US1673235A - Repeating attachment for phonographs - Google Patents

Description

June 12, 1928. 1,673,235

W. B. FAGEOL REPEATING ATTACHMENT FOR PHONOGRAPHS Filed Jan. 21, 1927 3 Sheets-Sheet June 12, 1928. 1,673,235

W. B. FAGYEOL REPEATING ATTACHMENT FOR PHONOGRAPHS Filed Jan. 21, 1927 s Sheets-Sheet 2 June 12, 1928. I 1,673,235

' 4 w. B. FAGEOL REPEATING ATTACHMENT FOR PHONOGRAPHS Filed Jan. 21, 1927 s'sheets-sheet 3 g V W Patented June 12, 1928.

UNITED STATES WILLIAM B. PAGE-0L, or OAKLAND, oeuro nnm.

RE EEATING ATTACHMENT FOR PHONOGRAPHS.

Application filed January 21, Serial No, 162,494,

This invention relates to mechanisms used in phonographs for auton'iat-ically repeating the playing of a record. I

Itis the chief object of the invention to devise a mechanism of this character which will be extremely simple in construction, will be entirely reliable in operation. and which'can be manufactured economically.

' The nature or the invention will'be' readily'understood irom the following description when read in connect-ion with the accompanying drawings, and the novel features will be particularly pointed outin the appended claims.

In the drawings,

Figure lis'a plan view showing a mechanism eihbodying this invention attached to the tone arm of a plion'ograph;

Fig, 2v is a side elevation of the mechanism shown in Fig. 1;

Fig. 3 is a plan View showing a mechanism embodying this invention applied to a phonograph of a different type from that shown marge-1 and 2; v

Fig. 4 is a" cross-sectional view substantially on the line4t, i 3;

Fig. 5 is a cross-sectional view substantially on the' line 5-5, Eig. 3; and] 7 Figs. 6 and 7 are plan and side'vie'ws, respectively, showing still another embodiment of. the invention;

Referring first toFigs. 1 and 2, the con struction there shown Comprises a tone arm 2 mounted for swinging movement about a vertical pivot 3 and carrying a' goose neck 4 which forms, in effect, 'a continuation of the tone arm 2. The goose neck carries a reproducer or sound box 5, this re'produc'er having a holder for the needle or stylus 6 which runs in the grooves 01": the disk record 7. This record is supported on a revolving table 8 which is mounted on the upper end of a spindle or shaft 9, and the up" 10 of this spindle projects through the table and record and serves as a centering pin for the records. The pivotal support of thetone arm permits it to swing in a horizontal plane asthe reproducer 5 travels laterally across the record 7 and the goose neck is mounted for pivotal movement about a horizontalaxis transverse to the axis of the tone arm, so that the reproducer 5'can be swung upwardly out of playing positior'n'with the needle 0d the record, or downwardly intosaidposition again.

The parts so far described are those of a well known make of ph6img1-a' 1'1;

The mechanism embodying this invention as illustrated inFigs. '1 and 2, comprises a lever 12 t'ulcrum'edat 13 'on a clamp 14 which is removably secured to the tone arm 2. This l ev'e'r includ'es a'weight'ed rearward end 15 and a curved forward arm 16 which projects under the part of the goose neck 1 in'nnediately adjacent to the r eprodfucer'. A screw 17 is threaded vertically't'hr'o ugh the end otthe arn i 1'6 and is adapted to engage the goose'neckl 'The operatingelement for this mechanism consists of a cam'18 rotatably inounted on 'a horizontal shaft 19 which projects laterally from the lever'12. Preterably the edge of the cam is covered with rubber,leather, or some equivalent material. It will be observed that'th'e cam 18 is offset laterally'tro-m the tone arm ina direc tion inwardly with reference to the record 7 so that when the playing of the record is begunfhe cam 18 willbe positioned over the central portion of the record 7. A t this time the cam is held out or engagementwith the record by the weighted end 1 5"ot the lever 12. Also, the low point a' of the cam disk, that is, the point on the surface nearest to the axis, is lowermost and close to the record, the cam being prevented from rotating under the'intluencebt gravity by astop pin 20, Fig. 1, which projects from the hub of the cam 18 and at'this time engages another stop 21 projecting from the arm 12 at'the lower side of the shaft 19.

For the purpose of moving the'cam 18 into contact with therec'ord when theplaying of the record has been substantially completed, a stop screw 22 is arranged to en'- g'age the weighted end 15 of the lever 12, this screw being threaded through an upwardly projecting arm of a stationary bracket 28 which is screwed to the top of the phonograph cabinet. lVhen the screw engages the curved lower side otthe lever arm 15 as the tone arm and lever are being carried inwardly of the record 7, the screw swings the right-hand endof the lever '12 downwardly, thus bringing the'e'dge of the cam '18 into contactwith the record? The movement of; the record revolves the cam 18 in a clockwise direction, Fig. 2, and, due to t e eccent c sh p f'th' c ei e movement r s s ii f n th r thand and or th e er 2, h s bring he screw 17 into contact with the goose neck 4 and liftingthe reproducer out of playing position, or, in other words, lifting the needle 6 out of contact with the record. The

rotative movement so imparted to the cam.

18 is limited by the stop pins 20-21, previously referred to, and the record 7 immediately begins to transfer the cam disk and the tone arm, swinging the arm outwardly toward its initial position. This transferring movement continues until the cam arrives at a point on the other side of the central part of the record where the direction of travel of the record is such that it rotates the cam in a direction opposite to its previous direction of rotation. This reverse rotation results in lowering the reproducer 5 into playing position again with the needle 6 in contact with the grooved portion of the record.

In order to limit the outward or resetting- I movement of the tone arm, the bracket 23 is provided with a second upwardly extending arm through which a stop screw 25 1s threaded, this screw being positioned to engage a lug 26, Fig. 2, which projects downwardly from the clamp 14. The adjustability of the screw permits the setting of it for different sizes of records and also to accommodate variations in the distance wardly from the edge at which the record grooves begin on different records of the same size.

It willbe observed that due to the offset arrangement of the cam with referenceto the tone arm, the cam is located, when the playing of a recordis begun, at a point between the sound box and the line b7)' connecting the axes of the pivots 3 and 10. During the playing of therecord the .cam moves laterally across said line vbb and away from the central part of the record.

Consequently, whenthe cam is lowered into contact with the record 7 it strikes a part of the record which is moving at arelatively high speed. The subsequent resetting or transferring movement of the cam'and the tone arm results in moving the caminto contact with a part of'therecord much closer to the center pinjlO, so that when the reverse rotation of the cam occurs, the disk then 'is driven by a part of the record which moves at a comparatively slow speed. This ar- Jrangement is of advantage in lowering the reproducer gradually into'its playing ])0Slcent to the rcproducer 5, and lifts the re producer when the playing of a record is finished. The tone arm is supported in, a bracket or fixture 29 so that it can swing horizontally about a vertical axis 3', and can also pivot vertically. The operation of this mechanism is essentially like that of' the mechanism shown in Figs. 1 and 2.

A further modificationis shown in Figs.

6 and 7. In this arrangement the tone arm 2, goose neck 4 and reproducer 5 are constructed substantially as shown in Fig. 1. The cam 30 in this instance is made of heavy wire coveredwith rubber and it is mounted to rotate on a shaft 81 which is supported in a bearing that is either made integral with, or is secured fast to, the goose neck extension 4 of the tone arm. The cam is held in an inoperative position by cooperating stops 3233, Fig. 6. as the reproducer travels laterally across the record, but as the playing of the record nears completion, an extension 34 of the cam strikes the. inclined portion 35 of a stationary arm which overlies the record. Further lateral inward movement of the tone arm then results in swinging the disk downwardly intocontact with the record 7, thus causing the record to rotate the disk in a direction to raise the reproducer out of playing position. The reproducer and cam are then transferred by. the record to their initial positions where the direction of rotation of the "record is such that it reverses the movement of the cam 30, causing it to lower the reproducer again into playing position.

able screw 36 which corresponds in function to the screw 25 of the construction shown in Figs. 1 and 2. I

It will now be evident that this invention provides an cxtren'icly simple mechanism for causing a phonograph to repeat the playing of a record automatically as many times as desired; The mechanism can be manufactured very economically. it'is easily attached v This trans. ferring movement is limited by an adjustto a machine, and it requires the making of only very'simple adjustmentsto accommodate difi'erentrecords. It is extremely reliable in operation;

While/I have herein shown and described the best embodiment-sot the invention that I have so far devised, it will be evident. that:

the invention maybe embodied in other iorn'is without departing from the spirit or scope thereof.

fHavi'ng thus described my inventiomwhat I'desire to claim as new is:

l. A repeating mechanism for disk phonographs comprising, in combination, a device "arranged to be operated the phonograph record to raise the reproducer-out'oi playing position and to lower it again into said position, supporting means for said device connected with the tone arm and operative to cause the tone ari'n to move said device from one side of the central portion of the record to the other, means for holding said device out of contact with the record during the playing of the record, and means for lowering the device into contact with the rcrord when the playing, of the record has been substantially completed.

2. In a repeating 'att'a'c'hment ior phonographs, a mechanism for raising thereproducer out or playing position and returning it again to said position, comprising a cam, means for supporting said cam for movement laterally across therecor d with the tone arm from a point on the record operative to rotate the cam in one direction to an other point operative to rotate it in the opposite direction, and means for controlling the engagement or said cam with the record.

In a repeating attachment for phonegraphs, a mechanism for raisingth'e repreducer out of playing position and returning it again to said position, comprising a cam, means for supporting said cam for movement laterally across the record with the tone arm from a point on the record operative to rotate the cam in one direction to another point operative to rotate it in the opposite direction, means for movlng said cam into operative contact with the record at sul'istantially the completion of the playing of the record, whereby the cam is 0perated by the record to raise said reproducer, transfer it to its initial position, and lower the reproducer again, and means for limiting said transferring movement 01" the reproducer.

l. In a repeating attachment for phonographs, a mechanism for raising the reproducer out of playing position and returning it again to said position, comprising a 'am, means for supporting said cam :tor movement laterally across the record with the tone arm from a high speed point on the record operative to rotate the cam in one direction to a low speed point operative to rotate the cam in the opposite direction, means 101' holding said cam in an inoperative position during the playing of the rec- 0rd, and means for moving said cam into operative contact. with the record substantially at the completion of the playing of the record, said cam being arranged to be operated by the rec rate li' ft reprodiicer our of playing passes, "to be carried the record to substantially its initial position, and then to lower said reproduc'er into playing'position again; H V, v

In a re eating'meehanismiordiskphonogra'pli's, the combination with a tone arm and a reproducer connected thereto, of cam, means supporting said cam formotejmerit across the record inniiison with the tone ar'ni, said cam 'being arranged tobe rotated in opposite directions bycontac't withthe record at diiierent pointsaiid operative when rotated in one direction to raise the rep'roduce'r out of playing pos'itioi and when rotated in the opposite diiectionfto lower said reprodii'cer into playing position again, means for holding said cam in an ino 'a'erativ'e position during the play ing of the record, means, for moving said cam into operative contact with the record approximately when the playing of a record has been completed wherebythe cam will be rotated to raise the 'rep'iodncer', transfer to its initial position and lower the i eprodncer again, and adjustable means for limiting said transferring movement or the re: prodi'i'cer. i i V i 6, Ina disk phonograph, the combination with a reproducer and a tone arm pivoted for movement therewith across a record, of a rotatable device for raising and lowering said reprodiicer, means for connecting said device with said to'ne arm for movement therey'vit'h' a'cr'os's the record from one side to the other of a line connecting the axis of rotation of the record with the pivotal axis of said tone arm, and means for moving said device into contact with the record when the playing of the record has been substantially completed, said device being operable upon its rotation by said record in one direction to raise said reproducer, then to move in the same general direction as the record to transfer the reproducer to its initial position, and then to be rotated by said record in a reverse direction to lower the reproducer into playing position.

7. In a disk phonograph, the combination with a reproducer and a tone arm pivoted for movement therewith across a record, a lever carried by said tone arm, a cam carried by said lever and mounted for limied rotation on a substantially horizontal axis, said cambeing ofiset laterally from the tone arm but movable'laterally therewith, a stop arranged to act on said lever when the playing of a record has been substantially completed to move said cam into engagement with the record, whereby it is rotated by its contact with the record to raise said reproducer out of playing position, is then transferred by the record, with the reproducer, to approximately its initial position, and then is rotated by the record in a reverse direction to lower the reproducer into playing when the playing of a! record is begun the cam is positioned between the center of the record and the tone arm and when the playing of the record is completed the cam will be on the opposite side of said center, said lever having a part positioned to lift the reproducer, and means for operating said lever'to move said cam into contact with the recordsubstantiallyupon completion of the playing of the record.

9. A repeating attachment for disk phonographs comprising, in combination, a clamp adapted ,for attachment to the tone arm of the phonograph, a lever fulcrumed' on said clamp, a cam carried by said lever, said lever having an extension to lift the reproducer, a device for actingon said lever to swing it on its fulcrum at substantially the comple tion of the playing of the record, and a stop for limiting the swinging movement of the tone arm. 7

-l0. In a repeating mechanism for disk phonographs the combination with a tone arm and a reproducer connected thereto, of a cam mounted on the tone arm for lateral movement across the record in unison with the tone arm but for rotative movement relatively to said tone arm, means for holding said cam in an inoperative position during ,phonographs, the combination with a tone arm and a reproducer connected thereto, of a cammounted on the tone arm for lateral movement across the record in unison with the tone arm but for rotative movement relatively to said tone arm, said cam adapt-- ed to be rotated in opposite directions by contact with the record at different points and being operative whenrotated in one direction to raise the reproducer out of playing position and when rotated-in the oppo site direction to lower said reproducer again into playing position, stop means for holding said cam in an inoperative position dur+ ing the playing of a record, sai d cam having an extension projecting therefrom, and

an arm arranged to engage said extension substantially at the completion of the play: ing of a record torotate said cam far enough to bring it into operative contact with the record. I

WILLIAM B. FAGEOL.

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