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New Four-speed Gearbox

19th February 1954
Page 38
Page 38, 19th February 1954 — New Four-speed Gearbox
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ANEW four-speed commercialvehicle gearbox, with synchromesh mechanism incorporated in all forward gears, has been introduced by the automobile gearbox division of David Brown and Sons, (Huddersfield), Ltd., and is now in production.

Designated the David Brown S450 model, this gearbox was designed for passenger and goods-vehicle application. Prototypes were installed in the Seddon Pennine coach with underfloor engine. The box is now available for vehicles of 91-ton capacity (14 tons maximum loaded weight). Weighing 310 lb. including clutch housing, the S450 is capable of transmitting a maximum engine torque of 300 lb.-ft.

It can be supplied with clutch housing already fitted, or as an independent unit. A compact forward-control unit, with the control rod mounted on universal joints, allows for variations in layout and permits substantial tolerances in assembly. Primary, main and layshafts are mounted horizontally in an unusually shallow aluminium casing which gives maximum ground clearance without prejudice to a low, uninterrupted floor level.


A N international conference on electrodeposition and metal finishing is to be held in London from April 20-24 under the aegis of the International Council for Electrodeposition. It will include over 24 papers and an exhibition of metal-finishing techniques and equipment.

Applications should be sent to the conference secretary, Fourth International Conference, Institute of Metal Finishing, 42 Great Ormond Street. London, W.C.1, Among the authorities contributing to the conference are the Ford Research Centre, Birmingham, and Ford Motor Co., U.S.A., Willmot-Breeden, Ltd., and Aluminium Laboratories, Ltd., Banbury.


SERVICE equipment is to be displayed at branch premises of Brown Brothers, Ltd., and Thomson and Brown Brothers, Ltd., as follows: Reading, March 8-13; Leeds, March 22-27; Preston, April 5-10; Newcastle upon Tyne, April 26-May 1. Technical representatives will be in attendance, and the displays will be open to all operators.


" RIGID economy" at Plymouth is IX expected to result in a profit of £7,985 at the end of the current financial year. If fuel tax is not increased and pay is not raised too high, there should be a surplus of £6,040 at the end of 1954-55. The transport department lost £46,325 last year.

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