US1036279A - Phonograph. - Google Patents

Description

F. D. LEWIS.

'PHONOGRAPH.

.PPLI 0ATION FILED APR. 12, 1909.

Patented Au 20, 1912.

zj j I 37/ FRANK D. LEWIS, OF ELIZABETH, NEW

JERSEY, Assicnon, BYMMESNE assrcnmnn'rs,

TO THOMAS A. EDISON, INCORPORATED; OF WEST ORANGE, JERSEY, A 6035- PORATION OF NEW JERSEY.

PHONOGRAPE.

Patented Aug. so, ieie.

Application filed April 12, 1909. Serial No. 489,411.

To all whom it may concern: Be it known that citizen of the United States, and a resident of Elizabeth, in the county of Union and State of New Jersey, have made a certain new and useful Invention in Phonographs, of which the following is a. description.

My invention relates one hundredthread thread records, may single reproducer, single diaphragm, being record I, FRANK D. LEWIS, a,

' gaskets 3 and of floating weight ate, while the. other stylus is in inoperative 29 position. lprefer to in suchposit-ion. by; a. bodily movement 0 the whole reproducer, preferablyby swing- I ing the same through an angle of 180 de-; 9 will be seen the shape of a thick getter grees.

styluses referred to are remove one stylus from j operative position and place the other stylus j I f that if Fig.1 2,. be held .With t ,e pivotal t e Said W g to. also; have approximateiy' In carrying out my invcntion .the two: mounted onstylus levers :which are preferably .pivotally mounted each on. a scparate-floatin'gweight. s

these-.two pfloatingl The. par of. ea h weight -which extends The construction of weights, by: means of which the each may weight of be advantageously. distributedand the construction made compact and efi'icient,

also forms thesubject matter of. one of the objects of invention;

Another object is the prqvisionlofim-fl roved means,- for pivoting the stylus levens 1 case of weight 9.. At these downwardlybent weights, wheree stylus-may be;

' for its: passage inithe other.

offmy invention reside in the details of construction and. combinations of elements, as will be hereinafter described and claimed.

Attention is hereby directedftoithe a'c companyingdrawings forming part of this specification, which the same characandiin ters areus'ed-to denote corresponding parts. In the drawings, Figure 1 represents .a

59 central vertical section through my im- PI'OVBdfI GPPOdUGGI, some of elementshee ing shown in side elevation. Fig. 2 is a bottom plan view of the same. 5

Referring to the drawings, the: diaphragm 55 l is securedanithe sound box -2..bly.me ans of secured to the threaded pin 8, as is also common.

.of the sound; box.

The floatingweight 5 is piyotally secured by pin 6 to body of sound box 2. by

metrically opposite to the pivotal 5, as has been describe the floating; weight 9 is, similarly mounted, being pivoted by ,pin 10 to 'block 11, which is piv'otedby threaded pin 12 to thebody As shown inthe plan v ew in Fig. 2, the floating weight 5 extends over substantially the whole area of a circle exc-e t for .a central vupper portion of the same, so that ifthe drawingbe held-with Diamountin adjusting ring has is common.

block7, which is pivotally the pivotal mounting of the floating. Weight shown in Fig. 2, at the top, the-we ght will be roughly theshapeofa vexy C. Similarly, the floating weight;9 covers substantiallythe whole area of a circle with the exception oiia A central: ne '1 option, so

mounting of weight 9 above,

0.: By the conformation of th" weights just described it is possible to/m unt the same compactly, the pivotal mounting 0f one weight being above the, tail-,of the other.

above thetail of, the other, as described, extends substantially Q; parallel to the diaphragm,, until the p has beeni removed 1s ,reached, when a sharp downward bend 5 occurs, 13 in the case of weight 5 aid. 14 in the portions the two weights .pass, cjachKother, each extending through Thus, the weight 9 extendsto the left from its pivotal mounting above the tail of the weight fi until it descends at bend 1 1 from which point it extends to its tail below the'pivotal :mountwhile weight 5 extends to the right from its pivotal mounting above thetail of weight 9 until the downward ben'd 13 is reached, after which point the weight 5 extends to its tail below the pivotal mounting of weight 5,

stituting a. leverage extension;

such as shown not ht 9. By this method of mount- V thi k. letter art ;of the weight which the space prov d d Stylus lever 15 carried by floating Weight 9 and stylus lever 16 is carried by floating Weight 5 in any convenient man-.

ner. Stylus 17 is secured to lever 15 and stylus 18 is carried by lever 16, stylus 17, as shown, being adapted to codperate with the 100 thread records and stylus 18 with the 200 thread records, although, of course, it is obvious that my invention is not confined to records of the particular character described. Lever 1.5 is pivoted to horizontal pin 19 and lever 16 to horizontal pin 20, 'pin 19 being mounted in lugs 21 and pin 20 in lugs 22.

Lugs 21 and 22 may be cast integral with the bottoms of their respective floating weights if desired, but I prefer to mount them as shown in order to permit free movement of the respective Styluses transverse to the record groove with which they are adapted to cooperate. Thus, the lugs 22 carrying stud 20 have formed integral therewith the threaded pin 23, which is adapted to be screwed into a threaded hole in floating weight 5. Lugs 21' carrying pin 19 on which lever 15 is mounted may have formed integral therewith a corresponding threaded pin, which is screwed into a threaded hole in floating weight 9. These screws are adjusted to properly position the Styluses and afford pivotal movement of the stylus levers and the styluses carried thereby in a direction transverse to the record groove. In yielding to whatever irregularity or curve of the record causes movement of the stylus transverse to the groove, the threaded pin as 23 will tend to screw itself slightly up or down in the floating weight in which it is mounted, but the transverse movements will be so slightthat the vertical movement thus given the lever mounting will be inconsiderable. It is, however, obvious that I am not limited to the style of pivotal mounting shown, but that any other means by which the stylus may be allowed movement transverse to therecord groove may be used, as for example, the pivotal mountdescribed in the application of Peter eber, Serial No. 456,701, filed October 8, 1908, or that described in the application of Dyer and Neber, Serial No. 184,811, filed March 20, 1909, or any other convenient pivotal mounting. The stylus levers 15 and 16 7 which are mounted as described are preferably bent so that Styluses 17 and 18 .are brought into the same diametrical line through the axis of the reproducer, which line is preferably the diameter of the re roducer b1secting the pivotal-mountings o the two Weights. The tails of the two levers 15 and 18 are brought adjacent to each other and are connected by the single link 24 to the center of diaphragm 1. In operation, when stylus 18 is engaging the record surface as shown in the drawings, stylus 17 is in- 1,o'se,279

operative and out of engagement. When it is desired to bring stylus 17 into engagement with the record surface and place stylus 18 in inoperative position, reproducer 2 is lifted out of posit-ion and turned through an angle of 180 degrees, whereupon the two styluses will have interchanged places.

It is obvious that I am not confined to the exact details of construction, but that my invention is as broad as the wording of the appended claims.

Having now described my invention, what I claim and desire to protect by Letters Patent is as follows:

1..In a phonograph reproducer,'the combination with a sound box and a diaphragm mountedtherein, of a pair of interfitting floating weights carried by said sound box, a stylus lever carried by each floating weight, a stylus carried by each lever and 5 means for connecting said levers to the center of said diaphragm.

2. In a honograph reproducer, the com bination with a sound box and a diaphragm mounted therein, of a pair of interfitting floating weights pivoted to said sound box at diametrically opposite points thereof, a stylus lever carried by each floating weight, a stylus carried by each lever,,and means for connecting said levers to the center of said diaphragm, substantially as described.

3. In a honograph reproducer, the combination with a sound box and a diaphragm mounted therein, of a pair of interfitting floating weights carried by said sound box, a stylus lever carried by each floating weight, a stylus carried by each lever, and means for connecting said levers to the center of said diaphragm, each of said Weights having a part located directly above and a part located directly below the other weight, substantially as described.

1 4:- In a phonograph reproducer, the combination with a sound box and a diaphragm mounted therein, of a pair of interfitting floating weights carried by said sound box, a stylus lever carried by each floating weight, a stylus carried by each lever, and

means for connecting said lever's to the center of said diaphragm, said stylusesbeing located in a straight line intersecting the axis of the reproducer, substantially as described.

5. In a phonograph reproducer, the combination with a sound box and a diaphragm 120 mounted therein, of a pair of 'interfitting. Y

Weights to the sound box at diametricallyopposite points thereof, a stylus lever carried by each weight, a stylus carried by each lever, and means for connecting the tails of the said levers to the diaphragm, each weight extending partly above and partly below the other, substantially as described.

7. In a honograph reproducer, the combination with a sound box and a diaphragm, of a pair of interfitting floating weights means for pivotally m'ountin the sai weights to the sound'box at diametrically opposite points thereof, a stylus lever car riedby each ,vveight, a stylus carried by each lever, and means for connecting said levers to the diaphragm, each Weight being formed With a leverage vextension beyond the fulcrum of the stylus lever carried by such Weight, substantially as described.- 1

This specification signed and witnessed this 9th day of April 1909 FRANK D. LEWIS.

Witnesses: I

DYER SMITH, JOHN M. CANFIELD.

popies of this patent may be obtained for flv'e cents each, by addressing the Commissioner '0! 2mm.

Washington, D. 0.

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