US1297772A - Concealed-terminal receptacle. - Google Patents

Concealed-terminal receptacle. Download PDF

Info

Publication number
US1297772A
US1297772A US18312417A US18312417A US1297772A US 1297772 A US1297772 A US 1297772A US 18312417 A US18312417 A US 18312417A US 18312417 A US18312417 A US 18312417A US 1297772 A US1297772 A US 1297772A
Authority
US
United States
Prior art keywords
insulator
terminals
concealed
cylindrical portion
receptacle
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
US18312417A
Inventor
Harry C Adam
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.)
REFLECTOLYTE Co
Original Assignee
REFLECTOLYTE Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by REFLECTOLYTE Co filed Critical REFLECTOLYTE Co
Priority to US18312417A priority Critical patent/US1297772A/en
Application granted granted Critical
Publication of US1297772A publication Critical patent/US1297772A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/74—Devices having four or more poles, e.g. holders for compact fluorescent lamps
    • H01R33/76—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket
    • H01R33/7607—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket the parallel terminal pins having a circular disposition
    • H01R33/7614—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket the parallel terminal pins having a circular disposition the terminals being connected to individual wires
    • H01R33/7628—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket the parallel terminal pins having a circular disposition the terminals being connected to individual wires the wires being connected using solder

Definitions

  • minal Receptacles of which the following is a full, clear, and exact description, such as will enable others skilled in the art to i which it appertains to make and use the same.
  • This invention relates to electrical receptacles of the type that comprise a onepiece insulator provided with concealed terminals.
  • the main object of my present invention is to provide an efficient electrical receptacle of the type referred to which is so con structed that the workman who installs same has easy access to the binding screws of the terminals and can see said screws clearly during the operation of connecting the supply wires to the terminals, thereby tending to reduce the liabilityof producing a short circuit during the operation of installing the electrical receptacle.
  • Figure l of the drawings is a side elevational view of a concealed electrical receptacle constructed in accordance with my invention.
  • Fig. 2 is a vertical sectional view of same, taken on the line 22' of Fig. 1.
  • Fig. 3 is a bottom plan view of the receptacle.
  • Fig. 4 is a detail horizontal sectional view taken on the line 4-4 of Fig. 1.
  • A designates the insulator of the receptacle which consists of a one-piece member formed of orcelain or other suitable insulating material and provided with a top portion 1 and a cylindrical portion 1 that are integrally connected together.
  • a screw-threaded shell 2 of conventional form is arranged inside of the cylindrical portion 1 of the insulator and is connected to the top portion.
  • the contact 3 of the receptacle is provided with a terminal 4 that is equipped with a binding screw 4?
  • the contact 5 is provided with a terminal 6 that is equipped with a binding screw 6*.
  • Said terminals 4 and 6 are arranged diametrically opposite each other in openings 7 formed in the side wall of the cylindrical portion 1 of the insulator in proximity to the top portion 1 of the insulator.
  • each of said openings 7 can be provided with a lateral offset 7, preferably formed by a groove in the outer surface of the cylindrical portion 1 of the insulator, so as to receive the supply wire at, as shown in Fig. 4, and thus permit the supply wires to be arranged substantially tangential to the cylindrical portion 1 of the insulator.
  • the top portion 1 of the insulator is enough larger than the cylindrical portion 1 to produce a, flange at the upper end of the insulator that forms an adequate protection for the terminals.
  • the terminals 4 and 6 are also preferably arranged some distance inwardly from the outer surface of the cylindrical portion 1 of the insulator so that the binding screws and the ends of the supply wires that are connected to the terminals will be located within the marginal limits of the cylindrical portion 1 of the
  • the top portion 1 of the insulator is provided with two laterally-project ing ears arranged diametrically opposite each other, as shown in Fig. 3, and each is provided with a hole 8* through which screws can be inserted. so as to secure the insulator to a ceiling or other supporting structure arranged above the insulator.
  • An electrical receptacle of the construction above described complies with all of the requirements which fire prevention officials have decided are essential for so-called concealed terminal'receptacles, and it also has a feature that none of the one-piece concealed terminal receptacles now in general use possess. Namely, the terminals of same and the binding screws on said terminals are clearly exposed to view, thus permitting the workman who installs the terminal to clearly see what he is doing when connecting the supply wires to the terminals, and consequently, eliminating the possibility of producing shortcircuit, as so often occurs in connecting up concealed terminal receptacles of the kind now in eneral use.
  • An electrical receptacle comprising a, onepiece insulator provided with a cylindrical portion and a top portion integrally connected together, said top portion projecting laterally beyond said cylindrical portion so as to form a protecting flange, laterally projecting ears on said top portion through which screws or'connecting devices can e passed, the cylindrical portion of the insulator being provided in its sides just below said flange with openings that extend clear through same, contacts carried by said insulator and provided with terminals arranged in said openings in such a manner that the binding screws on the terminals will lie within the marginal limits of the cylindrical portion of the insulator, and wire receiving grooves extending tangentially from said openings.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Description

H. C, ADAM.
CONCEALED TERMINAL RECEPTACLE.
AFPLICATION F lLED JULY 27.1917.
Patented Mar. 18, 1919.
jwemg 6' (2?.
HARRY C. ADAM, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE REFLECTOLYTE COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.
CONCEALED-TERMINAL RECEPTACLE.
Specification of Letters Patent.
Patented Mar. 18, 1919.
minal Receptacles, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to i which it appertains to make and use the same.
This invention relates to electrical receptacles of the type that comprise a onepiece insulator provided with concealed terminals.
The main object of my present invention is to provide an efficient electrical receptacle of the type referred to which is so con structed that the workman who installs same has easy access to the binding screws of the terminals and can see said screws clearly during the operation of connecting the supply wires to the terminals, thereby tending to reduce the liabilityof producing a short circuit during the operation of installing the electrical receptacle.
Figure l of the drawings is a side elevational view of a concealed electrical receptacle constructed in accordance with my invention.
Fig. 2 is a vertical sectional view of same, taken on the line 22' of Fig. 1.
Fig. 3 is a bottom plan view of the receptacle; and
Fig. 4 is a detail horizontal sectional view taken on the line 4-4 of Fig. 1.
Referring to the drawings, which illustrate the preferred form of my invention, A designates the insulator of the receptacle which consists of a one-piece member formed of orcelain or other suitable insulating material and provided with a top portion 1 and a cylindrical portion 1 that are integrally connected together. A screw-threaded shell 2 of conventional form is arranged inside of the cylindrical portion 1 of the insulator and is connected to the top portion. 1 of the same by means of screws, and the two terminals of the receptacle are arranged in openings in the cylindrical portion 1 of the insulator in such a manner that they are protected by the top portion 1 of the insulator, thus producing an electrical receptacle that complies with all of the requirements of tire prevention oflicials as to the location of the terminals, but which has the distinguishinsulator.
ing and desirable characteristic of accessible binding screws that can be clearly seen by the workmen during the operation of connecting the supply wires to the terminals of the receptacle. In the form of my invention herein shown the contact 3 of the receptacle is provided with a terminal 4 that is equipped with a binding screw 4?, and the contact 5 is provided with a terminal 6 that is equipped with a binding screw 6*. Said terminals 4 and 6 are arranged diametrically opposite each other in openings 7 formed in the side wall of the cylindrical portion 1 of the insulator in proximity to the top portion 1 of the insulator. If desired, each of said openings 7 can be provided with a lateral offset 7, preferably formed by a groove in the outer surface of the cylindrical portion 1 of the insulator, so as to receive the supply wire at, as shown in Fig. 4, and thus permit the supply wires to be arranged substantially tangential to the cylindrical portion 1 of the insulator. The top portion 1 of the insulator is enough larger than the cylindrical portion 1 to produce a, flange at the upper end of the insulator that forms an adequate protection for the terminals. The terminals 4 and 6 are also preferably arranged some distance inwardly from the outer surface of the cylindrical portion 1 of the insulator so that the binding screws and the ends of the supply wires that are connected to the terminals will be located within the marginal limits of the cylindrical portion 1 of the The top portion 1 of the insulator is provided with two laterally-project ing ears arranged diametrically opposite each other, as shown in Fig. 3, and each is provided with a hole 8* through which screws can be inserted. so as to secure the insulator to a ceiling or other supporting structure arranged above the insulator.
An electrical receptacle of the construction above described complies with all of the requirements which fire prevention officials have decided are essential for so-called concealed terminal'receptacles, and it also has a feature that none of the one-piece concealed terminal receptacles now in general use possess. Namely, the terminals of same and the binding screws on said terminals are clearly exposed to view, thus permitting the workman who installs the terminal to clearly see what he is doing when connecting the supply wires to the terminals, and consequently, eliminating the possibility of producing shortcircuit, as so often occurs in connecting up concealed terminal receptacles of the kind now in eneral use.
Having thus described my invention, what I claim, and desire to secure by Letters Patent, is:
An electrical receptacle, comprising a, onepiece insulator provided with a cylindrical portion and a top portion integrally connected together, said top portion projecting laterally beyond said cylindrical portion so as to form a protecting flange, laterally projecting ears on said top portion through which screws or'connecting devices can e passed, the cylindrical portion of the insulator being provided in its sides just below said flange with openings that extend clear through same, contacts carried by said insulator and provided with terminals arranged in said openings in such a manner that the binding screws on the terminals will lie within the marginal limits of the cylindrical portion of the insulator, and wire receiving grooves extending tangentially from said openings. 2
HARRY C. ADAM.
US18312417A 1917-07-27 1917-07-27 Concealed-terminal receptacle. Expired - Lifetime US1297772A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US18312417A US1297772A (en) 1917-07-27 1917-07-27 Concealed-terminal receptacle.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18312417A US1297772A (en) 1917-07-27 1917-07-27 Concealed-terminal receptacle.

Publications (1)

Publication Number Publication Date
US1297772A true US1297772A (en) 1919-03-18

Family

ID=3365315

Family Applications (1)

Application Number Title Priority Date Filing Date
US18312417A Expired - Lifetime US1297772A (en) 1917-07-27 1917-07-27 Concealed-terminal receptacle.

Country Status (1)

Country Link
US (1) US1297772A (en)

Similar Documents

Publication Publication Date Title
US1297772A (en) Concealed-terminal receptacle.
WO2017144467A1 (en) Voltage measuring device for the use in medium or high voltage application
US2124083A (en) Fuse panel
US745173A (en) Electrical receptacle.
US921196A (en) Detachable plug.
US1435651A (en) Fuse
US1090528A (en) Electrical border-light receptacle.
US768786A (en) Weatherproof lamp-socket.
US2113918A (en) Outlet box construction
US965103A (en) Electrical contact.
US1263610A (en) Circuit-opening device.
US1647697A (en) Electrical connecter
US968261A (en) Flush attachment plug-receptacle.
US1113528A (en) Fuse-block.
US954642A (en) Electric receptacle.
US784775A (en) Lamp-socket.
US954537A (en) Electrical cut-out.
US809864A (en) Insulated receptacle for panel and switch boards.
US1934442A (en) Fuse cut-out and the like
US979197A (en) Molding-receptacle.
US396920A (en) Electric cut-out device
US660154A (en) Receptacle for incandescent lamps.
US953362A (en) Cluster-socket.
US1947118A (en) Lighting fixture
US1274552A (en) Electrical fitting.