referring to fig1 the present invention is shown which comprises an automatic poultry breast processing machine 10 having a longitudinally extending rigid supporting frame structure 12 comprised of horizontally and vertically disposed structural members respectively 14 and 16 interconnectedly disposed to provide an infeed end 18 and a delivery end 20 therebetween which is assembled a downwardly disposed longitudinally extending infeed and transport conveyor 22 rotatably intercommunicating within said supporting frame structure 12 intermediate a plurality of vertically disposed longitudinally arrayed optionally selective automated severing blade assembly stations being first an upwardly disposed angularly downward acting spaced set of bilateral wing severing blade operational assemblies 24 followed by a downwardly disposed centrally intermediate upward acting breast severing blade operational assembly 26 and thereafter by an upwardly disposed angularly downwardly acting spaced set of backbone removal severing blade operational assemblies 28 and then an optionally alternate upwardly disposed centrally intermediate downward acting backbone severing blade operational assembly 30 all employable individually or in various optionally selective or alternate combinations as a machine 10 means for accomplishing severable reduction of sequentially fed bilateral poultry carcass sections selectively into various pieces by the methods hereof as hereinafter more fully described . referring again to fig1 to describe in greater detail the component parts of this invention as well as explain the general operation thereof , wherein is also shown the infeed staging tray 32 adapted to receive and thereafter hold for manual placement feeding therefrom successively through a minimum distance feed path forward bilateral poultry carcass sections , not seen in fig1 but illustrated in fig2 and certain subsequent figures hereinafter discussed being respectively therein designated by the numeral 34 , into supportable impaled engagement upon an infeed conveyor transport spike 36 adjustably assembled to the infeed and transport conveyor 22 by transport spike bracket assembly 38 for incremental processing movement thereby of carcass sections selectively and / or alternately into and through one or more of said severing blade operational assemblies 24 , 26 , 28 , or 30 as aforementioned and hereinafter more fully described . initiation of the carcass section infeed processing operation is upon activation of the infeed and transport conveyor start switch 40 by operator torso engagement and arcuate deflection of the switch lever 42 thereof thereby energizing the infeed and transport conveyor hydraulic drive motor 44 to transmit infeed drive motion through conveyor drive shaft 46 connectably operable to power conveyor dual drive sprocket 48 in imparting rotary motion to said conveyor 22 in cleated engagement therewith in tensionably adjustable drive about longitudinally displaceable infeed and transport conveyor dual idler sprocket 50 adjustably moveable in either extension or retraction longitudinally by means of idler sprocket adjustment bolt 52 threadably operable through adjustment bolt bracket 54 in compressive engagement and movement of idler sprocket shaft bearing 56 within which the idler sprocket shaft 58 of said dual idler sprocket 50 rotates , whereupon said infeed conveyor transport spikes 36 assembled to said conveyor 22 by means of said transport spike bracket assemblies 38 are caused to move forward with processing machine infeed and transport conveyor 22 displacement motion and thereby supportably pass in registered movement into and through said machine 10 carcass sections 34 for selective accomplishment of processing operations thereon by said severing blade operational assemblies 24 , 26 , 28 or 30 . operational safety features of said machine 10 shown in fig1 include the generally u - shaped safety bumper 60 which provides an operator guard about the machine 10 infeed and conveyor mechanisms and also serves as an affixment support means for said infeed and transport conveyor start switch 40 as shown , and thereabove within reach of a typical operator when postured in a torso - contact position of proximity restraint against the switch lever 42 side of said safety bumper 60 is the generally u - shaped machine 10 emergency shut - off switch level bar 62 operable upon pivotal downward hand activated displacement about lever bar pins 64 to arcuately move bar lug 66 against shut - off switch level 68 thereby deflecting the latter and opening the normally closed emergency shut - off switch 70 thus immediately and automatically stopping all of the machine 10 conveying and processing operational functions in the event of either a carcass section processing jam or operating personnel hazard condition . considering fig1 now in terms of the carcass section support , guidance and control means and generally the various optionally selective and / or alternate processing operation capability functions provided and accomplished by said machine 10 . infeed of the carcass section members , not illustrated in fig1 but shown in fig3 and 4 to be hereinafter more fully detailed but briefly described now for purposes of providing a basis in further immediate explanation , is by sequential manual removal of individual carcass section members 34 from the infeed staging tray 32 and impaledly disposing them upon the infeed load position 72 infeed conveyor transport spike 36 for inward transport feed of said carcass sections 34 with the rearward ends forward leading and the respective whole wing members thereof outwardly distended from the shoulder joint point of attachment to be supportably engaged by infeed wing support guide rods 74 . after each carcass section is manually positioned upon that infeed conveyor transport spike 36 located at the infeed load position 72 generally as above described , the operator then makes forward torso contact with the switch lever 42 as he simultaneously reaches outward and up and forward with a butterfly arm motion to manually obtain another carcass section from the infeed staging tray 32 while at the same time the infeed and transport conveyor start switch 40 being activated by said switch lever 42 deflection is made whereupon the transport conveyor hydraulic drive motor 44 is energized and the infeed and transport conveyor 22 by rotary drive transmission thereto through conveyor dual drive sprockets 48 is caused to advance in the machine 10 infeed direction while supporting upon the infeed conveyor transport spike 36 a carcass section in the wing outward disposed configuration supportably maintained by the infeed wing support guide rods for processing , while advancing from the infeed staging position 76 , to the infeed load position 72 , the next successive infeed conveyor transport spike 36 for continued successive manual placement impaled positioning of a carcass section 34 thereupon . the infeed load position 72 as above described is also shown in a simplified top plan view thereof as illustrated in fig1 a to be hereinafter more fully described . as the carcass section is conveyably transported forward disposed in the internally impaled wing distended support configuration above described the wings are slidably engaged compressively from above laterally between the shoulder and wing tip joints thereof by the spring biased geometrically configured outward wing distension and shoulder joint dislocation guide rods 78 , which serve to progressively distend during forward transport movement by said conveyor 22 of a carcass section the respective wing members thereof outward from the carcass section torso to a shoulder joint dislocated disposition whereby button cut removal of the whole wing members by means of the bilateral wing severing blade operational assemblies 24 , when optionally set to operate are accomplished . it will be noted that the outward wing distension and shoulder joint guide rods 78 are mounted in machine 10 support structure by means of support rods 80 which have affixed at the lower ends thereof pintle bearings 82 adapted to pivotally receive and supportably maintain guide rod pivot pintles 84 with the rotational moment of said rods 78 being adjustably operable against bias springs 86 respectively connectably interposed between frame connector 88 and rod connector 90 . detailed consideration and description of the operation of bilateral wing severing blade operational assemblies 24 will be set forth hereinafter in specific reference to fig5 through 7 and the fig1 series , however , during the indexing transport of a carcass section therethrough control is accomplished by means of conveyor slow down switch 92 and conveyor stop switch 94 sequentially activated by the transport spike bracket assembly switch trip 96 by trippable engagement thereof respectively with the conveyor slow down switch lever 98 and the conveyor stop switch lever 100 , whereby the carcass section conveyable transport speed by conveyor 22 is slowed from the set run speed to a reduced speed to enable more precise positioning control over a carcass section 34 immediately prior to and during button cut removal of the whole wing sections , and stopped immediately thereafter , automatically , to facilitate proper registration in manual impalement placing of the next successive carcass section upon an infeed conveyor transport spike 36 at the infeed load position 72 having been advanced thereto from the infeed staging position 76 upon previous tripping of switch lever 42 and activation of infeed and transport conveyor start switch 40 , and upon subsequent successive activation thereof by operator torso deflective contact therewith initiate continued indexed conveyance into and through the bilateral wing severing blade operational assemblies 24 of loaded carcass sections 34 in accomplishing button cut whole wing processing removal therefrom by the mechanism of machine 10 and the methods thereof . as shown in fig1 the bilateral wing severing blade operational assembly 24 is comprised of a wing severing blade hydraulic drive motor 102 which provides rotary motion to the wing severing blade 104 variably through transmission 106 to the drive shaft 108 in turn to which said blade 104 is interchangeably assembled by bolt 110 . also assembled adjustably to the transmission 106 housing is the wing severing blade pivotal shield 112 by means of shield mounting and support bracket sub - assembly 114 . the immediate foregoing contemplates that wing severing blades 104 are assembled to the respective bilateral wing severing blade operational assemblies 24 and that button cut removal of whole wing members from the carcass section is one of the optionally selective processing cuts to be made . presuming next the breast portion of the now de - winged carcass section is to be longitudinally split then the breast severing blade operational assembly 26 is set to engage and sever lengthwise by means of the breast severing blade 116 the de - winged carcass section remaining in impaled supportive disposition upon the initially utilized infeed conveyor transport spike 36 upon the next successive indexed drive activation of the infeed and transport conveyor 22 start switch 40 by means of operator torso deflective engagement of switch lever 42 as previously described . as will be hereinafter more clearly illustrated on consideration of subsequent figures , the breast severing blade 116 is secured to the breast severing blade hydraulic motor drive shaft 118 by means of bolt and arbor assembly 120 whereby rotary drive motion is communicated to said severing blade 116 from the breast severing blade hydraulic drive motor 122 . selective optional employment of the breast severing blade operational assembly 26 in carcass section processing operations is simply accomplished by either assembling or not assembling the breast severing blade 116 , as the case may be , to the breast severing blade hydraulic motor drive shaft 118 by means of the bolt and arbor assembly 120 therefor . lastly , in selective optional carcass section processing possibilities with the machine 10 of instant invention there is the alternative capability for either removing the carcass section backbone by employment of the backbone removal severing blade operational assemblies 28 or severing the backbone thereof longitudinally by otherwise utilizing the backbone severing blade operational assembly 30 . considering first with respect to the foregoing an optional processing removal of the carcass section backbone by means of employing the backbone removal severing blade operational assemblies 28 comprised of a downward angled adjustably spaced set of backbone removal severing blades 124 each respectively assembled to rotary drive shafts 126 by means also of bolt and arbor assemblies 120 to be powered by backbone removal severing blade hydraulic drive motors 128 such that a carcass section impaledly supported upon an infeed conveyor transport spike 36 as previously described , and transported thereunder on continued indexed activation of said infeed and transport conveyor 22 as also previously described , will be longitudinally engaged bilaterally the backbone thereof by said backbone removal severing blades 124 whereby the carcass section backbone is severably removed . alternate to processing removal of the carcass section backbone , however , is the longitudinal severing thereof by means of the backbone severing blade operational assembly 30 through employment of a rotary backbone severing blade 130 which connected by bolt and arbor assembly 120 to direct drive shaft 132 communicatively powered by the backbone severing hydraulic drive motor 134 effects a longitudinal splitting of the carcass section backbone rather than a bilaterial severable removal thereof . additional structural components of said machine 10 illustrated in fig1 include the slot and compression bolt adjustment means 136 whereby the conveyor slow down and stop switches 92 and 94 respectively are adjusted and set longitudinally one with respect to the other in accommodating the physical size differences of different poultry species when setting said machine 10 to maintain precise control over carcass sections of a particular species upon which the selective option of button cut whole wing processing removal is being performed . also shown in fig1 with respect to carcass section control and processing placement and position adjustment means are the infeed conveyor transport spike carcass section placement registration stops 138 against which impaledly positioned carcass sections are set when manually loaded sequentially upon an infeed conveyor transport spike 36 at the infeed load position 72 , and connected at the lower end of the infeed conveyor transport spike support bracket 140 is the longitudinally extending transport spike bracket assembly cant beam 142 with adjustment set bolts 144 whereby longitudinally angular adjustment and set of the transport spike 36 cooperatively by compressive differential elevation adjustment of said set bolts 144 against cleats 146 of said conveyor 22 and hence that also of a forward bilateral poultry carcass section 34 carried thereby may be both altered and set with respect to longitudinally horizontal elevation and angular attitude in relation to said operational assembly severing blade processing stations 24 , 26 , 28 or alternately 30 . lastly shown in fig1 is the hydraulic fluid reservoir 148 which serves all hydraulic drive motors of said machine 10 in circulation and recirculation of hydraulic fluid by communicating conduit connections between said reservoir 148 and hydraulic fluid inlet ports 150 and hydraulic fluid outlet ports 152 of each of said hydraulic drive motors respectively . preferably the materials of construction of machine 10 are corrosive resistant metals such as stainless steel or the like , with conduit materials of a suitable temperature resistant impervious plastic , but any other suitable materials or combinations thereof may be used . referring now to fig2 which is an enlarged side elevation of an exemplary eviscerated whole poultry carcass 154 showing therein a typical carcass severing line 156 whereby such a whole poultry carcass 154 is divided into a forward bilateral poultry carcass section 34 , which is that portion of a poultry carcass processed by the method and machine 10 of instant invention , and a rearward bilateral poultry carcass section 158 which is delivered to other machinery for further and separate processing and is not a part of this patent or the invention covered thereby . usually the whole poultry carcass bisecting cut made generally along severing line 156 is a hand operation carried out during the accomplishment of pre - processing steps at another processing station which would include also manual segregation of forward bilateral poultry carcass sections 34 into batches approximating the same size and weight so as to facilitate the setting of said machine 10 and thereafter enhance the initial and continued net output operation thereof during any particular batch processing run . the specific anatomical structures of the forward bilateral poultry carcass section 34 illustrated in fig2 which may be selectively subjected to processing operational treatment by the methods and machine 10 of instant invention , include the breast 160 which may be removed whole or longitudinally split either with or without the backbone 162 therewith and the whole wings 164 comprised of the tip 166 and arm segment 168 respectively joined each other and in turn attached bilaterally either side said forward bilateral poultry carcass section 34 at the shoulder joints 170 proximity the neck opening 172 thereof . likewise , the whole wings 164 may selectively be removed by the button cut method hereof employing said machine 10 of instant invention or respectively left joined the breast 160 longitudinally severed with either the backbone split or removed therefrom . turning now to a concurrent consideration of fig3 and 4 respectively illustrating the machine 10 infeed end 18 with a forward bilateral poultry carcass section 34 impaledly engaged upon an infeed conveyor transport spike 36 as would be said carcass section 34 disposition in manual placement thereon immediately prior to operator torso engagement of the infeed and transport conveyor start switch 40 switch lever 42 whereby an indexed forward infeed movement of the infeed and transport conveyor 22 with said carcass section 34 upon an infeed conveyor transport spike 36 thereof is initiated . as shown in both fig3 and 4 said carcass section 34 has been engaged upon said spike 36 by the manner of manual placement insertion thereof through the carcass section neck opening 172 and further through the body cavity to a point where the respective shoulder joints 170 are each engaged and supportably positioned by the infeed conveyor transport spike carcass section placement registration stops 138 . also shown in fig3 more clearly in terms of function than as previously illustrated in fig1 are the transport spike support bracket stabilizers 182 which are elongated low - friction bar members adapted to adjustably engage the horizontal segments 184 of the infeed conveyor transport spike support brackets 140 in compressively communicating slidable contact when the infeed and transport conveyor 22 is in an indexed advance displacement mode , which stabilizers function to further enable a maintenance of running position control over forward bilateral poultry carcass sections 34 during accomplishment of selective processing operations thereon by the machine 10 of instant invention and the methods thereof . it will be noted that the respective stabilizers 182 are each backed by a corresponding elongated rigid stabilizer support bar member 186 having affixed thereto at regularly repeating spaced intervals downwardly projecting laterally spaced stabilizer bar retention tabs 188 , and for accomplishing positioning adjustment set and supportable retention of the stabilizers 182 there are provided stabilizer maintaining and adjustment brackets 190 . additionally shown in fig3 is the transport spike guide rail 192 which provides overhead lateral stabilization to a carcass section loaded transport spike 36 also during a transport conveyor 22 indexed advance displacement , and operates by providing machine 10 infeed to delivery end close contact lateral and elevation movement restrained slidable engagement guidance capability of an impaledly positioned carcass section therebetween and with the corresponding infeed conveyor transport spike 36 and with the spaced spike connected upward projecting interior surfaces of the placement registration stops 138 . manual placement positioning and loading of a forward bilateral poultry carcass section 34 is preferably as shown respectively in fig3 and 4 , that is , with the carcass lateral oppositely positioned whole wings 164 outward disposed in a configuration such that the respective arm segments 168 thereof resiliently contact along the underside surfaces thereof intermediate the shoulder joints 170 and the tip joints 174 the infeed wing support guide rods 74 further such that upon forward activation of the infeed and transport conveyor 22 the arm segments 168 are engaged intermediate said shoulder joints 170 and tip joints 174 at the rod nip 194 between said infeed wing support guide rods 74 and the pivotally upward disposed spring biased outward wing distension and shoulder joint dislocation guide rods 78 whereby further outward distension of said whole wings 164 are guidably caused upon progressive forward movement of said carcass section 34 to thereby , as will be hereinafter more fully described and discussed , effect respective shoulder joint 170 dislocations prepatory to processing accomplishment of the button cut whole wing removal operation . referring now to fig5 and 6 wherein are respectively illustrated a top plan view of the bilateral wing severing blade operational assemblies 24 , and a corresponding side elevation of one such assembly whereby button cut whole wing removal is accomplished . considering at present , however , only the mechanical element aspects of said assemblies 24 leaving a detailed discussion of the methods of employment per se thereof for a subsequent consideration of the fig1 series . as shown , the respective wing severing blade pivotal shields 112 are supportedly assembled to a shield pivot arm 196 rotatably mounted upon a pivot shaft 198 each of which said pivot arms 196 in turn are respectively biased to a set position by an adjustment bolt 200 operable against a stop plate 202 by the force of a shield return spring 204 , all of which of each such sub - assemblies 114 are adjustably mounted to and supported as a co - active pivotal shield unit by means of the pivotal shield assembly compression clamp 206 . as will be hereinafter illustrated , the advancing carcass section engages the shield lugs 208 thus effecting coactive pivotal breast protective deflection of said shields 112 to that position where the respective carcass section shoulder joints are presented in a dislocated configuration to the wing severing blades 104 , said dislocation configuration being cooperatively accomplished in conjunction with the concurrent outward distension of carcass section whole wing members by the outward wing distension shoulder joint dislocation guide rods 78 cooperatively operable with the infeed wing support guide rods 74 in effecting forward slidable outward movement of the respective arms segments 168 after engagements respectively thereof at the rod nips 194 . the cooperative mechanical set and functioning of the outward wing distension and shoulder joint dislocation guide rods 78 with the wing severing blades 104 and the wing severing blade pivotal shields 112 in accomplishing whole wing button cut removal will be discussed in detail hereinafter on subsequent consideration of the fig1 series hereof . additional reference is made at this point , however , to fig7 which illustrates an enlarged end elevation of one of the bilateral wing severing blade operational assemblies 24 and the shield mounting and support bracket sub - assembly 114 therefor showing in greater detail the relative spatial relationship thereof . regarding now fig8 and 9 in concurrent consideration respectively illustrating a top plan view of the remaining machine 10 selectively optional carcass section severing stations and the delivery end 20 thereof , and a corresponding side elevation each sequentially showing first following the bilateral wing severing station just previously discussed the breast severing blade operational assembly 26 having the breast severing blade 116 which rotatably upward operates within the cleat slot 210 of the infeed and transport conveyor 22 and within the bracket slot 212 between the respective outward disposed legs of the infeed conveyor transport spike support bracket 140 to automatically effect a longitudinal halving cut of the carcass section breast during transport passage thereover . it should be again noted that carcass section positioning and maintenance control during conveyable indexed transport through the remaining severing blade optionally operational assemblies 26 and 28 , or alternate operational assembly 30 , is accomplished by the transport spike guide rail 192 downward compressive slidable retentive force upon a rearward disposed forward leading carcass section impaledly mounted upon a transport spike 36 restrainably against the placement registration stops 138 thereof . lastly , a carcass section may be further processed to severably remove the backbone therefrom by means of the backbone removal severing blade operational assemblies 28 which mount , drive , and direct the backbone removal severing blades to either lateral side of the carcass section backbone as the carcass section is transported therebelow in a positioning and control maintained posture upon a transport spike 36 as immediately above described . as an optional alternate processing operation to severable removal of the carcass section backbone , the backbone may be centrally split by employing the backbone severing blade operational assembly 30 , the alternate employment option being indicated by the rotary backbone severing blade 130 thereof being shown in phantom . considering now the fig1 series wherein is shown a progressive set of illustrations demonstrating the button cut whole wing removal method of the instant machine 10 invention , with the simplified top plan view of fig1 a showing an exemplary transport spike impaledly mounted forward bilateral carcass section 34 just prior to slow down indexed infeed transport thereof to the bilateral wing severing blade operational assemblies 24 with the respective arm segments 168 thereof engaged at the rod nips 194 in the general proximities of the carcass section shoulder joints 170 . the simplified top plan view of fig1 b shows slowed transport positioning of the carcass section 34 protectively within the wing severing blade pivotal shields 112 at that point of advance where the shield lungs 208 thereof are engageably contacted by the advancing rearward leading forward edges of the carcass section whereupon pivotal deflection of the shields 112 commences . it will also be noted that the respective arm segments 168 are in the initial stages of outward distension and slight rearward rotation by means of the outward wing distension and shoulder joint dislocation guide rods 78 in the commencement of shoulder joint 170 dislocation prepatory to whole wing button cut removal , and , the wing severing blade pivotal shields 112 are positioned to prevent wing severing blade 104 premature contact with the carcass section 34 breast 160 . the simplified top plan view of fig1 c shows commencement of whole wing button cut removal where the respective wing severing blade pivotal shields 112 have been equally deflected by continued progressive forward transport engagement with the carcass section 34 breasts 160 to that point where the respective wing severing blades 104 are positioned to engage only the fully distended tissue and tendon materials of the now dislocated shoulder joints 170 in close tolerance severing thereof between the ball - and - socket bone end protuberances without cutting into or otherwise causing to be removed with the whole wings any portion of the carcass section breast meat per se . the simplified top plan view shown in fig1 d illustrates the completion of whole wing button cut removal just prior to the forward infeed indexed cycle stop and conveyable transport of the dewinged carcass section past deflectable engagement with the wing severing blade pivotal shields 112 and the operational spring biased returns thereof to a processing station start position as previously illustrated in fig1 a . at this point the button cut removal wings 214 drop to suitable collection containers and the de - winged carcass section is transported further forward on the next indexed cycle for accomplishment of subsequent optionally selective machine 10 processing operations thereon or alternately forward to the delivery end for removal and consumer use thereof as is . the physical distinction difference is shown between a standard whole wing removal cut 216 with a portion of the breast 160 removed therewith as illustrated in fig1 a , and a button cut removed wing 214 as illustrated in fig1 b is made more clearly evident , wherein the button cut method accomplished by instant machine 10 invention optionally enables effecting automatic removal of whole wing sections from said carcass section with substantially no removal of any breast meat therewith . considering finally the fig1 through fig1 series wherein are illustrated in simplified form the various optionally selective machine 10 blade combinations and the corresponding carcass section 34 processing cuts respectively provided thereby . the fig1 a machine 10 optionally selective blade combination incorporates first a set - up of the bilateral wing severing blade operational assemblies 24 followed by the breast severing blade operational assembly 26 and thereafter the backbone removal severing blade operational assemblies 28 to process a forward bilateral carcass section 34 into a set of button cut removed wings 214 with a pair of longitudinally halved breast sections 160 and a removed backbone 162 as shown in fig1 b . the fig1 a machine 10 blade conbination optionally selective set - up replaces the station 28 blades with the alternately optional backbone severing operational assembly 30 to deliver a set of button cut removed wings 214 and a longitudinally halved breast section set 160 each including a longitudinally bisected backbone half 162 as shown in fig1 b . the fig1 a machine 10 blade conbination optionally selective set - up embodies uses only of the breast severing blade operational assembly 26 and the backbone severing blade operational assembly 30 to yield a longitudinally bisected poultry carcass section comprised of breast 160 halves with whole wings 164 respectively thereto attached as shown in fig1 b . the fig1 a machine 10 blade combination optionally selective set - up replaces the station 30 blade with the alternately optional backbone removal severing blade operational assemblies 28 to deliver in this case a longitudinally bisected poultry carcass section of breast 160 halves with whole wings 164 respectively thereto attached but backbone 162 removed therefrom as shown in corresponding fig1 b . lastly , the fig1 a machine 10 blade combination optionally selective set - up incorporates only the bilateral wing severing blade operational assemblies 24 to deliver a set of button cut removed wings 214 and a whole torso carcass section with backbone 162 remaining therein as shown in corresponding fig1 b . although the invention has been herein shown and described in what is conceived to be the most practical and preferred embodiment , it is recognized that departures may be made therefrom within the scope of the invention , which is not to be limited to the details disclosed herein but is to be accorded the full scope of the claims so as to embrace any and all equivalent devices , apparatus , and methods .
a poultry processing machine for cutting up poultry carcass sections comprising a breast with back and wings attached wherein the sections are manually positioned onto a conveyor spike and transported past various severing stations the spike being angularly and horizontally adjustable and having a stop thereon for properly locating the carcass section , guide elements for first orienting the wings into an extended position and thereby disjointing the shoulder joint whereby shielded rotary knives sever through the joint to remove the wing sections while leaving the breast meat intact , splitting the breast , next using spaced rotary blades for removing the backbone and thereafter alternatively cutting the back transversely of the backbone , the machine being capable of being selectively set to make various cuts .