IT1257170B - Key lever system for accordion - works against spring and has valve on one sector and second sector connected to key - Google Patents

Key lever system for accordion - works against spring and has valve on one sector and second sector connected to key

Info

Publication number
IT1257170B
IT1257170B ITTO920870A IT1257170B IT 1257170 B IT1257170 B IT 1257170B IT TO920870 A ITTO920870 A IT TO920870A IT 1257170 B IT1257170 B IT 1257170B
Authority
IT
Italy
Prior art keywords
sector
key
valve
lever
works against
Prior art date
Application number
Other languages
Italian (it)
Inventor
Paul Thevis
Original Assignee
Paul Thevis
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 Paul Thevis filed Critical Paul Thevis
Priority to IT000870 priority Critical patent/IT1257170B/en
Publication of ITTO920870A0 publication Critical patent/ITTO920870A0/en
Publication of ITTO920870A1 publication Critical patent/ITTO920870A1/en
Application granted granted Critical
Publication of IT1257170B publication Critical patent/IT1257170B/en

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  • Extensible Doors And Revolving Doors (AREA)

Abstract

Key lever works against a spring and has a valve on one sector and on a second connects to the key. A third sector angled relative to the second also carries a valve and forms a separate key lever which is hinged to the main lever and sprung into the valve-closing position. The leaf load spring (27) should be on the first, valve-carrying (5) sector to press the hinge-connected key lever (12) onto an adjustable end stop (26) used to set the angle of lever to the main key lever (1). The spring acts on the hinged part (20) of lever enclosing the main lever.
IT000870 1992-10-27 1992-10-27 Key lever system for accordion - works against spring and has valve on one sector and second sector connected to key IT1257170B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT000870 IT1257170B (en) 1992-10-27 1992-10-27 Key lever system for accordion - works against spring and has valve on one sector and second sector connected to key

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000870 IT1257170B (en) 1992-10-27 1992-10-27 Key lever system for accordion - works against spring and has valve on one sector and second sector connected to key

Publications (3)

Publication Number Publication Date
ITTO920870A0 ITTO920870A0 (en) 1992-10-27
ITTO920870A1 ITTO920870A1 (en) 1994-04-27
IT1257170B true IT1257170B (en) 1996-01-05

Family

ID=11410812

Family Applications (1)

Application Number Title Priority Date Filing Date
IT000870 IT1257170B (en) 1992-10-27 1992-10-27 Key lever system for accordion - works against spring and has valve on one sector and second sector connected to key

Country Status (1)

Country Link
IT (1) IT1257170B (en)

Also Published As

Publication number Publication date
ITTO920870A0 (en) 1992-10-27
ITTO920870A1 (en) 1994-04-27

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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: 19971029