摘要:
Foundry mold and core compositions comprising sand, a silicate binder and a hardening agent include an alumina "demolding" agent having an average grain size distribution of less than 40.mu., preferably between 0.2 and 5.mu..
摘要:
Catalysts for hardening aqueous alkali metal silicate solutions comprising mixtures of alkylene carbonate and methyl esters of organic acids are disclosed. The hardening catalysts are primarily useful in the production of high quality foundry molds and cores based on alkali metal silicate binders.
摘要:
The present invention relates to an infusion unit forming a hollow inner space that receives inserted elements, characterized in that it consists of a reinforcement belt that defines the hollow inner space of the infusion unit, said belt including means for taking up the forces generated while infusing on at least one inserted element, the reinforcement belt further including receiving means for each of said elements. The invention also relates to a machine container as well as to a machine with one such infusion unit, and similarly to a method for assembling at least one element to be inserted into an infusion unit. The invention can be used in all types of infusion machines, in particular EXPRESSO coffee machines.
摘要:
A system 10 and process for making beverages by infusing a product contained in a package 1. System 10 has an infusion chamber 7, a closure device 60 including upstream closure element 61 for selectively preventing and allowing access to chamber 7 from upstream of the latter and downstream closure element 62 for selectively receiving package 1 in chamber 7 or allowing package 1 to fall out of chamber 7 by gravity, the position of the upstream closure element 61 conditioning the position of downstream closure element 62 and vice versa.
摘要:
The invention relates to a portion of product to be infused to prepare a beverage characterised in that the said portion comprises a spherical shell made of compacted ground coffee and a core made of ground coffee. The invention can be used to prepare beverages by infusing in any type of beverage preparation device, and preferably those used to prepare espressos.
摘要:
The present invention relates to an infusion unit forming a hollow inner space that receives inserted elements, characterised in that it consists of a reinforcement belt that defines the hollow inner space of the infusion unit, said belt including means for taking up the forces generated while infusing on at least one inserted element, the reinforcement belt further including receiving means for each of said elements. The invention also relates to a machine container as well as to a machine with one such infusion unit, and similarly to a method for assembling at least one element to be inserted into an infusion unit. The invention can be used in all types of infusion machines, in particular EXPRESSO coffee machines.
摘要:
A circuit for generating a reference voltage including: a first current source in series with a first bipolar transistor, between a first and a second terminal of application of a power supply voltage; a second current source in series with a second bipolar transistor and a first resistive element, between said first and second terminals, the junction point of the first resistive element and of the second bipolar transistor defining a third terminal for providing the reference voltage; a follower assembly having an input terminal connected between the first current source and the first bipolar transistor, and having an output terminal connected to a base of the second bipolar transistor; and a resistive dividing bridge between the output terminal of the follower assembly and said second terminal, the midpoint of this dividing bridge being connected to a base of the first bipolar transistor.
摘要:
A preamplifier including an input stage adapted to receiving an analog signal via a connection capacitor, and a differential output stage adapted to providing the signal referenced with respect to a predetermined level, and circuitry for enabling the input stage to accept a signal referenced to the differential stage ground, the signal provided by the output stage being referenced to this ground.
摘要:
The present invention relates to a preamplifier including inputs for receiving input video signals representative of an image to be displayed on a screen, inputs for receiving logic signals representative of information to be displayed in superimposition on the screen, and outputs for supplying output video signals generated based on the input signals or the logic signals. An input receives a control signal to select which signals are used to generate the output video signals. In a first display mode, the signals used are the input signals, and in a second display mode, the signals used are the logic signals. Decoders and controllers allow monitoring of the state of the logic signals which select, in the second display mode, the input video signals to generate the output video signals.
摘要:
The invention relates to an assembly for a machine for preparing beverages by infusion of a liquid, that includes a holder (10), a boiler (20) for heating the liquid for producing beverages, assembling element (21 a,21 b, 25) provided so as to selectively allow the connection and removable disconnection of the boiler on the holder (10), a first fluid communication element connected to the boiler (20) and a second fluid communication element connected to a fluid inlet circuit and/or a fluid outlet circuit, the first and second fluid communication element being adapted to interact in order to provide fluid communication between the boiler and a fluid inlet circuit and/or fluid outlet circuit, characterized in that it is adapted so that the connection and the disconnection between the boiler (20) and the holder (10) respectively enables and disables the interaction between the first and second fluid communication element.