Abstract: A liquid composition, suitable for use in an air freshener, comprising a vessel for the composition, an emanating surface and a wick for supplying the liquid to the emanating surface, contains 20 to 70% water, 8 to 30% perfume and diethylene glycol monobutyl ether and is substantially free of surface active agent. The compositions show an improved, steady rate of emanation of the perfume.

Abstract: A pipe propelling device comprises two sets of jack assemblies spaced from each other and arranged in the direction of propelling the pipe in a vertical shaft having a reacting shaft wall so that the small diameter pipe such as water supply and drainage pipes, gas pipes and cable laying pipes can be propelled from the interior to the exterior of the vertical shaft by the extension of two sets of the jack assemblies. To reduce the dimension of the vertical shaft due to propel the pipe, eliminate the interposition of a strut in propelling the pipe and secure an operative space in the vertical shaft, the jack assemblies comprise a plurality of first stage jacks connected to the reacting shaft wall and at least one second stage jack, a cylinder of the second stage jack being connected to cylinders of the first stage jacks.

Abstract: The disclosure is of an improved process for the Oppenauer oxidation of geraniol/nerol to obtain citral. The improvement comprises the use of selected tertiary aldehydes as hydrogen acceptors.

Abstract: Method for removal of malodorous and/or toxic components from waste gases by biological treatment of the same. Such removal is accomplished by passing the gas stream through a humidifying temperature conditioning section and then through a filter bed. The filter bed consists of a mixture of an organic biological active material, like compost, an inert fraction and additives for neutralization and organic buffening. Also disclosed is the inoculation of the filter bed with specific micro-organisms adapted to remove constituents of the gas stream which are difficultly biodegradable, e.g. methylenechloride.

Abstract: An apparatus for maintaining the warp threads in a multi-beam loom at a constant tension includes tension sensors for each beam, and a microprocessor-based control circuit which provides individual speed control signals to the motors during each beam. The circuit samples the warp tension at regular intervals and recalculates the optimum speeds for each motor by taking into consideration the transverse effects on each beam caused by adjacent beams.

Abstract: A smoking article, such as a cigarette, has a filter which incorporates a volatile smoke-modifying agent. The filter comprises zeolite granules impregnated with the volatile agent. A cavity-type of filter may contain between 10 and 200 mg of mentholated zeolite granules. The loading level of a menthol on the zeolite granules may be within a range of from 3 to 60 mg/g. Cellulose-acetate plugs may be provided at the ends of the filter cavity.

Abstract: A mouthpiece element for a cigarette comprises a duct which extends from the periphery of the element at a first location, spaced from the mouth end of the element, to the mouth end of the element at a second location, spaced from the periphery of the element. The element is attached to a cigarette rod by tipping which permits the ingress of air to the duct at the first location. Preferably, during smoking the ratio of the velocity of air issuing from the duct at the second location to the velocity of smoke issuing from the mouth end of the element is in excess of at least ten.

Abstract: Cigarette filters comprises a filter element, open for smoke flow at the mouth end, and smoke passage of flow impedance less than that of the filter element. The passage is closed at the downstream end so that smoke is constrained to pass into the element at the downstream end of the passage. The passage may be an annular cross-section duct or grooves at the periphery of the element or may be a bore within the element. The filters provide an increasing degree of filtration as smoking proceeds.

Abstract: Boron compounds such as alkali metal or alkaline earth metal borates capable of forming hydrates or higher hydrates may be formed into shaped bodies by forming into a paste with water and allowing the water to be bound to form a solid shaped body. The bodies are useful as inserts into preformed cavities in structures, e.g. of wood, liable to insect, fungal or other infestation by virtue of the slow dissolution of the insert and the toxicity to such organisms of the boron compounds.

Abstract: A grain silo comprises a wall body having an inner wall surface and a lining coated on the inner wall surface. The lining comprises at least one protective layer which includes hydrophilic urethane resin of one-can type.

Abstract: A system for guiding the blind including at least one receiver/sound generator unit having a built-in sound generator giving information on the destination of the user, and a receiver for actuating the sound generator in accordance with a control signal coming from outside, and a transmitter/control unit carried by the user for producing the control signal. As the user carrying the transmitter/control unit and approaching the destination at which the receiver/sound generator unit is installed, the user actuates the transmitter/control unit to cause it to produce a control signal which actuates the sound generator of the receiver/sound generator whereby an audio signal representing a voice, an onomatopoeic sound, a chime, etc., is produced to guide the user to the destination.

Abstract: The present invention relates to a process for bringing pregerminated seed n a sowable and for some time storable form. The invention further relates to pilled pregerminated seeds.According to the invention the pregerminated seed is pilled, whereas in the pilling mixture at least one compound which slows down the germinating process is included under formation of a moist pill in which a suitable micro-climate is secured until the time of sowing.This required micro-climate inside the moist pill is obtained by addition of compounds which have a retarding action to the germinating process, such as compounds having an osmotic effect, e.g. water soluble sugars and their derivatives, salts, or glycols and their polymers; or having a growth retarding action, e.g. absicine acid.

Abstract: A training mouthpiece for brass instruments in which the walls of the mouthpiece are made of transparent material and the walls of the mouthpiece are of constant thickness to minimize or avoid distoration of view through the walls. The undistorted visual capacity enables a student or teacher of a brass instrument to clearly and undistortedly view the portion of the lips within the mouthpiece thereby providing additional information about the student.

Abstract: Helicopter engine-drive assembly on which the engine and drive unit are connected by a propeller shaft extending inside an articulated tubular member connected in removable manner, at one end, to the casing on the engine and, at the other end, to the casing on the drive unit and consisting of at least two segments at least one of which consists of two portions connected telescopically and secured in a given mutual position by releasable, removable fastening means.

Abstract: A method and a hollow body for forming a hole in the ground are disclosed. After the hollow body has been brought to the desired depth in the ground high pressure fluid is jetted through spray nozzles into the hollow body near the lower end thereof. The fluid jets effect a cutting of the ground core in the hollow body whereafter the pressurized fluid displaces the overhead ground core upwardly. The spray nozzles are spaced circumferentially and lie in the same transverse plane so that a very flat horizontal cut in the ground is accomplished by the fluid jets.

Abstract: A master cylinder reservoir includes a cylindrical body having an open upper end. A cap is fitted on and removably secured to the body, the cap engaging the open end of the body at a lower end portion thereof. The cap has a mounting portion formed adjacent to the lower end portion thereof. The mounting portion defines together with the upper surface of the open end of the body a circumferential space. The mounting portion has a first surface disposed in opposed spaced relation to the upper surface of the open end of the body. The mounting portion has a second surface disposed in opposed relation to the outer surface of the upper end of the body. The outer surface of the upper end is spaced from the second surface adjacent to the upper surface of the body to form a circumferential recess. A diaphragm received in the cap and having a peripheral portion received in the circumferential space and held between the first surface of the mounting portion and the upper surface of the open end of the body.

Abstract: Main helicopter drive for transmitting drive to the countershaft even when the main shaft connected to the rotor is idle, and on which a sleeve, turned by a drive shaft and connected by gears to the countershaft, supports in rotary and axially-sliding manner, an inner tubular body angularly integral with the main shaft; an actuator being connected to the said tubular body for moving it between a normal position, in which the said tubular body is connected to the said sleeve by a freewheel on the latter, and a position in which the said freewheel engages the outer casing of a bearing fitted on to the said tubular body.

Abstract: An air suspension comprises a first housing fixed to a piston rod of a shock absorber, a diaphragm disposed to form a main air chamber in cooperation with the first housing, of which one end is fixed to the first housing and the other end to a cylinder of the shock absorber through an air piston and a second housing provided to form an auxiliary air chamber outside the main air chamber. Communication between the main and auxiliary air chambers is afforded and shut off by a valve unit operated with a pair of coils.

Abstract: A ventilation device for the fuel tank of a motor vehicle is provided with ventilation line (3) which connects the tank with the atmosphere by means of a fuel vapor filter. For regenerating purposes, the filter 4 is connected to the intake system 6 of the vehicle combustion engine 1 by means of a filter exhaust line (5), so that air is taken in through filter 4 when the combustion engine 1 is in operation and thereby the fuel accummulated in the filter is removed.

Abstract: A hot box detector system is provided wherein heat signals from bearings within a housing are analyzed to determine if the scanned surface of the housing is an inner sidewall surface or an outer sidewall surface. The signals are normalized to account for differences in the heat dissipating characteristics of the inner and outer sidewalls and air stream cooling resulting from the trains movement.