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This series of articles continues the theme of Mr. Brewer's previous series, “Lubrication—Management Responsibility”. The series deals with the lubrication of industrial plant, but with the intention of ‘educating’ Management to the importance of ensuring that production is not lost because of faulty lubrication.

The following is a paper presented to the SAE National Fuels and Lubricants Meeting at Tulsa, Oklahoma, on November 5th, 1954 by ARTHUR M. BRENNEKE (Chief Engineer) and M. E. ESTEY (Chief Research Engineer) of the Prefect Circle Corpn., and we consider that their work, though, as they said themselves, largely inconclusive, may inspire some new approaches to the solution of old problems notably that of cylinder bore wear. The paper should certainly invoke discussion from those whose work is reported to have proved exactly the opposite of some of the results that these authors have obtained. We are accordingly printing this paper in full.

This paper aims to investigate the lubrication regime in spherical pump, especially under different structural parameters and operational conditions.

A ball-on-plane configuration is adopted to represent the contact model between spherical piston and cylinder cover. The governing equations, which include the Reynolds and elasticity equations, are solved and validated by Jin–Dowson model. Both minimum film thickness and lambda ratio (ratio of minimum fluid film thickness to combined surface roughness of the piston and cylinder cover) of the equivalent model are obtained using an established model.

The results indicate that piston diameter and radial clearance are the two main factors affecting the pump lubrication regime. Other related parameters such as rotation speed of the piston, load, viscosity of working medium, material matching and surface roughness of piston and cylinder cover also have different impacts on the lubrication regime of the spherical pump.

These results emphasize the importance of the design and manufacturing parameters on the tribological performance of spherical pumps and these are also helpful in improving the spherical pump lubrication regime and enlarging its life cycle. This is to certify that to the best of the authors’ knowledge, the content of this manuscript is their own work. This manuscript has only been submitted to this journal and never been published elsewhere. The authors certify that the intellectual content of this manuscript is the product of their own work and that all the assistance received in preparing this manuscript and sources has been acknowledged.

In this series of articles, the author reviews some of the problems involved in the lubrication of modern automobiles and suggests how the use of additive treated oils can assist in their solution. Later parts will cover fuels, oil consumption and drain periods, transmission lubricants, chassis lubrication, etc.

Examines the tenth published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects. Subjects discussed include cotton fabric processing, asbestos substitutes, textile adjuncts to cardiovascular surgery, wet textile processes, hand evaluation, nanotechnology, thermoplastic composites, robotic ironing, protective clothing (agricultural and industrial), ecological aspects of fibre properties – to name but a few! There would appear to be no limit to the future potential for textile applications.

WHILE we shall be dealing in the main with two principal types of centralised lubrication as it is known today, namely the Dualine Grease System and the Circulating Oil System, the Single Line Grease System will be described and dealt with by Mr. Pryce who is following us with his paper.

The current hypothesis on the mechanism of dry and boundary friction conceives solid surfaces in contact as forming very minute welds or adhesions on the isolated areas of true contact. When sliding occurs, these welds are broken and new ones are formed. Other phenomena may also take place during sliding, but the present paper deals only with observations of the adhesion factor.

A method extensively used in the production of optically flat and finely finished surfaces is that of lapping the surface upon a plate using a loose abrasive mixed into a slurry form with a carrying fluid. If the surfaces finished in this way are in continuous or intermittent sliding contact, it is the author's opinion that any abrasives retained in their surfaces will affect surface wear. This paper reported on some exploratory work to indicate the degree of embedment of abrasive in certain materials lapped by hand.

The Presidential Address to the Liverpool Engineering Society by Mr. Farthing (the salient points of which are reproduced in this issue) has particular bearing upon lubrication and especially on young lubrication engineers. Mr. Farthing stressed the very wide field open to young engineers and the difficulties associated with training in order to cover as wide a field as may be necessary. It is usually so important to gain a wide knowledge before one can specialise and this is certainly the case with lubrication engineers. One cannot begin to fully appreciate the intricacies of a lubrication system with all its accessory components lubricating and guarding, for example, a large motive power plant or rolling mill, until one has more than a mere working knowledge of the plant itself, the duties it must perform, how it performs them and the snags that arise which might be overcome by correct lubrication. In view of the fact that lubrication systems are just as important in a textile mill as in a power station or a large brick works, the almost impossible‐to‐achieve‐range of knowledge that would simplify the work of a lubrication engineer is very obvious. Fortunately, lubricating principles apply to most cases and knowing how to apply one's knowledge from basic principles is the key to success in this difficult profession.