All-electric power sweeper

All-electric power sweeper

Vacuum News Torvac contract win Belgian atomic energy establishment Torvac Ltd announce that they have won an order from a Belgian Government ...

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Vacuum

News

Torvac contract

win

Belgian

atomic

energy

establishment

Torvac Ltd announce that they have won an order from a Belgian Government Atomic Energy Establishment after 3 years’ of negotiations. The contract, worth f30.000 is for a 60 kV 3 kW special electron beam welding machine, interfaced to remote handling gear to be used for sealing radioactive isotopes inside metal capsules, a purpose for which electron beam welding is especially suitable. The electron beam welder will be mounted in a ‘hot cell’ and operated from outside the cell. The welding chamber will be loaded by remotely controlled manipulators, and all controls for the welder will be in a special console outside the radioactive area. The Torvac machine lends itself particularly well to this application because of the modular design approach. Torvac Ltd Circle number 39 on Reader Enquiry Service card A giant helium pumping group constructed by Edwards Vacuum for the new superconducting particle separator by CERN at Geneva.

the Edwards system will have to pump will be as large 37,500 m3 h-l. Furthermore the system will be required for 6 months to a year continuously. Edwards are using 6-mechanical booster vacuum system. The largest of these weighs about 8 tons impellors of this pump weigh a ton each.

High built

as to run

pumps in the and the twin

In the refrigeration system, pumped helium gas is re-circulated back to the refrigerator cold box after recompression : hence high purity must be maintained. The pumping system is therefore specially designed to be completely oil-free. Additionally, interstage gas coolers are fitted to keep the temperature of the helium down as it passes, at increasing pressure, through the pumping system. The system is fitted with Edwards Capsulon vacuum gauges. These are instruments of advanced design which have an electrical output which can be used to give feed-back signals for automatic control. Edwards High Vacuum Circle number 37 on Reader Enquiry Service card

Veeco instruments sales and earnings

inc.

announces

6 months

Veeco Instruments Inc (AMEX) of Plainview, New York, leading manufacturer of high vacuum systems and instruments, leak detection equipment, ‘Lambda’ power supplies, and ‘Lambda’ semi-conductor products, today reported sales and earnings for the 6 months ended 31 -March. For the 6 month period ended 31 March 1976, sales were s17,510,472 compared to $17,725,146 for the same period last year. Net income was $773,791 vs. $787,840 a year ago. Net income per share was 61 cents compared to 60 cents in 1975. For the 3 month period ended 31 March 1976, sales were $9,485,689 compared to $8.302.203 for the same period last year. Net income was $509,121 vs. $526,470 a year ago. Net income per share was 40 cents compared to 20 cents in 1975. The Board of Directors, meeting today, declared a regular quarterly dividend of 8 cents per share payable 21 May 1976, to stockholders of record on 12 May 1976. Veeco Instruments Inc Circle number 38 on Reader Enquiry Service card

Liquid

nitrogen

uhv

cold

traps

Vacuum Generators ‘CCT’ range of combination cold traps are in use in laboratories all over the world where ultra-high vacuum performance is required from diffusion pumps. As the leading exponents in this field of uhv technology we have recognized the need for continuous product development. The latest free CCT Data Sheet provides an up-to-date summary on the present state of the art of this versatile vacuum component, and gives new evidence on the clean performance of the CCT Series. Vacuum Generators Ltd Circle number 40 on Reader Enquiry Service card

All-electric

power

sweeper

The new Columbus Dixon L15 ‘Superbroom’ Power Sweeper is an all-electric ‘sit-on’ heavy duty vehicle for both internal and external floor maintenance-a versatility which makes it ideal for use in factories, shopping precincts, promenades, public halls as well as outdoor factory approaches and loading bays, garage forecourts, carparks, playgrounds and passenger stations. Storage batteries enable it to work through 7 sweeping hours without recharging. It is quiet; there is no dangerous trailing flex to inhibit manoeuvrability and no fumes to pollute the atmosphere. Furthermore its suction power takes dust up into the machine over a 45 ft2 filter area. The L15 has three forward and a reverse gear powered by a lf hp compound wound motor. Its turning cycle is only 12 ft. A forward driving speed of up to 54 mph (8.9 kph) and sweeping width of 44 in. (1118 mm) or 51 in. (1295 mm) when a second side broom is added, means that it can clean at rates of between 40,00050,000 ftz h-t. The rotary sidebroom protected by a robust metal collision fender, ensures kerb to kerb or wall to wall cleaning. The main 36 in. (914 mm) broom assembly and each individual brush strip adjusts to counteract wear so reducing the frequency of replacement. Effective suction is created by a 5 hp. 24 V combined motor and fan system. The Terylene ‘envelope’ style filter system incorporates automatic shakers which dislodge dust from the filters into the hopper. When the vehicle needs to be emptied, the debris hopper which is on its own castors is simply detached from the machine and wheeled away to a refuse bin. When servicing is necessary access to interior. Circle

removable

number

side

41 on Reader

panels

provide

easy

Columbus Dixon Ltd Enquiry Service card 301