Food bags for high temperature sterilization wherein a bag film is provided with the interior surface layer being formed of a material such that components of the material which are transferred into the packaged foods during the high temperature sterilization treatment are held to only extremely small amounts and within prescribed limits. The film is sealed into bag form by the provision of a heat...

38 A windpower system includes a support and a turbine having a shaft rotatively mounted to the support. The turbine has variable pitch blades whose pitch is controlled by the differential motion of a rotary control shaft coaxial with the turbine shaft and the turbine shaft itself so that the blade pitch can be varied by a stationary motor without requiring any slip rings or other such wear-prone ...

Apparatus for improving tire uniformity includes contra-rotating grinding wheels (32, 34) for removing tire material from the upper and lower shoulder portions of the tire (16). The grinders are moved on an assembly (18) into grinding engagement with the tire along a path that is defined by a radius of the tire to ensure that both grinding wheels at each shoulder of the tire make simultaneous cont...

The present invention relates to a safety binding of a boot on a ski comprising two lateral clamps (4) movably mounted under the action of an elastic member (28) parallel to the plane of the ski (3) between a closed position in which the clamps coact with the sole of the boot and an open position. Each clamp (4) is connected to one end of a longitudinally slidable strip (45) by means of articulate...

An electrophotographic plate-making material comprising a paper support and a photoconductive layer is described. This paper support is prepared by providing a polyolefin resin layer on both surfaces of a paper substrate by molten extrusion lamination, and is characterized in that the volume electric resistance is not more than 1010 OMEGA and the polyolefin resin layer contains electrically cond...

An electrical heating device comprises a substrate, an elongated conductor extending longitudinally of the substrate, a semi-conductor pattern carried on the substrate and electrically connected to and extending from the conductor pair, and a sealing layer overlying the conductor and sealed to the substrate at opposite sides of the conductor. The conductor comprises a pair of rectangular in cross-...

A polyurethane is disclosed which can be used in particular for the production of articles intended to be in contact with blood, characterized in containing a macromolecular chain comprising nitrogen atoms in the form of quaternary ammonium groups, to which molecules of heparin are bonded, these nitrogen atoms originating from polymers consisting of q recurring units of the formula:

PURPOSE:To enable the inspection of the output port at a microconputer by discriminating the signal level of a check port. CONSTITUTION:As an inspection signal (a) is transmitted to a microcomputer 2 due to start of the engine or others, an output port P10 is set at the prescribed signal level while the signal output is fed to a check port P20 connected to a signal line. Then, after a specified ti...

There is disclosed a mechanical type or device, to suitably spread apart new tread rings to be applied on the carcasses of worn tires, in the retreading thereof. The device comprises, substantially, a base bearing a horizontally extending axially rotatable shaft at one end of which there is keyed a bevel gear wheel. The latter meshes with a plurality of bevel sprockets, which are located along a c...

A method of operating a fluidized bed heat exchanger in which a perforated plate is disposed within a housing for supporting a bed of particulate material which is introduced into the housing through an inlet. Air is passed through the plate to fluidize the particulate material and a drain pipe is provided for discharging the spent material from the bed. The flow rate of air introduced into the be...

A biaxially-oriented amorphous polyamide film and the preparation thereof are described. The film exhibits good physical and optical properties. In a specific embodiment, the amorphous polyamide is a product of the polymerization of 2,2-bis(4-aminocyclohexyl)propane with a mixture of adipic acid and azelaic acid. The polymer is extruded as a sheet and biaxially oriented under described conditions ...

A method for producing low density polyester foam includes heating the resin to a temperature in the range of from 80 DEG to 140 DEG F., combining the resin with a blowing agent such as a sulfonyl hydrazide, combining the resulting admixture with a catalyst, and depositing the catalyzed resin on a surface. The density of the resulting foam can be decreased by incorporating a flourinated hydrocarb...

A process for producing a highly expanded polypropylene foam which is uniform in viscosity during extrusion foaming, improved in melt strength and free from unevenness of surface by using a polypropylene resin having a specified melt tension.

The disclosure is directed to improvements in a process for preparing curable polyolefin polymers in which a mass of dry, discrete, free-flowing particles of polyolefin polymer is tumbled in admixture with a curing agent effective to cause curing when the finished product is subjected to curing temperature, which comprises tumbling said mass in two separate and discrete steps in which essentially ...

A non-fogging coating composition, which comprises (A) 0 to 50 parts by weight of epoxy group-containing organic silane compounds or partial hydrolyzates thereof, (B) 20 to 80 parts by weight of a polyhydric alcohol having an ethylene oxide chain, (C) 10 to 75 parts by weight of a polymer or copolymer having at least 20% by weight of repeating structural units having the general formula ...

Process for the preparation of water-in-water secondary dispersions of homo- or copolymers of (meth)acryl compounds through the dispersion of fine particle polymers of the type cited in an aqueous solution which contains in dissolved form from 2 to 50 weight percent of a polymer of ethylene oxide and/or propylene oxide having a molecular weight of from 500 to 10,000. The secondary dispersions can ...

A method for mounting for a spot-type disc brake with an actuating device consisting of a piston (40) and a cylinder (38). The cylinder being closed by a cover (60) on one side and a dust boot (42) being positioned between the cylinder, and the piston, which dust boot is formed with annular beadings that are secured in circular grooves of the cylinder and of the piston, respectively. The dust boot...