US1487682A - Electric-circuit terminal - Google Patents
Electric-circuit terminal Download PDFInfo
- Publication number
- US1487682A US1487682A US572534A US57253422A US1487682A US 1487682 A US1487682 A US 1487682A US 572534 A US572534 A US 572534A US 57253422 A US57253422 A US 57253422A US 1487682 A US1487682 A US 1487682A
- Authority
- US
- United States
- Prior art keywords
- screw
- plate
- electric
- terminal
- extension
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/301—Clamped connections, spring connections utilising a screw or nut clamping member having means for preventing complete unscrewing of screw or nut
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
- Y10S411/999—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener with retainer, e.g. tether
Definitions
- My invention relates particularly to what are commonly termed binding posts or connectors for electric switches.
- the main object is .to provide a construction which can be economically made and which may be readily wired.
- Another object is to facilitate the wiring of a terminal of the type in which the end of the conductor is surrounded by insulation.
- the invention is shown as applied -to .a switch in which it is generally considered desirable to have the binding post or screws.
- My invention employs a terminal plate of any suitable character and provides for mounting the binding screw in such a way as to permit it to be tilted to one side or another to facilitate the placing of the conductor wire beneath the head of the screw without disengaging the screw from the terminal plate.
- Fig. 1 is a front view of one form of switch with a plurality of terminals emhodying the improvement of my invention.
- Fig. 2 is a side view and partial section on the plane of the line 2-2 of Fig. 1 showing one of the terminals or binding screws.
- Fi 3 is an enlarged fragmentary sec tiona view showing the binding screw partially withdrawn and tilted to one side to facilitate the introduction of the end of a wire.
- Fig. i is a fragmentary plan view of the same.
- lEi 5 is a detail view of the blank from whic' the screw is adapted to be formed.
- a terminal-plate 8 may be secured to the switch body or other support, for instance by means of a-screw 9 in any suitable manner.
- gagement with the terminal plate 8 as is customary in constructions of this character are locatedin a recess 11 in one corner of the switch block so as to house the end of the conductor and prevent it from comin into contact with other parts of the switc or its cover plate or housing.
- a groove or passage 12 is usually provided for the con-J an ductor.
- the end of this extension may be provided with a flange or upset. portion 14 to prevent the screw rem falling out when unscrewed.
- This flange 14 may be threaded if desired as shown in Fig. 6 so as to permit the screw tobe entirely withdrawn from the platewhen necessary. Such a screw will not however come out when unscrewed 1n the usual manner since 1t Wlll tilt or deflect to one side just as soon as the main thread is disengaged.
- an insulating housing having a recess, a terminal plate secured in said recess and having a threaded opening, a binding screw engaging in said threaded opening and having a head on its outer end and an extension on its inner end but longer than the thickness of said terminal permitting the screw to be tilted when partially disengaged from the terminal.
- an insulating support having a recess, a terminal plate in said recess and a screw seated in said terminal'plate-and having an extension of reduced diameter of greater length than the thickness of said plate permitting said screw to be tilted in said recess.
- binding screw having a threaded portion engaging in said seat and having a head adapted to hold a conductor against said plate and having an extension of smaller diameter than the threadedportion but longer than the thickness of sald plate and adapted to permit said screw to be tilted to one side without disengaging it from said plate.
- a terminal plate having a threaded seat, a binding screw having a threaded portion enapted to hold a conductoragainst said plate and having an extension at the other end of smaller diameter than the threaded portion and longer than the thickness of said plate adapted to permit said screw to be tilted to one side when partially disengaged from said plate, and having means at the end of said extension to prevent the com lete accidental withdrawal of said screw rom said plate.
- a 'terminalplate having a threaded seat, a binding screw having a threaded portion en gaging in said seat and having a head adapted to hold a conductor against said plate and having an extension of smaller diameter than the threaded portion adapted to permit said screw to be tilted to one side when partially disengaged from said plate, and having 'a threaded projection at the end of said extension.
Description
arch 18 1924; 1,487,68?
H. E. LEPPERT ELECTRIC CIRCUIT TERMINAL Filed July 5. 1922 inn Iii
INVENTOR emy w Leyper,
Patented Mar. 18, 1924.
HENRY E. LIlPPEBT, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO THE TRUMIBULL ELECTRIC MANUFACTURING COMPANY, 01E" PLAINVILLE, CONNECTICUT, A. COR- PORA'IION OF CONNECTICUT.
Application filed :l'uly 3,
To all whom it may concern:
Be it known that I, HENRY E. LEPPERT, a a citizen of the United States of America, residing at New Britain, Connecticut, have invented a new and useful Electric-Circuit Terminal, of which the following is a specification.
My invention relates particularly to what are commonly termed binding posts or connectors for electric switches. The main object is .to provide a construction which can be economically made and which may be readily wired.
Another object is to facilitate the wiring of a terminal of the type in which the end of the conductor is surrounded by insulation.
The invention. is shown as applied -to .a switch in which it is generally considered desirable to have the binding post or screws.
located in recesses, the walls of which insure the protection of the ends of the conductors so that accidental grounding is avoided. Such constructions are ordinarily difiicult to wire and as a result the wiremen spends an unwarranted amount of time and frequently fails to properly connect the wire.
My invention employs a terminal plate of any suitable character and provides for mounting the binding screw in such a way as to permit it to be tilted to one side or another to facilitate the placing of the conductor wire beneath the head of the screw without disengaging the screw from the terminal plate.
Fig. 1 is a front view of one form of switch with a plurality of terminals emhodying the improvement of my invention.
Fig. 2 is a side view and partial section on the plane of the line 2-2 of Fig. 1 showing one of the terminals or binding screws.
Fi 3 is an enlarged fragmentary sec tiona view showing the binding screw partially withdrawn and tilted to one side to facilitate the introduction of the end of a wire.
Fig. i is a fragmentary plan view of the same.
lEi 5 is a detail view of the blank from whic' the screw is adapted to be formed.
6 shows a finished screw.
I have shown the invention as applied to an ordinary gush button switch having an insulating bo y 7 which carries the various 1922. Serial no. 572,534.
parts. It shouldbe understood, however,
that the invention is applicable to any form of switch or other electrical device having any number of terminals.
A terminal-plate 8 may be secured to the switch body or other support, for instance by means of a-screw 9 in any suitable manner.
gagement with the terminal plate 8 as is customary in constructions of this character are locatedin a recess 11 in one corner of the switch block so as to house the end of the conductor and prevent it from comin into contact with other parts of the switc or its cover plate or housing. A groove or passage 12 is usually provided for the con-J an ductor.
' In a construction of this character, it will be seen that where the recess 11 is sufiiciently small to properly ther together and hold the end of the con uctor, it is difiicult to im sert the end of the conductor beneath the head of the screw unless the screw is made long enough to permit it to be backed out far enough for thehead to extend outside of the recess. This not'only requires considerable time but also means if the screw is to be long enough to prevent its fallin out whenthus retracted that the screw wil be so long as to in some cases extend too close to the tip of the movable contact memher. I have therefore provided the screw with an extension 13 smaller in diameter than the opening in the plate 8 so that when the screw is partially withdrawn as indicated in Figs. 3 and 4, it may be tilted to one side or another and. thus afiord a. substantial opening around the edges of the head of A binding screw 10 has a threaded enthe screw to permit the conductor to be readily twisted or wound around the shank of the screw. The end of this extension may be provided with a flange or upset. portion 14 to prevent the screw rem falling out when unscrewed.
This flange 14 may be threaded if desired as shown in Fig. 6 so as to permit the screw tobe entirely withdrawn from the platewhen necessary. Such a screw will not however come out when unscrewed 1n the usual manner since 1t Wlll tilt or deflect to one side just as soon as the main thread is disengaged.
I claim: a e
1. In an electric switch, an insulating housing having a recess, a terminal plate secured in said recess and having a threaded opening, a binding screw engaging in said threaded opening and having a head on its outer end and an extension on its inner end but longer than the thickness of said terminal permitting the screw to be tilted when partially disengaged from the terminal.
3. In a device of the character described, an insulating support having a recess, a terminal plate in said recess and a screw seated in said terminal'plate-and having an extension of reduced diameter of greater length than the thickness of said plate permitting said screw to be tilted in said recess.
a. In a' device of the character described,
' naeaesa a terminal plate having a threaded seat, a
binding screw having a threaded portion engaging in said seat and having a head adapted to hold a conductor against said plate and having an extension of smaller diameter than the threadedportion but longer than the thickness of sald plate and adapted to permit said screw to be tilted to one side without disengaging it from said plate.
5. In a device of the character described,
a terminal plate having a threaded seat, a binding screw having a threaded portion enapted to hold a conductoragainst said plate and having an extension at the other end of smaller diameter than the threaded portion and longer than the thickness of said plate adapted to permit said screw to be tilted to one side when partially disengaged from said plate, and having means at the end of said extension to prevent the com lete accidental withdrawal of said screw rom said plate.
6. In a device of the character described, a 'terminalplate having a threaded seat, a binding screw having a threaded portion en gaging in said seat and having a head adapted to hold a conductor against said plate and having an extension of smaller diameter than the threaded portion adapted to permit said screw to be tilted to one side when partially disengaged from said plate, and having 'a threaded projection at the end of said extension.
HENRY E. LEPPET.
in said seat and having a head at one
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US572534A US1487682A (en) | 1922-07-03 | 1922-07-03 | Electric-circuit terminal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US572534A US1487682A (en) | 1922-07-03 | 1922-07-03 | Electric-circuit terminal |
Publications (1)
Publication Number | Publication Date |
---|---|
US1487682A true US1487682A (en) | 1924-03-18 |
Family
ID=24288255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US572534A Expired - Lifetime US1487682A (en) | 1922-07-03 | 1922-07-03 | Electric-circuit terminal |
Country Status (1)
Country | Link |
---|---|
US (1) | US1487682A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2751006A (en) * | 1951-12-12 | 1956-06-19 | United States Steel Corp | Knife-clamping means for rotary shear |
US3124408A (en) * | 1962-02-13 | 1964-03-10 | Gen Am Transport | Screw fasteners and terminal boards incorporating the same |
US3426321A (en) * | 1965-10-08 | 1969-02-04 | Hubbell Inc Harvey | Electrical wiring device having improved captured screw terminals |
US4258941A (en) * | 1979-07-19 | 1981-03-31 | Mueller Co. | Service clamp for plastic pipe or the like |
US6322273B1 (en) * | 1999-10-08 | 2001-11-27 | The Ford Meter Box Company, Inc. | Joint restraint assembly |
US20150086292A1 (en) * | 2013-09-20 | 2015-03-26 | Greatbatch Ltd. | Set screw apparatus |
US20150152988A1 (en) * | 2012-06-14 | 2015-06-04 | Basf Coatings Gmbh | Locking-Ring Closure Having At Least One Screw Lock |
US10190615B2 (en) * | 2014-02-18 | 2019-01-29 | Centrix Aero, LLC | One piece screws for, and methods for making and using, blind side fasteners and systems with free spin feature |
-
1922
- 1922-07-03 US US572534A patent/US1487682A/en not_active Expired - Lifetime
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2751006A (en) * | 1951-12-12 | 1956-06-19 | United States Steel Corp | Knife-clamping means for rotary shear |
US3124408A (en) * | 1962-02-13 | 1964-03-10 | Gen Am Transport | Screw fasteners and terminal boards incorporating the same |
US3426321A (en) * | 1965-10-08 | 1969-02-04 | Hubbell Inc Harvey | Electrical wiring device having improved captured screw terminals |
US4258941A (en) * | 1979-07-19 | 1981-03-31 | Mueller Co. | Service clamp for plastic pipe or the like |
US6322273B1 (en) * | 1999-10-08 | 2001-11-27 | The Ford Meter Box Company, Inc. | Joint restraint assembly |
US20150152988A1 (en) * | 2012-06-14 | 2015-06-04 | Basf Coatings Gmbh | Locking-Ring Closure Having At Least One Screw Lock |
US9933096B2 (en) * | 2012-06-14 | 2018-04-03 | Basf Coatings Gmbh | Locking-ring closure having at least one screw lock |
US20150086292A1 (en) * | 2013-09-20 | 2015-03-26 | Greatbatch Ltd. | Set screw apparatus |
US9068587B2 (en) * | 2013-09-20 | 2015-06-30 | Greatbach Ltd. | Set screw apparatus |
US10047782B2 (en) | 2013-09-20 | 2018-08-14 | Nuvectra Corporation | Set screw apparatus |
US10190615B2 (en) * | 2014-02-18 | 2019-01-29 | Centrix Aero, LLC | One piece screws for, and methods for making and using, blind side fasteners and systems with free spin feature |
US10830269B2 (en) | 2014-02-18 | 2020-11-10 | Centrix Inc. | One piece screws for, and methods for making and using, blind side fasteners and systems with free spin feature |
US11639734B2 (en) | 2014-02-18 | 2023-05-02 | Centrix Inc. | One piece screws for, and methods for making and using, blind side fasteners and systems with free spin feature |
US11746816B2 (en) | 2014-02-18 | 2023-09-05 | Centrix Inc. | One piece screws for, and methods for making and using, blind side fasteners and systems with free spin feature |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
RU2659408C2 (en) | Electrical terminal | |
US1487682A (en) | Electric-circuit terminal | |
JP2007533083A (en) | Switchgear | |
US2712123A (en) | Electrical connection terminal assembly | |
JPH0426186B2 (en) | ||
US2458511A (en) | Combined switch stud and fuse clip | |
US2496145A (en) | Wire terminal mounting | |
US2820213A (en) | Pin jack assembly | |
US2124083A (en) | Fuse panel | |
US2589084A (en) | Current transformer short circuiting switch | |
US3056872A (en) | Plug-in fuse receptacle | |
KR200410105Y1 (en) | Over torque preventing structure for junction box | |
US2151807A (en) | Cable terminal | |
US2002434A (en) | Convenience outlet | |
KR970003742Y1 (en) | Terminal cover of circuit breaker | |
US2937361A (en) | Bushing terminal guard | |
US973096A (en) | Plug-switch. | |
US2241052A (en) | Electric switch | |
US662234A (en) | Circuit-closing device. | |
US1310182A (en) | Planoqbaph co | |
US1653354A (en) | Electric switch | |
KR19990022973U (en) | Plug terminal | |
JPH0528870A (en) | Terminal device of electric appliance | |
JPH0644034Y2 (en) | Terminal device | |
US2644143A (en) | Electrical receptacle having screwtype socket and center contact guide |