US1115720A - Switch-key. - Google Patents

Switch-key. Download PDF

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Publication number
US1115720A
US1115720A US77126713A US1913771267A US1115720A US 1115720 A US1115720 A US 1115720A US 77126713 A US77126713 A US 77126713A US 1913771267 A US1913771267 A US 1913771267A US 1115720 A US1115720 A US 1115720A
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United States
Prior art keywords
key
switch
frame
contact
plunger
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
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US77126713A
Inventor
Frank E Munsell
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Individual
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Individual
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Priority to US77126713A priority Critical patent/US1115720A/en
Application granted granted Critical
Publication of US1115720A publication Critical patent/US1115720A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/40—Wall-mounted casings; Parts thereof or accessories therefor
    • H02B1/42—Mounting of devices therein
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/12—Distribution boxes; Connection or junction boxes for flush mounting
    • H02G3/123—Distribution boxes; Connection or junction boxes for flush mounting in thin walls

Definitions

  • Fig. 9 an enlarged view of the plunger contact holder and plunger.
  • Fig. 3 is a view of the contact spring used in the key.
  • the key table 1 supports the frame 2 carrying the block 3 of insulating material.
  • a convenient form for the frame is that of a tube having a flange at the top: or it may be a stirrup-shaped piece. The exact form is immaterial.
  • In 3 are driven a number of plunger holders 4, one for each circuit connection to' the key-switch. In each of these is placed a contact plunger 6, having a spring 7 attached to it, which has an end 8 adapted to be drawn through hole 9 in the holder and soldercd,thereby forming a positive connection. .Cjrcuit wires 10 are soldered. to the downwardly rojecting ends of the holder-s4. Any suita is form of key is now mounted above the plungers, the springs of said key being so disposed or forme'das to make contact with said plun-' gers when the key is in position.
  • Fig. l A convenient form for the frame is that of a tube having a flange at the top: or it may be
  • v sity of handling the wires shows a well known form of key, provided ties formed as shown at 12.
  • a switch'key a suitably supported frame, cylindrical plunger holders carried by said frame, resiliently actuated plungers mounted in said holders, an escutcheon reniovably secured to said frame, and a key carried by said cscutchcon and adapted to contact said plungcrs.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Push-Button Switches (AREA)

Description

F. E. MUNSELL. SWITCH KEY.
APPLICATION FILED JUNE 2. 1013.
1,1 15,720. Patented 131m. 3. 1914 UNITED STATES PATENT OFFICE FRANK E. MUNSELI}, OF HAMILTON, MISSOURI.
' SWITCH-KEY.
Specification 0; Letters Patent.
Application filed June 2, 1913. Serial No. 771,287.
To all whom, it may concern:
Be it known that I, FRANK E. MUNSELL, a citizen of the United-States, residing at Hamilton, in the county of Caldwell and .State of Missouri, have invented certain new view, partly in section 0 a key embodying my invention. Fig. 9 an enlarged view of the plunger contact holder and plunger. Fig. 3 is a view of the contact spring used in the key. i
The same figures of reference denote the same parts wherever they are shown.
The key table 1 supports the frame 2 carrying the block 3 of insulating material. A convenient form for the frame is that of a tube having a flange at the top: or it may be a stirrup-shaped piece. The exact form is immaterial. In 3 are driven a number of plunger holders 4, one for each circuit connection to' the key-switch. In each of these is placed a contact plunger 6, having a spring 7 attached to it, which has an end 8 adapted to be drawn through hole 9 in the holder and soldercd,thereby forming a positive connection. .Cjrcuit wires 10 are soldered. to the downwardly rojecting ends of the holder-s4. Any suita is form of key is now mounted above the plungers, the springs of said key being so disposed or forme'das to make contact with said plun-' gers when the key is in position. Fig. l
v sity of handling the wires shows a well known form of key, provided ties formed as shown at 12. When the es cutcheon plate 13 carrying this key is clamped on frame 2 by bolts 14 and 15, or in any other manner, it is obvious that the key springs 11 will be in electrical connection with their respective circuit wires 10, through plungers 6 and their mounting tubes. -And it is obvious that the key be removed and replaced without the-neces- 10, and that the contacts between 6 and 12 will alwa s be correctly made, there being no possibility of IVhile I have shown but one form of con struction it is obvious that my invention may be utilized in various ways without departing from the broad plan as herein dircloscd of mounting a switch key above suitable toiu'h-contact, nn-mbers thereby eliminating soldered or screw cunnectiohs to the key proper. A modification from the form shown would be to omit the frame 2 and carry piece 3 and the parts it supports on the bottom of the usual key shelf, and support the key proper above it. All such modifications I deem within the scope of my invention.
I claim In a switch'key, a suitably supported frame, cylindrical plunger holders carried by said frame, resiliently actuated plungers mounted in said holders, an escutcheon reniovably secured to said frame, and a key carried by said cscutchcon and adapted to contact said plungcrs.
In testimony hereof l hereunto aliix my ignature in the presence of two witnesses.
FRANK E. MUNSELL.
'itncsscs:
Patented N 0v, 3, 1914.
with springs 11 having their lower extremimay
US77126713A 1913-06-02 1913-06-02 Switch-key. Expired - Lifetime US1115720A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US77126713A US1115720A (en) 1913-06-02 1913-06-02 Switch-key.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77126713A US1115720A (en) 1913-06-02 1913-06-02 Switch-key.

Publications (1)

Publication Number Publication Date
US1115720A true US1115720A (en) 1914-11-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
US77126713A Expired - Lifetime US1115720A (en) 1913-06-02 1913-06-02 Switch-key.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521005A (en) * 1947-04-08 1950-09-05 Theodore J Gundlach Door switch for burglar alarm systems
US2600832A (en) * 1947-10-16 1952-06-17 Raymond T Moloney Dual action ball switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521005A (en) * 1947-04-08 1950-09-05 Theodore J Gundlach Door switch for burglar alarm systems
US2600832A (en) * 1947-10-16 1952-06-17 Raymond T Moloney Dual action ball switch

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