1–50 von 167 Ergebnissen
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    Problems of aircraft engine altitude lubrication and their solution

    Heldt, P.M. | Engineering Index Backfile | 1945

    Gas turbine development -- Past and present

    Heldt, P.M. | Engineering Index Backfile | 1944

    Gear tooth compression-stress chart

    Heldt, P.M. | Engineering Index Backfile | 1935

    Demand for space economy may revive opposed engines for trucks, buses

    Heldt, P.M. | Engineering Index Backfile | 1932

    French diesel operator shows 8 to 15% savings

    Heldt, P.M. | Engineering Index Backfile | 1932

    Specific output of engines has increased 400 per cent in 30 years

    Heldt, P.M. | Engineering Index Backfile | 1931

    Four-wheel power brake system introduced by Stewart-Warner

    Heldt, P.M. | Engineering Index Backfile | 1929

    Ruxton front-wheel-drive car has drop-type driving axle

    Heldt, P.M. | Engineering Index Backfile | 1929

    Aircraft propeller hub standards adopted by S.A.E.

    Heldt, P.M. | Engineering Index Backfile | 1929

      Aircraft propeller hub standards adopted by S.A.E.

      Heldt, P.M. | Engineering Index Backfile | 1929

    Aero engine of fixed radial type designed by cameron

    Heldt, P.M. | Engineering Index Backfile | 1928

    Franklin "airman" has larger engine

    Heldt, P.M. | Engineering Index Backfile | 1927

    Action of springs should not affect uniformity of transmission

    Heldt, P.M. | Engineering Index Backfile | 1926

    Difficult problems involved in power braking for motor vehicles

    Heldt, P.M. | Engineering Index Backfile | 1924

      Difficult problems involved in power braking for motor vehicles

      Heldt, P.M. | Engineering Index Backfile | 1924

    Features of recent development in truck parts design

    Heldt, P.M. | Engineering Index Backfile | 1922

    Trends in chassis design at the New York show

    Heldt, P.M. | Engineering Index Backfile | 1922

    Severe tractor test at Toronto

    Heldt, P.M. | Engineering Index Backfile | 1917

    Airplane radiator construction

    Heldt, P.M. | Engineering Index Backfile | 1917

    M.A.N. Diesel development

    Heldt, P.M. | Engineering Index Backfile | 1949

    New electro-mechanical transmission

    Heldt, P.M. | Engineering Index Backfile | 1937

    Engine roughness -- Its cause and cure

    Heldt, P.M. | Engineering Index Backfile | 1936

      Engine roughness -- Its cause and cure

      Heldt, P.M. | Engineering Index Backfile | 1936

    Rear and under-chassis mounted engines increasingly popular in motor bus field

    Heldt, P.M. | Engineering Index Backfile | 1935

    Piezo-electric indicators

    Heldt, P.M. | Engineering Index Backfile | 1934

    Parts makers' role gets bigger as automotive history unfolds

    Heldt, P.M. | Engineering Index Backfile | 1933

    Practical methods for determining automobile's center of gravity

    Heldt, P.M. | Engineering Index Backfile | 1933

    Bucciali front-wheel drive car has independent suspension

    Heldt, P.M. | Engineering Index Backfile | 1930

    Shock absorber will be used as steering damper on new Marmons

    Heldt, P.M. | Engineering Index Backfile | 1926

    A technical history of gas-electric drives

    Heldt, P.M. | Engineering Index Backfile | 1925

    New four-wheel drive truck proves satisfactory in army tests

    Heldt, P.M. | Engineering Index Backfile | 1925

    Better cars and trucks may result from iron and steel research

    Heldt, P.M. | Engineering Index Backfile | 1922

    Trend in passenger car design

    Heldt, P.M. | Engineering Index Backfile | 1920

    Motorcycle production has peculiar problems

    Heldt, P.M. | Engineering Index Backfile | 1919

    Electrical equipment for aircraft -- DC generators

    Heldt, P.M. | Engineering Index Backfile | 1942

    Design details on 1939 cars

    Heldt, P.M. | Engineering Index Backfile | 1938

      Design details on 1939 cars

      Heldt, P.M. | Engineering Index Backfile | 1938

    Air-resistance and air resistance-horse power chart

    Heldt, P.M. | Engineering Index Backfile | 1936

    33 cars use independent springing as suspension design sweeps Europe

    Heldt, P.M. | Engineering Index Backfile | 1932

    Front-wheel drive has advantages in riding comfort and safety

    Heldt, P.M. | Engineering Index Backfile | 1929

    Six-wheel design

    Heldt, P.M. | Engineering Index Backfile | 1927

    New electrical equipment line designed for higher priced cars

    Heldt, P.M. | Engineering Index Backfile | 1924

    Elgin chassis has been completely redesigned

    Heldt, P.M. | Engineering Index Backfile | 1922

    A dutch passenger-carrying monoplane

    Heldt, P.M. | Engineering Index Backfile | 1921

    Mechanical features of the Rolls-Royce chassis

    Heldt, P.M. | Engineering Index Backfile | 1921

    Turning out 100 tractors per day

    Heldt, P.M. | Engineering Index Backfile | 1919

    U. S. A. motorcycle engine completed

    Heldt, P.M. | Engineering Index Backfile | 1918

    The twin city "16" oil tractor

    Heldt, P.M. | Engineering Index Backfile | 1918

    Moline universal model D tractor

    Heldt, P.M. | Engineering Index Backfile | 1918

    Distribution of truck weights

    Heldt, P.M. | Engineering Index Backfile | 1918

    Auxiliary inlet and exhaust ports

    Heldt, P.M. | Engineering Index Backfile | 1914

    Automatic transmissions

    Heldt, P.M. | Engineering Index Backfile | 1950

      Automatic transmissions

      Heldt, P.M. | Engineering Index Backfile | 1937

      Automatic transmissions

      Heldt, P.M. | Engineering Index Backfile | 1949