US2521577A - Sliced bacon folding and wrapping machine - Google Patents

Description

Sept. 5, 1950 A. c. GANNON SLICED BACON FOLDING AND WRAPPING MACHINE 6 Sheets-Sheet 1 Filed July 2, 1947 INVEN TOR. ALF'EEYJ 6. 621mm,

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SLICED BACON FOLDING AND WRAPPING MACHINE Filed July 2, 1947 6 Sheets-Sheet 6 IN VEN TOR. 12cm? 6. @QMYQN,

HWY'QE/KEY Patented Sept. 5, 1950 SLIOED BACON FOLDING AND WRAPPING MACHINE Alfred C. Gannon, Indianapolis, Ind, assignor to Kingan & Co. Incorporated, Indianapolis, Ind., a corporation of New Jersey Application July 2, 1947, Serial No. 758,567

10 Claims.

The present invention relates to a machine for folding and wrapping sliced bacon, and the primary objects of the invention is to provide mechanism which will automatically continuously receive, from a slicing station, weighed quantities of sliced bacon, each batch of slices being arranged in the familiar overlapping series upon a sheet of suitable wrapping paper or the like, and then proceed, without attention to fold the projecting lateral edge portions of the sheet over the ends of the bacon slices, then fold a projecting end portion of the sheet over the uppermost few bacon slices of the series, then fold that section of the batch remote from the last-mentioned portion of the paper into overlapping relation with the central section of the batch, then fold the remaining section of the batch into overlapping relation with the first-folded section, and then discharge the completed package. Numerous ancillary objectives will appear as the description proceeds.

To the accomplishment of the above and related objects, my invention may be embodied in the form illustrated in the accompanying drawings, attention being called to the fact, however, that the drawings are illustrative only, and that change may be made in the specific construction illustrated and described, so long as the scope of the appended claims is not violated.

Fig. l is a side elevation of the feed end of a machine, constructed in accordance with my invention;

Fig. 2 is a similar elevation of the central portion of the machine;

Fig. 3 is a similar end of the machine;

Fig. 4 is a plan view of substantially that section of the machine illustrated in Fig. 2;

Fig. 5 is a plan view of substantially that portion of the machine illustrated in Fig. 3;

Fig. 6 is a transverse section taken substantially on the line 6-5 of Fig. 4. and looking in the direction of the arrows;

Fig. '7 is a transverse section taken substantially on the line 'll of Fig. 4 and looking in the direction of the arrows;

Fig. 8 is a transverse section taken substantially on the line 8-8 of Fig. 4 and looking in the direction of the arrows;

Fig. 9 is a transverse sectional view taken substantially on the line 9-9 of Fig. 3 and looking in the direction of the arrows;

Fi 10 is a perspective view, upon an enlarged elevation of the discharge scale, of one of the carriages incorporat d 6 r machine, parts being broken away for clarity of illustration;

Fig. 11 is a side elevation of such a carriage, bearing a batch of bacon slices associated with a wrapper sheet;

Fig. I2 is a more or less diagrammatic sectional view showing the action of the sheet-edge turning device;

Fig. 13 is a similar View, showing the sheet edge folder elements as they begin to operate;

Fig. 14 is a similar view showing the sheet edge folder elements in final position;

Fig. '15 is a diagrammatic side elevation indicating the'action of the sheet end folding mechanism'; and

Figs. 16 to 20 illustrate successive steps in the final folding of the bacon package.

Referring more particularly to the drawings, it will be seen that Figs, 1, 2 and 3 may be matched, end to' end, to constitute a complete side elevation of the machine. Said machine comprises 'a frame upon which are supported upper and lower pairs of trackways 3! and 32. Adjacent the feed end of the machine, a pair of sprockets 33 is supported upon a shaft 33' suitably carried for rotation upon a transverse axis, and at the discharge end of the machine, a corresponding pair of sprockets 3a is mounted upon a similar shaft 34. Near the sprockets 34, a platform 35 is mounted upon the trackways 32 to support an electric motor 35 connected, through a suitable flexible coupling .il, to the input shaft of a gear reduction unit 38 whose output spindle drives, through a chain 39, is sprocket 39' fixed to the shaft 34'.

Likewise fixed to said shaft is a beveled gear 40 meshing with a beveled gear '4! carried at one end of a shaft A2 mounted in suitable bearings 43 and A l in the machine frame. At its opposite end, the shaft 44' carries the input elements d5 of a toggle joint, indicated generally by the reference numeral 56. The output elements 41 of said joint are supported upon a shaft 48 mounted, for rotation and reciprocation, in suitable bearings t9 and 59 provided in the machine frame. Intermediate its ends, the shaft 48 carries a cylindrical reciprocating cam block 5| peripherally formed with a serpentine cam groove 52 in which engages a roller 53 mounted upon a stationary pillow block 54 suitably supported upon the trackways 32. If desired, the pillow block may be adjustably mounted upon said trackways in order to vary the position of the block '5l.

A chain conveyor, indicated by the reference numeral 55, paSsesabout the sprockets 33 and 34 and is thereby led past the trackways 3i and 32. Mounted to travel with the conveyor is a series of carriages, indicated generally by the reference numeral 56, each carriage being provided, at its opposite sides, with ears 5? formed with guide slots 58 (see Fig. adapted to engage the trackways 3| and 32 to guide the movement of said carriages 56.

As is most clearly illustrated in Fig. 10, each carriage 56 comprises a central table 59 to the rearward or trailing edge of which is hinged, at 61, a rear leaf 5%. The leaf as is formed to provide a proximal Section which is normally inclined downwardly and rearwardly from the surface of the table 59, and a distal section which is normally inclined upwardly and rearwardly. A tray 92 is hinged, at B3, to the distal edge of the leaf to, and projects toward the table 59, being normally held in its illustrated position by a pin 64 slidably extending through the leaf 60, and urged upwardly by a spring 65, one end of which is anchored to the lower end of the pin 64, and the other end of which is anchored to an abutment 68 on the leaf 69. A stop collar 64 on pin 64 limits movement thereof under the influence of Spring 85. Likewise hinged at B3 is a flap 61 which is normally inclined upwardly and rearwardly from the distal edge of the leaf Bil. One or more springs 53 normally hold the flap 6'! in its illustrated position, being anchored between a pin 69 on the flap and a pin 19 on the leaf 60.

Fixed to the lower surface of the flap 6'! is an arm l'l projecting downwardly and forwardly from said flap, in the manner illustrated particularly in Figs. 10 and 11, and carrying at its lower end a roller 72. A second arm 13 is fixed to said flap and projects forwardly therefrom at a more acute angle, the arm 13 being considerably longer than the arm !2 and carrying, at its remote end, a roller '54.

An arm 15 projects substantially vertically downwardly, being anchored to the leaf 60, and carries at its lower end a roller 16. A second arm and that, when the tray 85 is unloaded, its edge adjacent said table is held above the surface of said table by a plunger 95 guided in the leaf 83 and urged upwardly by a spring 9'! anchored to the lower end of said pin and to a fixed abutment on the leaf 83. A stop collar 96' on plunger 96 limits movement thereof under the influence of spring 91. When the edge of said tray is thus held in its elevated position, the fingers 81 act as an abutment adjacent the forward edge of the table 59.

As is clearly shown in Figs. 10 and 11, an arm 89 attached to the distal portion of the leaf 83 projects downwardly and forwardly therefrom and carries at its remote end a roller 98. A second arm 9|, fixed to the proximal section of said leaf, and somewhat longer than the arm 89, projects downwardly and forwardly at a less acute angle, and carries at its lower end a roller 92. A third arm 93, fixed to the distal portion of the leaf 83, projects forwardly and upwardly therefrom, and carries at its remote end a roller 94. The functions and manner of operation of these arms and rollers will appear as the description proceeds. A spring 95 is anchored to the leaf 83 and to the pin 82 to hold the leaf 83 normally in the position illustrated in Figs. 10 and 11.

Adjacent the opposite sides of the trackways 3! I provide curved flanges 98 and 99 (see Figs. 2, 4, '7 and 12). A bacon batch, indicated generally by the reference numeral Hill in Fig. 11, comprises a sheet l9l of paper, glassine, cellophane, or other suitable wrapping material, upon which have been deposited in the overlapping series arrangement, a plurality of bacon strips indicated by the reference numeral I02. The lowermost bacon strip is customarily placed closely adjacent the leading edge of the wrapper sheet, with its ends substantially equally spaced from the transverse edges of 11 fixed to the leaf 59 is longer than the arm 15, 1

and projects more acutely forwardly therefrom, carrying at its remote end a roller 18. A third arm 79, much longer than the arm 11 and, in the positions of the parts illustrated in Fig. 11, projecting forwardly and slightly upwardly from its anchorage upon the leaf 65, carries at its remote end a roller 36. A spring 8 l, anchored at one end to the leaf 5E) and at its opposite end to a pin 82, normally holds the leaf 69 in its position shown in Fig. 11.

The functions of the various arms and rollers just described, and their manner of operation, will be made clear as the description proceeds.

A forward or leading leaf 83 is hinged at 84 to the leading edge of the table 59; and the leaf 83 likewise comprises a proximal section which is normally inclined downwardly and forwardly from the table, and a distal section which is normally inclined upwardly and forwardly from the table. A tray 85 is hinged at 86 to the distal edge of the leaf 83, and projects therefrom generally toward the table 59. Depending from the rearward edge of the tray 85, and transversely spaced along said edge, is a series of fingers 81, preferably curved upon a common are concentric with the axis of the hinge E6, the lower ends of said fingers being adapted to extend through and be guided in, transverse slots 83 (see Fig. 10) formed in the leaf 33. It will be clear from an inspection of Figs. 11 and 20 that the fingers '87 are disposed closely adjacent the forward edge of the table 59 upon the rods H0 and movement in the line of travel of the conveyor such sheet which project beyond the strip, and successive strips of bacon are similarly arranged. The trailing edge portion IE4 of the sheet projects a substantial distance beyond the uppermost bacon strip. Such a batch 402 will be placed upon each carriage 55 in the region illustrated in Fig. 1; and the spring 9'! is of such strength that the weight of that portion of the batch which is thrown upon the tray will depress said tray substantially into the plane of the table 59, the leading edge I93 of the batch being substantially coincident with the distal edge of the leaf 83. As the carriage bearing such a batch passes the station at which are positioned the flanges 88 and 99, the projecting edges I05 and I05 of the sheet 10! are elevated by engagement with said flanges, substantially into the relation illustrated in Fig. 12.

Immediately adjacent and beyond the flanges 9B and 99, I provide a flying folding mechanism, indicated generally by the reference numeral I01, and best illustrated in Figs. 2, and 6.

A web comprising integral right-and-lefthand supporting elements H38 and M39 is supported, l l l for reciprocatory 55. The element 198 has an arm H2, and the element I09 has an arm H3 integrally joined therewith, said arms extending into cooperative engagement with the shaft 48, and being fixed to move axially therewith through the medium of a bearing structure indicated by the reference numeral H4 in Figs. 2 and 6 and common to said arms.

A lever H5 is pivotally mounted at MS upon the supporting element I08 and carries, intermediate its ends, aroller II'I positioned for cooperative engagement with the perimetral surface of an ovoid cam H8 fixed to the shaft E8. A similar lever H9 is pivotally mounted at I2?!- upon the supporting element I 8'9 and carries a roller l2"! positioned for cooperative engagement with the perimetral surface'of a similar, but up positely arranged, cam I22, likewise fixed to the shaft 48. A spring I23 extends between the levers H5 and H9, urging the lower ends thereoftoward each other, and thereby holding the rollers I I! and I2! resiliently in engagement with their respective cams H8 and I22.

A link I 2 is pivetally connected with the lower end of the lever H5 and the lower end of. a lever I25 pivotally mounted intermediate its ends at I26 upon the supporting element H33. At its opposite end, the lever I25 is provided with a lost motion slot I2? in which engages one end I28 of a pusher rod I29 mounted for reciprocation in suitable guide means carried by the supporting element 25%. Beyond the guide means, there is hingedly connected at Mil tothe end of the rod I29 a presser element Iii! whose distal edge is rolled upwardly and re'arwa'rdly, as at Iii-I, to provide a smooth and substantially frictionless pusher nose.

Similarly, a link I 32 is pivotally connected to the lower end of the lever H9 and to the lower end of a lever I33 pivotally mounted, intermediate its ends, at ltd, upon the supporting element I09. The upper end of the lever I33 is provided with a lost motion slot I35 in which engages one end I-Zfi of a pusher rod I33 mounted for" axial reciprocation in suitable guide means carried by the supporting element I99. A presser clement I33 is hingedly connected at It! with the oppositeend of the rod I31, and the remote edge of said element I36 is rolled upwardly and rearwardly as at 639' to provide a pusher nose similar to the nose IZSi. Springs M2 and M3 resiliently hold the presser elements I32 and I33 normally in their positions illustrated in Fig. 6;

A lever 54% is pivotally mounted intermediate its ends, at I :5, upon the supporting element I539. At one end, said lever carries a roller I 16 in cooperative engagement with the perimetral surface of a cam It? fixed to the shaft 58, said cam being provided with a single projecting pip I48.

It will be noted that the apex of the pip M8 is peripherally spaced from the high point of cam 553 alittle less than in a clockwise direction and from the high point of cam I22 a little more than 90 in a counter-clockwise direction, and that the roller I 415 is substantially midway between the rollers II? and IZI which are substan tially diametrically opposed, relative to the shaft 43.

A link it! connects the opposite end of the lever I 34 with one end of a lever I58, pivotally mounted intermediate its ends, at IEI, upon the supporting member 5539. A block N52 is pivotally supported, at I 53, upon the other end of the lever Its, the connection between said block and said lever being such as to permit some movement of said block toward lever end, and a spring I54 being provided to oppose such movement. A spring I55, extending between the lever I44 and an anchorage on the supporting element H39, normally holds lever Hill and block I52 in the positions illustrated in Fig. 6.

The relationship between the parts illustrated in Fig. 5' and the cam block 5! is such that, as a carriage comes into registry with the folding mechanism Iiii, the lateral edges of its supported sheet- Illl being-- held in the elevated positions illustrated in Fig. I2; by the" flanges-.98 and. the shaft 48 begins to. move, in. the direction: and' at the velocity of movement of the carriage; and the cams IN and I22 engage the. rollers I11 and I21 to swing the levers H5 and" H9 outwardly about their pivotal axesv lit. and I210.

Thus, the upperfends'of the levers I25 and I 33 are swung inwardly to project the rods I29: and I3? similarly inwardly. The noses I3 1. and I39 of the presser members I36: and I387 are thus caused toswing the sheet portions I85" and I06 inwardly. As the cams turn. in a counter-clockwise direction from the positions illustrated in Fig. 6, the pip 'I lfi engagesthe roller M5 to press the block I52 into engagement with the press'er element noses"I31Iand l'filfbefore the high points of the cams I I8 and i122 reach cooperative engagement with the rollers I11" and- I2I. Thus; the presser' elementinoses hold the wrapper edges I85 and Veilin engagement with the bacon slices I iifiduri'ng the latter portion of the inward-movementof'sai'el prcsserele'ments to exert a smoothing-and stretching effect upon said-wrapper edges, thus ensuring a relatively tight-fold at each'edge of'th'e package, and a' smooth engagement of the i'nturned wrapper edges with the bacon. The apex of'the pip i iliileaves the roller Mt to release the block I52 just before the presser elements reach their innermost posit-ions, whereupon the springs M2 and M3 li f-t thepresser elements out ofcontact with. the wrapper edges. Thus, throughout engagement of the presser' elements with the wrapper edges, said presscrelements are moving-inwardly, and said presser elements leave the wrapper edges before their inward movement is arrested. The'wrapp'er edges, of course, adhere to the greasy bacon.

As will be clear from an inspection ot Fig; 6, the folding operation is completed and the block 'iiil isl-ifted within the first. quarter-revolution of the shaft 48. Reference to Fig. 2'will show that during that quarter-revolution, the shaft 48 and its associated parts will be travelling toward the left; and the parts are so proportioned and 'designed that the velocity of the folder IIIT will be identical with that of the carriage 5'6 with which it" currently registers.

During the succeeding quarter-revolution of shaft til, the high points of cams I I8 and I22 will retreat from the rollers I IIand' IZ'I to permit the spring I 23 to return the levers Hi5 and IIS, and so the rods I29 and IS'I, to their starting positions illustrated in Fig. 6. The cam groove 52 is so designed as to eiTect continued travel of the.

folder It! in synchronism with such carriage. substantially throughout this period of withdrawal of the rods I28 and I3! in order to guard against any possibility of interference between th'e presser members and parts of any carriages. But during the third and fourth quarters of the shaft revolution, while the rollers II T, 52!, and M5 engage low concentric regions of their associated cams, that portion of the cam groove 52' not shown in Fig. 2, cooperates with the fixedposition roller 53 to reverse the direction ofmovement of the shaft 33 and its associated parts, and to return the parts to the starting positions shown in Fig. 2-.

As the carriage leaves the folding station, the roller "#2" on the arm II encounters a stationary cam I555 (see Figs. 2 and 4) suitably supported between the trackways 3i and the rising surface of said cam, which is followed by the roller I2, causes the flap '5? to be swung, in a counterclockwise direction, suiiiciently to move the roller I4 into position for cooperation with a second stationary cam I51. As the roller I4 follows the rising surface of the cam I51, th counter-clockwise swing of the flap 6'! is completed, to bring the parts into the position illustrated in Fig. 15, whereby the projecting trailing rear end portion I04 of the sheet is folded forwardly over the rearmost slices of bacon, where said portion will adhere in the manner above-described. At about the moment when the roller I4 reaches the peak of the cam I51, the roller 16 encounters a stationary cam 58; and as said roller follows the rising surface of the cam I58 the leaf B8 is swung in a counter-clockwise direction about its hinge axis BI. The cam I58 is capable of moving the leaf 68 only to the position illustrated in Fig. 16. Of course, the roller 14 is lifted off its cam I51 by this action of the leaf 60.

As will be apparent from an inspection of Figs. 2 and 3, the roller 98, carried by the arm 89, encounters a stationary cam I59 substantially at the moment when the roller 16 encounter the cam I58. Since the arm 88 is forwardly and downwardly inclined, travel of the roller 98 up the inclined surface of the cam I59 will swing the leaf 83 in a clockwise direction about its hinge axis 84. Coaction between the roller 98 and the cam I59 swings the leaf 83 far enough to bring the roller 92, on the arm 9I, into position I to encounter, cooperatively, a stationary cam I88; and as the roller 92 rides up the cam surface I60, the leaf 83 is swung in a clockwise direction as illustrated at the righthand end of Fig. 3. Now, the parts occupy substantially the positions illustrated in Fig. 16. It is to be noted that the two leaves 60 and 83 move substantially simultaneously from the positions of Fig. to the positions of Fig. 16, so that each leaf acts as an abutment preventing bodily shifting of the bacon batch I89 under the influence of the folding action of the companion leaf.

Now, while the uppermost plateau of the cam I58 coacts with the roller I6 to hold the leaf 60 in the position illustrated in Fig. 16, the roller 94 on the arm 93 encounters a stationary cam I5!, and as said roller follows said cam, the folding action of the leaf 83 is completed, the parts being brought into the positions illustrated in Fig. 17, whereby substantially the leading onethird of the bacon package is folded over into superposition upon the middle one-third of the batch.

Now, as the carriage continues to travel, the roller 94 leaves the cam NH, and the spring 95 returns the leaf 83 toward its starting position, until the roller 92 encounters the descending cam section I64. Substantially simultaneously, the roller '18, on the arm I1, encounters an ascending cam surface I33 so that, as the leaf 83 moves in a counter-clockwise direction, the leaf 68 also moves in a counter-clockwise direction, tending to fold the trailing one-third of the bacon package into superposed relation to the folded, leading one-third. It is to be noted that, as this folding action begins, the leaf 83 and tray 85 act as an abutment to prevent bodily shifting of the package under the influence of such movement of the leaf 69; and, as the tray 85 leaves contact with the package, the fingers 81 continue to act as an abutment. As the roller I8 rides the surface I63, the roller 88 is brought into position to encounter, cooperatively, a risin stationary cam I 65; and the coaction between said roller 88 and cam I65 completes the folding of the trailing portion of the package, bringing the parts into the positions illustrated in Fig. 19. The roller then descends the cam surface I65 to bring the roller I8 into cooperative relation with the descending cam I61, while the roller 92 descends the cam I88, whereby the parts are returned to starting relation at the discharge end of the machine. The fingers 87 still abut the package I89, in the manner illustrated in Fig. 20, and the package may be removed from the machine in any desired way, or may be permitted to drop from the carriage as the arriage passes around the sprocket 34.

The provision of the trays 62 and 85, together with resilient means tending to hold them spaced from the adjacent sections of leaves 69 and 83, is quite important aside from the fact that they establish abutments holding the bacon batch against undesired movement during the batchfolding operations. Bacon batches of the type here under consideration will vary somewhat in thickness in a direction normal t the wrapper #85. While that variation is not numerically large, it will be seen that, at the station illustrated in Fig. 17, the effect of the variation will be doubled, while at the station illustrated in Fig. 19, that effect will be tripled. The spring-pressed trays. provide for the exertion of a standard degree of pressure upon the folded batch, whether or not the urrent batch is of the maximum thickness which the machine is capable of handling, as illustrated in the drawings.

Preferably, relatively heavy frame plates I69 and I10 will be provided for supporting the folding mechanism Iill, its shaft 48, and its rods III] and III.

I claim as my invention:

1. A package folding machine comprising a guided conveyor, a plurality of carriages serially associated with said conveyor to move therewith, each of said carriages comprising a table, a leaf hingedly associated with the leading edge of said table, a second leaf hingedly associated with the trailing edge of said table, a flap hingedly associated with the trailing edge of said second leaf, follower means associated with said flap; a first cam means associated in the path of said follower means and operable, when engaged by said follower means, to swing said flap upwardly and forwardly into substantial engagement with said second leaf, a second follower means associated with said second leaf, a second cam means disposed in the path of said second follower means and operable, when engaged by said second follower means, to swing said second leaf upwardly relative to said table, a third follower means associated with said first leaf, a third cam means disposed in the path of said third follower means and cngageable thereby substantially concurrently with engagement of said second follower means with said second cam means, said third cam means coasting with said third follower means to swing said first leaf upwardly relative to said table, a fourth follower means associated with said first leaf, a fourth cam means disposed in the path occupied by said fourth follower means after such swinging movement of said first leaf, said fourth cam means coacting with said fourth follower means to swing said first leaf rearwardly and downwardly into overlapping substantially parallel relation with said table, and then to release said follower means, a fifth follower means associated with said second leaf, a fifth cam means disposed in the path of said fifth follower means and coactive therewith, after relea e 0! said fourth follower means, to swing said second leaf forwardly and downwardly into overlapping substantially parallel relation with said table, and means active thereafter to return said leaves to positions located, respectively, wholly in advance of and behind said table.

2. For use in a wrapping and folding machine, a carriage comprising a table, a front leaf hinged to the front edge of said table, a rear leaf hinged to the rear edge of said table, a flap hinged to the rear edge of said rear leaf, and a plurality of cam-followers projecting from each of said hinged elements at various angles.

3. The carriage of claim 2 including spring means for each of said hinged elements resiliently tending to hold each element in a predetermined relation to the element from which it is supported.

4. The carriage of claim 2 in which each leaf is substantially L-shaped in section transverse to its hinge axis.

5. For use in a wrapping and folding machine, a carriage comprising a table providing a substantially horizontal, upwardly-presented surface, a front leaf hinged to said table at the front edge of said surface, a rear leaf hinged to said table at the rear edge of said surface, each of said leaves including a portion adjacent said surface normally inclined downwardly and away from said surface and a distal surface inclined up- 3() wardly and away from said surface, a tray for each of said leaves hinged to the distal edge of its leaf and projecting toward said table, and

resilient means supporting the free edge of each of said trays.

6. The carriage of claim 5 in which the free edge of the tray associated with said front leaf is provided with abutment means disposed closely adjacent the front edge of said table, and in which the resilient means for said tray normally supports said tray edge at an elevation above said surface.

7. The carriage of claim 6 in which said abutment means comprises a plurality of transverselyspaced straps depending from said tray edge.

8. Th carriage of claim 7 in which said straps are rigid and in which each strap passes through a slot in said front leaf.

9. The carriage of claim 8 in which each strap is curved upon an arc concentric with the hinge axis of said tray.

10. The carriage of claim 5 including a flap hinged to the distal edge of said rear leaf and normally inclined upwardly and away from said surface.

ALFRED C. GANNON.

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

UNITED STATES PATENTS Certificate of Correction Patent No. 2,521,577 September 5, 1950 ALFRED C. GANNON It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows:

Column 8, line 47, for the Word associated read disposed;

and that the said Letters Patent should be read as corrected above, so that the same may conform to the record of the case in the Patent Office. 1

Signed and sealed this 14th day of November, D. 1950.

THOMAS F. MURPHY,

Assistant Gammz'ssz'omr of Patents.

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