US1389089A - Phonograph - Google Patents

Description

1. NfANDERsoN.

PHONOGRAPH.

APPLICATION FILED APR.2B. 1919.

1 ,389,089. Patented Aug. 30, 1921.

CR; @Mm

4Pii'riju'r oFFIcE.

i .'roHNN. ANDERSON, oFcIIICAGo, ILLINOIS.

i vPHONOGRAIEH.

Specification of-Letters Patent. l Patllted Allg. 30, 1921-.

Aspire-anonima `April 28, 1919. serial No. 293,220.

yTo@Hecha/m515mayconcern.' Be it known that I, JOHN N. ANDERsoN a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Phonographs, of which the following is a specification.

This invention relates to phonographs.

One of the objects of the invention is to provide an improved phonograph.

Another object is to provide a phonograph wherein access to the interior of the cabinetl may be readily obtained.

Another object isto provide an improved phonograph wherein access to the motor may be readily obtained.

Another object is to provide an improved phonograph wherein the horn is supported independently of the motor, turn-table and tone-arm.

Other objects and advantages of the invention will appear from the specification and claims. i

VAn embodiment of the invention is illus- .trated in the accompanying drawing, where- 1n- 1 Figure 1 is an elevation of the phonograph structure showing parts in section.

Fig. 2 is a transverse section taken on line 2-2 of Fig. 1.,

Fig. 3 is a section taken on line 3-3 of Fig. 2.

Fig. 4 is a section taken on line 4 4: of Fig. 1. y

In all the views the same reference characters are employed to indicate similar parts.

5 is a casing provided with the usual sound emitting opening 6, near its top open end, within which is placed a sound emitting horn 7.

The upper smaller end of the horn 7 is connected to and supported byy a horizontal board below thelid or top plate 8, hinged to the casing, as at 9, and supporting 4a suitable motor 10, which rotates a turn table 11. The cover 12 is also hinged to the casing near the point 9 and is held in its elevated position by suitable means 13. Immediately over the small end of the horn is -a tone arm 14, supported by lid Scarrying the usual sound box 15. Extending across the interior of the casing, on all four sides, is a cleat 16 upon which rests the horn supporting board 17. vThe board 17 extends from one side of the casing to the other and restsH upon the cleat 16 tovwhich it is firmly aliXed.

The horn proper is made, preferably, of

four walls, of relatively thin wood, preferably spruce, providing a structure, preferably rectangular in shape. The small end of the horn is supported by the board 17, and on each side, the opposite walls 18 are glued to the blocks .19 and these blocks are se cured to the board 17 by screws 21. A block 2O is placed on the board 17 and its opening registers with the opening 20 covered by the tone arm 14. To the four walls 18 of the horn are glued, to the outside surfaces thereof, spaced apart strips or cleats `22, of wood, preferably, ofthe same material. The strips 22 are preferably beveledk at their confronting edges and are not quite in contact with each other and therefore the reinforcing strips do not dampen the vibrating effect of the walls of the horn, at the same time, they afford considerabley strength to withstand any mechanical vibration or jar.

The front end of the horn is suspendedl in the opening 6, being supported entirely by the board 17, in the manner described, so that it may vibrate `freely and bodily. The weight of the horn being suspended upon the board 17, exerts on the board a torsional strain tending to turn the board on its longest Vaxis and therefore the board contributes its resonant effect to that kof the horn rather than to act as a damper to prevent its vibration. y

The horn being supported independently of the hinged lid carrying the motor, turntable and tone arm allows the lid to be raised readily for the inspection, cleaning and oiling of the motor and does not interfere with the ordinary automatic stop for stopping the motor when a record has been played. Such stops are usually operated by the tone arm and must ordinarily be folded or moved out of the way before the lid supporting the motor can be raised to give access to the motor andthe interior of the cabinet. By having all of the operative parts carried by the lid, the stop may be left in operative position without interfering with the raising of the lid. Y

WVhile I have herein shown a single embodiment 0f my, invention for the purpose of clear disclosure, it is manifest that many changes may be made in the general arrangenient and Configuration of the parts Within the scope of 'the appended claims.

Having described my invention,` what I claim is f 1. In a phonograph a horn angular in crossy section having a plurality of tapering Walls of relatively thin material and spaced apart cleats-secured to the outer surfaces of said walls at frequent intervals.`

2L In a phonograph a horn angular in cross section having a plurality of tapering Walls 0f relatively thin material secured t0- gether at adjacent meeting edges, and spaced apart cleats secured to the outer surfaces of said Walls at 'frequent intervals, adjacent cleats on the respective Walls being in the saine transverse plane leaving unoccupied spaces intervening between each series of cleats.

In testimony whereof I hereunto subscribe my naine.

JOHN N. ANDERSON.

Images