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Publication numberUS379608 A
Publication typeGrant
Publication dateMar 20, 1888
Filing dateDec 7, 1887
Publication numberUS 379608 A, US 379608A, US-A-379608, US379608 A, US379608A
InventorsGeoege P. Eoyee
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 379608 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

(No Model.)


No. 379,608. l Patented Mar. 20, 1888.

um n NME,




SPECIFICATION forming part of Letters Patent No. 379,608, dated March 20, 1888.

V Application filed December '1,1887'. Serial No. 257,209. (No model.)

To all whom, it may concern.-

` Be it known that LGEOEGE F. ROYER, a citizen of the United States, residing at Wilkes- Barr, in the county of Luzerne and State of Pennsylvania, have invented certain new and useful Improvements in SteanrMufflers for Steam or Gas Under Pressure; and I do hereby declare the following to be a full, clear, and eX- act 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 is an improvement in steammuffiers; and my said invention consists in certain details of construction and arrangement of the parts composing the same, as and for the purposes as will be hereinafter more particularly described and form the subjectmatter of the annexed claim.

rIhe obj ect of my invention is to render noiseless the escape of steam, gas, Src., under pressure from steam-boilers, gas-engines, Src.; and to this end I proceed as follows, reference being had to the accompanying drawings for a better understanding of the details of construe tion of the parts, and in which drawings- Figure 1 represents a view in elevation of an Ashton safety-valve supplied with' a steammufler constructed according to my invention, and Fig. 2 represents a vertical central sectional elevation of the muffler,sh0wing the internal construction and arrangement of the same.

A designates the case or shell of the muffler, which is of an inverted-cone shape,and is supplied with a screw end,A, for connection with the escape-port of a safety-valve, as shown in Fig. l, or to any other suitable position upon the engine or boiler. This case or shell, as just stated, is of an inverted-cone shape, and within the interior thereof, near the bottom end, is formed a conical seat, c, just above which project lugs a. At the top of this case a shoulder or circumferential seat, c2, is formed, and through the top edge thereof project a series of screws, d, for the purposes as will presently appear.

Resting upon the conical seat a, and beneath the lugs c at the bottom of the caseA,is aperforated plate or grating, B, which has a beveled circumferential edge, b, to adapt itto closely t the seat a, and a slot, b', in its rim to enable it to be inserted past the lugs c. At the top of the case,upon the seat a2,is a second perforated plate or grating, O, which is secured in position by a series of screws,d,pass ing through the top edge of the case and into the periphery ofthegrate O. Centrally through the gratings B and C passes a bolt, D, having a nut, d,whereby the two grates are strengthened at their central portion and their displacement from the case prevented. Between the gratings B and O is placed the material for disintegrating and rendering the escaping steangas noiseless, and for this materialv small pebbles or round marbles are preferred, which are closely packed between the said grate ings and completely fill the intervening spacca` thereof.

The volume of steam, gas, &c., escaping under pressure from the boiler or engine in passing throughthe mufiier is broken up or disintegrated into numerous fragments which are diverted back and. forth around the pebbles, and thereby rendered noiseless before it escapes into the atmosphere.

rIhe cone-shaped case permits a large area of the pebbles to be presented to the steam, and by reason of the construction of the parts herein shown a simple and effective muiiler is provided, not liable to get injured or out of repair,and that may be rcadil y taken apart for renewal, cleaning, Src.

Having thus fully described my invention, what I claim is as follows, viz:

In a steam-niuflier, the combinatiomwith the inverted-coneshaped case A, formed with the seat a2, beveled seata, and lugs a', the circular grating B, with bevel edge I), fitting upon the seat c and beneath the lugs a', and formed with the slot b', circular grating C, of larger diameter than the one B,resting upon the seat c2, and secured to said case by screws d, bolt D, passing centrally through the gratings B and O, and securing the same together, and interposed filling of pebbles, as described, for 95 the purposes specified.


In presence of- H. R. GLACE, O. R. ROYER, S. J. STEAUss.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2963899 *Mar 6, 1956Dec 13, 1960Parsons C A & Co LtdSonic gas analysers
US4219100 *Feb 16, 1979Aug 26, 1980Wyse Harold GMuffler for exhaust air or other gas
Cooperative ClassificationF01N1/082