US411153A - Samuel c - Google Patents

Samuel c Download PDF

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Publication number
US411153A
US411153A US411153DA US411153A US 411153 A US411153 A US 411153A US 411153D A US411153D A US 411153DA US 411153 A US411153 A US 411153A
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United States
Prior art keywords
cord
jaws
plug
handle
samuel
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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Publication date
Application granted granted Critical
Publication of US411153A publication Critical patent/US411153A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/023—Chucks for screw-threads
    • 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
    • Y10S411/918—Threadless 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/15—Threaded grip
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17231—Pivoted jaws
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17231—Pivoted jaws
    • Y10T279/17239—Moving-cam actuator
    • Y10T279/17247—Threaded cam sleeve
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/53—Split end with laterally movable opposed portions
    • Y10T403/535—Split end with laterally movable opposed portions with separate force-applying means

Definitions

  • My invention relates to iiexible cords and plugs designed for making the connection upon electric switch-boards, and more especially to the connection of the cord with the plug.
  • FIG. 1 is a sectional view of a cord and its terminal plug attached together in accordance with my invention.
  • Fig. 2 shows the plug with the rubber handle removed, the clamps being separated to admit the end of the spirally-wound flexible conducting-wire.
  • the clamp consists of the pieces a and b, attached to the rear end of the metallic stem of the plugA by the pin or pivot c.
  • Handle d is provided on the outside with rubber e, the inner portion being metal, preferably brass, which is tapped out to correspond to the thread f, provided on the stein of the plug.
  • the plug-handle beyond the female thread is bored out, so that the opening will be slightly 3 5 tapering,thusncorresponding to the shape of thepivot'ed piecesbr jaws a b when closed over the cord, as shown in Fig. l.
  • the handle d In order to attach the cord to the plug the handle d is slipped over the cord, and the tip of the 4o cord is then placed between the jaws, s o that the insulating covering will come between the jaws.
  • the handle is then placed over the jaws and screwed down over the thread f. Owing to the shape of the jaws and that 45 of the bore of the handle, the jaws are inade to firmly clasp the core and hold at the same time the covering of the cord when the handle is lin place, as shown in Fig. 1. Plugs may thus be readily connected and disconnected 5c from their cords as occasion may require.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Adornments (AREA)

Description

(mmdel') s. @.LAPPBRTY.
TBRMINALPLUG ATTAGHMBNT P0P. FLEXIBLE ELECTRIG comas. No. 411.153. Patented Sept. 17, 1889.
N. PETERS, Pham-Lithography, wumngmn. D. c.
UNITED STATES PATENT OFFICE.
SAMUEL C. LAFFERTY, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE VESTERN ELECTRIC COMPANY, OF SAME PLACE.
TERMINAL PLUG ATTACHMENT FOR FLEXIBLE ELECTRIC CORDS.
SPECIFIGATIQN forming part of Letters Patent No. 411,153, dated september 17, 188e.
V Application led September 5, 1887. Serial No.248,818. (No model.)
To @ZZ whom it may concern:
Be it known that I, SAMUEL C. LAEEERTY, a citizen of the United States, residing at Chicago, in the countjv of Cook and State of Illinois, have invented a certain new and useful Improvementin Terminal Plug Attachments `for Flexible Electric Cords, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specication.
My invention relates to iiexible cords and plugs designed for making the connection upon electric switch-boards, and more especially to the connection of the cord with the plug.
My invention is illustrated in the accompanying drawings, in which- Figure l is a sectional view of a cord and its terminal plug attached together in accordance with my invention. Fig. 2 shows the plug with the rubber handle removed, the clamps being separated to admit the end of the spirally-wound flexible conducting-wire.
Like parts are indicated by similar letters of reference in the different gures.
The clamp consists of the pieces a and b, attached to the rear end of the metallic stem of the plugA by the pin or pivot c. Handle d is provided on the outside with rubber e, the inner portion being metal, preferably brass, which is tapped out to correspond to the thread f, provided on the stein of the plug. The plug-handle beyond the female threadis bored out, so that the opening will be slightly 3 5 tapering,thusncorresponding to the shape of thepivot'ed piecesbr jaws a b when closed over the cord, as shown in Fig. l. In order to attach the cord to the plug the handle d is slipped over the cord, and the tip of the 4o cord is then placed between the jaws, s o that the insulating covering will come between the jaws. The handle is then placed over the jaws and screwed down over the thread f. Owing to the shape of the jaws and that 45 of the bore of the handle, the jaws are inade to firmly clasp the core and hold at the same time the covering of the cord when the handle is lin place, as shown in Fig. 1. Plugs may thus be readily connected and disconnected 5c from their cords as occasion may require.
I therefore do not limit my invention to the precise construction shown, but claim, broadly- The combination, with the projecting core 55 of an electric cord and the insulating covering thereof, of the clasp consisting of two jaws pivoted to the stein of the plug and pressed firmly against the said core and covering by the handle placed over the said jaws 6o and screwed upon the thread provided on the stem, substantially as shown and described.
In witness whereof I hereunto subscribe my name this 15th day of July, A. D. 1887.
SAMUEL C. LAFFERTY.
Witnesses:
GEORGE P. BARTON, WM. M. GILLER.
US411153D Samuel c Expired - Lifetime US411153A (en)

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US411153A true US411153A (en) 1889-09-17

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2497602A (en) * 1948-04-01 1950-02-14 Edwin D Hatch Clamp connector
US2581500A (en) * 1949-02-15 1952-01-08 Fargo Mfg Co Inc Transformer terminal connector
US2751567A (en) * 1953-12-30 1956-06-19 Crouse Hinds Co Electrical connector
US2917800A (en) * 1958-10-06 1959-12-22 Detroit Ct Less Grinding Co Brush holder device
US3088086A (en) * 1960-09-22 1963-04-30 Thomas & Betts Corp Connector for conductors
US4681056A (en) * 1985-10-04 1987-07-21 Outboard Marine Corporation Outboard motor extension handle assembly

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2497602A (en) * 1948-04-01 1950-02-14 Edwin D Hatch Clamp connector
US2581500A (en) * 1949-02-15 1952-01-08 Fargo Mfg Co Inc Transformer terminal connector
US2751567A (en) * 1953-12-30 1956-06-19 Crouse Hinds Co Electrical connector
US2917800A (en) * 1958-10-06 1959-12-22 Detroit Ct Less Grinding Co Brush holder device
US3088086A (en) * 1960-09-22 1963-04-30 Thomas & Betts Corp Connector for conductors
US4681056A (en) * 1985-10-04 1987-07-21 Outboard Marine Corporation Outboard motor extension handle assembly

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