US1245299A

US1245299A - Siren.

Info

Publication number: US1245299A
Application number: US18119517A
Authority: US
Inventors: Arthur C Woodward
Original assignee: A & F Brown Co
Current assignee: A & F Brown Co
Priority date: 1917-07-18
Filing date: 1917-07-18
Publication date: 1917-11-06
Anticipated expiration: 1934-11-06

Description

A. C. WOODWARD.

SIREN.

APPLICATION F1L1-1D1u1Y18.1917.

1.2&5,299. Patented Nov. 6, 1917.

2 SHEETS-SHEET l.

juve/Mofo A. C. WOODWARD.

SIREN.

APPLICATION HLED JULY 18. 1917.

1 ,245,299. Patented Nov. 6, 1917.

2 SHEETS-SHEET 2.

... WW W! UNTED STATES PATENT @Fl-HCE.

ARTHUR C. WOODWARD, OF CRANFORD, NEW JERSEY, ASSIGNOR T0 THE A. 8c F. BROWN COMPANY, 0F ELIZABETHPORT, NEW JERSEY, A CORPORATION OIE?A NEW JERSEY.

SIREN.

Specification 0f Letters Patent.

Patented Nov. 6,y v191-7.

To all whom it may concern Be it known that I, ARTHUR C. `WooDV WARD, a citizen of the United States, and a resident of Cranford, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Sirens, of which the following is a specification, reference being made to the accompanying drawings, forming a part thereof.

My invention relates particularly to sirens for use on submarines, the siren being so constructed and operated that it may immediatelybe in a condition for use as soon as the siren emerges above the surface of the water. Heretofore such submarine sirens have been incapable for use until the water has been removed or blown out by the compressed air used to operate same, which requires some time and is a great disadvantage, particularly in severe winter weather, since the sirenmechanism is likely tobecome immediately clogged bythe formation of ice upon exposure to the air as the submarine rises to the surface.

The principal object of my invention is, among other things, to provide a siren construction which shall automatically and immediately drain itself upon the emerging of the submarine from below the surface of the water, and will also automatically seal itself when the siren is operated by compressed air or other gas under pressure. The novel and improved construction of my siren is illustrated in its preferred embodimentsv in the accompanying drawings and is particularly pointed out in the following specification and appended claims.

.In the drawings, Figure 1 is av vertical sectional view taken on the line 1-1 of Figli;

Fig. 2 is a sectional plan View taken on the line 2--2 of Fig. 1;

Fig. 3 is a sectional plan view taken on the line B-Srof Fig. 1;'

Fig. 4 is a sectional plan view taken on the line oftFig. 1;

Fig.' 5 isa vvertical sectionalv View, partly in elevation of a :modifiedV form` 'of ymy invention; and

Fig. 6 is a sectional plan view taken on the .line 6---6 :of 5.v

r.Similar numerals refer to simi-larv :parte throughout -th'efsereral tierras Referring to the drawings, 7 indicates the outer hollow body of the siren having the passage 8 connected by a pipe to a source of compressed air, or other gas held in a suitable container under pressure, which air or gas operates the siren. Mounted on the upper rim of the outer body 7 is the depending cup-shaped casing 9, and theupwa-rdly extending' trumpet 10 secured to thel body 7 by the screws 11 as shown inv Fig. 1. EX tending upwardly from the center of the bottom 12 of thev casingl 9 is bolt 13 which is screwfthreaded into the bottom 12 as shown. and held rigidly in place by the nut 14; The bolt 13 carries the vsleeve 15 between the lower and upper washers 16 and 17 respectively, the washerk 17 being held in position on top of tliesleeve 15 by the n ut 18 as shown. Rotatablv mounted on the sleeve 15 is the siren 19 which is cup-shaped in formation and adapted to revolve within thev casing 9, the outercylindrical surface of the siren 19- coacting closely with the inner -surfaces of the casing 9 as show-n in Figs, 1. and 3. The lower portion of the -siren 19 is constructed with a series of slots 20, the intermediate sections 21 between the slots being tapered in opposite directions as shown in Fig. 2 so that the compressed air or vgas in passingy through the oppositely-disposed oblique ports 22 formed in the casi-ngt) may successively impinge against the sections 21 and then pass through the slots 20 thereby imparting a rapidly rotating movement 'toV the siren 19 in the direction of the arrow shown in Fig. 2. The upper part of the siren 19has a plurality of vertically elongated slots 23 which are adaptedV to produce the rapidlysucceeding sounds or tympanic shocks common in sirens as the compressed air or gas alternately passes through the port 24 and the successive slots 23 as the sireny Y1,9 israpidly rotated. A small drainage port 25l connects the bottom of the 'siren 19 with the interior bottom portion of the casing which in turn is connected tothe atmosphere by the pipe .26.

Upon the bottomY ofthe siren 119 l have secured two. automatic governors 2T which are. mounted and swing on the -pirobpus 28 aliziedv to the .bottom of the Silen- 119*r shown. Theggovernorsg? are so shapedns.:

, tri-.have :an .outer circular surface-.29ct the.

Aand ports 22, and whatever ivater 2 Lasagnea same Concentricity as the inner surface of the casing 9, as shown in Fig. 4. is the siren 19 revolves the governors 27 bear frictionally against the casing 9 through centrifugal force, thereby preventing the siren from rotating at an abnormal speed or velocity; it is obvious that the governors are self-acting and that the friction produced by their coaction with the casing- 9 increases with the velocity of the siren 19.

Mounted on the cross bar 30 transversely Within the lower part of the outer body 7, is the valve lever 3l, the longer and heavier' arm 32 having` the valve 33 adapted to normally rest on the valve seat 34 formed on the top of the passage S as shown in Fig. l. The shorter arm 35 carries the valve 36 adapted to coact with the port 37 formed on the top of the pipe 38 Which leads to the atmosphere. The construction is such that when the valve 33 is resting on its seat 34, the valve 3G is lifted from the port 37,'so that when the siren is out of operation, the interior of the body 7 is cutoff from the passage S but is open to the atmosphere through the pipe 38.

The operation of my improved siren is substantially as follows: 1When the subma- Vrine rises to the surface the Water that has collected in the hollow body 7, casing 9 and trumpet l0 at once drains downwardly through the slots 23 and port 24 into the holloiv body 7; also through the slots 2O remains in the bottom of the siren 19 passes through the port 25 and thence through the pipe 26. The Water in the body 7 rapidly passes through the pipe 38 and no Water can pass into the passage 8 and thence into the compressed air tanlfs since the valve 33 closes such passage. `When the operator wishes to blow the siren, the force of the compressed air or gas at once lifts the valve 33, thereby admitting the compressed air to the body 'i' to operate the siren, and simultaneously closing the valve 35 on the port 37 thereby shutting ofi' the hollow body 7 from the atmosphere.

In the modilied form shown in Figs. 5 and 6, the body 39 is so shaped as to have the passage 40 of a closed cylindrical formation Within which is reciprocated the valve member 42 having the port 43 adapted to register with the port 44 ivhen the valve 42 is in its upper position, thereby providing free communication between the compressed air pipe 45 and the interior of the body 39. Oppositely-disposed-to the port 44 is the port 46 leading to the atmosphere. rl`he lug 47 carried by the valve 42 and adapted to be reciprocated in the vertical groove 48 formed in the interior orn the passage always maintainsvthe ports 43 and 44 in proper vertical alinement. Then the siren is out of operation the valve is in its lower position, as

shown in Fig. 5, due to gravity, in which position the interior of the body 39 is in free communication Yith the atmosphere for drainage through the ports 44 and 4G. hen the siren is to be operated theI force of the compressed air or gas at onceraises the valve 42 to its upper or raised position in which the port 46 is closed and ports 43 and 44 are in register. This upper position is obviously maintained so long as the compressed air or gas passes upwardly from the pipe 45 into the interior of the body 39. In the appended claims the compressedl air or gas which operates my improved mechanism is broadly designated as a fluid.

lt will be understood that the siren construction herein shown and described may be variously `modilied and changed Without departing from the principle and scope of my invention, and it will be understood that the invention is not limited to any particular form except in so far as such limitations are set forth in the claims.

l claimas my invention s f y K l. The combination with a siren construction, of means for introducing compressed fluid through the siren, means for drainingthe siren, and coacting means in one position closing said compressed fluid means and opening said draining means and in a second position opening said compressed fluid means and closing said draining means.

2. The combination vvithva siren construction, of means 'for introducingcompressed fluid through the siren, means for draining the siren. and coacting leans in one position closingV said compressed fluid means and opening said draining means, and'in a second position opening said compressed fluid means and closing said draining means, said means in said second position being operable bv the introduction of said compressed fluid.

` 3, The combination with a siren construction. of means for introducing compressed fluid through the siren, means for draining the siren, and'coa'cting means in one position closing said compressed fluid means and opening said draining means, and in a second position opening said compressed fluid means andclosing said draining means. said means in said second position being operable and maintained only by the introduction of said compressed fluid. l

4. The combination with a siren construction, of means for introducing compressed lluid through the siren, means for draining the siren, and means, normally closing said compressed fluid means and opening said draining means` for closing said draining means when compressed fluid is introducedinto the siren.

5. The combination with a siren construction. of means for introducing compressed uid through the siren, means for drainingthe siren, and automatic means, normally closing said compressed fluid means and opening said draining means for closing' said draining means when compressed fluid is introduced into the siren.

6. The combination with a siren construction, of means for introducing compressed fluid through the siren, means for draining' the siren, and means, normally closing said compressed fluid means and opening said draining means, operable by said compressed fluid, for closing said draining means when compressed fluid is introduced into the siren.

'7. The combination with a siren construction, of' means for introducing compressed fluid vthrough the siren, means for draining the siren, and an automatic valve member, normally closing said compressed fluid means While maintaining the draining means open, for closing said draining means when the compressed fluid means is open.

ARTHUR C. W'OODWARD.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.