US935773A - Phonograph-machine. - Google Patents

Description

T. J. BLANCH.

PHONOGRAPE MACHINE.

APPTJIO'ATION FILED JAN 7, 1909.

Patenteii out. 5, 1909.

burrs s rains ra rnnr orrion THOMAS J. BLANCH, 0 F HIGHLANDEALLS, NEW YORK.

PHQNOGRAPH-MAGHINE.

To all whom m5 may concern:

'Be it known that I, THOMAS J. BLANCH, a citizen of the United States, residing in Highland Falls,*Orange county, New York,

have invented certain new and useful Improvements in Phonograph-Machines; and I do hereby declare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to characters of reference marked thereon, which form a or speakers arranged therein may be quickly and readily thrown into, and the other out'of, workingposition relatively to the'record. i

It being predicated that there are now in use two general kinds of records, to wit, one having one number of threads to the inch, say 100, and the other having another number of threads to the inch, say 200, and that these two kinds of records require distinct kinds of styluses, the advantages gained in associating the two diiferent speakers or reproducers in a single structure so that the change from the one to the other may be accomplished quickly and conveniently will be apparent.

In the accompanyingdrawings, in which my invention is full illustrated, Figure 1 is a front View of phonograph machine constructed in accordance with this invention; Fig. 2 is a side view thereof; Fig. 3 shows the pivoted reproducer support in plan; and, Fig. 4 is a plan of the end of the arm of the carriage or slide.

a in the drawings designates an Edison phonograph machine, 6 being its base, 0 its mandrel having its shaft (Z 'jo'urnaled in the brackets e, f the cylindrical record, 9 the carriage pivoted and also movable laterally on the guide h, a the rotating feed-screw journaled in brackets c and j (the feed-screw being adapted to be engaged by the arm Zr of the carriage when the latter is lowered to its extreme or working limit), Z a change speed transmission mechanism connecting the shaft d with the screw 2 and m its con Specification of Letters Patent.

{ trolling lever, and n and 0 the belt and pulley for transmitting power to shaft (Z; p designates the auxiliary carriage guide. The arm 9 of the carriage is or may be constructed substantially as such part is -now commonly constructed, except at the end thereofI provide a substantially circular table or bearing 7" having a screw-hole 8 formed centrally therein with its axis lying approximately in a radius fromthe axis of the guide 71, which, as usual, is parallel with the mandrel shaft; said bearing or table has at the back thereof, integral with the arm, an arc-shaped abutment 25 formed concentric with the bearing and having the side thereof angle with reference to the face of the bearing, thereby producing an overhang 6. Against this bearing contacts the bearing portion a of the reproducer supporting member v, comprising said bearing portion and the open or annular arms to extending in directions at right angles to each other from the bearing portion. The bearing portion is formed with an under face a) adapted to lie in square contact with the hearing or table of arm 9 and it has a hole 3 which receives supporting member may be firmly secured in screw as a pivot. The bearing portion a has an arc-shaped peripheral portion of the same radius as the overhang t, such portion (1) being beveled so as to contact squarely with the inner inclined face of the overhang. The arms '10 are formed with shoulders 2 adapted to contact with the shoulders 3 formed at the ends of the abutment t. v

The arms w are adapted to receive the therein by the set-screws 5, said speakers having different types of styluses so that either of the records referred to may be used in the machine when desired. These speak ers or reproducers are preferably provided with so-called tail-weights 6 controlling their stylus arms 7. Each arm has an extension 8 carrying a longitudinally movable detent 9,which when pressed in rests 011 the auxiliary guide and supports the carriage at the front, and which when drawn out allows the carriage to fall so that the extension bears directly against said guide in the working position of the carriage. I preferably inscribe on each of the arms to suitable mark- Pa'tented (Dot. 5, 1909.

Application filed January '7, 1909. Serial No. 471,147.

speakers or reproducers t which may be held adjoining the bearing cut back atan acute a screw 2 having a milled head whereby the either of its two limits of motion on the such as 41-minute and 2-minute so that the operator can see at a glance that the proper stylus for the record at that time on the mandrel is in position. The speed-con- 5 trolling lever m also has adjoining it markings of a similar import.

In use, it will be understood that'the re-' producer support is provided with repro-. ducers having the two different kinds of styluses, as indicated. If a record of the four-minute kind is placed on the mandrel, the controlling lever m is moved to the 156m"- minute position and member 1) isshifted to bring the arm marked et-minute or otherwise squarely in vertical disposition whereby the reproducer of that arm is in proper alinement with the record While the reproducer of the other arm is entirely out of position; at this time the shoulders 2 and 3 will be in contact. Ifa record of the twominute. kind is now placed on the mandrel,

the controlling lever and. reproducer-slip their relation would, an undesirable alteration of the point ofcontact of the stylus with the record.

By. arranging the arms '11: of the member 1) at substantially right angles toeach other it is found that the tail-weights, are perfectly tree to act without the one which is for the time being idle interfering with the proper action of the other. It will be understood that anyother suitable form of device corresponding to the screw 2 may be employed in the place of such screw. Having thus fully described my invention, .What I claim and desire to secure byLetters Patent is: i 1. In a carriage for a reproducer or reproducers in a phonograph machine, the-combi- 5 nation of an arm, and a reproducer supporting member pivoted in said arm, said arm and the supporting member having an interlocking portion confining the supporting member against axial movement in the arm, 0 substantially as described. 2. In .a carriage for reproducers in a phogno'graph machine, the combination of an arm, and a reproducer supporting member I I having reproducer receiving portions off-set 5 with relation to each other, said member disturbance of the proper relative positions of these parts, effecting, as such change in was.

being pivoted in the arm, and the arm and the supporting member having an interlocking portion confining the supportmg member against axial movement in the arm, subthe seat thereof, said arm andthe supporting member having tongue-and-groove connection confining the supporting member against axial movement in the arm, substantially as described.

. 5. In a carriage for a reproducer or reproducers in a phonograph machine, the combination of an arm having a bearing seat at its free end, a reproducer supporting mem ber arranged in pivotal contact with,said seat, and a screw affording the pivotfor said member and clamping the same against the'seat, said arm and the supporting member having' tongue and groove connection confining the supporting member againstaxial movement in the arm, substantially as described.

6. In a carriage for a reproducer or reproducers in a phonograph machine, the combination of an arm having a bearing at its free end, and a reprodiicer supporting member having a bearing portion and pivoted to the arm with its bearing portion in .contact with the bearing of said arm, said bearcbncentric with the pivot of said member and said bearing having an overhang overly-- ing the concentric peripheral part of said bearing portion, substantially as described.

7 In a carriage for a reproducer or reproing portion having a part of its periphery duc'ers in a phonograph machine, the combination of an arm having a bearing formed with an overhang, and a reproducer sup porting member having a bearing portion and pivoted to the arm with its bearin portion incontact with the bearing of sai arm, said overhang and a part of the periphery of said bearing portion afiordingsurfaces contacting with each other and concentric with the pivotof said member, substantially as described. 8. In a carriage for a reproducer or reproducersin. a phonograph machine, the combination of an arm having a bearing at its free end, and a reproducer supporting member having a bearing portion and pivoted to the arm with its bearing portion in contact With the bearing of said arm, said bearing having an overhang overlying the bearing l portion of said member and forming a stop limiting the pivotal movement of said me1n ,be'r, substantially as described.

through approximately 90 degrees, said arm and the supporting member having interlocking portions confining the supporting i5 member against axial movement in the arm,

substantially as described.

In testimony, that I claim the foregoing, I

havehereunto set my hand this 5th day of January, 1909.

' THOMAS J. BLANCH. l/Vitnesses: v

J OHN V. STEWARD, WM. D. BELL.

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