US1578397A

US1578397A - Stock pusher

Info

Publication number: US1578397A
Application number: US616690A
Authority: US
Inventors: Frank L Cone
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-02-03
Filing date: 1923-02-03
Publication date: 1926-03-30
Anticipated expiration: 1943-03-30

Description

March 30 1926. 1,578,397

F. L. CONE STOCK PUSHER Filed Feb. I5, 1923 www this invention, referenceI may be had'V tol the i vaccompanying `drawings in Which-f Figurel isa side elevation' of the device.V

l at 6 and comprise segmental members,'each` "Figure 3.

Patented Mar. 1925.. 'l

FRANKL. conn, 0F WINDSOR, VERMONT.;

STOCK: Prism-iii. i 1

, Application ifiiefiy February 3,1923. serial No. s1-6,690.

To all whom t may concern.' .Y

Be it llnovv'n that I, FRANK L., Corni, a citizen of' the United States, .residingfat lVinclsor, lin the county Vof lVindsor and State of Vermont, have invented new and useful Improvements in Stock Pushfers (Case B) of which the following is a specification.

This invention relates to stoel;4 pushers Such as are used to engage and feed forvvardthe stock in automatic lathes and screw machines. rFor this purpose vit has been proposed ltonse aplurality of stookv-clamping elements urged-against they stock by spring rings sprung therearound, the* Whole being enclosed Within a sleeve provided with internal shoulders positioned to hold these elements from motion longitudinally Within the sleeve.4 'Thisvconstructiom h oW- ;ever,..has among others tl'iedisadvantage that the size capacity of the machine is consid-v erablygreduced sincelthe internal diameter of the series of elements is materially' smallv er than the internal diameter of the sleeve.

According 4to the Apresent i invention the stock-engaging elements have a? flexible interlocking connection -With the sleeve at one end only by which they can be made of in- `creased diameter since the sleeve is ,not required to house these elementsvand vtheir lSplmss- For a more complete understanding of l Figure 2 is a forward endelevationy Figure 31s a longitudinal section online Figure t is 'a cross section' on line 114-4.

Figure 5 is a perspective of one ofthe stock-engaging elements.

Referring to these figures, l indicates a sleeve having a reduced threaded extremity 2 for attachment to the usual mechanism for imparting movement to the devicei j Theotlier end of the sleeve'l has'an annular recess 3 `of larger diameter than the nor`l mal bore ofthe sleeve which terminatesat its end opposite the portion?.` ivithanfan-l nular inwardly directed rib or vflange/l. The other Aextremity ofthe' recess 3 is formed by means of Va shoulder 5.

.The vstock'-engagigng elements are shown of ywhich has 'one end formed ivith'a portion of largerV diameter as shown at which Between the ribs 8 and 9 are adapted toi/be positioned oliie'or more split" spring rings 10;

As shown the segmentalsections a're'forined to rock on reach-other,`for this purpose each kbeingprovided with a pinor fulcrum' inember '1l projecting fronione side closely` adjacentthe portion'8-j [The springs 10 then' act"` i to `force the outwardei'ids of thefelementj towardy each other, rocking the lmembers about their'ffulcrum' points 11, thisaction yserving also to separate 'the inner ends of1 thev sect-ions to retain 'the portion 7 within l 'the recess 3 and to open thel inner ends of the sections to their maximum' extent to ref-.

Vceive lstoclr presented thereto through the opposite' end ofthe sleeve; `The elements 6 sleeve. .The inner end fof the 'boi'e of ythe members `6 maybe flared as' shownat-lG to conform to the'interior diameteroffthe `thus interfit and interlock ieX'ibly with the` sleeve so that stock may be readily guided "therebetween, the stock', 'when in position, retainingthe elements 6 outl ofvfcontactlivith each other. In order that they may befasse'mbled and disassembled `vvith relation. to

, the sleeve l, the adjacent'l sidesof the portion .G are Vcut aiv'ay as shoiviiat l2 s'ovthat 'the outer ends offthefseginentsf6are permitted to be'separated, these segments 'rocking about their pivots llftoretract-tlie portions from l the recess `3 so as to permit them to be Wthdr'aivn endwise froinithe sleeve Y YA vdoivelpiii l5 is shown as extending inivardly fronifthe'sleeve into the recess 3 and when the elements 6 are in .position rthis 4duivel :projects between an adjacent pair Within the ci'itouts l2-"andso retainsgtliein5- from .rotation` relative" to thev ysleeve-n As s'lioivn' three suclfi'elements are providedl though 'more might be provided if desi-red Iand Wl'ien'threejare used, the one not engaged by the doivelis free to b efroclzed in- Wardlyto'be'releasedfrom the sleeve, WhereiipontheV pairf in 'contact vWith doivel may'befseparate'd therefrom andl removed.

. Itv will be seen from thisdescription thatV the stoclrfengaging 1 elen'ients i are lfleiiibly unitedto" the'sleevelat vone joi'ily'rv and otherwise" are not housed by the "sleeveavhichv Y ingfposition,A I *Y v j A. 'finentsand `one end oflf said sleeve being 30 Y,

therefore is not required to be ofsuiiicient Vinternal diameter to pass-about4 thevstock- 'engagmg i a.

springs so that the internal diametersefthe sleeve and `termed aty one end 'to intertitone 'endlof said sleeve andvme'a'ns'ior urging such elements inwardly'` to gripstock extending therebetween and through "said sleeve. l

`'2. `A device ofthe Class 'd'escribedlc rniipiising af sleeve, a'Series oitv stock-engaging eleinentslongitudinally "'rocka'ble on =each other' and '-'spriiigs`l surrounding" said 'seri'es fand urging 'said elements into stockrl'ainpone 'eiid oi:` s aid series4 or ele- Vformed to interlock.' a

8. A.deviceoi' the class "described coin-l fprising" afsleeve, aseries of stock-'engaging elements rockable on Veach other,psprings surrounding said? series adjacentsaid' end H Vand furging" "said elements into stock-clamping position, the :other endsjot said velements and'one` Hd of said sleeve'being'"orinedto interlock, and ineansffor preventing vrelative rotation or said elements fand' sleeve jabout the lairis of said sleeve.

g 4. A device of the class'des'oribed*comprising asleevehavinglat one end an 'internal enlargement defined at fthewend ofthe sleeve by 'an Vinternal annular rib,v aplurahty ofV segmental stock-engaging elements each `'having a projection 'at `one end Hforming f when said elements areV assembled van' exter- `nal annular, rib Vfitting-into said enlargement and' preventing disengagement Y'of said elements-ifioni saidv sleeve; the'faces' of said lelements adjacent each other being cut away at their inner ends wherebyl their outer ends may' be separated jto' Withdraw their inner enfdsrroin 'interlocking lfengagementk vvith' saidisleeve, and means `for urging's'aid outer v ends togetherfinto clamping relationto stock A`ext'eiiding therebetween vrand through said 5L A device'ofthe class described'conipris- Vinga" sleeve having 4at Vone end 'an' internal V enlargement Adelined at the VVend of the Y sleeve. V'bv an 'internal annular ribryHafplurality101 segmental stoclrenga'gi'ng A "elements veach having ajprojection atf'one' Aend"f'c rining 'ivli'en' said :elenie'i'i'ts are assembled 'an externalv 'anniilar rib fitting into said en'la'rgementl andv preventing disengagement' of said elermentsfromsaidsleeve, the faces of saidA elementsY adjacent each other being ycut away at their inner ends whereby their outer endsilmay be separated t0 Withdraw their inner ends ltrom interlocking engagement ivitlrsaid"sleevefeaclrof said elements having an external projection adjacent its outer end and an external projectionadjacent': the endet said sleeve thesep'rojectionsdelining annular yribs vvli'enr'said 'elements' are Ias-V "sembledyan'd one ory more spring' ringsenfgaging "about saidl elements between said ribs f foiig holding said "outer ends closed against stock therebetween and said inner vends intei'loc'led' With said sleeve.

6, 'A'. 'device ofthe class'deseribed coin-` Aprising ai sleeve having'attoneoend an internal enlargement v`defined atztheend ofthe L.'

sleeve by an internal' annular rib,"A afp-lurali'ty "of segmental 'st0ckiengagii'i'g elements-g each '-fhavi-nga'projection at 4one end'liorniing'when sai'd elements 'areAAV s'seinbledzan externalf'an i nularr'ib"fitting-fi 'tof'"sai` p` 'event ing `disengagement"of saidigeleinents rv oin'said' sleeveytheiaces of sa'idteleinents 1 adjacent eafchf other v being ciitawayA 'at ftheir "inner ends whereby' theirouter; ends* inayfbe enlargement-and 'separated to ivithdraw their innerendsfrfom i'nterlocking engagement 'With 'said y' s'leei'fe,

eachorsaid Ve'lein'eneshaving /anf external projeetion" adjacent its onter 1endandanexy'ternalg, projection adj acent Y thef end tof' said -sleeve these 'rejections ""'denningfannrlar Aribs 'when sai elements' arefasseinbl'ed, none or jniore spring rings' engaging about: said elem-ents" between said-"ribs l'orholding said t y outeivends closed against stock therebetween and said inner endsvv interlook'ed vvithy said sleeve Y," and means for `pr'evei'iting relative rotationbetweensaid sleeve" and elein'ents.

prising a V'sleeve Vhaving`- at one end an zin- V"ternal enlargement defined at the endvv ofrthe sleeve by an internal annular frib,v ai'plurality oi 'segmental stock-engaging' elements each having a projection'at one end' forming when saidV `elements -jare assembled "an 'ex'- ternal annular rib "fitting Vinto saidl enlarge- Vment and i preventing disengagement 4of said.

elements from ksaid sleeve,v the' faces of" said kelements adj acent'each otherbe'ing*cutaway 'at their inner ends whereby 'tlieirlouter ends niay be separated to YWithdraw their inner kends 'from interlocking, 'engagement with said sleeve, each'ot1 said .elements liavingan external" 'proj ection adjacent its vouter end j `and 'an external projection 'adjacent the end `ol said sleeve these projections 'definingjannular ribs when saideleinentsare assembled,

one or more spring rings'engaging about l said elements between "said ribs 'ior holding. 'said' vouter ends' Vclosed 'against 'stockftherebevtween' and" said 'inner ends interlocked with lsaid sleeve, and a pin lixed to said sleeve and` largement definedat the; end of the sleeve yby an internal annular rib, a plurality of segy mental stock-engaging elements eachfhaving a projection at one end forming When said elements are assembled an externalV annular rib itting into said enlargement and preventing disengagement of sa'idV elements from said sleeve, the fac-es of said elements adjacent each other being cutaway at their inner ends whereby their outer lends may be separated to Withdraw their inner yends from interlocking engagement with said sleeve,V

each of said elements having an externall projection adjacent its outer end and an e'xternal projection adjacent the end of said. sleeve these projections defining annular ribsl when said elements are `vassembled, one or more spring rings engaging about said ele-v ments between said'v ribs for holding said outer ends closed against stock therebetween andsaid inner endsl interloclredwith said sleeve, and a pin fixed to saidfsleeve and engaging between a pair of adjacent elements to prevent relative rotationv betweenV said elements and sleeve..

9. A device @i the" Ciassaeseribed com prising -a series of stock-engaging elements, j'

elements, and lsprings for retainingsaid elements assembled with said sleeve.` Y

In testimony whereof I have affixed iny signature- Y coin- FRANK L. GONE,