US2484701A - Box head labeler - Google Patents

Description

M. W. FLYNN BOX HEAD LABELER Oct l1, 1949.

7 Sheets-Sheet l Filed June 19, 1945 MSN @QN NNN MSN

INVENT'OR MELVIN w: FLYNN BY Y ATTRNEYS Oct. 1l, 1949. M.- w. FLYNN Box HEAD LABELER '7 Sheets-Sheet 2 Filed June 19, 1945 mi. h1.

.lNvNToze vMuLLvlrN MFLYNN BY um,

'ATTORNEYS' Oct. ll, 1949.

Filed June 19, 1945 M. W. F LYNN BOX HEAD LABELER 7 sheets-sheet s AT TOENEYS I M. w. FLYNN 1 2,484,701

BOX HEAD LABELER oct. 11, 1949.

Filed June 19, 1945 '7 Sheets-Sheet 4 ATTORNEYS Oct. 11, 1949. M. w. FLYNN BOX HEAD LABELER '7 Sheets-Sheet 5 Filed June 19, 1945 INVENTR ME'LVN, PV FLYNN BY' hm, uw LW ATTORNEYS Oct. 11, 1949. M w, FLYNN 2,484,701

BOX HEAD LABELER Filed June 19, 1945 '7 Sheets-Sheet 6A INVENTOR MELVIN WI FLY/VN ATTORNEY Oct. 11, 1949. M. w. FLYNN BOX HEAD LABELER '.7 Shets-Sheet '7 Filed June 19, 1945 l Lajkwww www .ATTORN EYS Patented Oct. 11, 1949 UNITED STATES PATENT OFFICE BOX HEAD LABELER Melvin W. Flynn, San Francisco, Calif.

Application June 19, 1945, Serial No. 600,295

(Cl. 21S-52) 11 Claims. 1

An object of my invention is to provide a box head labeler that is automatic in operation, the device removing one shook at a time from a feed magazine and applying a label to the shook before transferring it to a stacker. All the operator needs to do is to supply unlabeled shooks to the feed magazine and to remove labeled shooks from the stacker. He must also keep a stack of labels on the label-supporting platform.

A further object of my invention is to provide a device of the type described in which means is provided for accommodating shooks of different sizes and thicknesses and for accommodating labels of different sizes.

A still further object of my invention is to provide a device in which a label is fed to the label applying means only when a shook is in position to receive the label.

Other objects and advantages will appear in the following specification, and the novel features of the device will be particularly pointed out in the appended claims.

My invention is illustrated in the accompanying drawings forming a part of this application, in which:

Figure 1 is a side view of the entire machine;

Figure 2 is a top plan View of the machine;

Figure 3 is a side elevation of the opposite side of the machine from that shown in Figure 1;

Figure 4 is a longitudinal section through the entire machine and is taken substantially along the line 4-4 of Figure 2;

Figure 5 is a transverse section on an enlarged scale taken along the line 5 5 of Figure 4;

Figure 6 is an enlarged side elevation of the portion of the machine shown in Figure 5, the arrows 6-6 on Figure 5 indicating from which side the machine is viewed;

Figure 7 is an enlarged sectional view of the shook stacker mechanism taken along the line '1 -'l of Figure 2, and shows the stacker table in lowered position;

Figure 8 is a view similar to Figure 7, but shows the stacker table in raised position;

Figure 9 is an enlarged detail of a portion of the stacker when looking in the direction of the arrows 9-9 in Figure 7, and sets forth one of the shook supporting dogs;

Figure 10 is an enlarged transverse section taken along the line I-I on Figure 4 and shows the label arresting and positioning mechanism;

Figure 11 shows an enlarged view of a portion of the label arresting and positioning mechanism and is taken substantially along the line II-II of Figure l0 with the nearest frame side removed and the cam being indicted at its high point;

Figures l2 and 13 are views similar to Figure 11, Figure 12 showing ythe cam at the half-way 2 point, and Figure 13 illustrating the cam at its low point;

Figure 14 is an isometric View of the shook supporting dogs; and

Figure l5 is an isometric view of the stacking table.

While I have shown only the preferred forms of my invention, it should be understood that various changes or modifications may be made within the scope of the appended claims without departing from the spirit and scope of the invention.

In carrying out my invention, I provide a main supporting frame indicated generally at I and this frame has a shook feeding magazine l0 at one end and a stacker magazine for receiving labeled shooks disposed at the other end. Unlabeled shooks 56 are placed in the feed magazine l0 and are delivered to the stacker magazine by a mechanism now to be described, the shooks in passing from the feeder to the stacker having labels applied thereto.

I will first describe the feed magazine. In Figure 4 it will be noted that the magazine comprises a shook-receiving hopper indicated generally at l0 and the hopper has a bumper plate I I at one end and spaced flushing plates I3 at the other end. The shooks are manually fed into the hopper and abut the bumper plate Il and then they are lowered into position. The opposite edges of the shooks strike the curved portions of the flushing plates I3 and are brought into proper register so that the shooks will be horizontally arranged and will be aligned one above the other in the hopper. The bumper plate Il is held in place by both sides of the main supporting frame I. The bumper plate II is provided with slots for bolts I2 so that the hopper side members Illa may be adjusted toward or away from each other Jto accommodate shooks of different lengths.

Figure 4 shows the flushing plates I3 secured to the side members 10a by bolts I4, which may be adjusted forward or backward'in slot Ida to accommodate different widths of shooks.

The lowermost shook in the hopper I0 rests on a carrier 6 that extends throughout the greater length of the machine. Figure l0 shows the carrier 6 as being angle bars. Endless chains 5 are mounted on sprockets 4 and 4a disposed at opposite ends of the carrier and the sprockets in turn are mounted on shafts 2 and 2a that are rotably carried by the sides of the frame I. The upper reaches of the chains 5 ride in the angle bars of the carrier E. Referring to Figure 4, it will be seen that a motor and reduction gears, indicated generally at 3, are operatively connected to the shaft 2a by a sprocket chain or belt, indicated generally at 2b. A connecting of the motor 3 to a source of current will cause the sprocket chain 2b to move the endless chains 5.

` the chains act as timing chains.

There are two sprockets 4 mounted on the shaft 2, and two sprockets 4a mounted on the shaft 2a. There are two endless chains 5 which are passed around the pairs of sprockets and Each chain 5 carries a plurality of lugs 9 and these lugs engage the lowermost shook in the hopper I0., and remove it from the hopper and move it along the carrier 5. In this way one shook `at a time is removed from the bottom of the .stack of shocks.

The carriers 6 are fastened 'to the-'transverse angles l, which are attached to the sides of the frame I. Lugs 6a on the carriers 6 receive bolts 8 vwhich also pass through slots Ia in the transverse' angles. The carrier rIi may be adjusted laterally7 in the manner to accommodate `various sized shocks. The sprockets 4 and 4a may be moved laterally by loosening their set screws.

IA 'will now describe the vmechanism for applying a layer of adhesive to the upper surface of each shook 'as lit is moved by the chains 5 `along the carrier 6. Again referring to Figure 4, it will be 'noted that I provide a receptacle II for holding a quantity of adhesive. This receptacle is positioned adjacent to the bumper plate II. A rubber roller I6 mounted on a shaft 85 has the lower portion of "its periphery immersed in the ladhesive so 'that a rotation of the roller in a counterclockwise direction as shown will cause the roller to pick up adhesive on its periphery. A scraper I8 is adjustably positioned with respect to the periphery of the roller I6 by bolts I9 so 1nat a layer of `a given thickness will remain on the roller as the periphery portion passes the scraper.

A second rubber roller I5 contacts with the periphery of the first roller I6 and also contacts with the upper surface of a shook 56 which passes under the roller I5. The peripheral speed of the roller I5 is the same as the forward moving speed of the shook and therefore a uniform layer of adhesive will be applied to the entire upper surface of the shook.

The particular mechanism for rotating the rollers l5 and I6 is shown in Figure 3. The shaft Se projects through one side of the frame I and has a sprocket 86 mounted thereon. The roller I5 is mounted on a shaft l38 that has a sprocket 89 mounted thereon. A sprocket chain 8l passes around the .sprockets V86 and 89 in the manner Yshown and this 'chain also passes around asprocket 99 and a 'sprocket 9| for a purpose hereinafter described.

The sprocket 9| is mounted on a shaft 32| and this shaft has a sprocket 32 mounted thereon as shown in Figure 4 and disposed on the inner side of the frame I. The sprocket 32 on shaft 3l is operatively connected to the shaft 2 by a sprocket `chain '33 and a `sprocket 4b on shaft 2 similar to the sprocket 4, see Figure 2. In this way continuous rotational movement is imparted to the rollers I5 Aand I 6.

After the shook receives a layer 'of adhesive on its upper surface, the shook 'passes on and receives 'a label. I will now describe the label feeding mchanism and will set forth the 'means Vfor preventing va label from being fed until there is a shook in position to receive the label. Again referring to Figure 4, it lwill be seen 'that I provide a feeder 'table '20 adjacent to the rollers 195 and I6 and this tab-le extends between 'the sides lof the frame I. On the table 29 I dispose a plurality of labels 2I. These .labels are removed 'one at va time 'by "a mechanism that will feed a label for each shook that has previousli7 been coated with a layer of adhesive on its upper surface.

Referring to Figures 4 and 6, it will be seen that an arm 23 is mounted on a sleeve 24 and this arm has a pair of friction pads "I5, see Figure 5, mounted in casings 'I6 which in turn are pivotally secured to the free end of the arm 323 by pins 11a. The friction pads 15 rest on the uppermost label 2| and therefore a movement of the arm 23 to the left in Figure 4 will remove the uppermost label from the stack of labels supported by the table 29.

The arm 23 is reciprocated in a longitudinal direction by a slide 36, see Figures 1 and 6. The sleeve 2t is rockably mounted on a rod 25 which extends through a slot 36a in the side ofthe frame I. Rollers 3l are carried by the same frame side and are received in slots 31a provided in the slide 36. This arrangement will hold the slide 36 in a horizontal position during its reciprocation by a mechanism now to be described.

A lever 35, see Figure 6., is pivotally mounted on the side of frame I at 39 and the lever has a slot 35a at its upper end for receiving the end of the rod 25 that projects through the frame and through the slide 36, to which it is rigidly attached. The lever is rocked about the pivot 39 by a pin ill on a sprocket 49. As the sprocket 49 rotates in a counterclockwise direction, the lever 35 is actuated for reciprocating the slide 36 and the arm 23.

I provide means for causing the arm 23 to have its friction tabs 'I5 engage with the uppermost Ylabel 2i when the arm is moved to the left in Figur-es 4 and 6 and to be raised above the stack of labels on its return movement. It will be seen that the sleeve 24 is rockably mounted on the rod 25 which in turn is reciprocated by the slide 36. lThe sleeve 24 receives its reciprocatory movement by the reciprocation of the slide 36, but the sleeve is rocked on its supporting rod 255 by an arm 26 that is rigidly secured thereto and Acarries a roller v2I at its lfree end, this roller riding on a horizontal portion of a vertical movable cam follower 28.

Figure 6 shows the cam follower provided with vertically extending slots 28a, that receive guide pins 26o, which in turn are carried by the vinner side #of 'the rigi-rt-h'and frame member I shown in Figure 5. The sprocket 4B is mounted on the shaft 3f! and the sam-e shaft Ycarries a cam 3B. A cam roller 29, carried by the lower end `of the cam follower 23, rides on the cam 39 and the high point of the lcam .39 `is so arranged with respect to the position of the pin 1 'I 'upon the sprocket @Il that as soon as the arm 23 completes its movement to the left in Figure 6 for removing the uppermost label, the high point of the cam will raise the cam follower 28 and swing the -arm 26 a clock-wise direction for swinging the arm -23 in the same direction and raising the rubber pads "I5 above the stack of labels. The cam 39 will .hold the cam follower .2S in this raised position during the return movement of Vthe .arm 23. The cam 30 will permit the cam follower 23 to lower just before the .arm 23 starts .its next movement to the .left and this will .br-ing the .rubber .pads 15 into engagement with the next label for removing this from the pile or stack of labels.

It will be seen from Figures A5 and k6 that the cam 3,'9 ha's an auxiliary portion or adjustment member 4I mounted on vlthe .same shaft l3| and adjustably connected to the cam 30 by a bolt 42. The adjustment member 4| has an arcuate slot that receives the bolt 42 and this permits the member to be adjusted angularly with respect to the cam for altering the time at which the cam follower 28 will permit the arm 23 to lower. This feature adapts the device to handle labels of different widths.

I also provide means for preventing the arm 23 from removing a label when the machine fails to move a shook into a position to receive the label. Again referring t Figure 5, it will be seen that I provide an auxiliary shaft 45 that is rockably mounted between the sides of the frame This shaft carries an arm 43 which in turn supports a roller 44 and is placed in the path of the shook 56. When a shook is in position to receive the label, the arm 43 will be rocked downwardly by the shook engaging with the roller 44 and the rocking movement of the arm will cause the shaft 45 to rock a second arm 46 and to move the free end of the latter arm out from under a projection 28e carried by the cam follower 28. When the arm 46 frees the projection 28o, the cam follower 28 can move downwardly as the cam 38 revolves. Should no shook be present to receive a label, the arm 43 will remain in raised position and the arm 46 will hold the cam follower 28 in raised position. This will keep the arm 23 in raised position during its movement to the left in Figure 6. The pads 15 will be held in spaced relation above the top label and no label will be removed. A torsional spring 13 is used for yieldingly holding the arm 43 in raised position.

The sprocket 40 is rotated by the shaft 3|. Figure 3 shows the shaft 3| carrying the sprocket 9|. As already stated, the shaft 3| is rotated by the sprocket 32 and chain 33. The timing is such that one label will be removed from the stack of labels for each shook that passes over the arm 43.

In Figure 4 I show how the label is conveyed from the stack of labels to endless conveyor belts 22 which are passed around a shaft 84 and around a second shaft 61. The shaft 84 is rotated by the sprocket 98 and by the chain 81, see Figure 3. The upper reaches of the belts 22 are inclined downwardly at an angle so as to carry the label toward the shook that has received a layer of adhesive. The shaft 84 has contacting rollers 82 mounted on a shaft 83 so that when the label is fed between the rollers 82 and the shaft 84 by arm 23, the label will be carried forward by the rollers 82 and belts 22.

I provide novel means for holding the label 2| in position for the shook and to align it with the shook as it passes under the shaft 61. In Figure 11 I show a shaft 68 that carries guide holders 62 and these guide holders have guides 63 adjustably mounted thereon and held in place by bolts 64. The lower ends of the guides 63 are set slightly above the upper surface of the shook 56. Figure 10 shows the shaft 68 supported by the sides of the frame I. The portion of the shaft 60 projecting beyond the left-hand side of the frame in Figure 10 carries an eccentric 6| and an eccentrcally mounted pin 69. A tripping arm 41 is Ymounted on the shaft 5| on the left side of the frame I and has a hook 41a designed toA engage with the pin 69. Figure shows the shaft 5| supported by the frame and carrying an arm 51 on the right side of the frame. The arms 41 and 51 carry a shaft 65 and the sides of the frame are slotted to permit a swinging movement of the shaft 65 toward and away from the shook 56.

lThe shaft 65 carries rubber rollers 6 6 that are contacts a cam 48 which is adjustablyvsecured to a sprocket 53 by bolts 49. The sprocket 53 is rotated by a sprocket chain 58 that is passed around the sprocket 48 so that the movement of the arms 41 and 51 will be in accordance with the movement of the arm 23.

The timing is such that the high point of the cam 48 will engage the cam roller 52 to keep the rollers 66 above the strips 68 until a label 2| is fed to the stop guides 63, see Figure 11. When the shook 56 reaches a position adjacent to the stop guides 63, as in Figure 12, the cam roller 52 will be moving from the high point on the cam to the low point and a spring 54 connected to the tripping arm 41 and to a bolt 55, urges the arm's 41 and 51 into a position where the roller 66 will press the label 2| down upon the shook 56. As this movement of the tripping arm 41 takes place, the hook-shaped end 41a will contact with the pin 69 and will rock the shaft 68 for swinging the guide stops 63 away from the end of the label as shown in Figure 13.

The length of the arm 41 is much greater than the length of the eccentric 6|, so that the stop guides 63 will be quickly moved out of place. The rollers 66 are now yieldingly held down upon the label 2| and will press the label upon the upper surface of the shook that has already received a layer of adhesive. The label will therefore be properly applied on the shook. At the completion of applying the label to the shook, the high point of the cam 48 will again swing the cam follower 52 and cause the arms 41 and 51 to raise the rollers 66 into the position shown in Figure 11 and this will permit the stop guides 63 to return to their vertical position by means of gravity and be ready to stop and position the next label.

In Figure 4 I show a rubber roller 94 for pressing the label down upon the shook and for smoothing out any wrinkles. The roller 94 is mounted on a shaft 95 and Figure 3 shows the shaft carrying a sprocket 96 that meshes with a sprocket chain 93. The sprocket chain 93 is passed over a sprocket 92 that is mounted on the shaft 2a. The chain 93 also passes over a sprocket 1| that is rotatably mounted on the shaft 5| and around a sprocket 91 that is mounted on a shaft 98.

I will now describe the mechanism for moving one labeled shook at a time into the shook stacker. Figure 4 shows the shaft 98 carrying a cam 99, see also Figures '7 and 8. A stacker table |81 is disposed at a point to receive a labeled shook when a cam roller ||4 rides on the low point of the cam 99. The cam roller ||4 is mounted on a pin ||5 which in turn is secured to a vertically movable arm that is square in cross section. The arm slides in a bearing I2 that has a square bore and the top of the arm supports the platform The platform |01 is shown in Figure 15 and it will be seen that the platform has angle plates |09 adjustably secured to the platform by bolts ||0. The plates can be positioned to support shocks of different sizes. The shocks are moved by the chains 5 so as to rest on the tops of the angle plates |09. Only one shook is received at a Y time. j

Memos 7. llgflt'era Vshook has' been moved vonto the table If-I While the latter is in its lower position, the cam 9f9-will raise the table to li'ftthe shook into thedotted line position shown in Figure 8. 'The stacker carries vertically extending angle-shaped corner Ymembers IITI and H8 and the shook is lifted so `as to be received 'between 4these lcorner members or arms. vEach pair of members lII and 15H3 c'arry spring-pressed dogs H5, see Fig-- ure 9, these dogs -being held "in closed position iby leaf springs IIS that are :secured to the rarngle bybolts |213. 'i

lFi-gure 14 shows a perspective View of one of the dogs I Ill and the ldog is free to slide in a slot IIlra provided in the arm and the spring yieldingly holds the dog so ithat it will project "into the recessjiormed bythe arm. 'the shook is raised by the platform IU?, the `dogs H6 will -be moved outwardly and then "when the shook clears the dogs', the springs H9 'will snap them back into a position to support the-shook. The lcamfSS can now ylovver the platform to receive the next shook. The stacker 'is supplied with shocks one at a time bythe plat-form for ea-c'h'yrotation of the cam 99. The timing of the cam is 'such that the platform will 'be raised once 'for `each time Ia shook fis jreceived.,

yFrom the foregoing description of the various par-ts of the dev-ice, the opera-'tion thereof maybe readily understood.

'The unlabeled shocks are placed infthe hopper Iii'an'd the size of the hopper is adjusted to accommodate the size of the shook. Figure 1 also shows the vmotor 3 mounted on va hase plate IEBS and .secured -to longitudinally'extending bars Illli by bolts fm2.. The rods It connect the sides of the frame I together and receive nuts 105.

The shooks 'are fed one at a time A'from the hopper 'l0 to the endless chai-n B and the `lugs Q -on the chains '5 to remove the lowermost shook from the stack. vThe top surface oi each shook is vgiven a layero 'adhesive by the roller I5 and Vwhen the shook reaches a position adjacent to the stop guides a label IkZI is applied'to the shook "by the` rollers f't. 'I have already set forth the mechanism that prevents a 'label 'from leaving t-he strips 6.8 until a shook 5t" is in -a posi-tion to receive the label. riii-e movement of the arm 23 and the rubber pressure pads "i9 can be adjusted to accommodate labels ofvdifferent sizes andthe stop guides S3 can be vertically adjusted to accommodate shocks of diffe-rent thicknesses. After the label is applied to the shook, a roller @d presses the'l-abelon 'the shook, smooths out any wrinkles, and removes any air pockets that may prevent the label 2l from adhering to the shook.

The labeled shook is delivered by the vchains 5 and lugs 9 to the stacker table I''l'l when the latter is in its lowermost position. The cam '9'9 raises the vtable and forces the shook `above the dogs -I I5, which move into inoperative position to permit the shook to pass and then snap back into operative position to support the shook. The stacker can hold a large number yof labeled shocks and-'these can be removed by `an operator as needed.

The angle members Ill! and IIS of the stacker are adjustable to yaccommodate shooks of the desired size. Figure 2 shows the angleA members `I l?V provided with lug-s i122 and bolts I 23 for Asecuring the lugs in adjusted position on a transversely extending angle bar `i2 I. The bar has slots -l2`3a for receiving the bolts 123, The sides of the stacker :angles lparalleling 'the sides of "the frame I extend below the angle bar I2I and are curved outwardly at '1li ta, see .Figures 7 Land :8., to .guide the shook *5B laterally :as vthe shook Lis moved upwardly should this be necessary. ..-:"111es'tacker .angles H8 have lugs y|2' thatl'est on a transversely extending 1bar i241 andthe Ibar has slots 121' for receiving 'bolts .I 25 :for ksupporting the stacker angles in adjusted position. .Figure 2 shows the 'sides oi the :stacker .angles that para-Ilel'sthe sides of :the frame l :as being vflared Lout- Wardiy as shown :at t28 and .the flared vportions face the shookulo as .it moves v.over the chains .5 onto the platform H37. The ared ends |28 adjust the shook laterally during the substantially horizontal and lori'giitudinal movement of the shook onto the `platform lill.

Inflligures fand 3 I show the ends of the bar 1:24 extending -at right angles .and connectabl-e 4:to the sides o'f the frame I by bol-ts 1:29. The sides o' 4the fram-e :l have la 'plurality of openings ISll for receiving kthe .bolts I2@ and this permits the bar 121i -to be adjusted toward or away from the bar yI.-2I,.to accommodate diierent size shooks.

' The adjustment member M, `see Figure 6, adapts the ai=m-23 to handle labels of diile'rent sizes. Som-e labels may Abe only two inches 'wide and under Isuch va condition, 'the arms 23 Willsontact the label and move it about lone inch. The larg-er the size of labels used, the greater 4the number that .can be .stacked on the feeder table 2B. 'The peripheral 'speed of the 'rollers 6d will .be the same as the'forwardspeedoi the shook. Thus the label pressed :smoothly upon the shook Without any tendencyfof the label turning or 'being applied 11n-evenly to the shook. The shaft B5 is revolved by the meshing gear 59 'mounted thereon, and the gear l'53,-attaohedto the gear? I, is rotatably mounted `on the shaft 5 I'. The peripheral speed of fall rollers that v.come into "contact `with the shocks, y as they arev carried valong vlune endless chains 5 by lugs 9, will be the same as the for- Ward fspfeed of the shook, to .eliminate any unnecessary Wear or friction.

' ol'aimt 'v I Ll. ."Ina machine ofthe type described, ya member tor holding .a stack .of labels, a reciprocable arm ioriifeniov'ng one label at a time from the stack, label-conveying mea-ns :for .receiving the removed label, :label-positioning and holding means cooperating With'the 'label-'conveying means for holding the label :in a predetermined position, means /or moving a shook lunder the label-holding means, and including -ineans -ior releasing the label-holding means from the label when ythe shook is in apo'si-tion to receive the label, and means for pressing the label :down-upon -the shook.

In ra mach-ine of the typedeseribed, a member lfor holding a lstack 'of labels, a reclprocable arni'for removing one label at a time Afrom the s'taclL'label-conveying means for receiving the removed l-abel, 'label-positioning and holding means cooperating' with the label-conveying means for hol/ding 'the label 'in a predetermined position, means for moving a shook under the .label-holding means, and including means iorreleasing vthe label-holding means from the label When `the shook is ln fa position `to receive the label, means for pressing'the labelV down upon 'the shook, and mean-sier holding the arm from removing .a label from the stack `until said vslfioolfz-moving means is: moving ashook to' receive the label.

j f3. Tn a'machiine of the type described, a memberff'or holding a stack of labels, a reciprocable arm -having ia label-engaging member for removing orreflaloe'l at'. a timefrom the stack, means for causing the arm to have its label-engaging member engage the uppermost label when moved in one direction and said label-engaging member to be moved clear of the stack on the return movement of the arm, said means being adjustable for adjusting the stroke during which the labelengaging member of the arm contacts with the top label, whereby labels of different sizes may be handled.

4. In a machine of the type described, a member for holding a stack of labels, a reciprocable arm for removing one label at a time from the stack, a sleeve supporting the arm, a rod rockably supporting the sleeve, means for reciprocating the rod .1n a direction at right angles to its length, a cam designed to make one complete revolution for each complete reciprocation of the rod, a cam follower acted upon by the cam and having a cam track, and a cam track follower carried by 'the sleeve and being acted upon by the cam track for rocking the sleeve to lift the arm above the stack of labels during the return movement of the arm.

5. In a machine of the type described, a member for holding a stack of labels, a reciprocable arm for removing one label at a time from the stack, a sleeve supporting the arm, a rod rockably supporting the sleeve, means for reciprocating the rod in a direction at right angles to its length, a cam designed to make one complete revolution for each complete reciprocation of the rod, a cam follower acted upon by the cam and l.

having a cam track, and a cam track follower carried by the sleeve and being acted upon by the cam track for rocking the sleeve to lift the arm above the stack of labels during the returnmovement of the arm, an abutment adjustably carried by the cam and constituting a portion of the cam periphery that acts upon the cam follower, said abutment being adjusted for altering the length of time the arm can contact the top label during the label-removing stroke of the arm, whereby the arm can remove labels of different sizes.

6. In a machine of the type described, a member for holding a stack of labels, a reciprocable arm for removing one label at a time from the stack, a tubular shaft secured to the arm, a shaft rockably supporting the tubular shaft, means for reciprocating the second shaft in a direction at right angles to the length of the shaft, a cam designed to make one complete revolution for each complete reciprocation of the rod, a cam follower acted upon by the cam and having a cam track, and a cam track follower carried by the sleeve and being acted upon by the cam track for rocking the tubular shaft to liftthe arm above the stack of labels during the return movement of the arm, means for moving a shook into a position to receive a label removed from the stack of labels, and means for holding the cam follower in a position to keep the arm spaced above the stack of labels until a shook is received by the shook-moving means, whereby a label will be removed from the stack only when a shook is ready to receive it.

'7. In a machine of the type described, label feeding means including an endless conveyor for receiving one label at a time, a label positioner and stop associated with the conveyor for holding a label in a predetermined position, means for feeding one shook at a time under the label positioner and stop and including means for moving said stop out of the way when the shook reaches a position for receiving the label, said means also including a roller for pressing the label down upon the shook as the shook is moved.

8. In a machine of the type described, label feeding means including an endless conveyor for receiving one label at a time, a label positioner and stop associated with the conveyor for holding a label in a predetermined position, means for feeding one shook at a time under the label positioner and stop and including means for moving said stop out of the Way when the shook reaches a position for receiving the label, said means also including a roller for pressing the label down upon the shook as the shook is moved and 'i a second roller for contacting the label and shook for smoothing out any wrinkles.

9. In a machine of the type described, label feeding means including an endless conveyor for receiving one label at a time, a label positie-ner and stop associated with the conveyor for holding a, label in a predetermined position, means 'for feeding one shook at a time under the label positioner and stop and including means for moving said stop out of the way when the shook reaches a position for receiving the label, said means also including a roller for pressing the label down upon the shook as the shook is moved, said label positioner and stop being adjustable to accommodate shooks of different thicknesses.

10. In a machine of the type described, means for holding a stack of labels, means for removing one label at a time from the stack, label-positioning and holding means cooperating with the label removing means for holding the label in a predetermined position, means for moving a member under the label-holding means and including means for releasing the label-holding means from the label when the member is in a position to receive the label, and means for pressing the label down upon the member for causingr it to adhere thereto.

11. In a machine of the type described, means for holding a stack of labels, means for removing one label at a time from the stack, label-positioning and holding means cooperating with the label removing means for holding the label in a predetermined position, means for moving a member under the label-holding means and including means for releasing the label-holding means from the label when the member is in a position to receive the label, means for pressing the label down upon the member for causing it to adhere thereto, and means for preventing the label-removing means from removing a label from the stack until said member-moving means moves a member to receive the label.

MELVIN W. FLYNN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PA'IENTS' Number Name Date 641,311 MacLean Jan. 16, 1900 808,067 Briggs Dec. 26, 1905 981,017 Sheldon Jan. 10, 1911 1,292,635 Parker Jan. 28, 1919 1,809,262 Aicher June 9, 1931 1,843,802 Chalmers Feb. 2, 1932

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