摘要:
This invention relates to a process for the preparation of a cellulose hydrate moulding which comprises (a) treating a cellulose hydrate moulding while in the gel state, for a period within the range of from 10 seconds to 20 minutes, with an aqueous liquid having dissolved therein at least one plasticizer, a chemical cross-linking agent comprising at least one cyclic urea compound having at least 2 N-methylol groups, and at least one cross-linking catalyst, (b) drying the moulding to a residual water content of from 8 to 12% by weight, and (c) heating the moulding at a temperature within the range of from 100.degree. to 150.degree.C for a period of from 30 seconds to 20 minutes. The invention also relates to a cellulose hydrate moulding prepared by the novel process.
摘要:
For the metered filling of bulk material, especially liquids, into receptacles, especially glass receptacles, there is provided a filling station to which a conveying device leads the receptacles, which are to be filled, individually or in groups. A weighing device determines before the start of the filling operation the tare of the receptacles which are to be filled, and blocks the feeding of bulk material when a specified gross weight has been reached. The conveying device moves the receptacles preferably by means of worm conveyers which are lifted off the receptacles during the weighing and filling operation.
摘要:
An elongated bending core is inserted coaxially in an elongated outer tube. The core has at least one recess which extends along the elongation of the core. An elongated inner tube is inserted into the recess so that the inner and outer tubes together constitute a jacketed tube. The jacketed tube is bent about an axis which is normal to the longitudinal axis thereof to thereby bend the inner and outer tubes simultaneously.
摘要:
This invention relates to a sheet-like structure of polyurethane, which is capable of absorbing water vapor and transmitting water vapor, with a uniformly incorporated additive composed of solid particles of at least one swellable, modified polymer. The invention also relates to a process for manufacturing the sheet-like structure.
摘要:
This invention relates to a sheet-like structure of polyvinyl chloride or a copolymer of vinyl chloride, which is capable of absorbing water vapor and transmitting water vapor, with a uniformly incorporated additive composed of polymeric particles of at least one swellable, modified polymer. The invention also relates to a process for manufacturing the sheet-like structure.
摘要:
The present invention relates to a transport container for the acceptance of any desired articles or products comprising a plurality of wall elements surrounding a hollow space, wherein at least one of the wall elements has a wall sheet, wherein the wall sheet has an inwardly disposed layer and an outwardly disposed layer which are connected to one another by means of one or more walls spaced apart from one another and wherein the inwardly disposed and/or the outwardly disposed layer of the wall sheet is connected to a cover layer.
摘要:
A catch hook for the releasable locking of the backrest connected with the seat part of a vehicle seat such that the backrest can swivel forward. The catch hook is supported in a swivelably articulated manner at the articulated part of an articulated fitting which possibly comprises an adjusting and locking arrangement for adjusting the inclination of the backrest, this articulated part being connected with the seat part so as to be swivelable. The hook jaw of the catch hook engages around a stop for the articulated part in the locking position, this stop being fixed to the seat part. The locking position is secured in a releasable manner by a retaining lever which acts on the catch hook and is supported at the articulated part so as to be swivelable. In order to minimize the structural component parts required for the catch hook arrangement, the catch hook has a control cam forming the upper side of the hook jaw and projecting beyond the hook finger. The catch hook is connected with the retaining lever by a force accumulator which acts on the latter so as to press them against one another. An operable releasing member is articulated at the retaining lever.
摘要:
A conveying device for testing and reprocessing objects (25) processed by a processing station (27), especially labelled objects (25), as for example ampoules, containers or syringes. A conveyor device conveys objects (25) to be processed in a continual, uniform motion through the processing station (27). The objects (25) are held therein in pickups (23). A feeding device (33) leads the objects individually toward the conveying device (21). A checking station (31) examines the processing result. A control stops, in case of determining an insufficiently processed, for example not labelled objects (25b), the feeding device (33) and gradually brakes the conveying device (21). The control then reverses the direction of movement of the conveying device (21) until the insufficiently processed object (21b) has reached again the processing station (27). The object is reprocessed, for example labelled, while the conveying device (21) and subsequently the feeding device (33) are engaged in the original direction of movement. Based on the uniform movement of the conveying device (21), it is possible to obtain high working cycle rates with a gentle conveyance of the objects to be processed and reprocessed.
摘要:
A hinge joint wherein one of the leaves is secured to a fixed part and the other leaf is secured to the pivotable back rest of a seat in motor vehicle and is pivotable with reference to the fixed leaf about the axis of a pintle which can be rotated by a hand wheel or a motor. The other leaf carries a braking member with a cylindrical or frustoconical internal surface which is engaged by the peripheral surface of a prestressed elastic split ring defining a gap for the projection of a blocking element which is affixed to the pintle and urges the split ring into stronger frictional engagement with the braking member when the back rest is acted upon to pivot the other leaf. A coupling device is secured to the hand wheel or to the motor to disengage the split ring from the braking member when the pintle is rotated by the hand wheel or by the motor. The end portions of the split ring flank the projection of the blocking element and are flanked by two protuberances of the coupling device.
摘要:
This invention relates to a process for the production of a shaped article of a plastic material of chemically modified protein, which comprises mixing an alkaline aqueous protein solution with an aqueous solution of an organic tetrafunctional, unsaturated compound of the general formula ##STR1## in which R.sub.1 and R.sub.2 are hydrogen or an alkyl group with 1 to 6 carbon atoms, andR.sub.3 is the group --(CH.sub.2).sub.n --, n being an integer from 1 to 8, or the group ##STR2## in which R.sub.4 is an alkyl group with 1 to 18 carbon atoms, SPINNING THE RESULTING VISCOUS LIQUID READY FOR SPINNING BY MEANS OF A SHAPING DIE INTO A PRECIPITATING LIQUID, WASHING THE SHAPED ARTICLE WITH A WASHING LIQUID, CAUSING AN AQUEOUS SOLUTION OF AN ORGANIC, SATURATED, AT LEAST BIFUNCTIONAL COMPOUND TO ACT ON THE ARTICLE, HEATING THE ARTICLE, OPTIONALLY CAUSING PLASTICIZER LIQUID TO ACT ON IT, AND DRYING.