US813999A - Phonograph-horn. - Google Patents

Description

Wilma: 2a a. mzmw 74% PATE'NTED FEB 27, 1906. J. T. BROWN. PHONOGRAYH HORN;

APPLIOATIOK FILED HIRE 13, 1905 2 SHEEN-SHEET 1.

31 manic:-

1/6917765 Brown PATENTED PEB- 27, 1906.

J. T. BROWN.

PHONOGRAPH HORN.

uruouxon FILED JUNE 13, 1995.

2 SHEETS-SHEET 2.

. r manic r Jo mas 7T fir'o wn Wiinuqm if 6. Wm 54 JAMES T. BROWN, on NEW YORK, N. Y.

PHONOGRAPH-HORN.

No. a: 3,999.

Specification of Letters Patent.

Patented Feb. 27, 1906.

Original application filed December 24,1904,Berlal No. 239,241. Divided antl'thia application filed June 13, 1905. Serial No. 265,065-

To alt whom it may concern;-

Be it known that Ldnms- T. BROWN, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful lm rovements in Phono raph-Horns, of which t e following is a specification.

My invention relates to an improved horn especially adapted for use with phonographs or similar devices; and it consists in the constructions, combinations, and arrangements herein described. and claimed. Y My invention relates especially to the type of collapsible horn described in my pending application, Serial No. 239,241, filed December 24, 1904, of which this is a divisional applicat-ion.

An object of my invention is to provide a horn which will eliminate the harsh and metallic sounds occurring with existing types of horns when applied to sound-reproducing devices.

A further object of my invention is to provide a simple and compact formof collapsible horn which will be more durable than existing constructions and which can be conveniently adjusted and rigidly held in its expanded position.

Referring to the accompanying drawings, forming a part of this application, and in which similar reference -numerals indicate corresponding parts in the several views, Figure l is a side elevation illustrating one embodiment of my invention in its expanded osition. Fig. 2 is a sectional view on the inc 2 2 of Fig. 1. Fig. 3 is a sectional view, on a larger scale, taken on the line 3 3 of Fig. 2. Fig. 4 is a detail sectional view, on a lar or scale, illustrating a modification in which t e collapsible portion is provided with interior guard-rails. Fig. 5 is a detail sectional View, on a larger scale, taken on the line 5 5 of Fig. 4. Fig. 6 is a detail sectional view, on an enlarged scale. showing one form of latch for lockin together the n'iouthpiece and collapsib e trumpet portion of the horn. Fig. 7 is a side elevation, partly in section, showing the collapsible trumpetportiori of the horn in folded position. Fig. 8 is a sectional view illustrating a modification in which the mouthpiece is formed of leather. Fig. 9 is a side. elevation of the mouthpiece shown in Fig. 8; and Fig. 10 is a sectional view on the line 10 10 of Fig. 9, illustratin the manner of joining the leather blank the mouthpiece.

Referring especially to Figs. 1, 2, 3, 6, and 7 of the drawings, 1 indicates the still mouthpiece of a horn, which may be formed of any suitable metal and which is provided with a tapered annular portion 2 for ex ending the foldable ortion of the horn. 'l he mouthpiece is s own constructed with a closely-fitting lining 3, of leather, throughout its entire inner. surface.

The folding portion of the horn comprises a rigid sleeve 4, preferably formed of metal, to which an annular series of stiff ribs are piv oted at 6.

The sleeve 4 is provided with a tapered ennular flange 7 for limiting the outward swing of the ribs 5 about their pivots 6, the limitingfiange 7 of the sleeve and the ex ending portion 2 of the mouthpiece preferab ybeing co structed with approximately the same tapiir for securely clamping the ribs 5 tightly therebetween.

As shown especially in Fig. 3, the ribs 5 are constructed of strips of metal bent in U- shaped form for clamping the edges of suitable leather sections 8 therebetween,-thereby roviding a trum et-piece, with an inner surihce of leather t iroughout. This construction permits a supporting means, such as a chain 9, to be secured near the outer ends of the ribs for supporting the horn without unclue strain.

The mouth iece l carries a suitable latch for secure y locking the two portions of the horn to ether. As shown especiallvin Fig. 6, this etch maybe formed of resilient metal pivoted at 11 to the mouthpiece and provided with a lip 12 for engaging the end. of the sleeve 4 when the parts are assembled.

Figs. 4 and 5 illustrate a modified construction, in which guards or guard-rails 13 are clamped between the edges of the flexible leather sections and extend inwardly therefrom in position to be enga ed by the expanding tapered portion 2 0% the mouthpiece. These rails are for the purpose of preventing the flexible sections 8 from being worn or out between the, expanding portion 2 and the edges of the ribs 5. The rails are preferably formed of metal and are inclined, as shown in Fig. 4.

Fi s. 8, 9, and illustrate a modification,

in w 'ch the body portion 14 of the mouthpiece is formed of a leather blank, which is preferably glued together along a longitudinallap-joint 15. Such joint could, however, e secured by sewing, riveting, or other wellnown means.

A leather band 16 of taperin thickness is glued or secured about the hotly portion 14 in position to provideacylindrical seat for the sleeve 4 of the folding portion. This band is shown glued together along a longitudinal lap-joint 17, which is arranged out of registry with the joint of the body portion.

In all sound-reproducing machines as at present constructed there are produced typical harsh and metallic sounds, which are very noticeable and objectionable. Man unsuccessful experiments have been made oreliminating this reco nized defect by changes in construction of t e records, diaphragms, and

orns.

I have discovered that a horn provided with an inner surface of leather throughout will entirely eliminate the objectionable harsh and metallic sounds without decreasing the volume of sound produced. My invention provides such a construction in a convenient and inexpensive form, and it has proven highly efficient in use with various ty es of sound-reproducing devices.

aving thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A horn comprising a mouthpiece and a collapsible portion constructed with their inner surfaces of leather, said collapsible portion arranged to be expanded by engagement withsaid mouthpiece, and guards for protecting the leather inner surfaces during-such engagement, substantially as described.

. horn comprising a mouthpiece and a collapsible portion constructed with their inner surfaces of leather, said collapsible portion arranged to be ex ended and clamped in expanded position by engagement with said mouthpiece, and guards for protecting the leather inner surfaces durin such engagement, substantially as descri ed.

orn comprising a mouthpiece and a collapsible portion constructed with their inner surfaces of leather, said mouthpiece ar-- ranged to telesco e within the collapsible ortion for expan ing the latter, and guards For protecting the inner surfaces during such expansion, substantially as described.

4. A horn comprising a mouthpiece, a co]- lapsible portion, said mouthpiece and collapsible portion constructed with their inner surfaces of leather, means carried by said lmouthpiece for expanding the collapsible ortion, and guard-rails carried by said colapsible portion in position for engagement by said expanding means, substantially as described.

5. A horn comprising a mouthpiece, a collapsible portion, said mouthpiece and collapsible portion constructed with their inner surfaces of leather, means carried by said mouthpiece for expanding the collapsible portion, and inclined guard-rails carried by said collapsible portion in position for engagement by said expanding means, substantially as described.

6. A horn comprising a mouthpiece, a collapsible portion, means carried by said mouthpiece for expanding the collapsible portion, and rails carried by said collapsible portion in position for enga ement by said expanding means, substantially as described.

7. A horn comprising a mouthpiece, a collapsible portion, tapered means carried by said mouthpiece for expanding the collapsible ortion, and inclined rails carried by said colapsible portion in position for engagement by said expanding means, substantially as described.

In testimony whereof I afiix'my signature in presence of two witnesses.

JAMES T. BROWN.

Witnesses: FRANK CAPEK,

LILLIAS H. SHERMAN.

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