US820071A - Paper-bag-making machine. - Google Patents

Description

PATENTED MAY 8, 1906.

T. P1' SMITH. PAPER BAG KING MACHINE.

APPLGATIQK FILED 11711321. 1905.

4 SHEETS-SHEET 1A MME .5

PATENTE!) MAY 8, 1906 fr, Y. SMITH. Pffg Bxmef MACHINE.

SHEETS-SHEET 2 No. 820,071. PATENTED MAY 8, 1906 T. P. SMITH.

PAPER BAG MAKING MACHINE. Hummm FILED 1mm 21. 1995.

4 SHEETS-SHEET 3 No. 820,07K PATENTBD MAY 8, 1906.

I. I. SMITH. PAPER BAG MAKING MACHINE.

APLATIDH FILED JUNE 21. i985.

4 SHEETS-SHEET 4.

at one end a rollof paper which 1s about NITED STATES PATENT OFFICE.

PAPER-BAG-MA No. 820,071. Bpecication of KING MACHINE.

Letters Patent. Patented my 8, 1906.

Application flied June 21,1906. Serial No. 266,316.

To all whom it may concern,.-

Be it known that I, THOMAS PARKER SMITH, pa er manufacturer, a 'subject orHis Majesty t e King of Great 'Britsinlndwrcend, residing at Ree Gehi ChesterRoed, Erd# ington, in the county of IWarwick, England, have invented new and useful Improvements in Paper-Bag-Making Machines, of which the following is a specification.

This invention has reference to machines for making thosepaper begs which are of comperativeiy large size, such as 'millinery and leur ba s, which are made of cappeper or ot er t paper and which, owingto the thnness of the paper and the comparstively large size of the bags, have heretofore been dicult to make b nuechilnary.W By constructing the bags and7 the machines for there in accordance with this invention I am enabled to kproduce the large-size begs much more quie y than heretofore and with practicaily no waste and without a seam along the center of the back of the ba which is so objlectioneble when the front o the bag has to he printed.

carrying out my invention I em lo a thin-pa er-bag-ma machine of thwdlk known d in which t e thinaper begs are made continuously from a ro of a er and' are cut ed' and one end to form tige ottom is folded' and pasted and the pa er begs passed round a drying-cylinder, so ihat'they; are delivered by the machine finished and dried ready for use. In this machine' for; making these ordinary thin-ps. er bags the Width of the roli of paper from W 'ch the be are formed is rat er more than twice t e' width of the finished bag, as the 'side oigto'gsf of the aper are by the machine fol ed over a. divi -plate and their overlap ingedges pasted together, fo a iongituinal seam alo the center of the at paper tube which by t e machine is divided into lengthsLand one end of each length is ested and oded over to form the bottom o the beg. To this machine Imake certain additions alterations, and improvements, so as to enab, e it to make largepa erbags lnaccordance with thisinvention. v he said machine which I employ has one and one-half inches, more or less, Wider than the Width of the finished bag, and this paper as it is unrolled from the roll Y under rollers and alongand throughV guides, so that both its edges are turned over onto threequarters of en inch, more or less, and these turned-over ed es ere ested by means of ordinary paste-ro ers. he ordinary dividing-plate is situated, es is usual, ebove the continuous length of oper and underneath the folded edges of t same. Above the continuous length of pa er from the rst roll and in front o the bri ge which carries the dividing-plete I provide another continuous roll of pa er, Winch by guide-rollers or other means 1s iisd in and above and onto the peper from the first roll, and both papers travel alon the machine tother at the same spec The Width of t s peper in the second roll is the same or very slightly less than the Width of the paper in the first roil after its two edges have been folded down, as sfereseid, and es the two pepers travel along the paper from the second roll is pressed down onto the turned-over and pasted edges of paper from the rst roll, thus formin the necessary fiat peper tube of which t e paper from the u per roll forms the top side and the pe er om the first rolls forms the bottoni'si e, and as this paper tube travels along it is divided into lengths and the l the formed into bags b the ordinary mechanism of the machine, W 'ch forms no part of this invention.

My inrerntion is illustlgtld by the eccompen am on W c iyirge 1 is alin of s. thin-peper bag made by m improved machine. 2 is a sec tiene edge elevation of the same on line X X lof 1. Fig. 3 shows a portion of the divid-H mg'-p ate part of the machine and the pV Ytions of the two continuous iengths of pager es they moet and are fixed together in the Vmachine to form the thin-paper tube, which bythe machine is out up into lengths to form begs, as aforesaid. Fig. 4 shows the same bag as Figs. 1 and 2, on a. smaller scale, with the sides partly unstuck and separated end the bottom unstnck and turned up, so as to show the construction ofthe bag. Fig. 5 is e side elevation.; of so much of the ordinary thin-paper-baglnmking machine as is necessary to illustrate my invention, this view showing the nechine altered in accordance with m inventioniw dis a ien of the oirthe machine' shown by sis an end view of the same.

he same reference-numerals indicate the same parts 'in all tlie ililgures.

1 is the iirst Vseid ro of paper, mounted on 'g. 4, and

the body of the paper for a. distance of about the usual spindle 2 in the usual way at one end of the machine-frame 3, said spindle being carried by brackets 4, which are fixed to the end of the machine-frame. The continuous pa er 1 from this roll asses underneath a ro er 5 and then up an over a roll 6 at the top of the machine-frame, and in its assage from the roll 5 to the roll 6 the two e ges 7 8 of the aper l are by the ordinary iingers 9 10 fol ed over for a width of about threequarters of an inch, more or less, along each edge. The ordinary paste-rollers 11 12 take up the paste in the ordinary way from the rollers 13 and deliver the paste onto the folded-over edges 7 8 of the paper 1 where said p'aper passes over the roller 6. 14 is the 'ordinary dividing-plate, carried on the top of the machine-ta le in the usual way by having a stem 15, which is carried by the bridge-piece 16, and this dividing-plate 14 is immediately ove the continuous len th of paper 1, but is underneath the folde -over edges 7 8 of the same, as will be clearly understood by an examination of Fig. 3. 17 is the second continuous roll of paper, which I provide in front of the bridge 16 and at a convenient distance above the dividing-plate 14, this roll of dpaper 17 being carried by anordinary s in e 18 in the' usual way by side bracke 19 20 or by other convenient means from the machine-table 3. The continuous lenlgth of pa er 17 is carried down fromthe rol and un erneath the cross-roller 21, (or there may be two or more of these rollers 21,) which press the continuous length of paper 17 onto the turned-over and pasted edges of the paper 1, thereby sticking the same together and formin the flat paper tube, of which the top side 1s formed by the paper 17 and the edges and botttom side are formed by the aper 1. The parts of the machine for divi g this thin-pa er tube into lengths and for turning over an asting the bottom and otherwise finishing t e cut-off portions into ba s and the other necessary "arts of the macghine are well known in mac es of this kind, and therefore do not require to be herein described nor illustrated.

The ba s when made by my improved machine have the appearance shown by Figs. 1 and 2 by whic it will be seen that the top side of the bag (marked 17) is formed by a portion of the roll of aper 17 and the bottom side (marked 1) is ormed by a ortion of the paper-roll 1, the edges 7 8 of W 'ch are folded over and pasted to the edges 24 25 of the other aper 17. The bottom 26 of the bag is forme in the usual way by the end 22 of the under side 1 of the ba and also the end 23 of the u er side 17 o the bag being pasted and fol e over together u on themselves, the end 22 of the bottom si e 1, which has the folded edges 7, 8, being made to slightly overlap,s the end 23 of the up er piece o palper17, so that when they are Iolded u on the ody of the bag, as in Fig. 1, to form t e botto secure by Letters tom 26 ofthe bag the folded-over part 22 of the lower piece 1 will then be at the top and will be pasted and stuck to the bod of the ba (at 27, Fig. 4,) inclosing the fol ed-over en 23 of the u per piece 17, and thus a proper bottomv is ormed, which would not be the case if the end 22 did not overla the end 23, as in that case the end 22 wou d not be pasted. This construction of the bottom of the bag by the machine is well known, and I make no claim to it except in combination with the formation of the bag from the two continuous lengths ofpaper 1n the said machine, as above described.

It will be seen that when the said thin-paf per bags are made from two continuous rolls of pa er worked to ether in the machine in accor ance with this invention they can by changing the dividin -plate for a wider or a narrower one and a Justing the other parts of the machine to suit be made of any desired width, because no matter what the width of the bag may be there is only a small portion of each edge of one of the continuous pagers to be folded over the dividing-plate an pasted instead of a portion of the pa er havin to`be folded over at each side equa to more t an half the width of the bag, asis the case when the flat paper tube for makin the bags is madefrom one continuous piece o paper with the sides folded over and for the seam along the center of the bag in the usual wa What claim as mly invention, and desire atent, is-

1. In a paper-ba -making machine of the kind herein referred to, the herein-described improved means for forming the continuous pa er tube which by the machine is divided an formed into the bags, consistin of means for su porting two continuous rol s of aper one ofpwhich 1s somewhat wider than t e reuired aper tube and bags and the other is a out t e same width as same, means for carrying and feeding the papers from said rolls, means adapted to fold over the two edges of the wider paper, paste-rollers adapted to paste the two folded ed es, a divi late and means for carrying t e same, sai viding-plate being situated above the wider paper and under the folded and pasted edges of the same, means for feeding the continuous paper from the narrow roll and for pressin the same onto the folded and l1pasted edges 0 the pa er from the wider ro substantially as set orth. y

2. In a paper-bag-making machine of the kind herein referred to, the combination with the dividing-plate and means for carrying the same, means for sup ortin a paper-rol the continuous aper o whic travels underneath said vidinglate, means for fol the edges of the con uous paper said folde edges passing over the e es of the dividingplate, paste-rollers whic paste the sald ICO IIO

folded edges, means for suppoting a second In testimony WhereofSI have' signed my continuous rol of pa r abovethe dividingname to this speoication in the presence of 1o plate ad meins for edin and prssing th two subscribing Witnesses.

a er @In t e secon ro onto t e este n folded edges of the per from de first THOMAS PARKER SMITH rol thereby forming a t flat paper tube `Wtnesses: for the purpose and in the manner substan- CHARLES BoswoRTH KELLEY tially es set forth. THOMAS J OHN ROWE

Images