US330242A - Chaeles l - Google Patents

Description

(No Model.)

C. L. RIDDER.

EXHAUST MUPPLE. No.,330,242. Patented Nov. l0, 1885.

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CHARLES L. KIDDER, OF NEV BRUNSWICK, NEW JERSEY, ASSIGNOR TO BERGMANN 8U CO., OF NEW YORK, N. Y.

EXHAUST-MUFFLE.

SPECIFICATION forming part of Letters Patent No. 330,242, dated November l0, 1885.

Application filed May 8, 1885. Serial No. 164,778.

T0 all whom, it may concern:

Beit known that I, CHARLES L. KIDDER, of New Brunswick, in the county of Middle sex and State of New Jersey, have invented a certain new and useful Improvement in Exhaust-Mufes for Steam-Engines, ofwhich the following is a specification.

The object of my invention is to muffie the exhaust of a steam-engine-that is to say, to do away with the noise and the vibration of the exhaust-pipe due to the emission of the exhaust-steam in short and violent jets as the valve opens and closes the exhaust port. The principle of operation of the devices heretofore employed for this purpose has been to break up the jets of steam into small quantities, which pass through the pipe with less violence than the powerful jets which issue from the engine. The apparatus necessary for this is complicated and expensive.

I make use of a different method, which is carried into effect by means of very simple and inexpensive devices.

This method consists in transforming the separate jets after they leave the engine into a continuous iow of steam, which passes gradually through the exhaust-pipe without causing it to vibrate and without making any noise. I accomplish this by the use of a compressionchamber into which the steam passes from the exhaust-port, and is compressed by its own force into an elastic cushion of vapor, while from such chamber there isa communication with the exhaust pipe or staclgt'hrough which such accumulated va por passes in a steady flow, not affected by the intermittent passage of the steam into the chamber.

l The accompanying drawing is a view, principally in section, of an apparatus embodying my invention.

A is a suitable chamber, which is divided (No model.)

longitudinally by a partition, c, into two passages, Z) c. Passage bis connected at d with the exhaust-port of the engine, and passage c at c with the exhaust-pipe, which extends to the stack or out into the air. The chamber A with its partition is preferably cast in one piece of iron.

B is the compression-chamber, which may be a piece of wrought-iron pipe closed at its upper end,f, and having a flange, g, at its lower end, by which it is secured to flange b on the open end of chamber A.

The operation of this apparatus is as follows, the arrows indicating the direction of the exhaust-steam: As the exhaust-port is opened, jets of steam pass through the passage c into the compression-chamber B and rise to the top thereof until the upper part of such chamber becomes iilled with compressed steam. Such steam is then by its own tension gradually and continuously forced out in a steady and continuous ow through the passage c and into the exhaust-pipe. Thus there is a constant, easy, noiseless passage of the steam.instead of an intermittent succession of violent puffs.

In an exhaust-muffle for steam-engines, the combination of the chamber divided bya partition into two passages, one of said passages being connected with the exhaust-port of the engine and the other with the exhaust pipe or stack, and the compression-chamber connected with both said passages, substantially as set forth.

This specification signed and witnessed this 6th day of May, 1885.

CHARLES L. KIDDER.

Vitnesses:

A. W. KIDDER, E. C. ROWLAND.

lit lis hereby certied that Letters Patent No. 330,242, granted November l0, 1885, upon the application of Charles L. Kidder, of New Brunswick, New Jersey, for an improvement in Exhaust Mndes)7 Was erroneously issued to Bergmann St Go..I their heirs or assigns, that said Letters Patent should have been issued to Bcrgmcmn' Company, its successors or assigns and that the grant of said Letters Patent should be read With this correction therein that the saine may conform to the record of the ease in the Patent Office. i

Signed, countersigned, and sealed this 17 th day of November, A.. D. 1885. I

H. L. MULDROW, Acting Secretary of thc latcrioi.

[SEAL] Gountersigned M. V. MONTGOMERY,

Commissioner of Patents.

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