Abstract: A probe adapted to fit an open end of a sewer or water conduit is provided with jets at an upstream portion and sensors at a downstream portion for detecting jetted fluid. In conjunction with timing means and with means for determining flow depth, such as a bubbler device, highly accurate monitoring of flow rate and volume becomes feasible.

Abstract: A litter box for pet animals is provided with a ventilating enclosure. When connected to means for exhausting air therefrom, the box and the litter in it are ventilated by flow of air therefrom into the enclosure, from which it is exhausted elsewhere. The enclosure is formed by the floor and sidewalls of the box, a partial cover, and a foraminous barrier between the cover and the floor, preferably formed as a skirt on the cover.

Abstract: A stilling device, especially useful in large water or sewer pipes or conduits having overhead access openings, is provided in tubular T-shape. The base of the T conveniently comprises a plurality of telescoping sections adapted to be secured together at given extended length. Openings through one side of the T base in a direction perpendicular to the plane of the T facilitate equalization of liquid level inside with the surrounding level when immersed in a water or sewer pipe or conduit. The cross-bar of the T aids retention of the stilling device in place.

Abstract: A method and portable apparatus for continually monitoring the flow of fluid in an open channel such as in a conduit having a known diameter, a known slope and of material having known surface characteristics. The liquid depth within the pipe is determined by means of an elongated hollow probe placed axially in the bottom of a channel containing the liquid and forcing gas under pressure there through. The measurement of the back pressure represents the depth of the liquid and enables the rapid determination of the rate of flow. It is contemplated that the portable apparatus be interconnected with a portable continual recorder such that the flow may be monitored over any given, desired, time period.

Abstract: Electrically actuated apparatus for sampling liquid from a body thereof provides visible countdown of the time interval between successive samplings and also provides visible countdown of the duration of the time in which individual samples are being taken. The samples are propelled by fluid from an external or internal source of pressure, whichever is greater, interconnected for each sample duration period to a sample intake chamber in the body of liquid being sampled.

Abstract: Cigarette packages are provided with individual pull tabs by applying a strip of pull material to access end surfaces of such packages in sequence and then severing the strip between adjacent packages. Before application of the pull material, each such access end surface is slitted substantially from side to side thereof, and after being applied thereto the pull material covers the slitted part of such an end surface and seals the slit therein. Removal of such a pull tab by pulling upon a non-adherent marginal portion thereof removes the underlying portion of an outer sheath of packaging material from the end surface to permit access to the contents, as by unfolding of a corresponding portion of an inner wrapper of packaging material.

Abstract: Blister packaging of medicaments or the like is accomplished in a succession of discrete stages to provide unit-dose packages in strip form, with one or more blisters per strip. Modular machinery to do so is powered from electrical and pressurized fluid energy sources, and the respective modules abut one another sequentially and conduct the fluid to actuate the various stages.

Abstract: Liquid samples of like composition and like or unlike volume are collected simultaneously. Liquid is withdrawn continuously from a body of liquid to be sampled. The withdrawn liquid is passed continuously into and fills a confining region having multiple outlets. Streams of liquid from the respective outlets are diverted intermittently for sample collection and otherwise are returned to the source body of liquid or to waste. The multiple-outlet confining region is embodied in a plenum chamber, and individual diverter chambers are provided for the streams of liquid from the plenum chamber, together with means for effecting the diversion.

Abstract: Textile strands are crimped by feeding them into and forwarding them within a laterally confining region that terminates in a laterally surrounding fine screen with a flared outlet end. The resulting strand-crimping apparatus or stuffer-crimper type utilizes flow of injected fluid to forward or assist in forwarding the crimped strand therethrough.

Abstract: A packaging container is made from folding blanks of corrugated board or similarly suitable material in the form of a hollow body with at least one end covered by an overlapping end cap secured by circumferential handling of the end cap and clips extending from the container interior through registering openings in the body and end cap and engaged by the band.

Abstract: Textile strands are crimped by feeding them with nip rolls into and forwarding them by fluid jets within a laterally confining region terminating in a laterally surrounding fine screen. The resulting nip-jet stuffer-crimper is a new species of strand-crimping apparatus.

Abstract: Conveyor apparatus for temporary holdup of textile strands, especially crimped strands for setting. Screenlike conveyor belts receive the strand between downwardly converging flights and discharge the strand from between upwardly diverging flights. The conveyor apparatus is housed in a heated steam-fed enclosure.

Abstract: Surface wetting of scored textile film strands facilitates fibrillation thereof. Liquid water of inert aqueous solution is applied by various means in the form of droplets or a thin surface layer to such strands, which then are compressed laterally and longitudinally to fibrillate and crimp them, as by stuffer crimping, in a continuous process optionally including predrawing the strands to increased length.

Abstract: Successive samples are taken periodically from a body of liquid with the aid of pressurized fluid serving as both timing medium and sample propellant. Alternative high-pressure and low-pressure paths for the fluid correspond to high-lift and low-lift uses in sampling apparatus adjustable as to interval between successive samples and duration of taking of each sample, as well as convertible between levels of sample lift.

Abstract: Conveyor apparatus for temporary holdup of textile strands, especially crimped strands for setting. Screenlike conveyor belts receive the strand between downwardly converging flights and discharge the strand from between upwardly diverging flights. The conveyor apparatus is housed in a heated steam-fed enclosure.

Abstract: Successive samples are taken periodically from a body of liquid with the aid of pressurized fluid serving as both timing medium and sample propellant. The sampling apparatus is adjustable as to interval between successive samples, duration of taking of each sample, and sample lift.

Abstract: A biomedical signal processor and process for converting a composite physiologically generated signal having both electrocardiographic and electromyographic components into an electromyographic signal free of interference from electrocardiographic signals. Suppression of the electrocardiographic component is accomplished by conversion of overall gain to zero whenever the signal amplitude exceeds a predetermined setting corresponding to maximum electromyographic signal.

Abstract: Textile strands are compressively crimped by propelling them lengthwise, as by a fluid jet, into a rotating cylindrical chamber having a foraminous surface. Rotation of the chamber aids in collection and temporary retention of the crimped strand until it is withdrawn therefrom at the leading edge of the strand accumulation after about half a revolution. The crimped strand is withdrawn between an edge of the chamber and an adjacent solid surface rotating therewith, as by conical rolls.

Abstract: Conveyor apparatus for temporary holdup of textile strands, especially crimped strands for setting. Screenlike conveyor belts receive the strand between downwardly converging flights and discharge the strand from between upwardly diverging flights. The conveyor apparatus is housed in a heated steam-fed enclosure.

Abstract: Package winding of textile strands uninterrupted by transfer from a full to an empty package is accomplished by delaying lateral transfer of the winding strand from a full to an empty package and by picking up a resulting transfer tail of the laterally transferring strand adjacent the end of the empty package. The transfer delay step utilizes a bistable inertial device located to intercept the laterally transferring strand and to be repositioned thereby and to release the strand after momentary inertia-induced delay during which the strand begins to wind onto the empty package. The pickup step utilizes rotary devices located at the spaced adjacent ends of spindles for the respective packages, such device on the spindle of the package to which the strand is transferring being adapted to engage and grip it. The strand is broken or otherwise severed between the pickup device and the full package, thereby enabling the strand to be traversed onto the empty package.