US995347A - Sound recording and reproducing machine. - Google Patents

Description

D H HAYwooD `SOUND RECORDING AND REPRODUGING MACHINE, APLIUATION FILED DBO. 24, 1909.

Patented June 13, 1911.

4 msnm-SHEET n.

" 'BY' g E A AToRNEYs- V i WITNESSES:

D; H. HAYWOOD. 'SOUND RECORDING AND NBPNODUGING MACHINE.

APPLDATION FILED 13120.24, 19.09.

Patented June 13, 1911.

4 'summe-snm s.

j |NvENT0R BY w i IATORNEYS l `WITN ESSES v D.v H. HAYWOOD. SOUND RECORDING AND BBPRODUGING MACHINE.

ArrLIoATxonr1LEnDno-24,1909. n 995,341 Patented June 13,1911.

I A wnNEssEs: INVENTUR www ATTORNEY;

UNITED STATES PATENT oFFicE.

DANIEL HOWARD `HAYINOOD, 0F YOEK, N. Y.

Specification of Letters' Patent.

SOUND RECORDING AND REPRODUCING EVILCHINE.

Patented J une 13, `1911.

Application mcd December 24, 1909. Serial No. 534,884.

To all whom "it 11m/y concern:

Be it known that I, Daunen HOWARD HAY- ,y

woon, a citizen .of Vthe United States of America, and a resident of New York, county and State of .New York, have invented certain new and useful 'Improvea ments in Sound Recording and Reproducing Machines, of whichthe `following 1s a speciication, reference being had tothe accompanying drawings, forming a part thereof.

In U. S. Letters Patent No. 948,137 which issued to me on the 1st .day of February,

1910, a sound record is' shown and claimed inwhich the sound groove, independent of its sound producing undulations, advances Virregularly throughout, its length, and my present invention relates to a machine for producing such a record4 and for re ro-l ducing sound from. a record of such c aracter. Sound producing records arecommonly made. by simultaneously rotating the record blank andpreducing a. relative feeding movementbetween the record blank and a record stylus.'l In my present machine I rovide, in addition to these two movements,

or a third movement, namely, a 'relative i .lateral-'movement between `the rotating sound record and the stylus independent ofthe .feeding movement above 'referred to. It4 is,

of course, apparent' that-in the broad aspect of `my invention, the feeding may consist either of alateral movement of the record blank while it is being simultaneousl rotated, the stylus being meanwhile held7 stationary so far as such.feeding movement is concerned,- or a lateral movement of the stylus while the record is relatively staftionary with respect to such lateral movement. Similarl the independent lateral movement may e given either toA the stylus or to the record and that re ardless of to which of these elements the yeedingmove- Vments are imparted.

For the purpose ofthe present specilication, I have described and illustrated a machinevgiin which the feedingmovements are imparted to the record simultaneously with movements of rotation thereof, while I Yhave provided that the -independent movements for causing the irregularity of the sound groove are imparted to the stylus, but it will e understood that the same is intended in no way as a limitation of my invention, but rather as an villustrative of one form of the machine 'embodying my invention. It will also be understood that whileA for cleaness of description I will refer to the vmachine mainly as a machine for producing the sound records, the machine may be simllarly used with a reproducing st lusfor reproducing the sound as will be we l understood by those .skilled in 'this art.

VIn order that my invention may be fullyunderstood, I will now roceed to ldescribe an embodimentthereof, avin reference to the accompanying drawings i ustratig Ythe same, and will then point out .the novelV features in claims.

In the drawings: Figure 1 is a to'p view of a machine constructed in accordance with my invention, certain portions thereof Abein broken away to show other parts beneat them. Fig. 2 is a view in partial transverse section ,and partial side elevation thereof.

Fig. 3 is a view in longitudinal sect-ion through'the record support and meansfo'r imparting rotational and feeding movements thereto. Figpi 'is a detail transverse sectional view through one form of'feed nut employed. Fig'. 5 is adetail transverse sectional view showing a modified form ofthe mechanism for. imparting the irregular movements to the stylus. v Fig. 6 `is a' etailface view of a record which may be produced in -the machine.

Y The machine comprises a drive shaft-10 vmounted insuitable bearings 11, u on the main' frame 12 of the machine, .t e Vsaid shaft being rotated by anyl suitable power element (not shown) sultably connected thereto as by means of a gear wheel 13. The said drive shaft is' arranged'in4 splined connection Withthe 'secondary shaft 14, one portion owhich is screw-threaded as at 15 whereby 4the said shaft constitutes a vfeed, shaft in addition to a shaft for transmitting rotary motion. Rotary motion is trans mitted from 'thei'fsaid shaft by means of miter gear'. wheels 16 and 17, Vthe former being secured fast to the shaft 14 and-the' Ylaft- Ater mounted loosely, upon a stud 18 which'is The 'said'carmounted upon a carriage 19. rlage- 1s mountedgln' Ways 1n thebase plate 12 of the machine, and is'arranged to slide .s

longitudinallyy therein 1n path. parallel with the axes ofthe shats 10 and 14:.

Rotativelyl secured with the miter gear; wheel 17 is a record carrier 20. From ini spection ofA the drawings, itwill readily b understood that rotary movements of th lic shaft 10 are imparted tothe shaft 14 ther6- i through, the mitcr gearsf16 and 17 to the.

'record carrier 20. The threaded portion 15 of the shaft 14 is arranged in engagement with a feed nut 21 whereby as the said shaft 14 is rotated in one direction, e. clockwise, the said shaftwill be gradually drawn to the left as viewed-in Fig. .3, and as the carriage 19 isfretained against relative longitudinal movement between the gear wheel 16 and a collar 43, the said carriage is thereby similarly moved, and with it the record carrier ,20. The screw-threaded portion ,has the proper pitch to give the desired feed so that the record will be simultaneously rota-ted and fed laterally in the operation of the ma- 15chine. The feed. nut 21' is convenien'tl formed in two portions, 22-23 (see Fig. 4l whichl are carried b arms adapted to be thrown in .opposite irections by a suitably 'operating member 24, whereby the shaft may be released at the end of a feeding ,operation Ato permit the carriage 19 tobe quickly returned to its initial osition in which it is shown in Fig.- 3 o the drawings. The record vcarrier 20 forms a support for a record blank'25, anda stylus 26 carried by |a sound box 27 which is in turn carried by a vtone arm 28,` is arranged for engagement ,l with the'sa'id record. The tone arm 28 is arranged to swing horizontally about a ver- 30 tical axisso that 1t may have a lateral movement with respect to the record carrier. In.

vthepresent` inst-ance, the said arm 28 is provided with a vertical shaft suitably mounted in a 'bearing 30 formed as a part of the frame of the machine', ball-bearings'l being ro'- vided for the-purpose of reducing the riction between the .supporting means 'and the said-arm so that the said arm will turn freely and witha minimum of eort. At its 40 lower end the said shaft 29 is provided with an arm 32 by which it may be operated. The means here shown for operating the ,same comprises a cam 33 of the type comfmonly known as an eccentric, mounted upon i'the shaft 10, an eccentric strap BAL-engaged thereby and an eccentricrod fconnected withthe said strap and having `a ball and socket connection 36 with the said arm. 'A rotational movement of the shaft 10 will V produce an oscillating movement ofthe arm 32 through the eccentric vmechanism just described, wliich oscillating movement will be `imparted to the* tone arm 28, the same resultinginv a 'lateral' movement of reciprocation of the stylus 26 with respect to the record carrier. As this movement i's produced simultaneously with the rotation of the record carrier and simultaneously with'v the feeding movement thereof, and a com- 50 plete reciprocation synchroniz'eswith a complete rotation of the record carrier, it will follow that'the stylus will'be caused .to describe a spiral upon thev record blankwhich is eccentric' to theaxis of'rotation'fthereoand the groove resulting 'therefrom will in its general direction, advance' and recede transiersely as the recordV is revolved.

Other forms of irregular groove may bc produced. by varying the movements imparted to the tone arm, and in Fig. 5 I have 70 shown a cam or eccentric 37 carried by a. shaft 38 connected by gearing 39-40 with the shaft 10, the gearmg having such'laratio that the shaft 38 will. revolve'twice'-to one revolution of the shaft 10. Instead of producing a regular spiral vwhich is eccentric to the center of rotation of the record carrier as in the formabovedescribed, such an arrangement Will produce a form of groove which might be termed an oblong spiral, this, of course, being for the reason thatthe stylus will have two reci rocating' or oscil lating movements for eac revolution of the record carrier instead of one as in the first example shown. In Fig. 6, I haveshown somewhat conventionally such a record. By using diieren't forms or relationship of gearing, or cams or eccentrics of different character any desired form ofgroove may be produced as will befwell understood. In case the record thusproduced is to be em'ployed later in a ositive feed machine, it will be necessary tliat the record be placed in the same relation inthe 4reproducing machine as' it occupied in the record machine, and for this purpose, I may employ an eccentric pro- 1 .jection 41 upon the record table for coenga'gement with a corresponding recess upon the under side of the record. On the contrary, if a record vof this kind be used upon a Berliner type of machine inwhich no positive feed is employed, such a positioning `element and recess will notl be necessary for this purpose, though it maybe em loyed Y if desired inthe'y recording machine En' the 105 purpose of holding the record blank steady while the record is being produced'. f What I claim is y 1. In a machine of thecharacter dei-- scribed, the combination with two elements, one comprising a record f support and the, otherl a stylus carrier, 'of means for impart.'-I

.ing relative rotationalmovements and relative lateral movements between the two saidv elements, and means for also imparting, lateral movements of reciprocation' to one of the saidA elements with .respect to the other. 52,. In` a machine of the character described,`the combination with two elements, one constituting a record supportland the other a stylus carrier, of means for impart.-l ing feeding Hmovements to oneof the said elements with respect to theother, means for vsimultaneously rotating the said record'support, and means for simultaneously impart- '125 lng movements of reci rocation to one of f the said elements in t e direction of said feeding movements. In ha. machine of the character described'the combination with arecord sup- 130 porting element, a stylus cerryin element, scribed, the Combination with e record sup- 'und mens for rotating thc recom curryin port,--a cergiogc upon which the same is ro- 60 element, of means for imparting Intera tetnbijf mounted, u, rotetabiefeed screw oon feeding movements to one of the said'elenectedwith the Said cer-ringe, e drive elu'ft. ments with respect to the other and for with which theosaid feed screw is connected simultaneously imparting lateral movements to rotate, and means connecting the record of reciprocation to the st his carrier in the supportin' rotative engagement with the 05 directionof the said fee ing movements. said drive shaft, of :i stylus carrier, and

4, In a, machineofr the character den means in rotative engagement with the nid scribed, the combination with u record sup drive shaft for importing lateral movements port, 'means for rotating the seme, land of reciproeetion to the saidYstylus carrier. means for simultaneously imparting lateral '10.111 e machine of the character de 70 feeding movements thereto, of a stylus ceru IScribed, the combination 'with record sup rier, andmeuns for impartiti lateral moveport, e carriage upon which the Same ie ro- 16 l'rientsof reciprocetion to t e said stylus:` tatebly mounted, a. stationnryframe having carrier. e longitu-dinei guidewev in which the me. 4 5. In u, machine of 'the character deringe is arranged to slide, a feed shaft joor-- 7h scribed, the combination with a. record sup nailed in the seid carriageand held against i porting 'elementi a stylus 'earryin element, relative' iongitudinai movement with reepect 20 and means'for rotating the recom carrying thereto, the said feed -shcft having a. element, of means for imparting lateral threaded portion, a ret-,1ativelyy stetioxmry feeding movements to one of the seid elenut 4for engagement with Seid threaded or 8h ments with respect to the other,- and a cam tion, and gearing connecting the said i eed for simultaneously imparting lateral moresila-.ft with the said record' Support, f n merits ofreciyrocation to the stylus carrier styine carrier, end 'n Acem in rotnti. en.'

in the direction' ofthe said feeding movegagement. with the seid feed shaft, fim

ments.` o V i petting intera-i. movements of recproeation 8b 6. In'xn machine .of the character de to the sind stylen carrier.

'Scr1be`d, the combination with two elements, ll. .In n machine of the character Re a0 one constituting, arecord support and the 'scrihed the combination with two elements, other a st lus carrier, of means for rotating one constituting a. record support and the therecor sup `rt, and means including a. other wstyinsscerrier, ofmeans for impart 9U 4feed screw an a com fo'r simultaneously ing feeding' movements to one of the s aid imparting lateral feeding movements to one elements with respect tothe other, means of the saidjelements Withrespect to the other 'for simultaneously rotating the said record and movements ofy reciprocation to' one of support, and en eccentric for simultaneously the said elements with res ect to the other, importing movements of reciprocetion to 96 in the direction of' the said feeding move# one o the seid elementsj'in the direction of ments. 4 Y the seid feeding movements, the said ec 40 7. lIn -a machine -of the character de-l centric being connected to rotate with the scribedthe 'combination With n. record sup snidirecord sup ort but at a rate of spoed port `end a stylus carrier, of means for rowhich ie e. me tipi@ of the rete of speed. .i0 tating the record support, and means for thereof. Y feeding thestylus across the fece of a record l2. In a .machine of the character de 4b supported by the saidrecord-support, and scribed, the combination with e'recor'd sup for alternztely advancing und receding it port, means for rotating the seme, and

during Aits Vfeeding* movement.` l means for simuiteneouely imparting lateral 10Cv 8. In a` machine of the character de feeding movements thereto,`of a stylus car- B crbedthecombination 'Withe record cer" rier,' and nie-ene timed in relation to the lier, means, for rotating it! and means for movements of rotation of the record supr eimultaneously imparting lateral feeding', port., for impartinge plurality of complete movements thereto, of a tone arm pivoted lateral movements "of reciprocationV to the 110' about an a'xiset right angles to the fece of stylus carrier for each' complete rotation of `the record carrier, asound box carried therethe record support.A y 66 by,` and means for oscillating the tone erm `D.` HOWARD HAY'WO'OD.

about its pivotal-support during the feeding Witncssesr movements of the record carrier. J. C. 4ItAra'rMmrm 9. In o machine' of the` character de- 'LYMAN S. ANDREWS, Jr.

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