US882785A - Talking-machine. - Google Patents

Description

.1v-0.8823185. PATENTED 1411.11.24, 1968.`

1T KRAMER TALKING MAcHINx-z. LLIVPLIUATIOI PIPE!) 00T. 'IQ 1907.

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INVENToR ATTORNEY No. 882,785. PATENTBD MAR.24,1908. T. KRAEMBR.

TALKING MACHINE.

APPLIGATION 1811.811 ooT.v;19o7.

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WITNESSES: Il?, INVENTOR E22 j v u 5%4/ 1 :C1/ I' @Q C., w L

BY yf- ATTORNEY UNITED STATES PATENT OFFICE.

THOMAS KRAEMER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR' TO HAWTHORNE d: SHEBLE MANUFACTURING COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORA- TION OF PENNSYLVANIA.

TALKING-moms.

Specication of Letters Patent.

Patented umh 24, 190s.

Application filed October 7,1907. Serial-No. 896,184.

To all whom. it may concern:

Be it knownthat I, THOMAS KRAEMER, a citizen of the United States, residing at Philadelphia, .in the county of Philadelphia and State of Pennsylvania, have invented a certain new and useful Improvement in Talking-Machines, of which the following is a specification.

AThis invention relates to talking machines and has reference more particularly to machines of the type em loying a cylindrical sound-record, a repro ucer movable across the same, and a tone-arm ivotally mounted at one end and having its ree end connected to the reproducer.

The object of the invention is to effect certain improvements in the construction of machines of'this type with respect particullarly to the devices for supporting the tonearm and amplifying-horn upon the box of the machine and the tubular connection between the free end of the tone-arm and the reproducer.

.The invention is illustrated in the accompanying drawings, in which Figure 1 is a sectional elevation of the machine, Fig. 2 is 1a top view of a portion of the same, Fig. 3 is a sectional detail view showing the tubular connection between the tone-arm and reproducer, and Fig. 4 is a'sectional detail view on line 4-4 of Fig. 3.

Referring to these drawings, 1 indicates the motor-box, having a top 2 and inclosing. a suitable motor which is connected in driving relation to the c lindrical record-support 3 which is mounted7 in suitable bearings above the top 2.v The shaft of the record-support 3 is extended and has a feed-screw 4 formed thereon. The reproducer-carriage 5 is mounted to slide axially of the record-su port upon afrod 6 mounted parallel to tie support 3 on one side thereof anda bar 7 on the opposite side thereof. A lever 8 is pivoted upon the carriage 5 and coacts with the suitable construction.

bar 7 to support the carriage in operative osition or raise it from that position so that the stylus of the re roducer is out of engagement with the cy indrioal record upon the support 3, the latter position ofthe parts be- -ing shown in Fig. 1.

The reproducer 9 is mounted in an opening in the carriage 5 and is of the usual or any The diaphragm Vof the reproducer is vibrated by a stylus carried .the edge of the box between t by the stylus-lever 10, and a short tubular member 11 extends upwardly from the chamber back of -the, diaphragm. The carria e of the reproduceris provided at its left env ,.7 as shown in Fig. 2, with'an arm which has a half-nut secured to its end in position to coact with the feed-screw 4 so as to move thereproducer-carriage across the record.

In order to support the amplifying-horn and the tone-arm, I rovide an arm 12 furnished with a hooked) portion 13 at one end thereof, this arm being adapted to extend across the top 2 of the motor-box with the hooked portion 13 extending about one edge of the top. For coaction with the other edge of the box, an angular (plate 14 is provided, which engages at'one e ge the under side of the edge of the'box and at the other ed e the plate 12. Screws 15 having knurled eads extend through openings in'the end of arm 12 and in plate 14, and these may be tightened upto cause the arm Vand plate .to grip em, so that the arm 12 is firmly secured to the top of the motor-box. A couplin -member 16 is secured to and rises from t 'e arm 12, and at its upper end has an openin formed therein. The upper end ofthe coup ing member 16 is formed to receive the small end of an amplifying-horn 17 and support the same in such manner` as to permit turning the horn upon the coupling member to any desired angular osition. Mounted upon the cou ling memer 16 adjacent to one end of t e opening therethroughfis a vertically disposed pin 18. The tone-arm 19 has a bracket 20 secured thereto, which carries a cross-head mounted in the bracket on horizontally disposed pivots. This bracket carries a sleeve 21 which fits over the pin 1S to hold the tone-arm in position with one end extending a short distance Within vthe o cning in the coupling member 16, in Whic posltion the tone-arm is in communication with the amplifyinghorn 17 through the opening in the couplmg member 16. This method of supporting the tone-arm permitsvof turning the same in any direction by the' cross-head turning on its horizontal pivots or the sleeve 21 turning upon the in 18, or both.

At its ree end, the tone-arm 19 is contracted to form a section 2'2 of comparatively small diameter, which section is curved to form a ninety-degree bend. This end of the metallic parts of tubular form so as to carry across the record,

the sound'from the reproducer to the tonearmrwith as little obstruction to the sound waves as possible, and this connection has suitable joints therein, so that the passage for the sound waves is preserved although the carriage of thereproducer-is moving in a straight line and the tone-arm is turning about a pivot.. This connection is illustrated in Figs. 2, 3 and 4. An angular tubular member 23 has one end split and formed of such diameter that it will lit closely over the tubular extension 11 on the reproducer. A clamping-ring 24 having a clamp-screw 25 is secured upon the end of this member, and when the end of the member is inserted over the tubular extension l l the screw 25 may be tightened to contract the split end of member 23 and cause it to grip the extension 11. The other end of the member 23 is connected to the end of the curved tubular extension 22 of the tone-arm by a tubular, metallic, connecting member 26. Each end of member 26 is curved to form a portion of a sphere, as shown in Figs. 2 and 3. These curved ends fit snugly within the ends of the members 22 and 23 vand are secured therein by screws 27 threaded into openings in the parts 22 and 23 and extending loosely through openings in the member 26. These openings in member 26 are preferably short slots so that the member 26 can not only turn freely about the axes of pins 27 but also has small ranges of movement on axes perpendicular to the axes of pins 27, While being heldin position by the pins. By reason of the provision for such movement of member 26 relative rto Veach` of the parts Which it connects on asubstam tially orizontal axis, the reproducer-carriage is free to be moved about the rod 6 as a plvot through the small range made necessary by irregularities in the surface of the sound-record and formoving intoand out of operative position. Having now described my invention, what I claim as new therein and desireto secure by Letters Patent is as follows 1. Thecombination with a talking machine having a motor-box, a holder for a cylindrical sound-record mounted above the top of .the box, means for rotating the holder, and a reproducer slidable in a straight line of a coupling member rising from the box, a horn supported thereby,- a tone-arm having one end pivotally connected to said member, and a flexible, tubular, connection consisting of metallic tube sections pivotally connected between the free end of said tone-arm and said reproducer, substantially as set forth. 2. The combination with a talking machine having a motor-box, a holder for a cylindrical sound-record mounted above the top of the box, means for rotating the holder, and a reproducer slidable in a straight line across the record, of a coupling member having an opening therethrough rising fromsaid box, a horn mounted thereon, a vertically disposed pin on said coupling mempin in communication with said horn through the opening in the coupling member, and a flexible, tubular connection consisting of metallic tube sections pivotally connected between the free end of said tone-arm and said re roducer, substantially as set forth.

3. T e combination with a talking machine having a motor-box, a holder for a cylindrical sound-record mounted above the top of the box, means for rotating the holder, and a reproducer slidable in a straight line across the record, of a coupling member secured to the box and rising therefrom, a horn supported thereby, a horizontally disposed tone-arm pivotally connected to the coupling member, a flexible tubular connection consisting of metallic tube-sections pivotally connected between the free end of the tone-arm and said reproducer, and means for clamping the end of one of said sections to said reproducer, substantially as set forth.

4. The combination with a talking machine having a motor-box, a holder for a cylindrical sound-record mounted above the top of the box, means for rotating the holder, and a reproducer slidable across the record, of a coupling member secured Yto the box and rising therefrom, a horn supported thereby,`

a tone-arm pivotally connected to the coupling member, a metallic tubular member secured to the reproducer, and a second metallic tubular member pivotally conber, a tone-arm pivotally mounted on said nected at its ends to one end of the firstnamed tubular member and to the free end of said tone-arm, substantially as set forth.

5. The combination with a talking machine having` a motor-box, a holder for a cylindrical sound-record mounted above the top ofthe box, means for rotating the holder, and a re roducer slidable across the record, of a coup ing member secured to the box and rising therefrom, a horn supported thereby, a tone-arm ling member, and a metallic tubular connection between the free end of the tone-arm and the reproducer, said connection having two universal joints therein, substantially as set forth.

This speciication signed and witnessed this 30 day of Sept., 1907.

e THOMAS KRAEMER.

pivotally connected to the coup-

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