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New Hydraulic TransTRIALS are being made in mission System Tried A Detroit with an all-hydraulic in U.S.A transmission system employing
a pump and fluid motors. This is quite different from the ordinary hydraulic clutch. A 40 h.p. industrial-type pump was mounted in place of the clutch, and an hydraulic motor of equal capacity was fixed to the front end of the propeller shaft, the two being connected by tubing. Included in the circuit were an oil reservoir and a radiator. In later designs it may be possible also to eliminate the propeller shaft, differential and axle driving shafts, in which case, separate hydraulic motors would drive the rear wheels individually. The system can also be used as a brake. Similar schemes were developed many years ago, the main troubles then being oil leakage, overheating. frothing A20 and loss of efficiency, but some of these may have been overcome. We are indebted to "Transport Topics" for our information.
3EEKING a little relaxation from his ordinary reading, a North of England oil-engine enthusiast purchased from H.M. Stationery Office a book on atomic energy. He was able to get on well with the introduction and the first two or three pages, but soon became tangled up with such expressions as "neutron bombardment of uranium." "heavy pulses of ionization," the "magnetron and the ionic centrifuge," "nuclear binding energies," "natural alpha particles from polonium," etc. By page 20 he almost collapsed and his relaxation theory has fallen through.
A Little Light Reading Which Failed to Please
nNE of our staff, while `-"taking a holiday in Jersey, met Mr. P. T. A. Macready, motor traffic inspector of the. States of Jersey. He occupied this position during the German occupation and he mentioned that the occupying forces commandeered all buses, except 17 single-deckers and the doublc deckers, which the States managed to retain after a struggle. The question of the supply of fuel soon arose, however, and the Germans issued a fiat that there should be none for passenger transport. At this stage, Mr. Macready produced to the Germans a copy of " The Commercial Motor," dated January 20, 1940, and showed to them a four-page article, entitled "How the Enemy Tackles Producer-gas Problems." They appeared to know nothing on this subject, but managed to obtain the necessary equipment from Germany. Subsequently, buses in the Channel Islands ran with these
How the -"C.M." Helped Jersey's War Tvansport
gas-producers; using charcoal made locally; thus the passenger-transport ,problem was largely solved and greater comfort afforded to the inhabitants, entirely due to this article and Mr. Macready's initiative Requirements in I ISE and construction reguTrolleybus Design ‘dtations, as they concern
Under Review trolleybuses, are under review by the Ministry of Transport, and it is agreed that, so far as conditions are comparable, they should be similar to those for selfpropelled vehicles of corresponding dimensions. It is believed that in the revision, specifications for spring spacings and wheel track will be abandoned; instead, reliance will be placed on a tilting test. Pending such revision, it will be in order to build them to comply with the appropriate regulations applicable to publicservice vehicles, but, in this case, with a tilting angle of 25 degrees.