US1785409A - Record-resurfacing machine - Google Patents

Description

DecQIG; 1930. v. L. FRYKIQIAN 1,785,409

RECORD'RESURFACING MACHINE Filed July 23, 1927 2 SheetS- Sheet f1 INVENTOR. VICTOR L. FRYKMAN ORNEYY Dec. 16,1930. v. L. FRYKMAN 1,785,409

RECORD RESURFACING MACHINE Filed July 25, 927 2 Sheets-Sheet 2 VENTOR. VICTOR RY KMAN 'Paiten ted Dec; 1 6; 19230 UNITED {mice vro'ron L. FRYKMAN, or TBRIDG'EPORT, CONNECTICUT, nssien'on "r Moran-town *ooRroR'ATIoN, OFQBRIDGEPORTQ CONNECTICUT, iooRronATroN onimw your:

nnoonii jensunrnorne M C INE,

AppHcation fiied J 'iil3y2a, 1927.1 serieim enze is. d

This invention relates to record-resurfac machines, and more part cularly to an in proved machine for shaving IfeCOrd"bi2L'I1l S, particularly those intended for use WithdlO j tation machines. e f I: 1 f d An object of the present invention is to provide improved means to. facilitate the setting of arecord-engaging tool in proper'operating position forresurfacinga record.

Another object of the present invention is to provide means to automatically advance:

the knife-bar carriage successive steps of pre-i deter ined extent towarditherecord for sue- J ceive another recordtohe shaved.

set position, and ejecting a record from a reccessive finishing cuts.

means for restoring the automatie knifeadvancing means, releasing the knife from ord-supporting mandrel, so that asingle operation the maohlne is made ready'to re- In the accompanying drawingswhich illustrateone form of the invention, that at present Preferred Figure 1 'is "a right ha d end, Qumra partly in section; of a recordresurfacing ma chine with the parts shown in the operating knife-bar releasing means.

V a modified form ofv the inventionqf positions. t g o Fig. 2 isva sectional iewtaken throughthe line 22 of Fig.1, showing indetail; the automatic step-by-step operating knire dmm ing' means of the present invention'.

Fig. 3 is a fragmentary topplan View of parts of a record-resurfacing machine and shows the relation of the reCOrd-e eotOr to'the Fig.4 is a View'similar to Fig, 2, showing The. record-resurfacing. machine shown;

herein: is particularly adapted for shaving orotherwise resurfacing phonograph record standard 11 and a right-hand st andard '(n0t shown) between which is supported a car- 'riage rod '12 on which a carriage 13 sguided for moyement longitudinally ofthe machine; A carriage 13 extends forwardly and upcarriage.

';be1t .23 which engagesa 24' to'd'riVe-the mandrel;

w'ard ly from the carriage rod 12 to a; point whereitis'proVided-with ajweightan d hanfd; p n piecegltwhich'is adapted'to be grasped by the, operator whenf manually, moving the Located in front of the carriage-rod12 and: supported inthe-usual manner, is a'mandrel l5having a mandrel shaft 16 adapted to supfport-a record 17, iMovement of the knife-bar -c'arriagef13 longitudinally of the record 17 for resurfacing the latter, is] effected by means of a feed-screw l 8e'n'gagedfby afeed-jnut 19" mountedvon the carriage 13; j Thef eed-screw his smounted between melee-h nd standard .is cau'sedto rotate; coordinately with the a mandrel shaft 16 by m'eans v,of-a jconnecting belt 20 engaging a pulley 21 onthe feed-screw g shaft 18 and pulley 22 carriedby the .mani drelshaft 16.1 Themandrel shaft 16 is driven ll ta'nd the right-hand standard (not shown by a 'suitablefmotorgwot shown) 1 driving a "Theaboy described: structure and mecha- "xnism is common to record-resurfacing machine's heretofore manufactured, and fused I "Phonograph "record-b1anks are customarily shaved" when it is desired to obliterate a I record preparatory toprodi loinga'new 'recv 0rd, onithe s'urface vof the blank But, this "operation maybe accomplished bynieans of burnjishing;melting and other arrangements 0 i I 'and'in so far as some of the salient features of thepre sent'invention are concerned, it is immater al whether the record-engaging tooi is a 1mife,';burnisher,' or other device How- 7 ever, since the method of" cutting-isthe one anere1suatpu11e most-frequently used and the most preferable V V at present, it is illustrated-herein. B v

The A device as 'illustrated} herein has, a"

hnife barl 25 adapted {to carryfat its enda V V gmife 26,11su'a11y,,1nade of sapphireor other blanks, particularly those adapted to' be used hard stone A gage-barZZjsinterconnected with the knife-bar 25 by atie-b'ar 28 so that are slida'hl 'e in "the housing 29'forn1 ing part of the carriage 1 3 for movement en "bloc.

position away from the record 17 bya spring 'a0' When arecord 17 i placed 0 t mandrel" l5. audit is desired to take a first or prepare tory cut, the/knife 26 maybe quickly set for this cut by the operatorpressing on a finger-' piece Slxonthe end ofthe gage-bar and,mov-- ing the knife-bar ensemble forwardly against; "the pressure ofthe spring 30 until the gage bar 27 contacts with the surface of the reco'r'cl 17. Then the knife-bar is locked in the ,posii-jf tion so determined by drawinga'yieldi'ng splits ectionl32 of the housing 29 togetherby ;The threads-of thejjs crew33"fare suchjthat when the leverg l is moved in the directionof ego thearrow shown'in Fig. 1, the knife-bar is locked against'movement. {The setting ofth'o {knife-bar is preferably efiected. while the same: 1

carriage is at the position where it finished shaving the previous record, in, which pcsi tion'the knife 26 is out ofrangeor beyond the; record-surface and the gage is 'locatedabove the record as shown Fig,'3 to engage the.

When the'knife-barfl'l is so stein predetermined position with relation to the record 17 the operatorgra'sps the hand-piece l l'and swings the carriage 13 upwardly, until a lug 85 on the carriage engages an: abutment 36 er' g p f t f, the base 1 fTh movem n prises a shoe 38 which is vertically movable of the carriage upwardly moves the interconnected knife-bar'25 andga'ge-bar 27 rearwardly away from the -reco rd l'l also 7 moves gum reed-minis "outiof engagement with the; feed-screwl18, as hereinafter described. While so raised,.the carriage is slid longitudinally of therecord 17 along the carriage rod 12 to the oppositeendoftherecord 17 where the carriage 13 is allowedto swing 'downwardly to normal position. In this'position, the feed-nut 19fagain engages with the feed-screWflSg I Y i Y Thenthe motor or: other driver started,

the record is rotated by the mandrel andthe carriage 13'is moved longitudinally over the record .17 on thecarriagerod l2 by rotation of the feed-screw 18 thus causingfthe knife -26 to engage the record 17 and remove a prei determined amount of material, including all or part of the recording thereon; In this r travel, the gage-bar 27 follows the knife 26 7 across the record and hen'ce, being always above 'aiportionflof the record gustshaved, 1 3 any desired manner, However, since thepawl-and ratchetmechani'sm, as above H 1. stated, isoperated as an incident to the move-r] 13'cont1nuestobe fed longirecord. 5

The carriage v tudinally until the knife-bjar is'passed be- ;yond the end or the record-, i. e. to the posif ts tion shown in Fig. 3, where, as usual it stops because the feed-hutlQ runs ofi fthe'threaded portion of the feed-screw 18 onto an 1111- it threaded portion thereof.

order to take,inaddition to the first orpreparatory out, other light or finishing .cuts of predetermined depth without necessitating ;the resetti-ng of the knife-bar 25,.the present invention;provides means for automatically ad ustmgthe carriage 13 to advance the kn1fe bar m0unted "therein toward the rec- 0rd a predetermined extent incidental to i eachfoperationoqt moving the carriage 13 to -position to start shaving a record; 1 r a screw 33 havingfsecuredtoit a' le ver.34.,

"Fo'r'this purpose, the present invention takes advantage of the iactthat the carriage itself-has-pivotal movement as wellas a slidby pivotal" movement of thecarriage, the usual shoe part of the carriage which rides on the front rail is' dispensed with 'and instead -the present invention provides mechanism vfor-lmvei'ing the carriage and conee quently effecting forward movement-oi the knife-bar towardthe record whenit is desired to advance the knifeffor successive inishing cuts. 1

A. The ,jiecha'nisin iorsaccomplishing this, ac-

cording tothe oresent invention, in the form shown inythe accompanying drawings, commetrically opposit'e'vsid'es by fianges 42 and 43 on the shoe-38.: The disc 401s mounted Ito rotatevonthe studel whiclipasses through an-elongated slot, in the vshoe 38 permitting vertical movement of the shoe.

The off-set disc or cam 4:0 which controls the shoe 88 is held in initial or starting positionwith the stop ear t eng'aging a stoppin 46" oirthe part, 13a by a spring 4:7 coiled with n arecess 111 the ofilset disc 40 and anchored-onthe stud 41. It is moved from this initial or startingposition step-by-step preierably by a pawl and-ratchet mechanism such as aratchet-disc 4:8 .se cured to the off-set or cam disc lO.

The pawl- 4-9 0 V v fthis pawl and ratchet mechan s'm may be conveniently mounted on the carr age for movement relative to the ratchet mentofzthe carriage 13 to position to start i shaving Trecord, which movement. includes riage to release the-IzEeed-nut from the feedpreparatOly vertical-movement of the ,cari "no r y j 48 when the rock-shaft='65 is rotated; Oppowhen'therock-shatt65isrotated."

adapted to be manually operated after a rec rd has been resurfaced." f

above," attention is' called to the fact'that the record-resurfacing machine shown in the ac-.

companying drawings is provided, as is nsua'l in such machines, with means for facilitating the removal ofthe record fr omthe mandrel.

' Thismeans, as shownfinthfe accompanying o tate the rock shaft 65 and thereby move' 'the record. V I x V w J Inforder 'to'carry'out multiple functions of drawings, is in the form QOf a recor'd e'j'ector i having a reco'rdgejector plungerT6O slidable longitudinally ofjthe machine in the standard 61 and normally held in'inoperativei position by-a'spriiig 62, The plunger is'moved forwar ly Until-ahead Portion 63 engages the recordto loosenit from the fm'andrel by a, leverQ64 mounted on a rocker sha ft 65 journaled in the frontrail 37 ands standard 66. At its-front end, the rock shaft 65 has a'manually operablelever- 67, which serves to rolever 64 and related plunger 60"toward the the present "invention above referred 'toi the rock shaft 'is fextencled irearwardly tbeyo'nd the standard-66 where it is Iprovided with a lever 68 adapted to overlie? airparm 69 of a pendant link to which is pivotallyfconnected to an arm" 71 on the jknife-bar locking vscrew "33, and which issupported atflits lower end byail extension 70a "of the carriage';,13; Hence, when the operator ejects thefrec'ord byjrocking the shatt'65,"thelever 68'm'oves with the ,rockeshagtt until 'it teams with the arm 69 on thelink v70 and moves the latter downwardly', rotating the locking screw 3a to release the knife-bai-'- ensemble so that the latter may be returned to inoperativegpo sitionlby the spring 30. I-tiwill thus'beseen that the operator, without any "mental effort, "releases? the knife-bar lock each time thatjthe record-ejector is operated to remove a'record from the mandrel! means, the. front end of the "rock. shaft 65 nearthe sliderail 37 is provided with an arm 71 havingacam IQ-which contacts'with the extension 73 ofthefeed pawl 49 and moves the latter out of engagement with the'ratch'et site the cam 72 on the arni'l'l is another cam i '74 which engages the extension 75 ,of the back-check or stop pawl 52 and moves the latterput ofengagement with theratchetS Therefore, theoperation'. If egecting the record also causes the cam arm 72a to be lated shoe n3 8to initial "or starting position.

, Thecarn arm 7241 which causes the auto matic advancing means to be restored, and

To restore the 'automatic 'knife-advancing V p link/Z0 for:releasing'the'knitebar ensemble, Before continuing the description of the are returned to normal positions by means of the spring 62'mou'ntedflonthe, ej ector' plun gerfl and are held finthis normal position by theplunger head 63 contactingwith the standard- 1;, thdrock-"sh'aft being con- :nected to the plunger so. as to move there- 7 within bothdirectionm The cam 72 on'the arm 26; which engages the extension 7 3 on the feed-,pa-wl/i-9 is arol itnge ClitOr be normally engaged by the extension and this limit the count-er, clockwise shaving,' 't he feed pawl' 49 will not move'so farto the'left as seen in- Fig. 2*that it cannot re-engage' the ratchet" 48 whenthe cars-- riage again reach-estheendoit" 1ts"shav1ng movement when t' ls desired to advance the V carriage andhence the knife for taking a finishing cut,

t n will'bented from the above, that the interconnection between the knife-bar re leasing v means and the knife advancing means'wlth the record GjQCtOI' is only effect- '6Cl at the time thatthe carriage ism the extreme end of its shaving movement, in V which position, it is allowed to remain until the record has been" removed and a new record substituted therefor. 1 Hence, inad-, verten t oraccidental operation of the record ejector while the carriage is in any position other than the position in which it is to be set'does' not' release the knife-bar lock and restore'the'knif-e-bar advancing means, and

hence such' accidental "movement doesnot makefit necessaryfor the "operator to reset :the machine again to properly shave the record; v7

The same re'sult'is accomplished in a different manner in thepembodim'ent of this invention' shown in Fig.4. Inj'this modification, "th-e parts'with-the exception of the levers-68 are the same as those shown in Figs. 1,2 and 3. lh'e lever 68, however, is omitted and a modified lever 68a is used. Thismodified lever' 68a has two projections 7.7 and 78 "adapted respectively to overlie and underlie the arm 69 on the link 70. Hence,'eithe' r the projection 77 may engage the arm 69 to operate the pendant link 70 in case the record-ej ector lever 67 is actuated, or the arm 69 ofthe pendant link 70-. may engage the projection 78 to operate the lever 68min case the release lever 34eis actuated.

.Thus, the 'recordejector may; be operated and the knife-advancing*meansrestored by manual operation of the lever 34 which re- .leases the knife-bar lockfor the knife-advanc ing means may be restored and" the v knife-bar lockingmeans released by manual "operationof the record-ejectorf Hence, the

y et-bein g operable'onlyyvhen'thejearriage'isin predeterm nedpos tion;'"- [P140 combinationof a fframe; a" mandrel forQsup-l porting a record to' -be resurfaced; carriage I mountedon saidfra'me'; a knifeniounted on said carriage manually operable means for "locking said knifejon the carriage; means for advancing the knifeltoward'afrecord;'

' f-ineans for ejecting record fromsaid m'anj .;drel; and means for simultaneously restoring "the carriage advancing means, ejecting the 7 in 1 and releasing the 'knife-locking record-resurfacing nlachine; the combination of'a mandrel for supporting a record to beires'urfaced; aifr'ame a carriage mounted on said frame; a front railionfltheporting the 'carri age; acarriagepositioning' determining cam; and a vertically adj ustable Wear shoe mounted'on the'carri'ageto serve "as an'interponentbetvveenthe camand front rail. 5 V

"combination ofa mandrel for supporting a record. to be'resurfaced; carriage;- a-lrnlfe 'settable in said carr age? I and automatic me'ans comprising a pawl ontheframe and a 4a.; 'cooperatmg'ratchet;onthe carriage for adfvancingtheset knife toward-the record for successive finishing outs; said pawl and ratch- [combination of a mandrel for supportinga ria e "l L'fIn' a record resurfacing .ma'chineJthe .o'perate said record-ejector; I

' termined position.-

e In; a record-resurfacingmachine, the ",combinationof armandrel for supporting a recordjto be resurfaced; a frame; .acarriage' mounted a on said frame and movable longitu dinally thereof; a knife settable in said "carriage; and means for advancing the-carriage and theknife set therein step-by-stepapredetermined extent'toWard the record incidental to the movement of-the carriage to starting position. 4 j i v 18. In a record-resurfacing machine, the combination of a mandrel for supporting a recordto be resurfaced; a frame; a carriage mounted on sald-frame and movable long tudinaHyfthereOf; a knife settable in said carriage; and meansoomprising a cam, and a pavvl and'ratchet mechanism for automaticallymoving the cam incidental to movement of thef'carriage' to position for resurfacing 'the record to advance'the carriage and set 1 knife toward'the record for successive finishingcuts.

l9. In combination frame;--a record-i supporting mandrel;- a. carriage movable longitudinallyof the mandrel; an ejector for releasing a'record from the mandrel; and

releasing a record from the mandrel; and

meansonthe carriageadaptedto operate said record-'ejectorwhenthe carriageis'in a pre-' determined longitudinal position-11L; c

ZL'IncombInat Oma frame; a record-sup- "portm'g mandrel; a-cc'arrlage movable longi- 1531 mfl m ing imhin'q fh Itu'dinally'of th'e mandrel; anejector for releasinga record from' the mandrel; means recordvto be resurfaced; a frame; acarrlage' Q i l 111 11 r ge P Operate 7 movable longitudinally of; said frame a fset table 'knife mounted onfsald carriage means 5' for locking said'knife' inset position;means for-advancing the knife toward thef-record fonsuccessive finishing' fcuts; manually'op'ers able means for ejectingtherecord from the mandrel';and means operated as an'incident "ijtof-ejecting"the record for coordinately rejstoring the knife-advanc-ing means and releasingthe knife-locking means; saidfrneans v l lav"of y ij said record-ejector; and means onthe frame I -V "also adapted to operate the record-ejector;

Q'22. 'In]arecorcl=resurfacing machine; the -'c'ombi at ion' f a record-supporting mandrel a tool carriage movable with relation to the mandrel; means on the too carriage for fnieans mounted on the carriage adapted to' amen; only whenithe carriage is in ,prede- 7 "lockingi the 'tool in set-position; a recordejectoryand meansomthe carriage for releasing the tool lock' and: coordinately operatingzthe record-ejcetor.

Signed at Bridgepornhin the county of Fairfield and St ete of Connecticut, this 21st 192 w 1 VICTQR L, FRYKMAN.

. mounted" onsaid fr'ameand movable'longi- :my tudina'lly the'reoffa:settabl wif o T 'on' said *carriagefandijmeans automatically; advancing the carriage'and knife toward -recordfor successivejfinishing cutsincidental 9 m ent' of. thefcfarriage:top'osition for resurfacing the record; said}'Inefans beinglop-

Images