be it known that I, CARL E. OMAN, a citizen `of the .United States of America, residing at South Windham, inthe county of findham and Stateof Connecticut, have invented certain new and luseful Improvements in Paste Cut-Outs,A of which ythe fol lowing isa specification. A f i My invention relates to ba'gmaking machines, and particularly Ato features which are commonlyreferred to in the tradefas paste cut-outs. The vobjectof my invention is to provide Va machinein which objectionablefoulingmof parts ,by the paster on interruption of the blank feed is obviated. Specifically, the, invention A'contemplates theassociation with the rotary paster, of a pneumatic backer and related devices, the pneumatic backer taking Athe place of the usual backing roll to support the blank'during its engagement the paster.

In the accompanying drawings- Fig. 1 is a broken 4side elevation of so' much of a bag-making machine as is necessary to illustrate ,the application of my invention thereto; 4

Fig. 2 isa `partial. broken side elevation ofthe same showingthe paster` in a different position; y v

Fig. 3 is a section on the line 3-f-3, Fig. 1;

Fig. f1 is a side elevation of one of the bag guides; and

guides. y p

The invention is applicable to various bag-making machines, and is not limited to a bottomer of the type shown to illustrate a practical embodiment thereof. Various modifications of detail maybe. readily made without departing `from the underlying conceptions of the invention. f y

As here shown, the machinel comprises a frame 15 upon which are supported various elementsfor operating upon the bag blank 16, including the rear cylinder 17 andfolding roll 18 between whichthe blank passes to the paster table 19. The side margins of the blank V16 are grippedas usual between pairs of4 belts 2O` 'and 21 which pass respectively around pulleys 22 and 23. On` the shaft 24 ofthe pulley .22 is a paster segment 25` adapted toreceivetadhesive from forced by a fan 32. "The latteris driven `by an electric motor 33 arranged on the cross beam 311 of the frame. It will be noted that the table aperture `29 is located between the points at which'the 'side' Inargins ofthe blank are gripped, throughbelts V2O and21, by the pairs of pulleys 22 vand 23, and that the blank `is consequently held `firmly at its opposite sides as ittravels over the aperture. V t

In operation, the portion of the blank lying kover the aperture in the table is supported and pressed by the blast againstV the paster 25 with sufficient force to take up theadhesive from the latter. The wind box `31 thus in effect forms a pneumatic backer or support for the blank, which takes `the place of the usual backing roll. kObviously an interruption of the blank feed causes no fouling, since thereis no backing roller engaged by the pasten'during Aits working travel. Loss of bags through fouling, on

,the lrenewalof the blank feed, is" thus ob- Y viated. t Fig. 5 is a plan view of another of. the ,1

.iwhich extend from the cylinder 17 above the table 19. The'` center guide 36 `passes across the blast aperture'29fan'd isnarrowed at 37 linthe area which overlies the aperture, and is accommodated by channel 38 in the pastel' `segment V25. The lateral guides 35 are formed from spring strips bent back upon'themselves, and theiry freeends 39 eX- `tend into proximity to the folding roller .18. These severalguidesserve to prevent sol iiuttering of the blank in the blast from the wind box, while the free ends 39 of the lateral guides 35 engage the forward end of the blank emerging from thernip ofthe rolls 17 and'18 and prevent it from being blown upward out `of position. Thelateral ,guides extend inthe direction of thefeed approximately to'the nip of theblank by flutter of the blank as it is fed from the rolls, said guide means comprising a pair .of spring strips arranged ad]a cent opposite side margins of the blank, and an inter- I mediate guide rod extending across the aperture in the table, said guide rod having a constrcted area in the region of thel aperture in the table.

8. In a bag-making machine, an apertured table, a rotary paster and a pneumatic hacker cooperating at the aperture in the bridging the aperture.

9. In a bag-making machine, an apertured table, a rotary paster and a pneumatic backer cooperating at the aperture in the table, in 'combination with spring Wire supports bridging the aperture.

10. In a bag-making machine, an apertured table, a rotary paster anda pneumatic backer cooperating at the aperture in the table, in combinationV With spring Wire supports extending across the aperture in the direction of the blank feed.

In testimony whereof I have signed my name to this specification.

CARL E. OMAN.

table, in combination with Wire supports n

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