US1418101A - Phonograph attachment - Google Patents

Description

P. SIMUN.

PHONOGRAPH ATTACHMENT. APPLICATION FILED .IULY'I6. I9I9.

Patented May 30, 1922.

Pefer 457mm UNITED STATES PATENT OFFICE.v

PETER SIMON, 0F ELIZABETH, NEW JERSEY.

PHONOGRAPH ATTACHMENT.

Specification of Letters Patent.

Patented May 30, 1922.

To all whom t may concern Be it known that I, PETER SIMON, a citizen of Austria, .residing at 547 So. Park St.,

vide means whereby the sound box and tone.

arm of a phonograph may be raised and re turned to their initial position upon the termination of a record of the plate type.

A further object is to provide means whereby the sound box may be thus moved irrespective of the inner diameter of record grooves, thus permitting records of different sizes and capacity to be operated in a like manner.

A still further object is to provide a brake applied to the record table at the termination ofthe record, the same operating to stop its rotation.

These and other like objects are attained by the novel construction and combination of parts hereinafter described and shown in the accompanying drawings, forming a material part of this disclosure, and in which- Figure 1 is a fragmentary side elevational view showing a conventional type ot phono* graph and indicating the application of the device, the parts being shown in an operative position.

Figure 2 is a similar view of the same, showing the sound box in a raised position.

Figure 3 is a 'fragmentary plan view showing the device and soundbox in operative engagement with the record plate, and

Figure 4 is a perspective view of the braking device.

Referring to the drawings in detail, the numeral 10 indicates the platform or cover of a phonograph apparatus, on which is rotatably mounted the record carrying plate 11, upon which the record 12 is disposed, the saine being actuated by any of the mechanical means usually employed.

Rearward of the table 11 is secured a flange 13, formed with a sleeve 14 in which is rotatably contained the downwardly extending, angular end of the tone arm 15, this tone arm being of the usual conical type and arranged so that its longitudinal axis is oli'- set laterally from its vertical axis.

Engaged with the front, angularly turned end ot' the tone arm 15, is a sound box 16 carrying the needle 17 whichmakes contact with the record grooves, all of the several foregoing parts being substantially of the usual type of construction.

Clamped to encircle the body of the tone arm 15 are a pair of bands 18 and 19, the former being at the rear and carried by it, so to extend laterally rearward, is a rigid guide arm 20, containing an opening or passage 21, the purpose of which will be further on described.

Formed with the front band 19is a downwardly extending lug 22 in which, pivoted upon the screw 23, is a lever, the front end 24 of which is bent diagonally to extend below the tone arm 15, and rotatably mounted upon the extremity is a rubber covered roller 25, adapted to make contact with the surface of the record plate 12 tangentially of its grooves.

The end 26 of the lever, extending oppositely from the axis 23, is turned diagonally upward as at 27, merging into a horizontal portion 28, bent into a right angled arm 29, extending downward through the opening 21, and attached to its extending end is a flat detent spring 30 adapted normally to engage below the extreme end of the guide 2O beyond the opening 21.

Formed at the joint between the diagonal portion 27 and straight portion 28 is a recess 31, into which extends the free end 32 ot a flat spring 33 rigidly engaged with lugs 34 extending laterally out from the band 19. The effect of the spring 33 is to raise the rear oi' the lever, tulcrumed on the screw 23 and depress the roller 25 so as to make contact with the upper surface of the record plate.

This is prevented however by engagement with the detent spring 30, and the end of the guide arm 20, which normally holds the roller in a raised position and allows the needle 17 to make contact with the plate.

Disengagement of the detent spring 30 is effected in the following manner: A horizontal arm 35 is formed with a vertical bar 3G, extending up from a horizontal slide 37, mounted below a guide 38, fixed upon the cabinet top 10, adjacent to the tone arm base 14.

Engaged with the inner end of the slide 37, is one end of a connecting rod 39, the front end being pivotally connected with the short arm 4() of a bell-crank lever pivoted on the pin 41, below the plate support 1l, while the long arm 42 of the bell-crank lever is formed into an index linger at the extreme outer end, extending beyond the periphery of the table, as best shown in Figure 3.

The index finger acts as an indicator in conjunction with a graduated arcuate index plate 43, set closely adjacent to the periphery of the record plate table, the purpose of the index plate 43 being to permit setting the arm 42 to agree with the varying internal diameters ot various record plates, so that through the lever connections, the arm 35 may be brought earlier or later to engage with the spring detent 30, which obviously upon being pressed inward, permits the arm 29 to rise and the roller 25 to be depressed, raising the sound box and needle from the record.

Due to the tangential position of the roller 25, when in contact with the record plate it rapidly carries the sound box outward toward the periphery of the record, prior to which the needle has been raised so as to prevent scratching and multilating the record.

When the roller 25 reaches its outer limit, it is caused4 to press upon a raised, areuately faced plate 44 mounted upon a rod 45, engaged in a guide bracket 46 fixed upon the cabinet top and having a sleeve 46V on its front edge through which the rod 45 passes, adapted to rotate therein, while secured to the other end of the rod 45 is a brake pad 47 in a suitable guide 47 adapted to be brought into contact with the periphery of the record plate support 11. Upon the depression of plate 44 by the roller 25 which is normally kept in elevated position by any suitable well known means, the rod 45 will be turned andthe pad 47 at the opposite end of rod 45 will engage vthe periphery of the record plate support, thereby causing it to cease rotating.

From the foregoing it will be seen that a novel and practical device has been disclosed whereby, upon the termination ot' the playing of a record, the needle, sound box'and tone arm are raised and moved outwardly to the periphery of the plate and that simultaneously a brake is brought to bear against the edge of the record table preventing it from further movement.

It willV also be Obvious that records of.

varying diameters, both internal and external, may be operated by the apparatus.

Having thus described my invention what I claim as new and. desire to secure by Letters Patent, is-- l. A means for automatically returning the sound box and stylus of phonographs to inactive position, comprising a rubber roller, an arm secured to the tune arm of the phonograph carrying said roller, a guide provided with an opening and secured to said tune arm, a 'Hat detent spring adapted to normally engage below the extreme end ot said guide beyond the opening therein to hold one end oi: said arm in its lowered position and to raise its other end carrying said roller, and an adjustable bar adapted to engage said spring at the end otl a record, ior allowing it to move upwardly through the opening of said guide to lower said roller into engagement with the record plate at an angle thereto for returning the soundl box and stylus into inactive position.

2. A means for automatically returning the sound box and stylus of phonographs to inactive position at the end of a record plate, comprising' a roller, an angular arm secured to the tune arm of the phonograph carrying said roller at one oi' its ends, a guide pro vided with an opening secured to said tune arm, a flat detent spring adapted to normally engage below the extreme end of said guide beyond the opening therein to hold one end ot said arm in its lowered position and its end carrying a roller normally in its elevated position, a rod, a bell crank lever to the Short arm of which said rod is connected, the long arm of said bell cra-nk lever being formed into an index finger, a horizontal slide secured to the free end of said rod, a

vertical bar extending from said slide, a horizontal arm on said bar adapted to engage said spring at the end of a record for allowing an upward movement of one endT of said arm through said guide to lower said roller into angular engagement with the record plate tangentially to the groove thereof for swinging the stylus into inactive position at the end ot the play.

ln testimony whereof have aiiixed mv signature.

PETER SIMON

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