Патент USA US2128963код для вставки
' Sept. 6,1938. H. PAxToN Box LIDDER FEED "2,123,953 ‘ ' original Filed April '24, 1955 s Sheets-sheet 1> «_._ .Àîg O L _._= Mr_wf =ë O ML ____ _ Qa ______„__ _, _@ _:. _Z__IESEÉL Amd. . _ . _> . . .. . . , . __; _ .___ _; J ._„ ._ ___ .f . _ www ___? _w __ _. no . _à _ .O _ _ _ sept. 6, 193s.- H. vPAx'roN 2,128,963 BOX LIDDER FEED Original Filed April 24, 1955 3 Sheets-Sheet 2 Sept. 6, 1938., H. PAx'roN 2,128,963 BOX LIDDER FEED ' Original Filed April 24. 1935 P. 3 Sheets-Sheet, 5 , mm. 4mm/ff Í 2,128,963 Patented Sept. 6,- 1938 PATENT oEElcE i UNITED STATES 2,128,963 , BOX LIDDER FEED ' l Hale PaxtonfSanta Ana, Calif., assigner to -ii'ood Machinery Corporation, San Jose, Calif., a cor . » poration of Delaware ` ’original application April 24, 1935, sei-laiL No. Divided and this application February 2'1, 1938, Serial No. 191,565 7 Claiml; (Cl. 1_1@ I 17,970. ' similar to Fig. '1 and showing the box stop in This invention relates to devices for feeding boxes to and from a lidder and has particular elevate'dposition. ' utility in the operation of a lidder in lidding boxes overñlled with fresh fruits or vegetables. This case is a division carved from the joint 5 application Ser. No. 17,970, filed April 24, 1935, , by 'Chester E. O’Donnell and myself on a “Method ’ of and apparatus for packing fresh whole fruits 10 and the like". ' 'I'he present invention embraces that portion of the subject matter presented in the parent caseabove referred to which relates to the feeding of a packed box into a lidder and the coordinate ejecting of the lidded boxfrom said lidder. It is an object of my invention to provide an 15 improved mechanismv for automatically feeding vpacked boxes to a lidder and removing the lidded boxes therefrom. ï ¿ charge stop operating cam against a roller on such -‘ stop to , disengage this stop from 'the box on the pre-presser table. Fig. 10 is an enlarged fragmentary sectional » The manner of accom lishing this object> as detail View taken on line |0--||i of Fig. 6 andv showing the stop cam operating latch and lug.4 Referring specifically to the drawings the ap 4well as further objects and advantages will be made manifest in the following description taken in connection with the accompanying drawings: paratus of my invention illustrated _therein may be indicated by the numeral 2|), this apparatus in Figure 1 is a~ front elevational view ci the pre ferred embodiment of the invention. cluding a lid pressing. nailing and strapping ma 25 chine 2|, a pre-pressing machine 22, and a box Fig. 2 is a horizontalsectional view taken . on the line 2-2 of Fig. l. Fig. 3 is an enlarged fragmentary perspective view illustrating the details of the control mecha nism in the pre-presser.V 3 ~ I Fig. 4 is a fragmentary sectional view taken on „ the line 4-4 of Fig. 2. ' Fig. 4a is a fragmentary diagrammatic View taken on the direction of the arrow 4a of Fig. 3, and illustrating the overthrow mechanism -of the pre-presser in neutral position. - Fig._4b is a view similar to Fig. 4a.A and illus trates the overthrow mechanism in position for elevating the press table. . Fig. 4c is a view similar to Fig. 4b and illus 4o trates the overthrow mechanism in position vfor lowering the press table. , . Fig. l5 is a fragmentary operation view of the pre-presser and control mechanism for feeding the box into the lidder and shows the pre-presser 5 table moving downwardly with the ejector dog shifting the box against the discharge stop to position the latter over the operating cam there for. ' Fig. 6 is a fragmentary operation view illus 50 trating the situation at the _instant of completing the downward movement of the pre-presser table in progress in Fig. 5. Fig. 8 is a view similar to Fig. 5 and illustrat ing the ejection of a box from the pre-presser into the lidder with the consequent restoration of ' the discharge stop in the pre-presser to its ver tical position, and the automatic lowering of the stop operating cam into its inoperative position.> Fig. 9 is a view similar to Fig. 5 illustrating thesituation where the table of the pre-presser 10 has arrived downwardly with a loaded box during. the performance of a lidding operation in the lidder, this view showing the lidder table returning to its downwardmost position, upon arrival at which this table will shift the pre-presser dis 15 o Fig. '7 is a transverse sectional view taken on the line 1--1 of Fig. 6. 55 Fig. 7a is an enlarged transverse sectional view mechanism 23 for supplying overñlled packed boxes with the machine- 2| . conveyor and feed >and 22. The lid pressing, nailing and strapping ma chine 2| is preferably similar in structure and operation to the machine of this type disclosed in application Ser. No. 688,104, iiled September 5, 1933; by myself and joint inventors Gerald C. Paxton and Harry D. Benson, or it may be like the machine disclosed in application for U. S. Letters Patent Ser. No. 709,176, ñled January 31, 1934, by the same three applicants, said applications hav ing been co-pending with the parent case of the present divisional application, and having since 40 issued as U. S. Letters Patent No. 2,084,048 and 4 No. 2,093,733, respectively. Neither side fiushers nor a crown sheet are em ployed in the machine 2|. With this exception and the exceptions to be noted hereinafter, the' machine 2| may be identical with the machine de scribed in either of the co-pending applications. The machine 2| has a frame 32 and a nailing table 33 vertically reciprocable within the frame 32 by a power unit 34 controlled by YaY pedal 35. 60 Mounted on the upper end of the frame 32 are nailing heads 36 and a strapper head 31. The nailing table 33„ a plan view of which is shown in Fig. 2, includes end cross'bars 40 hav ing upright guide bars 4| at their opposite ends 55 . 2 aiaeßes for sliding within vertical angle iron members 43 of the frame 32. 'I'he end bars 40 are con nected by longitudinal bars 44 and 45 upon f which are mounted idle rollers 46. Pivotally mounted on the cross bars 40 and having oper ating mechanism exactly as shown in the ñrst mentioned co-pending application are side flusher shafts 48, the shaft carrying no flushers,y how ever. but instead lateral box centralizers 49 and 10 longitudinal box centrali-zers 50 which brought into operative relation with a box on the table the link 54. 'I‘his being the case, the link 54 telescopes as above described causing the com pression of the spring 54f and when the box has entirely passed over the stop 61, this spring extends the link 54 to its full length and returns 4the stop 51 to its upwardmost position as shown in Fig. 4. . 'I'he ejector and stop mechanism 62 also in cludes an ejector spring 52d, coiled about the shaft 52a and anchored at its forward end adja 33 when the table is elevated by inward swinging cent the collar 52D'. The opposite end of the of shafts 48, as fully described in the ñrst above ` spring 52d connects to a block 52e slidable on the shaft 52a and carrying an ejector dog 52j which mentioned co-pending application. ~ v 15 Mounted between the bars‘45 is a box ejector is` constantly spring pressed into its upwardmost position as shown in Fig. 1. Pivotally mounted 15 and stop mechanism 52. Themechanism 52 in on the block 58a is a chain pulley 58h over which cludes a discharge stop 51 and a. rebound box a ‘chain 58e, connected to the block 52e, extends, stop 58. Connecting the stop 51k with al down ward extending arm 53 on one of the shafts 4B ls this chain passing downwardly as shown in Fig. 20 a link 54 which swings `the stop 51 down away from in front of a box on the table 33 each time the shafts 48 are swung inwardly by the lifting of the table.` 'I'he link 54 is telescopic in con struction and includes a rod 54a which has a 25 head 54h at one end and a clevis 54e at the op posite end which pivotally connects to the arm c 53. 'I'he rod 54a is slidable in lugs 54d provided on a member 54e which is pivotally connected vto an arm 51a extending laterally from the hub of 30 the stop 51. Coiled about the rod 54a between the clevis 54c~ and the lowest of the lugs 54d is an expansive spring 541‘ which tends to main tain the link 54 in its extended condition of greatest length as shown in Fig. 4 but which 35 permits the telescoping of, this link to reduce its length. , " . j " 'I‘he stops 51 and 58 (Figs. l, 2, 9 and 10) are mounted on a shaft 52a, the opposite ends of which are supported on the table bars 4|). The 40 stop 51 is rotatable on this shaft and is yield ably urged against a. collar 52h, fixed on the shaft, by a short expansion spring 52e coiled about the shaft. When a box is delivered onto the table 33, it depresses the stop 58 which is pivotally mounted on a block 58a’flxed on the shaft 52a,Y the stop 58 (Fig. 10) being yieldably pressed upwardly into its stop position as shown in Fig. 1. When this box hits the stop 51, it compresses the spring 52e, the box at this time clearing the stop 58 and permitting the latter to be lifted by its hidden spring into its stop position as shown in Fig. 1. When the inertia of the box has been stopped by lthe compression of the spring 52e, this spring shifts the box 5 and connects to a spring means 58d mounted on the frame 32 of the lidder 2|. The` spring 20 means 58d takes up »the slack in the chain 52e when the table 33 is ln its downwardmost posi tion and as the table rises with the box dis posed between the stops 51 and 58, the chain 58e compresses the spring 58d to its limit and then pulls the block 52e with the ejector dog 52j 25 thereon in a leftward direction until this dog is free to be spring pressedA upwardly opposite the rearend of the box as shown in Fig. 9. Thus, when the box is freed from thelongitudinal cen 30 tralizers 50 and from the `stop 51 by the out ward swinging of the shafts 48, the power of the spring 52d is released against the box through the ejector dog 52j in ejecting the box from the lidder 2|, this returning the dog 52j and spring 35 52d to the condition in which these are shown in Fig. 2. Pivotally mounted on the inner face of a down ward extension from the front one of the longi tudinal bars 45 as shown in Figs. 1 and 2, is a 40 spring pressed latch 55 having a lug 56 (Fig. 10) extending inward therefrom, this latch being positioned to be engaged by a box entering the machine 2|, rocked about its axis and then dis engaged by said box before the latter comes to rest upon the table r33 in its proper position. 45 Leading from- the `discharge end of the machine 2| is a section of roller conveyor 59. The pre-presser 22 hasa frame 62, a vertically reclprocable table 63 and a table elevating power unit 64, all of which are identical with the corre 50 sponding parts oi' the lid nailing and strapping machine 2| with the exceptions to be noted here backwardly against the stop 58, there still being inafter. a gap between stop 51 and the collar 52h when this takes place. Upon the operation of the corner posts 65 of the frame 62 is a presser plate lidding machine 2|, as described in the first afore mentioned co-pending application, the inward 60 swinging of the shafts 4E by engagement of Mounted upon upper ends of four angle iron assemblyv66 including longitudinal bars 61 and 68 upon which are yieldably mounted a com~ presser plate 14, which is formed in two halves each of which is supplied with 'a soft rubber 60 pad 19. ' rolls 48a with cam tracks 4Bb shown in Fig. 4,‘ causes the stop 51 to'be rotated by the link 54 As above stated, the table 63 is supported on until the stop is disposed downwardly- from in «front ofthe box. The pressure of the spring and vertically reciprocable by the power unit 64 52o against the stop 51 immediately forces this along the shaft 52a against' the collar 52b so that the stop 51 is now disposed under the box. With the downward movement of the table 33, the shafts 48 are returned to their positions as 70 shown in Fig. 4 by springs 53a connecting the lower ends of arms 53 on the shafts 48. Nor mally the box is still disposed over the stop 51 when the table 3ft reaches its downwardmost position as shown in Fig. 4, so that the stop 75 51 cannot be returned to its upward position by in the same- manner as described in the first above mentioned co-pending application. As shown in Fig. 2, the table 63 is substantially simi lar to the table 33 of the machine 2|, and both 65 of the tables in their downwardmost positions l are on the same level. Parts of the table 63, like c`orresponding parts of the table 33, are as followsiend bars 95 having upwardly extending guide arms 96 and connected by longitudinal bars 91 and 98, between which are mounted roll~ ers 99, there being an ejector and stop assembly |00 mounted between the bars 98 which is sub . 2,128,963 Pivotaliy mounted on opposite ends lof each stantially like the- assembly 52 excepting as to the means of operating 'the discharge stop Ill. ilusher |66 is an end ñusher |66 having an oper-' ating arm |63 which is connected by a link |10 toy a. goose neck |1| formed on the upper end of The ejector and stop assembly |00 (Fig. 3) includes ‘a shaft |05 which is supported as by having its opposite ends welded upon-the end bars 95 of the table. 3' the adjacent table guide member 96. When the table 63 is elevated and the rollers |6| strike the cams |62, the shafts |60 are rotated, swinging This shaft supports a block |06 iixed thereto, said block carrying a the fiushers |66 inwardly. The goose necks |1i, chain pulley |01, underneath the bar |05, and 4ci' course, move upwardly with the table 63 and, a box rebound stop |06 pivotally.lmounted on with the inward movement of the flushers |66, said'block and yieldably spring pressed upwardly the end fiushers |68 are swung into end ñushing into the position in which it is shown in Fig. 3. positions as shown in Fig. 6 by the links |10, the end ilushers reaching these positions just as the side flushers |66 reach their full inward flushing Fixed upon the shaft |05 adjacent the` opposite endl of the table 63 is afspring anchor collar ||0 to which is anchored a heavy contractile spring 15 ||| which is coiled about the shaft |05. The opposite end of this spring is connected to a slide block | i2 on which ispivotaily mounted an positions shown in this ñgure. limit control finger |15 (Figs. 1 and 3) and a . downward limit control cam |16. Carried onvthe inner face of one of the longitudinal bars 03 of the table 63 is a low voltage box delivery control 20' switch |11 (Figs. 1 and 3) having a `switch ejector dog ||3, this being yieldably urged up wardly into the position in which it is shown in 20 Fig. 3 by a small concealed spring on said slide block. ` 15 ' y The table 63 also carries an apertured upward » finger |16. The frame 62 (Fig. 3) includes a longitudinally disposed channel ,iron member |15 ‘and a flexi ~- ' Extending forwardly from the channel frame member 115 (Fig. 3) is a frame bracket |30, and ble chain ||6 extends from the slide block ||2, a switch control shaft |3| is pivotaliy mounted` 25 over the pulley |01, and downwardly through a between this bracket and 'a member |32 of the irame 62. ‘The control arm |0| has arms |85, |86, |61, |66 and |09 provided thereon. The arm |65 is connected by a link |90 (Fig. l) to an eye suitable ’aperture in the member ||5 where ~it is yieldably held by a spring means i i1 (Fig. 1). Extending downwardly from one of the longi tudinal bars 91 as shown in Fig. 8 is a spring |0| which surrounds the stem. |02 of a switch |33 30 30 bracket finger `|24. As shown in Fig.y 3, the dis which 'controls the power elevating mechanism charge stop |0| has a hub |26 which, with a and which is constructed and operates in ex strong, stiff compression spring |21 is trapped on 64 actly the same manner as the corresponding the shaft |05 between the adjacent end bar 05 switch in the ñrst above mentioned co-pending and a stop collar |23. As shown in Fig. 7a., the hub |26 has a downwardly extending/bearing application. The stem |92 has collars |96 and |35 which are disposed above and below thev eye arm |29 which is apertured to receive va stub shaft |30 on which a cam roller |3| is rotatably lai. The arm |66 connects to the lower end of a mounted. VThe bearing arm |29 has a lateral ex» . control |96 (Fig. l.) which extends upward tension |32 which is connected by a contractile through rod the aperture in the ñnger |15 and has 40 spring |33 to the spring bracket arm |24. The its -upper extremity guided vertically by a guide spring |33 yieldably maintains the discharge stop |0| in upright position -as shown in Figs. l, 2, 3, 5, 7a, 8 andi). 4 ~ As shown in Figs. 1 and 2, the machines 2| 45 and 22 are connected by a short idle roller con veyor section |45, the opposite ends of which are secured to the frame 32 and 6‘2`of these machines respectively. Provided on the conveyor section |45 are bearing blocks |41 which carry a shaft |40 having mounted thereon a cam supporting rocker |49. The rocker |40 has arms |50 which slidably support a cam |5| as shown in Figs. l, ’ 2. 5. 6», 8 and 9. Light coil springs |52 on the arms |50 maintain the cam |51 against cap 55 screws |50a screwed into the ends of arms |50. Thev rocker |49 also has an arm |53 which ex tends upwardly within the structure of the table 33 when this is in its lowermost position and is engaged by a horizontal surface on the latch`55 60 whenever the latter moves downwardly with’ the table 33 into its iowermost position as shown in Fig. 1. Whenever the arm |53 is disengaged by the latch 55, the rocker' |59 rocks by gravity owing to the weight of cam. |5| so as to lower 65 the latter into its lowermost position in which it is shown in dotted lines in Fig. 7a. ' The table 63 has ii'usher shafts |60 which are actuated in identically the .same manner as illus trated in the first of the aforementioned co 70 pending applications, that is by rollers |6| and cam tracks |62 (see Fig. 4). These shafts have |01 provided on the overhead frame-plate 61 as shown in Fig. l. The rod |96 has an \upward -limit collar |90 provided thereon as shown -in Fig. l, the position of this collar on the rod |36 .45 being adjustable, and being adapted to be en gaged by the upward limit finger |15 on the table 63 as this table approaches its upwardmost posi- ' tion to reverse the switch |33 and the operation of the elevator mechanism 64, this causing the. 50 table to be lowered. » The arm |61 as shown in Figs. l and 3 is adapted to be engaged by the downward limit control cam |16 on rthe table 63 as the latter ap proaches its downwardmost position so as to rock .55 the shaft |8| and operate the switch |93 to halt the downward movement of the table 63. The arm |83 is connected through a link 200 with a full bell crank 20| which is in turn connected by a link 202 to a leverl 203 pivotally mounted on 60 a bracket 204 which is supported on the channel member H6. The upper end of the lever 203 has a dog 205 pivotally mounted thereon as shown in Fig. 3, this dog being yieldably held by a spring 206 in the position shown. The arm |69 has a 05 pin 2id at its lower end which is connected by a contractile spring 2li to avpin 2 i2 provided on. the bracket |60. Also provided on this bracket.. are stops 2\_|3 and 2|4. i The box conveying and feed mechanism 23 is 70 best shown in Figs. 1 and 2 and includes a hori zontal' belt conveyor system for collecting the upwardly extending arms '|63 carrying lateral packed boxes to be handled in the apparatus 20, box centralizing members |64, longitudinal box y this system being represented by the conveyor centralizing members |65 and side ilusher` 220 and being driven by a motor 22| connected to 75 75 blades |66. 4 v2,128,963 this conveyor. This motor is controlled by switches 222 and 223 having arms 224 and 225 which are positioned as shown in‘Figs. 1 and 2 _ so as'to be engagedby boxes travelling upon the conveyor 220 and upon a short section of idle conveyor 221 located between the conveyor 220 and the machine 22. The motor 22| is driven by power transmitted through switches 222 and 223 with the latter connected in parallel so that this motor runs continuously excepting when both arms 224 and 225 are engaged by boxes as afore said to deenergize the motor 22|. Mounted so as to extend slightly above the up permost surface of the idle roll conveyor section 221 just at the entrance to the machine 22 is a feed roller 230 which is power driven by a motor 23|, current being `supplied to said motor through the switch |11, the motor being deenergized when ever the arm |18 is depressed> by a box resting on the table 63. Owing tothe necessity for the table 83 to reciprocate vertically in the operation of the machine 22, switch |11 is, of course, connected to the motor 23| through a flexible cord. Operation 'I'he operation of the apparatus 20 is as fol lows. Electricity is first supplied to the various switchesfor running the motors controlled there by. Assuming the machines 2| and 22 and the 30 conveyors 220 and 221v to be empty, the `conveyor 220 is thus set in motion by the motor 22| and the feed roller 230 is rotated by its motor 23|. As boxes B travel along the conveyor 220 onto the idle roll conveyor section 221 so as to extend rest with its forward end resting on the roller 230 as box B is shown in Fig. 1. When resting in this manner, the foremost box has moved entirely off the conveyor 220 so as not to interfere with continued operation of the latter. When in this position, the foremost box engages the arm 225 and swings it so as toshut off the switch 223. If, while this box remains in this position, an other box arrives at the discharge end of the conveyor 220 so as to engage and swing the arm 10 224 and shut olf the switch 222, this deenergizes the motor 22| and -causes the conveyor system terminating with the conveyor 220 to be halted.` This halting of the conveyor 220 continues until the foremost box is subsequently delivered into 15 the machine 22, as will be described hereinafter. As the table 63 is elevated with the box' B rest ing thereupon, the fruit F which extends above the upper end of the box is brought into engage ment with the pad 90 of the pressing plate 14 20 so as to compress this fruit into the box and leave the upperi face of this fruit disposed with an arcuate contour corresponding to that of the presser plate 14. The amount of pressure thus applied is determined by the position of the col lar |98 on the control rod |96 so as to select the 25 height at which the table has been lifted before the switch |93 is reversed thus causing the ele vator mechanism 64 to cease elevating the table 63 and commence drawing the latter back down 30 wardly. . A center guard 80 disposed over a partition P of the box B comes to rest on this partition and 35 onto the feed roller 230, this feed roller picks up is lifted upwardly thereby during the elevation of' the box. _ 35 . the foremost box and delivers it at an accelerated As the table 63 rises, spring means I | 1 as shown speed onto the table 63 of the machine 22. The ' rapidity of this delivery causes the box, upon en gaging the discharge stop |0| to compress the 40 spring |21 measurably as shown in dotted lines in Fig. 9, and as the inertia of the box is over no in Fig. l is ñrst compressed and then draws down wardly on the chain ||6 to draw thel slide block ||2 leftward and stretch spring |||. This car~ ries the ejector dog || 3 to the left until it comes 40 come, the latter is repelled back against the stop up underneath the reversal stop |08 opposite the |08 which in the meantime has been lifted` by its rear end of the box B. As the elevator table spring into position at the rear of the box. With - starts downwardly, the dog || 3 is shifted by the this rearward movement, the box also engages the springs ||| against the rear end face of the box B and further contraction of the spring ||| for 45 dog 205 and shifts this rearwardly thereby rock ing the lever 203 t'o swing the lower end of this the time being is now prevented by the trapping forwardly and, through _the linkage 200, 20| and vof the box between the'centralizers |65 and the 202 and the arm |88, rocking the shaft |8| to presence of stop |0| along the path in which the swing the overthrow arm |89 from the position box mustV be ejected in feeding this into the lid der 2|. When the table 63 has moved down 50 in which it is shown in Figs. 3 and 4a to the posi tion in which the latter arm is shown in Fig. 4b. ~ wardly to the point illustrated in Fig. 5, the cen It will be noted that in this movement of the tralizers |64--|65 and ilushers |61-|68»have arm |89 the axis of spring 2|| is shifted across been withdrawn from their embrace of the box. With this release of the box B from all re the axis of the shaft |8| to bring the arm |89 straint but that of the stopv |0|, the powerful 55 against stop 2|3 so that the spring 2|| now re tains the shaft |8| in the position into which it pressure exerted against the box by the spring ||| compresses the weaker spring |21 between was just shifted. This rotation of the shaft |8| lifts upon the link |90 and the eye |9| (see Fig. 1) A the discharge stop |0| and the adjacent end bar 00 so as to lift on the collar |94 carried by the link »95 of the table 63, this movement of the box |90 thereby drawing upwardly the stem |92 of the switch |93. This actuates the switch to set in motion the elevator mechanism 64 thereby starting to move the elevator table 63 upwardly. ' Owing to the fact that the spring 2| | holds the arm |89 in the position in which it is shown in Fig. 4b this upward movement of the table 63 will now continue until some positive force has ' been applied to throw out the switch |93. taking place a short distance before the table 63 60 reaches its lowermost position. This shifting of the discharge stop |0| along the shaft |05 shifts thc roller | 3| longitudinally to position it above the cam |5| with the result that as the table 63 completes its downward movement, the roller |3| engages the cam |5| on its cam surface |5|a which rocks the discharge stop |0| about the shaft |05, this resulting in the release of the box B, as shown in Fig. 6, followed by the ejec As box B moves onto the tableÍ 63 and over the ’ tion therefrom by the ejector |00, so as to impel switch |11, it engages the switch arm |18 and> this box over the idle conveyor |45 and into the shuts off the motor 23|, thus stopping rotation of machine 2| as shown in Fig. 8. the feed roller 230. Any box delivered onto the As the box enters the machine 2|, it engages conveyor section 221 therefor while the box B is latch 55 and swings it forwardly thus shifting the 75 still resting on the table 63 will merely come to lug 56 on the latch 55 (Fig. l0) away from over 75 aisance the arm |53 ofthe cam rocker |43. This engage~ ment permits the weight of the cam |5| (Fig. 18) to rock the rocker |43 to lower the camv |5| out ofoperative relation to the roller |3| on the stop lll. However, at the very instant the stop |||| is rotated downwardly away from in front of , 5 I) resulting` from the return of the table 33 to its lowermost position will cause the cam |5| to' en gage the roller |3| and rotate the stop ||l| out from in front» 0I the box B on the table 63 in ex the box B, as shown in Fig. 6, the spring |21 expands >to push the stop |||| inwardly into con tact with the collar |23. Thus, when the box B has- passed- overthe stop Nil, the roller l3| on actly the same manner as, and with the same re- f" 5 suits as above described, wherethe cam|5| _was latched lin raised position and was then engaged by the roller |3| as the table 63 returned to its lowermost position. That is, in either case, the _/ cam |5|`rotateslthe stop ibi out from in front _of 1o ' said stop is not only rendered free from cam |5| by the lowering ofthe latter as aforesaid, but is also now out of alignment with this cam by the response above noted of the stop |0| to the spring 15 |21.y The stop illl is thus doubly free to respond to its normalizing spring |33 which returns the stop to its upright position as shown in Fig. 8. From the foregoing, it is clear that the deliv ery of a box onto the table -33 in the lidder 2| the box on the table 63 allowing the box to be . ejected by the ejector |00,_discharging the box rapidly from the machine 22 into the machine 2|. Y What I claim is: 1. In combination: a lidder including a nailing 15 table, lid pressing and nailing mechanism sus pended overhead, and an elevator for lifting said table with a packed box resting thereon into op erative relation with said mechanism to lid said box, and then lowering said table to permit the 20 20 dlsengages the latch 55 from the cam rocker arm ’ iidded box to be discharged therefrom; feeding |53 so as to permit the cam |5| 'to drop into its means for delivering a box onto said table; stop l inoperative fposition .relative to the stop lill. It , is likewise clear that the cam .|5i must be raised means for preventing a box from passing from said feeding means into said lidder; and control into operative position before- a box may again means responsive to the downward travel of said 25 be discharged from the pre-presser 22. The only , table to render said stop means inoperative' to way in which the cam |5| can be thus raised is by stop said last mentioned box from being fed into „the elevation of the tal'ile 33 of the lidding ma lidder. ~ chine 2| a sumcient distance so that on its return said 2. In combination: a lidder including a nailing downward the lug 56 on the latch 55 will engage table, lid pressing and nailing/mechanism susand rock the cam rocker |49 to lift the cam |5i. pended overhead, and an elevatorfor lifting said A reciprocation of the table 33 having this eilect table with a packed box resting thereon into op may be accomplished by manipulating the pedal ‘ erative relation with said mechanism to lid said 35, of course, without lidding a box resting on this box, and then lowering said table to permit the table. However, in the normal operation of the lidded box to be discharged therefrom; feeding apparatus'Zß, no such partial reciprocation of the table 33 would take place. Instead, each time a box is delivered to the machine 2| and is central izel longitudinally by the stops 5l and 58, the op erator, after placing a lid L in the _machine and 25 3o y 3g means for delivering a box onto said table; stop _ means for preventing a box from passing from said. feeding means into said' lidder; control means responsive to the downward travel 'of said table to render said stop means inoperative to. 40 stop said last mentioned box from being fed into said lidder;v and m aris automatically restoring inserting a strap in the strapper head 3l, steps 40 on the pedal 35 causing the elevating mechanism 3l to lift the table 33 against the nailing heads 36 said stop means to _ ox stopping condition with and the strapper head 31 so as to apply a lid to ' the passage oi a box’thereovïer. the box with the ends of the lid engaging the ends l 3. In combination: a lidder including a nailing 45 of the box, nail the lid ends to the box ends, place table, lid pressing and nailing mechanism sus the strap over the middle of the cover, and se cure the ends of the strap to the sides of the box. sa When this is accomplished, the operator releases his foot from the pedal 35 which automatically results in the reversal of the motor in the elevat ing mechanism 3l thereby withdrawing the >table 33 downward to its lowermost position as shown in Fig. 1. The stop 51 is rotated 4out of stop po sition with the downward movement of the table 33 by suitable linkage connecting this stop to the ñusher shafts 43, and the longitudinal box cen tralizers 5B are also withdrawn by therotation of such shafts to nonimpeding positions as shown in this figure, whereupon the ejector dog of the vmechanism 52 ejects the lidded and strapped box from the table 33 onto thegrav‘lty conveyor sec pended overhead, andan elevator for lifting said table with a packed box resting thereon into operative relation with said mechanism to iid said box, and then lowering said table to permit 5o the lidded box to be discharged therefrom; feed ing means for delivering a box onto said table; stop means for preventing a box from passing from said feeding means into said lidder; control means responsive to the downward travel' of said 55 table to render _said stop >means inoperative to stop said last mentioned box from being fed into said lidder; and means freeing said stop means from said control means to permit said stop means to stop another box subsequently‘arrlv- 60 ing adjacent thereto. _ v 4. In combination: a lidder including a nailing Whenever a complete reciprocation of the table table, lid pressing and nailing mechanism sus - pended overhead and _an elevator for lifting said -33 takes place in lidding a box, a return of the table with a packed box resting thereon into o5 table to its` downwardmost position vas shown in relation with said mechanism to lid Fig. 1 always results in the lug 56 on the'latch 55 - ,operative said box, and then lowering said table to permit engaging the cam rocker |49, this lifting the cam the lidde'd box to be «discharged therefrom; i'eed-7 |5| into operative position. When this occurs, oi a box onto said course, a lidded box is just being ejected from the ing means for rapidly propelling stop means for preventing a box from ’1.0 table 33, leaving the latter ready to receive table; 719 another box to be lidded. _ It, when the table 33 passing from said feeding means into said lidder; and control means responsive to the downward thus moves downwardly, the table 63 of the, pre travel of said table to render said stop means presser 22 is in its downwardmost position with inoperative to stop said last mentioned box from a box resting thereon andwaiting to be ejected tion 59. v ' ' ' ' 75 therefrom, the upward movement of the cam. lil being :ted into said lidder. l, ' » 6 ’ , 2,128,963 5. In combination: a lidder including a nail ing table, lid pressing and nailing mechanism suspended overhead and an elevator for lifting said table with a"` packed box resting thereon into operative relation with said mechanism to lid said box, and then lowering said table to permit the lidded box to be discharged therefrom; feed ing means for rapidly propelling a box onto said table; stop means for preventing a box from passing from said feeding means into said lidder; control means responsive yto the downward travel of said tableeto render -said stop means inopera tive to stop said 'last mentioned box from being fed linto said lidder; and means automatically restoring said stop means Vto box stopping con dition with the passage of a box thereover. 6. In combination: a lidder including a nailing table, lid pressing and nailing mechanism sus pended overhead, and an elevator for lifting said 20 table with a packed box resting thereon into operative relation with said mechanism to lid said box, and then lowering said table to permit the lidded box to b'e dischargedtherefrom; feed ing means for delivering a box onto said table; 26 stop means for preventing a box from passing from said feeding means into said lidder; con-- , trol means responsive to the downward travel of said table to render said stop 'means inopera tive to stop said last mentioned box from being fed into said lidder; Vand means independent of the`box entering said lidder to be lidded, for automatically removing the previously lidded box from said lidder. 7. In combination: a lidder including a nailing table, lid pressing and nailing mechanism sus . pended overhead, and an elevator for lifting saidV 10 table with a packed box resting thereon into operative relation with said mechanism to lid said box, and then lowering said table to permit the lidded box to be discharged therefrom; feeding means for delivering a box onto said table; stop means for preventing a box from passing from said feeding means into said lidder; control means responsive .to the downward travel of said table to render said stop means inoperative to stop said last mentioned box from being fed into 20 said lidder; and means independent of the box entering said lidder to be lidded, for automati cally and rapidly ejecting the previously lidded box from said lidder. ’ ' ' HALE PAXTON.