Abstract: A low-noise, high-pressure, high-performance gear pump, including pressure balancing means comprising pairs of surrounding seal members positioned between side walls of a pump casing and bearing means for bearing a driving and driven shafts associated with respective intermeshing gears to form pressure chambers between each pair of said pairs of surrounding seal members, and passage means provided through said bearing means for leading oil under intermediate pressure into said pressure chamber; and oil recovering means suitably associated with said pressure balancing means to enable the smooth recovery of oil used for lubrication.

Abstract: A method of producing composite material for bearings or sliding members, comprising applying pressure, by rolling, simultaneously to a strip having a steel backing and a layer of copper-base alloy bonded to the steel backing, and a strip of lead-base alloy with the copper-base alloy layer positioned between said steel backing and said lead-base alloy strip, said pressure being such as to bond the two strips to each other to form the composite material.

Abstract: An inductive body for high frequency induction heating of cylindrical work piece being equipped with at least one collar portion. The inductive body has at least one gap of specific dimensions opposing the collar portion, so as to avoid local density of magnetic flux within the article to be heated.

Abstract: A pulse time interval measuring system in which a desired input signal is selected from among a plurality of input signals each consisting of a plurality of pulse signals, and the time interval between predetermined pulse signals in the desired input signal is measured by a CR time constant circuit to give a digital display of such time interval.

Abstract: A sliding bearing member comprising:A. polyacetal resin baseB. organic fibersC. hydrocarbon lubricating oilD. metallic soapE. solid inorganic lubricant.