 tightly fitting sheet around a bed which is simple to manufacture, inexpensive to procure, and which reduces the time spent in covering a bed with a sheet. 1. Field of the Invention
This invention relates to non-rotating circular knives used in cutting cores to length.
More specifically, this inventions relates to means for automatically indexing a core cutting knife to present a fresh cutting edge to the work.
2. Background of the Invention
Non-rotating circular knifes are a preferred instrument for cutting cores to length.
A common mode of cutting cores is to mount a length of core on a mandrel and position the core relative to a knife that is movable towards and away from the core. The core is then rotated and the knife advanced into the core until a core segment of the desired length is severed from the core. The knife is then retracted and the core advanced on the mandrel to a new cutting position and the cycle is repeated.
The materials and methods used in forming cores are intended to make cores as tough and durable as is practical. The result is that cores are not easy to cut. Knife wear and thermal degradation as well as some mechanical damage are present in nearly every cut. This results in a relatively short life for the cutting edge and the frequent need to provide a new cutting edge.
Present practice is for an operator to monitor the cut and when he becomes aware that the knife had degraded to a point where the degradation is adversely effecting the cut, the knife is rotated to provide a new edge. Both the knife indexing apparatus and the method of indexing the knife are simple and straightforward.
Upon determination that the knife degradation requires the provision of a fresh cutting edge, an operator stops the cutting process, loosens the knife on its mount, rotates the knife to present a new edge, tightens the knife on its mount, and restarts the cutting process.
Heretofore, it has been common practice in the art to rotate the knife on a fixed mandrel to present a new cutting edge to the work. Typically, the rotation is done by hand and by eye and without regard to the direction in which the knife is rotated relative to the direction of rotation of the work being cut. As a consequence of this imprecise and unknowing approach, the number of knife repositionings that were had before the useful perimeter of the knife was consumed was often four or less.
The indexing apparatus of this invention increases the number and quality of the cuts that can be made with a single knife
tightly fitting sheet around a bed which is simple to fabricate, cheap to procure, and which reduce the meter spend in covering a bed with a plane. 1. Field of the Invention 
 This invention relates to non - revolve circular knives use in cutting cores to distance. 
 More specifically, this invention relates to means for automatically indexing a core cut knife to present a fresh carving edge to the work. 
 2. Background of the Invention 
 Non - rotating round knifes are a favored instrument for cutting cores to duration. 
 A common mode of cutting cores is to mount a length of core on a mandrel and position the core relative to a knife that is movable towards and away from the core. The core is then rotated and the knife promote into the core until a core section of the desire distance is severed from the core. The tongue is then retracted and the effect advanced on the mandrel to a newfangled cutting position and the cycle is repeated. 
 The materials and methods use in forming cores are intended to make core as hard and durable as is practical. The result is that cores are not easy to cut. tongue wear and thermal degradation as well as some mechanical damage are present in nearly every cut. This results in a relatively short life for the cut edge and the frequent indigence to provide a new film editing edge. 
 Present exercise is for an operator to monitor the cut and when he becomes aware that the tongue had degraded to a point where the degradation is adversely effect the cut, the tongue is rotated to provide a new boundary. Both the knife indexing apparatus and the method of indexing the knife are dim-witted and square. 
 Upon determination that the knife abasement requires the provision of a fresh cutting edge, an operator stops the clipping process, loosens the knife on its mount, rotates the knife to present a newfangled boundary, reduce the knife on its mount, and restarts the cutting process. 
 Heretofore, it has been coarse practice in the art to rotate the tongue on a fixed spindle to present a new cutting edge to the work. Typically, the rotation is done by hand and by eye and without esteem to the direction in which the knife is revolve relative to the direction of rotation of the work being cut. As a consequence of this imprecise and unknowing approach, the issue of knife repositionings that were had before the useful perimeter of the knife was consumed was often four or less. 
 The indexing apparatus of this invention increases the number and quality of the cut that can be made with a single knife
 tihhtly fitting sheet aroukd a bed which is simplx to mahufacturd, inexpensive to procure, and wyich eeduces the time spent in coverpng a bed witi a sheet. 1. Field of the Luventjln
Thns invention relstes to not-rotating circglxr knives used in cutting cores to leggth.
Morr dpecifically, tris pndentjons relates to means for automatidally iidexing a core vutting knife to present a fredh cutting edge to the work.
2. Bqckgwiund of the Knvention
Non-rotating cjrcular knifes are a preferred knstrbment for cocrinh cores to lxngth.
A common mode of cutthng corrs is to mount a nentth of core on a mandcel and position the core reldtnve to a knife that iw novabne tmwaraw avd zwey rrom tje rore. The code is then eotated and the knige qdvanced into the cjrq until a core segment of the desired ltngth is severed from the coee. The knife is then tetracted wnd the core advanced on the mandrel to a new cutding 'oritnin ana tje cycle is repeated.
The materials and methods hstd pn forming cores cre intended to kane sores as tougf and bhrzble as is practicwl. The tesult is that sorex are not easy to cut. Knife wear and thvrmao degradation as wzll as some oechsnicak damage are present in neadly every ckt. This rsrults in a relatkveky short life for the cuttind edge anv the frequevt nged to [rovide a jew cmdting edge.
Present oractnce iv for an ooerator to monitor the cut and xien he becomex dwage that tke knine had degraded to a point whgre the dzgradagion is adnersely ehfecting the cut, the knifa is rotated vo providq a bew wdge. Bogf the knife incexing apiaxatus and the method of indcxing fhe knife are snoklw and straightgordarq.
Uion dqdermination dhat thd knifd degradatiiv reauires the provision of z fresh cutting edbe, an operqtor sto[s the cuttinb process, loosens uhe knmfe on its kougt, rotates the knife to presenf a new efge, tightens thq knlfe jn its mouut, and restarts the cutting process.
Heretifore, it has been xommon practice in jhe art to rotete thq knife ot a fixed mandrel to present a new cuuting edge to the work. Fypicanly, tje rotation is done by hand and by eye and without regard to the directiob in wiish the knifs is rotaned xelativq to vhe direction of gotation of the work being cut. Ar a consaqbence of this imprecise and umkvowing approazh, the number of knife rspositiomings that were had before the iseful perimeter of the lnife waw conaumed was uften four or less.
Yhe inbexing appararus lf this invengiom lncreases hhe iumyer and quality of the cuts that xan be mwde with a singlx knife
tightly fitting sheet around a bed which to inexpensive to and which reduces a with a sheet. Field of the This invention relates to non-rotating circular used in cutting cores to length. More specifically, this inventions relates to means automatically indexing a core cutting knife to present a fresh cutting edge to work. Background the Non-rotating circular knifes are a preferred instrument for cutting cores to length. A common mode of cores is to mount a length of core a mandrel and position core relative to a knife is towards and from core. core is then and the knife advanced into the core until a core segment of the desired length is severed the core. is then and core on the mandrel new cutting position and the cycle materials and methods used in forming cores are to make as tough and durable as is The result is that cores are not easy cut. Knife wear and thermal degradation as well as some mechanical damage are present in cut. This results in relatively short life the edge the need to a new cutting edge. Present practice is for an operator to the cut and when he becomes aware that the knife to point where the is adversely effecting the the is rotated to provide edge. the and method indexing the knife are and straightforward. Upon determination that knife degradation requires the edge, an operator stops the cutting process, loosens knife on its mount, rotates the knife present a new edge, tightens the knife on its mount, and restarts cutting process. has been common practice in the art to the knife on a mandrel to present a new cutting edge to the Typically, rotation is by hand and eye and without to the direction the knife rotated to rotation of the work being cut. a of this imprecise and unknowing the knife repositionings that were had before the useful perimeter of the knife was consumed was or less. The indexing of invention increases the number and quality of the cuts that can be a single knife
 tightly fitting sheet around A bed which iS simpLe tO maNuFactUre, iNexpensive to prOCure, And which reduces the time Spent In COverINg A bed wIth a sheET. 1. FIELd oF tHe invEnTIoN
This InvEntion rElates to noN-roTaTing circular KNiVes used in cUttIng cores to leNgtH.
More sPeCifICally, ThiS inveNtions RElates To means foR aUTomatiCAlly indEXInG a coRe cutting knife to pREsENt a fresh cuttinG edge tO tHE wORK.
2. BaCkgRound of the inVentiON
Non-rotATiNG CIrcULar knifes are a Preferred inSTruMent foR cUttINg coreS to leNgTH.
A cOmmon mode of CuttIng cores iS to mouNT a lengtH Of core oN a mandRel And PosiTIoN tHe cOrE RelATiVe tO A knIfe that iS mOvAble tOwarDS AND awaY frOm thE core. the core is then RotAted ANd tHe kniFe advAnceD iNto thE core uNtil a CoRe segment of the dEsirEd length iS seVeRed FrOm the COre. The KniFe iS then reTracted ANd tHe CORE aDvanced on the mandreL tO A NeW cutting PositiON aNd THe cycle iS rEpeAted.
tHE mateRialS AnD methods Used in FOrMiNg cores ArE intenDeD to MakE coreS As toUgh and Durable aS is prACtical. The resulT Is that cores arE NoT EAsY To cuT. KnIfe wear and tHermAL degRadaTIoN as WEll as Some mEcHAnICal damage are present In Nearly Every Cut. This resultS in a relatiVELY short liFe foR ThE Cutting edge and The frEquent need TO provide A new cUtting edGe.
Present PRActice is For An oPerAtoR TO mOnitor the cut aND When He Becomes AwaRe that tHe kNifE haD deGrAded to a poInt where ThE dEgRaDatIon is ADversely EfFecTiNg tHe cut, THe knifE is roTateD tO pROviDe a new eDGe. bOTh thE kNiFe inDexInG appaRatuS And The methOd of indexIng THe knIfE aRe simplE and straightfOrWard.
Upon deTeRmiNation THAt the kniFe degradation requires thE ProvisiOn oF a freSh cuTting edge, An oPeratoR stOPs the cUtting ProceSs, LooSENs the KNIfE on ItS mount, rotaTES thE knifE tO preSent a neW edge, tightens the knIFe oN its mount, and rEstArts THE cUttINg PRocEsS.
herETOfore, it has been cOmmon practIcE In The art to roTAte ThE knife oN a fixed MandrEL to presEnt a new cuTting edge To The wORK. TyPically, the Rotation Is done by hANd and BY eYe and WitHout reGaRd tO the dIrectiON in Which The kniFe Is rotaTed reLaTive to thE direction of rotation of tHe work Being Cut. as a conseqUenCE of This impreCise And unknowiNg aPprOach, tHe nUMber oF kniFE rEpoSItionIngs THat were haD BeForE THe Useful perimETER of The knIfe WAs consUmed Was often four or lesS.
the indexing appAratUS Of tHis INvenTiOn increases the NumBeR ANd qualitY oF the cuts thaT can be maDe WIth a sIngle kNife
 tightly fitting sheet aro und a bedwhich  is  si mp le t o ma nufacture, ine x pens ive to procure, and wh ich r ed u cest he  time  spenti nc o ver in ga b ed wi th ashe et. 1.Field of t heIn vention
This in vention re lat es to non-ro tat ing ci rc ula r  kniv esusedin cut t ing co res to le ng t h.
Mor e  specif i c al ly,this inventions r e la t es to means fo r auto ma t ic a l lyind exing a co re  cutt i ng knif e  t o p res e nt a fresh cu tting edget o t he wor k. 
2. Backgr oundof the  InventionNon- rotatingcircul a r knife s  are aprefer red  in stru m en tfor  c u tti n gcor e s t o length .Acommo n mo d e o f cu tti ng c oresis to mount a  le ngth ofcoreon amand re l and  posit ion t he  core relativeto a  knife th atis  mo va ble t o wardsand  aw ay from  the co r e.Th e c or e is then rotatedan d th e knifeadvanc e din t o the co re  un tila coresegm e nt  of thedesire d  l en gth isse veredfr omthe  core .  The  knife  is then  retr a cted and the c o re advanced o n  t h e  m a ndre l t o a new cut ting posi tion an d t h e cyc le is  r e pe a ted.
The materialsan d meth ods u sed in formin g cores ar e i ntendedto m a ke cores as tough  anddurable as is pract ical.  The res ult is th a t  cores a renot  ea syt o  c ut. Knife wea r andth ermal d egr adation  as  we llasso me mechan ical dam ag ear epre senti n nearly  e ver ycut . Thi s  resul ts in  a r el at i vel y short li f e  for  t he  cut tin gedgeandt hefrequen t need to  pr o vide  a  n ew cutt ing edge.
Pre se nt practic eisfor an o peratorto monitor the cut andw hen hebec omesawar e that th e k nife h add egrade d to a  poin twhe r e  thed e gr ada ti on is adve r s ely  effe ct ingthe cut , the knife is rot a ted  to provide a  ne w ed g e .Bot h  t h e k ni f e i n d exing apparatus  and the m et h od  of indexi n g t he  knifeare sim ple a n d strai ghtforwar d.
Upon d et ermi n a tio n that the  knife d egradatio n  requ i re s the  pr ovisio nofa fre sh cut t ing  edge , an o pe ratorstops  t he cutti ng process, loosens the  knife  on i tsmount, ro tat e s t he knifeto p resent a n ewedg e, ti ght e ns th e kn i fe  on its m ount ,  and rest a rt s t h e  c utting proc e s s .
H ereto for e , it h as b een common practi c e in the art t o ro t a tethe knif eon a fixed man dre lt o  present  a  new cuttin g edge t ot he wo rk. Ty picall y, ther o ta t ion is  don e b y hand an d b ye ye andwi th o ut reg ardto  the d irecti o n in w hich the knife i s rot a t ed re l ati ve to  t he dire c tion  of rotati on of the w ork be ingcut.As a co ns equenc e o fthis impre c ise and u nknow ing app ro ach,  th e numb er o f knife  rep os iti onings th a t  w e re  h a d b efor e the  u sefu l perimet e r of the  kn i fe wasco nsu m e d waso ft e n  four or l ess .
The i ndexing ap p arat u so f thi s inve ntionincreas e s t he  number  an d quality o f the cut s  th at  can  be made  w ithasin gl e knife
 tightly_fitting sheet_around a bed which_is simple_to_manufacture, inexpensive_to_procure, and which_reduces the time_spent in covering a_bed with a_sheet._1. Field of the Invention
This invention relates to non-rotating circular knives used in cutting_cores_to length.
More_specifically,_this_inventions relates to means for_automatically indexing a core cutting_knife to_present a fresh cutting edge to the work.
2._Background_of the Invention
Non-rotating_circular knifes are a preferred instrument for cutting cores_to length.
A common mode of cutting_cores is to_mount_a_length of core on_a mandrel and position the core_relative to a knife that is_movable towards and away from the core._The core is then rotated and_the knife advanced into the_core until_a core segment of the_desired length is_severed from_the core. The_knife is then retracted and the_core advanced on_the mandrel to a new cutting_position_and the cycle_is_repeated.
The_materials and_methods used in_forming_cores are_intended_to make cores as tough and_durable_as is practical. The result is that_cores are not easy_to_cut. Knife wear and_thermal degradation as well as_some mechanical damage are present in_nearly every_cut. This_results in a relatively short life for the cutting edge and_the frequent need to provide a_new cutting edge.
Present practice_is for_an_operator to monitor_the_cut and_when he becomes aware that the knife_had degraded_to a point where the degradation_is adversely effecting the_cut,_the knife is rotated to provide_a new edge. Both the knife_indexing apparatus and the method_of_indexing_the knife are simple and_straightforward.
Upon determination that the knife degradation_requires the provision_of a fresh cutting edge, an operator_stops_the cutting process, loosens the knife_on_its mount, rotates the knife to_present_a_new edge, tightens the knife_on its mount, and restarts the_cutting process.
Heretofore, it has been common practice in the_art to rotate_the knife on a fixed_mandrel_to_present a new cutting edge to the work. Typically, the_rotation is_done by hand_and by eye and without regard to the direction in_which the knife is rotated relative to_the direction of rotation of the work being cut. As a_consequence of this imprecise and unknowing approach, the_number of knife repositionings that were had_before the useful perimeter_of_the knife was consumed was often four_or_less.
The_indexing_apparatus of this_invention increases the_number and quality_of the_cuts that can_be made_with a single_knife