US1577757A - Checking mechanism - Google Patents

Checking mechanism Download PDF

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Publication number
US1577757A
US1577757A US570759A US57075922A US1577757A US 1577757 A US1577757 A US 1577757A US 570759 A US570759 A US 570759A US 57075922 A US57075922 A US 57075922A US 1577757 A US1577757 A US 1577757A
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US
United States
Prior art keywords
checking mechanism
checking
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
Application number
US570759A
Inventor
Qua Frederick L Re
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cutler Hammer Manufacturing Co
Original Assignee
Cutler Hammer Manufacturing Co
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 Cutler Hammer Manufacturing Co filed Critical Cutler Hammer Manufacturing Co
Priority to US570759A priority Critical patent/US1577757A/en
Application granted granted Critical
Publication of US1577757A publication Critical patent/US1577757A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/04—Levers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20924—Controller checks
US570759A 1922-06-24 1922-06-24 Checking mechanism Expired - Lifetime US1577757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US570759A US1577757A (en) 1922-06-24 1922-06-24 Checking mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US570759A US1577757A (en) 1922-06-24 1922-06-24 Checking mechanism

Publications (1)

Publication Number Publication Date
US1577757A true US1577757A (en) 1926-03-23

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ID=24280947

Family Applications (1)

Application Number Title Priority Date Filing Date
US570759A Expired - Lifetime US1577757A (en) 1922-06-24 1922-06-24 Checking mechanism

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US (1) US1577757A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2571960A (en) * 1949-10-20 1951-10-16 Westinghouse Electric Corp Grounding switch operating mechanism
US2810302A (en) * 1954-11-30 1957-10-22 Northrop Aircraft Inc Reversible incremental mechanism
US2871712A (en) * 1955-09-23 1959-02-03 Northrop Aircraft Inc Incremental motor
US2990930A (en) * 1956-11-05 1961-07-04 Nat Rejectors Gmbh Timing devices for coin switches

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2571960A (en) * 1949-10-20 1951-10-16 Westinghouse Electric Corp Grounding switch operating mechanism
US2810302A (en) * 1954-11-30 1957-10-22 Northrop Aircraft Inc Reversible incremental mechanism
US2871712A (en) * 1955-09-23 1959-02-03 Northrop Aircraft Inc Incremental motor
US2990930A (en) * 1956-11-05 1961-07-04 Nat Rejectors Gmbh Timing devices for coin switches

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