US1662584A - Talking machine - Google Patents

Description

March 13,1928, 1,662,584 c. MOCQIA TALKING MACHINE Original Filed Jan. 2. 1924 2 Sheets-Sheet 1 lNVENTOR V ATTORNEY? March 13, 1928. 5

C. MOCCIA a TALKING MACHINE.

Giiginai Filer; Jan 2, 192 2 fl INVENTOR WWW BY H q ATTORNEY v l ateiat l3, i222.

COSTANTFNO MOGGIA, OF-L YNCH MINES, KENTUCKY.

TALKING MACHINE.

1 Application filed January 2, 1924, Serial No. 683,865. Renewed August 13, 1927.

This invention relates to talking machines of the disk type, which, are commonly known as gramophones, the invention having for an object the PIOVlSlOD of a novel a means whereby a number of records may be played in succession, and be automatically placed in position on the turntable of the I machine and removed therefrom.

For further comprehension of the invenlu tion, and of the objects and advantages thereof, reference will be had to the following description and accompanyingdrawings, and to the appended claims in which the various novel features of the invention 7 lb are more particularly set forth.

Fig. 1 of the drawings is a vertical sectional view showing my improved gramo- 1 phone, this view being taken onthe line 1--1ofFig.3.

Fig. 2 is a vertical sectional view at right angles to Fig. 1 and taken along. the 11116 2-2 of the latter figure.

Fig. 3 is a horizontal sectional view taken on the line 3-1-3of Fig. 1.

Fig. 4 is a detail vertical sectional view I taken on the line 4-4 of Fig. 1.

Fig. 5-is a-detail planview showlng the record carrier, and a record thereon.

Fig. 6 is a fragmentary'side view of the 3orecord carrier.

Fig. 7 is a fragmentary ax1al sectional view showing the clutch operating device.

As here embodied the improved gramophone comprises a box or casing having ver- 36 tical walls 10 and'a top-'11, a. turntable 12 being positioned above this top. The turn table is fixed on a shaft 13, which extends downward into the box, and has a feather.

connection 13, with a hollow drive shaft 14,

through which the shaft 13 extends, this drive shaft being-driven by ordinary mechanism contained in a housing secured under neath the top 11. The shaft 13, extends at its lower end below the housing 15, and the 4c drive shaft 14, and is engaged by a part to Jbe presently described, which raises and lowers the turntable at certain times, The usual tone arm 16 is provided and, has a rotary connection with-thesmall end of a horn 17 The records to be played in succession are placed on. an endless carrier comprising a pair of sprocket chains 20, which are looped being positioned at the sides of the box.

Attached to these sprocket chains are a number of record holders in the form, of the polygonal frame members 23 which carryat their corners the underturned claws 24:, which serve to support the records B, one of these claws, indicated specifically at 24, being hinged to the frame so that it may be swung out to permit of insertion and re- 'moval of the record,-a spring 25, normally holdingthe claw in engagement with the record. i

The chains 20 are advanced step by step, to bring the records successively above the turntable, by'means of a shaft 30, which is driven intermittently from the shaft 14, by means ofaworm pinion 31 on said shaft l3 meshing with a worm gear 32 loose on the shaft 30. Upon this shaft 30, is the pinwheel 35 of a Geneva movement which engages with a starwheel 36 on a shaft 37 parallel to shaft 30. Fixed to' opposite ends of this latter shaft 37 are sprocket wheels such as 38, over which are looped chains 39 which engage also over smaller sprocket wheels such 3.340 on the stub shafts to which the sprocket wheels 21 are fixed. I The worm gear 32 is given an intermittent drive connection with the shaft 30 by means operated from the tone arm 16 as the latter reaches the end of the record.

Fixed coaxially to the tone arm 16 is a bevel gear segment 45 which meshes with a bevel gear 46 looseon theshaft 30 and adapted to be driven. in one direction from said shaft by means to be presently described. The gear segment {15 has a pair of arcuately shaped cam elements 19 and 49' formed on. its lower face. A bell crank lever 52 fulcrumcd as at 53 is formed with a vertical arm 52 and a horizontal arm 52,

andthe said cam elements being engageable of pins 58. The clutch element 59 is adapted to engage a clutch face 60, formed on the gear 32, a spring 61 normally holding this clutch element 59 free. \Vhen the lever 52 is operated by the lug 49 to set the clutch, its horizontal arm remains in position forming an abutment for the collar 54 until the other lug 49 on the gear segment 45 moves the lever to free said collar. The collar 54, also acts to establish a one way connection between the shaft 30, and gear 46, and to this end it is formed with a clutch face adapted to engage a complementary clutch face 46 on said gear.

To raise and lower the turntable a cam disk 65 is fixed on the shaft 30 and has formed therein a cam groove 66 in which engages a finger (17 on a lever 68 fulcrumed at one end-as at 69 and having its other end PlOjeCtiIlg under the turntable shaft 13 to hold the latter raised.

The manner of operation is as follows: Assume that a record is in position on the turntable 12, and the tone arm 16 is in proper position to travel over said record.

.As the turntable rotates the tone arm moves acrossthe record. When the tone arm has swung through an arc sutlicient for the needle to traverse the record, the cam lug 49 on the gear segment 45 engages the lever 52, causing the clutch element 59 to engage the clutch face 60 on the gear 32 and the shaft 30 to be rotated. As shaft 30 rotates the finger 67 on the lever 68 immediately comes into contact with the portion 66 in the cam groove (36 and the lever 68, and with it the turntable 12, is lowered. The teeth on the clutch members 54 and 46' engage and the gear 46 is caused to rotate with the shaft 30, swinging the tone arm 16 to starting position. It will be noted that by the depression of the turntable the needle on the sound box will have left the record R, a stop such as being provided on the vertically adjustable end of the tone arm to engage a like stop such as 76 on the main body of the tone arm to limit downward movement of the needle. \Vhen the shaft 30 starts rotating, the pinwhecl 35 thereon starts moving and engages the starwheel 36 after the turntable has dropped. The shaft 37, being thus rotated the carrier 20 is caused to advance, bringing the next record in position above the turntable. the movement of the carrier being completed before the return movement of the tone arm is finished. As the tone arm completes its return movement, the lug 49' thereon engages the lever 52 and swings the latter to a position free from the collar 54, the spring 61 then moving the clutch 59 free of the gear 32, and the collar 54 free of the gear 46. The parts are so arranged that one complete revolution of shaft 30 causes the tone arm to move to starting position. As the rotation of. the

shaft approaches completion, the finger 67 on lever (38 engages the rise portion (36 in the cam groove 66 and causes the turntable to be lifted. As the tone arm travels over the new record, the gear 46 moves with it, while shaft 30 remains stationary since the gear is loose on the shaft.

Having thus described my invention what I claim as new and desire to protect by Lettors Patent of the United States is as follows:

1. In a talking machine of the class described, a tone arm having a bevel gear se ment projecting therefrom, a shaft rotatab y mounted in said talking machine, a bevel gear loosely engaged on said shaft, and meshing with said bevel gear segment, said bevel gear being formed on one side with a clutch face, a collar slidable on said shaft, and formed with a complementary clutch face, means for normally urging said clutch faces into disengagement, said shaft bein formed with a central bore, and provided with elongated slots ommunicating with said central bore, a rod slidable in said central bore, a cross pin fixed to one end of said rod, and projecting through said elongated slots, engaging said collar, a clutch clement slidable on said shaft, another cross pin fixed to the other end of said rod, and projecting through said elongated slots, enga ing said clutch element, a driven gear loosei y mounted on said shaft, and provided with a complementary integral clutch element, and means for pressing forward said collar to cause engagement of said clutches, when the tone arm is in record playing finished position, and releasing said collar to cause disengagement of said clutches, when the tone arm is in record playing starting position.

2. In a talking machine of the class described, a tone arm having a bevel gear segment projecting therefrom, a shaft rotatably mounted in said talking machine, a bevel gear loosely engaged on said shaft, and meshing with said bevel gear segment, said bevel gear being formed on one side with a clutch face, a collar slidable on said shaft, and formed with a complcmentar' clutch face, means for normally urging said clutch faces into disengagement, said shaft being formed with a central bore, and provided with elongated slots communicating with said central bore, a rod slidable in said central bore, a cross pin fixed to one end of said rod, and projecting through said elongated slots. engaging said collar, a clutch element slidable on said shaft, another cross pin fixed to the other end of said rod, and projecting through said elongated slots, engagingsaid clutch element, a driven gear loosely mounted on said shaft, and provided with a com plementary integral clutch element and means for pressing forward said collar to cause engagement of said clutches, when the tone arm is in record playing finished position, and releasing said collar to cause disengagement of said clutches, when the tone 5 arm is in record playing starting position,

said last mentioned means comprising a pair of arcuately spaced cam lugs on the lower face of said gearsegment, and a bell crank lever formed with a vertical arm engageable with said lugs, and a horizontal arm with 1 a cam surface engageable with said collar and a stationary member, the bell crank lever being fulcrumed thereto.

In testimony whereof I have afiixed my signature.

COSTANTINO MOCCIA.

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