US734206A

US734206A - Sound-reproducing machine.

Info

Publication number: US734206A
Application number: US13321602A
Authority: US
Inventors: Julius Wellner
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-11-29
Filing date: 1902-11-29
Publication date: 1903-07-21
Anticipated expiration: 1920-07-21

Description

No.734,206. PATENTED JULY2l,19 O3.

' J. WELLNER.

SOUND REPRODUGING MACHINE.

APPLICATION nun NOV. 29, 1902.

H0 MODEL.

(7:25am 7%Z Jaer war UNITED STATES PATENT i atnted jury e1, 1905.

OFFIGE.

SOUND-REPRODUCING MACHINE.

srnofrroerroiv forming part of Letters Patenthfo. 734.,206, dated Jiily 21, 1903.

Application filed November 29,1902. Serial No. 133,216 (lil'o model.)

of devices for supporting and guiding the sound-box, in mechanism for raising and lowering the stylus-needle to and from the record at extremity of its forward and backward movements, and in means for controlling the motion of the sound-box, all of which will be hereinafter fully described.

Referring to the accompanying page of drawings, Figure 1 illustrates a side elevation of a sound-reproducing machine with the stylus in position to be fed forward by the groove of the record. Fig. 2 represents a detached front elevation of the sound-box and its supporting-tube with the sound-box feed forward to the full extent of its movement and the stylus lifted from the record, and Fig. 3 shows a perspective View of the sound-box detached from its supporting-tube.

Referring to the reference-letters of the drawings, A represents the record; B, the sound-box; O, the carrying-tube, and D the horn. The record A is supported on a turntable A, which is fastened to a shaft A suitably journaled in the frame A of the machine. The shaft A may be driven by a suitable prime mover-such, for instance, as an electric motor-or by the well-known springdriven clockwork mechanism.

The sound-box B is provided in the usual way with a diaphragm B, a stylus-lever B and a stylus B and in addition to these has a long tube B projecting out from the center, which is guided in the carrying-tube or journal 0. The tube B of'the sound-box has pressed into its sheet two parallel grooves b and b, which are brought together by a channel at a point b The sound-box being free to turn in the journal 0 is provided with a weighted lever B by which the stylus is caused to turn and engage the groove of the record when it is moving forward.

nal for the tube B of the sound-box, is fastened to an arm 0, which is secured to the frame A of the machine by screws 0 c.

The horn D, which for the convenience of space is located directly above the turn-table, is rigidly connected to the carrying-tube O by an elbow d.

Supported upon the tube 0, which is of thin brass, is a solenoid E, the terminalseand eof which are connected to a source of electrical energy F. On the upper side of the tube C, at the end nearest the sound-box, is a roller G, journaled in a leaf-spring G which is fastened t0 the tube by screws g g. The roller G passes through an opening G in the tube O'and by virtue of the spring G is caused to engage either the groove her I) of the tube-B When the sound-box is in the position shown in Fig. 1, the roller G will rest in the groove b, which is of sufficient width to allow the sound-box to turn and engage the groove of the .record under the influence of the weighted lever B When the sound-box has been fed forward to the full extent of its movement by the groove of the record, the stylus-lever B is brought in contact with'a pin b fastened to theturn-table A and passing through a hole aim the record A. As the turn-table revolves the pin b engages the stylus-lever B and causes it to turn, as shown in Fig. 2, thus forcing the roller G out of the groove 1) into the groove 1), and at the same time electrical contact is made by'the styluslever engaging a contact 2 causing the solenoid-E, which acting upon the iron tube B of the sound-box to draw it into the position shown in Fig. 1, at which point the roller G approaches the passage b and by the turning of the sound-box under the influence of the weighted lever'B finally enters the groove b.

as a bearing to guide the tube of the soundbox as the stylus traverses the helical groove of the record.

2. A sound-reproducing machine in combination with the turn-table, a sound-box provided with a diaphragm and stylus, and with a centrally-projecting tube, a fixed tubular bearing surrounding the tube of the soundbox and forming an axis for the sound-box and its tube in which it may rotate as well as a bearing to guide the sound-box and its tube as the stylus traverses a helical record-groove, and a weighted lever projecting out from the rim of the sound-box to cause the same to turn and retain the stylus in communication with the record-groove, substantially as described.

3. A sound-reproducing machine comprising in combination, a turn-table adapted to receive a record, a sound-box adapted to slide and free to turn, a fixed hollow bearing supporting the sound-box, and a pin mounted upon the turn-table and adapted to turn the sound-box, substantially as specified.

4. A sound-reproducing machine, comprising in combination, a turn-table, adapted to receive a record, a sound-box adapted to slide and free to turn, a fixed hollow journal carrying the sou nd-box, a pin mounted upon the turn-table and adapted to turn the sound-box, and means for returning the sound-box after it has been fed forward over the turn-table, substantially as described.

5. A sound-reproducing machine, com prising a turn-table, suitably supported and rotated, provided with a record-disk, a soundbox adapted to slide and free to turn, a weighted lever to turn the sound-box and cause it to engage the record, a pin mounted upon the turn-table and adapted to turn the sound-box at the end of its forward move ment, a fixed hollow bearing carrying the sound-box, means to carry the sound-box to move forward and backward in said bearing, and a horn connected to and extending out from said hollow bearing, substantially as specified.

6. A sound-reproducing machine, comprising a turn-table having a record, a soundbox having a projecting tube provided with grooves, a fixed hollow bearing carrying said tube, a spring-pressed roller adapted to said grooves, means for turning the sound-box at the end of its forward travel so as to cause the roller to move out of one end and into the other of the grooves and thereby raise the stylus from the record, means to return the stylus to its initial position, substantially as described.

7. A sound-reproducing machine, comprising in combination, a turn-table, a soundbox mounted in a journal and adapted to slide and free to turn, means for feeding the sound box forward, and turning it at the end of its forward movement and a solenoid for returning the sound-box to its initial position, substantially as specified.

8. A sound-reproducing machine, comprising in combination a rotary sound-box carrying a stylus, a turn-table, a record-disk upon its turn-table provided with a helical recordgroove, a projecting pin at the inner extremity of said groove and operated to turn the sound-box bodily and thereby disengage the stylus from the record.

In testimony whereof I afiix my signature in presence of two witnesses.

JULIUS WE LLNER.

Witnesses:

DAVID S. WILLIAMS, ARNOLD KATZ.