IT1244946B - Alarm device for signalling telluric movements - Google Patents

Alarm device for signalling telluric movements

Info

Publication number
IT1244946B
IT1244946B ITRM910181A ITRM910181A IT1244946B IT 1244946 B IT1244946 B IT 1244946B IT RM910181 A ITRM910181 A IT RM910181A IT RM910181 A ITRM910181 A IT RM910181A IT 1244946 B IT1244946 B IT 1244946B
Authority
IT
Italy
Prior art keywords
plate
middle plate
frame
circuit
signalling
Prior art date
Application number
ITRM910181A
Other languages
Italian (it)
Inventor
Domenico Platania
Original Assignee
Domenico Platania
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 date
Application filed by Domenico Platania filed Critical Domenico Platania
Priority to ITRM910181A priority Critical patent/IT1244946B/en
Publication of ITRM910181A0 publication Critical patent/ITRM910181A0/en
Publication of ITRM910181A1 publication Critical patent/ITRM910181A1/en
Application granted granted Critical
Publication of IT1244946B publication Critical patent/IT1244946B/en

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Abstract

The device is formed by a suspended body designed to oscillate as a result of the vibrations imparted to it, contact means designed to close a suitable electrical circuit following the vibrations imparted, both optical and acoustic warning means and repeaters actuated so as to close the circuit, and means for supplying the circuit. The frame is formed by a base plate, a middle plate and an upper plate which are connected by a vertical wall, the middle plate being provided with a hole through which the upper terminal end of the oscillating body is able to pass, and the base plate and the middle plate being electrically conducting and being connected to one of the poles of the electrical circuit. The oscillating body consists of three parts, the first bottom part of which is received, with play, in the bottom resiliently restraining body, while the upper portion is received, with play, in the hole of the middle plate of the frame, the body being suspended, in an electrically insulated manner, from the upper plate of the frame. <IMAGE>
ITRM910181A 1991-03-20 1991-03-20 Alarm device for signalling telluric movements IT1244946B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ITRM910181A IT1244946B (en) 1991-03-20 1991-03-20 Alarm device for signalling telluric movements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITRM910181A IT1244946B (en) 1991-03-20 1991-03-20 Alarm device for signalling telluric movements

Publications (3)

Publication Number Publication Date
ITRM910181A0 ITRM910181A0 (en) 1991-03-20
ITRM910181A1 ITRM910181A1 (en) 1992-09-20
IT1244946B true IT1244946B (en) 1994-09-13

Family

ID=11399981

Family Applications (1)

Application Number Title Priority Date Filing Date
ITRM910181A IT1244946B (en) 1991-03-20 1991-03-20 Alarm device for signalling telluric movements

Country Status (1)

Country Link
IT (1) IT1244946B (en)

Also Published As

Publication number Publication date
ITRM910181A0 (en) 1991-03-20
ITRM910181A1 (en) 1992-09-20

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960328