US1556704A - Diaphragm for mechanical horns - Google Patents
Diaphragm for mechanical horns Download PDFInfo
- Publication number
- US1556704A US1556704A US558150A US55815022A US1556704A US 1556704 A US1556704 A US 1556704A US 558150 A US558150 A US 558150A US 55815022 A US55815022 A US 55815022A US 1556704 A US1556704 A US 1556704A
- Authority
- US
- United States
- Prior art keywords
- diaphragm
- horns
- cam
- mechanical
- shank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
- G10K9/20—Sounding members
Definitions
- the armature shaft concentric with the diaphragm naturally locates the teeth of tlhe cam at a distance from 'ihragrn, yet for the diavarious reasons it is desirable to have the wear piece riveted at the center of the diaphragm.
- the wear piece to the 2 of: the above menit has been proposed to use of suitarea and to provide it with a contact element located on a lateral PlOlECiLOH which overhangs the diaphragm. push has cause applied on the overhanging nephew which acts as a lever. While ln such an arrangement, the cam a noticeable tilting resultant becontact this action tends to "fatigue the metal and crack the dia 'ihragin,
- the overhung construction can be made enough to compare very phragms ot' the type durable favorably with diain which the cam thrusts are delivered directly downward on the center of the wear piece.
- vCihe construction whereby suits may be accomplished may the above re be more fully understood from the tollowing description thin, fine quality, spring clamping member "the shank t by an amount 1922. SeriaLNo. 558,150.
- FIG. 1 is a face view or the diaphragm and wear piece embodying my invention.
- Fig. 2 is a section on the line 9W2, Fig. l.
- Fig. 3 is a section on the line 3-3, Fig. 1, showing the wear piece in elevation.
- the diaphragm 1 is of steel, usually not less than four inches .in diameter, and preterably between five and sit; inches in dianr eter, by say .02 to .025 inch in thickness although it will be understood that certain features oi the lnvention are of importance, independently of the dimensions.
- the cam engaging member is preferably a drop forging which has been case hardened. As shown in the drawings, it comprises the 2 which is circular, the integral-shank 4 which is preferably square, and the contact member 3 which is an cecentric projection formed so as to have an inclined contact surface 8 leading up to a ridge 3, which extends substantially radial to the axis of the clamping member 2. This brings the said ridge opposite and parallel. to the radially disposed tips of the cam projections on the rotary cam (not shown). Besides being eccentric-this projection is thrust out of the plane of the clamping nieinher 2 to produce the desired overhang wit respect to the diaphragm. Preferably a strengthening rib 3 's rear edge of the pidijection in the drop forging operation. I
- the integral shank 4 is square and is riveted through a square aperture 6 in th center of the diaphragm 1, through a cushion Washer 7 which is preferably made of the same spring; steel as the diaphragm an through a front washer 8 which is heavy termed on the free i enough to maintain its shape and firmly clamp the diaphragm when the shank 4 is riveted therethrough as shown at 9.
- a cushion Washer 7 which is preferably made of the same spring; steel as the diaphragm an through a front washer 8 which is heavy termed on the free i enough to maintain its shape and firmly clamp the diaphragm when the shank 4 is riveted therethrough as shown at 9.
- the formation ot :1 fillet 5 at the base of the shank 4t is practically unavoidable.
- the square shank 4 it the squared hole 6 with great accuracy.
Description
Oct 13, v
4 m H 7 v m ,7 m r 6, J; M W Wy M W221i 1172112 McBarmm W. H. M BARRQN DIQPHRAGM FOR MECHANICAL HORNS Filed May 5, 1922 winners H. meanness,
0E ORANGE,
NEW JERSEY, ESSIG'NOR Tl) KLAXQN GOMPA'EY,
A. CDEEORATION OF DELAWARE.
DZA'E'HRAGM FOR MECHANICAL HORNE.
Application filed Kay 3,
To all whom it may concern.-
Be it known that l, ,VVILLXAM non, a citizen of the United States, a .lent of Orange,in State of New Jersey, have invented new and useful Improvements i phragnis for Mechanical Horns, following is a specification.
H. MoBAnn'd resithe county of Essex and certain 11 Diaof which the My present invention is particularly designed'for use in connection with horns of the type in which there is a rotary cam mounted directly on the armature shaft of an electric motor, the projections or teeth on the rain being arranged to contact wear piece on a steel diaphragm of thinness and elasticity.
with a. suitable While 'rapable of use in connection with other horns, it was primarily devised for use the wherein the armature perpendicular with the diaphragm shaft is at the center thereof, for instance in Fig. 2 of Hutclnson Patent No. 1,145,839, and also in the application of Serial No. ens, filed May 3, 1922.
Having Duncan A. McConnel,
the armature shaft concentric with the diaphragm naturally locates the teeth of tlhe cam at a distance from 'ihragrn, yet for the diavarious reasons it is desirable to have the wear piece riveted at the center of the diaphragm. As it is not desirable to' limit the diameter of the cam nor clamping elements the wear piece to the 2 of: the above menit has been proposed to use of suitarea and to provide it with a contact element located on a lateral PlOlECiLOH which overhangs the diaphragm. push has cause applied on the overhanging niece which acts as a lever. While ln such an arrangement, the cam a noticeable tilting resultant becontact this action tends to "fatigue the metal and crack the dia 'ihragin,
l have discovered tlbat for diaphragzms which sutiicicntly flexible, and.
with the structure herein described, the overhung" construction can be made enough to compare very phragms ot' the type durable favorably with diain which the cam thrusts are delivered directly downward on the center of the wear piece. vCihe construction whereby suits may be accomplished may the above re be more fully understood from the tollowing description thin, fine quality, spring clamping member "the shank t by an amount 1922. SeriaLNo. 558,150.
in connection with accompanying drawings, in which Fig. 1 is a face view or the diaphragm and wear piece embodying my invention.
Fig. 2 is a section on the line 9W2, Fig. l.
Fig. 3 is a section on the line 3-3, Fig. 1, showing the wear piece in elevation.
In these drawings, the diaphragm 1 is of steel, usually not less than four inches .in diameter, and preterably between five and sit; inches in dianr eter, by say .02 to .025 inch in thickness although it will be understood that certain features oi the lnvention are of importance, independently of the dimensions.
The cam engaging member is preferably a drop forging which has been case hardened. As shown in the drawings, it comprises the 2 which is circular, the integral-shank 4 which is preferably square, and the contact member 3 which is an cecentric projection formed so as to have an inclined contact surface 8 leading up to a ridge 3, which extends substantially radial to the axis of the clamping member 2. This brings the said ridge opposite and parallel. to the radially disposed tips of the cam projections on the rotary cam (not shown). Besides being eccentric-this projection is thrust out of the plane of the clamping nieinher 2 to produce the desired overhang wit respect to the diaphragm. Preferably a strengthening rib 3 's rear edge of the pidijection in the drop forging operation. I
The integral shank 4 is square and is riveted through a square aperture 6 in th center of the diaphragm 1, through a cushion Washer 7 which is preferably made of the same spring; steel as the diaphragm an through a front washer 8 which is heavy termed on the free i enough to maintain its shape and firmly clamp the diaphragm when the shank 4 is riveted therethrough as shown at 9. When made by forging or casting: or other plastic method, the formation ot :1 fillet 5 at the base of the shank 4t is practically unavoidable. Atthe same time it is highly desirable the the square shank 4 it the squared hole 6 with great accuracy. Hence I prefer to employ the above-described spring steel washer 7 and to make its internal diameter larger than equal to or slight- 1y greater then the base diameter of said
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US558150A US1556704A (en) | 1922-05-03 | 1922-05-03 | Diaphragm for mechanical horns |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US558150A US1556704A (en) | 1922-05-03 | 1922-05-03 | Diaphragm for mechanical horns |
Publications (1)
Publication Number | Publication Date |
---|---|
US1556704A true US1556704A (en) | 1925-10-13 |
Family
ID=24228425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US558150A Expired - Lifetime US1556704A (en) | 1922-05-03 | 1922-05-03 | Diaphragm for mechanical horns |
Country Status (1)
Country | Link |
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US (1) | US1556704A (en) |
-
1922
- 1922-05-03 US US558150A patent/US1556704A/en not_active Expired - Lifetime
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