Polymers, especially hydrocarbon polymers containing ethylenic unsaturation such as vulcanised diene rubbers, can be bonded together by activating the surfaces to be bonded by treatment with a chemical free radical initiator and bringing the treated surfaces into direct contact. The use of a separate adhesive is unnecessary.

PURPOSE:To reduce the size and weight of a device, by a method wherein strength members and non-strength members are arranged on the annular connecting member of a rotor so as to be alternate with each other in the rotating direction of the rotor. CONSTITUTION:The stator 1 of an ultrasonic motor is constituted of an annular elastic body 1a, a piezo-electric body 1b, bonded integrally to the rear s...

1. A device for fixing two cylindrical parts together by means of a sleeve (13, 22, 25) of heat-shrinkable material selected from among the shrinkable polymers, particularly modified polyolefins, polyethylenes and polypropylenes, and rigidly connected, by its internal face (14, 23, 26), over at least a portion of its length, to the external face of a first of said parts, characterized in that said...

A catalyst for the dehydrogenation of hydrocarbons to more unsaturated hydrocarbons comprising:(a) from 50 to 95 percent by weight of an iron oxide, measured as ferric oxide;(b) from 5 to 30 percent by weight of potassium oxide and/or potassium carbonate, measured as potassium oxide;(c) from 0.01 to 9 percent by weight of a vanadium oxide, measured as vanadium pentoxide;(d) from 0.01 to 10...

In a method for checking and monitoring the friction between the traction sheave and the suspension ropes of an elevator, the slippage between the traction sheave and the suspension ropes of the elevator is measured, the elevator comprising an elevator machine, a hoistway and an elevator car and a counterweight moving in the hoistway. The rope slippage is measured either periodically by performing...

In order to obtain a strong and tight glue joint between for example a body plate (1) and a repair piece (2) there is used a method where a pressure leg(s) (19) is placed on top of the joint and retained there pressed down for the curing time of the glue. Suction discs (5) and an intermediate piece (15) may support the pressure leg (19) and a supporting leg (13) acting counter to the pressure leg....

A protector against incontinence comprises an oblong absorbent body which is fixed to a bottom liquid-tight layer extending outside the absorbent body. The lateral edge portions of the layer are folded in over the absorbent body and form side flaps, the distance between the edges thereof being less than the width of the absorbent body at its mid section. The side flaps are fixed at their ends to t...

A die-cut, contoured, catamenial napkin of joined-together layers of sheet material assembled into a sandwich which combines a thin, soft, flexible peripheral portion for comfort with a thick central portion for increased fluid-holding capacity. The uppermost layer is a thin batt of intermingled fibers provided with unbonded low density cushion areas separated by spaced bonded areas comprised of c...

In a device for the tight closure of bags made of flexible material are included a first section (1) and a second section (2) which are in hinged connection at one end (10, 20) of each section. After movement to a position adjacent to one another (closing position) the sections fix between themselves the portion of the bag within which it is to be closed. At the other end (11, 21) a manually opena...

In a device for the tight closure of bags made of flexible material are included a first section (1) and a second section (2) which are in hinged connection at one end (10, 20) of each section. After movement to a position adjacent to one another (closing position) the sections fix between themselves the portion of the bag within which it is to be closed. At the other end (11, 21) a manually opena...

The use of a field interpolation circuit which interpolates by means of equal amplitudes of the information from two successive fields results in a television line standard doubler capable of furnishing a very good picture quality.

PURPOSE:To obtain an accurate demodulation signal by detecting that both radio data and SDK signals are supplied at a time and leading out a 1st or 2nd multiplier output of a costas loop in response to said detection signal. CONSTITUTION:An SDK detecting circuit 22 detects the output DC component of the 1st multiplier 1 to confirm that both radio data and SDK signals are supplied at a time to the ...

In a scanning radiographic apparatus in which the object of the scanning is to project the radiation through a substantially planar region of a body along many linear paths, means is provided for monitoring the progress of the scanning and producing timing signals indicative thereof. The timing signals are used to determine, at least in part, the widths of the aforementioned beams and a characteri...

In a sorting apparatus wherein the items to be sorted are laid on planes consisting of revolving belts that effect the unloading in predetermined points of the path, the motor (6) that controls the rotation of said belts is linked to the same by means of a drive comprising a flywheel (7) and a joint (8), the latter being controlled in turn by means that may sense the speed of rotation of the belt....

Disclosed is a carton stop assembly for use in a machine which performs operations on a carton blank, and which includes a rotatable hub carrying a plurality of spaced radial mandrels, and insertion mechanism for telescopically inserting a carton blank over one of the mandrels. The carton stop assembly includes a track parallel to the one mandrel, having plurality of detents spaced therealong. An ...

PURPOSE:To aim at enhancing the external appearance quality of an upholstery, by applying a cushion material on the foamed material abutting surface side of a core member adapted to be jointed onto the back surface of a foamed material, and by incorporating the foamed material and the core member integrally with each other through the intermediary of an adhesive so that a tolerance of the thicknes...

A method is described for producing electrically conductive circuits on a print base board having a copper lamination attached on one side face thereof, and more particularly relates to such method for producing the circuits of excellent electrical conductivity by effectively utilizing a newly developed electrically conductive copper paste which is specifically adapted to metal plating, wherein at...