US1102015A - Wrapping-machine. - Google Patents

Description

J, G. DBNIS. WRAPPING MACHINE. APPLICATION FILED HARA, 1914.

1,102,015. Patented June 30, 1914,

a SHEETS-SHEET 1.

Qh/Ma W J. G. DENIS.

WRAPPING MACHINE.

APPLIOATIOK FILED MARA, 1914.

. JOHN G. DENIS, OF NEW ORLEANS, LOUISIANA.

WRAPPING-MACHINE.

Specification of Letters Iatent.

Patented June so, an.

Application filed March 4, 1914. Serial No. 822,335.

i To all whom it may concern Be it known that 1, JOHN G. Dams, a

Orleans, in the parish of Orleans and State of Louisiana, have invented new and useful Improvements in Wrapping-Machines, of which the following is a specification.

My invention relates to certain new and useful improvements in wrapping machines, and particularly to a machine for forming wrappers designed especially for use in wrapping loaves of bread, the primary object of the invention being to provide a simple, efficient and comparatively inexpensive construction of machine whereby Wrappers may be successively formed from a sheet or web of papersupplied from a roll.

A further object of the invention is to provide a wrapper making machine whereby wrappersof the prescribed size may be successively formed, each in a single and complete operation, the wrappers being supplied with paste along both of the longitudinal and one of the transverse margins thereof, so that the loavesof bread may be quickly and conveniently wrapped therein in a prescribed manner.

A still further object of the invention is to provide a wrapper making machine wherein the wrappers of prescribed form and size as successively produced are delivered to a table for hand wrappin purposes.

A still further ject of the invention is to provide novel means forfeeding, guiding and applying paste to the moving web of paper and cutting the pasted portion of the web into wrappers of the required dimensions.

A still further object of the invention is to provide a machine of 'the character described embodying simple, reliable and efficient paste applying devices whereby a definite amount of the paste will be applied at proper points to the moving web.

The invention consists of the features of construction, combination and arrangement of parts, hereinafter fully described and claimed, reference being had to the accompanying drawings, in which Figure 1 is a top plan view of a wrapper making machine embodying my invention, showing a completed wrapper delivered for use upon the work table; Fig. 2 is a view in elevation looking toward one side of the machine: Fig. 3 is a vertical longitudinal section through the machine; Fig. 4 is a detail vertical section through one end of the hopper of the device for applying the transverse line of paste, and showing the mechanism at the adjacent side of the frame for periodically raising and lowering said hopper; Fig. 5 is a detail section on the line 5-5 of Fig. 4; Fig. 6 is a detail transverse section through the hopper shown in Fig. 1, with the paste applying roll thereof in normal position; Fig. 7 is a plan view of one of the completed wrappers.

In carrying my invention into practice I provide a main supporting frame 1 having a top portion 2 terminating at the front in a work table 3, the rear portion of the top 2 having suitably mounted thereon at opposite sides thereof bearing brackets 4:. Suitably journaled upon these bearing brackets above the rear of the table top 2 is a shaft or spindle 5 for supporting a supply roll of paper 6, from which roll the free end of the paper is extended in the form of a web 7 downwardly from the roll 6 and forwardly between guide and feed rolls 8 and 9, journaled in suitable bearings upon the brackets and main frame, respectively. The web 7 extends from the rolls 8 and 9 over the surface of the top 2 in contact with intermediate and forward feed and guide rolls 10 and 11, the upper peripheral portions of which are exposed and project through slots 12 and 13 formed in the top 2, which rolls 10 and 11 also serve as backin as hereinafter fully descrlbed. Journaled upon the brackets 1, above the roll 11 is a roll 14 carrying at one point in its periphery a cutting blade 15 extending longitudinally in a direction transversely of the table.

J ournaled in suitable bearings at the front portion of the frame is a transverse drive shaft 16 carrying a main drive gear 17 meslging with a gear18 on one end of the shaft of the roll 11, which gear 18 also meshes with a gear 19 on the adjacentend of the shaft of the roll 14. whereby said rolls 11 and 1.4 are driven. The gear 18 also meshes with a pinion 20 which transmits motion therefrom to a gear wheel 21 on the adjacent end of the shaft of the roll 10, whicln' in turn, meshes with a pinion 22 arranged to transmit motion to a gear wheel 23 on the shaft of the roll 9, which gear 23 transmits motion to a pinion 21 on the shaft. of the roll 8, whereby the aforesaid rolls are driven in timed accord and speed.

or platen rolls,

at regulated rates of Suitable mechanism is provided for operating the shaft 16 tointermittently actuate the series of rolls, the said mechanism comprising a treadle or foot lever 25 coupled by a link or connecting arm 26 with a lever 27 pivoted to the shaft 16 and provided with a pawl or dog 28 adapted to engage a ratchet wheel 29 fixed to the shaft, whereby each time the treadle or foot lever 25 is depressed, the shaft 16 will be operated to impart feeding and actuating motion to the train of gears operating the series of rolls. A coiled contractile spring 30 connects the lever 27 with the frame and is adapted to be expanded and t-ensioned *when the treadle is depressed to return the actuating parts to hormal position, in which motion the dog or pawl 28 rides over the teeth of the ratchet wheel ready for the next intermittent feed motion.

The web 7 supplied from the paper roll 6 may be of any suitable width and is designed, upon each actuation of the series of rolls by the operating mechanism, to be fed forward to a predetermined extent and through certain instrumentalities, in connection with those previously described, to be supplied along its longitudinal margins with lines of paste and at a proper point with a transverse line of paste, a proper portion of the free end of the web to form a complete wrapper being moved forwardly on to the table 3 for use and the web separated by the cutter 15 in rear of the transverse line of paste to sever the formed wrapper from the remainder of the web. A wrapper 31 of the character produced is shown in Fig. 7, the said wrapper being provided along its side margins with lines of paste 32 and alongits inner transverse margin with a line of paste 33. The lines of paste 32 are applied. to the web by means of rollers 34 journaled upon paste hoppers or receptacles 35 pivotally mounted, as at 36, upon the brackets 4, each of said hoppers comprising a rectangular box or receptacle designed to hold a certain amount of paste and provided with an outlet 37 receiving a portion of the paste applying roller 34, which normally closes said outlet against the too free escape of paste and is revolved in the motion of the moving web and caused to take up a portion of the paste and apply the same to the web. The hoppers 35 are pivotally mounted so that the rollers 34 will be held by gravity in close contactwith the paper web, and vet may have a certain amplitude f motion in a vertical plane to compensate for variations in the thickness of the paper.

The means for supplying the transverse line of paste 33 at predetermined intervals to the moving web comprises a transverse hopper 38 having a contracted outlet at. 65 its base disposed above the opening 12 in nioaoie the table top and in line with the upwardly projecting portion of the roll 10, and provided at its ends with vertical guideways 40. A paste applying roll 41, acting also as a valve, is normally adapted to close the outlet 39 against the discharge of paste and 15 provided with reduced end portions or journals 42 which are mounted to rot-ate and slide vertically in the guideways 40. The ends of the hopper 38 have upward extensions 43 provided with outwardly projecting pins or stems 44 which seat within receiving recesses 45 in the brackets 4, whereby sald hopper is detachably supported upon the machine frame and is also mounted for movement. in a vertical plane toward and from the roll 10 and the interposed web of pa er.

isposed beneath the stems 44 are cam disks or eccentrics 46, provided with journals 47 extending through and arranged to rotate in bearing openings in the brackets 4, said journals carrying at their outer ends gears 48, one of which gears meshes with the gear 21 on the shaft of the roll 10 at one side of the machine frame, while the other of the gears 48 meshes with a gear 49 on the end of the shaft of the roll 10 at the opposite side of the frame, whereby when the rolls are operated to feed the strip of paper forward for the production of a wrapper, the cam disks 46 will also he revolved. As shown, each of these disks is provided at a point in its periphery with a notch or recess 50 having at one side a stop shoulder 51 and at the other side an inclined 0r cam face 52, the said notch being normally disposed at the upper portion of the disk and receiving the adjacent stem 44, the shoulder 51 engaging the stem and holding the cam disk against any tendency to retrograde rotation.

In the operation of the machine, the free end of the paper web 7 is unwound from the roll 6 and extended over the table top 2 between the superposed sets of rolls and beneath the paste applying devices, the free extremity of the web projecting beyond the rolls 11 and 14 and slightly over upon the surface of the table 3. When the treadle 25 is depressed and motion is communicated to. the shaft 16, the drive gear 17 is partially rotated and communicates motion to the feed rolls and cam disks through the intervening train of gearing. On each operating action the cam disks and each of the rolls 10, 11 and 14 make. one complete revolution, and thus effect the forward feed of a suilicient length of the web ove up n the table 3 to form a wrapper of the required size. Normally, the cam disks are disposed in the position shown in Fig. 5, from which it will be seen that the stems 44, are seated in the notches 50 and support the hopper 38 in a depressed condition, in which the walls rev ' web, so that the paste elevating the hopper of the outlet 39 lie in close proximity to the applying roll 41, which is free for upward motion will be raised by the projecting portion of the roll 10, thus uncovering the outlet 39 and allowing of the flow of a prescribed amount of paste to the web 7, whereby the line of paste 33 is produced. When the rolls are set in motion in the manner described and the web 7 moves forward, the cam surfaces 52 of the disk 46 engage and lift the stems 44, thus 38 so that the roll 41 drops down and closes the outlet 39 against the further escape of paste, these stems 44 riding upon the peripheries of the disks 46 until said disks make one complete revolution and the recesses 50 again come into register with the stems 44, whereupon the hopper 38 again drops down by gravity to normal position at the moment the motion of the feed mechanism is arrested and the roller valve 41 again opens for the supply of paste to the web. In the forward travel of the web the rollers 34 apply the marginal lines ofpaste 32 and after the web has moved forward the prescribed distance the knife 15 carried by the roll 14, comes in contact with the portion of the web in rear of the paste line 33 and severs such portion of the web from the remainder of the web, the severed portion which is disposed upon the table 3, forming the complete wrapper 31, as shown in Figs. 1 and 7. It will be understood, of course, that the rolls 10 and 11 in addition to their action as feeding devices for the paper web, also serve respectively as abutment and platen surfaces for co-action with the roller valve 41 and cutter 15 to insure the proper operation thereof.

It will be understood from the foregoing description that the operator, who stands at the forward portion of the frame, may depress the treadle 25 at desired intervals to effect the production of a complete wrapper 31 which is delivered upon the surface of the table 3 to him. The operator then takes a loaf of bread and deposits it in proper posi' tion upon the wrapper, folds over and secures the transverse edges thereof by the paste and then twists the ends of the wrapper which are secured by the paste 32. A loaf of bread being thus wrapped, the operator may depress the treadle and another wrapper is formed and projected upon the table for use, and in this manner the wrappers may be successively formed as required, enabling the operator to hand-wrap the bread with great facility and rapidity.

\Vhile the mechanism described is adapted and designed principally for use in the production of bread wrappers and the wrapping of the bread by hand manipulation thereof, it will, of course, be understood that such mechanism may be employed whenever desired in conjunction with a machine in which suitable mechanism is also provided for wrapping the loaves.

The present structure as disclosed is adapted especially for the use of bakeries in sections where bakers are required by law to wrap each separate loaf of bread before delivery to the consumer, simple, reliable, efficient and inexpensive machine for this purpose.

Having thus described my invention, I claim:

1.A wrapper making machine including paper feeding mechanism, pivotally mounted paste receptacles having outlets and provided with paste applying rollers controlling said outlets and adapted to apply lines of paste along the side edges of the web of paper fed by the feeding mechanism, a cutter for severing sections from the web at predetermined intervals, a device disposed to operate in advance of the cutter to apply transverse lines of paste to the web at predetermined intervals, and means for operating the several parts.

2. A wrapper making machine comprising a frame having a table, a paper supply roll, feed rolls arranged to feed a web of paper, from the paper roll toward said table, a cutter carried by one of the feed rolls for severing sections of the paper from the web at predetermined intervals, paste devices for applying lines of paste along the side edges of the web, a paste applying device disposed to operate in advance of the cutter and comprising a vertically movable hopppr having an outlet and a vertically mova le valve roller controlling said outlet and adapted when the hopper is depressed to be elevated by a coacting feed roll to deposit a transverse line of paste upon. the web, and means for operating the several parts, said means acting to raise and lower the said hopper at predetermined intervals.

3. A wrapper making machine comprising a frame structure having a top provided with openings therein, a support for a roll of paper, upper and lower feed rolls ar' ranged in alinement with said slots for feeding the paper in the form of a web from the roll, means for supplying paste along the of the upper feed rolls for severing the web at predetermined intervals, a vertically movable hopper having an outlet, a paste applying roller forming a valve controlling said outlet and adapted to be elevated to uncover the outlet when the hopper is depressed and apply a transverse line'of paste to the web and to close the outlet by gravity when the hopper is depressed, means for raising and lowering the hopper at predetermined intervals, and gearing for operat ing the working parts.

4. A wrapper making machine comprising a frame structure having a top provided and provides a a side edges of the web, a cutter carried by one i with openings therein, a support for a roll of paper, upper and lower feed rolls arranged in alincment with said slots for feed ing the paper in the form of a web from the roll, means for supplying the paste along the side edges of the web, a cutter carried by one of the upper feed rolls for severing the Web at predetermined intervals, a vertically movablehopper having an outlet, a paste applying roller forming a valve controlling said outlet and adapted to be elevated to uncover the outlet when the hopper is depressed and apply a transverse line of paste to the web and to close the outlet by gravity when the hopper is depressed, gearing for operating the working parts, a primary operating device, and pawl and ratchet mechanism for transmitting motion therefrom to said gearmg.

5. A wrapper making machine comprising a frame structure having a top provided with openings therein, a support for a roll of paper, upper and lower feed rolls arranged in alinement with said slots for feeding the paper in the form of a web from the roll,

means for supplying the paste along the side edges of the web, a cutter carried by one of the upper feed rolls for severing the web at predetermined intervals, a vertically movable hopper having an outlet, a paste applying roller forming a valve controlling said outlet and adapted to be elevated to uncover the outlet when the hopper is depressed and apply a transverse line of paste to the web and to close the outlet by gravity when the hopper is depressed, cams for raising and lowering the hopper at predetermined intervals, and means for operating the working parts.

6. In a wrapper making machine, and in combination with suitable paper fecdingnnd cutting means, a paste applying device comprising a hopper having an outlet and mov able relatively to the paper, a gravity acting paste applying roller movable and rotatable with relation to the hopper and outlet and controlling the same, and means for moving the hopper at intervals toward and from the paper to effect the opening and closing of the hopper.

7. In a wrapper making machine, and in combination with suitable paper feeding and moaora means, a paste applying device comprising a hopper having an outlet and provided with guideways, a gravity acting paste applying roller held by said guideways abreast of said outlet for engagement with-the aper on one side thereof, means engaging t e paper on the opposite side to limit gravity movement of the roller, and means for moving the hopper with respect to the roller to cause the latter to close the outlet of the former, substantially as described.

9. In a wrapper making machine, and in combination with suitable paper feeding means, a paste applying device comprising a hopper having an outlet, a gravity acting paste applying roller movably and rotatively held by said hopper in closing relation with respect to said outlet, and means for moving the hopper with respect to the roller to cause the latter to control egress through said outlet, substantially as described.

10. In a wrapper making machine, and in combination with suitable paper feeding means, a paste applying device comprising a hopper having a downwardly opening outlet and guideways extending upwardly from said outlet, a gravity acting paste applying roller having trunnions slidably and rotatively holding said roller in said hopper for downward gravity movement of the roller to close said outlet, means acting through the paper to support said roller in an opening position with respect to said outlet, and

means for moving said hopper with respect to said roller to open or close said outlet, substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

JOHN G. DENIS. Witnesses JosEPH MURRAY, J. I. BALDWIN.

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