US838505A - Talking-machine. - Google Patents

Description

PATENTED DEC. 11, 1906.

H. A. JOHNSON. TALKING MACHINE.

APPLICATION FILED MAY7,1906.

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N0.838,505. PATBNTED 1150.11, 1906.

11. A. JOHNSON.

TALKING MACHINE.

APPLICATION FILED MAY7-,1906.

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HENRY A. JOHNSON, OF PROVIDENCE, RHODE ISLAND.

TALKING-MACHINE.

Specification of Letters Patent.

Patented Dec. 11, 1906.

Application filed ay 7,1906. Serial No. 315.701.

To all whom it Wmy concern.-

Be it known that I, HENRY A. J OHNSON, a

' citizen of the United States, residing at Providenoe, in the State of Rhode Island, have invented a new and useful Improvement in Talking-Machines, of which the following is a specification.

My invention relates to an attachment which is adapted for use in that class of talking-machines in which the arm which carries the sounding-box and the stylus is adapted both for elevation and swinging movement; and it consists in an improved mechanism for raising the stylus from the record-plate and for simultaneously applying the brake to the record-supporting table.

It also consists in the improved construction of the brake, which serves to prevent the rotation of the table.

In the accompanying drawings, Figure 1 represents a side elevation of a talking-machine provided with my improvement. Fig. 2 represents a detail side view showing a modification whereby the improvement 's adapted to another style of machine. Fig. .2 represents a detail side view showing another modification. Fig. 2 re resents a top view of the circularly-curvec elevating means. Fig. 3 represents an enlarged axial section of the brake when the brake is in its disengaged position. Fig. 4 represents the same section when the brake is in engagement. Fig. 5 also represents the same section when the brake is in engagement. Fig. 6 represents a side view of the sliding bar of the brake. Fig. 7 represents a side view of the loose sleeve which is held upon the sliding bar of the brake. Fig. 8 represents an enlarged top view of the swinging arm which carries the swivel-jointed arm of the sounding-box and the stylus. Fig. 9 represents a side view of the same, showing the stylus in engagement with the record-plate and with the brake removed from its action upon the rotary table. Fig. 10 re resents the same side view, showing the sty us raised from the record-plate and the brake in action upon the edge of the table, the brake mechanism being shown in section. Figs. 11 and 12 are detail views of the mechanism for raising the stylus from the record-plate. Fig. 13 represents a top view of the cam-lever employed for hold- Fig. 14 represents an ing back the brake.

inner end viewoi the brake. Fig. 15 represents a top view of the connecting-rod by means of which the brake is operated.

In the drawings, Fig. 1, A re resents the base, which contains the motor by means of which the horizontal table B is rotated, and upon the table B is placed the record-plate C. The sounding-box D and stylus E are carried by the curved arm F, which is swivel-jointed to the outer end of the arm G, which latter arm is swivel-jointed to the fixed arm H. To the swivel end a of the arm F is secured the downwardly-extending arm I), the end of which is provided with the crank-pin 0. Between the ears d (1 at the rear of the fixed arm H is placed the cam e, which is operated by means of the knurled head f, the said cam being arranged to act against the end of the sliding bar g. Upon the pivot-stem 9', upon which the arm G turns, is placed the rod 7c, provided with the slot Z, which embraces the said pivot-stem j and is provided with the hooks m m, which when the said rod 7c is turned to one side, as shown in Fig. 12, engage with the head 'i of the sliding bar 9, and thus prevents the further lateral movement of the arm G, to which the rod 7c is attached. The forward position of the sliding bar 9 and the rod 7c is shown in Figs. 10 and 12, and the backward position in Figs. 9 and 11. The rod 7c is guided in the eye it, located at the under side of the arm G, and is provided at its forward end with the open fork 0, which is adapted to engage with the crank-pin c of the arm I), which serves to raise the arm F. The stylus E is to be raised to the position shown in Fig. 10 by turning the cam e until the pro jection p of the said arm strikes against the end of the sliding bar and is allowed to fall to the record-plate O by turning the cam e to the position shown in Fig. 9. The sliding bar q of the brake is loosely held in the tuber, which is secured to the base A. The said tube is provided with the cap .9, which is held thereon by means of a screw-thread, and the rod t, by means of which connection is made with the slidin bar (1 of the brake, is located under the rod and provided with a slot to, which embraces the pivot-stem The slotted end of the rod t is acted upon by the end of the sliding bar 9, which is actuated by means of the cam e. The forward end of the rod 25 is not attached to the sliding bar of the brake, but loosely enters the opening 25 in the end of the brake-bar and is provided with a screw-thread and a nut '2), which nut serves to control the degree of pressure exerted by the brake upon the periphery of the rotary table B. The sliding bar g of the brake is provided with the fixed collar w and with the loose sleeve m, the said sleeve being provided with the pin y, projecting through the slot 2 at the under side of the tube 1 and engaging with the cam a, by means of which the said sleeve may be moved back against the forward action of the spiral spring I), and between the collar w and the forward end of the tube 1" is placed the spiral spring 0. Now when it is desired to simultaneously raise the stylus E from the record-plate C and apply the brake the cam a is to be kept in the position shown in Fi 4 to hold the sleeve x in its backward position, thus allowing the spiral spring 0 to carry the sliding bar 9 of the brake and the rod 1? back to the position shown in Figs. 1 and 3, and when it is desired to operate the brake independently of the cam e the said cam is to be so set that the loose sleeve a: will be allowed to come forward, so as to rest against the collar w, as shown in Fig. 5, and then the spring 1) being stronger than the spring 0 will serve to cause the forward movement of the sliding bar g of the brake whenever the pin y of the sleeve 00 is released from the backward action of the cam a.

.A modification is shown in Fig. 2 in which the arm J, which carries the sounding-box and the stylus, is jointed for movement both horizontally and vertically, and in this case the rod 7c forms a link between joint (1 at the under side of the arm J and the joint 6 of the slotted plate f, so that upon turning the knurled'head f the brake will be applied and the arm J raised simultaneously.

Another modification is shown in Fig. 2 in which the sliding bar 9 is provided with a slot 9, adapted to receive the guiding-pin h, and is also provided with the circularly-curved edge '5, which acts directly upon the boss y" of the swivel-jointed gravitating arm K, a corresponding curved surface i being shown upon the rod k in Fig. 12, and in this construction the connection between the swiveljointed arm and the lifting means will be maintained, and the arm may be carried to one side without materially changing its elevation during such movement.

I claim as my invention- 1. In a talking-machine, the combination of a horizontal rotating table, a swivel-j ointed gravitating arm which carries the soundingbox and the stylus, and a spring-released brake for stopping the rotation of the table,

\ with means for raising the gravitating arm of the sounding-box and stylus, and simultaneously applying the brake against the action of its spring.

2. In a talking-machine, the combination of ahorizontal rotating table, a swivel-jointed gravitating arm which carries the soundingbox and the stylus, and a spring-released brake for stopping the rotation of the table, with means which when moved in one direction will cause the simultaneous raising of the gravitating arm of the sounding-box and stylus and the application of the brake, and when moved in the opposite direction will allow the simultaneous downward movement of the gravitating arm of the sounding-box and stylus and the releasing action of the spring of the brake.

3. In a talking-machine, the combination of a horizontal rotating table, a swivel-j ointed gravitating arm which carries the sounding box and the stylus, and the brake for stopping the rotation of the table, with a connectingrod, the movement of which in one direction will cause the upward movement of the gravitating arm, and in the other will allow the downward movement of the same, the springreleased brake, the connecting-rod, the movement of which in one direction will cause the brake to engage with the rotating table, and in the opposite direction will allow the spring of the brake to cause the release of the table, and means for operating the said rods simultaneously.

4. In a talking-machine, the combination of a rotating table, a swivel-jointed gravitating arm which carries the sounding-box and stylus, the brake for stopping the rotation of the table, the rod, the movement of which in one direction will cause the upward movement' of the gravitating arm and in the other will allow the downward movement of the same, the spring-released brake, the connecting-rod, the movement of which in one direction will cause the brake to engage with the rotating table and in the opposite direction will allow the spring of the brake to cause the release of the table, with the sliding bar, and the cam for operating the same, whereby the said rods may be operated simultaneously.

5. In a talking-machine, the combination of the arm swivel-jointed for horizontal movement, the arm swivel-jointed for vertical movement and carrying the sounding-box and the stylus, and the arm extending downward from the swivel-joint of the said vertically-moving arm, with the rod connected with the horizontally-moving arm and provided at its end with the open fork adapted for engagement with the said downwardlyextending arm, and also for allowing the full backward movement of the arm which carries the sounding-box and the stylus.

6. In a talking-machine, the combination said arm may be turned to one side Without materially changing its elevation 0r disturbing its connection with the elevating means.

HENRY A. JOHNSON.

Witnesses:

SOCRATES SCHOLFIELD, DAVID H. ADAMSON.

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