US405330A - Necticut - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

H. V. SMITH.

STEAM WHISTLE.

No. 405,330. Patented June 18; 1889. p

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STEAM WHISTLE.

No. 405,330. Patented June 18 1889.

sses UNITED STATES PATENT OFFICE.

HENRY V. SMITH, OF BIRMINGHAM, ASSIGNOR, BY MESNE ASSIGNMENTS,

OF ONE-HALF TO EDVARD G. BURNHAM, OF BRIDGEPORT, CON- NECTICUT.

STEAM-WHISTLE.

SPECIFICATION forming part of Letters Patent No. 405,330, dated J 11110 18, 1889.

Application filed September 14, 1888.

T0 at whom it may concern.-

Be it known that I, HENRY V. SMITH, a citizen of the United States, residing at Birmingham, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Steam-lrVhistle-s; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same,

My invention relates to certain new and useful improvements in steam-whistles, and has for its object to provide a device ofthis description which shall be simple in construction and exceedingly economical in the use of steam, and whereby very pleasing and harmonious sound-effects can be produced; and with these ends in view my invention consists in certain details of construction and combination of elements, such as will be hereinafter. fully set forth, and then recited in the claims.

In order that such as are skilled in the art to which my invention appertains may fully understand my improved whistle and how to make and use the same, I will now describe it in detail, reference being had to the accompanying drawings, which form a part of this specification, and in which- Figure 1 is an elevation of the complete whistle; Fig. 2, a central vertical section through the valve, steam-chamber, and exits; Fig. 3, a detail plan view of the top of the valve-castin g in which the exits for the steam are drilled; and Fig. 4 a transverse section through the whistle-tubes and stem, taken at line X X of Fig. 1.

Like reference-numbers denote the same parts in all the figures of the drawings.

1 is the valve-casting, in which is arranged any su1table valve 2, adapted to be controlled by lever 3.

Serial No. 285,401. 'No model.)

at an angle of some forty-five degrees, for the purpose presently explained.

7 is a stem,whose lower threaded extremity 8 is secured in the central threaded opening in the top of the valve-casting, as seen at Fig. 2.

9 is an outwardly-extended flange upon the central stem,which,when the latter is screwed down into position, is, as to its face, substantially parallel with the surface 6 of the casting. The space between these two opposed surfaces forms an annular steamway, whose plane is outward at about an angle of fortyfive degrees, as indicated by the dotted lines a in Figs. 1 and 2.

The upper end of the stem 7 is threaded, as seen at 10. 11 are the whistle-tubes, which, in any convenient number-say three, four, five, or sixare firmly secured together by brackets 12 13, the lower of which is plain and adapted to fit snugly on the stem,and the upper of which is threaded and adapted to engage the threads at the upper portion of the stem. By this means the whistles may be readily raised and lowered upon the stem so as to bring their open ends into any desired position relative to the outwardly-projected steam-jet. A check-nut lat is threaded upon the upper end of the stem, and, by engagement with the top surface of the upper bracket, secures the whistle in any desired position of vertical adjustment.

In this my invention the steam is projected outward across the mouths of the tubes, as indicated by the dotted lines a, so that the sound is produced by the swift passage of the jet across the extremity of the tube. I find that by using the steam in this manner a greater volume of sound is produced with less expenditure of steam than by the old method, since theresonant area of the several tubes is greater than that of any single tube which could be blown by the same jet; and, furthermore, that I can, if desired, by variations in the length of the tubes, produce a combination of different notes to form a chime.

I am awarethat a chime-whistle formed by subdivisions in a singleresonant bell has been produced, and I do not wish to be understood as laying claim to such construction, the gist of my invention lying in the operation of a plurality of resonant tubes by a single jet of steam, which is projected across their open ends, as distinguished from its projection into said tubes.

I am further aware that a single bell having a steam-jet located beneath the mouth thereof and axial therewith is shown in the patent to one Reippel, No. 166,479 but this differs from my device in this, that only one tube or bell can be actuated by the jet,while in my whistle a plurality of tubes may be used and the steam pass outward across the mouth of each of the tubes, thereby producing increased tone with an economical expenditure of steam.

I claim 1. The combination, with the group of resonant tubes, of the centrally-placed stem about which said tubes are grouped and whereon they are supported, a steamway axial with the stem and eccentric toward each and every one of the said tubes, and a valve whereby the said steamway is controlled, substantially as set forth.

2. In a steam-whistle, the combination, with the central supporting-stem and the steamway concentric with and having its line of throw outwardly from said stem, of the group of resonant tubes, the brackets in which said tubes are supported and whereby they are secured to said stem and are adjustable vertically relative thereto, and the Valve 1' or conand the check-nut threaded upon the top of the stem and abutting against the upper bracket, substantially as set forth.

4. The combination, with the stem threaded at its upper extremity, of the steamway at the bottom end of the stem, the plurality of resonant tubes, and the two brackets wherein they are supported, the lower bracket being plain and the upper bracket threaded for engagem ent with the stem, whereby the Whistle-tubes may be adjusted, as desired, relative to the stem and held in their adjusted position, substantially as set forth.

I11 testimony whereof I affix my signature in presence of two witnesses. I

HENRY V. SMITH.

\Vitn esses:

S. II. HUBBARD, \VM. J. TANNER.

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