Abstract: A valve actuator with an instrument mounting pad and a manifold in a power module and yoke combination for mounting a valve controller instrument without tubing or mounting brackets. A cover encloses the feedback linkage between the actuator and instrument. The actuator includes a second instrument mounting pad and manifold so the power module is reversible to accommodate fail-safe opened or fail-safe closed valve conditions. A valve actuator and instrument combination is no higher than the actuator alone.

Abstract: A diverter valve for Roman tubs also serves as a vacuum breaker. The valve disc which diverts the water flow to the shower head is spring-loaded to close the shower head line if the pressure at the water inlet drops below a predetermined minimum.

Abstract: A valve assembly 20 includes a housing or bonnet 22 and a stem 24. The valve assembly 20 further includes a thrust washer 26, an O-ring 28, a reversible stop 30 and a retainer 32. A coupler 34, a rotatable ceramic disk 36, a fixed ceramic disk 38 and a bottom seal 40 complete the components of the valve assembly 20. The rotatable disk 36 is assembled by a tight fit with the coupler 34 which, in turn is assembled with a drive bar 90 of the stem 24 by a tight fit. The assembled stem 24, coupler 34 and rotatable disk 36 are assembled within a bore 52 of the housing 22 with a shank portion 74 of the stem 24 extending outward from an opening 56 of the housing 22. The fixed disk 38 is assembled fixedly within the bore 52 of the housing 22 in facing engagement with the rotatable disk 36. The seal 40 is assembled within an opening 54 of the housing and is placed in sealing and retaining engagement with the fixed disk 38.

Abstract: An automatic transmission includes a casing housing a transmission mechanism and having a wall with a through-hole. A first plurality of electronic components is mounted exterior to the casing and a second plurality of electronic components is mounted on the interior of the casing. A sealed wire terminal is mounted in and closes the through-hole 21. An electronic control unit is mounted in the sealed wire terminal 22 and cables electrically connect the electronic control unit to the first and second pluralities of electronic components. The sealed wire terminal includes a seal member supporting the cables and sealing the through-hole. Thus, the automatic transmission and the electronic control unit can be combined before mounting on a vehicle.

Abstract: A cartridge-type valve is disclosed which is capable of having the flow of hot and cold water to the valve reversed for use in back to back installations. An adapter gasket is provided which has three independent pathways. In one position, the adapter effects respective fluid communication between hot and cold water inlet pipes and hot and cold water inlets in the stationary valve portion. In a second position, when the adapter gasket is removed from the valve body and turned over, communication between the hot and cold water inlet pipes and the hot and cold water inlets in the stationary valve portion is reversed. In both positions, the adapter gasket also effects communication between the outlet of the valve and the outlet of a valve housing, and further it seals all connections at all times.

Abstract: A non-refillable valve for a pressurized container which includes a unidirectional stepped valve housing within which a freestanding blocking element is housed. The blocking element is preferably a reversible, symmetrical check that integrally includes stop means for preventing the return of said blocking element to an initial location after it has been moved to a final location that activates the one way characteristic feature of a non-refillable valve (where activation is designed to take place after initially charging of the container). Further aspects of the invention relate to blocking elements (checks) per se which are suitable for use in non-refillable valves.

Abstract: The combination of a cylindrical rotary distribution valve which is supplied pressure fluid alternately at either end to sequentially supply and exhaust pressure fluid such as compressed air radially to a selectively reversible hoist motor and a directional spool valve disposed in parallel valve body bores and interconnected with the rotary distribution by short direction passageways provide a compact one body valve electing efficient air distribution and exhaust.

Abstract: A small diameter piston is provided at one end of a valve shaft having a plurality of the valves, a large diameter piston is provided at the other, the valve shaft is moved by the acting of pilot pressure. A first operated passage communicating with a large diameter pressure chamber is opened and blocked by a first solenoid, a second operated passage communicating with a small diameter pressure chamber is opened and blocked by a first solenoid. A by-pass for communicating between an intake port and the small diameter pressure chamber is formed. A fluid passage changing block is provided at the outside of the small diameter piston of a housing. A by-pass communicating hole and a communicating hole for a second operated passage are opened at the fluid passage changing block in order to convert the initial position and the actuated position. The valve shaft is operated by the operation of the first solenoid with communicating between the by-pass and the small diameter pressure chamber at the initial position.

Abstract: A modular valve for fluids comprises a valve housing (16) having a plurality of fluid ports, a spring-loaded switching rocker (18) which is adapted to be inserted into the valve housing (16), and an electromagnetic valve drive (20). Between the valve housing (16) and the electromagnetic valve drive (20) a generally magnetically non-conductive plate (30) is inserted having locally limited magnetically conductive regions (32, 34) for the electromagnetic valve drive (20) to act through on one of two limbs of the switching rocker (18), whereas the other limb is not able to be acted upon magnetically. Valve members provided at the opposite ends of the switching rocker (18) and poles (44, 46, 48) of the electromagnetic valve drive (20) are arranged symmetrically with respect to a plane containing the rocker axis (50) and perpendicular to the intermediate plate (30).

Abstract: A combination of parts including a single piece valve body for a valve which is interchangeable between a straight valve and an angle valve. Each of the three bores of the valve body is adapted to operatively receive the valve opening and closing mechanism, the other two bores receiving fittings for attaching the flow conduits. One of the bores is perpendicular to the other two bores. If the opening and closing mechanism is received in this bore, the assembly comprises a straight valve. If the opening and closing mechanism is received in one of the other bores, the assembly comprises an angle valve. The three faces of the valve body through which the bores extend are machined substantially identically and symmetrically to the center thereof which is the point of intersection of the axes of the bores so that each bore is able to accommodate interchangeably the valve opening and closing mechanism and the fittings.

Abstract: A mixing valve comprising a modular cartridge non-rotatably mounted in a housing. The cartridge includes inlet passages in its bottom portion, outlet passages in its top portion, and a pressure balance valve intermediate and in communication with said inlet and outlet passages. The inlet passages are in communication at their downstream ends with supply ports in the housing. The outlet passages are in communication at their upstream ends with a volume and temperature control valve plate. The volume and temperature control valve plate is rotatable to align or misalign outlet apertures in said plate with the outlet passages in the cartridge. The rotation of the plate is controlled by a stem attached to a handle. Means are provided to adjust the maximum water temperature. The temperature adjustment means include an orienting stem ring having an opening shaped to receive a complementary shaped section of the stem.

Abstract: Disclosed is an adjustable apparatus for regulating the flow of fuel into a carburetor by use of a specially designed fuel metering rod. The hollow rod includes four different sets of holes along its sides at one end, each set separated from the adjacent sets by ninety degrees (90.degree.). The holes of each set are graduated from large to small, and each set covers a different range of hole sizes. The rod slides into a housing on the side of the carburetor, the holes regulating the amount of filtered fuel delivered to the carburetor. By sliding the rod, different sized holes on the rod line up with the exit opening in the housing to the carburetor. Sliding the rod also moves a linkage which causes the opening or closing of the air valves of the carburetor. The rod may be removed and rotated (either 90.degree., 180.degree. or 270.degree.) to allow a different set of holes to line up with the exit opening to the carburetor.

Abstract: A device to fasten a power supply connector unit 18 to a solenoid valve assembly 1 comprising multiple solenoid valves 2. The fastening device has a side plate 4 having a vertical first fitting surface 21a and a horizontal second fitting surface 21b, two pairs of positioning recesses 22a and 22b and two pairs of engaging recesses 23a and 23b on the two fitting surfaces, two each projections 29 and hooks 30 on the connector unit 18, and an opening 20 to pass lead wires extending over the two fitting surfaces.

Abstract: A stop member and an invertible quarter turn insert for the stop member for allowing ready interchangeability of knob handles and lever handles on quarter turn two handle faucet valves. The stop member includes a stop detent and an arcuate groove bounded by the side edges of the stop detent. The invertible quarter turn insert comprises a generally annular member having a ring portion and a stop tab having a section extending above the plane of the ring portion and a section extending below the plane of the ring portion. One section of the stop tab is inserted into the groove on one side of the stop tab with the other section of the stop tab cooperating with the stop detent to extend the arc of the stop detent in one circumferential direction.

Abstract: The present invention relates to an ON/OFF solenoid valve assembly which utilizes a set of common or universal components and a set of non-common or special components that can be assembled into a normally-open solenoid valve or a normally-closed solenoid valve. In particular, the common components are assembled into a base assembly onto which the non-common components are assembled to provide either of the normally-open or normally-closed solenoid valves.

Abstract: An indexable latching handle assembly for quarter-turn rotary valves which permits the arc of operation to be oriented as necessary to avoid surrounding obstacles and enhance ease of operation. This handle assembly has a latching device capable of latching the valve in the closed position or in the open position and is readily disengaged without regard to the orientation of the handle on the valve.

Abstract: A device for controlling fluid flow through a conduit includes a ball valve with a ball having a conduit terminating at an end thereof in an outlet orifice having a non-circular shape. The orifice shape is compound and may be selected to linearize the flow/ball angle relationship. The ball may be reversible to permit reversing the flow change dynamic and may also be a flow reducer.

Abstract: A fuel dispensing nozzle easily and readily convertible between two modes which meet the regulations and operational requirements of the United States and European countries, the nozzle including a body member having a fuel passageway therethrough, a main valve in the fuel passageway to control the flow of fuel through the passageway, the main valve being removably mounted in the fuel passageway and reversible when the nozzle is to be converted into a different mode, and a valve actuating mechanism for opening the main valve in one direction when the main valve is in one attitude and in the opposite direction when the valve is in its reversed attitude.

Abstract: A valve block assembly for controlling the flow of operating air to air operated mechanisms of a section of an I.S. machine comprising at least one valve block including a plurality of valves, each of the valves having an inlet chamber for receiving operating air, a conduit associated with each valve for directing operating air away from the valve towards the air operated mechanisms or for directing exhaust air from the air operated mechanism to the valve, and an exhaust channel for directing exhaust air away from the valves, and a manifold including means for supplying operating air to the inlet chambers, an exhaust channel for receiving exhaust air from the valve block exhaust channel, and a corresponding plurality of conduits communicating with the valve block conduits for delivering exhaust air from the air operated mechanisms to the valve block conduits or for directing operating air received from the valve block conduits towards the air operated mechanisms.

Abstract: A guidance control system for trailing implements attached to a tractor is disclosed. The system can function to steer the implement in a row crop, for example, and can also steer the tractor. A proportional servo valve having a rotatable spool is disclosed, which valve can be controlled to operate in an open center or closed center modes of operation.

Abstract: The invention is directed to an electromagnetic valve unit which comprises a valve body, on which a plurality of electromagnetic valves mounted in parallel with one another, with the terminals of the valves exposed. A frame, which has a connector portion with through holes defined therein, is secured to the valve body for enclosing the electromagnetic valves. A conductive member is integrally formed with connector terminals and contact pins which are connected with respective terminals of the electromagnetic valves. A cover is provided for covering the conductive member. The connector terminals of the conductive member are pressed into through holes which are defined in the connector portion of the frame, and the contact pins of the conductive member are electrically connected with the respective terminals of the electromagnetic valves.

Abstract: A pneumatic actuating drive (1, 61) for final control elements comprises a drive housing (6) and a drive component (15) movable therein, to which the drive component (15) is attached a drive element (24) that exits from the drive housing (6) and that can be moved together with the drive component (15), and which has the function of actuating the actuator (1, 61) and which divides the drive housing (6) into a pressure chamber (16) and a reset chamber (17) with a reset element (19, 20) that acts on the drive component (15). The actuating drive (1, 61) furthermore comprises a position controller (41) whose output (48) merges into an internal supply duct (49), which is connected to a transfer connection (35, 62) on the reset chamber side on the drive element (24), whereby the drive element (24) exhibits an air duct (30), which originates from the transfer connection (35, 62) and merges into the air duct (30).

Abstract: The invention relates to a shower control valve assembly which includes a casing mountable in a wall with inlets for hot and cold water. A cartridge is insertable into the casing in one of two orientations so that the hot water inlet of the cartridge can be aligned with either one of the casing inlets, depending on which one is the hot water inlet. The casing has two outlets, one for the shower and the other for the tub. There is an integral bypass which takes water from the tub outlet to the shower outlet upon activation of a diverter valve. The cartridge is of the pressure and temperature balancing type, with water of the desired temperature flowing to the tub outlet and then to the tub or shower as desired. Each water inlet in the cartridge includes a check valve which, in one position allows water to enter the cartridge, and in the other position prevents water from leaving the cartridge through the inlet.

Abstract: Device including a disk provided with two through holes suitable to be arranged at two ducts which extend from the bottom openings of the cartridge for the inflow of hot and cold water, and including a flat face suitable to connect to the end of the ducts, as well as a dividing element extending from the other face and dividing the portion of the well comprised between the base and the disk into two separate chambers for the inflow of hot and cold water respectively.

Abstract: A removable cartridge type valve which affords right and left hand conversion in the same valve. A stop member which affords the conversion is preferably positioned outwardly of the valve housing so that the conversion can be made without turning off the water supply. The stop member requires only a rotation of 90.degree. on the valve stem and also serves to retain the valve stem in a valve housing.

Abstract: A self-inflatable air mattress having a built-in bellows. A portion of the air mattress support is manually moved up and down actuating the bellows to introduce air into the mattress. The air inlet is of large area and a substantial amount of air is introduced upon each manual actuation of the support. A valve may be associated with the bellows and air inlet to selectively reverse the air flow so that the air mattress can be quickly deflated, if desired.

Abstract: The device has a disk provided with two holes for the inflow of hot and cold water and with a hole for the outflow of hot, cold or mixed water. The disk has two faces: a first face which faces the cartridge, and a second face provided with an adjacent tunnel which connects the outflow hole formed in the disk to at least one well outflow opening, and forms two separate chambers for the inflow of hot and cold water respectively.

Abstract: A device for correcting interchanged pipe connections in a sink or bathtub faucet has a housing 1 with passages 10,11 for hot and cold water. From each passage tap lines 14, 15 run to a cylindrical recess 2 having a flat bottom 22. Discharge pipes 5,5' for mixed water are also led to the bottom by tap lines 16,17. The two feed tap lines 14,15 and, diagonally opposite, the discharge tap lines 16,17, empty centrally. A connector 6 installed in the recess 2 is provided with passages 34-37, which starting from annular channels 18-20 located at the bottom, lead to openings of feed pipes 24-27 in a fitting housing 9. The connector has two pieces, a central part 7 installed interchangeably by 180.degree. in a peripheral part 8. The connector 6 can also be rotated by 180.degree. on the housing 9, or by 360.degree. together with the housing.

Abstract: A valve block assembly for controlling the flow of air at either of two pressures to the air operated mechanisms of a section of an I.S.

Abstract: A pneumatic control drive 1, 51, 71 for control devices, in particular control valves, comprises a drive housing 5 and a drive member 11 displaceable therein and to which is affixed a drive element 18 displaceable together with said drive member 11 to actuate the control device and exiting the drive housing 5, said drive member dividing the drive housing 5 into a pressure chamber 12 and a reset chamber 13 with a reset member 15, 16 loading the drive member 11. A position controller 3 is adjacent to one of the chambers (13) and communicates through an inner air-supply duct 30, 28, 55, 74 with the pressure chamber 12, a vent duct 35, 58, 76 issuing from the reset chamber 13 toward a vent aperture. In the invention, the drive element 18 comprises an air-supply duct 24, 25 issuing at the side of the drive member 11 away from the position controller 3 into the pressure chamber 12 there.

Abstract: A solenoid valve, particularly a built-in valve, having a valve housing which is provided on the end surface facing away from the installation side with means for the connection of electric lines which are outside the valve housing. The valve housing (6) is further provided with at least one electrically conductive contact track (3, 3') of the shape of a circular disc which is insulated from the valve housing and is electrically connected within the housing with the magnet (4), and a cup-shaped cover (2) can be placed over the end of the valve housing (1) having a contact track (3, 3'), the cover being provided on its inside on the bottom with at least one contacting element (5, 5') which engages under spring action with the corresponding contact track, the contacting element being electrically connected to electric lines (16) which are external to the housing.

Abstract: A casing bore (29) running parallel to a valve center longitudinal axis (5), with cross bores is furnished at a second longitudinal side of a multifunction multiport slider valve with a valve casing, with a sealed connector plane (3) furnished at a first longitudinal side (2) for supply lines, control lines, user lines and ventilation lines, and with a corresponding support plate. In order to increase the number of functions performed by the multiport slider valve and to easily adjust said slider valve, the casing bore (29) is subdivided into two longitudinal sections (29a, 29b) with individual cross bores (30). Turnable and displaceable sealing discs (32), furnished with openings (33), are disposed in front of the joined ports (31) of the cross bore (30), and cross channels (36), and connected to the pressure line (P), the control line (Z, X), the ventilation lines (R or S) are led starting from the longitudinal side (2) into the two separate longitudinal sections (29a, 29b) of the casing fore (29).

Abstract: A gas valve includes two solenoid valves connected fluidically in series. A housing assembly contains a circuit board on which electrical components and a plurality of plug terminals and pin terminals are mounted. The plug terminals are adapted to be connected to the solenoid valves and the pin terminals are adapted to be connected to external circuitry. The housing assembly is adapted to be attached to the valve body either in a first position wherein the pin terminals extend in a first direction or in a second position wherein the pin terminals extend in a second direction. The housing assembly and the solenoid valves are adapted for enabling connection of the solenoid valves to the circuit board when the housing assembly is in either the first or second position. The solenoid valves are operated by direct current and are so mechanically constructed as to operate in a relatively quiet manner.

Abstract: Liquid level control apparatus consisting of a valve frame with supply gas throughput through an adjustable orifice post and a float actuated release of orifice post pressure to cause a sharp change in pressure to actuate a pressure-responsive dump valve. Proposed then is the further interconnection of the valve frame in reversed disposition to a snap action pilot valve thereby to provide a non-bleeding mode of valve control.

Abstract: A modular valve has a valve housing which defines a manifold interface having a normally open port, a normally closed port and a common port. A manifold block is mounted to the valve housing with its valve interface sealed against the manifold interface. The valve interface of the manifold block has first, second and third valve ports which lead to respective first, second and third mounting ports at a mounting interface of the manifold block. The first, second and third valve ports and the normally open normally closed and common ports are arranged to communicate with one another in either of two angularly spaced positions of the valve housing relative to the manifold block. In one position, the first valve port comunicates with the normally open port, the second valve port communicates with the normally closed port, and the third valve port communicates with the common port.

Abstract: A longitudinally controllable adjustment device, in particular a gas spring partially filled with a fluid, has a piston disposed on a piston rod and a valve, inside of which a valve body is slidable in its longitudinal direction. It has a tapered section by which a seal, abutting on a sealing face, can be bridged. In order to make possible a long-stroke embodiment and a short-stroke embodiment, the seal has two sealing beads, of which the one sealing bead sealingly abuts in all embodiments against a truncated cone-like sealing face of the valve body, while the other sealing bead, if required, abuts on an optionally provided additional cylindrical sealing face between the truncated cone-like sealing face and the tapered section.

Abstract: A cartridge type valve is disclosed which is capable of having the flow of hot and cold water to the valve reversed. An adapter is provided which is receivable in a valve body and has two independent passages. In one position, the adapter effects respective fluid communication between hot and cold water inlet pipes and hot and cold water inlets in the stationary valve portion. In a second position, when the adapter is removed from the valve body and turned over, communication between the hot and cold water inlet pipes and the hot and cold water inlets in the stationary valve portion is reversed. An adjustable temperature control feature is also provided.

Abstract: An electromechanical valve assembly is provided for regulation of hydraulic or pneumatic flow. The coil assembly of the solenoid portion of the valve is spring biased against the valve assembly. The coil assembly can be rotated through a full 360 degrees about the valve assembly to allow connection to an electrical wiring harness.

Abstract: A multiple component solenoid valve having a valve part, solenoid part and cap part. The solenoid part which actuates the valve part is reversible relative to the valve part so as to allow the valve to be either of a normally-open type or a normally closed-typed.

Abstract: A solenoid valve and manifold assembly wherein a solenoid pilot change-over valve can be selectively used as of the internal pilot type or as of external pilot type. The manifold comprises a gasket capable of being disposed between a manifold body and a valve body of a change-over valve of the solenoid pilot change-over valve alternatively in first or reverse second orientation and having a supply hole, an internal pilot hole and an external pilot hole formed therein. The supply path is communicated with an inlet port of the valve body by way of the supply hole whether the gasket is disposed in the first or second orientation.

Abstract: A water purifier includes a canister containing a reverse osmosis filter unit and threadedly engaged with a control head which is adapted to be coupled to a source of tap water, to a purified water storage tank, to a faucet or other remote usage location and to a waste water drain. The head includes a normally-open inlet valve controlling the flow of tap water to the filter unit and a drain valve controlling flow of waste water to the drain. The inlet valve closes in response to back pressure in the storage tank when it is filled to shut off the apparatus. A normally-closed and normally-disabled bypass valve can be selectively enabled for opening in response to a predetermined lower back pressure in the storage tank when it is less than completely full for diverting purified water from the filter unit to the drain. The drain valve is continuously adjustable between fully open and fully closed conditions.

Abstract: A pilot regulator has a main housing with a sensing chamber and a separate receiving chamber. The sensing chamber connects to the system for sensing. The receiving chamber is adapted to connect its inlet to the system upstream of the pilot and to the load line of the valve to be controlled and to connect its outlet downstream thereof, a cartridge containing a complete valve is removably received in the receiving chamber in position to control flow therethrough between the inlet and outlet. And a mechanism is disclosed for opening and closing the valve in response to sensing chamber pressure changes. The cartridge with its valve are removable as a unit for repair, mode change or replacement without disturbing connections to system.

Abstract: A fluid diverging system provides a passageway for supplying a fluid from a single supply source to a plurality of sections requiring the use of the fluid and for discharging the fluid from these sections to a single discharge portion. The fluid diverging system includes a plurality of fluid diverging blocks separably connected to one another longitudinally in a row. Each of the blocks has a through-hole longitudinally passed therethrough, and a communication passage communicating with the through-hole and capable of being connected to external fluid transfer means. Joint means connecting these blocks enable a fluid-tight communication of these blocks with one another. This makes it possible to use the fluid diverging system in an optical form only by increasing or decreasing the number of the fluid diverging blocks in accordance with an increase or decrease in number of the section requiring the use of the fluid.

Abstract: The transom-mounted valve includes a valve sleeve disposed in the drain port of a boat transom and carrying a valve stem for axial movement. The valve stem includes a valve head movable with the stem between valve-open and valve-closed positions. A cap is releasably secured on the inboard end of the sleeve and mounts an actuating cable guide and anchor, as well as a cam pivotally carried by the cap and attachable to the movable portion of the actuating cable. The cam engages the valve stem. Upon rotation of the cam by linear movement of the actuator cable, the stem is moved against the bias of the spring from the valve-closed to the valve-open position with the spring bias closing the valve when the cam is moved to the valve-closed position.

Abstract: A mounting plate (20) is positioned between a manifold (18) and a pair of fluid pressure transmitters including a differential pressure transmitter (22) and a gauge pressure transmitter (24). The fluid pressure from high and low pressure taps or lines (14, 16) placed on opposite sides of a flow restriction (12) of a main flow line (10) is measured and transmitted to a remote location by the transmitters (22, 24). The mounting plate (20) has low and high pressure ports (62, 64) for differential pressure transmitter (22) and a low pressure port (66) for a gauge pressure transmitter (24). A connecting fluid passage (68) connects the low pressure ports (62, 66) and a block valve (80) is movable between open and closed positions to permit or block fluid communication between the ports (62, 66) and fluid communication between the transmitters (22, 24).

Abstract: An assembly which includes a linkarm joining a valve having a rotatable mounted first shaft on which a butterfly is mounted and a actuator having a second shaft which reciprocally moves in a linear path. The linkarm includes a plate having first and second apparatus for engaging the first shaft and first and second apparatus for engaging the second shaft. The first and second apparatus for engaging the first shaft includes apparatus limiting engagement between the first shaft and the first and second apparatus for engaging the first shaft to specific angular positions. The specific angular positions are rotated with respect to each other in some embodiments.

Abstract: A valve and an arrangement for testing and draining a fire suppression water sprinkler system includes a valve which has a valve member with first, second and third ports which are provided at right angles to one another. The selective rotation of the valve member interrupts a flow of water through the valve and permits a flow at two different preselected flow rates.

Abstract: An operating apparatus for a hydraulic shovel for operating a plurality of control valves which control the operation of work devices includes pilot type control valves, pilot valves, levers for operating pilot valves, and an operating pattern switching valve. The operating pattern switching valve has a rotary spool inserted into a casing. A plurality of input ports are provided in a peripheral surface of the casing with phases deviated from each other axially and peripherally. A plurality of output ports are provided oppositely to the input ports.

Abstract: A control unit for controlling the hydraulic system of a construction machine, such as a hydraulic shovel, having a structure capable of being simply and quickly changed from one setup for another setup suitable for a desired mode of control operation. The control unit comprises a control lever pivotally supported for movement in longitudinal and transverse directions, and first and second link rods for transmitting the operating force of the control lever to first and second hydraulic control valves when the control lever is shifted in the longitudinal and transverse directions, respectively. An operating force transmitting member is put on the control lever so as to be rotatable about the axis of the control lever, and a locking member is mounted on the control lever so as to be slidable along the axis of the control lever and so as to be unable to rotate relative to the control lever.

Abstract: A mounting plate (20) is positioned between a manifold (18) and a pair of fluid pressure transmitters including a differential pressure transmitter (22) and a gauge pressure transmitter (24). The fluid pressure from high and low pressure taps or lines (14, 16) placed on opposite sides of a flow restriction (12) of a main flow line (10) is measured and transmitted to a remote location by the transmitters (22, 24). The mounting plate (20) has low and high pressure ports (62, 64) for differential pressure transmitter (22) and a low pressure port (66) for a gauge pressure transmitter (24). A connecting fluid passage (68) connects the low pressure ports (62, 66) and a block valve (80) is movable between open and closed positions to permit or block fluid communication between the ports (62, 66) and fluid communication between the transmitters (22, 24).