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
Application number
Inventor
Hasselblatt Erwin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication of GB191002234A publication Critical patent/GB191002234A/en
Application filed by Individual filed Critical Individual
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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.
GB191002234D 1909-12-13 1910-01-28 Improvements in Acoustic Signalling Apparatus. Expired - Lifetime GB191002234A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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