Abstract: This optical fiber cable has the optical fibers adhered to a support. An assembly including the fibers and the support is carried by a core element having a helical channel in which the fiber assembly is located and free to adjust itself to accommodate bending of the cable without subjecting the optical fibers to pressure or to bends that are excessively sharp. The construction also avoids pressure on the optical fibers from binders, core tapes, or the cable sheath when the cable is bent. It also avoids micro-bending losses. Locating of the optical fibers closer to the cable axis further decreases bending losses.

Abstract: This necktie rack has one or more arms with hangers for individual ties extending from opposite sides of each arm. Each of the arms swings forward and upward about a pivot to bring the hangers into position for convenient removal and replacement of ties; and each arm extends forward toward its lower end, when at rest, to leave space under each hanger for the necktie of that hanger to extend downward without interference with or from other ties. Features of the mechanical construction make the rack economical to manufacture and attractive in appearance.

Abstract: This improved stop joint is used at connections of one length of electric cable to another, for the purpose of preventing fluid in one length of cable from contacting fluid in the next length of cable. The joint includes a stop tube that surrounds the end portion of one length of cable and that is made with a mid-portion of resin base material, preferably reinforced, and end portions of metal connected to the resin base material by fluid-tight connections. These metal end portions are secured to the pipe or shield that surrounds one or both of the lengths of cable. Parts are constructed so as to minimize the time and cost of making the connections between the cable lengths and the connecting of the stop joint with the pipe or shield that surrounds the respective cables.

Abstract: This invention is an improved filling compound for preventing moisture penetration along the interior of high voltage electric power cables. Amorphous polypropylene, mixed with carbon where it must be semiconductive, is an extremely good filling compound because of its electrical characteristics and also because of its good flow characteristics when extruding. When the cable is to be used under conditions where it must withstand temperatures so low that the polypropylene becomes brittle, it can be blended with polyisobutylene rubber to withstand lower temperatures, but the blend must be kept within limits to prevent loss of the good flow characteristics of the amorphous polypropylene.

Abstract: In sheet-rolling mills where the rolls are normally under maximum rolling pressure, the mill is said to be "pre-stressed." Load transfer blocks exert a force to relieve a part of the pre-stress for each particular strip rolling operation. This invention has a combination of hydraulic pressure and gas pressure for providing a controlled substantially unyielding force during a rolling operation, and a yielding shock absorber for preventing full pre-stress load from coming on the rolls when an end of the strip passes the rolls or when a strip breaks.

Abstract: This invention is an improved method for dispersing antioxidant material in cross-linkable insulation for electric cables. The antioxidant, which has a high melting point, is dissolved in a carrier, preferably the cross-linking agent, to obtain a solution of low melting point that is dispersed through the pellets of insulation when the ingredients are mixed in a blender. Improvements in the blender cycle reduce the content of fines, improve dispersion of the antioxidant and shorten the blending cycle. The preferred ingredients used are 4,4'-thiobis (6 tert-butyl-m-cresol) as the antioxidant and dicumyl peroxide as the cross-linking agent.

Abstract: This easel for photographic enlarging has retainers for holding paper in position on the easel, and improved means for adjusting the retainers for paper sheets of different size. There are clamps for holding the retainers in set positions and provision for preventing parts of the clamps from becoming disconnected when turned in directions to release them. A single clamping screw for each retainer expedites adjustment. Masks for paper of different size have the same spacing of screw-receiving openings corresponding to a single standardized spacing of threaded openings in the easel plate.

Abstract: Filling compounds for high voltage, electric power transmission cables have been deficient in one characteristic or another, such as incompletely filling voids during manufacture, forming voids when cables are in service, lack of permanent adhesion to cable components to prevent passage of water lengthwise of the cable, and low drip point when cables are at elevated temperatures. This invention is a cable filled with a compound of isobutylene rubber that obtains all of the desirable filler characteristics for a high voltage power transmission cable.

Abstract: This improved photocopying system projects light from the finder of a camera and through the camera lens to illuminate, on a copy support, the exact area that the camera will photograph. The material to be copied is composed accurately in the illuminated field, the copy lights are turned on, and the camera is operated to make a photocopy. Optical fibers are used to supply light to the finder without overheating the camera.

Abstract: This invention is a single die by which thermoplastic insulating compounds can be co-extruded without any die for the first layer. It makes possible the extrusion of a high-density solid polyethylene skin layer over a cellular polyethylene primary insulation. Such a combination is difficult or impossible to make with a conventional co-extrusion die having a wire guide tip, one combination tip/die and a secondary extrusion die.

Abstract: This easel holds photographic paper in position for exposure during an enlarging operation. The paper is placed on a plate and pushed up against a shoulder at one end of the plate; after which a masking frame is swung down into contact with the paper to hold it flat. Retaining elements extending from the shoulder hold the paper flat on the plate and prevent it from curving upward along the shoulder where the paper could be bent and creased when the masking frame swings down into contact with the paper.

Abstract: This internally shielded telephone cable provides more efficient shielding for meeting near-end crosstalk requirements in carrier systems having expanded channel capacity and increase in equivalent frequency from 772 kHz to 1.576 MHz or higher. The improved shielding uses tapes bent into configurations that obtain greater shielding area from a single tape, and constructions that are less expensive than prior art and produce a mechanically stronger and more unitary cable structure.

Abstract: This invention makes extruded, vulcanized, high voltage cables insulated with thermosetting compounds at much higher rates of production and with superior insulation of reduced thickness and with reduced cavities or voids in the insulation. As the cable comes from an extruder, it passes into a curing chamber with a heat booster that quickly raises the insulation to a temperature at which it is cured much more quickly than with steam heating of the prior art. A high temperature liquid in contact with the insulation maintains the high temperature; and because of the greater curing heat, the cable can travel through the curing chamber at a faster rate and into a cooling tube where it contacts with a cooling liquid under high pressure. The insulation compound is treated to reduce the size of cavities; and the high pressure maintained by the curing and cooling mediums prevent expansion of cavities before the insulation is set.

Abstract: This specification discloses simplified wire payout apparatus for paying out wire directly from a box in which the wire is shipped, thus eliminating the necessity of providing mechanical payout equipment such as has been required on utility service trucks. For light-weight and low cost, a corrugated paperboard carton is used as a shipping container; and provision is made for paying out the wire without removing a spool, on which the wire is wound, from the box. The spool is preferably also made of corrugated paperboard.

Abstract: This invention is a wire and transport system for a communication cable manufacturing facility. Bobbins wound with insulated wire roll down a bobbin track from a location where the wires are drawn and covered with a layer of insulation. A number of full bobbins accumulate on the track, and they are transferred to an elevator that delivers them to a multi-layer inventory storage rack. Final alignment of the elevator with the tracks and compartments of the inventory storage rack is under the control of electronic apparatus; but the positioning of the elevator in the vicinity of the selected track or storage compartment is controlled by an operator who rides on a carriage on which the elevator shaft is mounted.

Abstract: This invention is a system for attaching pillows to an X-ray table or the like. A belt is connected with the pillow by construction that permits pillow-slips to be replaced for each patient without disturbing the permanent connection of the belt to the underside of the pillow. The belt extends to opposite sides of the X-ray table, where it can be looped around belt holders so as to bring end portions of the belt into position overlying the parts of the belt between the pillow and the belt holders. Detachable fastening means on the confronting surfaces of the overlying portions of the belt can be pressed together to hold the end portions of the belt in their looped positions about the belt holders and to maintain the pillow in a center position on the table.

Abstract: In high voltage power cables with metal shields that have lap seams with the seam edges movable with respect to one another, a bridging tape is frequently used over the seam and a plastic cable jacket covers the metal shield and the bridging tape. This invention provides a novel bridging element that covers the lap seam and that is made of soft and resilient material with edge portions thinner than the center of the bridging element to provide a streamline contour.

Abstract: This invention receives paired bobbins from a pairing machine, stores the various bobbins of a given color coding in separate compartments of a rack, and selectively discharges bobbins to an elevator in accordance with the demand from a cabling machine. The elevator extends for the length of the rack and receives the desired bobbins with the color coded pairs called for by remote control from the cabling machine. The compartments of the storage racks slope in a direction that cause bobbins to roll from the rack by gravity on to the elevator; and the elevator slopes to discharge bobbins by gravity to a floor conveyor that carries them to the cabling machine.

Abstract: This invention bonds the paper pages of books without applying adhesive to the paper. Clamping jaws press the paper sheets of a book together along the edges that are to be bound. The paper is a weldable paper and the sheets bond to one another where they are clamped in contact and raised to a welding temperature by heat of one or both of the clamping jaws, radio frequency energy or otherwise. The temperature must be at least as high as the welding temperature of the paper and not so high that it will scorch or otherwise damage the paper. The clamping and welding apparatus are combined with other book-making machinery and located along the course followed by the unfinished book at a station where the welding step can be done automatically and with substantial saving in the usual labor required.

Abstract: This invention makes possible the use of a very small pressure relief valve for protecting pressure gauges, thermometers, humidity indicators and other detectors from excessive pressure in an element in which the fluid is contained and of which the indicators must measure a characteristic. The pressure relief valve is located in an exhaust branch outlet from passages that connect the detector with the element in which the fluid is contained; and the relief valve has a housing with an inlet port of a cross-section much less than the cross-section of the passage from the element containing the fluid. This inlet port throttles the flow of fluid into the relief valve. By thus reducing the cross section of the inlet port, the relief valve can be as small and inexpensive as desired, commensurate with the flow required by the detector where the detector is of a nature requiring a flow of the fluid.