USRE7273E - Improvement in paper-bag machines - Google Patents

Description

3.Shg-ets-Sheet '1 C H. MORGAN. Assignor by mesne assignments. to THE UNION PAPER. BAG MACHINE COMPANY;

PAPER-BAG MACHINE No. 7,273. ,Reissued.Aug. 22, 1876.

0w. Jim/ra He zfan anzzizerja 3 Sheets.-She et 2. C. H. M ORGAN. Assignor by mesne assignments. to THE UNION PAPER BAG MACHINE COMPANY.

PAPER-BAG MACHINE.

Reissuefl Aug. 22, 1876.

3S-hae'tsSheet.3. c. n. MORGAN. Assignol by mesne assignments. to THE UNEQN PAPER BAG MACHINE COMPANY.

PAPER-BAG MACHINE. No. 7,273. 'Reissued Aug. 22,1876.

it JL' is a plan of the same.

U D-"STA ES PATENT OFFICE- CnARL s H. MORGAN, or PHILADELPHIA, PENNSYLVANIA, ASSIGNOR, BY MESNE ssieNMENTs, TO THE UNION PAPER BAG MACHINE COMPANY,

Or'sAME PLACE.

VIMPROVEMENT m PAPER-BAG MACHINES.

Specification forming part of Letters Patent No; 37,726, dated February 17, 1 SG3; reissue No. 7,273, dated 7 August 1876; application filed July 12, 1876.

To all. whom it may'concerm' Be it known that CHARLES H. MORGAN, of the city and county, of Philadelphia, State of Pennsylvania, (formerly ot'Olinton, in the county of Worcester, State ofMassachusetts,) did invent a new and Improved Machine for Mai;- ing Paper Bags; and the following is declared to be a full, clear, and exact description of the same, reierence being had to the accompanying drawing, in which- Figures 1 and 2 are opposite side elevations of a machine with my improvements. Fig. 3

gitudinal-veriical section of part of the machine. Fig. 5 is a face view of the knife for cutting the bags from the roll ofpaper, and an end view of its shaft.

Similar letters of reference indicate corresponding parts in the several figures.

The invention relates to that class of paperbag machines in which the paper from a roll, as a continuous sheet or web, is formed into a flattened tube, and afterward cut into proper lengths to form the bags, such machines constituting the subject-matter of Letters Patent granted to B. F. Rice, April 28, 1857, and reissued March 6, 1860.

The improvements consist in so organizing the severing device or cutting-off blade and its operating mechanism, in connection with the feed-r0lls and support-ingbar, as to admit of a constant instead of an intermitting or variable movement of the feed-rolls, thereby accomplishing a continuous movement of the paper; also, in an'improited mechanism which serves to hold the paper web or tube while being severed; also, in the mechanism for pasting and folding the bottom of the bag, and in details of' construction which simplify the machine and'greatly facilitate the manufacture of bags.

To enable others to make and use my invention, I will proceed to describe its construction and operation.

01 d are the standards which support the tube-supporting bar, or former, c, and contain bearin gs for the shaft f. 0 g are the feedrolls, of which .0 has its hearings in the bar 01 former e, and. derives its motion by surface- Fig. 4 is a central loncontact with g, the latter having its bearings in two standards, b b, and constituting also the main shaft of the machine. The roll of paper is placed on the shaft f, and is progressively bent or toldedaroulni the bar or former e by means of guides as it drawn forward by the feed-rolls 0 g. The paper, on reaching the feed-rolls, has been folded, and had its edges pasted togethei, forming a complete tube, flattened nearly together. p

The tube-forming mechanism which I have thus far described .is the same as is fully described in the specification of the aforesaid Letters Patent of B. F. Rice, except that the feed-rollers o 9 have a constant motion.

In Riccs machine the feedrolls have an intermit-ting or variable motion given them by a complex combinationof cog-wheels, links, and a crank, whereby the paper is caused .to stop, or nearly stop, not only while the severance or cutting off of the portion of the tube to form the bag is performerh'but while the cntting-ofl' blade is retreating whereas, in this machine, the severing device or blade does not retreat, butrevolves with a constant motion, and is so arrangedas to describe so slight ainangle of its revolution while severing the paper that the Web or tube is not sensibly im- 'peded in its progress, but allowed to be fed forward constantly by the feed-rolls.

I will now proceed to' describe these parts 'of the 'machine' in detail: I) is a gear-wheel on the shaft 9, gearing through a stud-gear, u, attached to one of the standards b I), with a gear-wheel, e, on a shaft, 8, arranged parallel with g, in hearings in the standards b b, and therebydriving the said shaft .9, at the opposite end of which is a mitergear, 0 engaging with a miter-gear, d on the cuttershat't p and thereby imparting to the latter a constant rotary motion. The said shaft 19? has secured to it an arm f carrying the cutter-blade or severing device 7", and it is arranged in fixed-bearings at one side of the machine, with its axis in a plane perpendicular to the axis of the feed-rolls, but at such an inclination that the plane of revolution of the blade shall be such ail-angle with reference to the tube or paper-supporting baras to sever 2' was the tube of paper with overlapping ends of sufiiuient length to form the bottom of the bag. The end of the bar 0 forms afixed blade, againstwhich the upper'half of'the tube is severed, and below it is the fixed blade h, against which the lower'half is severed.

Just before the tube is cut it is seized by a pair of rolls, m k, which hold it taut'while it is'being out. These rolls are" arranged one above the other and parallel with the feedrolls, and are geared together, and with a third roll, 1%, arranged parallel with them in front of the roll m by gears m n, and all have their bearings fixed, except so far as it may be necessary for k and n to move toward and from m, to enable them to adapt themselves to difi'erent thicknesses of paper. The said rolls derive a constant rotary motion from the gear 0 on the shafts, through two stud-gears,

t and 'v, of similar size to e attached to the framing, the latter gearingwith a spur-gear, m on. the roller m. v

The pair of rolls m k projectthe severed portion of the tube over the edge of a blade, 75*, a sufiicieut distance to formthe bottom lap, when the said blade simultaneously pastes and folds the lap by pressing it between the rolls m' n, which seize the bag, press the lap together, and discharge the bag from the machine. The said blade takes the paste from a stationary box, 3', arranged under the roll n, and is operated to perform the folding of one bag and take a fresh supply of paste for the succeeding one, by being attached to the arms 3 y of a rock-shaft, w, whichis arranged in fixed bearings, and derives the necessary motion'from acrank-pin, t attached to the gear '0, such crank-pin working in a slotted arm, w, secured to the said shaft.

' It maybe observed that the above-described mechanism for folding and pasting the'bottom;

of the bag operates without any such oscil-' lating movement of the folding-rolls .as is given in Rices machine.

Having thus fully described the invention,

what is claimed as of the invention of GHARLEs H. MORGAN isp v 1. The combination, with a revolving severing device, substantially as described, of a stationary paper-supporting plate, h, and tension or holding rollers.

2. The combination,'with.a paper web or tube supporting device, of a revolving severing device and devices for holding the paper web taut while being severed, all substan-v tially as described.

3. The combination, with a paper-tube-supporting bar, of a revolving severing device and a pair of holding-rollers, as m k, all-substantially as described.

4. The constantly-moving feed-rolls, acting in combination with a web'or tube supporting device, all substantially asdescribed.

5.'A revolving blade, in combination with tube-supporting bars or plates, to sever portions of tube with overlapping ends, alLsubstantially as described.

6. A pair of rolls which hold the tube while being severed, in combination with a blade, which pastes and folds the tube and forms the bottom of the bag.

In witness whereof THE UNION PAPER; BAG MACHINE COMPANY, by EDWIN J. HOW'LETT,

president, have hereunto set their hand.

THE UNION PAPER BAG MACHINE 00.," By EDWIN J. HOWLETT, Prat.

Witnesses:

H. T. Mnnson, M. B. 'PHILIPI.

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