GB191002234A - Improvements in Acoustic Signalling Apparatus. - Google Patents
Improvements in Acoustic Signalling Apparatus.Info
- Publication number
- GB191002234A GB191002234A GB191002234DA GB191002234A GB 191002234 A GB191002234 A GB 191002234A GB 191002234D A GB191002234D A GB 191002234DA GB 191002234 A GB191002234 A GB 191002234A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reeds
- horns
- sounded
- operated
- bulb
- 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
Links
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
- G10K9/02—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated
- G10K9/04—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated by compressed gases, e.g. compressed air
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Reciprocating Pumps (AREA)
Abstract
2234. Hasselblatt, E. Dec. 13, 1909, [Convention date]. Void. [Published under Section 91 of the Act.] Horns, construction of; fluid supply for horns. -Comprises an acoustic signalling-device for fire-ships, horns, and the like having two or more reeds in a common case which are arranged to be sounded at optional intervals positively in succession. In the form shown in Fig. 1 the reeds e are sounded alternately by the fluid supplied by the pistons i, which are operated from a revolving shaft n through cranks, eccentrics, or the like. In the modification shown in Fig. 2, the reeds are attached on the flat side of a half-cylinder o and are sounded by an india-rubber bulb r, one set of reeds being operated by the air forced out of the bulb on its compression, and the other set by.the air drawn in during its re-filling. The two sets of reeds are arranged to be of slightly different pitch.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE191002234X | 1909-12-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB191002234A true GB191002234A (en) |
Family
ID=32521559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB191002234D Expired - Lifetime GB191002234A (en) | 1909-12-13 | 1910-01-28 | Improvements in Acoustic Signalling Apparatus. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB191002234A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5271124A (en) * | 1990-04-30 | 1993-12-21 | Sandell Anthony C | Hinge suitable for use in a roof window assembly |
US5497534A (en) * | 1993-01-14 | 1996-03-12 | Sub-Zero Freezer Company, Inc. | Double arm hinge for a refrigerator door |
US6175991B1 (en) * | 1998-09-14 | 2001-01-23 | Ford Global Technologies, Inc. | Articulated door hinge for an automotive vehicle |
-
1910
- 1910-01-28 GB GB191002234D patent/GB191002234A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5271124A (en) * | 1990-04-30 | 1993-12-21 | Sandell Anthony C | Hinge suitable for use in a roof window assembly |
US5497534A (en) * | 1993-01-14 | 1996-03-12 | Sub-Zero Freezer Company, Inc. | Double arm hinge for a refrigerator door |
US6175991B1 (en) * | 1998-09-14 | 2001-01-23 | Ford Global Technologies, Inc. | Articulated door hinge for an automotive vehicle |
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