US1463361A - Signal sound instrument - Google Patents
Signal sound instrument Download PDFInfo
- Publication number
- US1463361A US1463361A US432163A US43216320A US1463361A US 1463361 A US1463361 A US 1463361A US 432163 A US432163 A US 432163A US 43216320 A US43216320 A US 43216320A US 1463361 A US1463361 A US 1463361A
- Authority
- US
- United States
- Prior art keywords
- casing
- diaphragm
- instrument
- signal sound
- sound instrument
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q5/00—Arrangement or adaptation of acoustic signal devices
Definitions
- Fig. l is a sectional side elevation of the same
- Fig. 2 is a rear View, with the rear cover omitted,
- Fig. 3 is a sectional plan viewof a detail
- Fig. 4c is a fragmentary rear view of another detail, I
- Fig. 5 is a sectional plan view of the latter.
- the instrument comprises a casing 0 composed of two easily detachable halves a and b, which are dusttightly held together by means of screws or the like (not illustrated).
- a support (Z 18 pivotally arranged on a bolt 6 and adapted to be ad-.
- a regulating-screw f carrying nuts 9 which embrace the upper end of said support.
- the latter carries in ball-bearings h, 2' a step-shaft 7c,which is centrally located in said support and in said casing.
- the shaft it carries a fixed concentric disc Z which is provided. with two segmental grooves m (Fig. 3), in which pro ecting.
- clappers n are loosely and pivotally mounted at 0.
- the rotation of shaft 70 produced by an electromotor (indicated by armature r and collector C, Figs. 1 and 2) takes place in the direction of arrow (Fig.3).
- the clappers n are projected to outside said grooves by centrifugal force.
- the casing half a forms the detachable rear cover of the instrument, to allow an easy access to the interior of the same.
- the casing half 6 carries an outer flange a", over which engages the flange .9 of a sounding funnel t, a brass diaphragm being interposed between said fianges 1'. and 8 through V 'sion' when the shaft is rotates.
- I Said diaphragm carries on its rear sides I fixed pro ection 10, which is so located that it is struck by thelclappersin rapid succession- Consemesses quently, a'striking sound is producedby the vibration of the'diaphragm, which is first collected in the'rear compartment t of the sounding funnel t and then projected to outside the funnel; the diaphragm being provided. with a concentric annular projection w, whereby the sound is considerably increased.
- the funnelt may be cast-in one with thecasing half 6, the effect being a sharp accentuated'sound like an explosion and of highest. velocity.
- a casing consisting of two halves, a sounding funnel in front of said casing, a brass diaphragm'interposed between said casing and said sounding funnel, a rear projection on I said diaphragm, means co-acting with said.
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electromechanical Clocks (AREA)
Description
July- 31, 1923;
' 154631.361 P. GEORGI ET AL v I SIGNAL scum) INSTRUMENT Filed Dec. 20, 1920' lifq. a
t3 sir 'srarss earns r series.
PAUL GEOEG-I AND ROBERT GEOEGI, OF LEIFZIG-GOHLTS, GERIKANY.
SIGNAL SOUND INSTRUMENT.
Application filed December 20, 1920. Serial No. 432,163.
Fig. l is a sectional side elevation of the same,
Fig. 2 is a rear View, with the rear cover omitted,
Fig. 3 is a sectional plan viewof a detail,
Fig. 4c is a fragmentary rear view of another detail, I
Fig. 5 is a sectional plan view of the latter.
The instrument. comprises a casing 0 composed of two easily detachable halves a and b, which are dusttightly held together by means of screws or the like (not illustrated). In said casing, a support (Z 18 pivotally arranged on a bolt 6 and adapted to be ad-.
justed by means of a regulating-screw f carrying nuts 9 which embrace the upper end of said support. The latter carries in ball-bearings h, 2' a step-shaft 7c,which is centrally located in said support and in said casing.
The shaft it carries a fixed concentric disc Z which is provided. with two segmental grooves m (Fig. 3), in which pro ecting.
clappers n are loosely and pivotally mounted at 0. The rotation of shaft 70 produced by an electromotor (indicated by armature r and collector C, Figs. 1 and 2) takes place in the direction of arrow (Fig.3). By rotation of shaft 7c, the clappers n are projected to outside said grooves by centrifugal force.
The casing half a. forms the detachable rear cover of the instrument, to allow an easy access to the interior of the same. The casing half 6 carries an outer flange a", over which engages the flange .9 of a sounding funnel t, a brass diaphragm being interposed between said fianges 1'. and 8 through V 'sion' when the shaft is rotates.
the medium of washers a, while screws '2), w
serveto hold said flanges r, 8 together.
I Said diaphragm carries on its rear sides I fixed pro ection 10, which is so located that it is struck by thelclappersin rapid succes- Consemesses quently, a'striking sound is producedby the vibration of the'diaphragm, which is first collected in the'rear compartment t of the sounding funnel t and then projected to outside the funnel; the diaphragm being provided. with a concentric annular projection w, whereby the sound is considerably increased.
By the adjustability of the upper end the support d, the distance between shaft k and diaphragm and thus between the pro 'jection of the latter and the clappers, can be regulated at will. v I r A further characteristic feature of [the present invention consists in the fact that the casing half 6 forms at its upper part a re sounding board y with a central opening 2 therein, the rear projection 12 of the diaphragm extending into said opening where it is struck by the olappers "a (Figs. 4 and 5).. By this means, the sound produced cannot be projected 'in rearward direction into the interior of the instrument but in forward direction through the funnel a only, whereby it is considerably increased.
Obviously, the funnelt may be cast-in one with thecasing half 6, the effect being a sharp accentuated'sound like an explosion and of highest. velocity. What we claim, is: In an electric sounding instrument for motor-cars and the 1ike,in combination, a casing consisting of two halves, a sounding funnel in front of said casing, a brass diaphragm'interposed between said casing and said sounding funnel, a rear projection on I said diaphragm, means co-acting with said. pro ection toloperate said diaphragm and located within said casing, one of said'casing halves forming a resounding bottom for said diaphragm and having a central opening therein through which extendssaidrear projection, substantially as set forth.
' PAUL GEGRGI.
- ROBERTGEORGT.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US432163A US1463361A (en) | 1920-12-20 | 1920-12-20 | Signal sound instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US432163A US1463361A (en) | 1920-12-20 | 1920-12-20 | Signal sound instrument |
Publications (1)
Publication Number | Publication Date |
---|---|
US1463361A true US1463361A (en) | 1923-07-31 |
Family
ID=23715014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US432163A Expired - Lifetime US1463361A (en) | 1920-12-20 | 1920-12-20 | Signal sound instrument |
Country Status (1)
Country | Link |
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US (1) | US1463361A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3570446A (en) * | 1968-09-23 | 1971-03-16 | Emdeko Distributing Inc | Fire detection alarm means |
-
1920
- 1920-12-20 US US432163A patent/US1463361A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3570446A (en) * | 1968-09-23 | 1971-03-16 | Emdeko Distributing Inc | Fire detection alarm means |
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