US1370028A - Switching mechanism - Google Patents

Switching mechanism Download PDF

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Publication number
US1370028A
US1370028A US100370A US10037016A US1370028A US 1370028 A US1370028 A US 1370028A US 100370 A US100370 A US 100370A US 10037016 A US10037016 A US 10037016A US 1370028 A US1370028 A US 1370028A
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US
United States
Prior art keywords
members
switching mechanism
lum
pivotally mounted
movable
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
US100370A
Inventor
Walter O Lum
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.)
CBS Corp
Original Assignee
Westinghouse Electric and 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 Westinghouse Electric and Manufacturing Co filed Critical Westinghouse Electric and Manufacturing Co
Priority to US100370A priority Critical patent/US1370028A/en
Application granted granted Critical
Publication of US1370028A publication Critical patent/US1370028A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/225—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member the supporting member being pivotable

Definitions

  • the various parts of the switching mechanism described above may be manufactured with a minimum expenditure of time and labor in View of the fact that they-may, for the most part, be formed by a single operation; for example, the members 7, 11 and 20 may be punched from plates or straps, as the maybe, of sheet material.
  • the various parts may be readily assembled and secured in position. In order to place the members 11 and the attached contact mem bers 8 in their operative positions, it is only necessary to compress the spring 16 to such degree that the members 11 may be inserted between the members 15.
  • the switching mechanism constituting the subject-matter of the present invention is particularly adapted for use in connection vith automatic starters for electric motors but it will be understood that it may be employed in any mechanism of a simliar character which embodies corresponding parts.
  • a switching mechanism the combination with a plurality of pivotal supporting members and a corresponding number of members having substantially semi-circular bearing portions for coacting with said pivbination with a supporting member, and a plurality of members pivotally mounted thereon and having substantially semi-circular bearing surfaces, the open sides of which are oppositely disposed, a stop for limiting the rotative D'IOVGHlBllt of said pivotally mounted members, and a spring for retail ing said pivotally mounted members in op erative relation to said supporting member.

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  • Railway Tracks (AREA)
  • Adjustable Resistors (AREA)
  • Slide Switches (AREA)

Description

W. O. LUM.
SWITCHING MECHANISM. APPucAn'oN FILED M'A4Y27, 1916.
In Ml m ML. V/ M me 0m m a w W m.
WITNESSES ATTORNEY W. O. LUM.
SWITCHING MECHANISM. APPLICATION FILED MAY 21 1916.
1,370,02 Patented Mar.1, 1921.
2 $HEETS-SHEET 2- V I I w I I I v WITNESSES: I & INVENTOFL Vlf/fe/O. Lz/m /Q 2 7 Z members 11 on the right constituting a support for the spring since they are prevented from rotating by the projections 13' and the coacting stop pins 14.
When the handle 17 and its connected parts are returned to their respective inoperative positions, the members 11 are turned to their illustrated positions with the projections 13 in engagement with the pins 14.
The various parts of the switching mechanism described above may be manufactured with a minimum expenditure of time and labor in View of the fact that they-may, for the most part, be formed by a single operation; for example, the members 7, 11 and 20 may be punched from plates or straps, as the maybe, of sheet material. The various parts may be readily assembled and secured in position. In order to place the members 11 and the attached contact mem bers 8 in their operative positions, it is only necessary to compress the spring 16 to such degree that the members 11 may be inserted between the members 15.
The switching mechanism constituting the subject-matter of the present invention is particularly adapted for use in connection vith automatic starters for electric motors but it will be understood that it may be employed in any mechanism of a simliar character which embodies corresponding parts.
I claim as my invention:
.1. In a switching mechanism, the combination with a plurality of pivotal supporting members and a corresponding number of members having substantially semi-circular bearing portions for coacting with said pivbination with a supporting member, and a plurality of members pivotally mounted thereon and having substantially semi-circular bearing surfaces, the open sides of which are oppositely disposed, a stop for limiting the rotative D'IOVGHlBllt of said pivotally mounted members, and a spring for retail ing said pivotally mounted members in op erative relation to said supporting member.
4;. The combination with a pair of stationa-ry contact elements, ota pair of co operating movable contact elements normally occupying an inoperative position, means for maintaining said movable elements separated, means for limiting the degree of separation of said movable elements and means for actuating one of said movable elements into engagement with the corresponding stantionary element, said other element then serving as a support said maintaining means to cause said maintairn in emails to effect firm en agement between said one movable element and. said corresponding stationary eien'ient.
'WALTER O. LUM.
r In a switching mechanism, the com
US100370A 1916-05-27 1916-05-27 Switching mechanism Expired - Lifetime US1370028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US100370A US1370028A (en) 1916-05-27 1916-05-27 Switching mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US100370A US1370028A (en) 1916-05-27 1916-05-27 Switching mechanism

Publications (1)

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US1370028A true US1370028A (en) 1921-03-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
US100370A Expired - Lifetime US1370028A (en) 1916-05-27 1916-05-27 Switching mechanism

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6222139B1 (en) * 1999-09-15 2001-04-24 General Electric Company Rotary electric switch and contact therefore

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6222139B1 (en) * 1999-09-15 2001-04-24 General Electric Company Rotary electric switch and contact therefore

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