US816430A - Pneumatic alarm. - Google Patents

Pneumatic alarm. Download PDF

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Publication number
US816430A
US816430A US26831105A US1905268311A US816430A US 816430 A US816430 A US 816430A US 26831105 A US26831105 A US 26831105A US 1905268311 A US1905268311 A US 1905268311A US 816430 A US816430 A US 816430A
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Prior art keywords
bellows
alarm
pneumatic
casing
pneumatic alarm
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US26831105A
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John Cairns
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    • 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

  • the object of my invention is to provide a pneumatic alarm for use on any kind of vehicle and which is operated by the foot, so as to leave the drivers hands free to drive, steer, or apply the brake, as the case may be.
  • the pneumatic alarm may take the form of any suitable and wellknown pneumatic means, such as a bellows or the like, which can be readily expanded and collapsed, so as to produce a movement of air, said air movement being caused to sound a horn or whistle or other alarm.
  • Figure l is a vertical section through the apparatus.
  • Fig. 2 is a side elevation of the apparatus.
  • Fig. 3 is a plan view of the valve 6.
  • Fig. 4 is a plan of the apparatus.
  • Fig. 5 is an inverted plan of the apparatus.
  • the pneumatic alarm consists of a hollow cylindrical box a, made of metal or other suitable material and having a hole I) at its under side. Arranged withm this box is a leather or other bellows or its equivalent 0, which is normally kept expanded by means of a spiral spring or its equivalent (1.
  • c is the top board of the bellows, and c the bottom board, which latter has a hole 0 in it covered by a valve or disk 6, which is or may be secured to the bottom 0 by means of strips of leather or such like Screwed or otherwise secured to the top board a is a plate 9, in which a rod 7b is screwed, said rod having at its upper end a disk or plate t.
  • the box or cylinder a is held in position by means of a metal or other holder or attach ment j j, which passes around the cylinder and is secured thereto at the bottom by means of screws or the like. Screwed into the cross-piece of this holder is a guide-tube 7c, having its upper end flanged at is, so as to rest on the foot-board Z or the floor of the vehicle.
  • a lug m Secured to the bottom of the bellows is a lug m, which has a tapped hole in it for the reception of a nozzle n, said nozzle having fitted into it a sounding-horn 0 or a whistle or such like, so as to sound an alarm.
  • the holder j is screwed onto the bottom of the guide-tube I"
  • the cylinder is held firmly in position.
  • the foot-pin or so-called lever h can be screwed into and out of the plate g as desired.
  • the bellows or equivalent is normally kept extended by means of the spring (Z then it is perfectly evident that if the driver presses his foot upon the plate i and suddenly collapses the bellows air will rush through the nozzle n and sound the horn 0.
  • the spring will automatically expand the bellows and draw air into the interior thereof through the valve 6 and air-holes b 0
  • the apparatus is very simple and is thoroughly efiicient,
  • the invention can be used on motor-boats.
  • a rigid casing a bellows therein, a holder for said casing extended across the top and bottom and opposite sides thereof, a guide-tube secured in said holder and in said casing and having a flange, and a rod passed through said tube and connected with the bellows.
  • a rigid casing having a hole in its bottom, a bellows in said casing having coincident hole, a loosely-mounted valve in said bellows controlling the opening therein, a holder passed beneath the casing and secured to the bottom thereof and extended upon opposite sides
  • a holder passed beneath the casing and secured to the bottom thereof and extended upon opposite sides

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Description

PATENTED MAR. 27, 1906.
J. CAIRNS. PNEUMATIC ALARM.
APPLIOATION FILED JULY 6, 1905.
JOHN CAIRNS, OF BANGOR, IRELAND.
PNEUMATIC ALARM.
Specification of Letters Patent.
Patented March 27, 1906.
Application filed Julyi6, 1905. Serial No. 268,311.
To (all whom it ntay concern:
Be it known that I, JOHN CAIRNS, mechanic, a subject of the King of Great Britain, residing at Beech Cottage, Bangor, county Down, Ireland, have invented certain new and useful Improvements in or Relating to Pneumatic Alarms for Use on Vehicles, of which the following is a specification.
At present it is usual to fit motor-vehicles and such like with horns or alarms which are manipulated by hand, so that the driver of the vehicle has not his hands free. In the case of ordinary carts and other vehicles for street traffic they have either no alarm or else merely a bell or such like.
The object of my invention is to provide a pneumatic alarm for use on any kind of vehicle and which is operated by the foot, so as to leave the drivers hands free to drive, steer, or apply the brake, as the case may be. The pneumatic alarm may take the form of any suitable and wellknown pneumatic means, such as a bellows or the like, which can be readily expanded and collapsed, so as to produce a movement of air, said air movement being caused to sound a horn or whistle or other alarm.
The invention can be carried out in various ways; but I prefer to make it in the manner which I will now proceed to describe with reference to the drawings annexed, which show, by way of example, a simple form of apparatus specially suitable for motor-cars and horse-vehicles.
On the drawings, Figure lis a vertical section through the apparatus. Fig. 2 is a side elevation of the apparatus. Fig. 3 is a plan view of the valve 6. Fig. 4 is a plan of the apparatus. Fig. 5 is an inverted plan of the apparatus.
On the drawings the same reference-letters wherever repeated indicate the same parts.
The pneumatic alarm consists of a hollow cylindrical box a, made of metal or other suitable material and having a hole I) at its under side. Arranged withm this box is a leather or other bellows or its equivalent 0, which is normally kept expanded by means of a spiral spring or its equivalent (1.
c is the top board of the bellows, and c the bottom board, which latter has a hole 0 in it covered by a valve or disk 6, which is or may be secured to the bottom 0 by means of strips of leather or such like Screwed or otherwise secured to the top board a is a plate 9, in which a rod 7b is screwed, said rod having at its upper end a disk or plate t.
The box or cylinder a is held in position by means of a metal or other holder or attach ment j j, which passes around the cylinder and is secured thereto at the bottom by means of screws or the like. Screwed into the cross-piece of this holder is a guide-tube 7c, having its upper end flanged at is, so as to rest on the foot-board Z or the floor of the vehicle.
Secured to the bottom of the bellows is a lug m, which has a tapped hole in it for the reception of a nozzle n, said nozzle having fitted into it a sounding-horn 0 or a whistle or such like, so as to sound an alarm.
The valve 6, owing to the leather strips connecting it with the bottom being quite loose, has perfectly free movement. When the holder j is screwed onto the bottom of the guide-tube I", the cylinder is held firmly in position. The foot-pin or so-called lever h can be screwed into and out of the plate g as desired. Now as the bellows or equivalent is normally kept extended by means of the spring (Z then it is perfectly evident that if the driver presses his foot upon the plate i and suddenly collapses the bellows air will rush through the nozzle n and sound the horn 0. After the alarm has been sounded and the pressure is taken off the plate i the spring will automatically expand the bellows and draw air into the interior thereof through the valve 6 and air-holes b 0 The apparatus is very simple and is thoroughly efiicient,
The invention can be used on motor-boats.
Having now fully described my invention, what I claim, and desire to secure by Letters Patent, is
1. In a pneumatic alarm for vehicles, a rigid casing, a bellows therein, a holder for said casing extended across the top and bottom and opposite sides thereof, a guide-tube secured in said holder and in said casing and having a flange, and a rod passed through said tube and connected with the bellows.
2. In a pneumatic alarm for vehicles, a rigid casing having a hole in its bottom, a bellows in said casing having coincident hole, a loosely-mounted valve in said bellows controlling the opening therein, a holder passed beneath the casing and secured to the bottom thereof and extended upon opposite sides In testimony whereof I affix my signature and across the'top of the casing with an openin presence of two witnesses.
' ing coincident with the opening in the bottom of the casing, a guide secured in the top I JOHN CAIRNS cross-piece of said hold er and into the casing Witnesses: and a rod passed through the top of the holder JAMES BEST,
and connected with the bellows. T. G. WARD.
US26831105A 1905-07-06 1905-07-06 Pneumatic alarm. Expired - Lifetime US816430A (en)

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US26831105A US816430A (en) 1905-07-06 1905-07-06 Pneumatic alarm.

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US26831105A US816430A (en) 1905-07-06 1905-07-06 Pneumatic alarm.

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030065550A1 (en) * 2001-03-23 2003-04-03 Restaurant Services, Inc. System, method and computer program product for network-based supply chain forecasting
US20110220004A1 (en) * 2010-03-09 2011-09-15 Michael Fishman Pump Horn
US20210241742A1 (en) * 2020-01-31 2021-08-05 Alan Richard Greenberg Manually rechargeable air horn

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030065550A1 (en) * 2001-03-23 2003-04-03 Restaurant Services, Inc. System, method and computer program product for network-based supply chain forecasting
US20110220004A1 (en) * 2010-03-09 2011-09-15 Michael Fishman Pump Horn
US8191496B2 (en) * 2010-03-09 2012-06-05 Michael Fishman Pump horn
US20210241742A1 (en) * 2020-01-31 2021-08-05 Alan Richard Greenberg Manually rechargeable air horn

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