Abstract: In an overhead electric traction system a simple and inexpensive mid-point anchor comprises a mast and, mounted on the upper part of the mast, a cantilever structure comprising a pair of rigid elongate members which lie in a common plane and extended transversely with respect to and lie spaced apart in a direction lengthwise of the track, and which at their ends nearer the track are connected to the mast by a third transversely extending elongate member inclined at an acute angle to the common plane. The ends of the members remote from the track are connected to opposite ends of a rigid bar which extends lengthwise of the track, which is pivotally connected to the mast about a vertical axis and which, at each of its end portions, is connected to the mast by a flexible tie. In the event of an unbalanced load on the catenary, pivotal movement of the cantilever structure about the vertical axis is prevented by one of the flexible ties and the out of balance load is transferred to the mast as a torsional load.

Abstract: A group operated electric circuit disconnect apparatus for a plurality of overhead electric power distribution lines carried on poles. The apparatus includes an elongated extruded base mounted on and extending transversely of a pole. A bracket is connected to an electric circuit component. The elongated base has at least one elongated slot with a reduced dimensioned entry. The bracket is positioned and secured at any position along the base by fasteners having enlarged head portions mating within the slot.

Abstract: In an overhead electric traction system for railways, a simple and inexpensive cantilever structural assembly includes a pole (1) comprising a lower part (3), an upper part (4) which is separately formed with respect to and is mounted on the lower part and to which a cantilever structure (21) is attached and, inter-connected between the upper end of the lower part and the lower end of the upper part, a tubular insulator (3) of plastics insulating material. The insulator (3) will withstand any normal mechanical loading to which the pole (1) will be subjected while it is in service and is of such a shape as to provide the necessary minimum creepage path between neighboring ends of the lower part (3) and upper part (4) of the pole.

Abstract: A lightweight electrical utility line transmission tower is disclosed, which is designed to be easily transported by helicopter or truck. The tower uses a single, hollow support column which is positioned in a foundation hole. The column is directly embedded in the ground, and requires no special auxiliary concrete foundation. Two tapered tower arms are secured to the column in a V-shaped configuration by an improved connection and reinforcing apparatus. Attached to the tower arms is an elongate crossarm to which transmission lines are secured.

Abstract: An auxiliary support system for use with a line-post insulator of an electric power transmission system includes a tension member of electrically insulating material coupled between a tower and the junction of a conductor support with the outboard terminus of the line-post insulator. A clamp formed of two juxtaposed jaws bends downwards to clear the conductor and support, and then bends inwardly to grip the terminus and secure it to the tension member. Attachment of the auxiliary support can be accomplished without disruption of the electric power.

Abstract: An inflatable bladder assembly which is to be located within the hollow interior of a boat mast, which when inflated, is to be pressed against the wall of the interior chamber of the mast. Normally there are elongated wires or cables which are located within the interior chamber of the mast. With the inflatable bladder assembly inflated, these wires and cables will be tightly pressed against the wall of the interior chamber thereby not capable of movement relative thereto and therefore not capable of producing noise. The inflatable bladder assembly is to be composed of a plurality of separate bladder units mounted in a spaced-apart manner on a pressurized air conducting conduit.

Abstract: A suspension system supports a plurality of high voltage electrical conductors forming part of a transmission line in a predetermined spaced pattern relative to one another. The system includes a rigid compression strut arranged to extend generally horizontally between a pair of spaced primary support points. A flexible tension member is suspended below the compression strut and has its opposing ends connected at said primary support points. When the tension member is loaded, it applies compression forces lengthwise of the strut. An array of insulators is disposed below the flexible tension member for supporting the plurality of electrical conductors in the preselected pattern relative to one another. At least certain of these insulators are connected to the tension member so that the latter bears a portion of the total loading imposed by the conductors.

Abstract: The invention concerns an overhead electric traction system of the kind in which current is collected from an overhead contact wire by means of a collector carried on the roof of a vehicle and extending transversely of the contact wire. The contact wire is supported, at spaced positions along the route of the system, by an overhead structure comprising two transversely spaced upstanding members, and extending between and connected to the upstanding members, a transversely extending beam. Each of the upstanding members is so installed near its lowermost end as to permit limited pivotal movement of the member at least about an axis extending lengthwise of the route of the system and limited relative movement is permitted between the beam and the upstanding member at least about an axis extending lengthwise of the route of the system, each upstanding member being anchored to the ground by at least one tie connected to the member near its upper-most end.

Abstract: A utility line support structure having a pair of legs extending upwardly with respect to the ground in an H frame, the legs being made of structural elements having a web, a pair of side walls extending at right angles from a break line between the web and each side wall, and a pair of inturned flanges extending at right angles from a break line between each flange and its associated side wall, the flanges being parallel to the web and having edges defining a slot therebetween so that the legs have a generally C-shaped cross-section.

Abstract: Lightning arresters comprising each non-linear resistor made of a main component of zinc oxide and the other minor component are connected between a steel tower and a power transmission cable supported on the steel tower by an insulator and between the power transmission cables in different phases whereby the lightning resistance of the aerial power transmission system is improved.

Abstract: A knock down tapered pole for a power-line wherein the pole is comprised of a series of superimposed pole sections with each section including a series of U-shaped bent-corner plates of uniform cross-sectional thickness and a plurality of trapezoidal-shaped flat plates positioned between the bent-corner plates and where the corner plates and the flat plates are secured together by means of fasteners.

Abstract: A device for securing and anchoring a telephone wire comprises a narrow helix with widely spaced coils with an open bight at one end. The invention further comprises a telephone pole with an internal fixing element such as a ring with the device securing a wire looped onto it.

Abstract: A utility line Y support structure having a tubular pole adapted to be erected to extend upright from the ground, a pair of Y arms extending upwardly and outwardly from the top of the pole, connector means connecting the bottom of the Y arms to the top of the pole, and a crossarm connected between the upper portions of the Y arms, the Y arms being constructed of a structural element having a generally C-shaped cross-section, and the crossarm comprising a truss with lattice work.

Abstract: An integrated combination pedestrian sign and push button is provided for use particularly with respect to the mounting of pedestrian actuated switches for controlling traffic lights. A saddle is formed with a semi-cylindrical, longitudinally extending, concave rear face conforming to the contour of a cylindrical post to which the unit is normally mounted and a front face formed with raised letters presenting pedestrian information. The upper and lower ends of the saddle are formed wtih arcuate grooves on the front face thereof for engagement by metal banding straps employed to secure the saddle to an appropriate post. A manually operated push button switch for pedestrians is mounted to the lower front face of the saddle for connection with traffic signal control circuits.

Abstract: Pole-mounted equipment is adaptable for mounting on utility poles having a wide range of diameters and is relatively vandal-proof. A first equipment housing is secured to the pole by plural U-shaped bolts, the ends of which are tightly secured to the first assembly. Mounting brackets extend from the first assembly to a length greater than the largest pole diameter in said range and are secured to a second equipment housing. The brackets thereby define a uniform spacing between the first and second housings, irrespective of pole diameter. A front panel is secured to one of said housings and is protected by an access door. A cover, in the form of two generally L-section members, protects the housing from the elements and includes inwardly-projecting studs which extend into both housings where they are appropriately secured. Openings are provided in the top of the cover to accomodate the pole.

Abstract: A bracket for supporting electrical components that accommodate the transmission of three-phase electrical energy. The bracket includes a crossarm, generally of linear design, and formed of electrically conductive tubular material for allowing its supplemental use as a bus bar for grounding of the various electrical components mounted thereon. A series of angle members having flanges that are arranged either horizontally or vertically disposed with respect to a surface of the crossarm, form mounting surfaces upon which either terminations, cutouts, or arrestors, or any combination of such, may be mounted all upon one level with respect to a utility pole. The supports that mount the crossarm to the utility pole are preferably electrically insulative, so as to enhance the protection of a lineman working in proximity to the crossarm.

Abstract: The clamp, operable to compressively lock a wire, comprises a casing having a cone-shaped cavity therethrough, and means engaging the cavity about the wire, the means gripping the wire as a result of constriction of the cone-shaped cavity as a result of loads applied to the wire.

Abstract: This disclosure teaches a slotted flange connector useable in a method for replacing an existing utility pole (usually wood), without disturbing hardware mounted thereon. As taught in U.S. Pat. No. 3,911,548, the utility pole includes a proximal section having a bottom end attached to the earth and a distal section having hardware mounted thereon. A new pole section (preferably of prestressed concrete) is attached to the earth approximately located and adapted for receiving the distal section. The distal section (with its hardware intact thereon) is severed from the proximal section. The distal section then is connected to project from the new pole section by means of the slotted flange connector disclosed herein. Closure plates complement each other to form a cylindrical enclosure about one of the pole sections. Preferably one of the closure plates is fixed and the other is moveable. The movement preferably is provided by means of bolts.

Abstract: This disclosure teaches a turnbuckle connector useful in a method for replacing an existing utility pole (usually wood), without disturbing hardware mounted thereon. As taught in United States patent No. 3,911,548, the utility pole includes a proximal section having a bottom end attached to the earth and a distal section having hardware mounted thereon. The distal section (with its hardward intact thereon) is severed from the proximal section. A new pole section (preferably of prestressed concrete) is attached to the earth appropriately located and adapted for receiving the distal section. The distal section then is connected to project from the new pole section by means of the turnbuckle connector disclosed herein. A plurality of girdle plates, each having side marginal flanges and a terminal flange, are arranged about at least one of the sections to be connected.

Abstract: A support rack for mounting at least one electrical current transformer upon an electrical utility pole, including a bracket for each current transformer, a hollow arm connecting each bracket to a hollow junction box having a depending conduit connection to an electrical meter mounted on the same pole, so that one set of wires from the current transformers are led through the arms and the junctions box to the meter at a substantially lower secondary voltage than the secondary wires leading from the current transformers to the customer service lines.

Abstract: A self-aligning articulated crossarm assembly for supporting electrical transmission lines is provided which utilizes unique mounting structure for insuring that the assembly assumes a true perpendicular orientation with respect to the supported line even in the event that the mounting holes therefor in the pole are off-center or otherwise out of alignment. Ball and socket mounting of the horizontal support arms of the assembly in conjunction with multi-clevis coupling of the strain member thereof between the horizontal arms and pole permits use of the assembly on irregular poles or the like without the necessity of precisely boring the mounting holes for the assembly. In preferred forms, the ball sockets for the support arms have open bottoms so that upon failure of the strain member the arms can swing downwardly while remaining operatively secured to the pole with the line still supported above-grade.

Abstract: The connection system comprises a support consisting of a flanged sole-plate which is secured to a pole by means of straps and carries a longitudinal guide rib on which are slidably fitted separate and detachable retaining members in stacked relation respectively for threading and terminating electric cables.

Abstract: A new transmission line support structure including a pair of poles and a superstructure supported from below on the tops of the poles and comprising one or several crossarm units each of which includes a crossarm and may include a plurality of upwardly extending pole extensions. Each crossarm unit is secured to the tops of a pair of poles or pole extensions by means which act in directions parallel to the axes of the poles and prevent transverse motion therebetween, and which may include elastomeric pad means.

Abstract: A mounting pedestal adapted to support an electrical power box, an electric meter, a telephone box, a television jack, and a gas meter operatively in a compact arrangement for providing utility services to a mobile home. A hollow, rectangular metal post is supported in an upright position in the ground, extending thereabove, and supports an L-shaped mounting bracket on the top thereof. The bracket provides the means for supporting the power box and the meter with the telephone box, television jack and gas meter carried by the post at positions below the bracket. A ground wire is disposed within the post to connect the box, the bracket and meter to an underground grounding means.