US162476A - Improvement in speaking-tubes - Google Patents
Improvement in speaking-tubes Download PDFInfo
- Publication number
- US162476A US162476A US162476DA US162476A US 162476 A US162476 A US 162476A US 162476D A US162476D A US 162476DA US 162476 A US162476 A US 162476A
- Authority
- US
- United States
- Prior art keywords
- speaking
- tubes
- tube
- improvement
- alarm
- 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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- 206010010254 Concussion Diseases 0.000 description 2
- 240000004658 Medicago sativa Species 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
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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
- G10K9/22—Mountings; Casings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F3/00—Landing stages for helicopters, e.g. located above buildings
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Prostheses (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Emergency Alarm Devices (AREA)
Description
B. HOWARD 8L J. BEADLE.
n -Speaking-Tube.
No. 162,476. l Patented Apr|27,1a75= UNITED STATES BENJAMIN HOWARD AND JESSE BEADLE, OF SHIGKSHNNY, PA.
IMPROVEMENT IN SPEAKING-TUBES.
Specification forming part of Letters Patent N0. 162,476, dated April 27, 1875;
application ltd April 2, 1875.
To all whom t may concern:
Be it known that we, BENJAMIN HOWARD and JESSE BEADLE, of Shickshinny, in the county ot' Luzerne and State ot' Pennsylvania, have invented certain new and useful Improvements in Alarm Attachments to Speakingrlubes; and we do hereby declare the following to be a full, clear, and exact description ot' the invention, such as will enable 0thers skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.
Uur invention relates to an improvement in alarm attachments to speaking-tubes; and it consists in attaching to the speaking-tube a cylinder and piston, by means of which the air contained inthe tube is suddenly forced up or down, as the case may be, which air pushes a globular valve against a hell or gong, thereby giving the alarm, as will be more fully described hereafter.
rlhe accompanying drawing represents our invention.
A represents a speaking-tube, and which extends in any direction desired. To the speaking-tubes are attached nloutlrpieces B, which are closed when not in use, by valves or otherwise, and opened by hand when wanted. At any place from whence communications are to be made is attached to the speaking-tube a cylinder, U, provided with a piston and a rod, D, which rod has a knob at its outer end and is to he operated by hand. This piston moves freely in the cylinder and returns to its position by its own weight after having been suddenly pushed upward. The effect produced by the sudden concussion of the air is extended throughout the length ot the tube. At the place to which the communication is directed, a globular valve, E, closes the tube, and this valve, when struck by the air is lifted from its seat and violently thrown up against the gong or bell F, secured to the upper end of the tube, immediately over its mouth. The alarm thus given may be repeated in rapid succession, the globular valve returning` to its seat by recoil and its own weight as suddenly as it was lifted from it. Instead of using the piston-rod D to give the alarm, it may be done by blowing into the tube by bellows or with the mouth.
Having thus described our invention, we claim- An alarm attachment for speaking-tubes, coi'isisting of the combination ot' the spealc ingtube A, cylinder C, piston-rod D, valve E, and bell or gong F, substantially as shown.
ln testimony that we claim the foregoing, we have hereunto set our hands this 29th day of March, 1375.
BENJAMIN HOWARD. JESSE BEADLE. E'Titnesses:
HARRISON BRIGHT, M. l). FowLER.
Publications (1)
Publication Number | Publication Date |
---|---|
US162476A true US162476A (en) | 1875-04-27 |
Family
ID=2231885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US162476D Expired - Lifetime US162476A (en) | Improvement in speaking-tubes |
Country Status (1)
Country | Link |
---|---|
US (1) | US162476A (en) |
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0
- US US162476D patent/US162476A/en not_active Expired - Lifetime
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