US1097972A - Phonograph-reproducer. - Google Patents

Description

A. F. GALL. PHONOGRAPH REPRODUGER.

APPLICATION FILED SEPT. 11, 1909.

1 9973972. Patented May 26, 1914.

90 iii 257%? fi W W ture is circular, and of a diameter very. slightly greater than that of the pin 10 I TENT ADOLPH F. GALL, OF WEST ORANGE, NE'W JERSEY, ASSIGNOR TO NEVJ JERSEY PATENT COMPANY, OF WEST ORANGE, NE'W JERSEY, A CORPORATION OF NEW JERSEY.

To all whom it may concern:

Be it known that I, Anonrrr F. GALL, a citizen of the United States, and a resident of West Orange, in the county of Essex and State of New Jersey, have made certain new and useful Improvements in Phonograph- Reproducers, of which the following is 'a de- Scription.

My invention relates to phonograph reproducers of the Edison type in which a floating weight is pivoted to the body of the reproducer, and the stylus is carried by. a lever pivoted to the floating weight, and connected to a reproducer diaphragm or other means for producing sound vibrations.

My invention has for its object the mounting of the said lever in such a way that. the stylus shall be free to move up and down and also horizontally or laterally, butwhich mounting will not permit the stylus lever to move longitudinally or to turn about a longitudinal axis, whereby the stylus responds very readily to irregularities in the record groove, is adapted to track a. record groove having a pitch as small as one two-hundredth of an inch or less, and produces at all times a loud and clear reproduction.

Reference is hereby made to the accompanying drawing of which- Figure 1 is a central vertical section of a phonograph reproducer constructed in accordance with my invention; Fig. 2 is a section on line 22 of Fig. 1; Figs. 3-, 4t and 5 aresimilar views of modifications, and Fig. 6 is a section on line 66 of Fig. 5.

' The reproducer shown comprises the'usual body 1, within which the diaphragm 2 is clamped between gaskets 3 by means of the usual clamping nut 4. The floating weight 5 is pivoted at 6 to a block 7 having a shank 8 threaded within the body 1. The floating weight is provided with a pair of depending lugs 9-within one of which is threaded a horizontal headed pin or screw 10. Upon the latter is pivoted the stylus lever 11, one end of which is provided with a socket 12 within which is fixed a stylus 13 in proper position to engage the groove of the sound record. The pivot portion-of the lever is of enlarged cross section and isapextured as shown at 14: to receive the pin 10. This aperwhereby any appreciable longitudinal movement of the lever is prevented. The ma-' Specification of Letters Patent.

Application filed September 11, 1909.

Patented May 26, 1914.

Serial No. 517,336.

said slots is substantially the same as the so diameter of that portion of the pin 10 which passes through the aperture 14. p

The structure of Fig. 3 is similar to that of F1gs. 1 and 2, but di'liers therefrom in that the" lever 11 is not provided with any 55 aperture at its pivot portion and there are a pair of pins or screws 1O situated opposite and in alinement with each other, the lever being formed with slots 15 the height of which is substantially the same as the di ameter of the pins 10", longitudinal move ment of the lever being prevented by reason of theengageinent of the ends of the pins 10* with the inner surfaces of the slots 15.

Fig. i differs from Fig. 3 in that the ends of the pins 10 do not engage the body of the lever 11. In this structure the pivot portion of the leveivis spherical and engages spherical recesses 17 formed in the lugs 9".

The ins 10 are threaded in lug's 9 and engage in slots in the'pivot portion of the lever, similar to slots 15 shown in Fig. 3.

In the structure of Figs. 5 and 6, the lever 11 is provided with a transverse pin 18 rigid therewith and which engages slots 19 8 formed in the lugs 9, longitudinal move ment of the lever being prevented by reason of the engagement of the ends of the pin 13 with the lnner'walls of said slots.

Having now described my invention, what Iclaim1s: I

1. In a phonograph reproducer, the combination of a body, a floating weight carried thereby, a horizontal pin carried by the floating weight in fixed relation thereto, and

a stylus lever rotatable about said pin in two planes to permit the stylus to have up and down and lateral movement, said stylus lever being provided with means adapted to coact with said pin for restraining said lever against movement longitudipally thereof andv against turning on a longitudinal axis, substantially as set forth.

2. In a phonograph reproducer, the combination of a body, a floating weight carried thereby, a horizontal pin carried by the floating weight, a stylus lever having a horizontal opening through which the pin passes "and ofsubstantially the same diameter as the pin, in a plane midway between the two side surfaces, at which point the opening is circular in cross section, the opening being widened at each side of this point to form slots having horizontal bearing surfaces above and below the pin, substantially as set forth.

3. In a phonograph reproducer, the combination of a body, a diaphragm therein, afloating weight carried by said body, a horizontal pin carried by said Weight, and a stylus lever p votally mounted upon said pin and connected to said diaphragm, said lever having a horizontal opening therethrough through which the pin passes, a portion of said opening of substantial length being of substantially the same height throughout as the diameter of the pin, said opening having a circular cross section in a plane midway between the two side surfaces of the lever, the opening extending to each side of said plane as a horizontal V- shaped slot having its apex in said plane, substantially as set forth.

4. In a phonograph reproducer, a stylus lever having a tapered horizontal slot formed therein and a horizontally arranged circular opening communicating with said slot and adapted to receive a pivot pin, a portion of said slot of substantial length being of substantially the' same height throughout as the diameter of said pivot pin, substantially as set forth.

5. In a phonograph reproducer, a stylus lever having horizontal V-shaped slots on each side thereof with their apices inwardly directed and an opening connecting said slots situated at the apices thereof, said slots and opening being adapted to receive a pivot in and being of substantially the same height throughout as the diameter of said pivot pin, substantially as set forth.

6. In a phonograph reproducer, the combination of a body, a floating weight carried thereby, a stylus, a stylus lever and a pivotal mounting therefor which comprises a pin and slot connection, said pin being rigidly mounted on said weight and forming a sup port for said lever, and said slot being so formed as to permit up and down and lateral movement of thestylus, but to restrain said lever against movement in a direction longitudinally thereof and against turning on a longitudinal axis, substantially as set forth.

7. In a phonograph rcproducer, the combination of a body, a floating weight carried thereby, a stylus, a stylus lever, and a mounting providing for movement of the stylus lover with respect to the floating weight, said mounting comprising a pin and slot connection, said pin forming a support for said lever and said slot being so shaped as to permit up and down and lateral movement of the stylus but to restrain said lever against movement. in a direction longitudinally thereof and against turning on a longitudinal axis, substantially as described.

8.- In a phonograph reproducer, a stylus lever provided with a horizontal opening adapted to receive a pivot pin, said opening H being so formed as to permit up and down and lateral movement of the stylus but to coact with. said pivot pin to restrain said lever against movement in a direction longitudinally thereof and against turning on a longitudinal axis, substantially as described This specification signed and witnessed this 7th day of September, 1909.

ADOLIH F. GALL. Witnesses DELOS HOLDEN, JOHN M. Caxrmnn.

Copies of this patent may be obtained for live cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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