US1654713A - Attachment to sound-reproducing machines for record cleaning - Google Patents

Description

Jan. 3, 1928.

T. WATSON ATTACHMENT TO SOUND REPRODUCING MACHINES FOR RECORD CLEANING 4 Filed Jan. 26. 1926 THsooom: WATSD N \NVENTOR;

Auomey.

Patented Jan. 3, 1928..

PATENT-r cl rics...

mnnononn wn'rson or nasm- MELBOURNE, aosrnnnm,-nssreiwon 'I'O'aWATgQjgm 3 nounnnnosmaanm a CORPORATION onwlcroarm aimnenmmir rrmsoonn-REBBQBUQINQ mncnmns FOR .nnconnacnnnmec Application, fiIediIanHary-Q IWQ-SfliaL-F ,794,-and1n;. AustraIiaJe bruary-{7..1925Q- I i I My invention relatesto an attachmentfor use -...w1t-h sound reproducing ,machmes, and having. means, .to bear. upon, the record .sur

face to-{olean the. groovesashthe record ro; 5 tates, preventing fine particles otlo'ose. matr. terbeing left Iinthe .g f9oves, theneedle. then not having. the. grinding damagingefiect that;

it .would haveifthe igrooves were not cleaned,

especially. when .the. {needle ,poin't .becomes 10 wornaHBrushes are now sometimes attached to'sonnd reproducing. means forthe afore-.

said purpose,butthey are: accompanied by disadvantage s ,.which invention avoids; In the, accbmpanyingdrawin'gs, Figurepl shows part of a record .adapted tofrotate in the direction indicated by an, arrow, and ads japentfl'portionsqof -a talking machineare shown, including a ,sound box'fitted with a brush, and. a needle. Thebrush cleans. the grooyes {before-the latt'erQreach the needle,

Figure. .2 ,is. a perspective. view of] my. at

tachmnt,a partof a nut-being. broken, aw y touexhibit a screw thread julsta 1e jaw of my attachment,

Figure e is an e ev tionof-the brush front,

and ot. ,the. attachment. byv which the. brush is carried..- :0 Figure 5 arm ,Fignre 6 is; I struction .taken on lines 676 ofhigure 5.

of a fragment of a record, and shows the po r sitionsiof thei needle pointand f my b us relatively to each other at the beginning of.

the record groove and at the endthereof, the effectiveness of; athez'brllsll being maintained throughout. a I

Brush means in this specificationa frictional sweeping element for cleaning the grooved record.

sound boxes of various forms. This has advantages compared with the goose-neck' attachment, but my attachment is also adjustable relatively to the record.

To form my attachment, a frame 1 is made of bent metal or wire by producing a loop 2 near one end to form a fixed jaw, op-

which. thi-ls'operates togthe best advantage;

,Figslre =3 is aperspectlve View of ad-;

shows the attachment modified,,, the. brush; bei 11g on an adjustable resilient;

sectional; end view of thecon- Figure 7 shows W5 plan My attachment can be applied to rims of pQSite to an adjustable jaw .whiohlcanibe Set by rotating ainut 4 thethreadof which.

terminals of theframea, Thisadjustablejaw.

3 is not .rotatable,,but is.slidable,. an.d.may

have slight,- looseness ,or ,play. It has. a hole; 3.,thro,ugh which extendsfa correspondingly shapedpart .of. the said terminaLl' This aw has a lug 3 extending longitudinally of:

he"frame, as. in Figures Qua-11d, 5,. and )as part3". of the jaw isjchannelledat, 3jpart of the .limb latitstherein,vv

l isl a f am -bend fleadingat hef ame; terminal 1f, zwhic]n:.=v is .shown as. a s raight limb carrying ,means of attaching an, adjust? able. clip 5 which has, a recessas a housing... 5 for ..t he,.head-6. of a:.,br ush 5.. I employbrusheshaying heads. which slide,- into. or out;

Theclip 5 hasfreespringy flanges fi'tex tending towards one anothenatrthein lower edges, but by i n.sert ion of y the brush, ahead these flanges. are pressed slightly. apart;,.a11d,.

provide the necessary firm. gr1p To mount. i

the clip slidably, relatively totermi-HaI-Jimbw 1, it is.connected.totaielirule, 5 ..which ,is

slidable' along limb. 1. The clip and .ferrnle are e1ther ,close,together; 1(asa in Figur s 1,32, and 4) or.a're spaced apartfiasin.Figures .5

and 6,,in which 5.,is a spring arm. The latf rarni enables. brush 6 t ibear r si iently-9n.

herecord, andt automatically. comp nsate; ford iference .of heightduel-to the f t, 1at:a

the needles. ,-used vary mater ially in length...

Theneiore. .this power, of, compensation is of.

value... v

A,-is.a needle, B .the1stylusbar, .G the so nd box, and s the. firs g o ve-of. the record tocbe-pl ayedd In ,Figure .7, A is the needle loo (see Figure 7) than outwardly.

oblique, asthe user desires. The brush is wide and is made to bear on the record surface, at, and both inward and outward of, Whatever groove of the record the needle engages, so that the groove meeting the needle; will always be clean. The brush at first extends a greater distance inwardly and transversely of the grooves of the rec ords.-' j

2. In a record cleaning'attachment for phonograph reproducers, a brush carrylng frame having a fixed jaw and an adjustable j aW loosely carried by the fixed aw and projectingto embrace over the peripheral wall and against opposite faces of the reproducer, said adjustable jaw having its engaging surface concave, the edges thereof'operating to grip the surface of the reproducer,

and a brush mounted on theframe and adjustable thereon in a direction parallel to the axis of the reproducer and aboutethe frame as a center;

3. In a clamping arrangement for a record' cleaning device on phonograph reproducers, a fixed jaw having a threaded projection disposed parallel to the axis of the reproducer, an adjustable clamping jaw operating over said projection, andmeans operating over the threaded projection and against the adjustable clamping jaw.

4. Ina recordcleaning attachment for phonograph reproducers, a brush carrying frame comprisinga wire bent upon itself to form a Ushaped member, one arm thereof having an offset portion to form a jaw midway of its length operating to'engage againstthe back face of the reproducer, the

end of the wire beyond the jaw being partiallythreaded and disposed parallel to the 7 axis of the reproducer, a second jaw adjust- Each able over the threaded end portion of the wire and against the front face of the reproducer, and a, nut operating over the threaded end and'against the secondjaw.

5. A brush carrying frame, as claimed in claim 4,-in which the partially, threaded end of the wire is flattened between th-e'threads and the oifset portion, and the second jaw comprises an L-shaped member having one armconcave-to'bring the edges against the surface of the reproduc-er along radiating lines of the latter and the other arm U- shaped to embrace the flattened section of wire and prevent turning of the jaw. 1

6. In a record cleaning attachmentfor' phonograph reproducers, a brush carrying frame having one end clamped to the re producer and the other end projecting parallel to the axis .of the reproducer and radiallyof the record, and a brush adjustable over said last mentioned frame'end from a point in the path of the r-eproducerneedle record to'wardsthe center thereof. v

7. A record cleaner attachment to be and then transversely of the grooves of'the clamped to phonograph reproducers,: com-V prising a wire frame threaded'at one end and projecting in a straight line a distance substantially great-er than the intended clamping capacity of the attachmentfthe wire being then turned upon itself to form" a loop to engage the rear face of the repro ducer, the wire projecting straight again from the loop in a line substantially"parallel with the axis ofithe reproducer and'th en curving back on itself in a straight portion parallel to theother-straight portion, a'j'a'w adjustable over the threaded end'ofythe wire and relative to theloop to engagethe opposite side of thereproducer', a screwladjustableover the threaded end of the 'wire.

and against the jaw, a brush. holder Iarranged on' the other straight. end; of the wire and comprisinganinverted Ushaped holder having a bracket movable about the wire and provided with aset screw adapted to engage the wlre, and a brush having a shaped holder.

top portionfslidably engagedin 'theQ-U;v

In witness whereof Lhave hereunto set my hand.' i j THEODORE *WATSQN.

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