Abstract: A metal ladder is fabricated from a pair of spaced rails in which the rails have web portions which are provided at spaced intervals with inwardly directed embossments. Each of these embossments has an opening into which one end of a tubular rung is inserted and swaged to the rail. The embossments act as ribs to carry the load toward the flanges constituting the stiffer portions of the rail thereby increasing the strength and effectively reducing the web flexure and angle changes between the rungs and the rails, due to sideward forces in ladder use. By reason of the built in stiffness web thickness may be reduced resulting in savings in materials. Additionally, intermediate these embossments, just described, the web portion of each rail is formed with one or more outwardly directed embossments.

Abstract: An improved glass panelled fireplace screen has sliding doors within a frame. The joints between the doors and the frame and between adjacent doors provide novel seals for effectively impeding the passage of air when the doors are in closed position. The screen includes thermostatically operated means which automatically opens the draft control when a fire is burning in the fireplace and which closes the draft control when the fire is out.

Abstract: A process for a latent electrostatic image or a conductivity image on a photoconductor, a single-component magnetic toner being used for development and a magnetic brush being used not only for application of the toner to the image, but also for removal of residual toner. The brush may be one and the same brush for both tasks or separate brushes identical in structure may be used for each of the two tasks.

Abstract: A mixer for mixing flowable material in a container rotates the material continuously in one direction about a first axis and simultaneously about a second axis which is non-perpendicular to the first axis, the first axis rotating about the second axis. The mixer has means for supporting the container and for rotating the container simultaneously about the two axes. Desirable top to bottom circulation of material within the container is attained by the mixer of the present invention, while the apparatus is simplified and provides economies due to its lower speed and unidirectional, continuous rotational operation.

Abstract: A combination bed and lounge assembly formed of three bed units of different heights. The bed units are adapted to be arranged so as to serve as a three tiered lounge appropriate for daytime use and to be moved apart in separated relation to serve as three separate bed units appropriate for nighttime use.

Abstract: A direct current obtained by rectifying an alternating current voltage by means of a diode bridge circuit is applied to a direct current motor connected to the diode bridge circuit. Use is made of the fact that the voltage developed across the diode bridge circuit varies, depending on the magnitude of the induced voltage across the motor. To that end, the interjunction of a capacitor series circuit coupled to the bridge circuit is connected through a voltage responsive bidirectional switching device, such as a diac, to a control electrode of a voltage controlled bidirectional switching device, such as a triac, for phase control of the alternating current voltage. One electrode of the voltage responsive bidirectional switching device is coupled to a variable resistor provided in a gang fashion with a controller, such as a foot controller pedal, so that the voltage obtainable from the variable resistor is superposed on the voltage in the switching device, such as a diac.

Abstract: A single lever faucet mixing valve comprises a unitary cartridge which may be installed in a faucet housing for original installation and removed and replaced when worn out. The cartridge is formed of a plurality of molded plastic parts which are adapted to be snapped into assembled relation to form a unitary construction.

Abstract: An accessory fender is attached to the flange delineating the wheel opening of an automotive vehicle by a plurality of retainer clips having teeth struck out from confronting surfaces. The clips are merely driven over juxtaposed surfaces of the fender and flange and engage respective surfaces in such a manner as to resist withdrawal of the clip. The clip may be manually deflected to withdraw the teeth from the fender to permit separation of the fender from the flange.

Abstract: A rocker reclining chair has a base, a rocking frame mounted on the base for rocking movement, a seat frame suspended by linkage from the rocking frame for movement between a lower position and a forwardly raised position, a backrest connected by linkage to the seat frame to pivot relative thereto between normal upright and reclined position, the backrest linkage serving to actuate the seat frame to swing the seat frame upwardly and forwardly when the backrest is moved into reclining positions, and a footrest with the linkage mounting it to the seat frame to be operable by a handle between a retracted position and an extended position. A locking mechanism is provided between the base and the rocking frame and is operative to lock the rocking frame in one of a variety of positions within the limits of the rocking travel when the footrest is not fully retracted.

Abstract: A reclining chair adapted to be positioned in close adjacency to a wall, the chair having a frame and a body supporting unit which is movable relative to the frame between an upright sitting position and a variety of reclining positions. The frame is supported on ground engaging rollers and on rocker feet, the latter being connected by linkage arrangements to the body support unit. When the occupant moves the body supporting unit to reclining position both the chair frame and body supporting unit are caused to be moved away from the wall so that no part of the chair is in physical contact with the wall. Substantially 40% of the movement away from or toward the wall is effected by the body supporting unit and substantially 60% of the movement is effected by the frame. Upon movement to upright position the chair frame and body supporting unit return to the original position in close adjacency to the wall.

Abstract: Sharp, high-resolution copies of electrostatc images developed with a one-component magnetic toner can be obtained by corona transfer to a copy sheet if toner resistivity is at least 10.sup.13 ohm-cms. Such resistivity is attainable by incorporating carbon within the toner particles in an amount preferably about 1 to 1.3 per cent by weight, the surface of the toner particles either not having any carbon thereon or it being present in amounts of at most 0.7 per cent by weight.

Abstract: A metal ladder is fabricated from a pair of spaced rails in which the rails have web portions which are provided at spaced intervals with inwardly directed embossments. Each of these embossments has an opening into which one end of a tubular rung is inserted and swaged to the rail. The embossments act as ribs to carry the load toward the flanges constituting the stiffer portions of the rail thereby increasing the strength and effectively reducing the web flexure and angle changes between the rungs and the rails, due to sideward forces in ladder use. By reason of the built in stiffness web thickness may be reduced resulting in savings in materials. Additionally, intermediate these embossments, just described, the web portion of each rail is formed with one or more outwardly directed embossments.

Abstract: A conventional single element IBM correcting SELECTRIC typewriter having an error correction system is modified by adding to the element a universal obliterating type font and providing an error correcting key function which is independent of the other keys.In the SELECTRIC typewriter the error correcting key is operatively connected with the backspace key so that activation of the error correcting key simultaneously activates the backspace key.

Abstract: A faucet assembly having a rotatable, non-rise stem and which stem can be axially removed from its shank, the assembly having a removable retainer clip which slides into a transverse slot in the shank and forces the stem into proper seating engagement with the stem and locks the stem in place. A faucet handle has a skirt which is slipped over the retainer clip and prevents its removal from the shank. Two such faucet assemblies are mounted on a central shank by a telescoping connection, and interengaging means are provided between the telescoping parts to permit their easy assembly, but once they are assembled they are locked together and prevented from being pulled apart. .Iadd.