Abstract: A window blind, preferably used with van windows, is disclosed. The window blind comprises a plurality of slats, and first and second framework members. The first and second framework members are virtually identical and only the first will now be described. The first framework member includes a first and a second sidepiece, and a plurality of struts. Each one of the struts is pivotally connected at one end portion thereof to the first sidepiece, and is pivotally connected at an opposite end portion thereof to the second sidepiece. Each strut is longitudinally spaced from an adjacent strut. Each one of the struts includes means such as indented portions thereof for securing an edge portion of one of the slats thereto. The first sidepiece preferably includes opposite end portions engageable with the window for fixing the first sidepiece of the framework member to the window.

Abstract: There is disclosed an infinite circuit using rolling bearings for providing the rectilinear motion. This circuit comprises: rolling elements consisting of rollers or balls; rolling bearings, constituted by the rolling elements, for providing the infinite rectilinear motion by endlessly circulating the rolling elements in an infinite circuit while keeping the direct contact relation with each other; rectilinear track and return passages; two direction reversing passages which connect both ends thereof. The direction reversing passage consists of two quarter-circular passages and an intermediate rectilinear passage provided therebetween. The cross section of each rolling element has the same diameter. In this invention, the traveling amount of each rolling element at each position in the infinite circuit can be made uniform, thereby minimizing the stick slip of the rolling elements while they are rolling in the circuit, so that it is possible to obtain the infinite circuit with less sliding resistance.

Abstract: An upholstery fixing device consists of a bracket having a holdfast suspended therefrom with bendable or flexible straps. In use the bracket is riveted to the back of a trim board, and the holdfast is pushed into an associated aperture of an inside panel of a car door. Then, the bendable straps can be yieldingly bent to automatically reduce any misalignment between a fixed bracket (and hence its holdfast) and an associated aperture of the inside panel of the car door, thus facilitating the fixing of the upholstery to the inside panel of the car door in exact registration.

Abstract: Material handling apparatus comprises a mobile frame defining a longitudinal axis and a raised load compartment on the mobile frame substantially in alignment with said longitudinal axis, and having open front and rear ends. A material handling bucket is pivotally mounted to a carriage mounted for longitudinal movement in an axial direction. A drive is provided driving the carriage bidirectionally in the axial direction. A cam surface is defined substantially continuous with the open front end of the raised load receiving compartment and continuing to a location vertically therebelow. The bucket is arranged for simultaneously pivoting and riding along the cam surface and the load compartment in response to the movement of the carriage for alternatively loading material through the open front end of the load receiving compartment and clearing the load receiving compartment of material loaded thereupon through the open rear end thereof.

Abstract: A line protector for a communications circuit provides overvoltage and overcurrent protection. The overvoltage protection is attained through an arrester that provides an arc gap from the line to ground. For overcurrent protection, a fusible element is melted by a heat coil causing the line to be directly grounded. A test terminal is in conductive connection with the line circuit and extends to a region in the housing wall wherein there is an aperture for receiving a test probe. The test terminal is in firm resilient engagement with a conductive component of the line circuit and the wall adjacent to the apertures whereby the test terminal is maintained in its desired position within the housing to avoid short circuits therein.

Abstract: A signal distribution apparatus for selectively coupling each of a plurality of inputs to one or both of two outputs substantially without interference between the inputs or the outputs. The signal distributing apparatus comprises a plurality of input terminals and balanced couplers, such as balun coils, for providing a balanced line from each input terminal. A switching network is coupled intermediate the balanced couplers and the two outputs for selectively and individually coupling each balanced line to one or both of the outputs.

Abstract: The mechanism disclosed comprises a semi-automatic insertion machine for facilitating the insertion of contents into envelopes of the type utilizing exposed self-sealing adhesive.The envelopes, with the seal flaps in open position and the adhesive exposed, are arranged in superposed relation within a supply hopper. Means is provided for removing the envelopes one by one from the supply hopper and transmitting them to the inserting station. The removal means for removing the envelopes from the supply hopper includes mechanisms for insuring that the envelopes shall not stick together due to the self-sealing adhesive, and for insuring that the envelopes shall be translated in one by one relationship to the inserting station.At the inserting station the sidewalls of the envelope are drawn apart by suction gripping means, while the seal flap remains open and extended beneath a guide plate to facilitate the insertion of materials into the envelope by an operator.

Abstract: The derailler comprises a support 4 for a chain guiding device 12, 13 which is connected to the support by a deformable articulation structure which, under the action of a pulling cable, positions the chain guiding device relative to the free-wheel sprockets. The deformable articulation structure comprises a deformable quadrilateral structure 6, 7 to 11, at least two sides of which quadrilateral structure are unequal.

Abstract: A pet case comprising a bottom box body and a garbage receptacle being loaded in the former is disclosed, wherein the bottom box body has a circumferential wall plate consisting of a front plate, a rear plate, and both side plates, and is provided with a consecutively formed mounting shelf for a sheet of wire net on each of the inner wall faces of the rear plate and both the side plates, and further with the protruding pieces for mounting a garbage receptacle under the mounting shelf for the sheet of wire net, whereby there is no necessity to prepare a bottom plate, and consequently the bottom box body can be molded integrally by using plastics and at a low price.

Abstract: A knock-down furniture assembly comprises substantially identical top frame and bottom frame members. Fasteners are coupled to the top and bottom frame members a side wall member rotatably receives an elongate mating fastener extending substantially from top to bottom thereof. The elongate mating fastener is configured for mating with the respective fasteners of both top and bottom frame members for defining an assembled condition of the furniture assembly. A knock-down drawer assembly comprises an end panel and two complimentary side panels and hinges for hingedly joining the complimentary side panels with the end panel. A preformed drawer guide assembly is also provided for mounting one or more assembled drawer to the assembled frames and sides of the furniture assembly.

Abstract: Inhalation therapy apparatus comprises a mouthpiece through which air is to be inhaled and provides a pneumatic signal related to the volume of air inhaled. The pneumatic signal is transduced to electrical information and provides visual indicia to be observed by the patient to encourage the patient's performance. One row of lights indicates a desired level of inhalation to be attained, while a parallel row of lights indicates the inhalation actually attained. A step wise visual configuration also is provided encouraging the patient to increase his inhalation step by step. A visual display is also provided of the total number of attempts or inhalations, and also the number of times that the desired volume is attained.

Abstract: Disclosed is a conveyor system for delivering feed to poultry cages which are organized in an oppositely facing, multi-level array. The system comprises a first endless conduit extending along an upper conduit run past an upper level of cages facing in a first direction, and extending along a lower conduit run past a lower level of cages facing in a second or opposite direction. A second endless conduit extends along an upper conduit run past an upper level of cages facing in that opposite direction, and extends along a lower conduit run past the lower level of cages facing in the first direction. Displaceable driver elements disposed in these endless conduits carry feed in trough runs past the adjacent cages. An overhead delivery conveyor delivers feed to these first and second conduits. First and second drop tubes permit the level of feed in the conduits to be adjusted. This adjustment discourages the poultry from playing with or raking the feed.

Abstract: A test apparatus is provided for measuring the proportion of at least one constituent in a sample of material, which constituent bears a known relationship to the electrical conductivity of the sample. The test apparatus comprises a sensor including both a receptacle for receiving a sample of material and a field producing coil for producing an electromagnetic field within the receptacle. The coil is also designed confining said electromagnetic field to a predetermined, fixed volume within the receptacle and for producing a substantially constant magnitude electromagnetic field throughout this predetermined, fixed volume. A monitoring circuit is coupled with the sensor and is responsive thereto for producing an output signal which bears a predetermined relationship with the real impedance of the sensor and therefore with the conductivity of the sample.

Abstract: The derailleur is shown in a retracted position allowing the dismantling of the rear wheel of the cycle. In this retracted position, it is maintained by an abutment which is rigid with the fixed part of the derailleur and is resiliently retained in a cavity defined by the concavity of a resiliently yieldable strip carried by a member fixed to the frame lug. In the operative position, the abutment is applied against the support surface of the lug.

Abstract: A contact lens disinfector has a pair of wells that are axially aligned and open in opposite directions from the disinfector casing. Between the wells is a positive temperature coefficient thermistor which serves as a heater to supply heat through a pair of heat sinks on opposite sides of the heater. Each heat sink has a spherically curved surface which engages flush with a companion shaped wall of the lens well to enhance the transfer of heat from the heater to the solution within the lens well.

Abstract: There is disclosed a wire clamp assembly for a terminal member of the type including a fastener member and a clamping member. The clamping member including a plate-like washer having a central aperture for receiving said fastener to be urged thereby toward said terminal member. The surface of the washer facing the terminal member has rib means formed thereon which are disposed substantially radially with respect to the axis of said aperture. Said rib means define at least two spaced apart protruding surfaces proximate at least one side of said washer, each said surfaces including a pair of edges for bitingly engaging a wire to be retained substantially simultaneously in multi-point contact in response to advancement of said washer toward said terminal member by said fastener.

Abstract: A monitor is provided for a field planting machine having a plurality of planting units and a plurality of seed sensors respectively associated with the planting units for producing seed signals in response to the dispensing of seeds thereby. The monitor comprises a plurality of sensor circuits coupled in series circuit, one of the sensor circuits being coupled intermediate each of the sensors and a common signal line. These sensor circuits and the associated sensors are sequentially selectable for causing a first condition on the common signal line in response to production of seed signals at or above a predetermined rate and a second condition on the common signal line in response to the non-production of seed signals at or above the predetermined rate.

Abstract: A plastic binder for binding lines, rods, or tubes into a tight bundle comprises a binding band and a buckle formed at one end of the binding band and provided therein with a slit for insertion of the other end of the binding band. The operability of this binder is notably improved by a pendant portion which is provided in the portion of the binding band between the buckle and an engaging member for fast attachment of the binder to a panel and which is adapted so that the lowermost portion thereof falls below the lower end of the buckle. When the binder is provisionally attached to the panel, the pendant portion causes the buckle to rise amply from the panel surface and facilitates the insertion of the band into the buckle.

Abstract: An improved system for processing an electrical velocity information signal in a velocity detecting system in which a detector is utilized for developing an electrical information signal, such as a Doppler signal, having a characteristic (e.g. frequency) that varies systematically with the object's velocity. A converter develops an oscillatory signal having a frequency which varies in accordance with the velocity information signal characteristic. A tracking filter having a center frequency that varies with the oscillatory signal filters all frequencies other than the center frequency. A signal generator is responsive to the frequency of the signal passed by the tracking filter for generating an output signal having a frequency which is a preset ratio relative to the center frequency, whereby the output signal of the system is relatively noise-free and has a frequency which represents the velocity of the object being detected.