US1225847A - Phonograph-record cleaner and lubricator. - Google Patents

Description

C. PALMER..

PHONOGRAPH RECORD CLEANER AND LUBRICA'TOR.

APPLICATION FILED MAY e, 1915.

1,225,847. v Patented Muy15,1917.

UNITED STATES PATENT OFFICE.

CHARLES rama'zsa, or BUFFALO, new YORK.

'PHONOGRAPH-RECORD CIiEANER AND LUBBICATOB.

The object of the invention is to provide a wiping and oiling device for sound producing and receiving n achines which will propel-l lubricate and also remove the grit from. t 'e portion of the playing record which is to be engaged an instant later by the vibrating or sound needle of the machine. 7

A further object is to provide an automatically operating device which will per: mit .ofreadily removing or replacing a playing record" on the machine, which will be strong and durable, which may be readily cleaned and oiled and which may be produced atlow cost.-

:In the accompanying drawings:

Figure 1 is a side elevation of a fragmentary sectional elevation of a phonograph equippedv with my invention. Fig.

. 2 is a front elevation of the same.

Similar characters of reference indicate.

corresponding parts in both views.

1 represents a horizontally rotatable turn table upon the upper side of which a diskshaped phonograph record 2 is adapted to be removably supported, said table and disk to be turned together by any suitable operating means and the surface of the. record being-provided with the usual (one produc- .ing grooves, lines or indentations.-

Above the turn table is arranged. the taperingl .ton'e tube or hollow arm 2-) such as is customarily employed lll phonographs and which. is pivotally. mounted on the stationary frame, not shown, of the machine, so as to swing in a horizontal plane.

livotally connected to the forward end of said tone arm, so as to swing in a vertical plane, is a goosenerk or sound box tube 5.

which is capable of rising and falling l'rcely relative. -.to said tone-arm. Secured to the forward end of said gooseneck is a sound box 1 of the usual and well .known form and on one side of-this boxis mounted a diapl'iragm Specification of Letters Patent.

6.- Pivoted on the lower part of said sound box is a vibrating lever 7 which is'operatively associated at its upper end with said diaphragm.

Detachably secured to the lower part of said lever 7 is a tracing needle 8 whose lower pointed end is adapted to engage with the sound grooves that are arranged spirally in the upper surface of the phonograph record 2. As the tone arm 3 is gradually carried across over the upper side of said phonograph record, the tracing needle engages with the sound groovesof the record. 'Ilhe foregoing parts may all be of usual and well known construction and my improveerably constructed as 'follows Mounted on the lower rear portion of the sound box is a vertically depending lug '9 which is preferably arrangedlongitudinally in line with the needle and which is rovided with an external screw thread at its lower end. vMounted upon said lug is a guide sleeve 10 provided on the-upper part of its bore with an internal screw thread engaging with said thread of the lug 9. The lower end of said sleeve is provided with a horizontal head 11 having a vertical guide opening 12. Moving loosely up and down in said opening is the stem 13 of a plunger which is provided at its upper end with a head 14:. The plunger is yieldingly forced downwardly by a vertical compression spring 15 interposed between the upper side of the head 14 and the lower face of the depending lug 8. Onto the lower end of the plungerstem 13 is screwed a supporting shoe 16 whose lower surface is provided with a pad or "wiper 17 of felt or other soft material 'Patented May 15, 1917 Application filed May 6, I916. Serial. No. 95,899.

which in the operative position of the sound As the phonogruph'playing record rotatesv with its turn table, the felt wiper 17 will brush oil the grit and dust from the record in advance of the needle. This pad is preferably soaked with a suitable lubricating oil or'substamw. so as tgplubricate the grooved surface of the record as the pad rests'upon the latter while in ,motion. By this means the record is not only cleaned but the wear on the same is reduced to a minimum and the obiectionablenoisecaused by the friction of the constant rubbing of the needle against the movingfaee .of the record inateriallylessened. It will. be'noted that the compression spring 15 relieves the needle of a large part the dead Wei ht of the sound box 4 so that the wear of t e needle on the record is still more reduced. Such a cleaning and lubricating device is not confined, of course, to a disk phonograph or to any one type of disk phonographs but may be 'used on any .sound apparatus where a needle moves in the sound groove of an impression record, theone' relatively to the other. Furthermore, the cleaner and lubricator may be otherwise supported although in the preferred construction shown, the cleaning and oiling of the felt pad is most convenient by reason of the fact that it may be readily thrown back with the sound box so as to present the lower rubbingsurface of the pad or wiper upwardly.

By loosely fitting the plunger or guide rod in theguide .sleeve and interposing a 5 ring between the plunger and sound box the pad can swivel or tilt and change its position for adapting the same to the surface of records which may vary in thickness and the pad can also hear yieldin ly a ainlt the record and accommodate itse f to e length of the needle resting on the record.

I'clairn as my invention:

I A phonographcomprising a needle adapted to engage a record, a sound box on which said needle is mounted. and a cleaning device mounted on said box and comprising av supporting lug depending from the box and provided with a .screw thread, a guide slee"e having a thread at its ufpperend which engages with the thread 0 said lug provided with a guide opening, a plunger having a guide rod arranged in said opening and a head at its-upper end arranged in said sleeve, :1 spring arranged in said sleeve between said head and said lug, and a shoe having a screw connection with the lower end of said rod and provided on its underside 'with a feltpad adapted to rest on said record.

CHARLES PALMER.

and having a head at its lower end which is

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