PURPOSE:To facilitate repairing without enlarging a nail hole and to improve strength and durability after repairing, by a method wherein an inner circumferential wall of the nail hole is heated and dried by inserting a heated drill-like bar into the nail hole, then heated raw rubber is injected into the hole with pressure and cooled naturally. CONSTITUTION:After insertion of filling rubber made o...

PURPOSE:To reduce a number of process by fixing pressure on a pole plate group by a method in which the air in a space to be produced between a spacer and the tips of the fixed plates in the pressed condition is absorbed for forming the projecting parts in the spacer by vacuum molding while housing said pole plate group in a battery jar. CONSTITUTION:A spacer 1 made of a synthetic resin or the lik...

PURPOSE:To prevent coming off of an active material by burying the joining part of the lower sheath of a clad type chathode plate and its tube in a gel- like material. CONSTITUTION:A support 7 is placed in a container. A specified amount of viscus gel-like material prepared by adding water to ''Aerosil'' and adding polytetrafluoroethylene dispersion to these mixture and mixing them is poured in th...

A laser surgical knife characterized by switches, which can adjust an output power within the safe scope from the output power preliminarily set for a laser oscillator, mounted on an attachment of said laser surgical knife which is held by an operating surgeon's hand in order to irradiate laser rays on the affected parts. The present invention can provide a laser surgical knife of which output pow...

Electronic detection systems and methods are provided for detecting the unauthorized passage of a person or object past a checkpoint defined, for example, by a doorway to a room or building, an entrance or exit gate for a piece of property, a post or pole supporting the detection equipment or hidden detection means. The detection system includes one or more alarms which operate either in the vicin...

The present invention relates to a process for producing an of aromatic polyimide film comprising (A) casting on a support a dope containing an amide-type polar solvent and 10-45 weight percent of a polyamic acid having more than 0.4 dl/g an inherent viscosity of more than 0.4 dl/g, (B) concentrating the polymer content to be at least higher than that of the initial dope while simultaneously raisi...

Microporous polylactide powders having an intrinsic isotropic structure being spherical in a shape and containing interconnecting hollow spaces or openings i.e., micropores are obtained by the steps of heating a polylactide in xylene until substantially complete solution is reached; cooling the resultant clear solution; and separating off the xylene. The microporous powder form powders can have ac...

A novel polymer is provided as the condensation reaction product of a non-aqueous mixture of a phenol and an aldehyde in a molar ratio of about 0.5 to 1 phenol to aldehyde, containing refractory fibers, such as carbon, graphite, silica, having an aspect and metal oxides and silicates, which fibers have an aspect ratio of about 10. The phenol is selected from metacresol, orthocresol, 3,5-dimethylph...

Conductor bundles for the concentric coils of a dry inductor having no iron core. The coils define cooling air gaps therebetween, adjacent ones of the coils being electrically connected in parallel and each coil being comprised of turns of a conductor bundle of the same rectangular cross section, the coils having different numbers of said turns. The conductor bundles form the turns of the coils an...

The film (11) extruded from a vinylidene fluoride polymer is subjected to a stretching of at least 200% while still in the molten state, and then cooled rapidly to a temperature below 50 DEG C. The equipment comprises, in series, an extruding device (1) (2), a cooling device consisting of a thermostatically controlled liquid bath (6), the level of which is located at a distance of 10 to 300 mm fr...

In repairing articles of natural rubber or elastomer predominantly of natural rubber with cured polymer or prepolymer (polyurethane/polyurea), adhering advantages are obtained especially at elevated temperatures when the damaged area is treated with halogen-containing oxidant dissolved in 1,2-dichloroethane instead of other solvents.

Dispositif de détection de pierre pour polissoir de pierres à plat programmé, adapté pour être monté sur un chariot mobile sous lequel est place une tête de polissage. Ce système comporte des conduits souples munis de buses de soufflage d'air provenant d'un ventilateur; des canalisations intérieures aux conduits débouchent dans des amplificateurs coopérant avec des détecteurs inductifs reliés à un...

MANAGEMENT CONTROL SYSTEM The present invention is a computer control system for a glass factory having a plurality of individual section glassware forming machines, commonly known as IS machines. The glass factory control system preferably comprises four microprocessor systems, respectively responsible for overall factory control, overall shop control, individual shop control and individual secti...

A tape comprising a polypropylene backing coated on one surface with an adhesive. The backing is biaxially oriented to provide a secant modulus of elasticity measured at one percent elongation in its longitudinal direction of at least about 25x105 kilopascals, will break before it can be stretched in its longitudinal direction by about 55 percent and can be transversely cut by forces of less than ...

A conductor strand 12 for an electric cable 10 is disclosed. The conductor strand includes a solid first wire 16 having a longitudinal axis A1, an inner layer of six solid wires 20 twisted helically about the first wire and an outer layer 24 formed of two different diameter wires. The outer layer includes six third wires 26 spaced circumferentially one from the other leaving a gap G therebetween. ...

Method for suctioning submerged bottom material with the aid of at least a suction pipe connected to a vessel, whereby said suction pipe is lowered from said vessel in an inclined or vertical position and an underpressure is created in said suction tube for suctioning a mixture of bottom material and water through the tube via one or more suction openings near the lower side of the suction tube. T...

A balancing device of a unit formed by a first machine carriage (1) supporting a second mobile carriage (4) on the first, in any direction other than the vertical, by means of a counterweight (6) connected to the first carriage (1) via chains (7, 8). This transmission comprises at least two chains (7 and 8) connected to said first carriage (1) via return-pulleys (13, 14) entrained by said chains (...

In a water-proof photographic camera with an automatic focusing device, a taking lens will be moved to a best-in-focus position by the automatic focusing device when it is detected that the camera is in air enrivonment, and to a fixed focusing position corresponding to a value of camera-to-object distance that is expected to be most frequently used in underwater photography or a value of distance ...

Conventional beam-welding methods have disadvantages in that the total energy efficiency is low and that the bonding zone and HAZ spread due to indirect heating of the weld zone. In the present invention, a wedge-shaped space is formed between the non-contact parts of the articles, and an energy beam, such as a laser beam, an ion beam, and a plasma arc, is projected into the wedge-shaped space so ...

PURPOSE:To switch voice elements, one by one, successively and securely, by inhibiting other storage devices from being read until a specific time is elapsed after the switching of voice elements corresponding to one storage whose contents are to be read. CONSTITUTION:Switches SA-SE for specifying the switching of voice elements correspond to the plural voice elements and storage devices F1, F2......