Abstract: The invention relates to a head attachment for a hydraulic synthetic-resin processing machine for colored synthetic resin, the attachment comprising a mixer, a synthetic resin supply vessel directly connected with the former and a coloring mass supply vessel connected herewith through a dosing device, which device is provided with a hydraulic motor for driving the dosing device.

Abstract: A spring steel clip for suspended ceiling grids may be used both as an edge molding attachment starter clip and also as a clip for holding intersecting tee bars together with the intersection being horizontally adjustable with simple finger pressure. The one piece clip includes a orizontal portion and a right angle vertical portion. The horizontal portion includes an offset portion with slots in the lower edge of such offset portion to accommodate the bulb of the stem of a tee. When the offset portion is compressed with finger pressure the angle of the slots with respect to the tee change permitting the tee bulb to be inserted or removed or horizotally adjusted. When released the edges of such slots lock against and capture the bulb of the tee. The vertical portion includes a downwardly extending planar tab adapted to fit behind the edge molding and at least one offset tab which includes barbs extending toward the planar tab to capture and retain the hemmed upper edge of the molding.

Abstract: A process is described for improving the purity of quaternary ammonium hydroxides. In one embodiment, the process of the present invention comprises the steps of(a) charging an aqueous solution containing the quaternary ammonium hydroxide to the anolyte compartment of an electrolysis cell which comprises an anolyte compartment and a catholyte compartment containing water separated from each other by a cation-exchange membrane,(b) passing a direct current through the electrolysis cell to produce a high purity quaternary ammonium hydroxide in the catholyte compartment, and(c) recovering the high purity quaternary ammonium hydroxide from the catholyte compartment.In a preferred embodiment, the aqueous solution containing the quaternary ammonium hydroxide charged to the anolyte compartment is heated to an elevated temperature for a given period of time prior to subjecting the quaternary ammonium hydroxide to the electrolytic process of the present invention.

Abstract: A fluid actuator characterized by a feedback mechanism for indicating actuator position. The feedback mechanism is driven by the actuator screw shaft, whereby the movements of the feedback mechanism are proportional to the rate and position of the actuator movements. The feedback mechanism and actuator movements may be synchronized so that the extreme end positions of the feedback mechanism will correspond to the fully retracted and extended positions of the actuator. A stroke limiting mechanism may also be provided for preventing the actuator from overstroking the feedback mechanism in the event that they are not properly synchronized.

Abstract: A paving block has six sides, and a top (10) and a bottom surface (12). Two of the side surfaces (14, 16) are substantially parallel and substantially twice as long as each of the other four side surfaces (18, 20, 22, 24), two surfaces (18, 20) of the said other four side surfaces each making an angle of substantially 120.degree. with one end of each of the longer side surfaces (14, 16) and each other side surface (22, 24) making an angle of substantially 60.degree. with the other end of each of the longer side surfaces (14, 16). In other words, a block according to the invention as seen in plan is of `chevron` shape a shape that could also be termed a squat `V` shape. This is a simple, easily manufactured block, which permits numerous different arrangements to be laid.

Abstract: The electrical measuring meter comprises a polarized motor magnet mounted for movement to and from a starting position, a polarized holding magnet operative magnetically to influence the motor magnet constantly towards such starting position, and a calibrating element magnetized by the holding magnet to effect a partial cancellation of the holding magnet's influence on the motor magnet as is needed for calibration. The calibrating element preferably is in the form of a soft iron circular disc, and soft iron discs of different sizes are used to calibrate the meter for respective different maximum scale current values. Also, the high magnetic permeability of the soft iron disc enables the use of a rugged and economical sleeve bearing mount for the motor magnet even in a meter calibrated for low current measurement.

Abstract: A fan casing for mounting a plurality of motor/fan units for cooling electronic apparatus mounted in racks or cabinets, the casing comprising two identical planar members to be assembled so that the motor/fan units are sandwiched between the planar members with finger guard members covering openings in the planar members. Inwardly directed projections formed by a pierce and plunge operation are provided on the planar members to engage in apertures in the motor/fan units to locate the motor/fan units and indentations are formed in the planar members to receive and locate the finger guard members so that when the two parts of the casing are assembled the finger guard members are disposed between the motor/fan units and the planar members. Attachment means are provided engaging in recesses to couple the two planar members one to the other, each planar member has parts of side walls and end walls integral therewith and the overall height 2D of the casing is 45 mm.

Abstract: A liquid crystal apparatus includes a plurality of volumes of liquid crystal material in a containment medium. At least some of the volumes are interconnected. The walls defining the volumes tend to distort the natural liquid crystal structure in the absence of an electric field, and the optical and electrical properties of the materials are such that in the absence of a field incident light is scattered or absorbed and in the presence of a field, scattering and/or absorption are reduced. The apparatus may be used in an optical display, optical shutter, billboard, etc., and it functions independently of polarization. Methods of making and using the apparatus also are included in the invention.

Abstract: A sealing system for sealing the junction between a horizontal surface such as the top surface of a bathtub, counter top or sink and two adjacent walls is disclosed. The sealing system seals the junction of the walls and a horizontal surface which are substantially mutually perpendicular and define two longitudinal joints, one vertical joint and a corner at the intersection of the joints. The system comprises two generally L-shaped sealing strips each with a pair of legs extending lengthwise parallel to one of the joints and each stopping a predetermined distance short of the corner. A corner piece has faces adjacent the horizontal surface and each of the walls, the faces being shorter than the predetermined distance. Two generally L-shaped flanges extend lengthwise beyond the ends of the faces, each of the flanges overlapping with the one of the L-shaped sealing strips. The overlap accommodates some variation from ideal in the length of the sealing strips.

Abstract: The disclosure relates to a base support for an antenna mounting post and a method of installing the same in the ground. In one preferred embodiment the base support comprises two clamping members which may be positioned and secured about the outside diameter of a post after the post has been inserted into the ground to the appropriate depth. Each of the clamping members includes a pair of angularly adjustable guides each adapted to receive and support a rod that is driven into the ground to provide stabilizing support for the post. The angularly adjustable guides allow the rods to be driven into the ground at a variety of angles and, in the event an obstruction such as a rock is encountered while driving the rod, the rod may be withdrawn, the angle of the guide altered, and the rod reinserted into the guide and driven into the ground once again.

Abstract: Valve device includes a valve chamber containing three spherical members in stacked relation which produce a limited pulsating air flow that is metered in precise amounts at any given time into the fuel/air path of a gasoline powered internal combustion engine. The valve chamber has a main entry orifice and one or more supplemental entry orifices, the size and number of which may be varied to obtain the desired range or spread of frequencies for a particular engine over its entire operating range.

Abstract: An improved zone control apparatus having mode selectors which allow a user to select any one of a variety of operating modes for individual fluidically actuated flow control devices. The invention further provides for a smoke damper which upon automatic or manual activation causes all of the flow control devices to restrict flow of conditioned fluid through respective ducts or pipes so as to help minimize smoke contamination and the formation of a "chimney" effect. The invention further provides for the utilization of vibration type diaphragm pumps to create a source of pressure and vacuum, a pressure test device to quickly check the pressure in the apparatus, and a flow indicator for determining the location of leaks in the apparatus.

Abstract: A composite pressure vessel including a fluid port extending through the composite sidewall structure formed by providing a radial hole through the sidewall structure for receipt of an externally removable porting plug. The porting plug is retained within the radial hole by threaded engagement in an internally threaded grommet which may either be incorporated into the composite windings of the sidewall structure or held in place against the exterior surface of the sidewall structure by local composite windings. At the inner end of the porting plug is a seal groove containing a ring seal which is sized to form a fluid-tight seal around a porting hole in a liner member in the interior of the sidewall structure to prevent fluid leakage between the porting plug and liner member.

Abstract: A heater cabinet which utilizes a source of steam heat to elevate to a predetermined working temperature various industrial containers and the contents thereof. Containers suitable for use with the heater cabinet include barrels, drums, pails, nondisposable and disposable liquibins, and the like. In a preferred embodiment the cabinet includes a plurality of insulated walls which define an enclosure. Access to the enclosure is provided by a pair of swinging doors hinged to the front wall of the cabinet. Mounted near the bottom of the enclosure is an open grate for supporting containers placed within the enclosure for heating. Beneath the grate and contiguous therewith is a steam coil for connection to a source of steam which imparts heat into the enclosure. Below the steam coil is a drip pan for collecting and containing any spillage or drippage which may inadvertently flow from the container.

Abstract: A container structure for a dangerous material. An inner container defines a chamber for receiving the dangerous material, an outer container surrounds the inner container, and a fluid chamber is disposed between the inner and outer containers. A body of non flammable liquid is disposed in and completely fills the fluid chamber, and the body of liquid is substantially confined in the fluid chamber. A vent space is disposed between the inner and outer containers in the area above the fluid chamber. The outer container has a bottom wall that is adapted to slidably engage a support surface so that the container structure can slide on the support surface in response to an external impact overcoming its inertia.

Abstract: Dual tandem composite cylinder assembly includes a cylinder having circumferential or hoop stress windings surrounding a pair of hydraulic chambers in series to react the circumferential loads and prevent diametrical expansion of the hydraulic chambers. Longitudinal tension windings extend over substantially the entire length of the cylinder outwardly of the circumferential windings to react the axial loads which the cylinder must contain. Compressive cylinder composite windings are also provided for carrying compressive loads generated within the cylinder. The hydraulic chambers are desirably lined with removable liner members to facilitate changing of seals and refurbishment of the cylinder.

Abstract: A tire curing press incorporates an improved seal assembly for the center mechanism or bladder assembly. The bottom or lower clamp ring assembly for the shaping bladder is normally threaded on a hub. The hub and ring assembly include cylindrical telescoping surfaces and axially facing surfaces with an O-ring or seal ring provided between the former and a harder bumper ring provided between the latter. The present invention eliminates the seal between the cylindrical surfaces and provides between the axially facing surfaces a special seal assembly which includes an annular sealing plate with a low coefficient of friction and two sealing O-rings on each side thereof. The seal assembly prevents "blow-by" and makes the parts easier to assemble and disassemble under various temperature conditions.

Abstract: An ejector device consists of a number of ejector units each of which includes a suction chamber. The individual units are positioned in a common housing. For making the ejector the housing is produced and the suction chambers are produced therein. These latter are four sided recesses. The holes are made in the partitions between the chambers and in the walls of the housing and nozzles are fixed in these holes. In a further step a flexible cover is placed on the open sides of the chambers. There are openings in that cover. It is covered by a rigid plate with an opening and a second flexible cover is placed on the plate. Finally a second housing is secured to the assembly. Inlet and outlet ports are provided in the second housing.