Abstract: The equipment measures the volume of fluid injected by each injector of the system, and possibly also the relative pulses of the different lines, by measuring the volume of fuel, and possibly also the angle of turn of the injector shaft between commencements of injections of the different lines. To provide signals indicative of the commencements of injection in the various lines, circuitry is provided which comprises a single commencement of injection detector for at least one of the lines, a counter which generates pulses at a rate proportional to the revolutionary speed of the pump shaft and which is reset following the issue of a reset signal, and an artificial commencement of injection pulse generator which generates artificial commencement of injection signals for the various lines of the pump according to a predetermined count of pulses from the counter since the latter was reset following the issue of a signal from the detector.

Abstract: A press comprising a frame with an anvil support and a punch carrier, the latter being mounted on the frame so as to be movable between two ends of travel towards and away from the anvil support. A piston and cylinder arrangement is arranged to act on the punch carrier to urge the latter in a direction towards the anvil support. That one of the two ends of travel of the punch carrier which iscloser to the anvil support is defined by a part or parts of the press itself. A limit switch is operable by means of the motion of the punch carrier, or a part connected thereto, in the said direction when the remaining available travel is a distance which is less than the thickness of an operator's finger, to enable the piston and cylinder arrangement to act on the punch carrier with a working force in the said direction up to the end of its travel.

Abstract: A machine tool having an indexable workpiece support and a tool holder which is moveable to enable the machine tool to operate on different parts of a workpiece while the latter is held stationary by the workpiece support, indexing of the workpiece support enabling a part thereof to be turned from a first position in which a workpiece can be mounted on that part, to a second position to present such a workpiece to the tool holder, whereby one workpiece can be loaded on one part of the workpiece support while another workpiece on another part of the workpiece support is being simultaneously machined by the machine tool.

Abstract: An internally splined rotary anti-backlash component is adapted to engage an externally splined injection-pump shaft end. Fixing pins extend radially through the component and have wedge-shaped ends which protrude into gaps between the splines of the shaft end. This inhibits backlash between the component and the shaft end for a predetermined sense of rotation of the component relative to itself. The component can be disengaged from the shaft end, turned around back-to-front, and re-engaged, to allow the sense of drive to be reversed.

Abstract: An adaptor for use in connecting a drive coupling to a non-splined end of a pump shaft. The adaptor has means at one end thereof for connecting the adaptor to the end of the pump shaft, at least one flat by which the drive coupling can be made rotationally fast with the adaptor, and an opposite end of circular cross-section for location in a hole or recess of corresponding circular cross-section in the drive coupling to align an axis of the coupling with that of the pump shaft.

Abstract: A press having a generally "C" shaped frame, punch mounting means arranged on an upper part of the frame, and anvil support means provided on a lower part of the frame. A relatively deep throat is thereby afforded for sheet metal which may be inserted between said punch mounting means and said anvil support-means. Anvil-support suspension mounting means are provided on the upper part of the frame to allow a further anvil support to be suspended from that part of the frame, whereby smaller work can be operated on by the machine.

Abstract: Apparatus for measuring or otherwise checking phase angles between different lines of a multi-line fuel injection pump for an internal combustion engine, comprising an injector block defining a plurality of cavities. These cavities receive the nozzle ends of the fuel injectors of the different lines. Pressure sensors are arranged in communication with the cavity interiors to detect changes in pressure therein, and means are connected to the pressure sensors to provide a measurement of, or other check on, the phase angles of the different lines.

Abstract: A flowmeter comprising a piston and cylinder arrangement and measuring means arranged to measure the distance through which the piston moves as fluid flows into the arrangement, in which measurement commences with a flying start with fluid already flowing into the piston and cylinder arrangement and the piston is returned to a starting end of its travel before each succeeding measurement.

Abstract: Measuring apparatus for measuring the quantity of calibration fluid delivered by engine-fuel injection apparatus, in which calibration fluid is passed into a hollow cylinder on one side of a piston to displace the latter in one direction along the cylinder and pressurized gas is passed into the cylinder on the other side of the piston to displace it in the other direction and so drain calibration fluid from the cylinder.

Abstract: A cam box assembly, especially for use with machines for testing fuel injection pumps, comprising a cam shaft in the assembly, drive transmission elements connected to the drive shaft, a first rotatable shaft having a drive connection with the transmission elements, a second rotatable shaft also having a drive connection with the transmission elements, a first flywheel mounted on the first shaft, a second flywheel mounted on the second shaft, the two shafts being co-axial with each other and being driven in opposite directions by the drive transmission elements whereby the flywheels likewise rotate in opposite directions, the flywheels being of identical mass.

Abstract: A precision positive displacement flowmeter for providing an accurate measurement of fluid flow at one end of a fluid circuit, comprising a cylinder and piston arrangement constructed to receive and emit circuit fluid continually, and an indicator arranged to give an indication of such flow by monitoring piston movement.

Abstract: Metering apparatus for measuring the quantity of fuel oil delivered by engine fuel-injection means when being tested on a test bench or other testing machine embodying or connected to the said metering apparatus, comprising transparent or part-transparent graduates having plungers or pistons within them which, in use of the apparatus, are displaced in one direction by fuel oil delivered from the injection equipment under test to the graduates, and in the other direction by fuel oil (or other liquid, if desired) delivered from a test bench or other source of supply, the plungers or pistons being readily visible so as to give a direct and accurate reading of the quantity of fuel oil delivered to each graduate.

Abstract: A fuel delivery meter for measuring and indicating the quantity of fuel delivered by engine fuel injection means "on test" comprising a chamber for receiving the fuel, a spring-loaded piston or plunger within the chamber which is displaced as fuel enters the chamber, indicating means which are actuated by displacement of the piston or plunger to give a reading which corresponds to the amount of fuel which has entered the chamber, and fuel flow means for passing fuel into the chamber on the other side of the piston or plunger so as to warm the meter.

Abstract: Apparatus for measuring smoke density comprising a venturi passage through which smoke can pass, and a light source and at least one light-reflecting surface arranged in the vicinity of the passage to pass and reflect a light beam transversely through the throat of the venturi to form a V-shaped or multiple V-shaped beam.

Abstract: Apparatus for testing fuel injectors having their own in-built high pressure pump, the said apparatus comprising means for locating and clamping an injector on the apparatus, and a composite fuel system for supplying fuel to the injector and to different parts of the apparatus, the said fuel system including at least one valve having at least one weight acting on it to produce fuel at a pressure determined by that weight.

Abstract: Apparatus for testing fuel injectors having their own in-built high pressure pump, the said apparatus comprising: removable motion-transmitting means adapted to engage and actuate the high pressure pump of an injector to be tested on the apparatus, driving means comprising a cam-shaft and a motor driving said cam-shaft for imparting motion to said motion-transmitting means, a fuel-collecting nose assembly to receive the nozzle end of an injector to be tested, and an hydraulic clamp for engaging and thus clamping the nozzle end of the injector into the said fuel-collecting nose assembly, the said motion-transmitting means serving also as a positioning means for positioning an injector when the latter is fitted on the apparatus for testing.

Abstract: Apparatus for testing fuel injectors having their own in-built high pressure pump, the apparatus comprising means for axially locating and clamping an injector to be tested on the apparatus, a fuel arm assembly for supplying fuel to an inlet on the injector, and means for mounting the said fuel arm assembly for swinging movement into and out of a fuel-supplying position, the said fuel arm assembly including a valve adapted to make sealing contact with the injector outlet and a spring for urging the said valve into a closed position, the valve being pushed into its fuel-supplying position, against the action of the said spring, when the valve makes sealing contact with the injector inlet.