Abstract: The cutter head of a reamer carries a circular tool bit and two guide members. Each guide member has an outer-most edge at the furthest distance from the center of rotation of the tool and slanted edges inclined at progressively greater angles from the outer edge towards the front of the tool where the initial cut takes place. The first slanted edge, at an angle of less than 10 degrees and preferably between 3 and 5 degrees, intersects the outer-most edge at a point which lags the extreme point on the tool bit by about 0.4 mm in the direction of advance of the tool. The first slanted edge extends at least to the radial plane containing the extreme point of the tool bit. Thereafter, a slanted edge at an angle inclined between 15 and 25 degrees extends in the forward direction, to be followed by a third slanted edge inclined at an angle to the outer-most edge of between 30 and 75 degrees.

Abstract: A portable milling tool for milling pipes, tubes, cylinders, and the like has an expandable sleeve at one end thereof for securing and centering the tool to a workpiece. An adjustable in-line rod connects the sleeve to the tool and permits the sleeve to release or secure the workpiece. An in-line shaft moves the tool into or out of engagement with the workpiece. The tool also is of compact design allowing it to be used in on-site situations wherein tool size is a problem as in milling boiler tubes.

Abstract: An electrical connector comprises a housing formed with bores opening in an end wall thereof and locking arrangement for holding an electrical terminal in each of the bores, and a cover including an end wall and a peripheral wall. The cover is formed with partitions defining grooves extending inwardly from a predetermined portion of the peripheral wall thereof. The cover is formed also with projections at ends of some of the partitions. Cutouts are formed in the remaining portion of the peripheral wall of the cover. The housing has slots for receiving the projections of the cover and projections for engaging in the cutouts of the cover.

Abstract: A connector adapted for connection to the terminal pins of an electrical or electronic device or circuit and which includes a planar contact assembly which is formed in a stamped integral planar frame retained within a two-piece housing with constituents of the housing operative to retain corresponding portions of the frame and wires connected thereto. The frame includes contact members and integral intermediate members which provide a unitary structure for ease of fabrication and handling. The unitary frame is installed in the housing as a unit and intermediate portions of the frame are later severed from the frame to provide individual contacts, each electrically connected to a respective wire of an associated cable.

Abstract: A forward facing connectorized terminal block is provided which contains an array of wire wrap or insulation displacement terminals in a forward facing terminal field readily accessible for cross connection to the telecommunications wires. Connectorized cables from telecommunications equipment are plugged into mating connectors mounted on the terminal block and which are wired to the rear terminal portions of the terminal field. The terminal block is extremely compact and is easily attached and removed by a snap action mounting bracket.

Abstract: A side access panel and associated rear fanning strip for enclosing the otherwise open side of a telephone distribution frame connector assembly. The fanning strip interconnects a rear facing edge of the access panel to a rear edge portion of assembly without the use of fasteners. An engaging means such as a clamping strip may also be included as part of the access panel to engage a front facing edge of the assembly to provide a more secure mounting of the panel over the open side.

Abstract: A connector is positioned at any selected location along an elongated electrical source in order to provide an electrical outlet where desired. The electrical source has a slot extending along its length, and a lengthwise extending electrical contact within the slot which is engaged by a connector contact on a contact member on the connector when the contact member is inserted in the slot. The contact member is shaped so that the connector contact is held in engagement against the lengthwise extending contact. The connector is a two-piece unit, with a contact unit including the contact member and a clamping unit which engages against the upper surface of the electrical source to hold the connector unit in a desired position. Bolts are provided to draw the clamping unit and the contact unit together to provide clamping at a desired position along the electrical source. The clamping unit includes outlets for providing electrical power to an appliance.

Abstract: A mounting device for a fluorescent lamp includes a socket which is swingably supported in a socket holder for being movable between an inclined position and an operational position and is provided with a socket body and a locking member extending in axial direction rearwardly away from the connection of the lamp to the socket body. The socket holder has an opening through which the socket body projects with its locking member in order to encompass the respective inner surface of the opening in a pinless hinge-like member. For limiting the swiveling movement of the socket, the socket body is provided with a stop member which cooperates with the innerside of the holder.

Abstract: A connecting device for ignition cables and a component in motor vehicle ignition system having a plurality of ignition cables with a L-shape hood of elastic materials which is attached to each of the cable terminals, housing of connecting device with hood supporting member for holding the hood in a mating alignment to outside terminals, and a locking member in the housing.

Abstract: A specially constructed partition member subdivides a splice case into separate hermetically isolated compartments. A plurality of insulated conductors are wired through the partition member, with seals therebetween, and optionally fitted with multi-pair plug connectors at one or both ends. Incoming cables are fitted, as needed, with plug connectors for separable connection to any mating connectors on the pass through conductors on the respective side of the partition member. The parts of the splice case housing are independently separable from the partition member to permit reentry and access to any compartment.

Abstract: An improved quick clip type connecter block for telephone use in which exposed metallic terminals are mounted upon discrete supporting structure each separated from adjacent structure by a substantial air gap to inhibit the formation of short circuits by increasing the effective length of the path over which progressively growing corrosed materials must travel to establish a conductive path between adjacent terminals.

Abstract: To provide a low-profile socket for a single-ended high-pressure discharge lamp, a ceramic body is formed with a recess and includes two connection terminal elements (8, 9) secured thereto. A separating wall (7) subdivides the recess in the socket body into two chambers (4, 5; 6), one each of the contact terminal elements being located in a respective chamber (8:4-5; 9:6). The socket body (2) is formed with an access opening (5, 18) to the lamp terminal connection end portions (10, 11) of the connection terminal elements and closed off towards the lamp base (FIG. 3:21) by cover plates (16, 17) presenting a flat engagement surface for matching surfaces on the lamp base. The separating wall (7) which subdivides the socket into the two chambers insures high resistance against high-voltage flash-over, which may be in the order of 25 kV during hot-starting ignition.

Abstract: A cover module (1) of an adaptor for single-based fluorescent lamps is prded with a cylindrical element, having a cross-sectionally rectangular recess (2) therein, for receiving the base of the lamp. Spring elements (5) for gripping the base are formed on opposing interior sidewalls of the recess (2). The lower ends (6) of the spring elements (5) are integrally formed with the cover module (1) and the play or travel of each of their upper ends (7) is limited by a stop (10) formed on the cover module (1). Between the upper (7) and lower (6) ends, detents (8) are formed on the spring elements (5) forcibly engage behind, in the direction of lamp insertion, cam surfaces (12) on the lamp base. The force, with which the lamp base is held in the cover module (1), is selectable within a certain range, dependent upon the spacing of the play-limiting stops (10), thus assuring a secure mechanical engagement of the lamp in the cover module socket.

Abstract: A telecommunications terminal block provides service wire terminations within cells that are electrically and physically isolated from other cells in the block, and from the environment, thereby effectively preventing corrosion and shorting by eliminating electrical bridging between tip and ring service wire circuits. Cell 21 in the dielectric terminal block body 10 contains a pair of spaced-apart contact surface members 32, 35 that are forced into compression engagement upon an inserted service wire end 26 by threaded advancement of a dielectric plug 13 situated within the cell. A conduit bore 12 in the block wall directs insertion of the stripped service wire 16 between the contact members prior to plug advancement, and a gasket member 38 extending across the annular space between the plug and the cell wall, with an optional cell-filling gel 47, ensures exclusion of the environment from the cell and isolation between tip and ring circuits.

Abstract: An electrical connector comprises a housing having a pair of identical half-shells (12, 12') adapted to be clamped together to contain a terminal block (13) terminating individual conductors of a flat cable (15) (FIGS. 1, 3) or wire bundles (16) (FIGS. 2, 4, 5). A pair of conductor locating members (18, 18') have opposite faces (31, 32) formed respectively with hooked flat cable engaging ribs (24) and wire bundle receiving openings (34) for clamping flat cable (15) or receiving wire bundles (16) between them respectively. A rear wall (22) of each housing shell (12, 12') is provided with knock-outs (27, 27') removable to provide apertures for wire bundles (16).

Abstract: An improved electric power distribution track comprises a metal-reinforced duct and at least three conductors extending along the length thereof. The duct is shaped to have a top wall, a pair of lateral sidewalls and a lengthwise bottom opening, and is composed of a correspondingly shaped metal-made core channel member covered by an insulation sheath of a plastic material. Three conductors are disposed on the inner sheath in a trigonous arrangement with one of the conductors on the top wall and the two others on the opposite sidewalls. Integrally projecting from the corresponding portions of the inner sheath are support members for holding the respective conductors at positions spaced inwardly from the inner periphery of the sheath. The support member on the top wall is connected to those on each of the sidewalls by a connection rib integrally extending therebetween for reinforcing the support members by one another to thereby retain the conductors held thereby in positions.

Abstract: The invention relates to a device for assembling modular blocks of electric equipment side by side. The two molded cases of modular elements are first of all coupled together in the manner of a hinge by means of two hooks which fit respectively into two mating housings, then are applied one against the other by pivoting one of the cases, and are finally locked together by means of a flexible tongue which snap-fits on to a mating part of the other case.

Abstract: A receptacle connector (10) has a plurality of plug-receiving cavities (24) defined along major sides by either outer major walls (36,38) of the receptacle hood (20) or by lengths of polarizing walls (28) parallel thereto, and along minor sides or ends thereof by minor walls (42) of the hood (20). Individual plug connector modules (100) such as single-row modules (100) receivable into the cavities (24) each include along one major side (124) thereof an elongate polarizing recess (128) to receive a polarizing wall (28). One outer major wall (38) of the hood (20) includes an elongate inward boss (44) shaped to act as a polarizing wall portion (144) from an end module, and the plug connector modules (100) when ganged together (210) will enter the receptacle section defined by the hood (20) only when in a proper polarized orientation.

Abstract: A device for low voltage electric distribution includes a set of bus bars for feeding a plurality of outlets protected by a circuit breaker apparatuses, characterized in that it comprises a molded insulating structure comprising two vertical parallel walls (1, 2) separated by a horizontal transversal partition (3), with metal rails (10, 20, 30, 40) inserted in the transversal partition and opening onto either side of said partition. One side acts as a support for the bus bars (11, 21, 31, 41) and the other forming power connections (12, 22, 32, 42), with the tips of said power connection being arrange in accordance with the generatrices of a cylinder with a vertical axis situated in the symmetry plane of the structure. The structure, on the side of the supplies is divided by horizontal partitions defining sockets, with each socket capable of receiving an insulating component (66) bearing clamps (71, 72).

Abstract: A quick termination assembly for an electrical connector to a flexible wire. The connector comprises an electrical conductive tube. The tube has separate end opening and side opening to the passage and a ramp facing out of and extending towards the side opening from the passage. The end opening and passage are adapted to receive a bare end of the wire upon insertion therein, the ramp, during such insertion, forcing the bare wire to bend and move along the ramp out of the side opening to a position extended away from the tube. A non-conductive sleeve extends around the wire. The sleeve, as it is forced to slide along the wire and tube, engages the extended bare wire, causing the bare wire to bend against an exterior side of the tube and pass over and encircle the bare wire and tube, thereby gripping and retaining the bare wire and tube in electrical and mechanical contact with each other.