US688488A - Wrapping-machine. - Google Patents

Description

Pa'tentad Doc. ID, ism.

H. BOSE. WRAPPING MACHINE.

' (Application filed July 23, 1901.)

(No Model.

16 Sheets-Sheet l.

INVENTOR ATTORNEYS WITNESSES MM THE NORRIS PETERS coy, PNOTD-LITHO.. WASHINGTQN. 04 c 7 No. 688,488. Patented Dec. l0, IQDL, H. ROSE.

WRAPPING MACHINE.

(Application filed. July 23, 1901.) (No Model.) l6 Sheets-Sheet 3.

- WITNESSES a: INVENTOR ATTORNEYS m: Mam virus 00., mflrouma, WASHINGTON. n. c,

(Np Model.)

, Pafented Dec. I0, 1901. H. RUSE.

WRAPPING MACHINE. A limidn filed July 23, 1901 I6 Sheets-Sheet 5.

WITNESSES v INVENTOR flTTORA/EYS TH: Noam PETERS col, woYaLn'uu. vqw mc'rom n. c.

. V Patented Doc. 10, mm. H. ROSE. WRAPPING MACHINE.

(Application filed July23, 1901:)

(No Model.) l6 Sheets-Shunt 6.

'INVENTOR iwA/ry l kw w WITNEssEs Patented Dgcplfl, l90l.

No. 688,483. I

H. BOSE;

WRAPPING MACHINE.

(Lpphcuhon filed July 23 1901 3 l6 Sheets-Sheet 7.

(No Model.)

INVENTOR M ATTOR'NE Y5 No. 688,488. Pa t'ented Dec. 10, IBM.

- H. nose, V

WRAPPING MACHINE.

(Applichtion filed m 23, 1991.

40 Model.) l6 Shets-Sheet INVENTORY WITNESSES Wm ATfORNEYS m: NCRRIS PETERS cow. PHDTO-LITHO', wnsumcrou. a, c.

No. 688,488. Patented Dec. I0, I90L.

H. ROSE. WRAPPING MACHINE.

. v A umiun filed July 23, 1901.

(No Model.) Y 16 Sh eets-Sheet 9.

WITNESSES INVENTOR flTTOR/VEYS THE NORRIS PETERS co. know-Luna" WASHIN'IDTUN, D. c.

No. 688,488. Patented Dec I0, [90L H. ROSE.

WRAPPING MACHINE.

' (Applieatiqn filed July 23, 1901.) (lo Model.) l6 Sheets- Sheet m.

VVITNESSES INVENTOR ATTORNEYS m: u'onms PETERS col, Pum' uYE-ca. wAsmncn'on. u. c.

No. 688,488. Patented Dec. l0, l90l.

. H. ROSE.

WRAPPING MACHINE.

(Application filed July 23, 1901.\

I6 Sheets-Sheet II.

(No Model.)

'INVENTOR 'WWTNESSES MM W No. 688,488. Patented Dec. l0, l90l.

H. ROSE.

WRAPPING MACH IN E. (Applicatioxi filed July 23, 1901. (No Model.) l6 Sheets-Sheet I3.

. 53 I WITNESSES INVENTOR ATTOR/VE Vs Tu: Mumps PEYERS m. Fania-Lima. wasmkorm, a. c

No. 688,488. Patented Dec. lo, 19m.

' H. npsz.

WRAPPING MACHINE.

(Application filed Jul 23, 1901.

I6 Sheets-Sheet l5.

-(Nd Model.)

INVENTOR I 5V WWW/W4 ATTORNEYS WITNESSES /K4WM+/ No. 688,488. Patented Dec. i0, 19m.

a. nose;

WRAPPING MACHINE.

(Application filed July 23, 190i.)

(No Model.) l6 Sheets-Sheet l6.

.PJNVENTOR WITNESSES firm/vars o ends of the wrappers.

UNITED STATES PATENT OFFICE.

HENRY ROSE, OF GAINSBOROUGH, ENGLAND.

WRAPPING- MACHINE.

PECIFIGATION forming part of Letters Patent No. 688,488, dated December 10, 1901.

Application filed July 23, 1901.

tion, such as will enable others skilled inthe art to which it appertains to make and use the same.

My invention relatcsto apparatus for inclosing in wrappers of paper, metal foil, or

I 5 the like butter-scotch, chocolate, or other material in the form of blocks or slabs, and has forits object to effect the inclosing of the said blocks or slabs of material with neatness and rapidity.

I will describe my invention with reference to the accompanying drawings, of which- Figure 1 is a longitudinal section of an apparatus constructed according to myinvention. Fig. 2 is a similar view seen from the opposite side of the machine, and Fig. 3 is a plan corresponding to Fig. 2. Fig. 4 is aside elevation of part of the mold-wheel, drawn to a larger scale. Figs. 5 and 6 are elevations at right angles to each other of the mechan- 3o ism for feeding the blocks of material to be wrapped into the molds in the mold-wheel. Figs. 7, 8, 9, and 10 are details of portions of the mold-wheel, showing the wrapper-gripping devices for retaining the wrappers in 3 5 position while the blocks of material are being inserted in the molds. Figs. 11 and 12 show the movable bottom of the molds in two positions. Figs. 13 and 14 show the mechanism for pressing the blocks of material with the wrappers into the molds; Fig..l5

is an elevation at right angles to Fig. 14, and Fig. 16 is a plan of the same. Figs: 17, 18, 19, and 20 are views of the device for making the first longitudinal fold in the wrappers.

5 Figs. 20 21, and 22 are views of the device for making the first fold in the two ends of the wrappers. Figs. 23 and 24 are elevations atright angles to each other of the devices for makin g'the second and third folds in the Figs. 25 to 28 are detached views, drawn to a larger scale, of the semrno. 69,421. (lll' omodeldevice for making thesaid second end folds; and Figs. 29, 30, and 31 show a block of material in the several stages of being inclosed in a wrapper.

Referring to Figs. 1, 2, and 3, 1 is the main frame of the machine, to which are bolted supplemental frames or brackets 2 and 3, carrying the mechanism for feeding the blocks of material and the wrappers in which the blocks are to be inclosed. 4 is the main shaft, mounted in bearings on the frame 1 and carrying fast andv loose pulleys 5 to receive a drivingstrap from any suitable motor. 7 dis the mold wheel or disk, having on the periphery molds 7, formed by two movable sides and a movable bottom, as hereinafter de scribed. The mold-wheel is fast on a shaft 8, carried on hearings in the frame 1, on which shaft is a spur-wheel 9, gearing with a pinion 10 on the main shaft 4, by which the said mold-wheel receives continuous rotation.

I provide atrough 1], through or along which travels an endless chain 11, having projections thereon by which the wrappers are conveyed into position on the periphery of the mold-wheel to receive the block of mapaper may be fed from a roll 12 of such. ma-

terial and be cut off to the required lengths in its passage to the mold-wheel, the said waxed wrapper passing from the roll 12 between a pair of feeding-rollers 13, the lower one of which receives intermittent motions of partial rotation, so as to feed forward at each intermittentmotion sufficient length of the paper to form a wrapper. This intermit tent motion of the feed-rollers is obtained in the following manner: On the axle of the lower roller 13 is a pinion 14 in gear with a spur-wheel 15 on a shaft 16, mounted in bearings in the bracket 3, on which shaft is a ratchet-wheel 17 with which engages a pawl 18, carried by a ever 19, loosely. mounted on the shaft 16. The lever 19 is connected by a rod 20 to a crank 'i'lisk 21 on ashaft 22,mounted in bearin gs in the bracket 3 and carrying a spur-wheel 23 in gear with a pinion 24,.

gearing with the spur-wheel 9 on the shaft carrying the mold-wheel 6, so that as the mold-wheel rotates intermittent motions are given through the gearing described, so as to feed the paper at each intermittent motion a sufficient distance to form a wrapper beneathacutting-blade 25,by which the lengths are severed from the roll, the said cuttingblade acting as a shear-blade against a stationary blade or cutting edge 26 and receiv ing its motion from a cam 27 on a shaft 27 acting on an arm 28 from the spindle 29, in which the blade 25 is fixed.

, The outer wrappers are separately fed into the trough 11, along which they are propelled by the endless chain 11, having projections 11" thereon at the required distances apart to engage the wrappers and feed them one at a time to between a pair of rollers 30, by which any creases in the wrapper or foil are removed, the said wrappers passing from these rollers into another trough 11 onto another part of the endless chain,into which trough 11 the waxedpaper wrappers fall when severed by the cutting-blades 25 onto a plate 31 in the said trough, while the outside wrappers pass beneath the said plate; but both wrappers are engaged by the projections 11 and carried by a lever 11 into position to be engaged by a nipping device, hereinafter described, on the mold-wheel. The lever 11 is carried loosely on a stud 11. The lever ll carries a roller llwhich engages with a cam 11 on the shaft 22. The wrapper-feeding endless chain 11 receives its motion by a chain-wheel 32 on the shaft 22 engaging therewith, the said chain transmitting motion to the shafts l6, 27 and 33, the shafts 16 and 33, carrying spur-wheels 15 34, respectively, gearing with pinions on the axles of the rollers 13 and 30, so as to rotate the said rollers at the required speed. If the blocks of material are each to be inclosed in a single wrapper, the mechanism for feeding the waxed-paper wrappers hereinbefore described may be dispensed with. Each wrapper or pair of wrappers, as the case may be, as it issues from the trough 11 has its forward end engaged between a stationary jaw 35 and a movable jaw 36 on the moldwheel, the said jaws retaining the wrapper in position over a mold while the mold-wheel is rotating to bring the wrapper into position to receive a block of the material to be inclosed therein.

The blocks or slabs of material, which I will refer to as butter-scotch, are placed in a trough the bottom of which is formed by an endless traveling band 37 or endless travelingbands of steel or other suitable material, carried on pulleys or rollers 38, one only of which is shown in the drawings, mounted on a shaft 39 and intermittently partially rotated by a pawl 40 on a lever 41, mounted loosely on the shaft 39, the said pawl engaging a ratchet-wheel 42, fast on the said shaft. The lever 41 is acted on by a roller 43, carried eccentrically on a disk 21, fast on the shaft 22, which is rotated by gearing from the main shaft 4 of the machine and timed so as to carry each block in succession into position to be transferred by a rocking arm 45 from the endless band 37 into a trough 46, arranged at a right angle to the direction of motion of the said endless band. Each block in succession is pushed from the trough 46 by another arm or lever 47 onto the wrappers as they are brought by the rotation of themoldwheel into position to receive the said blocks. The trough or endless band 37 on which the blocks of material are placed may be arranged parallel to and alongside of the wrapperfeeding trough, as shown, or it may be arranged on the opposite side of the machine to that on which the wrapper-feeding trough is arranged.

Each mold in the mold-wheel is formed by two movable sides 48 and a movable bottom 49, in. which molds the wrapping of the blocks or slabs of butter-scotch is effected. The mold-wheel may have any desired number of molds, eight, as shown, being a convenient number. The movable sides 48 are normally retained in their closed position by springs 50 (see Figs. 7 and 9) to suit blocks of a certain size, but which springs permit of the said sides opening out to suit slight variations in the sizes of the blocks. The bottom 49 of each mold is also capable of adjusting itself to suit blocks of various thicknesses, the said bottoms being operated in the manner hereinafter described, so as to eject the wrapped blocks from the molds onto an endless band 51, which carries the said wrapped blocks from the machine.

The arm or lever 45, which transfers the block from the endless band 37 in the blockfeed trough, is operated by a cam 52 on the main shaft 4 and so timed as to push the blocks one by one in succession as they come into position into the channel 46.

The arm or lever 47, by which the blocks are transferred from the channel 46 onto the mold-wheel, is operated by a lever 53, mounted on a shaft or stud 54, carried by the frame or bracket 3, the said lever being slotted at its upper end, which slot engages a stud 55, projecting from a rod 56 through a slot in a tubular guide 57, in which the rod 56 slides. The lever 53 carries a friction-bowl 58, hearing against a cam 59 on the shaft 22, the said cam being timed to admit of a spring 60, surrounding the said rod, forcing the lever forward to push the blocks one by one over the molds in the mold-wheel as they come into position to receive the said blocks.

On a shaft or stud 61 is a crank-arm 62 in the form of a slotted socket, Figs. 13, 14, and 15, in which slides a plunger or rod 63, by which the blocks and wrappers are forced into the molds. A stud projects from the plunv in Fig.14, the wrapper movable sides of the'said mold. time that the plunger is over the block the 7 6, projecting ger or rod 63 through the slot in the arm 62,

on which stud is an antifriction-roller 63 bearing on a cam 63 mounted on a shaft 64, which is rotated through a train of gearing from the spur-wheel 9 on the shaft of. the mold-wheel. The cam 63 is timed so as to act in combination with a spring 64 to cause the rod or plunger to slide to and fro in the socket at the required periods. Another arm or lever 65 is carried on the shaft or stud 61 and carries an antifriction-bowl 66, which bears on a cam 67 on a shaft 68, which cam causes the lower end of the lever 65 to move in a curved path to bring the plunger 63 over the block, which at the time is in position, with a wrapper on the bottom 49 of the mold in the mold-wheel, which bottom, as before mentioned, is movable toward and from the axis of the wheel and is at this time level with or slightly above the top edges of the At the same cam 63 allows the spring64 to press the block of butter-scotch and the bottom of the mold 49 downward, the plunger pressing the block,together with the wrappeiginto the mold as it passes beneath the said arm 62, as shown being at the time disengaged from a gripping device 35 36 on the mold-wheel, by which it was previously engaged to bring the said wrapper into position to receive the block. The engagement of the wrappers by the jaws 35 36 is effected by a stationary projection 69 on the frame 1, against which projection an antifriction-bowl 70 on the tail of each movable jaw 36 comes into contact as the mold-wheel rotates, so as to open the movable jaw to receive the edge of the wrapper as it is brought forward by the lever 11 the said jaw being closed by a spring 7las soon as the bowl 68 passes the projection 69. The jaw remains closed while the mold-wheel is moving into position to bring the wrapper into position to receive the block of material. Then just as the block is being pressed into the mold the bowl 70 comes into contact with another stationary projection 72, which causes the jaw to open and release the wrapper. After passing theprojection 72 the jaw closes and remains closed until it again comes into contact with the projection 69. By the insertion of the wrapper and block of material into the mold two opposite ends 73 74 of the wrapper are caused by the slides of the mold to stand up above the top surface of the block, as shown in Figs. 9 and 14. As the mold-wheel continues to rotate the rear upstanding end 74 of the wrapper is folded onto the butter-scotch by a folding device comprising an arm 75, mounted on a pin or stud from the main frame of the machine, on which arm is pivoted another arm 77, carrying the folding-blade 78. This folding'device receives an oscillating movement on the stud 76 by a cam 79 and 80 on a shaft 81, rotated by gearing from the spur a cross-head 87 on wheel on the mold-wheel carries an antifriction bowl 82, which is caused to bear on the cam 79 by a spring 83, and the cams 79 80 are timed so that when the 'antifriction-bowl 82 is on the lower part of the cam 79 and the folding-blade has partially folded the end 74 of the wrapper down the cam 80 will act on the arm 77 so as to cause the said end to be laid onto the butterscotch by the folding-blade 78, the said arm being then causedby the cam 79 to oscillate in the reverse direction, so as to be clear of the wrapper. A guard 84 is arranged to partially surround the mold-wheel, one end of which guard may carry a small roller 85,-

against which as the mold-wheel rotates the other upstanding end 73 of the wrapper comes into contact and is thereby folded onto the end 74, previously folded onto the butterscotch, thus completing the folding of the two ends of the wrapper, leaving only the laterally-projecting end of the wrapper to be folded. The top or first folds of the two laterallyprojecting ends of the wrapper are made by a pressing device (shown in Figs. 20*, 21, and

similar manner to that by which the block of butter-scotch and'wrapper are forced into the mold, the said pressing device being, however, provided with yielding projections 86, which will permit of its acting on blocks of slightly-different sizes. These yielding projections, which press. on the two laterallyprojecting ends of the wrapper, are hinged to the rod 88, fitted to slide in the socket or arm 89, mounted on a stud 90, projecting from the frame 1, the said rod 88 carrying, an antifriction-bowl 91, acted on by a cam 92 on the shaft 81, so as to impart to the said rod the reciprocating movements at the required periods. The arm 89 is oscillated on the stud 90 by a cam 93 on the shaft 68, acting on an arm 94 in connection with the said arm 89. The top or first fold of the laterally-projecting ends of the wrapper having been made, the rear side folds of the said laterally-projecting ends are made as the moldwheel continues to rotate by arms 95, the shaft 96, carrying these arms, being mounted in bearings in the main frame 1 of the machine and caused to rotate by gearing from the spurwheel on the shaft of the mold-wheel. These arms carry at their ends folding-blades, as shownin Figs. 25 to 28, one portion 97 of each of which folding-blades comes into contact with the folded-down end of the wrapper, so as to retain it in position while another portion 98 is making the first side fold. The second side folds in the end of the wrapper are made by rotating arms 99 on a shaft 100,

rotated by gearing from the shaft 96.

To prevent the wrapper from being damaged while the folds are being made, I provide on opposite sides of the mold-wheel guards or shields 101, over and in contact with which the laterally-projecting ends of the Wrapper shaft. The arm 75- '22) similar in construction and operated in a pass. 011 these guards or shields are twisted or helical projections by which the remaining unfolded parts or tabs of the laterally-projecting endof the wrapper are engaged, the said helical surfaces as the mold-wheel continues to rotate turning up the last folds and so completing the inclosing of the block of butter-scotch in the wrapper. If required, there may be provided on the guard lateral projections which will fold down any upstanding ends of the wrapper that may project above the block. The packets are ejected from the molds by the movable bottom being caused to slide radially in the mold-wheel onto the endless traveling belt 51, by which the packets are conducted away from the machine. The movable bottoms of the molds are provided with shanks or stems 102, fitted to slide in radial sockets 103 in the mold-wheel and are each provided with a small roller 104, which as the mold-wheel rotates are caused to run onto a cam-surface 105, and thus raise and lower the said bottoms at the required periods. The movable sides of the molds are normally held in their closed positions by the springs 50 pressing on arms or tailpieces 50 projecting from the said movable sides, and are opened by rollers 106, carried on the shanks 102 of the movable bottoms, and pressing on the said arms or tailpieces, as shown in Fig. 7, as the bottoms of the molds slide outward, so as to admit of the entrance into the molds of blocks of various sizes.

I claim as my inventionl. A wrappingmachine provided with a continuously rotating mold wheel, having molds on its periphery, each mold having a movable bottom and movable sides in combination with means for positively opening the sides and lifting the bottom before feeding the article to be wrapped thereto and means for lowering the bottom and permitting the sides to move to grasp the articleto be wrapped after it is fed to the mold, as described.

2. A wrapping-machine having a continuously-rotating mold-wheel, molds on the periphery thereof, means for feeding the wrapper to the wheel and a gripping means to hold it over the mold when fed, and means for feeding articles to be wrapped to the wheel, each mold having movable sides and a movable bottom which is adapted to occupy an upward position before the articles to be wrapped are fed thereto, in combination with means connecting the said sides and the bottom whereby the sides are extended upon the upward projection of the bottom and close upon the article to be wrapped when it and the bottom have been forced down into the moldwheel, substantially as described.

3. A mold foracontinuously-rotating mold- -wheel of a wrapping-machine, consisting of a movable bottom and movable pivoted sides, an arm carried by the bottom and extending lever-arms for the pivoted sides, said bottom arm being adapted to open the sides upon its upward movement in combination with springs to close the sides upon the downward movement of the bottom and its arm, substantially as and for the purpose described.

4. A wrapping-machine having a continuously-rotating mold-wheel, and means for feeding the articles to be wrapped thereto, in combination with a single oscillating and reciprocating plunger to act on the successive molds to press the articles therein, and mechanism to press the plunger down and move it in the direction of travel of the mold-wheel, withdraw it therefrom and then move it back for the next mold.

5. A plunger device for a continuously-rotated mold-wheel consisting of an oscillating tubular arm, a rod or plunger in the tubular arm, a cam and spring for imparting oscillating motion to the tubular arm and a cam and spring for imparting sliding motion to the plunger, substantially as described.

In a wrapping-machine, the device for folding down the laterally-projecting ends of the partly-folded wrappers, the said device consisting of the combination'of an oscillating tubular arm, a rod fitted to slide in the tubular arm, yielding projections hinged to the rod and connected together by a spring, a cam for imparting oscillating movements to the tubular arm and a cam and spring for imparting sliding movements to the rod at required periods to cause the hinged projections to fold the top portion of the laterally projecting end of the wrapper against the ends of the block or slabs, substantially as described.

7. In a wrapping-machine, a continuouslyrotating mold-wheel, and molds thereon,each having a movable bottom with a shank, and movable sides, in combination with mechanism between the shankand the sides to move the sides upon the movement of the shank, and a stationary cam-surface adapted to operate the shank to discharge the wrapped articles, the sides being adapted to release their hold on the article upon the movement of the shank, substantially as described.

8. A wrapping-machine having a continuously-rotating mold-wheel, a channel at right angles thereto and above it,molds in the mold wheel and means for feeding wrappers in position over such molds in combination with a pusher and means to operate it to push articles from the channel onto the wrappers as the rotating wheel brings them opposite the channel and a horizontal plunger to force the articles and wrappers into the molds, all during the continuous rotation of the mold-wheel, as described.

9. A wrapping-machine comprising a continuously-rotated mold-wheel,molds thereon, means for feeding wrappers thereto, 'a wrapping device to hold the wrappers and cam and lever to operate the gripping device, in combination with a plunger to force the article to be wrapped and the wrapperinto the mold

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