US651402A - Horn for phonographs. - Google Patents

Description

No. 65l,402. Patented lune I2, I900.

F. W. WEAVER. I

HORN FOB PHONOGBAPH'S.

A lication filed Aug. 18, 1899.)

(N0 llodei.)

WITNESSES:

INVENTOR WWW/ WW I Wfiazven W 3, .d/M 6 UNITED STATES PATENT OFFICE.

FLOYD w. WEAVER, OFPI'IILADELPHIA, PENNSYLVANIA.

HORN FOR PHONOGRAPHS.

SPECIFICATION forming part of Letters Patent No. 651,402, dated June 12, 1900.

Applioatioh filed August 18, 1899. Serial No. 727,642. (No modelJ To all whom it may concern:

Be it known that I, FLOYD W. WEAVER, a citizen of the United States of America, and a resident of Philadelphia, in the county of Philadelphia, State of Pennsylvania, have invented certain new and useful Improvements in Sound-Amplifyi n g Horns for Sound-Reproducing Machines, of which the following is a specification.

My invention relates to new and useful improvements in sound-amplifying horns for graphophones or sound reproducing machines; audit consists in a particularconstruc tion and arrangement of the horn and in means for supporting and guiding the same, as will be hereinafter more particularly set .out.

Referring to the accompanying drawings, Figure 1 represents a perspective "iew of a sound-reproducing machine having an amplifying-horn constructed and arranged in accordance with my invention. Fig. 2 illustrates a detached side elevation of the horn, and Fig. 3 shows a cross-section on the line 3 3 of Fig. 2.

Referring to the reference-letters of the drawings, A represents the body of an ordinary sound recording and reproducing instrument.

B is the rotatable record; 0, the sound-box D, the mechanism for feeding the sound-box, and E is the sound-amplifying horn. The horn E is designed with a view to producing great clearness and strength of tone, and hence is connected directly to the sound-box, thus eliminating the use of flexible joints or rubber connections which have a tendency to cause much trouble and annoyance as well as mar the character of tone of the instrument.

In carrying out my invention I form the horn in the shape of a long .tapered cylinder or cone E, a bell E and a looped portion E which latter is provided with a metallic coupling E adapted to engage a stem 6 projecting from the sound-box of the sound-reproducing machine. By making the horn of this shape it is capable of giving a greater volume of tone, is rendered more compact, and is entirely out of the way of the person operating the machine, and as the horn is coupled (lia much stronger reproduction of the record is obtained.

At ornear the center of gravity of the horn is mounted a grooved roller F, supported in the bearings f, which are secured to the horn.

Directly below the roller and supported from the bed-plate of the sound-reproducing machine is a track G, which receives nearly if not quite the entire-weight of the horn and forms a smooth bearing and guiding surface for the same as the horn is carried backward and forward by the feeding mechanism of the sound-reproducing machine.

It will be understood that I do not limit myself to the exact construction shown and described in this specification, except where the same is specifically pointed out in the claims, as other modifications of rnyinvention may be made without departing from the scope thereof.

Having described my invention, What I claim, and desire to secure by Letters Patent,

1. A sound-amplifying horn comprising a conical body portion havinga flaring portion or bell at one end, and a loop formed at the opposite end, and a roller mounted upon said horn adapted to support and guide the same.

2. A sound-amplifying horn comprising a conical body portion provided at one end with a loop-shaped portion of gradually-decreasing diameter, and at the opposite end with an extended opening or bell and means as a roller secured to the horn for supporting and carrying the same substantially as specified.

3. A sound-amplifying horn comprising a conical body terminating at one end in a loop and at the other end an extended opening or bell, a downwardly-curved coupling at the terminus of the looped portion and a supporting-roller secured to the body portion of the horn.

4.. In combination with asound-reproducing machine, a track mounted thereon, a horn arranged above the machine, and a roller on the horn adapted to said track.

reotly to the machine by a metallic coupling 5. In combination with a sound-reproducing machine or graphophone, a rail or track mounted thereon, a horn arranged above the machine, having at one end an extended opening or bell and at the opposite end a Signed by me at Philadelphia, Pennsylgradually-decreasing portion in the form of Vania, this 16th day of August, 1899.

a. loop, the terminus of which is downwardly curved and adapted to engage the sound-box I of. the machine, and a roller mounted on the FLOYD 5 horn about midway between its ends and adapted to the rail or track substantially as specified.

Witnesses:

TALTER O. PUsEY, DAVID S. XVILLIAMS.

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