US1054212A - Contact for screw-plug fuses. - Google Patents

Contact for screw-plug fuses. Download PDF

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Publication number
US1054212A
US1054212A US57517910A US1910575179A US1054212A US 1054212 A US1054212 A US 1054212A US 57517910 A US57517910 A US 57517910A US 1910575179 A US1910575179 A US 1910575179A US 1054212 A US1054212 A US 1054212A
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US
United States
Prior art keywords
contact
screw
plug
foot
rings
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
US57517910A
Inventor
Wilhelm Klement
Emil Kohrs
Carl Leichtenschlag
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.)
Siemens Schuckertwerke AG
Original Assignee
Siemens Schuckertwerke AG
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Publication date
Application filed by Siemens Schuckertwerke AG filed Critical Siemens Schuckertwerke AG
Priority to US57517910A priority Critical patent/US1054212A/en
Application granted granted Critical
Publication of US1054212A publication Critical patent/US1054212A/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
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
    • H01H85/044—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified
    • H01H85/045—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified cartridge type
    • H01H85/0454—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified cartridge type with screw-in type contacts

Definitions

  • This invcntion relates g'cncrully to screw plug fuses and particularly to those Jill hcuv currents. and u priniury object is to provide a good leciricul connection hetivcen the foot contacts of the fuse which cuni'iot be obtained with the Well-known rigid contact surfaces on account of these surfaces being made inexactl
  • our improve-(l foot contact comprises a plurality of annular, concentric, sheet-metal rings which are slit at their edges and as a whole form a contact brush. in contract may be arranged desired on the fuse lug itself or on the contact bar.
  • FIG. 1 Three illustrative embodiments of our invention in the form of foot contacts attached to the contact bar of tuse plugs are represented by way of cxumplcjn the accoinpanying drawing, wherein Figures 1 and 2 are elevation partly in section, and plan VlEW' of the footcontact only, respectively, showing a foot contact composed of dishsliaped sheet'inctal rings;
  • Figs. 3 and l are like views respectively, showing a modified form 05? foot contact, 5 and 6 arc like views, respccshowing another modiue'l con- 1 ti. 4
  • 3 and 4 show a foot contactcom prising a plurality of conical, cone-anttic sheet-metal rings e.
  • Figs. 5 6 show a foot contact comprisin conical, sheet-metal rings 7' provided with cylindrical lugs 9. These lugs are for keeping the rings central.
  • the individual Specification cf Letters Eutezit.
  • rings are provided with slits 7a in their conical edges for making; tl'lGH. elastic, They are arranged, readily revoluble so that when the screw plug is screwed in they can move with it and thcreby Keep the places oi contact clean.
  • a screw plug fuse having a contact face adapted to move 'at right angles to its plans when the plug is screwed in place, a fixed foot contact comprising a plurality of concentric elastic sheet metal rings forming withtheir outer ends a straight contact surface parallel to the contact face of said screw plug and adapted to electrically coni tact with said face when the plug is screwed in place.
  • a screw plug fuse having a, contact face adapted to more at. right angles to its plane when the plug is screwed in place, a fixed foot contact comprising a plurality of concentric elastic substantially conical sheet metal rings forming with their outer ends a straight Contact surface parallel to the contact face of said screw plug and adapted to electrically contact with said face When the plug is screwed in place.
  • a foot contact comprising a plurality of concentric lclastic, conical slicet-metul rings having cylindrical lugs.
  • a screw plug fuse having "a'contact as face adapted to move at right angles to its plans when the plug is screwed in place, a lizctl foot contact comprising a plurality oi concentric elastic substantially conical sheet.
  • metal rings forming with theirouter cnds an annular contact surface parallel to the, contact time of said screw plug and adapted to electrically contact with said face when the plug is screwe in place, and a screw centrally arranged Within said for attaching said foot contactto its support.
  • domes of this cutest may in: c'biulncil for five cents each, by addressing the Gcmmlealoner of Patents,

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Dowels (AREA)
  • Pens And Brushes (AREA)

Description

W. KLEMBNT, E. KOHRS & 0. LEIGHTBNSGHLAG.
CONTACT FOR SCREW PLUG FUSES APPLICATION FILED AUG. 2 1910.
1,054,212, Patented Feb. 25, 1913.
LEIQHTEl-ISCHLAG, 01* CHARLOT'IENBE'EG, GEIEEEMNY,
ASSIGITGRS TO SIEMENS- SGHUCKERTWERKE G. M. B. 1-1., OF BERLIN, GERMANY, A GORPORATEGZW 013 GER- l f'iAlifY.
Application filed August 2 To (/7? whom it may concern:
le it lrnoun that we, lliiinumi Knnirunr, rcn fling at Kcii-l inkcnltrug-ldulltcnhnin and" Emu Konns and CARL lninrnrnxscnliiu. residing at .Churlottenhurg, Gerri 1y :suhjc-zs of the German Emperor have inventcd certain new and useful Improvements in Cork tacts for Scrcw-Pl'ug l use: .)f which the following is a specification.
This invcntion relates g'cncrully to screw plug fuses and particularly to those Jill hcuv currents. and u priniury object is to provide a good leciricul connection hetivcen the foot contacts of the fuse which cuni'iot be obtained with the Well-known rigid contact surfaces on account of these surfaces being made inexactl To this end our improve-(l foot contact comprises a plurality of annular, concentric, sheet-metal rings which are slit at their edges and as a whole form a contact brush. in contract may be arranged desired on the fuse lug itself or on the contact bar.
Three illustrative embodiments of our invention in the form of foot contacts attached to the contact bar of tuse plugs are represented by way of cxumplcjn the accoinpanying drawing, wherein Figures 1 and 2 are elevation partly in section, and plan VlEW' of the footcontact only, respectively, showing a foot contact composed of dishsliaped sheet'inctal rings;
Figs. 3 and l are like views respectively, showing a modified form 05? foot contact, 5 and 6 arc like views, respccshowing another modiue'l con- 1 ti. 4
"inferring firstly to I i. and the t contact here shown comprises a plu-' rality of dish-shaped, concentric,sneet-inctul rings a secured by means of a screw Z) on the contact bar 0. The bottom and top faces of the conical edges of the individual rings or dishes 6:, which directly electrically conncct the plug and the cont-act bar a, serve for transmitting the current.
3 and 4 show a foot contactcom prising a plurality of conical, cone-anttic sheet-metal rings e.
Figs. 5 6 show a foot contact comprisin conical, sheet-metal rings 7' provided with cylindrical lugs 9. These lugs are for keeping the rings central. The individual Specification cf Letters Eutezit.
, 3,815). Serial ll'c. 575,179.
CGNTXLCT FDR SCREW-YLUG FUSES.
rings are provided with slits 7a in their conical edges for making; tl'lGH. elastic, They are arranged, readily revoluble so that when the screw plug is screwed in they can move with it and thcreby Keep the places oi contact clean.
1., A screw plug fuse having a contact face adapted to move 'at right angles to its plans when the plug is screwed in place, a fixed foot contact comprising a plurality of concentric elastic sheet metal rings forming withtheir outer ends a straight contact surface parallel to the contact face of said screw plug and adapted to electrically coni tact with said face when the plug is screwed in place.
2. A screw plug fuse having a, contact face adapted to more at. right angles to its plane when the plug is screwed in place, a fixed foot contact comprising a plurality of concentric elastic substantially conical sheet metal rings forming with their outer ends a straight Contact surface parallel to the contact face of said screw plug and adapted to electrically contact with said face When the plug is screwed in place.
3. In a screw plug fuse, a foot contact, comprising a plurality of concentric lclastic, conical slicet-metul rings having cylindrical lugs.
4. A screw plug fuse having "a'contact as face adapted to move at right angles to its plans when the plug is screwed in place, a lizctl foot contact comprising a plurality oi concentric elastic substantially conical sheet. metal rings forming with theirouter cnds an annular contact surface parallel to the, contact time of said screw plug and adapted to electrically contact with said face when the plug is screwe in place, and a screw centrally arranged Within said for attaching said foot contactto its support. 7
En testimony whereof we have signed our names-to this specification in the presence of two Witnesses.
WILHELM KLEMENT. EMIL KOHRS.
CARL LElCl-ITENSCHLAG.
Witnesses:
Worusrmn HAUPT, HENRY HASPER.
domes of this cutest may in: c'biulncil for five cents each, by addressing the Gcmmlealoner of Patents,
US57517910A 1910-08-02 1910-08-02 Contact for screw-plug fuses. Expired - Lifetime US1054212A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US57517910A US1054212A (en) 1910-08-02 1910-08-02 Contact for screw-plug fuses.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57517910A US1054212A (en) 1910-08-02 1910-08-02 Contact for screw-plug fuses.

Publications (1)

Publication Number Publication Date
US1054212A true US1054212A (en) 1913-02-25

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US57517910A Expired - Lifetime US1054212A (en) 1910-08-02 1910-08-02 Contact for screw-plug fuses.

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