US115464A - Improvement in alarm-batons - Google Patents
Improvement in alarm-batons Download PDFInfo
- Publication number
- US115464A US115464A US115464DA US115464A US 115464 A US115464 A US 115464A US 115464D A US115464D A US 115464DA US 115464 A US115464 A US 115464A
- Authority
- US
- United States
- Prior art keywords
- alarm
- air
- piston
- whistle
- batons
- 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
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
Images
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
Definitions
- My present invention also relates to the rnhe object of my invention being to make a 1n re sim ple apparatus or alarm for hand use, or an instrument which, in connection with the handflag of a railway flag-man or the clubof apoliceman, occupies no additional room, or does ⁇ not increase the bulk nor materially increase the weight of such implements.
- the alarm ⁇ mechanism only an air-compressin g 1 pump (consisting of a tube, a piston, and a ⁇ piston rod or handle) and a whistle orvibrator.
- 'Ihe invention consists in an alarm or signal mechanism'composed of an air. tube and Vpiston, and on the air inlet or outlet end of the ytube a whistle or vibrator, which, by forcibly driving out the air (drawn into the tube by the retreat of the pistonyby forcing the piston forward, emits or produces a sharp ⁇ and loud sound.
- a denotes a'metaltube or pump-cylinder; b, a piston fitting andbplaying in said tube; c, a piston-rod, preferably made-of wood, and tting but sliding easily through the cap d; e, a handle on the end of said rod.
- a cross-piece, or partition, or seat, f havingperforations g and a nut-threaded central hole, h, into which is fastened the screw-threaded end of a spinldle, t', of a whistle, k, preferably formed like,
- the alarm is not only simple, inexpensive, and free from liability to get out of repair, but the whole construction is contained within a diameter not materially larger than the pump-cylinder, or within a diameter not exceeding that of the policemans club or the dag-mans staff.
- the alarm is best operated by short, quick reciprocations of the piston, and by a system ,ofprearra'n ged signals (the meaning of respective signals depending upon the number of' whistles given, or upon number and intervals) the instrument can be made very useful upon railways, by watchmen and night police, and
- a pneumatic alarm or signal consisting of a pump-cylinder, a piston, and a whistle or sonoric vibrator, constructed, combined, and relatively arranged, substantially as shown and described.
- the air-pump having an orifice through which the air is both admitted and ejected without any valve or valvular mechanism
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Description
N y .iivrrnn 'rnrns struction of a pneumatic alarm or signal,
maar
JOHN F. HASKINS, F FITCHBURG, MASSACHUSETTS.
" IMPROVEMENT IN ALARM-BATONS.
Specification forming part of Letters Patent No. 115,464, dated May 30, 1871.
To all whom it may concern:
Be it known that I, JOHN r. Hisxms, ,of4
Fitchburg, in the county of Worcester and Sta-te of Massachusetts, have invented an Improved Pneumatic Alarm or Signal; and I do hereby declare that the following, taken in connection with the drawing which accompanies and forms part of this speciticatiomis a description of my invention sufficient to enable those skilledin the art to practice it.
United States Letters Patent No. 110,036, dated December 13, 1870, were granted to me for an improved pneumatic alarm or signal, my invention described in said patent consist- `in g in combining an air-reservoir, an air-pump `located within said reservoir, a vibrator-or whistle, and means for controlling the passage betweenthe vibrator and the reservoir.
My present invention also relates to the rnhe object of my invention being to make a 1n re sim ple apparatus or alarm for hand use, or an instrument which, in connection with the handflag of a railway flag-man or the clubof apoliceman, occupies no additional room, or does `not increase the bulk nor materially increase the weight of such implements. To effect this I dispense entirely with the air-stowin g reser- 7 voir shown in my aforesaid patent, and use for the alarm `mechanism only an air-compressin g 1 pump (consisting of a tube, a piston, and a `piston rod or handle) and a whistle orvibrator.
'Ihe invention consists in an alarm or signal mechanism'composed of an air. tube and Vpiston, and on the air inlet or outlet end of the ytube a whistle or vibrator, which, by forcibly driving out the air (drawn into the tube by the retreat of the pistonyby forcing the piston forward, emits or produces a sharp `and loud sound. 1
lhe drawing represents in section a pneumatic alarm embodying the invention.
a denotes a'metaltube or pump-cylinder; b, a piston fitting andbplaying in said tube; c, a piston-rod, preferably made-of wood, and tting but sliding easily through the cap d; e, a handle on the end of said rod. Near the llower and air-inlet end of the tube is a cross-piece, or partition, or seat, f, havingperforations g and a nut-threaded central hole, h, into which is fastened the screw-threaded end of a spinldle, t', of a whistle, k, preferably formed like,
or not unlike, a common steam-whistle.
As the piston is drawn back air passes freely into the cylinder around the edge of the disk or flange l, and as the piston is driven' forward the air is forced out through the same opening.. and against the edge of cup m., producing the alarm-whistle.
It will thus be seen that no air has to be stored 5 that the current of air urged by lthe piston, and not the mere elasticity of compressed air, is used to produce the alarm; that no valvular arrangement is required either in the tube or in the-piston; that no cock is necessary; and that no mechanism is required other than the tplain whistle, (the parts of which, in operating, have no relative movements,) the pump-cylinder, and the piston. y
Hence the alarm is not only simple, inexpensive, and free from liability to get out of repair, but the whole construction is contained within a diameter not materially larger than the pump-cylinder, or within a diameter not exceeding that of the policemans club or the dag-mans staff.
The alarm is best operated by short, quick reciprocations of the piston, and by a system ,ofprearra'n ged signals (the meaning of respective signals depending upon the number of' whistles given, or upon number and intervals) the instrument can be made very useful upon railways, by watchmen and night police, and
and in other positions where it is often necessary or desirable to give alarms.
l claim- 1. A pneumatic alarm or signal, consisting of a pump-cylinder, a piston, and a whistle or sonoric vibrator, constructed, combined, and relatively arranged, substantially as shown and described.
2. The air-pump, having an orifice through which the air is both admitted and ejected without any valve or valvular mechanism, and
having a sonoric vibrator in combination with such pump. y JOHN F.HASKINS. Witnesses:
u If. L. HILLS,
FRANCIS GoULD.
rrr-cn.
Publications (1)
Publication Number | Publication Date |
---|---|
US115464A true US115464A (en) | 1871-05-30 |
Family
ID=2184923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US115464D Expired - Lifetime US115464A (en) | Improvement in alarm-batons |
Country Status (1)
Country | Link |
---|---|
US (1) | US115464A (en) |
-
0
- US US115464D patent/US115464A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US495863A (en) | whitz | |
US115464A (en) | Improvement in alarm-batons | |
US737809A (en) | Valve for pumps. | |
US803661A (en) | Poison-distributer. | |
US577433A (en) | Door-alarm | |
US228532A (en) | Relief-valve for air-cylinders | |
US193474A (en) | Improvement in pneumatic signals | |
US110036A (en) | Improvement in nautical alarms | |
US149908A (en) | Improvement in toys | |
US698511A (en) | Syringe. | |
US1174358A (en) | Amplifying device. | |
US325926A (en) | Air-pump | |
US64716A (en) | Thomas shaw | |
US919776A (en) | Combined odometer and speedometer. | |
US1015962A (en) | Pneumatic push-button and pump. | |
US117861A (en) | Improvement in fog-alarms | |
US127506A (en) | Improvement in funnels | |
US745415A (en) | Nebulizer and means for attaching same to supporting-tanks. | |
US569323A (en) | Inlet-valve for air-com pressors | |
US257458A (en) | Charles e | |
US195834A (en) | Improvement in air-forcing beer-pumps | |
US74904A (en) | Russel feisbtb | |
US571639A (en) | Sounding device | |
US1305509A (en) | Leopold weston and john reid jones | |
US564390A (en) | Bulb for atomizers |