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Tubes Ltd appoint new sales engineer (hydraulic components)
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pump and high conductance poppet valve. The special chamber is fitted with a cylindrical mirror analyser (CMA), coaxial and glancing angle Auger guns, ion gun with deflection and focus facility and high precision sample manipulator. The controls include the latest Auger gun control unit with direct readout of beam current as well as complete C MA and ion gun control units. The system is bakeable to 250'~C and includes gas inlet facility to enable ion bombardment of the sample.
Varian Associates Circle number 44 on Reader Enquiry Service card
Veeeo Instruments Ltd: "Mag-Ion" pump This new sputter-ion pump employs a metallic cathode with a relatively high vapour pressure in the total pressure range of l0 -:~ to l0 - ~ torr in which ion pumps normally operate. The material employed is also highly reactive chemically, sputters easily and thus provides pumping action almost equal to Titanium. As the pressure drops, this unique cathode is actually "outgassing" a closely controlled volume of atoms--but not nearly enough to cause a detectable pressure rise in the vicinity of the chamber. Owing to this effect, enough new atoms are now present in the region of the cathode/anode structure to dramatically increase ionization efficiency allowing more reactive material to be sputtered off the cathodes thus providing high pumping speed. A conventional diode pump produces ionized species available for sputtering/pumping at the rate of 300 A torr 1 for a typical 100 litres s ~ pump. The same pump using a Mag-lon structure will generate ionized species at 460 A torr -~, thus showing a 50 per cent increase in pumping speed. in addition to this increased pumping speed for the same physical size, the Mag-lon pump demonstrates an Argon pumping speed of approximately 20 per cent of its speed for air together with extreme Argon stability and freedom from memory effects.
Veeco Instruments Ltd Circle number 45 on Reader Enquiry Service card
Commercial
news
Europe's new minicomputer strength European minicomputer manufacturers are rapidly gaining in technical strength; prices are continuing to fall; and the choice for the customer is becoming more varied than ever. These are three important trends which emerge from the new ERA guide to minicontputers, a report designed to ease the problem of minicomputer selection. "A year or two ago the Americans were dominating the European market" points out Christopher Fielden, who led the team which prepared the guide. "Their machines were technically ahead of anything the Europeans had to offer, with one or two exceptions. Suddenly, in the last 6 months to a year we've seen a whole series of European machines which are as good as
the best of the Americans." As examples of this new strength, Fielden mentions the M U L T U M from Information Computer Systems, the Heinrich Dietz Mincal 621, the Philips P850, the Mitra 15 from Compagnie Internationale de l'lnformatique (C11), and the Siemens 320. Tile E R A guide to minicomputers published for ERA (Electrical Research Association) by Ovum Ltd at £29, includes details of these and 40 other machines freely available in Western Europe. For the first time it makes available to a wider audience some of the information accumulated by the major research project, "Minicomputers and Europe" which was begun by a team in ERA's Computers and Automation Division in 1970. Since then the team has gained a unique knowledge of the European minicomputer scene, based on numerous personal visits to both suppliers and users. In that time they have seen prices falling by a steady 10-20 per cent a year on average--although, of course, cuts in the cost of particular models may be much sharper. Recent examples include the introduction of the Texas Instruments 960A, at £2085, the cheapest machine covered in the guide, and the Digico 16-V at £2650, little more than half the price of the essentially similar 16-P which it supersedes. On the technical side, probably the most important development from the user's point of view is the continuing trend towards more varied and flexible programming facilities. One outstanding example is the Dietz Mincal 621, where a 256-byte semiconductor random access memory is used to take over the functions conventionally performed by registers. This allows a big gain in register capacity and programming facilities at some cost in speed. Developments like these emphasize the need for users to make a well informed choice if they are going to get the best out of their minicomputer budget. The ERA team estimates that essentially similar minicomputers may differ in price by as much as 100 per cent or £4000. Buyers often spend the equivalent of £1000-£3000 in management time to choose the right system. To ease the problem of choice The E R A guide to minicomputers includes information on both the technology and the suppliers, as well as data on the machines. The E R A guide to minicomputers is available from Ovum Ltd, 22 Gray's Inn Road, London WCI at £29. One unusual feature is that readers who later wish to participate in the full ERA project may credit the cost of the guide towards the project fee.
ERA, Computers and Automation Division Circh, number 46 on Reader Enquiry Service card
Norgren designer range of intermediate compressed air processing equipment C A Norgren Ltd announce a new range of filters, regulators, filter-regulators and lubricators for 4L in. and ~ in. compressed air systems. Its space saving design and
improved features, not least "handsome appearance", provide both the machine designer and factory manager with the best Intermediate Control Units available for their installations. Smaller Compact Filters and Lubricators are also offered with 3 oz nominal capacity bowls replacing the standard ¼ pint nominal capacity bowls. Features include: Filters. Automatic or manual-drain 50, 25 or 5 pm filter element screw-on high strength transparent bowl, excellent water removal characteristics. Regulators. Relieving or non-relieving types 150 psi, 60 psi or 250 psi regulating springs, black plastic knob with snap-action lock. Integral panel mounting ring, diaphragm operation--balanced valve design, fine performance. Integral fiher-regulators. Space saving combination of above. Lubricators. Micro-fog type--wide operating range--operate at flows from 0.5 cfm at 100 psi--automatic flow sensing oil delivered in proportion to air flow. Exclusive new oil feed adjustment with integral snap-action lock. Instant oil delivery. Screw-on high strength transparent bowl.
Norgren Ltd Circle number 47 on Reader Enquio' Scrvice card
Tubes Ltd appoint new sales engineer (hydraulic components) Mr Harold C Josey has recently been appointed an additional Sales Engineer for hydraulic components, by Tubes Limited, a TI Steel Tube Division company of Aston, Birmingham. Tubes Limited is one of the UK's leading producers of heavy steel tube, both hot and cold finished, as well as tubular forgings and fluid power components and sub-assemblies. Born in Croydon, Surrey and educated at John Ruskin Grammar School, Mr Josey served an apprenticeship with Aeronautical and General Instruments Ltd. During the war years he joined the R A F Regiment and left the service in 1947 to return to AGI Limited as assistant contracts manager. In 1950 Mr Joseyjoined Accles &Pollcck Ltd, another TI Steel Tube Division company, and was subsequently appointed estimating manager. In 1971, when the hydraulic components resources of Accles and Pollock were transferred to Tubes Limited, Mr Josey was appointed methods superintendent--a position he held until his new appointment.
Tubes Ltd appoint new sales engineer (forgings) Mr D M Davey, C Eng, MI Mech E, MIWM, has been appointed an additional sales engineer, with responsibility for forgings, by Tubes Limited, Aston, Birmingham, a TI Steel Tube Division company. Malcolm Davey was born in Birmingham and educated at Handsworth Technical School, Birmingham. After an engineering apprenticeship with Wilmot Breedon Limited, he completed two years National Service with the Royal Electrical and 629
pump and high conductance poppet valve. The special chamber is fitted with a cylindrical mirror analyser (CMA), coaxial and glancing angle Auger guns, ion gun with deflection and focus facility and high precision sample manipulator. The controls include the latest Auger gun control unit with direct readout of beam current as well as complete C MA and ion gun control units. The system is bakeable to 250'~C and includes gas inlet facility to enable ion bombardment of the sample.
Varian Associates Circle number 44 on Reader Enquiry Service card
Veeeo Instruments Ltd: "Mag-Ion" pump This new sputter-ion pump employs a metallic cathode with a relatively high vapour pressure in the total pressure range of l0 -:~ to l0 - ~ torr in which ion pumps normally operate. The material employed is also highly reactive chemically, sputters easily and thus provides pumping action almost equal to Titanium. As the pressure drops, this unique cathode is actually "outgassing" a closely controlled volume of atoms--but not nearly enough to cause a detectable pressure rise in the vicinity of the chamber. Owing to this effect, enough new atoms are now present in the region of the cathode/anode structure to dramatically increase ionization efficiency allowing more reactive material to be sputtered off the cathodes thus providing high pumping speed. A conventional diode pump produces ionized species available for sputtering/pumping at the rate of 300 A torr 1 for a typical 100 litres s ~ pump. The same pump using a Mag-lon structure will generate ionized species at 460 A torr -~, thus showing a 50 per cent increase in pumping speed. in addition to this increased pumping speed for the same physical size, the Mag-lon pump demonstrates an Argon pumping speed of approximately 20 per cent of its speed for air together with extreme Argon stability and freedom from memory effects.
Veeco Instruments Ltd Circle number 45 on Reader Enquiry Service card
Commercial
news
Europe's new minicomputer strength European minicomputer manufacturers are rapidly gaining in technical strength; prices are continuing to fall; and the choice for the customer is becoming more varied than ever. These are three important trends which emerge from the new ERA guide to minicontputers, a report designed to ease the problem of minicomputer selection. "A year or two ago the Americans were dominating the European market" points out Christopher Fielden, who led the team which prepared the guide. "Their machines were technically ahead of anything the Europeans had to offer, with one or two exceptions. Suddenly, in the last 6 months to a year we've seen a whole series of European machines which are as good as
the best of the Americans." As examples of this new strength, Fielden mentions the M U L T U M from Information Computer Systems, the Heinrich Dietz Mincal 621, the Philips P850, the Mitra 15 from Compagnie Internationale de l'lnformatique (C11), and the Siemens 320. Tile E R A guide to minicomputers published for ERA (Electrical Research Association) by Ovum Ltd at £29, includes details of these and 40 other machines freely available in Western Europe. For the first time it makes available to a wider audience some of the information accumulated by the major research project, "Minicomputers and Europe" which was begun by a team in ERA's Computers and Automation Division in 1970. Since then the team has gained a unique knowledge of the European minicomputer scene, based on numerous personal visits to both suppliers and users. In that time they have seen prices falling by a steady 10-20 per cent a year on average--although, of course, cuts in the cost of particular models may be much sharper. Recent examples include the introduction of the Texas Instruments 960A, at £2085, the cheapest machine covered in the guide, and the Digico 16-V at £2650, little more than half the price of the essentially similar 16-P which it supersedes. On the technical side, probably the most important development from the user's point of view is the continuing trend towards more varied and flexible programming facilities. One outstanding example is the Dietz Mincal 621, where a 256-byte semiconductor random access memory is used to take over the functions conventionally performed by registers. This allows a big gain in register capacity and programming facilities at some cost in speed. Developments like these emphasize the need for users to make a well informed choice if they are going to get the best out of their minicomputer budget. The ERA team estimates that essentially similar minicomputers may differ in price by as much as 100 per cent or £4000. Buyers often spend the equivalent of £1000-£3000 in management time to choose the right system. To ease the problem of choice The E R A guide to minicomputers includes information on both the technology and the suppliers, as well as data on the machines. The E R A guide to minicomputers is available from Ovum Ltd, 22 Gray's Inn Road, London WCI at £29. One unusual feature is that readers who later wish to participate in the full ERA project may credit the cost of the guide towards the project fee.
ERA, Computers and Automation Division Circh, number 46 on Reader Enquiry Service card
Norgren designer range of intermediate compressed air processing equipment C A Norgren Ltd announce a new range of filters, regulators, filter-regulators and lubricators for 4L in. and ~ in. compressed air systems. Its space saving design and
improved features, not least "handsome appearance", provide both the machine designer and factory manager with the best Intermediate Control Units available for their installations. Smaller Compact Filters and Lubricators are also offered with 3 oz nominal capacity bowls replacing the standard ¼ pint nominal capacity bowls. Features include: Filters. Automatic or manual-drain 50, 25 or 5 pm filter element screw-on high strength transparent bowl, excellent water removal characteristics. Regulators. Relieving or non-relieving types 150 psi, 60 psi or 250 psi regulating springs, black plastic knob with snap-action lock. Integral panel mounting ring, diaphragm operation--balanced valve design, fine performance. Integral fiher-regulators. Space saving combination of above. Lubricators. Micro-fog type--wide operating range--operate at flows from 0.5 cfm at 100 psi--automatic flow sensing oil delivered in proportion to air flow. Exclusive new oil feed adjustment with integral snap-action lock. Instant oil delivery. Screw-on high strength transparent bowl.
Norgren Ltd Circle number 47 on Reader Enquio' Scrvice card
Tubes Ltd appoint new sales engineer (hydraulic components) Mr Harold C Josey has recently been appointed an additional Sales Engineer for hydraulic components, by Tubes Limited, a TI Steel Tube Division company of Aston, Birmingham. Tubes Limited is one of the UK's leading producers of heavy steel tube, both hot and cold finished, as well as tubular forgings and fluid power components and sub-assemblies. Born in Croydon, Surrey and educated at John Ruskin Grammar School, Mr Josey served an apprenticeship with Aeronautical and General Instruments Ltd. During the war years he joined the R A F Regiment and left the service in 1947 to return to AGI Limited as assistant contracts manager. In 1950 Mr Joseyjoined Accles &Pollcck Ltd, another TI Steel Tube Division company, and was subsequently appointed estimating manager. In 1971, when the hydraulic components resources of Accles and Pollock were transferred to Tubes Limited, Mr Josey was appointed methods superintendent--a position he held until his new appointment.
Tubes Ltd appoint new sales engineer (forgings) Mr D M Davey, C Eng, MI Mech E, MIWM, has been appointed an additional sales engineer, with responsibility for forgings, by Tubes Limited, Aston, Birmingham, a TI Steel Tube Division company. Malcolm Davey was born in Birmingham and educated at Handsworth Technical School, Birmingham. After an engineering apprenticeship with Wilmot Breedon Limited, he completed two years National Service with the Royal Electrical and 629