US970142A - Phonograph-reproducer. - Google Patents

Description

A. URBAHNS, PHONOGRAPH BBPRODUGER.

APPLIUATION FILED MAR* 17, 1910.

970,142. Patented'sept. 13,1910.

ArronNEl/s ANTHONY URBAHNS, 0F MINDEN, IOWA.

PHONOGRAPH-REPRODUCER.

Speeineaton of Letters Patent. Patented Sept. 13, 1910.

Application filed March 17, 1910. Serial No. 549,837. l f- To all whom it 'may concern:

Be it known that I, ANTHONY UnnAlINs, a citizen of the UnitedStates, and a resident of Minden,l inthe county of Pottawatt-amie and State ot lowa, have invented a new and l mproved lhonogra])li-Reproducer, of which thefollowingisa full, clear, and exact description.

My invention relates to phonograph reproducers, and has for its object to enable the loudnessot the sound to loe varied as may be desirable, `in view of the Size of the room in which the phonograph is operated, or in accordance with the character of the music or other matter played. For this purpose l have provided a certain novel construction ot' a variable connection between the 'vibrating diaphragm and the record-engaging point or jewel.

A specific embodiment ot' my invention is illustrated in the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicate corresponding parts in all the figures, and in which- Figure .l is a perspective View showing my improvement applied to thercproducer voit a Columbia cylinder' pl'ionograph; Fig. 2

is a sepa `atel view of the reproducer lever, with parts in section, to disclose my iinproved construction of this part; and Fig. 3 is a cross sect-ion on the line fl--l of Fig. 2,

'- showing also, in dotted lines, the ulcrum of the reproducer lever.

In its general features, the reproducerl` shown in Fig. 1 does not (litter from the one now "sed with Columbia cylinder phonographs.

A. is a diaphragm suitably secured in a easing B provided with a sound conduit C, and a forked post D, carrying a YFulcrum pin E, is secured to an arm F fulcrumed at F." and under the influence of a spring Gr. From the diaphragm A an operating link H extends through an opening F2 in the arln F.

bo far above described, thepgnts may be of any usua'l or approved cons't'uEtion.

My invention relates more particularly to the reproducer lever J, connected with the link lil at J. Thisflever, linstead of simply swingingon the fulcruni E, asin the ordinary construction, is also '-.apable ot' sliding lengthwise, thereby varying the distance between the 'fulcrum F. and the reproducing point or jewel K vadapted to engage the sound record, and also varying 'the distance between the said fulcrum and the operating connection-at J. For instance, the 'ulcrum pin IC passes through a transverse slot or recess J2, the extent of which, measured lengthwise ot' the lever J, is considerably greater than the width or diameter of the fulcrum pin, and the slot is preferably made with a plurality ot notches J in one of its longitudinal walls (the lower wall is shown), a bevel-'faced projection, such as J, separating the adjacent notches. -The latter form seats for the 'fulcrum `pin,' which is forced into one notch or the other, and held therein, b v a springL engaging the fulcrum pin E on the side opposite the notches. T his spring may extend lengthwise within a longlfildinal recess J", intersecting the transverse recess- J2, the 'ends ot' the spring being secured to the. lever. By pressing down on the lever J'. the fulcrum pin E will be caused to enter -the portion of the slot J 2 above the projection J4, and then the lever can be'slitl lengthwise on the fulcruin pin to bring the latter into registry with one or the other notch J3, the spring L bringing the pin E into such notch as soon as the lever J is released. A simple pull on the lever lengthwise, will also shift it for adjustment. I am thus enabled to vary the leverage oi the lever J, and this also varies the pressure exerted on the diaphragm A by the movements ot the lever J and ot' the operating link ll, and therefore the louduess of the sounds emit.- ted. The sounds will be loudest when the tnlcrum pin E is nearest the reproducing point K.

Loud sounds will bc. emitted when the-in-"- strument is played in large halls or in the openair, also for certain classes of music, such as dances or band music, while soft sounds are better' adapted to songs and to entertainment in the home.

lVhile l have shown two notches .l'*."t'tie number could be varied, of course, and other modifications may be made without departing from the nature of my invention, as set forth in the claims.

Having thus described my invention, l claim as new and desire lto secure by Letters Patent:

l. A reprodncer for talking machines, provided with a viln'ating diallhragm. a reproducing lever operatively conlwctcd with the diaphragm and adapted to engage the sound record, said lever being provided With an elongated transverse recess notched at dii-ferent distances from its end, a fulcrum pin extending through said recess and adapted to become seated in said notches, and a spring carried by the lever and engaging the fulcrum pin on the side opposite said notches.

'2. A reproducer for talking machines, provided with a vibrating diaphragm, a reproducing lever operatively connected with the diaphragm and adapted to engage the sound record, said lever being provided with an elongated transverse recessnotched at dierent distances from its en d, and with a longitudinal recess intersecting said transverse recess, a fulcrum pin ,extending through said transversev recess and adapted to become' seated in said notches, and a spring carried by the lever and extending lengthwise of the lever Within its longitu` Adinal recess, said spring engaging thefulcrum pin onthe side o posite to said notches.

3. A reproduoer ,fiir talking machines, provided with a vibrating diaphragm, a reproducing lever operatively connected With the diaphragm and adaptedl to engage the sound record, said lever being provided with an elongated transverse recess notched at different distance from its end, a ulcrum pin extending through said recess and adapted to` become seated in said notches,

i"the diaphragm and adapted to engage the name to this specification in the .through said recess and adapted to become seated in said notches, andl elasticmeans for` holding notches.

5. A reproducer for talking machines,` providedwith' a vibrating diaphragfma reproducing lever operatively connected with the fulcrum pins in any one of said sound record, said lever being providd'with an elongated transverse recess, a fulcruin pin extending through said recess, and elastic means for pressing-said pin against one of the Walls of the recess and preventing accidental longitudinal movement ofthe lever.

En testimony whereof I have signed my presence of two subscribing Witnesses.

, ANTHONY URBAHNS.

Witnessesz.

JOHN Gerona, JoHN ALBREcH'r.

...4 als;

Images