US718747A - Wrapping-machine. - Google Patents

Description

No. 718,747. 4 V PATENTED JAN. 20, 1903. A. BERNAUER. WRAPPING MACHINE.

APPLICATION FILED MAY 27. 1902.

no menu. 4 SHEETS-SHEET 1.

PATEN'TED JAN; 20, 1903.

4 SHEETS-SHEET 2.

III

A. BERNAUER.

WRAPPING MACHINE.

APPLIOATION FILED MAY 27, 1902.

no MODEL.

'PATENTED JAN. 20, 1903.

A. BEHNAUER.

WRAPPING MACHINE.

APPLICATION FILED MAY 27, 1902.

4 SHEETS-SHEET 3.

I no MODEL.

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' PATENTED JAN. 20, 1903. A. BERNAUER.

WRAPPING MACHINE.

APPLICATION FILED MAY 1 1902- I0 MODEL.

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ALBERT BERNAUER, OF HANNIBAL, MISSOURI, ASSIGNOR TO GEORGE E. POTTS, OF DOVER, NEW JERSEY.

WRAPPING-MACHINE.

{SPECIFICATION forming part of Letters Patent N 0. 718,747, dated January 20, 1903.

Application filed May 27, 1902. Serial No, 109,235. (No model.)

To aZZ whont it may concern.-

Be it known that I, ALBERT BERNAUER, a citizen of the United States, residing at Hannibal, Missouri, have invented certain new and useful Improvements in Wrapping-Machines, of which the following is a specification, accompanied with drawings. 7

My invention relates to wrapping-machines, but more particularly to machines for wrapping cylinders or sticks of material; and its primary object is to enable sticks of explosive material, such as gelatin, to be wrapped in a suitable covering without danger to the operator. Such gelatin must be handled delicately, ordinary wrapping-machines not being suitable for the purpose; and my invention is designed with the object of enabling gelatin to be thoroughly and securely wrapped in suitable material, such as paper, while at the same time manipulating the gelatin lightly and without shock.

Further objects of my invention will hereinafter appear; and to these ends my invention consists in an apparatus for carrying out the above objects constructed and having the general mode of operation substantially as hereinafter described in the specification and accompanying drawings, in which- Figure 1 is a side elevation of the machine embodying my invention. Fig. 2 is a plan view of the same. Fig. 3 is a longitudinal sectional elevation on the line 3 3 of Fig. 2. Fig. i is a transverse sectional elevation on the line i 4 of Fig. 2. Fig. 5 is a detail view of a portion of the machine, taken on the line 5 5 of Fig. 4, looking in the direction of the arrow. Fig. 6 is a detail inside view, partly in section, of parts of the operating mechanism. Fig. 7 is a detached detail view of parts of the operatingmechanism. Fig. 8 is a side View showing one of the rollers of the machine in detail, and Fig. 9 shows the rollers of Fig. 8 in end View.

The machine is designed more particularly to continuously feed and wrap sticks or cylinders of material, such as explosive gelatin, the gelatin being shown at A as continuously fed from a suitable nozzle 13, which may be attached to any suitable machine for continuously feeding the material to be wrapped, this machine itself forming no part of my invention, so it has not been illustrated or de scribed.

My invention is not limited to the manipulation of explosive gelatin only, as it may of course be utilized with any material for'which it is suitable in operation; but I have shown it and will describe it in connection with the manipulation of gelatin.

A continuous stream of gelatin emerging from the nozzle B is sheared off by suitable means into sticks D of a given length and fed to one of the holders or carriers 0 upon the wrapping material E, which may be paper and which has previously been fed to the holder or carrier and cutinto the desired length by the knife 40 or by other suitable means.

Mechanism is provided for moving the holder or carrier 0, of which a plurality is shown for continuous operation, and in the operation of the machine a stick D is carried opposite a continuously moving surface, which may be in the form of a traveling belt or belts G. By moving the stick and its wrapper into contactwith the moving surface the stick of material is rolled up in its wrapper, the ends of the wrapper which project slightly beyond the stick of material are turned in, and the wrapped stick of gelatin is discharged at one end of the machine into any suitable receptacle.

According to the apparatus embodying my invention means are provided for feeding and cutting the paper and for applying paste to the same by means of the brushes 75, and suitable mechanism, shown as a pusher I, is arranged to shear or cut the gelatin into the proper lengths and push it from the table J to one of the holders or carriers 0 as said holder or carrier comes into position to receive'the stick of material.

The object of usingatraveling belt or belts Gr to roll up the stick D in its wrapper E is to prevent shocks to the gelatin, and the belts being flexible, and preferably of rubber, shocks and jars are prevented and the gelatin is readily and quickly rotated in its holder or carrier 0 and rolled up in its wrapper. Instead of using belts any other suitable flexible means may be provided for carrying out my invention. I having illustrated my invention in one suitable form; but I am not to be understood as limiting myself to this particular form.

Referring more particularly to the construction of my improved apparatus, upon a suitable frame M is mounted a pusher I, carried upon a suitable rod 1, connected to a piston 2, reciprocating in a cylinder 3, which is constructed to oscillate upon a pivot 4 in order that, after the pusher I has fed one of the sticks to a holder or carrier, by pushing such stick along the table J in the direction of the arrow the cylinder 3 may be oscillated to raise the pusher and retract it over the advancing stream of gelatin in readiness for the next operation. Means are provided for carrying out this operation automatically. As the stream of gelatin A advances in front of the pusher D in the position shown in Fig. 2 the end of the stream impinges upon a movable stop 4, connected to a lever 5, pivoted at 6, and connected to actuate a valve 7, retracted by a spring 8. The pressure of the stream of gelatin A upon the stop 4 actuates the lever 5 to open the valve 7 and admit fluid, as compressed air, by means of suitable piping 9 to the rear of the piston 2 and cylinder 3, thereby causing a movement of the pusher I, which shears off a given length of the gelatin from the nozzle B and pushes the stick that is out along the table J and over the end of the same into one of the holders 01' carriers C, which holder or carrier has been moved into position to receive the same, a paper E having been previously fed to the holder or carrier. Means are provided, shown as a spring 10, for retracting the cylinder 2.

To the rear of the piston 2 is shown connected a rod 11, provided with a guide pin or roller 12, operating within a casing 13, provided with a movable cam 14, pivoted at and normally retracted upwardly by suitable means, as a spring 16, connected thereto at the outside of the casing. As the piston 2 starts forward under the influence of compressed air the pin or roller 12 advances along the upper side of the cam 14, actuated by the casing, and gradually pressing the outer end of the cam downward. \Vhen the piston 2 arrives at the end of its stroke, the pin 12 passes off the end of the cam 14, and the cam is immediately retracted by the spring 16, so that when the piston 2 starts its return stroke under the influence of the spring 10 the pin 12 follows beneath the cam 14, thereby rocking the cylinder 3 upon its pivot 4 and raising the pusher, so that it may be carried forward over the advancing stream of gelatin, and as the pin 12 follows around the pivot portion of the cam 14 the pusher is placed upon the table J again behind the gelatin in readiness for a repetition of the stroke. The movements of the piston 2 and its connecting parts are also arranged to control the operation of suitable motors K and L, which control the feeding of the paper or wrapping material and the movement of the holders or carriers 0.

The motors K and L may be of any suitable character; but in this instance they are shown as compressed-air motors, as this has been found to be a satisfactory and convenient form of motor for the apparatus. The motor K is connected to actuate the paper-feeding mechanism, while the motor L is connected to actuate the carriers 0 and the mechanism for supplying paste to the wrapping material.

As the pin or roller 12, connected to the piston 2, moves rearwardly on the return stroke of the piston it hits against the end of a curved rod 18, which, as shown, is slidably mounted upon the frame of the machine, passing over the rollers 19. This rod 18 is formed, as shown in Fig. 5, with cam-shaped projections 20, adapted to pass beneath the arms 21- of hellcran k levers 22 and actuate said levers against the tension of springs 23 to open the valves 24 of the motors K and L, thereby admitting fluid to the motors from the pipe 25, the exhaust-pipes being shown at 26. That cam which actuates the valve of the motor L is carried upon an extension 27 of the rod 18, since the motor L is lower down upon the machine than is the motor K, and the arrangement of the cams and apparatus is such that the valve 24 of motor K is actuated slightly in advance of the valve of the motor L.

The arms 21 of the bell-crank levers 22 c0- operate with notched wheels 28, carried upon the counter-shafts actuated by the motors, so that until the arms 21 are raised from engagement with the wheels 28 the shafts to which said wheels are connected cannot be actuated. The act of opening the valves 24 also raises the arms 21 of the bell-crank levers out of engagement with the wheels 28. This arrangement is provided for in order to properly time the apparatus and to bring all the parts into cooperation at the proper moments.

In order to obtain the proper speed of running the motor, shafts 29 are connected, through pinions 30 and gears 31, to the driven shafts 32 and 33. The driven shaft 32, operated by motor K, is connected, through suitable gearing 33 and 34, to drive the feed- rolls 35 and 36, suitably keyed to said shafts. As shown, the bearings 37 of shaft 32 are made vertically adjustable by means of adjustingscrews 38 and connected in any suitable manner either to the frame or to the bearings 37, as shown. Cams 39 are provided for controlling the operation of the cutter 40, which is arranged to be reciprocated to cut the paper or wrapping material into the proper lengths automatically. The cams 39 are provided with inwardly-facing grooves 41, as shown in Fig. 3, and the back or frame 42 of the knife projects at each side through slots 43 in the roller 35 into the grooves 41 in the cams 39. By this arrangement during rotation of the rollers 35 the knife 40 is moved in and out of the longitudinal slots in the roller. A cooperating groove is provided in the under roller 36, which is arranged to come opposite the longitudinal slot in the upper roller whenthe knife is projected downward for the cutting of the paper. The additional and supplementary feed-rolls 44 are connected in any suitable manner to be actuated from the shaft 32, as shown, gears 45 being connected by a sprocket-chain 46 to actuate the rollers 44, between which the wrapping materal E passes.

I will now refer to the mechanism for moving the holders or carriers Oin the operation of the machine. Upon the shaft 33, which may be termed the idler-shaft, are looselyarranged wheels 47, of which there are preferably two, one near each end of the shaft and within the frame of the machine. These wheels 47 are provided with notches 48, of which there may be any suitable number; but as shown in this instance each wheel is provided with six notches. The shaft 49 is also provided with wheels 50 of the same construction as the wheels 47,being provided with six notches 51 and fast to the shaft 49.

Means are provided for actuating the shaft 49 from the shaft 33, shown, for instance, as a connecting-rod 52, connected at one end to a wrist-pin 53 on the disk 54, connected to shaft 33, and at the other end connected to an arm 55, loose upon the shaft 49. 55 carries a spring-actuated pawl 56, cooperating with a ratchet 57, fast upon the shaft 49, so that as the arm 55 is rocked or oscillated by the connecting-rod 52 the shaft 49 is actuated step by step. As shown in this instance the ratchet 57 is provided with six teeth, so that the shaft 49 is carried around in six steps, which correspond with the number of notches in the wheels 47 and 50.

The idler-wheels 47 upon shaft 33 are connected with the wheels 50 by a suitable chain made up of links 58, each of a construction suitable for operation in connection with my machine. The links 58 are connected to each other by pins 59, adapted to the grooves 48 and 51 in the wheels and extending between the two wheels on each shaft, so that the links forming the chain fall outside of the flanges ot' the wheels, thereby maintaining the chain upon the wheels. Each link is formed, as shown, with a hollowed or scal loped central portion 60, with curved portions 61 at each side thereof. Each link may be of any suitable shape, provided it has a hollowed central portion which forms the bearings for rollers 62, extending across from one side of the chain to the other.

There may be any suitable number of rollers provided, connected to each link; but, as

shown by way of illustration only, each link is provided with three rollers, which may be of wood or metal covered with some material '(63) which produces friction, as rubber or The arm ported between the rollers 62 upon the wrapper. The arrangement of rollers is such that the top of the stick or cylinder D projects above the tops of the outer rollers 62, so that if a suitable traveling surface were applied to the projecting surface of the stick D the stick would be rapidly rolled up within its inclosing sheet-wrapper.

Instead of applying the actuating means to the stick or cylinder D, according to the construction shown, each time that a stick or cylinder is pushed over into one of the carriers C, formed by the chain-links and the chain rollers, the wheels 50 are rotated through one-sixth of a revolution at a time, thereby actuating the chain and moving a carrier, with its stick or cylinder D to be wrapped, beneath a suitable traveling surface and into con tact with the same, whereby the stick or cylinder D is rotated between the rollers 62, which offer little or no resistance to its rotation.

Any suitable means may be provided of the proper flexible character for wrapping the stick D; but, as shown, rollers 64 are arranged above the carriers and conveniently beneath the table J. These. rollers 64 may be actuated by any suitable means; but, as shown, they are connected to be actuated by another compressed-air motor 65, connected by chain and sprocket to oneof the rollers 64. Instead of extending one broad belt across the rollers 64 I prefer to connect these rollers bya series or plurality of belts 66, of any suitable material, but preferably of rubber, for by this means each separate belt may be kept tight without sagging. Means are then provided, as an adjustable screw 67, connecting the shafts of the rollers 64, for adjusting the distance between said shafts. The rollers 64 are also provided with means for crimping down the edges of the wrapping material as each stick or cylinder of gelatin is wrapped. As shown, at each end of the rollers is arranged a scalloped outwardly-bent flange 68, which turns in the edges of the wrapping-paper over the ends of the stick or cylinder to be Wrapped.

The connecting-pins 59 between the links are preferably rollers in themselves, and a table 69 is arranged at the top of the belt in such manner that the pins or rollers 59 pass upon this table, and the carriers 0 are thereby afforded a firm base. The table 69 is preferably adjustable, as by means of a nut 70,'so that it may be moved to and from the rollers 64 to adjust the pressure with which the stick or cylinder to be wrapped is pressed against the traveling belt 66.

The direction of rotation of the parts is such that the relative movements of the sticks D and the belts 66 are opposite to each other, thereby causing a rapid rotation of the sticks of gelatin D in the carriers between the rollers 62.

Suitable means are provided for applying paste to the wrapping material as it is fed forward, and, as shown, a rod 71 is pivotally connected to the connecting-rod 52 and provided with a rack 72 at its upper end meshing with a pinion 73, connected to a shaft 74, to which is secured the brushes 75. The movements of the connecting-rod 52 raise and lower the rod 72, thereby reciprocating shaft 74 and brushes 75. These brushes are arranged to first pass under the perforated bottom 76 of the paste-pot 77 and convey the paste to the wrapping material E. The wrapping material is preferably carried in a roll E on any convenient part of the frame, and from this led to the feed-rolls.

The operation of the apparatus may be briefly summed up as follows; The paper or other suitable material E is first fed into the machine until the end of the paper reaches a point adjacent the rolls 64, as shown in Fig. 3. The feeding of the gelatin D is then started, and when the end of the stream of gelatin aetuates the movable stop 4 to throw open the valve 7 and admit fluid behind the piston 2 the pusher I will be actuated to shear off a stick or cylinder of the gelatin, preferably about eight inches long, though it may be of any suitable length, and push the stick from the table J upon paper E and into the carrier 0 waiting to receive it, as shown in Fig. 3. Upon the return stroke of the piston 2 the rod 18 will be actuated, as hereinbefore described, to first open the valve 24 of motor K, admitting fluid to said motor to start the feed-rolls, and then immediately after causing the valve 24 of the motor L to be opened, thereby actuating the wheels 50 to move the carrier C, bearing the stick or cylinder to be wrapped,opposite the traveling belt 66, which belts are always in motion. The end 6 of the wrapping material or paper will be bent or folded down upon the stick of gelatin D as the stick is carried forward and pressed against the belt 66, which, traveling in contact with the article to be wrapped,

causes it to rotate between the rollers 62 of the carrier 0 and rapidly roll up within the paper.

Neither of the motors K and Lean be started until the bell-crank levers 22 have been actuated, and the apparatus is so timed that the wheels 50 may make but one-sixth of a revolution at a time, the bent rod 18 being released and retracted by the spring 100 in Figs. 1 and 2, thereby locking the mechanism again through the operation of the bell-crank levers 22 and the notched wheels 28. Each time that the wheels 50 and 47 make one-sixth of a revolution the feed- rolls 35 and 36 make one complete revolution, thereby cutting off the paper and feeding it forward as the carrier moves forward.

While I have shown traveling carriers for the material to be wrapped, it is to be undermay be used without others, and my apparatus may be Varied in widely-differing forms. Therefore Without enumerating equivalents or limiting myself to the construction shown and described, I claim, and desire to secure by Letters Patent, the following:

1. In a wrapping-machine,the combination wit-h the carriers and means for actuating the same, of a pusher, an oscillating cylinder, a piston therein connected to said pusher, a casing, a pivoted spring-actuated cam within the casing, a pin or follower connected to said piston and controlled by said cam, and means for supplying motor fluid to said cylinder, substantially as and for the purposes set forth.

2. In a wrapping-machine, the combination of a table, a pusher, an oscillating cylinder, a piston therein connected to said pusher, a casing and a cam within the same, a pin or follower connected to the piston and controlled by the cam, and means for supplying motive power to said cylinder, substantially as and for the purposes set forth.

3. In a wrapping-machine, the combination of carriers, a pusher for feeding the material to be wrapped to the carriers, means for feeding the material in front of the pusher, means controlled by the feed of the material for actuating the pusher, a motor for moving the carriers, and means controlled by the pusher for starting and stopping the motor, substantially as described.

4. In awrapping-machine, the combination of carriers, means for cutting and feeding the wrapping material to the carriers, a pusher for feeding the material to be wrapped to the carriers upon the wrapping material, means for feeding the material in front of the pusher, means controlled by the feed of the material for actuating the pusher, a motor for operating said cutting and feeding mechanism, and means controlled by the pusher for starting and stopping the motor, substantially as set forth.

5. The combination of a table, means for feeding material thereon, a pusher supported to reciprocate and oscillate in directions transverse to the direction of feed to the table, and means controlled by the feed of the material for reciprocating and oscillating the pusher, substantially as set forth.

6. In a wrapping-machine, the combination with a table, of a pusher, an oscillating cylinder, a piston therein connected to said pusher, a casing, a pivoted spring-actuated cam within the casing, a pin or follower connected to said piston and controlled by said cam, and means for supplying motor fluid to said cylinder, substantially as set forth.

7. In a wrapping-machine, the combination of a table, mechanism for cutting and feeding the wrapping material, an oscillating pusher and means for actuating the same, and means controlled by said oscillating pusher for actuating the cutting and feeding mechanism, substantially as set forth.

8. In a Wrapping-machine, the combination of a table, wrapping devices, an oscillating pusher for feeding sticks of material to be wrapped, to the wrapping devices, and means controlled by said oscillating pusher for actuating the Wrapping devices, substantially as set forth.

9. The combination of feed rollers and means for actuating the same, of stationary cams arranged at each end of the rollers, a knife arranged within one of said rollers and projecting through aslot in the same, the

tion of carriers, a motor actuated by fluidpressure to drive the carriers, means for looking the carriers against movement, a pusher for feeding material to be wrapped to the carrier, and means operated by the pusher to release the locking means and to admit fluid to the motor, substantially as set forth.

12. In a wrapping-machine, the combination of intermittently-movable Wrapper cutting and feeding devices, a motor actuated by fluid-pressure to operate the cutting and feeding devices, means for locking said devices against movement, a pusher for feeding material to be wrapped to the carriers upon the Wrapper, and means operated by the pusher to release the locking means and to admit fluid to the motor, substantially as set forth.

Signed this 22d day of May, 1902, at Dover,

New Jersey.

ALBERT BERNAUER. Witnesses:

WILLIAM H. PIERSON, EUGENE J. COOPER.

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