US948891A - Cutter-head. - Google Patents

Description

Af. LANDIS. f` CUTTER HEAD. APLIcATloN FILED un. 1, 1901. 948,891. Patented Feb s 1910 2 snnnT-snnm 1 f INVENTOR.

WTNESSES: c@ M A v ORA/EY A. B. LNDIS.

GUTTER HEAD. n APPLICATION PIL-BD APR-1. 1907.

Patented Feb.l8, 1910.

2 SHEETS-SEBET 2.

JN VEN T 0R. Ms?. M, BY

ATTORNEY.

IgZZahomU/it may concern."

*XUNITED STATES.'v PATENT onirica.

ABRAHAM B. LAivms,4 .oF- WAYNEsBoRo, PEivivsvmmimi4 eUMERfHEeD i., .-948, 891; spc'meafionpftetfersPatent. y Patented Fish-354910 n 'Alipiiation sied eapril i, 19o-'7. seriaiivmsearw. t

foration -in the body A isada'pted to engage ABRAHAM B..I 1A i\IDIS, a therewith. A screw-threaded pliiga ,in the of the 'United Sta.tes,`res1d1ng at' outer` end of said perforatiuserves as a oro, in the' county of Franklin and means to force said'detent into said groove. Pennsylvaniafhave invented certain v itsl tapered face b earingupon the tapered. wfaiid `useful Improvements in Cutterface of said groove, andi thus serving to s, of which the followingisa speciica' draw the cutter-holders B' back tightly i against the face'of the part A. Each of said cutter-holders B is formed with a transverse Wing B2 projecting to one side thereof and adapted to rest a'gainstytlie face of the art A groove b2 with tapered edges Fsee especially Fig. 3) thereinengage. Said slot. 62 is' formed yof sufiicient length topermit the swinging of the cutterholder on its trunnion required bythe Work.

Said `cam vof a pin B4 the `main body of Ywhich isec centricallymounted in a. v'cylinder B5, which is mounted in a suitable' seat or bearing as in the body A." The rear end of said pin B4 is formed with a head b3 Ybetween which and the main body ofsaid pinis a Yneckz* Said head b3 of each of said pins B* engages with a slot Zr? in the face of a slid-ing collar B (see Figs. 8 and' 9) which isniounted upon the main portion of the partB. Said tieniv r e s aid invention consists in various ini- 10` provements-"in the details ofy construction `'and arrangement 'of parts ,of cutter-heads for cutting threads wh.

which Figure l is a my Vimproved cutter-heads, A elevation. thereoiiF ig. 3 aj vFig 4 2 a. front detail l.longitudil lialsection on the dott-edline` {3"3 in Fig, 2,

2 5 Fig. a similar View on the dotted' line H in 2, Fig. .5 a view. similar to a portionof Fig.- 2, showingflefbhand cutter -holders ,substituted fort-lie right-ha`nd cutter-hol ders inf-the. principal views, and Figs. 6to collar B is formed witlra circumferential 30v A1,3inclusive, detailed Views illustrating difgroove, as shownl` with ivhicha shifting-forli f ferent parts'of the device separately, as will -(not shown) may engage for sliding it back benliereinafter pointed out. and forth. Each cylinder B5 is formed with Said drawings the v'portions marked A gear teeth on its exterior at its rea-r end with represent Vthe main casting'constituting which internal gear teeth on a r1ng 2` are 35,lllod orfram'eof the cutter-head, B the vcutadapted to engage. Said cylinders `are lier-ho ders, rand-C the cutters.v f I thus geared .together byfineans o said in- #f-.The body A is a castingofsui-table form -ternal tooth-ring' A2, vwhich 1s mounted `on toisup ortthe other parts, provided withk a the body A on a seat formed therefor adcentra perforation a6 to clear the work as it jacent to the flange a2. at vthe -f ront end of 40 passes through; the: cutter-die' and has aV said body. Betyveentwo of said cylinders A -flange on its rear end by ,which it ma .be B5 is'mounted a cylinder P in a suitable flbQ1tedto thefaceplatebf the spindle o the bearing' in the part A having' teeth on its .'macliinen theusual manner.; vIt is formed, inner end which are also adapted toz engage ffscrewfthreaded on 'its outside adjacent lto with the internal teeth of said ring A2, (see 4 5; saidiange Afandlias a screw-threaded collFigs.. l2 'and 13).' The outer end otsaid .lar a"mounted.thereon, for a'purposeto'be cylinder A3 1s provided With a slot a" to represently described. c'ei've a screwdriver, `or othertool, for` turn;

' The cutter-holders B are each of 'suitable illg'said cylinder and adyusting said rino- A- ?form on their faces-to receive-the cutters C :11150 .:ahd iny piece land through saidringthe cylinders B 5. Adyare mounted- Ion, or'v` formed `jacent to one side Yoi-said cylinders@ vis l --,withatrunnionffB4 w'iich isniounte'd in' a formed a radial perforation extending guitablefseat or bearing al. infthebody A. throughI the" dan e ainto the p art -in Each'ofsaid't-runnions is formed--ivtha s'e`g" which is mountev ,a sleevea4 havinga tamentalgrove b in its outside -near its frontl "5'5! end thdrearside of which is tapered and. a slidingggdetent-b mountedin'jajradial ,peri

' US" if."

, pered 'or ivetige-shapedv side adapted inipinge against thefsideof Asaid cylinder. 4A

is formed Vwith which a cani B3 is adapted to:

Ba'isv formed on the forward end 'screw "A4-v extends v through. saidl sleevev into la screw-threaded port-ion in the bottom ofsaid; `radial perforation and is thus adapted to force said sleeve down upon the side of said cylinder and The rear end of each ofthe trunnions B" is formed with-atransyerse groove adapted' tov engage with a -traiisverse tongue 67 on part B7 to rotate .Witl1. sa. id trnnnion. Each` mounted in the rear end of the bearing 'for said trunnion in part A and formshalfa. casing for the coiled-spring B3. The otherv part of said casing BD is secured-4 rigidly inl 'the rear end 'of said bearing by means .of la screw 7)? andthe part Bis connected. there.-y With and secured thereto 'by a central screw4 718.Which also serves as a pivottd. permit the of said parts B7 and B have inwardly. exL tending wings b `and b1? respectively,

against the'oppo'sitesides of'which theop` i posite endsv of spring B8 are 'adapted tobear.

As said trunnion Bf turns in'operation it v4turns the part B7. of said `casingand also Wing thawing b9 which serves to compresssaidA between theadvancing side of said?- bm .of the B9, so that 'when the .operating Vparts spring b9 and the Statmnary Wing part are released said springexpands and't-hus the right-hand construction.

l.this character.

v`- normally operates .to. return the cutter-1.

holders -to open position.

tion and operation Vis identical with the corresponding parts as above described for ,."The cutters Gare inoyed holdersB in the, saine manner as shown in some of my former a-pplicationafas for nr,

stance application' No. 35 3,85Q, 'fled `J an. 24,. ".1907, or may be s ecur e d -inany approved The Aoperation is as follows:- The 'size .ofi

the die-coin 'eSedo-fthe cutters C in t-he holders. B 1s adjusted by] rel easing the toothed cylinderV A3.''roln'yfthel clamping sleeve a?, lwhich done by backing the screw A?, when ,by ni'eans ofthe screwdriver sa-id. 1- cylinderASis turned t'o turn the, ring A? `and' throughit fthe cjdinc'lersfBQAs said cyl# 'in'ders B5 turn they/operate to more the pins yLB'lnLVing-the cams B3 on their outer ends'.

in or outin. relation'to the axis of the head,

` accordingtolthe'direetion -otthe rotation,

by reason" 'bi said pins beingiocated. l in said 'cyhnde'rsl 'to `'o'ne side 'of tv elr. centers. haveprovlded a. series of vgraduation marks on thecsurface' of` said ring, A2, as shown in Fig. 1,'whichare adapted to register .withI an indicator. point .0 on the flange a? adjalock it firmly against rotation.;

r is .desiredto op .-fornfardtot -when Athe tapered rear side v,of .said Acam con `adj usted so that"trtfhen'the cutter-' dieis' closed .-thespringis compressed and assoonfa's the movement.

`in the cutter ."desirable. "Haying thus v.cutters mounted on said; cutterh`o1ders,`j means tor adJusting said cutter-holdersfandl .cent to 'it and by' which the-rossmais enabled .to set the `die for `any size of work desired;y Vihen the size desired has been .secured the screw A4 isa' ain tightened to clamp the-cylinder A3. an( locl 1t securely against further'niovenent. This serves to set andjhold the'diefor thesizeof Workidesired. The dieisthen openedy and closed toymea-ns" of theslidingcollar B9 andthe con? nection between said collar said pins B* having the cams B3 ivlnch'egage the grooves b2 Withtapered sides .in they inner faces ot- B6 Fig. Buntil' it abuts' the collar a 'BZ' will be. thrown' inwardlyL and Y the die closed as' shown in Fig'.I l. '\Vhe n it en the' die the: cllar BP is slid e vposit-ioni'shown in Fig. 3

tactingwith the tapered outside Wallet the Wardly nd swing the'cntterholder's to open` the `die. -The spring Bf-Willjalso serve. t-o

throw.l said cutter-'holders.open, each being. 9o

parts, are moved to open saiddiesaid spr-ings" 'Will operate .to.throw'theniropen 'andj-jpre-4 ventany flostfmotion loef- Ween the' parts. It

f Will be seen that bjf reasonjfif the.elongated o utformv of the slots ,122. the sliding `of the camsv lBfvwill operate .to 'swingsa'id l cutter-holders `assaidslotswill slide over the 'holdei'sturn in making-this ([00 Th-.collare.isjadjust'ed on the p'art A .inposi'tion to: serve as an abutment said. pins `as .for thesli'ding collar B6' so that 'tl1e 'parts will be limited-in their closing 1noven'ie11t`-fto j the sizeof'. die -asrfixed by ythe'adjustment of 105 thering A2, oranyslght variation of said adgustinent that may befound ne'cessaryo' 'fully described my said"""i'1r Ventlon, what' Iclalin as new and desire' to 110 `secure b v Letters Patent is:`4

Y- 1. In a cutter-head, the combination,'f-.

`the body, thecutter-hol'ders movablyin om'rtl ed ongsaidlbody aroundthe-axis thereof the opening .and closing the die comprisinga canriorv each. .cutter-holder moullted in' an eccentric bearing 1n said 'bodyuid having a tapered end engaging .n-"ithaft-apered edgelo 'on said. cutter-holder, said'eccentricj bear-V ings, means tor..slidingfsaid cams longitu! tric bearings, substantiallyset iz'ortlr.i

Ina y,cntter-head,.the combination, the body, the cutter-holders movably mounted around the axis of said body, ar cam mounted in an eccentric bearing and formed with a tapered 'outer end v'engaging with a tapered edge of 'each cutter-holder, means 1 3@ face of said body, means for adjusting said ablymounted o n the tace of said body aaround -gear .connecting said several eccentric bearf limiting the moyenient of said sliding ring,

for sliding s aidcams lon'g'itud-in eccentric bearings, means tor rotating v the the-'infin'adjustedpositionl, substantially set *ing said cams, means for rotatin 15 .with internal teeth engaging With the teeth lsaid .eccentric bearings, and means j for securing forth. v 3. a cutter-head, the combination,- of the-body, the cutter-holders mounted on the cutter-holders and opening and closing the die comprising -eccentrically mounted sliding cams engaging with said cutter-holders, eccentricbearings mounted. to rotate and carrying said. sliding cams, means for slid- 0 the Abearings containing them, and means or locking said bearings in adjusted positiom'substan- .tially set forth.

el. In a cutter-head, the combination, of the body, the cutter-holders adjustably mounted on said body around its axis, fand means .for adjusting said cutter-holders comprising a sliding cam engaging Witheach of said cutter-holders, each, of said cams being. mounted in an eccentric bearing, said eccentric bea-rings provided with teeth, and av ring surrounding the body and formed of saidseveral bearings,- nieans for turning said-ring, and means forslidi-ng said cams, vsubstantially set forth. f

5. In a cutter-head, lthe combination', 'of the body., a series ofeutter-liolders adjustits axis, a series of cams mounted to slide f in eccentric .bearings adjacentto saidv cutterholders and formed to engage therewitlna ings, means vfor opeiatingsaid gear, and a sliding ring connected with said several sliding cams, substantially setforth.

' 6. In a cutter-head, the conibii'iatioiiof the4 body', 4the cutter-holders adjustably mounted on theface of said-body around its axis, sliding cams mounted eccentricallyw in a. rotary bearing, -means connecting said' bearings forrotatingthe'm, a sliding collar connected -to said cams for operating them longitudinally, and an adjustable collar for substantially set forth.. Y l

7.1'A cutter-head comprising .a body,.cut--. ter-holders mounted on` trunnions journaled. in beaiings"- in"said body, cams vengaging' slots with tapered edges to one side et the axis of said cutter-holders for swinging theaiionv their truiinions, each lof said cams being mounted eccentrically in a.. cylinder j ournaled in said body, said cylinders, means for turning them to change the posi-tion of the cams,- and means for sliding saidcams -tlie4 body, the cutter-'holders movable" independent of .the movement of said. cylinders. substantially as set. torth. 8. A cutter-head comprising a body. cut- 'having cam-engagingttaees,v a 'ea-iii" mounted. eccentrically in a cylinder journaled in said body with its cani-face engaging with the cam-faces of said' Wing, said cylinders each being formed witligear teeth, an internallyl toothed ring'surround'ing said body and engaging with the teeth of said 4'several cylii? ders, means for operating said ring, land means for operating said several cams independent-of the movement of thecylinders, substantially as set forth.

9. .In a cutter-head, the combina,

i011, of

bearings 'around the axis of said bodygfcanis mounted Aeccen'trically in toothed cylinders at intervals around said body, each cani engaging with onev of said cutter-holders, a toothed ring mounted on said body engaging with veach of said toothed cylinders, means for' turning said toothed ring Whereby said cylinders may be moved simultaneously, means for locking said toothed ring whereby said several cylinders are locked in position, and means for moving said cams longitudinally independent of the movement of said cylinders, substantially as set forth.

4l0'.A I n avcutter-head, the combination. ot

the body, the movable 'cutter-holders, the

movable cams for operating said cutterholders, each of said cainsbeing eccentrically, mounted in a toothed cylinder, said toothed" cylinders journaled etween Vsaid cutterholders, a'toothed'fring mounted on said bod yengaging'with each of said cylinders,

-sai toothed ring being formed with a graduated Scale or indicator on its Sui-face, and means for' operatingfsaidl toothed ring to adjust the-die" for different sizes of Work,

substantiallyas set- Vfjorthl v -f l1. In a cutter-die,1the combination, of the body, the' cutter-holders mounted on piyots around the axis of said body and formed with side-wings, cams yfor operating said cutter-holders mounted eccentrically in toothed cylinders and adapted -to slide longitudinallyfin said, cylinders with their cani ends-engaging slots in said wings, said cylinders,:means for rotating them, means for 'ldcltingt1ieni iii fixed position, and means for sliding said y ea'i'iis in said cylinders independent of ``the rotary increment thereof, substantiallgti as set Jforth.'

In Witness whereof. I have hereunto 'set my liandiand seal at lvashington D. 1-this 20th day of March. D; nineteen hundred andv seten.

' XBRAHAIBI B. LANDIS. [1.. 5.-]

Witnesses :V i

:V E. H. Paniiins,

E IV. BRADFORD.

Images