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To provide an up‐to‐date review and design guide for industry users and designers of hydrostatic fluid film journal bearings.

Detailed study and review of published works dating from 1965 to 2004. Comments and comparisons made on findings and ease of use for each. Design guide study summarised in outline form showing relationships and interdependencies of dimensions and parameters.

Some previous design recommendations difficult to use owing to errors, ambiguous use of symbols and undefined terms. Terms are frequently interchanged without definition, sometimes in the same paper. Many works difficult and time‐consuming to retrieve and study without access to comprehensive technical library archives.

Work indicated that more evaluation and practical study may be needed for full study. Guideline approach useful for busy designers to help lead understanding through more detailed works available.

A very useful outline summarising the key features of hydrostatic bearings and the relationships between performance and key design parameters and dimensions. A good introduction for designers embarking on a new bearing design or needing to specify an application.

Encapsulates a widely varied and published field with appropriate cautionary commentary on uses and abuses of current design guides.

This paper emphasises the importance of designing bearings for minimum power dissipation and temperature rise. Criteria are given which enable a designer to arrive at optimum values of any parameter for his particular bearing application.

AT THE Society of Automotive Engineers' Mid‐Year meeting at Detroit in May there were several papers presented which gave details of work that has been sparked off due to the reporting of thickening of crankcase oils in motor cars used at high speeds for long periods of time. This results from increasing use of motorways where it is now possible to travel hundreds of miles at speeds that rarely drop below 60 to 70 mph. Cases have been reported where the engine oil have thickened up to a grease consistency.

Although they are neighbouring Asian countries with many similarities, India and Indonesia have different levels of household expenditure inequality. During the end of 2000s, the Gini coefficient of Indonesia was 9.1 percentage points larger than the Gini coefficient of India. To understand the determinants of this difference, this study decomposes it into the contribution of price effects, demographic effects and labour market structure effects. Differences in expenditure structures (price effects) and demographic characteristics are found to be the greatest contributors to the inequality gap across the two countries. The difference in the education distribution of household heads also has a positive and significant impact on the inequality gap. Differences in the labour market structure, on the other hand, turn out to be less important.

This paper is the third part of a serial studies for constant and variable compensations of the closed-type hydrostatic thrust bearings which has face-to-face recesses couple. The static stiffness of closed-type hydrostatic thrust bearings can then be obtained from the differentiation of recess pressure with respect to worktable displacement. The paper aims to discuss these issues.

In this paper, the double-action restrictors of cylindrical-spool-type and tapered-spool-type are taken into consideration for variable compensation of hydrostatic bearings.

The static stiffness in thrust direction of hydrostatic bearing is determined by the flow continuity equations that are formulated by film flow and compensation flow for each recess, respectively. The type selection and parameter determination of the double-action spool-type restrictors can be obtained from finding results of this study for maximum stiffness in design of hydrostatic bearings.

This study reveals that the appropriate range of recess pressure ratio and design parameters of restrictors for the maximum stiffness can be obtained, the avoidance of negative stiffness is also provided.

A rotary shaft lip seal operates with a lubricant film separating the seal from the shaft. In this paper the authors present experimental measurements of under‐lip temperatures which show that there is an optimum shaft surface roughness, and present thermal solutions for various convective heat transfer conditions which illustrate that the shaft conductivity is the predominant factor which affects the under‐lip temperature.

Tribology at The University of Aston in Birmingham grew out of the existing research interests of members of the Departments of Mechanical Engineering and Physics. The Tribo‐Engineering group lead by Dr. G. K. Lewis, deals mainly with hydro‐dynamic and hydrostatic lubrication problems, whilst the Tribo‐Physics groups, led by Dr. T. F. J. Quinn, deals mainly with the application of modern physical techniques to tribology.

The recent epidemic of food poisoning at Nelson, Lancashire, is an event which is unfortunately not unknown in this country, especially in summer time. It has been said that at least two hundred people have been affected more or less seriously, and that there have been four deaths from acute gastro enteritis. Cases of suspected food poisoning are now in many places compulsorily notifiable to the local authority by medical practitioners to whose notice such cases may have been brought in the course of their practice. As far as we know such notification was not made compulsory before the year 1924, when Wakefield obtained powers under a Corporation Act to do so. A large number of places since that time have followed the lead of Wakefield. Thus among watering places, Cleethorpes, Bridlington, Brighton and Bournemouth; among manufacturing centres, Sheffield, Stoke‐on‐Trent, Bradford, Blackburn, Oldbury, Smethwick, Cardiff and Rochdale have powers of compulsory notification.—Cheap, rapid, and frequent means of road and rail transport has in these days resulted in an enormously increased influx of holiday makers from the manufacturing centres into seaside towns during the summer. Here, then, is a floating population amounting to several thousands. They are at a place that has been freely and emphatically advertised as a health resort. The have come for a “change” in every sense of the word. It is high summer. The weather is hot. The holiday spirit in the air. A very natural result is for people to eat more fruit, ice cream, and fancy dishes than they would ordinarily do. Assume through some mischance there are one or two cases of food poisoning. These are now automatically reported to the local authority, which at once institutes investigations, tries to trace the evil to its source, and check it from spreading. A serious outbreak is a damning catastrophe for the place, and may adversely affect its future for years to come. In manufacturing centres the need for action on the part of the local authority is still more urgent. The danger is perennial. It may easily reach the dimensions of an epidemic in a poor and crowded district. The people are there from necessity not from choice, and there they would have to stay even if the place were swept by cholera. In the County of London notification is compulsory under the London County Council (General Powers) Act, 1932, Pt. II., s.7, which says : “ Every registered medical practitioner, if he suspects that a person is suffering from food poisoning shall notify the Medical Officer of Health for the district.” This section it is pointed out, was drawn up on the lines of the Sheffield Corporation Act, 1928, s.190, one of the main Corporation Acts that insist on notification. There seems indeed to be a growing belief that compulsory notification of food poisoning is desirable in the interests of public health. Processed foods are particularly liable to become sources of infection. Thus the Act just quoted, Pt. II. s.5, states that premises used for the sale or manufacture of ice cream; or for the preparation or manufacture of sausages or potted, pressed, pickled, or preserved meat, fish or other food must be registered with the Sanitary Authority of the district. Under the same section registration may be refused or registration may be cancelled. Many towns have similar regulations. This section of the London County Act is founded on the Exeter Corporation Act, 1928, s.111. The fact that the London County Council have adopted these two regulations that had already been “ tried out ” in two important cities of such widely different interests as Sheffield and Exeter is a good illustration of how closely associated all municipal bodies are in matters connected with public health. Medical Officers of Health and Public Analysts are officers of the Ministry of Health, and the Ministry itself is a clearing house for general information, investigation, and the co‐ordination of statistics. The sanitary authority of, and the medical practitioners in, any given district discharge not only admittedly most important but, as it seems to us, complementary duties. Each has knowledge not possessed by the other. Diagnosis in cases of suspected food poisoning is by no means easy. Time is not on the doctor's side so that the sooner the sanitary authority is notified the better are the chances of being able to trace the trouble to its source and to deal with it— assuming, of course, that it did not originate in some piece of purely domestic carelessness or ignorance. The information acquired may be slight, or even negative in any given case, but in the aggregate a fund of knowledge must accumulate that cannot fail in the long run to be of value. In many cases of suspected food poisoning further investigation has shown that they are not due to food poisoning at all. For instance, in one borough nine cases reported were found to be due to “ dietetic indiscretion ”; in another twenty reported cases were only forms of more or less acute digestive disturbance of the ordinary kind; in another it was found that daffodil bulbs had been eaten in mistake for onions. Other instances could be given. Facts like these would seem to support the argument that compulsory notification is unnecessary, but it is surely better that twenty suppositious cases should be reported than that the circumstances of one real case should escape investigation. In other cases the cause may remain unknown, but as to the seriousness of the matter there can be no doubt. In a recent outbreak in a home for “unwanted” children out of thirty‐nine infants in one dormitory twenty‐seven were attacked, and twenty died in from two to four days from some obscure form of gastro enteritis. Bacteriological examination of excreta and vomit yielded negative results. The high rate of mortality was attributed to the poor physical condition of the children when they were admitted to the institution in which they died. The case is admittedly an extreme one. Another was reported of exactly the opposite character. Twelve cases of undoubted food poisoning were reported, but these were of so slight a character that no action was taken in regard to the circumstances. In general, however, there is no room for giving the benefit of the doubt. The error—even if it may be so called—of reporting what turns out to be a case of indigestion instead of one of food poisoning is an error on the right side. A question arose recently in the House of Commons as to whether it was necessary to retain an Act on the Statute Book when there had been no prosecutions under the Act. It will be remembered that the Solicitor‐General replied that the mere fact that the Act was on the Statute Book had a very salutary effect. As far as it may be possible to draw an analogy it seems that even better reasons exist not only for retaining, but for extending, compulsory notification of cases of suspected food poisoning. Registration and inspection of premises, plant, storage conditions, and the food itself in places where food is prepared and sold is now a general practice in all centres of population. How necessary this is a glance at the Law Reports of this journal will show. The state of the places mentioned in the records of the prosecution was often such as to ensure them being potential centres of food poisoning. Had it not been for the vigilance of the respective sanitary authorities they would have become actively and permanently so. Such prosecutions are comparatively rare having regard to the large number of food shops in existence, but it would certainly be a backward step to cease to register and to inspect.

The study of the upper tail of the income and wealth distributions is important to the understanding of economic inequality. By means of the ‘isograph’, a new tool to describe income or wealth distributions, the authors compare wealth and income and wealth-to-income ratios in 16 European countries and the United States using data for years 2013/2014 from the Eurozone Household Finance and Consumption Survey and the US Survey on Consumer Finance. Focussing on the top half of the distribution, the authors find that for households in the top income quintile, wealth-to-income ratios generally increase rapidly with income; the association between high wealth and high incomes is highest among the highest percentiles. There is generally a positive relationship between median wealth in the country and the wealth of the top 1%. However, the United States is an outlier where the median wealth is relatively low but the wealth of the top 1% is extremely high.