US1068877A - Talking-machine and the like. - Google Patents

Description

A. FILSSr TALKING MACHINE AND THE LIKE.

APPLICATION rum) APB.25. 1912v 1,068,877, Patented July 29, 1913.

20612716 6 5 es w zivcfzz 07" UNITED STATES PAr NTo-FFIoE,

AUGUST FILSS, or ERFURT, GERMANY.

Specification of Letters Patent.

' TALKING-Maintains AND THE LIKE;

Patented Ju 1 29,.1 913.

Applicationfiled April 25,1912, Serial No. 693,171.

T all whom it may concern:

Be it known that I, AUGUST Fuss, a. subject of the German Emperor, residing at Erfurt, Kingdom of Prussia, Germany, have invented certain new and useful Improvements in Talking-Machines and the Like, of

which the following is a specification.

.This invention has reference to\talking machines, and'it compreh'ends, briefly, certain hereinafter-described improvements in' or relating to-the mounting of the soundbox and its carrier, whereby the defects ordinarily present in the parts just specified, as

now constructed and arranged are, to all intents and purposes, completely obviated.

The known sound-arms, which have re.

cently been used for talking machines, are

adjustable, and have the drawback that the parts movable relatively to each other wear out very quickly, which results in. rattl ng;

' whizzing and other unpleasant noises; more-.

over, they are further objectionable in that they occasion anunintentional weakening of the sound-Waves and, also, interfere with the same. The chief cause of'these dra. w backs is that the goose-neck or other bend, which carries the sound-box, is rotatably mounted in a cylindrical sleeve, so that it is necessary, in changing the disks and needles and, generally, when stopping the machine, to turn the bend completely over until either the sound-b x or the'freeendwof the bend itself rests upon the sound-arm.

This movement of thesound-b0x causes its bearing to become afi'ected 1n the manner above referred to, in consequence whereof,

fa loosening is produced,- owing to wear,

which causes the aforesaid noises and, further, weakens the intensity of the soundwaves. y

The aforementioned objeetionable'fea tures are entirely, or substantially, avoided by the present invention, which proposes an effective mounting for the sound-box for the purpose Bf firmly connecting it to the sound- :arm, This mounting is in the natureof a 'ball-and-socket joint, consisting, chiefly, of;

a ring of rubber or othersuitable material'of a like character, and a hollow ball. The first-named element is. mounted on' the end,

of th'e sound;arm and receives the mpanion element withinits central opening, the latter element'being fixed to the bend and being yieldingly pressedor forced into the aforesaid opening through the agency of a spring-connection between the two ele--,

ments, so as to effect the requisite tight joint. I The ringer socketmay be encircled by a metal clamp on which latter are pivotally arran ed two straps havingfllongitudinal "slots or the reception of the ends of the pin. or pins on the ball element. The bend will thenbe movable in two directions, (upward and downward,) and will be held in any de sired position, owing both to the use of thesprings and to the friction of the metal ball against; the wall of its rubber socket; The

behd, however, may be easily detached; The subject matter of this invention has, therefore theimportant advantage that the necesf, 70. sity of turning the sound-boxcompletely back upon the sound-arm for-the purpose of stop-ping the machine and changing the disks and needles, is obviated, as it is suiticicnt merely, to turn the bend a slight 76 tance upward, whereupon it will beheld automatically in position .in" the manner above set forth Moreover, there is produe-ed, automatically, a tight jointbetween,

the bend and sound-arm, which is improved, by'its two component parts or elements be-' ing drawn together by the springs,"whereb.y'

additional noises and weakening of the sound waves are 'obviatedand rendered im'-,.

possible.

' An'embodimentof theinvention ,is .i llus trated "in the accompanyingdrawing, of which: -f

Figures land 2 are, respectively, a part-;. sectional bottom plan view, and a side elevation' of the .improvedsound arm and bend,

the latter being shownin the position which. i it. assumes when the sound-boxis inoperation; and'F1g 3 is a bottom plan view,

preferably made of rubber, orother suitable 'elastic material that will produce automati- 7 callv, a tight, and, at the same time, yielding joint. [Between the ring a and the ball 0 of the bend d are providedsprings f, 1 which tend to force said ball into the adjacent end of the central opening or bo re of .ringa, and 'inthat way a thoroughly effective joint insured between the two relativ'el'y movabl-e elements, any wear of the tions, and 'as shown in Fig. 3, it is Suflicienr to turn the saidbend through. an arcfof about 90, or an even smaller are, in order to bring the sound-box and its needleinto a at once be changed. "Unlike theconstrucf applied to the-,improved construction of "the" present invent1on,;need notbesw'ung eornjeeting surface irregularity-in the disk, for

being heldin elevated positiomout of con ticity, will expand as soon as the needle .passing over :any-irregulai'ity on the disk to hold it upon t'henfriilg en-and,

material being practically precluded. The. bend d is, therefore, rotatable in two direes position in which thelatterand the disk can tions now in general use, a sound-box,'whenpletely back uponthe'sound-ar-m," in order' tobeisuppo'rted in inoperative position, but merely through 'a comparatively-small are, as above stated,'sinc'e it.will' beheld 'in posi the slightly yielding;- wall '-of its .socket. However, this frictional'engagement will not act to hold the sound-box in raised'and, consequently, inoperative position after the needle haspa ssed over and beyond any pro the reason that when the sound-box rises iu-j eidental to the passage of the needlerover.

such. irregularity the turning movement of the ball in its socket and resultant frictional engagement of the ball and socket surfaces .will have thc effect of slightly compressing the socket, which latter,--ow-ing, to-its elasleavesthe irregularity and thus depress the, so'u'nd-box' and" needle .to initial position. Accordingly, there is no danger of then'eedle tact with the wall of thesound-gioove, after surface, which would otherwise-be a most serious defect, by reason of the tendency of the disks to warp and, generally, the 'difliculty of obtaining disks withperfectly true In the ;const'ruction illustrated,

which may be. tightened, j-like thefofidinarv clamping collar, by meansofi screw-k, bot

prove the joint between said ringand end otthe sound-arm b. At their'front x; ends, these springs are firmly connected to i the said ball.

. to j creased as required. tion' owing t thearra ngement' of theis'prings'. v

and to the. .friet-ion of the metal ballagainstthe ball a by pins or bolts 1', or, if"desired,- as is the case .in' the construction illustrat ecl ea single pin may be passed through Straps'k, bent in a suitable manner; are preferably employed, for preventing the springs from 1 contacting with the ring'or-fsocket by forming supports for transversely of the rings (rand 9., and extend across'thesaine, ,.as shown They are formedat. their front 'en'ds Withlongitudinal said springs; These straps are -arranged so slots m -through'whieh'. the ends of pin I claim:

"1."I he combination of a talking machine sound-arm;. a, socket of yie'lding material,

iitted on the front end'thereofj a movable jprojecg' and they may, ifvdesired, be pro -"f sound-boxcarrier provided at its rear end Q, The combination of a'talking machine sound-arm; a rubber ring fitted on the with a hollow ball movably lit-ted in the; t

front end thereof; a movable s0und-box car-h rier providedat its rear end with a hollow.

ball movably fitted init-he outer end of said ring and'having' a pin; and a pair Of dlth netrically opposite springs connected at their rear ends with said ring and at their Ifron'tends with the ends of said 'pin for holding said carrier inadjusted position.

'3."-The combination of a: talking machine; soundarm; a rubber socket "fitted-0n the .front' end thereof a movable sound-boxcarrying bend providedat its rear end with hollow ball movably fitted in said socket; and resilient connections between said socket Iand said ball for holding said bend in ad-f j'usted position.

' Intest-imonywhereof -I have hereuntov my hand in'presence oftwo subsc'ribing wit- ERNST Eiiiuumnu'r ALFRED HOFFMANN.

, AUGUST-f miss-f i

Images