Abstract: An apparatus and method for upholstering a rigid chair shell is disclosed. A continuous, generally C-shaped track is utilized about the peripheral edge of the shell, opening rearwardly thereof to receive a retaining element attached about the peripheral edge of the covering material. The retaining element is constructed from a strip of tubular flexible material with an integral flap member circumferentially overlying at least part of the tubular strip and accepting the track edge therebetween. The inside surface of the outer end of the flap member is attached to the inside surface of the edge of the cover or fabric and, after suitable cushioning is attached to the front surface of the shell, the covering is placed over the cushioning and rolled about the retaining element which is snapped into the C-shaped track around the periphery of the shell to hold the covering thereon.

Abstract: A rechargeable lamp assembly utilizing recharging contacts and a mounting unit for recharging purposes that contains mating contacts so that the lamp unit may be recharged when mounted on the mounting unit. The mounting unit includes another set of electrical contacts of the same configuration as those on the lamp unit. Thus a recharging unit for generating a recharging current may be utilized which is connectable either to the mounting unit, to recharge the lamp unit mounted thereon, or directly to the lamp unit. The lamp unit circuitry is adapted to accept any of a number of different recharging units, so as to provide for recharging from a battery source, an AC source, and an AC source with input power-failure indication. The bulb in the lamp unit may be releasably connected to the battery, so that the battery potential may be taken off as an independent power supply for another load, if desired.

Abstract: An assembly for loading and dispensing varying amounts of fluid from multiple syringes is disclosed. A body member having spaced-apart surfaces A.sub.o and B.sub.o coacts with a handle member having spaced-apart surfaces A.sub.1 and B.sub.1 (A.sub.1 and B.sub.1 are either fixedly spaced or variably spaced) parallel to the surfaces A.sub.o and B.sub.o. The handle member is mounted for relative reciprocal movement with respect to the body member in a direction D.sub.o the same as a vector perpendicular to the surfaces A.sub.o and B.sub.o. A plurality of syringe actuators each associated with an individual one of the syringes is included, and they are mounted for relative movement with respect to the body member. Each syringe actuator has actuating surfaces for respective contact with the surfaces A.sub.o and B.sub.o on the body member and A.sub.1 and B.sub.1 on the handle member.

Abstract: There is described a new and improved method and apparatus for boring subterranian holes between horizontally spaced locations, comprising a broaching head having a first trailing and a second leading end for cutting a bore hole through the ground, a rod string releasably connectible to the first end thereof for pushing the broaching head through the ground; a guiding head cooperating with the broaching head for guiding the movement of the broaching head between the horizontally spaced locations, and extruders to extrude the incised core of the bore. The broaching head is pushed between the locations to cut a core, which passes through the head, by forming first and second coaxial incisions, whereby subsequent removal of the core is facilitated.

Abstract: A desk assembly is disclosed utilizing a framework for supporting side and back panels and file drawer slide assemblies. Adjacent frameworks may be clipped together to form a credenza; they may be spaced apart and joined together by a desk top slab; an extension may be added to form an L-shaped desk unit. An accessory-holding track assembly is included formed from an extruded track with exposed and internal channels. Accessories are positioned in the exposed channel; support members are positioned in the non-exposed channels. Identical slide drawers are utilized, with boxes therein of differing heights. Drawer fronts of differing heights corresponding to the different heights of the boxes are utilized. The entire framework is filled with file drawer boxes of differing heights, and the module is fronted by corresponding drawer fronts of differing heights. A file drawer compressor or follower is used, resiliently biased against the sides of a file drawer.

Abstract: An assembly for holding and tensioning a webbing particularly useful in an article of furniture in which the webbing is adapted to be stressed by a person seated thereon. Male and female members are employed, the female member being fastened to a framework, and the male member being fastened to the webbing. The male member is positioned between side walls of the female member, and first and second abutment surfaces of each member engage each other in the assembly and are urged into engagement by the stress upon the webbing. The male member is levered into engagement with the female member.

Abstract: A cooling tower, a process for producing a cooling tower, and a reinforcing element suitable for use in the process and tower are disclosed. The cooling tower, formed from a shell of reinforced concrete, is produced with a plurality of plate-like reinforcing elements adjacent to a surface of the shell. The reinforcing elements are disposed in at least one horizontal plane within the shell adjacent to and suspended from the shell surface. The reinforcing elements in a plane abut and are joined one to another, and are also joined to the shell at spaced points thereon. Each plate-like element includes a central channel communicating with trough-like ends for receiving a suitable reinforcing material which extends into recesses in the shell of the cooling tower adjacent the trough-like ends.

Abstract: An assembly for stretching and securing upholstery fabric or the like in place utilizes a pair of bars contained by pockets along opposite edges of the fabric. The bars are articulatedly secured at corresponding ends thereof to a framework, and are forced apart at their opposite ends by a bendable rod which engages the free bar ends and urges them apart when the rod is straightened. The bendable rod and engaged bar ends, along with an additional upholstery bar, together sandwich fabric therebetween and secure the fabric in place. The sandwich assembly is concealed by a flap of upholstery material.

Abstract: A crossmixing method for ensuring adequate mixing of a developer in an electrostatic printing machine. The method utilizes a screw conveyor having a left-hand thread on one portion thereof and a right-hand thread on another portion thereof, to move developer material from the end of the screw conveyor toward the middle thereof. Material is discharged from the screw conveyor into the sump of the machine in a direction generally toward the opposite end of the screw conveyor from where it originated. Developer material is moved from the sump upwardly onto a plate assembly which includes angled separators for guiding the developer particles and shifting them in opposite lengthwise senses on opposite halves of the plate assembly. From the plate assembly, the developer material moves in a curtain downwardly into the sump.

Abstract: An AC power supply system having transformer and filter structures. The electrical center of the filter section, which is normally connected to system ground, floats with respect to system ground and is connected to a center tap on the secondary winding of the transformer structure.

Abstract: The present invention provides an improved method for manufacturing a developer carrier for use in a device for developing an electrostatic latent image, for example, formed on a photosensitive member. The present method allows to make a developer carrier which is durable and which can carry out ideal developing performance. In accordance with the present method, after forming a first adhesive layer on a support, conductive particles are deposited, followed by the step of forming a second adhesive layer to have the particles embedded therein. Then, the resulting structure is ground to have at least some of the particles exposed at the ground surface.

Abstract: Described is a table easily assembled from a number of uniform components including rail and leg members secured together at the corners of the table by a clamping assembly. The clamping assembly can be used for this as well as other uses and includes an inner bracket having three mutually perpendicular arms underlying ends of respective rail and leg members, and an outer bracket fitting thereover.

Abstract: A liquid nebulizer comprising a nebulizing container for a liquid, an outlet duct, and a transducer at the bottom of the container. A partition surrounding the liquid projection produced by the transducer is included, having its upper edge above the liquid surface, so that large spray particles or drops from the outlet duct fall outside the partition.

Abstract: A noise filter with a socket attached thereto including a case made of metallic material mounting a pair of pierce type (feed through) capacitors and a power input socket having a pair of power input contacts and a grounding contact, a choke coil having a pair of coil windings wound thereabout and a capacitor interposed between said pair of coil windings mounted inside said case, said pierce type capacitors including inner piercing (feed through) terminals and outer terminals, said power input contacts and the piercing terminals of said pierce type capacitors being connected to one another via said coil windings, and said grounding contact and the outer terminals of said pierce type capacitors being electrically connected to the case.

Abstract: A magnetic brush type developing device using a one-component system developing agent suitable for use with electrophotographic copying apparatus including a scraper having a magnetic wire disposed in close proximity to a developing sleeve serving as means for agitating and mixing a developing agent used for developing and a fresh supply of the developing agent fed to supplement the developing agent consumed by developing. The scraper includes a nonmagnetic plate provided with a plurality of stays in the form of a comb disposed on a side thereof facing the developing sleeve, and a magnetic wire mounted on the forward end of the stays and arranged in a magnetic field generated by a magnet disposed in the developing sleeve. The magnetic wire and the developing sleeve are spaced apart from each other by a predetermined gap.