US1874334A - Locking means for separable electric fittings - Google Patents
Locking means for separable electric fittings Download PDFInfo
- Publication number
- US1874334A US1874334A US330050A US33005029A US1874334A US 1874334 A US1874334 A US 1874334A US 330050 A US330050 A US 330050A US 33005029 A US33005029 A US 33005029A US 1874334 A US1874334 A US 1874334A
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- US
- United States
- Prior art keywords
- plug
- fitting
- socket
- fittings
- separable
- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
- H01R13/6392—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap for extension cord
Definitions
- This invention relates to locking means for separable electric fittings.
- my invention relates to locking means for separable electric fittings.
- rovide a separable electric fitt ng with improved means to lock the plu member to the receptacle or socket mem r;
- Fig. 1 is a front elevation view showing my invention as applied to a connecting plug II and socket with the lock in unlocked position and the lug and socket separated.
- Fig. 2 is a ront elevation view of the parts shown in Fig. 1, but with the plug and socket en aged.
- ig. 3 is a view similar to Fig. 2, except that the lock is in locked position and the electric cables are shown.
- Fig. 4 is a plan view of the invention as shown in Fig. 3. r
- arms 7 and 8 Extending from opposite sides of an outwardly ofi'set flange 6 on the ring 4- are arms 7 and 8, the free ends of which are shaped to form gripping jaws 9 and 10 and In 11 and 12 laterally pro ecting therefrom WhlOh lugs are apertured to receive '0 clamping screws 13 to clamp the jaws together and in this way grip the cable C leading to the lug contacts.
- a strain relief fitting of exactly the same structure as the fitting thus far described in connection with the plug 1.
- the cable receiving ends of the plug and socket are identical and formed with nobs 14 which engage the sides of the arms 7 and 8 to prevent rotation q of the strain relief fittings upon the plug and socket.
- the flange G of the ring 4 is cut away for a short distance adjacent one side of each of the arms as 7 and 8 to form notches 15 diametrically opposite to each other.
- the lugs 18 are bent over the flange 6 of the ring 5. It is now apparent that the locking member may be rotated around the socket between the arms 7 and 8 of the strain relief fitting thereon 8 thelngs 18 engaging the arms 7 and 8 and preventing any further rotation of the lockmg member.
- the locking members legs 17 which are of suifi- B5 cient length to extend beyond the flange of the plugs strain fitting member, have their ends bent over the said flange, formin toes 19 capable of sliding on the flange, but olding the plug and socket together.
- locking member 16 may be rotated with respect to both the plug and socket, but it normally prevents their separation. However when the locking member is rotated to a position where the fingers 19 of the legs 17 on the locking member are in registry with the notches 15 in the flange 6 the strain fitting on the plug member, the plug and socket may be separated, but when the locking member is rotated to any other position the toes must en age the flange, and hence the plug and soc et may not be separated.
- a separable electric fitting having plug and socket members and a strain relief fitting on one of said members, locking means on the other of said members engaging with said fitting for holding said plug and socket members together.
- a separable electric fitting having plug and socket members in combination with a strain relief fitting on one of said members, locking means connected with the other member, said locking means having legs co-operating with said fitting to hol said plug and socket members to ether.
- a separable e ectric fitting having plug and socket members in combination with a strain relief fitting on one of said members, said strain relief fitting having a flange with a notch therein, and lockin means having legs thereon cooperatin wit said flange to lock said members toget er or with said notch to permit said members to be separated.
- a separable electric fitting having plug and socket members in combination with strain relief fittin thereon, and a locking member co-operating with said fittings for holding said plug and socket members together.
- a separable electric fitting having plug and socket members in com ination with strain relief fittings thereon said fittings comprising rings with flanges thereon, and a locking member co-operating therewith for holding said plug and socket members together.
- a separable electric fitting having plug and socket members in combination with strain relief fittings thereon said fittings comprising rings with flanges thereon, the'fiange on one fitting having a notch therein and a locking member co-operating with said notched flange for holding said plug and socket members together.
- a separable electric fitting having plug and socket members in combination with train ef fittings thereon said fittings comthe other fitting
- a separable electric fitting having plu and socket members in combination wit strain relief fittings thereon, said fittings comprising rings with fingers thereon, and a. locking member having legs with toes thereon co-operating with one of said fittings for holding said plug and socket members together.
- a separable electric fittin having plug and socket members in com ination with strain relief fittings thereon, said fittin comprising rings with flanges thereon, t e flange on one fittin having notches therein, and a locking mem er having legs with toes thereon co-operating with said notches and their adjoining flange to permit separation or locking together of said plug and socket members.
- a separable electric fitting having plu and socket members in combination witfl strain relief fittings thereon, said fittin comprising rings with flanges thereon, t e flange on one fitting having notches therein, and a locking member having legs and lugs co-operating with said fittings for holding said plug and socket members together.
- a separable electric fitting having plug and socket members in combination with strain relief fittings thereon, said fittings comprising rings with flanges thereon, the
- a separable electric fitting having plug and socket members in combination with strain relief fittings thereon, said fittings comprising rings with flanges thereon, the flange on one fitting having notches therein, and a locking member having lugs engaging said locking member also having legs with toes thereon co-operating with said notches and their adjoining flange whereby separation or looking together of said plug and socket members may be accomplished.
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Description
Aug. 30, 1932. NERO 1,874,334
LOCKTNG MEANS FOR SEPARABLE ELECTRIC FITTINGS Filed Jan. 5, 1929 INVENTOR ARVID H. NERO 4-7 Zzz': afidrvzqys Patented Aug. 30, 1932 UNITED STATES PATENT OFFICE ABVID H. mo, OI' WBBT HARTFORD, oomc'rrcur, ASSIGNOR, BY MESNE ASSIGN- METRE nimow-m'r a new anemic courmv, or mmrronn,
CONNECTICUT, L CORPORATION CONNECTICUT moms ms FOB BEPABABLE ELECTRIC FITTINGS Application filed lanuary 8, 1929. Serial 170. 830,050.
This invention relates to locking means for separable electric fittings. Among the objects of my invention are: (1) to rovide a separable electric fitt ng with improved means to lock the plu member to the receptacle or socket mem r; (2) to provide a locking means for a lug and receptacle of an electric fitting whic W111 stand hard usage and abuse without failure; (3) to improve various features of construction hereinafter more particularly described or shown in the accompanying drawing in which:
Fig. 1 is a front elevation view showing my invention as applied to a connecting plug II and socket with the lock in unlocked position and the lug and socket separated.
Fig. 2 is a ront elevation view of the parts shown in Fig. 1, but with the plug and socket en aged.
ig. 3 is a view similar to Fig. 2, except that the lock is in locked position and the electric cables are shown.
Fig. 4 is a plan view of the invention as shown in Fig. 3. r
8 Fi 5 is a perspective view of the locking mem r. 7
While I have shown my invention as aplied to a plug and socket electric connection, it is not confined to the plug and socket construction shown, but may be applied to any similar separable electric fitting.
In the drawing I have shown the usual plug member 1, having contact fingers 2 to engage with receptacle contacts (not shown) in the usual socket 3. The pin has on it a strain relief fittin similar to t at shown in my copending app ication, Serial No. 107,400, filed May 7, 1926, which has become Patent No. 1,837,058 December 15, 1931. The purpose of this fitting is to relieve the strain of the electric cable on the wire terminals of the plug. This fitting consists of a ring 4, adapted to he slipped over the working end of the plug 1 and to rest against an annular shoulder 5 formed thereon. Extending from opposite sides of an outwardly ofi'set flange 6 on the ring 4- are arms 7 and 8, the free ends of which are shaped to form gripping jaws 9 and 10 and In 11 and 12 laterally pro ecting therefrom WhlOh lugs are apertured to receive '0 clamping screws 13 to clamp the jaws together and in this way grip the cable C leading to the lug contacts.
Upon the soc et member 3 there is located a strain relief fitting of exactly the same structure as the fitting thus far described in connection with the plug 1. The cable receiving ends of the plug and socket are identical and formed with nobs 14 which engage the sides of the arms 7 and 8 to prevent rotation q of the strain relief fittings upon the plug and socket.
On the strain relief fitting of the plug the flange G of the ring 4 is cut away for a short distance adjacent one side of each of the arms as 7 and 8 to form notches 15 diametrically opposite to each other.
Located upon the strain fitting rin 5 of the socket 3 is a locking member 16 ormed of a broken annulus having diametrically op- 10 posed legs 17 projecting laterally therefrom toward the working end of the socket and also having lugs 18 projecting laterall therefrom in a direction opposite to the legs 17. To hold the locking member rotat ably on the 78 socket and strain fitting ring 5 the lugs 18 are bent over the flange 6 of the ring 5. It is now apparent that the locking member may be rotated around the socket between the arms 7 and 8 of the strain relief fitting thereon 8 thelngs 18 engaging the arms 7 and 8 and preventing any further rotation of the lockmg member.
To hold the plug and socket together the locking members legs 17 which are of suifi- B5 cient length to extend beyond the flange of the plugs strain fitting member, have their ends bent over the said flange, formin toes 19 capable of sliding on the flange, but olding the plug and socket together.
Thus locking member 16 may be rotated with respect to both the plug and socket, but it normally prevents their separation. However when the locking member is rotated to a position where the fingers 19 of the legs 17 on the locking member are in registry with the notches 15 in the flange 6 the strain fitting on the plug member, the plug and socket may be separated, but when the locking member is rotated to any other position the toes must en age the flange, and hence the plug and soc et may not be separated.
Thus it will be seen that I have provided a simple dependable and rugged means for holding two parts of an electrical fitting together and I have also provided a ver sim 1e and easily operated lock which W1 1 git er hold two parts of an electrical fitting together or release them as desired.
I claim-- 1. A separable electric fitting having plug and socket members and a strain relief fitting on one of said members, locking means on the other of said members engaging with said fitting for holding said plug and socket members together.
2. A separable electric fitting having plug and socket members in combination with a strain relief fitting on one of said members, locking means connected with the other member, said locking means having legs co-operating with said fitting to hol said plug and socket members to ether.
3. A separable e ectric fitting having plug and socket members in combination with a strain relief fitting on one of said members, said strain relief fitting having a flange with a notch therein, and lockin means having legs thereon cooperatin wit said flange to lock said members toget er or with said notch to permit said members to be separated.
4. A separable electric fitting having plug and socket members in combination with strain relief fittin thereon, and a locking member co-operating with said fittings for holding said plug and socket members together.
5. A separable electric fitting having plug and socket members in com ination with strain relief fittings thereon said fittings comprising rings with flanges thereon, and a locking member co-operating therewith for holding said plug and socket members together.
6. A separable electric fitting having plug and socket members in combination with strain relief fittings thereon said fittings comprising rings with flanges thereon, the'fiange on one fitting having a notch therein and a locking member co-operating with said notched flange for holding said plug and socket members together.
7. A separable electric fitting having plug and socket members in combination with train ef fittings thereon said fittings comthe other fitting,
prising rings with flanges thereon, the flange on one fitting having a notch therein, and a locking member havin a leg co-operating with one of said fittings %or holding said plug and socket members to ether.
8. A separable electric fitting having plu and socket members in combination wit strain relief fittings thereon, said fittings comprising rings with fingers thereon, and a. locking member having legs with toes thereon co-operating with one of said fittings for holding said plug and socket members together.
9. A separable electric fittin having plug and socket members in com ination with strain relief fittings thereon, said fittin comprising rings with flanges thereon, t e flange on one fittin having notches therein, and a locking mem er having legs with toes thereon co-operating with said notches and their adjoining flange to permit separation or locking together of said plug and socket members.
10. A separable electric fitting having plu and socket members in combination witfl strain relief fittings thereon, said fittin comprising rings with flanges thereon, t e flange on one fitting having notches therein, and a locking member having legs and lugs co-operating with said fittings for holding said plug and socket members together.
11. A separable electric fitting having plug and socket members in combination with strain relief fittings thereon, said fittings comprising rings with flanges thereon, the
nge on one fitting having notches therein, and a locking member having lugs engaging the other fitting, said locking member also having legs with toes thereon co-operating with said first named fitting whereby locking together or separation of said plug and socket members may be accomplished.
12. A separable electric fitting having plug and socket members in combination with strain relief fittings thereon, said fittings comprising rings with flanges thereon, the flange on one fitting having notches therein, and a locking member having lugs engaging said locking member also having legs with toes thereon co-operating with said notches and their adjoining flange whereby separation or looking together of said plug and socket members may be accomplished.
13. In a separable electrical connector, 1!. pair of-separable devices, flanges on said devices. and a locking member associated with said devices and engaging with said'flanges to hold said devices together.
14. In a separable electrical connector, 0. pair of separable devices, flanges on said devices, one of said flanges being notched, and a locking member associated with said devices and cooperating with said flanges to hold said devices together and cooperating 10 name to this specification.
ARVID H. NERO.
CERTIFICATE OF CORRECTION.
Patent No. 1,874,334. August 30, 1932.
ARVID H. NERO.
certified that error appears in the printed specification of the Page 2, line 74. claim 8,
It is hereby above numbered patent requiring correction as foilows: for the word "fingers. with this correction therein that the same may in the Patent Office.
Signed and sealed this 22nd day of November, A. D. 1932.
conform to the record of the case M. J. Moore,
(Seal) Acting Commissioner of Patents.
" read flanges; and that the said Letters Patent should be read 10 name to this specification.
ARVID H. NERO.
CERTIFICATE OF CORRECTION.
Patent No. 1,874,334. August 30, 1932.
ARVID H. NERO.
certified that error appears in the printed specification of the Page 2, line 74. claim 8,
It is hereby above numbered patent requiring correction as foilows: for the word "fingers. with this correction therein that the same may in the Patent Office.
Signed and sealed this 22nd day of November, A. D. 1932.
conform to the record of the case M. J. Moore,
(Seal) Acting Commissioner of Patents.
" read flanges; and that the said Letters Patent should be read
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US330050A US1874334A (en) | 1929-01-03 | 1929-01-03 | Locking means for separable electric fittings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US330050A US1874334A (en) | 1929-01-03 | 1929-01-03 | Locking means for separable electric fittings |
Publications (1)
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US1874334A true US1874334A (en) | 1932-08-30 |
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Application Number | Title | Priority Date | Filing Date |
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US330050A Expired - Lifetime US1874334A (en) | 1929-01-03 | 1929-01-03 | Locking means for separable electric fittings |
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Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2464893A (en) * | 1945-08-21 | 1949-03-22 | Allen R Ross | Extension cord connection lock |
US2633482A (en) * | 1949-06-03 | 1953-03-31 | Winchester Electronics Inc | Connector with locking device |
US2721313A (en) * | 1951-10-15 | 1955-10-18 | Harvey W English | Clips for electrical connectors |
US2728058A (en) * | 1952-06-25 | 1955-12-20 | Lawrence R Phalen | Means for securing and attachment plug to an electrical receptacle |
US2864378A (en) * | 1954-12-03 | 1958-12-16 | Mcneil Machine & Eng Co | Protectors for tubing |
US3004236A (en) * | 1959-12-23 | 1961-10-10 | Itt | Connector plug assembly |
US3020516A (en) * | 1958-04-25 | 1962-02-06 | Pass & Seymour Inc | Electrical connector body and cap construction with improved conductor securing means |
US3059206A (en) * | 1959-07-24 | 1962-10-16 | Packard Bell Electronics Corp | Cable connector clamp |
US3192500A (en) * | 1961-01-05 | 1965-06-29 | Gen Motors Corp | Safety fastening means |
US3254321A (en) * | 1961-01-05 | 1966-05-31 | Gen Motors Corp | Safety fastening means |
US3316523A (en) * | 1964-11-20 | 1967-04-25 | George J Trangmar | Electrical cord accessory |
US3370264A (en) * | 1966-07-01 | 1968-02-20 | Itt | Electrical connector captivated terminal release tool |
US4204738A (en) * | 1978-03-31 | 1980-05-27 | The Toro Company | Electrical connector retaining device |
FR2453514A1 (en) * | 1979-04-06 | 1980-10-31 | Cableform Ltd | CONNECTOR CLIP |
FR2517481A1 (en) * | 1981-11-30 | 1983-06-03 | Sintra Alcatel Sa | Connector coupling sonar cable to immersed appts. - has tubular support with access opening for lock, containing tube with watertight joint on shoulder section |
DE3408115A1 (en) * | 1984-03-06 | 1985-09-19 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Multi-pole electrical plug connection, of rectangular shape, which can be locked and can be pushed off |
-
1929
- 1929-01-03 US US330050A patent/US1874334A/en not_active Expired - Lifetime
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2464893A (en) * | 1945-08-21 | 1949-03-22 | Allen R Ross | Extension cord connection lock |
US2633482A (en) * | 1949-06-03 | 1953-03-31 | Winchester Electronics Inc | Connector with locking device |
US2721313A (en) * | 1951-10-15 | 1955-10-18 | Harvey W English | Clips for electrical connectors |
US2728058A (en) * | 1952-06-25 | 1955-12-20 | Lawrence R Phalen | Means for securing and attachment plug to an electrical receptacle |
US2864378A (en) * | 1954-12-03 | 1958-12-16 | Mcneil Machine & Eng Co | Protectors for tubing |
US3020516A (en) * | 1958-04-25 | 1962-02-06 | Pass & Seymour Inc | Electrical connector body and cap construction with improved conductor securing means |
US3059206A (en) * | 1959-07-24 | 1962-10-16 | Packard Bell Electronics Corp | Cable connector clamp |
US3004236A (en) * | 1959-12-23 | 1961-10-10 | Itt | Connector plug assembly |
US3192500A (en) * | 1961-01-05 | 1965-06-29 | Gen Motors Corp | Safety fastening means |
US3254321A (en) * | 1961-01-05 | 1966-05-31 | Gen Motors Corp | Safety fastening means |
US3316523A (en) * | 1964-11-20 | 1967-04-25 | George J Trangmar | Electrical cord accessory |
US3370264A (en) * | 1966-07-01 | 1968-02-20 | Itt | Electrical connector captivated terminal release tool |
US4204738A (en) * | 1978-03-31 | 1980-05-27 | The Toro Company | Electrical connector retaining device |
FR2453514A1 (en) * | 1979-04-06 | 1980-10-31 | Cableform Ltd | CONNECTOR CLIP |
FR2517481A1 (en) * | 1981-11-30 | 1983-06-03 | Sintra Alcatel Sa | Connector coupling sonar cable to immersed appts. - has tubular support with access opening for lock, containing tube with watertight joint on shoulder section |
DE3408115A1 (en) * | 1984-03-06 | 1985-09-19 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Multi-pole electrical plug connection, of rectangular shape, which can be locked and can be pushed off |
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