US1542474A - Wrapping machine - Google Patents

Description

June 16, 1925. 1,542,474

G. W. PROUTY WRAPPING MACHINE Filed June 21. 1921 6 Sheets-Sheet 2 50 5 J Inventor:

Gear 6 Wlrouly, b f/iwwm M Jupe 16, 1925 G. W. PROUTY WRAPPING MACHINE Filed June 21. 1921 6 Sheets-Sheet 3 M-E:E E-E:2:222:52:

"will! m.

wenlor: 61

June 16, 1925.

G. w. PROUTY WRAPPING MACHINE Filed June 21. 1921 6 s s t 4 Invent-0J1; r0 QW/M,

Aii y.

George y June 16, 1925. 1,542,474

I G. w. PROUTY WRAPPING MACHINE Filed Juhe 21. 1921 6 Sheets-Sheet 5 Q *TIIL fiwentor: George Wlroulg,

June 16, 1925. 1,542,474

G. w. PROUTY WRAPPING MACHINE Filed June 21, 1921 5 s t s t 6 171 171 175 M {HW Geozye Wlrouif y,

m Q m vented certain new and useful Improvements Patented June 16, 1925.

UNITED STATES PATENT. OFFICE.

WRAPPING MACHINE.

To all whom it may concern:

Be it known that I, GEORGE W. PRoU'rY, a citizen of the United States of America, and a resident of Milton, in the county of'Norfolk and State of Massachusetts, have inin Wrapping Machines, of which the following is a specification.

This invention relates to wrapping machines and has for its object the provision of a machine of this character particularly designed for wr apping with strips of paper,

burlap or other material, a single shoe for the Wheels ofmotor vehicles although the machine maybe used also for wrapping other similar objects or even rolls of material. a

'One of the main-objects of the invention is to provide a means for supplying a strip of wrapping material from a roll removed from the shuttle and severing the strips at a predetermined time when there has been fed to the shuttle sufiicient material to cover the article being Wrapped.

A further ob'ect of the invention is to provide means or forcing the beads of the shoe together simultaneously with the'commencement of the wrapping operation.

Another object of the invention is the provision of means whereby the edge of the strip of wrapping material may befolded preparatory to its being fed to the article being wrapped.

Still another object of the invention is the provision of means for tilting the roller over which the strip passes to the article being wrapped whereby the strip may accommodate itself to the curvatures ofsaid article.-

And another object of the invention is the provisions of means whereby the actuating motor may be bodily lifted to permit 1ts driving wheel to frictionally contact with another friction Wheel upon the main operating shaft of the machine.

The invention further consists in certain novel features of constructionand arrangement of parts which will be understood readily by reference to the description of the drawings and tothe claims to be hereinafter given.

For the purpose of illustrating the invention, one preferred formthereof is illus- Application filed June 21, 1921. Serial No."479,410.

trated in the drawings, this form having been found to give satisfactory and reliable results although it is to be understood that the various instrumentalities of which the invention consists can be variously arranged and organized and the invention is not limited to the precise arrangement and or-' 0 .ganization of these instrumentalities as herein shown and described except as required by the scope of the appended claims.

' Of the drawings:

.Figure 1 represents aplan of a machine embodying the principles of the present 'invention.

Figure represents a front elevation of the same.

Figure 3 represents an elevation of the right side thereof.

Figure 4 represents a vertical section on line 4, 4, on Fig. 1. A

Figure 5 represents a vertical section on line 5, 5, on Fig. 1. w

' Figure 6 represents, in elevation, a portion of the shuttle and showing the mechanism for folding the edge of the strip of wrapping material.

Figure 7 represents a sectional detailof the shuttle\showing the means for locking .the gate thereof.

Figure 8 represents a plan of a portion of the inner face of the shuttle and showing the strip-guiding face ofthe shuttle and show- 86 ing the strip guiding and folding devices.

Figure 9 represents a detail, in elevation, of the mechanism for closing the beaded ends of an automobile shoe while beingwrapped.

. Figure 10 represents a horizontal section of same on line 10, 10, on Fig. 9.

Figure 11 represents a section on line 11, flon Fig. 9, and

Figure 12 represents a tion of the tilting roller and its support.

\ Similar characters indicate like parts throughout the several figures of the drawmgs.

cured to the upper face thereof two stand ards- 11 and 12 in the upper ends of which" sprocket wheels 15 and 16 secured vto the outer ends thereof.

longitudinal sec- In the drawings, 10 is a base having se- The upper ends of the standards 11 and 12 are forked and between the forked ends thereof, are positioned revoluble work supports 17, each support being formed in two parts adapted to be moved relatively to each other lengthwise of the shafts l3 and. 14.

Each shaft 13 and 14 is provided with a slot 18 extending longthwise thereof and each work-supporting part 17 is provided with a set screw 19 extending into said slot.

These supports 17 are adapted particularly to support an annular object such as an automobile shoe and as the various shoes vary in size, it is desirable that the worksupport 17 be made in two parts and movable toward and from each other whereby they may be made to accommodate the various sizes of shoes.

\Vhen adjusted along the shafts 13 and 14, the set screws 19 are adjusted -to lock the work-supporting parts 17 so that no further end movement thereof may be imparted thereto.

The set screws 19 extending into the slots 18, cause said work-supporting parts 17 to revolve with said shafts 13 and 14.

The base 10 has also secured to the upper face thereof, a standard 20 in the upper end of which is revolubly mounted a shaft 21 having a worm 22 keyed thereto and revoluble therewith.

' One end of the shaft 21 has secured thereto, a driving wheel 23 with its periphery normally free from contact with a friction wheel 24 secured to and revoluble with an electric motor 25.

This motor 25 is mounted upon the upper end of a frame 26 having depending ears 27 extending downwardly through an opening in the base 10.

The base 10 has secured thereto a plate 28 having depending cars 29 extending downwardly through an opening in said base 10.

Through the ears 29 extends a shaft 30 which has secured thereto, arms 31 the oppo-' site ends of which are pivoted at 32 to the depending ears 27 formed upon the motorsupporting frame 26.

Between the lower ends of the depending ears 27 and the depending ears 29, are link connections 33 whereby when the shaft 30 is oscillated about its axis, a vertical movement is imparted to the motor-supporting frame 26substantially in a straight line.

The shaft 30 has also secured theretoan arm 34, the outer end of which is connected by a link 35 to the lower end of an actuating lever 36 pivoted at 37 and having at its upper end a handle 38 by which said actuating lever may be moved, about its pivot 37 to cause the motor 25 to be lifted until the friction wheel 24 is brought into frictional engagement with the driving wheel 23' thereby causing the rotation of the shaft 21.

The arms 31 and 34 and the shaft 30, formin effect, a bell crank lever pivoted intermediate its ends, it being obvious that the longer arm 34 of the lever might be in alinement with the shorter arms 31 but are offset therefrom as shown in the drawings, for convenience in operating the machine.

As shown in the drawings, the motor 25 is in raised position with the friction wheel 24 thereof contactingwith the driving wheel 23 and the link 35 is in alinement with the actuating lever 36 thereby preventing the lowering of said motor 25 and thus causing the machine to be operated until the handle 38 is moved to the left of Fig. 5 of the drawings thus breaking the toggle connection 35, 36 and permitting the motor 25 to return to its normal lowered position by gravity.

The pivot 37 for the actuating lever 38, is eccentrically mounted in the bearing 39 and has secured to one end thereof a quadrant 40 having a slot 41 therein through which a clamping bolt 42 is adapted to extend into the bearing 39 to lock the eccentric pivot 37 in adjusted position.

By means of this construction the pivot for the actuatinglever 36 may be nicely adjusted so that in the lifting of the motor 25 the alinement of the actuating lever 36 and the toggle link 35 will be assured as soon as the friction wheel 24 comes into sufiicient frictional contact with the driving wheel 23.

The Worm 22 meshes with a worm gear 43 secured to a shaft 44 revolubly mounted in hearings in the standard 20 and having secured to its outer end a gear 45 meshing with a gear 46 secured to one end of and revoluble with a shaft 47 also revoluble in bearings in the standard 20.

The opposite end of the shaft 47 extends through a bearing in standard 11 and has secured thereto a gear 48 meshing with a gear 49 on one end of a short shaft 50 revoluble in a bearing in standard 11.

The opposite end of the shaft 50 has secured thereto, two sprocket wheels 51 and 52.

The sprocket wheel 52 is connected by a chain 53 to the sprocket wheel 15 on the shaft 13 and consequently when the shaft 21 is rotated, rotary movement is imparted to the shaft 13 and the work supports 17 thereon.

.The sprocket wheel 16 is connected in a similar manner by chain 54 to the sprocket wheel 55 on a short shaft revoluble in a hearing in standard 12 and having secured thereto another sprocket wheel 56 connected by a chain 57 to the sprocket wheel 51 on the shaft 50.

By means of these sprocket wheels and chains, the work supports 17 are rotated simultaneously atthe same speed and any annular object such as an automobile shoe supported thereon, will be rotated at a uniform speed about its center.

' A rod 58 opposite one face of the work yoke 63and said yoke is adapted to swing and at one side of the center'thereof, extends upwardly from the base 10 and has a collar 59 adjustably secured to its upper end.

Pivoted to this collar 59 is an arm 60 having at'its free end a stud 61 upon which is revolubly mounted the weighted roller 62 resting upon the annular work immediately above its center.

This weighted roller 62 retains the work in'sufiicient frictional contact with the supporting rollers 17 to insure the rotation of said work about its center when said rollers 17 are revolved by the mechanism heretofore described. o

The arm 60 is free to move about its pivot and consequently when it is desired to remove the work from the supporting members 17 this can easily be accomplished, the

weighted roller 62 swinging with the arm 60 about said pivot during this operation.

Mounted on the shaft 21 is one end of a about the axis of said shaft 21..

At the free end of the yoke. 63 is a revoluble'roller 64 and intermediate the free end of the yoke 63 and the pivoted end thereof is another revoluble roller 65'.

The annular shuttle 66 is adapted to 1'0- ,tate about its center guided by these rollers 64 and 65 and the driving member 23 revoluble with the shaft 21..

The roller 64 revolves about a stud 67 cccentrically mounted in the free end of the yoke 63 and said stud 67 has secured to its opposite end a gear 68 meshing with a worm 69 adapted to be rotated by a wrench applied to the squared end 7 O of said worm.

By turning the worm 69, the eccentric stud67 will be moved about the axis of'said bearing in the yoke 63 and move the rollersupporting end thereof toward and from the axis of the shaft 21 thereby providing means for regulating the frictional contact between said roller and the driving member 23. P

Beneath the yoke 63 andsupported by the base 10, is a socketed member 71 having a long spring 72 therein and in the upper end of the, spring 72 is a headed member 73 bearing against the under face of the yoke 63 This spring 72 has suflicient tension to substantially balance the weight of the yoke 63 and the parts supported'thereby.

The free end of the yoke 63 is provided with a. handle 74 by which said moved about its pivot 21.

Opposite the free end of the .yoke 63 is a curved bracket 75 having preferably formed integral with its upper end, an .ex-

tension opposite and in close contact with one face bf the yoke 63.

' In the upper end of the bracket 75, is a revoluble'member 77 provided with an operating handle 78.

yoke e'nay be This revoluble member- 7 7 extends through the bracket 75 and has its other end threaded to a late 79 which is prevented fromturning a out the axis of said revoluble member 77 by means of dowel pins 80 extending from szaid bracket through openings in said plate proper position, the member 77 is rotated about its axis to cause the plate 79 to be moved towards the extension 76 and to clamp said yoke so that further movement about. its pivot 21 is prevented.

When it is desired .to vary the position of the yoke to accommodate it for different sizes of work, the operator unclamps the yoke 63 by rotating the member 77 and then grasps the handle 74 and moves said yoke into its new position and then clamps the same by means of the clamping mechanism previously described.

The shuttle 66 is annular and is formed in two parts, one part 81 of which forms a gate which is pivoted at 82 to the body portion of the shuttle This gate 81 may be moved about its pivot When the yoke 63 has been moved into 82 to permit the insertion within said shut- I work to be wrapped usually is of considerable weight and difficult to adjust relatively to the shuttle.

By means of the construction herein protoo vided, with the weighth of the yoke and the parts supported thereby substantially balanced by means of the spring 72, the shuttle may be very quickly-and easily centered with the work.

One end of the body portion of the shuttle :66 is provided with a socket '83 in which extends one end of a bolt 84 movable endwise in ears 85 formed upon the inner face of the gate 81.

The opposite end of the bolt 84 is provided with a socket 86 in which is mounted a long spring 87 the outer end of which bears against a headed member 88, the

headed end of which rests in a depression in an ear 89 on the inner faceof the gate- 81 while the opposite end thereof extends into the socket 86.

the side wall of the gate 81 and having on its outer end an operating handle 93.

When it is desired to open the gate 81, the

handle 93 is moved to rotate the pinion 91 ,meshing with the rack teeth 90 and thereby causing the projecting end of the bolt 84 to be moved from the socket 83.

lVhen this has been accomplished, the gate can be swung about the pivot 82.

As soon as the gate has been opened, the operator removes his hand from the handle 93 and the spring 87 returns the bolt 84 to its normal position.

lVhen it is desired to close the gate, said gate is moved about the pivot 82 and the end face 94 of shuttle 66 has such an inclination as to force the bolt 84 inwardly against the tension of the spring 87 until said bolt is in alinement with the socket 83 and then the spring 87 will expand to force the bolt outwardly with its projecting end in the socket 83 causing the gate to be securely locked.

Projecting from one face of the shuttle 66 is an annular flange 95 adapted to receive the strip of wrapping material to be wrapped around the work.

This flange 95 is provided with an open ended slot 96 which provides a. ready means for placing the end of the strip of wrapping material on the flange 95 when the wrapping operation is to commence and through which the strip is adapted tobe fed during the wrapping operation.

The wrapping material in a continuous strip, is drawn by the rotation of the shuttle from an outside source of supply such as the drum 97.

This drum 97 consists of a. sleeve 98 on which the roll of wrapping material is placed with one face thereof in contact with the flange 99 formed integral with said sleeve.

The sleeve 98 rotates about a stud 100 mounted in an extension 101 formed upon a bracket 102 secured to the yoke 63 and movable therewith about the pivot 21.

The bracket 102 has a. post 103 projecting upwardly therefrom on the upper end of which is adjustably mounted a member 104 having a-wall 105 against which the roll of wrapping material is adapted to contact.

This member 104 also has an extension- 106 projecting over the roll of wrapping material and from the end of this extension 106 depends a rod 107 having an outward bend 108 at its lower end.

Thedepending rod 107 is adjacent the outer face of the roll of wrapping material drum 97.

strip passes over a roller 118 to the work to be wrapped, as indicated in Fig. 6.

The roller 118 is re-voluble about a stud 119 supported by the shuttle 66 and is tapered, as indicated at 120, in Fig. 8.

The outer end of the roller 118 is rounded, as indicated at 121 in Fig. 8, and said roller has on its inner face, a bearing member 122 on said stud intermediate the ends of the roller. and so positioned as to permit said roller to tilt and automatically accommodate itself to the various curvatures of the work being wrapped.

This tilting of the roller 118 is of great importance as it has been found in practice that the wrapping material is liable to become torn when the roller is confined to ro-.

tate about a fixed axis.

It is evident that a different condition eX- ists when the material is being wrapped about the greater diameter of an automobile shoe than exists when the material is being wrapped about the inner diameter while still other conditions exist when the material is being wrapped about intermediate parts.

By providing a tilting roller with its 'fulcrum at a predetermined point, said roller is adapted to meet all these conditions and make an even wrapping without danger of tearing the material.

The stud 119 is provided at its outer end with means 119 -to prevent the accidental displacement of the roller 118 from said stud.

The bearing member 122 may be moved endwise in the bore of the roller 118 to accommodate said roller to various widths of strips of wrapping material it having been found necessary to have the fulcrum of the roller nearer one end thereof for narrow strips than for the wider strips of material. I The cylindrical members 115 and 116 are connected together, as at 123, (Fig. 8) and are secured in adjusted position to the shuttle 66 by means of the clamping bolt 124.

The angle of these members 115 and 116 relatively to the path of the strip of wrapping material may be changed at will to vary the tension upon the strip as the shuttle 66 draws the same from the drum 97.

The plat v 117 is positioned between two parallel shoulders 125 formed upon the inwith a slot 126 extending lengthwise thereof through which extends a clamping bolt 127 by which said plate 117 may be retained in aldjusted position relatively to said shutt e 66.

The outer end of said plate 117 has ex tending therefrom; a plurality of rollers 128 perpendicular thereto with their peripheries pf various curvaturees and at different distances from the face of the shuttle 66.

As the strip of material is fed across the plate 117 in the direction of the arrow a, its outer edge will be slightly turned by the first ,roller 128 andv each subsequent roller 128 will give an additional turning of the edge" until the last roller 128 completes the fold and as the strip moves over the tilting roller 118, the folded edge is flattened and ready to be wrapped about the work. I 1

The drivlng member 23 rotated in the direction of the arrow b on Fig. 3 of the drawings, rotates the shuttle in the direction of the arrow 0 on Figs. 3 and 6 of the drawings.

During the rotation of this shuttle in the direction of the arrow 0, the strip S of wrapping material will be wound upon the outer periphery of the annular flange -95, the strip S being prevented from being dislaced from said annular flange 95 by the ip 129 on the outeredge of said flan e.

As the strip S is wrapped aroun the work W, the rotation of the shuttle 66 carrying the roller 118 therewith, will cause the strip S to be drawn through theslot 96 between the tension cylinders .115, 116 then through the folding device 117, 128, and over the tilting roller 118. p

The machine is so constructed that when a suflicient length of strip S has been wound upon the annular flange 95, to completely cover the work W being rotated, the strip S will be severed from the outside source of supply on the drum 97. i

This severing device consists of a knife 130 secured to the projection 114 and over which the strip S of wrapping material is adapted to be fed and a 'coacting knife 131 pivoted at 132 to the projection 113 and frictionally held in any position it may be placed.

The knife 131 is provided ,with a slot 133 concentric to the pivot 132 and tlirough which extends a stop member 134 to limit the movement of the knife 131 about its pivot 132.

The outer free end of the knife 131 is pro vided with a handle 135 by which said knife may be movedupwardly about its pivot leaving a clear passage for the strip S of wrapping material between the upper face of the knife 130 and the lower edge of the movable knife 131.

'Coacting with the movable knife 131 is a knocker lever 136 ke ed or otherwise secured to a sleeve 137 a apted to be oscillated about a stud 138 secured to and projecting laterally from bracket 102.

The sleeve 137 has also keyed or otherwise secured thereto, a bell crank lever 139, the upper end of which has pivoted thereto, a stop pawl 140- coacting with a ratchet wheel 141 rotatable about a stud 142 secured to and extending laterally from the bracket 102.

This stop pawl 140 is retained in engagement with the ratchet 141 by means of a spring 143..

The other arm of the bell crank lever 139 is provided with a swivel connection 144 from which a link 145 extends to one end of a rockerv plate 146 pivoted at 147 to a projection extending laterally from the bracket 102.

The pivot 147 on the plate 146 is midway the ends thereof and these ends have slotted studs 148 mounted therein to which the opposite ends of a. brake band 149 are secured.

The brake band 149 passes around an annular beaded flange 150 on the rear side of the drum 97.

The upper arm of the bell crank lever 139 has formed thereon a cam projection 151 in the path of a in 152 pro ecting from the face of the rate et wheel 141.

As the ratchet wheel is rotated aboutits pivot 142, the pin 152 will contact with the cam projection 151 and move said bell crank lever 139 about its ivot 138.

This movement of the bell crank lever 139 will be transmitted through the link connection 145 to the rocker plate 146 and cause arrow (1 on Fig. 3 of the drawings, thereby applying a brake to the drum 97 and preventing further rotation thereof about 1ts pivot 100.

It is obvious that inasmuch as the knocker lever 136 is secured to the same sleeve 137, as is secured the bell crank lever 139, this same movement of the lever 139 will be imparted to the knocker lever 136 and cause it to move the movable knife 131 downwardly across the edge of the fixed knife 139 and sever the strip S of wrapping material.

In other words, when a suflicient length of wrapping material has been fed to' cover the work W being wrapped, the strip S 1 s severed and at the same time a brake is applied to the drum to prevent a furtherfeeding of the wrapping material from the outside source of supply.

The ratchet wheel 141 is rotated by means of a pawl 153 pivotally mounted upon the end of a bell crank lever 154 pivoted at 155 to the bracket 102 and having its lower arm provided with a roller 156 adapted to coact with a cam 157 on the shuttle 66.

the latter to be moved in the direction of the The pawl 153 has a cam extension 158 between which and a pin on the bell crank lever 154 is a spring 159 to retain the pawl 153 in engagement with the ratchet wheel 141 under normal conditions.

i The bell crank lever 139 is provided with a pin 160 coacting with the cam extension 158 and when the bell crank lever 139 is moved about its pivot, as previously described, the pin 160 cont-acting with the extension 158 will move the cam 153 about its pivot and disengage it from the ratchet so that no further movement can be imparted to the ratchet until the machine is ready for another operation.

As soon as the pawl 153 has been disengaged from the ratchet 141 the spring 180 will return said ratchet to its normal position, said spring having one end extending into the head of stud 181 and the other en in the ratchet 141.

When the work W has been wrapped and a new piece of work W has been placed upon the supporting rollers 17, the operator grasps the handle 135 of the movable knife 131 and moves it upwardly so that the severed end of the strip S of wrapping material on the drum 97 may be inserted between the projections 113, 114 through the slot 96 in the flange 95 between the tension members 115, 116, then across the folding mechanism 117 and over the roller 118 to the work W.

hen this has been accomplished, the machine is ready to be started for another wrapping operation inasmuch as the lifting of the movable knife 131 will oscillate the knocker lever 136 and the bell crank lever 139 and return the various parts of the severing mechanism to their normal positions and at the same time release the brake band 149 so that the drum 97 is again free to rotate.

With each rotation of the shuttle 66 the cam 157 thereon will impart movement through the bell crank lever 154 to cause the pawl 153 to move the ratchet wheel 141 one tooth.

It must be understood that the ratchet wheel 141 is provided with such a number of teeth as to cause the pin 152 to strike the cam 151 and oscillate the bell crank lever 139 when a sufiicient length of material has been fed to the flange 95 on the shuttle 66 to completely cover the work WV being wrapped.

By means of this severing device positioned' between an outside supply of wrapping material and the annular shuttle, a large roll of wrapping material may be mounted upon the drum 97 and cut off as used into predetermined lengths sufiicient to cover the work WV when wrapped by a plurality of helical winds.

By such a construction there is no waste of material.

vided with segments of gears 165, the teeth of which intermesh as indicated in Fig. 9 of the drawings.

The upper ends of the curved levers 164 are provided with inclined hubs 166 having studs 167 projecting therefrom and secured thereto. I

Surrounding the studs 167 are anti-friction bearings 168 carrying rollers 169 adapted to bear against the beaded ends of the autmobile shoe'being wrapped, as indi cated in Figs. 9 and 11 of the drawings.

The fulcrum members 163 extend through a connecting plate 170 pivoted intermediate its ends to a bell crank lever 171 pivoted at 172 to the yoke 63.

The opposite end of the bell crank lever 171 is pivoted at 173 to a link 174, the opposite end of which is pivoted to a bracket 175 secured to the base 10. 7

As shown in Fig. 9 of the drawings, the fulcrum members 163 are both at the righthand ends of the slots 162 but when the yoke 63 is moved downwardly to center the shuttle with a shoe of smaller diameter, the bell crank lever 171 will be moved about its pivot 173 and by means of the connecting plate 170 the fulcrum pins 163 will be moved along the slots 162 to the left-hand ends thereof.

By means of this construction, the rollers 169 are in proper position to close the beads of the automobile shoe in whatever position the yoke 63 may be moved.

One curved lever 164 has an arm 176 to the lower end of which is connected one end of a link 177 the opposite end .of which is' pivoted at 178 to the starting lever 36.

The curved levers 164 are connected by a contracting spring 179 which retains the ball members 169 in contact with the beaded ends of the automobile shoe whenever the operating lever is moved about its fulcrum 37 to start the machine.

In the position shown in Fig. 9 of the drawings, the ball members 169 are shown in the position assumed when the wrapping of the shoe is being accomplished.

If, however, the operating lever 36 is moved in the direction of the arrow 6, in Fig. 9 of the drawings, to stop the machine by breaking the contact between the friction wheels 23 and 24. the levers 164 will be Cal moved about the axes of the 'fulcrumpins 163 thereby permitting the beaded ends of the shoe to assume their normal open position.

In order to avoid confusion in the drawings, no attempt has been made to show the bead-closing mechanism in the general views of the drawings.

When it is desired to wrap the work W with a strip of material S, the edge of which has not been folded, the. plate 117 with its edge-folding rollers 128 may be removed from the shuttle 66 by first removing the clamping member 127 extending through the slot 126. t g

It is evident, therefore,- that with the present} invention, the work W may be wrapped by a strip S with or without a folded edge which is of considerable advantage. for while it may be desired to wrap many classes of work with a folded plain strip of wrapping material, there are other classes of .work which may be wrapped to advantage. with a strip,S lacking this folded edge.

When the pawls 140 and 153 have both been disengaged from the ratchet 141, said ratchet will be returned to its normal position by means of the spring 180 surrounding the stud 181 one end of said spring being anchored in the head of said stud 181 while the other end is anchored in the bracket 102 in which said stud is revolubly mounted.

The ratchet 141 is keyed or otherwisesecured to said stud and rotates therewith.

When the strip 0 wrapping material is being unwound from the drum 97, the depending rod 107 will be prevented from moving therewith about its pivot by :means of the projection 111 contacting with the stop pin 110.

The stud 119 is preferably provided with a flange 182 between which and'the nut 119 the roller 118 is free to tilt on its fulcrum 122.

The stud 119 is threaded to the car 183 on shuttle 66 as indicated in Figs. 8' and 12, and may be adjusted endwise relatively thereto by rotating said stud about its axis.

When adjusted into proper position said stud 119 is locked in position by the nut 184 on the threaded end 185 of said stud.

By means of this construction the roller 118 may be adjusted to accommodate itself n to all widths of wrapping material.

It is believed that the operation and many advantages of the invention will be understood without further description.

Having thus described my invention, I claim- 1. In a wrapping machine, in combination, mechanism for'feeding a strip of wrapping material to. the work and wrapping the same thereabout, means for relatively traversingthe' work and wrapping mechanism as the wrapping progresses, and means controlled by .the wrapping operation of said wrapping-mechanism for cutting said strlp. Q

2. In a wrapping 1nachine,-in combination, mechanism for feeding a strip of wrapping mechanism to the work and wrapping the same thereabout, means for cutting said strip, mechanism for controlling the time of operation of said cutting means including a member progressively moved toward operatlve position by said wrapping mecha-- ing said member to its starting position when said cutting mechanism is operated.

3. In a wrappingmachine, in combination, means for supporting and moving the work, mechanism for wrapping a strip of wrapping material about said work as it is moved, said mechanism including a rotatable annular shuttle and means for rotating the same about the work, and mechanism controlled by the rotation'of one of said last named parts during the wrapping operation for cutting said strip at a predetermined time.

4. In a machine of the class described, a work support; an annular shuttle through which the work is adapted to be moved; a drum removed from the shuttle and provided with a supply of wrapping material in a continuous strip; means on the' shuttle for drawing said strip from said drum; means interposed between said shuttle and said drum for severing said strip; and a cam on said shuttle for actuating said severing devlce. U

5.- In a machine of the class described, a work support; an annular shuttle through which the work is ada ted to be moved; a drum removed from t e shuttle and provided with a supply of wrapping material in a continuous strip; means on the shuttle for drawing said strip'from said drum; a brake mechanism for saiddrum; means interposed between said shuttle and drum forsevering said strip; and means operable by the movement of the shuttle for actuating .said brake mechanism and severing device simultaneously. j

6. In a machine of the class described, a

nism, and means for automatically returnwork support; an annular shuttle through' which the work is adapted to be moved; a drum removed from the shuttle and provided with a supply of wrapping material in a continuous strip; means on the shuttle for drawing said strip from said drum; a brake disk on said drum; a brake band thereon; a fixed support; a pivoted lever the opposite ends of which are connected to the opposite ends of said brake band; means interposed between said shuttle and drum for severing said strip; and means operable by the movement of said shuttle for actuating said severing device and simultaneously moving said brake band lever about its pivot to prevent further rotation of said drum.

7. In a machine of the class described, a work support; an annular shuttle through which the work is adapted to be moved; a drum removed from the shuttle and provided with a supply of wrapping material in a continuous strip; means on the shuttle for drawing said strip from said drum; mechanism for relatively traversing said shuttle and work support for rotating said shuttle; a frame having separated lateral projections; a knife blade secured to one projection; a movable knife blade; mounted upon the other projection and adapted to coact with the first knife blade; and a mechanism controlled by the rotation of the shuttle for actuating said movable blade when 'material has been fed suflicient to wrap the work. 5

8. In a machine of the class described, a work support; an annular shuttle through which the work is adapted to be moved; a drum removed from the shuttle and provided with a supply of wrapping material in a continuous strip; means on the shuttle for drawing said strip from said drum; a cam on said shuttle; a pivoted lever adapted to be moved about its pivot by said cam; a ratchet; a pawl carried by said lever and engagingisaid ratchet; a roller carried by said ratchet; a cam lever in the path of said roller; a fixed knife; a movable knife adapted to coact therewith; and a lever for actuating said movable knife provided with a cam in the path of said ratchet roller.

9. In a machine of the class described, a work support, an annular shuttle through which the work is adapted to be moved, a drum removed from the shuttle and pr vided with a supply of wrapping material in a continuous strip, means on the shuttle for drawing said strip from said drum, a brake mechanism for said drum, means in.- terposed between said shuttle and drum for severing said strip, and means for actuating said brake mechanism and severing device simultaneously? 10. In a machine of the class described, in combination, a work support, an annular shuttle rotatable about the work on said support, a drum removed from the shuttle for supplying a strip of wrapping material thereto, means for relatively moving said shuttle and work support to cause said strip to be wound helically upon the work, a cutter for severing said strip, a brake for said drum, and means controlled by the rotation of said shuttle for simultaneously operating said cutter and brake.

11. In a machine of the class described, a device for severing the wrapping material consisting of a knife having at its outer end a handle and provided with a transverse slot; a lever for moving said pivoted knife about its pivot; a fixed part extending into said slot to limit the movement of said knife about its pivot in opposite directions; and automatic means for actuating said lever at a predetermined time.

12. In a machine of the class described, a work support; an annular shuttle movable about its center and through which the work is adapted to be moved; a pivoted shuttle support; a. revoluble drum mounted upon the shuttle support and provided with a supply of wrapping material in a continuous strip' adapted to be fed to said shuttle; a brake for said drum; and means mounted on the shuttle support for severing the strip of wrapping material and applying said brake.

13. In a wrapping machine, in combination, a work support, a shuttle mechanism including a shuttle and means for rotating the same about the work, means removed from said shuttle for supplying a strip of wrapping material thereto, a cutter for severingvsaid strip, means including a ratchet for controlling and operating said cutter, and a pawl periodically operated by said shuttle mechanism for moving said ratchet.

14. In a wrapping machine, in combination, a work support, shuttle mechanism comprising a. shuttle member and a member for rotating the same about the work, means removed from said shuttle mechanism for supplying a strip of wrapping material thereto, means for severing said strip, and means for actuating said severing means, said actuating means being progressively moved toward operative position by one of the members of said shuttle mechanism dur ing the Wrapping operation.

Signed by me at 294: lVashington St, Boston, Mass, this 20th day of June, 1921.

GEORGE IV. PROUTY.

Witnesses:

WALTER E. LOMBARD, NATHAN C. LOMBARD.

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