US1187129A - Talking-machine. - Google Patents

Description

A. BERTOLUCCI. TALKING MACHINE.

APPLICATION FILED APR. 26, i915.

1,1 87, 1 29, Patented June 13, 1916.

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TALKING MACHINE.

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1 l 87, 1 29 Patented June 13, 1916.

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TALKING MACHINE.

APPLICATION FILED APR.26. 1915.

1 1 87,1 29. Patented 11110 13, 1916.

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ALBERTO BERTOLUCCI, OF PHILADELPHIA, PENNSYLVANIA.

TALKING-MACHINE.

.utilizing improved means for causing the second record to start instantly with the conclusion of the first record.

A further object is to provide improved means for positioning records above continuously revolving turn tables, and so connect the several parts of the mechanism as to cause thesecond record to drop into playing position when the first record is completely played.

A further object is to provide an improved construction of turn table and disk record supporting means above the samewith improved means secured above the disk record for causing the movement of the tone arm, whereby the latter through suitable mechanism, compels the operation of the next record, so that there is practically no lapse of time between the play ng of one record and the other, thus enabl1ng operas and other long records to be divided onto a plurality of disks, and the disks played in succession.

With these and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts as will be more fully hereinafter described and pointed out In the claims. o

In the accompanying drawings: Figure 1 is a top plan view illustrating my mprovements. Fig. 2 is a fragmentary view in transverse section on the line 22 of Fig. 1. Fig. 3 is a fragmentary plan view omitting the tone arms and sound boxes. Fig. 4 is a view partly in srde elevation and partly in section, the sect1on being taken on the line .41 of F g. 3. Fig. 5 is an enlarged view in section 1ll'ustrat ng the record holding plate and its cooperating. parts. Fig. 6 is an enlarged view in transverse section through the tone arm and the trip engaging member attached thereto. Fig. 7 is a perspective view of the cam 15.

Specification of Letters Patent. Patented J 11119 13 1916 Application filed April 26,

1915. Serial N 0. 23,984.

Fig. 8 is a perspective view of the tripping mechanlsm, and Fig. 9 is a perspective View of the plate supporting frame.

1 represents the box of a talking machine, and 2, 2, are vertically positioned tubular shafts extending above the box and supporting turn tables 3 thereon. I have not attempted to illustrate any motor or mechanism for operating the shafts 2, but it is to be understood that these shafts are continuously revolved in the same direction, and I may utilize any form of mechanism for driving them.

4, 4, represents two tone arms carrying sound boxes 5 at their free ends, and while I have illustrated my invention in connection with two turn tables 3 and cooperating parts, I would have it understood that I may employ any desired number.

The turn tables 3 at their centers are provided with conical recesses 6 to receive conical enlargements 7 on record guiding rods 8. Each rod 8 fits within the hollow shaft 2, and at its upper end is reduced in diameter forming a shoulder 9, and is provided at its upper end with a threaded lug 10 for the reception of a thumb nut 11 for a purpose which will hereinafter appear.

12 represents a flat plate which is preferably provided with some friction material on its lower face, so that when it contacts with the surface of the turn table, which latter is also preferably provided with some friction material, the parts are compelled to turn together.

13 is an ordinary record disk, and plate 12 and disk 13 are provided with central openings 14 to receive the upper end of the rod 7 and rest upon the shoulder 9..

15 represents a cam which is provided with a central opening 16 to receive the lug 10, and when the thumb nut 11 is screwed into place, the cam 15, disk 13, and plate 12 will be rigidly secured to the rod.

The part 15 I term a cam, because it is provided with a cam groove 17 connecting the extreme edge of the cam with a circular groove 18, and it is the intention to so position this cam that the groove 17 will register with the end or inner groove of the record disk, so that when the needle or stylus reaches the end of the record, it will follow the groove 17 into the groove 18, and thus cause the tone arm to move rapidly to one side and during this movement, operate my improved tripping mechanism shown in detail in Fig. 8. The cam 15 is made witha slot 19, so that it is capable of a wide range of adjustment to properly position the groove 17 in accordance with the record. It is, of course, to be understood that 1 will provide a number of rods 7 with plates 12, disks 13, and cams 15, so that these parts may be arranged and located on the turn tables.

The plates 12 are normally held in an elevated position by means of a frame 20 shown in perspective in Fig. 9. This frame 20 has two supportingarms 21 which engage the plate 12 outside of table 3 as shown in Fig. 3, and normally hold the plate elevated so that the table turns freely without turning the plate. The frame 20 is of general fork shape pivotally mounted at 22, and having a lug 23 projecting beyond the pivot. It is to be understood, of course, that there are two frames 20, or in other words as many frames as there are turn tables, and the frames are normally held in elevated position by pivoted catches 24. These catches 24 are horizontally positioned on the box 1, pivotally supported between their ends as shown at 25, and at one end are adapted to be positioned above the lugs 23 of frames 20 and hold the frames in their elevated position.

26 is a coiled spring exerting pressure on the catch 24 to move the same from its set position to the position shown at theright of Fig. 3.

On the box 1, I locate two plates 27, and these plates support what 1 term my improved tripping mechanism, one of which mechanisms is illustrated in perspective in Fig. 8. On the plates 27, levers 28 are pivotally supported between their ends as shown at 29, and at one end are connected by rods 30 with the catches 24. -The other ends of the levers 28 are formed with upwardly projecting plates 31 having slots 32 therein into which the shorter members 33 of tripping levers 34 project. This shorter member 33 has a notched end 35 against which the plate 24 is normally held by a spring 36, but when the shorter member 33 of lever 34 is moved downwardly, spring 36 operates to swing lever 28, and the peculiar shape of slot 32 allows the plate 31 to move toward the pivot 37 of lever 34., This movement of the lever 28 exerts a pull on rod 30 to throw the catch-24 and release the frame 21, which permits the plate 12 and parts carried thereby to fall by gravity, and hence move into frictional engagement with the turn table to cause the instant movement of the record.

Levers 34 are provided with enlargements 38 which are adapted to be'engaged by screws 39 supported in brackets 40, the latter secured to the tone arms 4. The screws 39 are ad ustable so as to insure a proper positioning of the same, and are clamped by set screws 41 against movement.

Figs. 1 and 2 illustrate the position of the parts in normal operation. The turn table 3, at the right, iscausing the record disk 13 to revolve, and move the tone arm 4 toward the'left of Figs. 1 and 3.

It will be noted that the record 13 at the left of Figs. 1 and 2 is elevated, so that the turn table 3 can revolve without turning the record. As soon as-the record at the right is completely played, the needle or stylus 42 will ride into the groove 17 of cam 15, 'and the tone arm 4 at the right will be given a quick movement which will be sufficient to move the screw 39 against the tripping lever 34, causing the release of the catch 24, at the left of Figs. 1 and 2, whereby frame -20 is, released and the plate 12 and disk 13 will fall by gravity into operative position and instantly the turn table 3 at the left will begin to revolve the record whereby it will begin to play. By reason of this construction, as soon as one record is finished another one will instantly begin, and while the second record is being played, a third record can be positioned on the first-mentioned turn table, and by this means a long opera or other record may be continuously operated without stopping.

Various slight changes might be made in the general form and arrangement of parts described without departing from my invention, and hence ll do not limit myself to' the precise details set forth, but consider myself at liberty to make such changes and alterations as fairly fall within the spirit and scope. of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. The combination with two turn tables, and pivoted tone arms movable above the turn tables, of disk supporting plates above the turn tables, frames normally holding the plates elevated above the turn tables, mechanical catches holding the frames in the last-named position, mechanical tripping devices engaged by the tone arms, and rods connecting the tripping devices and the catches, whereby the movement of the tripping devices by the tone arms compels the mechanical operation of the catches to release the frames, substantially as described. Y I

2. The combination with two turn tables, and pivoted tone arms movable above the turn tables, of disk supporting plates of appreciably greater diameter than the turn tables, frames engaging the plates at opposite sides of the turn tables, and normally holding the plates elevated above the turn tables, mechanical catches holding the frames in position to maintain the disks elevated, mechanical tripping devices located in the path of movement of the tone arms and engaged directly by the tone arms, and rods connecting the respective tripping devices with the catches, whereby the operation of one tripping device by a tone arm causes the release of the catch controlling the disk below the other tone arm, substantially as described.

3. The combination with two turn tables, and pivoted tone arms movable above the turn tables, of disk supporting plates of appreciably greater diameter than the turn tables, frames engaging the plates at opposite sides of the turn tables, said frames each having two supporting members located at opposite sides of the turn tables and having segmental supports thereon directly engaging the plates, and normally holding the plates elevated above the turn tables, mechanical catches holding the frames in position to maintain the disks elevated, mechanical tripping devices located in the path of movement of the tone arms and engaged directly by the tone arms, and rods connecting the respective tripping devices with the catches, whereby the operain the path of movement of the tone arms causes the release of the catch controlling the disk below the other tone arm, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALBERTO BERTOLUCGI.

Witnesses:

MARIE JAoKsoN, CHAs. E. POTTS.

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