US894956A - Sound reproducer and recorder. - Google Patents

Description

10.894,956, Pmi-mit@ ^1 mi A A.. JUNOD, SOUND REM-ummm AND muomm APPLICATION PXLBD'JULY l. lNfV/ i marmite "ai: L; u 'u INVENTOR.'

A RNEY PATENTED AUG. 4, 1908.

TORN

4 SHEBTS-SHBT 2.

' INVENTOR: de/ J0? BY @d SOUND RSPREEE AND MDN@ "10N ULEB m1111190? WITNEssEs 894,956. PATBNTED AUG. 4, 1908'.`

A. JUNOD. SQUND REPHUDUGERAND RECORDER'.

APPLI TON TLED JULY 5, 1907. h l l 4 SHEETS-SHEET s.

f.. Illas. f 4

A. JUNOD. SOUND REPRDUUER AND RECORDER. ANIMATION FILED mm1] 1907 \VITNESSES Y /X W a" ated.

,45 disagreeable rattling an ANDR JUNOD, Ol" FRUITVALE, CALIFORNIA.

SOUND REPRODUC'ER AND RECRDER.

Specification of Letters Patent.

Patented Aug. 4, 1908.

Application filed July 15, 1907. Serial No. 383,734.

'o'aLL whom it may concern.' y

Be it known that I, ANDR JUNOD, a citizen of Switzerland, residin f at Fruitvale, in l the county of Alameda an( State of Califor- 5 nia, have invent-ed newand useful Improve- 1` 0 4be emfployed in connection with the stylusbar o the gramophone, or kindred instrument, for producin an oscillating anti-friction bearing for sai bar, and in which other undesirable movements are entirely obliter- 'My invention consists of the parts and the constructions and 'arrangements of parts which will be hereinafter described and pointed out in the claims.

Figure 1 is a sectional view on line A-Aof Fig.- 2, which is a plan view of the apparatus. Figs. 3 and 5 are erspective views of. the members of the styllils-bar. Fig. 4 is a side view. Fig. 6 show-s the hook attachment.

Fig. 7 is a section on line B-B of Fig. 2.

Fivs. 8-8

ai'e plan and side view of a modifieil form. Fiff. 9 shows sections on lines C--C and D- Fig. 8. Figs. 10-10 are detail views. Figs. 11-11a show another 80 form; as also do Figs. '12-13-'14 and 15.

Figs. 16-17`-,18 showY the knife edged bearings in a plane parallel with theA stylus-bar. Figs. 19--20--21 4are a plan and two edge views of the bearing and the stylus point clamp'. Figs. 22 to 28, inclusive, are sec-.

tions and details of the same.

It is the object of my invention to provide anV oscillatin anti-frictional bearing for the stylus-bar o? a gramophone, or like instrument, said bearing bemg so contrived as to allow an absolutely free movement of the stylus-bar in unison with the movements of the diaphragm, to which it is attached, and to prevent as far as tpossible any of the vibratory noises caused b a loose action in such instruments;

btitwi `l bernfanifcsttha't my device may he also em iloyed i'ii any connection where a perfeet vil ra" toryor ,oscillating actionV is required, withV the least possible friction.

. As shown in the present invention A and A are two rings between which the vibratory -diaphragm 2 is suitably clamped. The stylus .3.which follows the linesof the recordplate is fixed in one end of the stylus-bar 4,

either by a locking screw or by devices t0 be hereafter described, and the other end of thc bar is fixed to the center of the diaphragm 2, as shown at 4, so that it transmits all of the vibrations and movements caused by the stylus on the record, through the diaphragm and the transmitter in the usual manner.

The stylus-bar 4 is bent into a form plainly shown in Fig. 3, and is fixed to a transverse bar 5, along the centralline of the face of which is formed a V-sliaped ridge 6. 7 is another bar parallel with and o posed to the bai' 5, and this bar 7 inay have ormed lon itudinally within it, a groove 8 of sufficient y wider angle than the V-shaped wedge of the bar 5, so that the latter may rest in the bottom of the V-sliaped groove or channel 8.

and have suicient space on either side to allow it to tilt upon tiis knife ed e without other movement. The bars 5 an 7 may be secured together with the parts in the above position, as shown in Figs. 1, 2, 4 and'S, or separated as in Figs.v 19 to 28. The plane of these meeting edges is parallel to the plane of the diaphragm 2, and to the plane of separation of the rings A' and A. The grooveor channel may be omitted from the bar 7 if desired, and the knife edge of 5 rest upon a plane surface of the part 7.-

Holes are made through the bar 7, as shown at 9, and these holes register with arms 10 which roject from one of the plates, as A, and may e bent at right angles so as to enter the holes 9 and present flat surfaces a ainst which the V-sha ed edges 6 contact `nife edges are formed) on projections or arms l2,

lainly shown in Fig'. 2, these arms projecting from the periphery of the ring Af and in the opposite direction from the Aarms 10. These arms enter holes 14 which are made in the bar 5. These knife edges ,and bearing surfaces being thus opposed to each other, it will be seen that there will be one set of bear- 'ings formed byfythe arms 12, entering the holes 14, and resting in the V-shaped groove 8; and the other aiins tl() in like manner enter the opposed opening in the bar 7, and rest upon knife edges 6.

The 'transverse bars 5 and 7, being bolted or otherwise secured together, as more plainly shown in Fig. 4, and carrying the stylus-bar, it will be seen that the tilting movement of the latter takes place upon these knife ed es,

and that the opposing contacts are of suc a -nature as to substantially eliminate any 'inelines is Well shown in the sectional views,

other movements, and. the 'vibration ti'aiisunified from the stylus to the diaphragn'i, produces a soft and pleasant tono.

Pivotod between the plates 5 and 7 is an arm having at its' outer end an ii-iwar-dly turned point 1G, and lthis point may be turned either into or out of contact with. the periphin'y oi' the rings. When thrown into contiurt with the rings it nuiroases the volume llVhen thrown outcorrespondingly softer, and fitted for vocal i'nusic.

modified so that' in place of the complete-V.- shaped groove, I have shown inclined sui'- i'aces S which forni practically o posing inclined sides, against one of Whiei the V' orl we .lgcslu'ipe .l l edge of "12 contacts, `and against the other a correspondingly shaped edge oi 13. The relative position of these Fig. 9, and the perspective views, I `igs.10

- and 10a; and it will he seen that when the ,bars 5 and 7 aiebolted or secured together, as reviously stated, these .edges or inclines wil beopposed so astopracticallyformo `posite sides of V-shaped grooves upon the p anc.

surfaces, at the bottom of which the wedges 12 l and 13 rest.

In Figs. 11 and 11 I haveshown another means for accomplishing the same result. .In

this case ,the-bar'17 'is stamped out so that in the central portion is formed theV-shaped groove 18,' and toward eac-h end are formed the V-shaped Wed es 19 having their conveXi-. ties in opposite ir'ections, as shown in the transverse section Fig. 11a, in which the V-'shaped wedge 2O is V-shaped groove 1B.

Figs. 12,--13-14 show another modiied. form-in which the stylus-bar is providedwith a transverse trui'inion having central knife.

.edile 25 and a pair of knife edges 26 at its arms 10a.

Itwill be understood that in all the vends; resting in V-slots on the supporting going .forms the general principle is preserved,

' Cri f ofelongated, transverse, anti-frictional bearin s .and that such bearings may include eit er knife edges and corresponding grooves,

plane opposing suifaces,` icing in any case .in the or knife edges and the lines of contact lane of osciilation.

InFigs. 19 to 2S, inclusive, the lugs 10 and.

12 which are carried upon the rin are made enough wider than t e` lugs as,

shown in Figs. 1 to 18, so that thelinner .edges of one pair overlap the outer edges of the opposed pair', and the knife edges offone.and the o posed grooved surfaces of the other air, ave a very short bearing, and serve to` ring .the opposed rings and lugs' to an exact register when they are put together.

shown fitting thev foi-e3.

A and A.

j-"lhc transit-'orso lbar 5 has three tongues, a ccntraloiie 52' and. ytwo at the ends 5l. The exterior tongues have knife edges which rest upon the bearing grooves or surfaces of the lugs 1U, exterior to the lugs 12 of the other with the bnr 1upon one side of the knife edge bearing., anda second thumb screw 29 upon the. oth'ervsid'eof'said bearing, as plainly l shownin `Eig'. so that when the screws are i f In Figs. 8, 9 and 10 I have shown a device v loosened, tllie'cla'finp may tilt upon the knife ,edge and opentoadmit a point or stylus 3, `-and thescrzew 29jsfrves to clam placed. 'Ihehscrew'Q-is free within the hole it when in theinner end' lo fthe clamp, and a spring .30 surroiin d ing, the shank of the screw acts to open thel cl'aii'ipfii lent the screw 29 is loos- In lorder" iinit .and regulate side play ofthe styliisfe-aifying parts, the ends of lthe tongues 5b 3'are made outwardly divergent, as shown 1n fFigs, 19 and 121, and the l .heads of yadjusting:sfrewsA 31 `are brought into as close contact with these able. to limit the side fplay.

Having thus described my invention, what points, as desirsaid bars having ,opposed knife ledgeand coacting Ybearing surfaces, with their-line ofcontactintlie planes of the diaphragm, and said rings having members with opposed bearings disposed gings'- jin line" with'` jrthe firstv named bear- 2.. In ia'souiidre'produoin apparatus, the

.icombination'l with rthe diap agn'i, its sup- Y }iorting"rings andy Aiviectcd.bars'transverse to the stylus bar, to

tylus bar, of parallel conone of .which liars the stylus bar is attached.,

Isaid .liaying co-acting knife edge and opposed y bearing surfaces," 'arms projecting freni the ringsaifd havin f opposed bearings inI linewith the Ii-aine bearings.

In a soundireproducing apparatus, the combination'witli"a diaphragm,- its support-i. ing ringsvand stylus bar,'of parallel connectedharsy 'transverse ,to lthe stylus -.bar and proy.vided with holes, and t'o one ofwhich parallel' '.barstliestylus har is fixed, said bars having knife edgefad vopposed bearing surfaces respe'c'tively, .arms projecting from the rings and bent 'tolfpass through the holes in thepar- ,allel connected bars', said bent arms having knife` ed'g'o and opposed bearing surfaces in .line vwith the bearings of the bars.

y. ,4. Iii a sound-,reproducing apparatus, 'the eQijhbinat-ion with the diaphragm, its sup rings, or be moved orting rings, stylus bar, parallel connected earing bars at right angles to the stylus bar, and arms projecting from the rings, having opposed bearings in line with those of the bars7 of a pivoted arm having an inwardly turned point adapted to contact with the out of Contact therewith. 5. In a sound reproducing apparatus, a diaphragm, supporting rings with projecting lugs bent to forni opposing knife edge and coacting grooved contacts connected bearing bars having openings, the inner edges of one pair of contacts overlapping the outer edges of the opposed pair to automatically register the connected bars.

(i. ln a sound reproducing apparatus, a

diaphragm, parallel connected bars having i knife edge bearings, opposed clamping rings, a stylus bar connected with the diaphragm,

and turnable upon said knife edge bearings,

lugs projecting from the rings, and having ln testimony whereof I have hereunto set my hand in presence of two subscribing Wit- IleSSeS.

ANDR JUNOD.

Witnesses:

S. H. NormsE, FREDERICK E. MAYNARD.

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