Abstract: A compact lightweight piston/cylinder assembly having a body provided with a plurality of adjacent chambers, each chamber having a piston reciprocally mounted therein. Each piston is secured to a piston guide member which reciprocally moves in the body with each of the pistons. One of the pistons serves as an output piston and is provided with a piston rod extending therefrom.

Abstract: A sonic-type fluid flow measuring system wherein reflections or echoes of an ultrasonic acoustic emitter are sensed and typically comprise a number of frequencies representative of a number of discrete velocities of flow in a volume of fluid. As a sample, they simply appear as a voltage plot as a function of time and wherein the time width of a given signal excursion relates to the frequency of a given signal. Thereafter, this time domain signal sample is converted to a frequency domain sample whereby the presence and magnitude of each frequency component, or velocity component, is isolated, this being typically done by what is known as a Fast Fourier Transform. The highest frequency, velocity, signal from each of a rapid succession of samples is then obtained and stored in a memory. The highest and lowest of these are then discarded, and the remaining are averaged to obtain more likely representations of velocity.

Abstract: A coloring book or the like is provided with image areas that release an appropriate fragrance upon being colored or painted by the user. Microcapsules that contain fragrance oil for a particular fragrance associated with the image area are deposited on the image area of the substrate. Inert walls of materials such as gelatin restrain the fragrance within the microcapsules until activated. A color dispenser such as a felt tip marking pen is adapted to include a reactive agent that when applied to the image area in the normal course of coloring will cause release of the fragrance by rupturing or otherwise interacting with the microcapsules such as by diffusing into the microcapsules and replacing and releasing the oil. The reactive agent may be a solvent such as an alcohol or ketone or a surfactant contained in an aqueous solution mixed with the normal ink or paint of the marking pen.

Abstract: A system for detecting, recording, and maintaining, on an updated priority basis, segments of electrocardiogram (ECG) waveforms containing unusual activities, and including the characteristics of the event including the segment of ECG waveform containing the event, the type of event, the age (A) of the event, the weighting factor (WF) of the event, and the total number (T) of such events stored at an occurrence of the arrival of a new event, and comprising a first storage device (FIG. 1) for temporarily storing the characteristics of each newly arrived event and the individual Ts for each type of event, N memory blocks (MBs) (FIG. 3) for storing, on a basis updated with the arrival of each new event, the characteristics of N events, each stored in a separate MB. Also provided is a first logic (FIG. 4) for determining the highest product of A.times.WF.times.T, which identifies the MB containing the lowest priority event (LPE), herein known as the LPEMB, a second logic (FIG.

Abstract: An improved nozzle texturizer providing for twisting as well as kinking of extruded synthetic fiber material strands is disclosed. Apertures for introduction of heated compressed air into a longitudinally extending bore of the texturizer body at a location below the upper region of the bore are offset longitudinally with respect to one another to create a swirling action upon introduction of compressed air, causing the strands to become twisted, in addition to being kinked in a downstream nozzle region. Passageways into the apertures are disposed at angles of 43.degree. to 45.degree. with respect to the bore, much steeper than in prior devices, to further contribute to the swirling action. The body is made up of a pair of mating blocks with the bore and other apertures defined therein. In order to prevent warpage in use, the texturizer may be made of heat-treated, hardened steel.

Abstract: Apparatus for boresighting a firearm which utilizes a source of light such as a laser transmitter. A light-receiving and directing device carried on the bore directs a light ray along the axis of the bore of the firearm to a target. An optical sight carried on the firearm is adjusted in azimuth and elevation to be in alignment with the light ray as it reaches the target. The source of light is remotely located from the bore of the firearm.

Abstract: An improved sublimation transfer process for printing color images on elastomer-coated fabric such as woven nylon is disclosed. The improved process includes a preliminary step in which a transfer sheet having sublimable dyes placed thereon is subjected to a pretreatment to condition it so as to avoid ghost images or haziness that would otherwise result when applying such process to elastomeric coated material. The pretreatment is carried out by placing the dye-containing transfer sheet in contact with a sheet of absorbent paper and heating this assembly under specified conditions to cause excess dyes to be conveyed into the absorbent sheet. The resulting dye-containing absorbent sheet is then removed, and printing may be carried out using known process conditions. The improved process is particularly useful for printing multicolor images on the back side of Velcro hook and loop tapes.

Abstract: Apparatus for mounting a television set or the like from an ordinary home ceiling that has spaced-apart joists such as two-by-fours placed on edge and a ceiling panel secured to the underside of the joints. The apparatus includes an L-shaped bracket and a hollow shaft connected to one of the legs of the bracket so as to form a U-shaped hook that is engageable in flush contact with a ceiling joist. The shaft extends downward through a hole in the ceiling adjacent to a joist and provides support for a cabinet connected to the shaft. A spacer element is preferably disposed between the cabinet and ceiling, and the cabinet is secured by a disc and nut adjacent to the ceiling and a nut engaging the bottom of the shaft below a support plate connected to the top of the cabinet. Electrical wires and coaxial cables as required are threaded upward through the hollow shaft and are made available for connection to power and signal sources.

Abstract: An apparatus for calibrating an archery bow is described. The apparatus provides for securing a bow at its hand grip portion to a horizontal shaft, the bow being disposed generally perpendicular to the shaft. The shaft is mounted for rotation on a frame, which also supports a trigger spaced apart from the shaft a sufficient distance to engage the bowstring of the bow in fully drawn position. This arrangement allows the bow, when an arrow is fired, to return to its initial alignment. The shaft is mounted on a fixture that may be slid by engagement of bolts in slots of each side of the frame to adjust the shaft ends in the radial direction, and adjustable bolts coaxial with the shaft provide for adjustment in the actual direction. The trigger is secured to a plate that is slidably mounted on the end of the frame opposite the shaft. Adjustments in location of the trigger to accommodate different bowstrings are provided by bolts that ride in slots in support members on which the trigger-holding plate is mounted.

Abstract: Apparatus for preventing jackknifing between a tractor of a trailer truck and a trailer coupled thereto is disclosed. The apparatus includes a latch block that is movable to a deployed position forward of the front edge of the tractor's fifth wheel and a pair of stop blocks, one disposed on each side of the trailer wear plate so that a laterally extending arm of the latch block will come into contact with one of them upon relative pivotal movement of the fifth wheel and trailer wear plate beyond a predetermined angle. Upon making contact, the blocks prevent further angular movement. Arms of the latch block have projecting end portions on their upper side that slide under end portions of the stop blocks which are spaced apart from the wear plate. This secures the latch block from being sprung downward past the stop block upon occurrence of jackknifing. The latch block is supported by a forward extension of the fifth wheel and by gussets that extend underneath the fifth wheel and are welded thereto.

Abstract: A crib mobile responsive to body motion of an infant. The mobile system is based on use of a passive infrared sensor and associated electrical switching of the type employed for security systems that turn on floodlights in response to detection of the presence of an intruder. An A.C. motor, drive shaft, and support rod for the mobile are mounted on an arm that extends from a housing connectable to a ceiling, and the sensor is mounted on another arm. Electrical connection may be made to a conventional A.C. ceiling outlet. The sensor provides a signal to activate the motor when it detects motion above a predetermined level, and it includes a time delay feature that prevents turning the motor off for a period after such motion is no longer detected. Sensitivity of the sensor and the duration of the time delay are adjustable. The mobile structure includes horizontally extending arms for supporting toys or decorative objects for being rotated in a circular path above a crib.

Abstract: A time domain communications system wherein time modulated, impulse derived signals are multiplied by a template signal, integrated, and then demodulated. By this process, usable signals are obtained which would be otherwise obscured by noise.

Abstract: A drive system for rotation of a photosensitive member carried in a removably mountable housing of a process kit used in an image-forming apparatus. The drive system includes a rotatable helical gear loosely carried on a shaft secured to the rotatable photosensitive member. The loosely mounted helical gear is longitudinally movable along the shaft of the photosensitive member and serves to limit any longitudinal movement of the photosensitive drum and thus the process kit housing relative to the image-forming apparatus.

Abstract: A process kit for use in an image-forming apparatus. The process kit includes a development device, a corona discharger, and a cleaning device disposed in spaced relation around the periphery of a photosensitive drum. Each of the above-mentioned components, including the drum, are releasably mounted in a primary housing which is disposed for insertion into the image-forming apparatus. A bracket is disposed at the opposite ends of the development device, corona discharger, cleaning device, and photosensitive drum to releasably secure these components in the primary housing in a manner which provides access thereto for refurbishment or replacement thereof. A removable cover is removably mounted over openings provided in the housing.

Abstract: A foldable children's playhouse having a box beam integral with one or two roof panels is disclosed. The box beam has a U-shaped cross section, with the integral panels being foldable along a line extending longitudinally at the open end of the box beam. In a preferred embodiment, walls of the playhouse are made up of two units, each including a rectangular side wall and an end wall having a rectangular bottom portion and a triangular gable portion that folds along the top of the bottom portion. The roof is attachable to the walls by placing it in alignment over the walls and engaging top edges of the walls with channels on the underside of the roof so as to obtain a force fit. Means such as Velcro fasteners are provided on overlapping surfaces for securing the wall units to one another. A rail for strengthening the roof is disposed around the edges of and underneath the roof, the rail being obtained by folding over of edge regions to provide a support member having a triangular cross section.

Abstract: A portable postal scale for determining whether the weight of a letter exceeds the maximum for a given amount of postage, for example, one ounce. The scale has a beam in the form of an elongated block with two thicknesses. The flat bottom surface of the thicker portion terminates in a transverse edge that serves as a fulcrum. The thinner end has a clamp for holding a letter, and that end is intended for extension over the edge of a table or desk so that downward movement of the letter is unobstructed. If the letter exceeds the maximum, the thinner end will pivot downward around the fulcrum. The thinner end has a flat bottom surface parallel to the bottom surface of the thicker end and spaced apart a distance corresponding to the maximum letter thickness for a given amount of postage, for example, one-fourth inch.