US989364A - Switch. - Google Patents

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Publication number
US989364A
US989364A US57364810A US1910573648A US989364A US 989364 A US989364 A US 989364A US 57364810 A US57364810 A US 57364810A US 1910573648 A US1910573648 A US 1910573648A US 989364 A US989364 A US 989364A
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United States
Prior art keywords
switch
terminal
switch blade
contacts
supports
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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
US57364810A
Inventor
Claud Huffman
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Individual
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Individual
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Priority to US57364810A priority Critical patent/US989364A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/56—Angularly-movable actuating part carrying contacts, e.g. drum switch
    • H01H19/58—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch

Definitions

  • This invention relates to electric switches andxmore particularly to knife switches for telephone use.
  • the object of the invention is the provision of a simple, cheaply constructed and efficient knife switch which when thrown to inoperative position for the main line ⁇ will practically constitute a lightning arrester.
  • a still further object of the invention is the provision of a knife switch having a novel form of construction and support which effectively insulates the separate terminals of the switch and elevates the same from the base plate.
  • Figure 1 is a side elevation.
  • Fig. 2 is a similar view showing the alternative position of the switch.
  • Fig. 3 is an end elevation.
  • Fig. 4 is a vertical section taken on the line 4 4 of Fig. 1.
  • FIG. 1 represents the base plate which has mounted thereon the bracket supports 2 and 3 both of which are provided at their upper ends with circular heads through which passes the terminal supporting member 4.
  • This member preferably consists of a cylindrical tube of glass or other similar insulating material and is clamped within the supporting members 2 and 3 by set screws 5 and is cushioned from the supporting members 2 and 8 by a rubber strip 6 which also further insulates these parts.
  • a switch blade pivoting member 7 which comprises a band of material extending around the tube and clamped thereto by a binding post 8 and insulated by a cushioning ⁇ strip 9.
  • the parallel ends are eX- tended on opposite sides of the switch blade 10 which is pivoted therebetween by a bolt 11.
  • the terminal contacts 12 and 13 are held upon the opposite ends of the tube by binding screws 14 in a similar manner to the member 7 and have connected thereto the main line and ground lines respectively, the telephone wire being connected to the binding post 8.
  • One end of the switch blade 10 has projecting therefrom a button 15 upon which is mounted an operating rod 16 by which the switch blade may be thrown into engagementwith either terminal contact 13 or 14. Then the switch lever is in engage ment'with the contact 18 and the telephone disconnected from the main line and grounded, an excessive arc between the contact 12 and the respective end of the switch blade will be conducted directly to the ground without injuring the telephone.
  • the construction of the terminal contacts is such that they may be adjusted at right angles to the supporting members so as to adapt the switch for mounting upon the jamb of a window or door in the manner of the old type of side wall switch.
  • a switch the combination with a base, of supports thereon, a ⁇ tubular insulating member mounted in the supports, terminal contacts mounted upon the ends of the tubular insulating member, terminal binding posts securing said contacts upon the insulating member, a switch blade mounting carried intermediate the contacts, a terminal binding post for securing said mounting in position upon the insulating member, a switch blade pivoted to said mounting, and means for throwing said switch blade into engagement with either of the contacts.

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  • Push-Button Switches (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

c. HUPPMAN.
SWITCH.
APPLICATION FILED .TULY 23, 1910.
CLAUD HUIEFMAN, F VERSAILLES, MISSOURI.
SWITCH.
Specication of Letters Patent.
Patented Apr. 11, 1911.
Application led July 23, 1910. Serial No. 573,648.
To all whom it may concern:
Be it known that l, CLAUD HUFFMAN, a citizen of the United States, residing at Versailles, in the county of Morgan and State of Missouri, have invented new and useful Improvements Iin Switches, of which the following is a specification.
This invention relates to electric switches andxmore particularly to knife switches for telephone use.
The object of the invention is the provision of a simple, cheaply constructed and efficient knife switch which when thrown to inoperative position for the main line `will practically constitute a lightning arrester.
A still further object of the invention is the provision of a knife switch having a novel form of construction and support which effectively insulates the separate terminals of the switch and elevates the same from the base plate.
Further objects of the invention will appear as the following specific description is read in connection with the accompanying drawing which forms a part of this application, and in which:
Figure 1 is a side elevation. Fig. 2 is a similar view showing the alternative position of the switch. Fig. 3 is an end elevation. Fig. 4 is a vertical section taken on the line 4 4 of Fig. 1.
Referring more particularly to the drawing 1 represents the base plate which has mounted thereon the bracket supports 2 and 3 both of which are provided at their upper ends with circular heads through which passes the terminal supporting member 4. This member preferably consists of a cylindrical tube of glass or other similar insulating material and is clamped within the supporting members 2 and 3 by set screws 5 and is cushioned from the supporting members 2 and 8 by a rubber strip 6 which also further insulates these parts. Mounted upon the tube 4 intermediate the supports 2 and 3 is a switch blade pivoting member 7 which comprises a band of material extending around the tube and clamped thereto by a binding post 8 and insulated by a cushioning` strip 9. The parallel ends are eX- tended on opposite sides of the switch blade 10 which is pivoted therebetween by a bolt 11. The terminal contacts 12 and 13 are held upon the opposite ends of the tube by binding screws 14 in a similar manner to the member 7 and have connected thereto the main line and ground lines respectively, the telephone wire being connected to the binding post 8.
One end of the switch blade 10 has projecting therefrom a button 15 upon which is mounted an operating rod 16 by which the switch blade may be thrown into engagementwith either terminal contact 13 or 14. Then the switch lever is in engage ment'with the contact 18 and the telephone disconnected from the main line and grounded, an excessive arc between the contact 12 and the respective end of the switch blade will be conducted directly to the ground without injuring the telephone.
it will be noticed that the construction of the terminal contacts is such that they may be adjusted at right angles to the supporting members so as to adapt the switch for mounting upon the jamb of a window or door in the manner of the old type of side wall switch.
Having thus described the invention, what is claimed is In a switch, the combination with a base, of supports thereon, a` tubular insulating member mounted in the supports, terminal contacts mounted upon the ends of the tubular insulating member, terminal binding posts securing said contacts upon the insulating member, a switch blade mounting carried intermediate the contacts, a terminal binding post for securing said mounting in position upon the insulating member, a switch blade pivoted to said mounting, and means for throwing said switch blade into engagement with either of the contacts.
1n testimony whereof I affix my signature in presence of two witnesses.
CLAUD HUFFMAN.
Witnesses H. E. NEVILLE, W. H. GLNEY.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of iatents, Washington, D. C.
US57364810A 1910-07-23 1910-07-23 Switch. Expired - Lifetime US989364A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US57364810A US989364A (en) 1910-07-23 1910-07-23 Switch.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57364810A US989364A (en) 1910-07-23 1910-07-23 Switch.

Publications (1)

Publication Number Publication Date
US989364A true US989364A (en) 1911-04-11

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US57364810A Expired - Lifetime US989364A (en) 1910-07-23 1910-07-23 Switch.

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