US1099458A - Graphophone and talking-machine. - Google Patents

Description

K. A. MAURER;

GBAPHOPHONE [LNQTALKING M AOHIZNEL IAPPLICATE-OH FILED M AY'3, 1910 1,099,458,

Patented June 9 73 5 'UniTED STATES PATENT oFFIoE.

KARL A. 'MAURER, OF LEIPZIG, GERMANY, ASSIGNOR TO PDLYPHON-MUSIKWERKE AKTIENGESELLSGHAFT. OF WAHREN. NEAR L'EIPZIG. GERMANY.

GRAPHOPHONE AND TALKING-MACHINE.

Application filed May 3.

' -l- .is a side useful Im )rovements in Graohonhones top.

resident of Leipzig, Kingdom of Saxony and and 'lalking-Machines of which the following is a specification.

llhis i nventi ui has reference to talking machines, phon-ographs. graphophones and the like. which are provided with a born for the inrrpose of amplifying the sound. These sound amplifying horns occupy more space Germany v have invented certain new -.than the talking machine itself. If however the sound amplifying horn is located within the casing of the machine then the amplification of the sound is greatly reduced because the o ening of the horn like 'ise must he greatly reduced to find room within the casing. These eontrivances further have the disadvantage that the sound is strongly conveyed solely in the direction in which the horn is placed.

It is the purpose of thepresent' invention to avoid the above descrilgied deficiencies and to produce a talking machine with a sound amplifier within the casing that conveys sound in all directions. This has been primaril attained by arranging the ainpli fving device within 'the casing so that its opening is at the top and by placing the motor or part of s: me within or before the opening of said amplifier.

The invention is illustrated in the accompan ving drawing in which:

Figure 1. 11111 strates in side elevation partly in section a sound recording and reproduc-- the record supportis shown to be arranged opening of the amplifier. Fig. elevation. and Fig. 5. a top plan view showing a modified form of sound anr plifving device.

Similarcharacters of reference denote like parts in allthe figures. I

The casino A of the apparatus shown in Figs. 1 and 2 is a simple h x which is open at tht top. The sound ainpliiiving device B is arranged within the casing A in such manner that its opening likewise is at the before the i The motor f for the record support D is Patented June 9, 191 4.

1910. Serial No. 559,170.

secured to a special bridge E so that it reaches into the sound amplifying device when the bridge E is placed horizontally across the casing A. The motor may be di- 'rectly mounted on the bridge E or first-so cured to a special plate as desired Tn the form of apparatus illustrated in l igs. l and 2 the motor 0 is surrounded by a sei'ui-spherieal casing F. double purpose. first it prevents dust: from entering and second, it exposes only smooth surfaces to the sound waves produced in new placed on the record support D and the motor started then the sound is reproduced in the usual manner by means of the sound box H communicating with the arm I and the tube K conveying thus the sound into the amplifier. The large hollow body of the amplifier increases the Strength of the sound,an'd' as the amplifier is open at the top the sound is conveyed uniformly in all directions.

It is immaterial whether the tube Keennects with the bottom of the amplifier B or on the side. In order to haveno protru'd ing parts on the casing A the downward portion of the tube'K may be mounted within the casing A as shown in Figs. 4 and-5. It is further immaterial for the purpose of the'present invention whether the motor is placed below the bridge E or above the same. In the latter case the motor will he in front of the opening of the amplifying device B. The motor may also be mounted on the bottom of the amplifier without bridge or it may be otherwise suitably supported within the amplifier leaving then the opening of the same completely free.

Fig. 3. illustrates a talking machine in which the motor C is located below the aux-- plifying device within the casing A so that only the shaft L passes through said device and the record support. D mounted thereon is above the opening of the amplifier hen the shaft L passes through the center of the amplifying device it ma also be supported in a second bearing in the special plate above mentioned in relation to Figs. 1 and 2. The shaft L i -suitablv surrounded with a guide hearing or elonga ted bushing M which exends in to theamplifier. At the upper end of the shaft right abo we theopening of the amplifier the record support I) is secured which is adapted toreceive theirecordl The This answers a v the amplifying device B. If a record on ioe ' that it may be conveniently reached by the sound arm I. In this instance the tube K connects with the amplifier on the side of the same to allow of moui'iting the motor can trally below as shown in Fig. 3. The amplifier-may also be mounted on a flange M oi the bushing M independent from the motor. The amplifier may also be entirely dispensed with if the casing A is constructed so that it possesses suflicient' resonance. The motor may further be arranged alongside the amplifier and its motion transmitted to the shaft L in suitable manner.

The modified form illustrated in Figs. 4 and 5 comprises a casing A'for the talking machine consisting of a four sided box which is open'at the tCp. Within the casing there is an} amplifier of octagonal form so arranged that on the four sides N, O, P, Q, thereare mounted inclined sounding boards or iralls N 0 P Q}, which are adapted to convey the sound in an upward direction. Between these four inclined walls there are the vertical, walls R, S, T, U. However all these straight walls or part of them are cut out forming incisions V. The motor C may be mounted below the bridge E and the record support D above the same. The reproduced sound is conveyed in this construction through the sound arm I in a downward direction and enters through the opening W in the inclined wall;O into the amplifier from where it is conveyed in an upward direction and also through openings V oi the side Walls of the casing.

The abovedescribedarrangement of the amplifying device may be used for record plate machines as well as for cylindrical machines.

I claim as my invention:

1. In talking machines, the combination of a cabinet, asound amplifying horn inclosed therein and having its exit end upwardly directed, a motor inclosed in a casing "positioned in the exit end of said horn, a record support adapted to be rotated by said motor, and a reproducer adapted to operate upon a record carried by said support and connected to said horn, substantially as described.

2. In talking machines, the combination oi a sound amplifying horn, a motor inclosed in a casing, the said casing being positioned in the exit portion of said horn so as to form an annular sound conduit therewith, a record support adapted to be rotated by said motor, and a reproducer adapted to operate upon a record carried by said support and connected to said horn, substantially as de scribed.

3. In talking machines, the combination of a cabinet, a sound amplifying horn inclosed therein and having its exit portion upwardly directed, a motor inclosed in a casing, the said casing being positioned in the exit portion of said horn so as to form an annular souiu'l'conduit therewith, a record support adapted to be rotated by said motor, and a reproducer adapted to operate upon a record carried by said support and connected to said horn, substantially describ d.

l. In a talking machine, the combination of an amplifying sound conveyor, of a rotary. record support, a. casing arranged to form with said conveyer an annular s and conduit, actuating means for said supp rt in said casing, and reproducing means commu- 'nicatin with said conve er and arran ed in operative relation with respect to said support, substantially as described.

5. In a talking machine. the combination oi an. amplifying sound conveyor, a rotary record support coaxial with the exit portion of said conveyer, a casingarrangcd coaxial with said support and arranged to form with the exit portion of said conveyor an annular sound conduit, actuating means for said support in said casing, and reproducing means communicating with said conveyer and arranged in operative relation with respect to said support, substantially as described. I

6. In a talking machine, the combination of an amplifying sound conrcyer having an upwardly directed exit portion, a rotary record support coaxial with said exit portion, a casing coaxial with said record support and arranged to form with said exit portion an annular sound conduit", actuating means for said support in said casing, and reproducing means communicating with said conveyor and arranged in operative relation with respect to said support, substantially as described.

K Signed at Leipzig, Germany, this 19th day of April, 1910.

KARL A. MAURE It.

lVitnesses:

-RUDOLPI-I Futons,

ALBERT Il. Monawn'rz.

Images