Abstract: A ball joint (20) for a vehicle, in particular for an off-road vehicle. The ball joint (20) has a housing (21) and a ball stud (22) which is rotatably and pivotably mounted in the housing (21) and which, with a shaft (23), extends out of an opening of the housing (21). The housing opening is protected against unwanted penetration of dirt and/or moisture by f a seal bellows (25). The seal bellows (25) is surrounded in some areas by a bellows protection (30) in order to prevent damage to the seal bellows (25) due to mechanical influence.

Abstract: A mixer for generating a flow of liquid includes a stationary body, an axially extending drive shaft protruding from the stationary body, a propeller, and a clamping sleeve assembly configured to interconnect the drive shaft and the propeller with each other in order to transmit a rotational motion. The clamping sleeve assembly has an axial clamping length and includes an inner clamping sleeve and an outer clamping sleeve. The inner clamping sleeve has the shape of a tubular wall having an inner surface abutting the drive shaft and an outer surface abutting the outer clamping sleeve and wherein the outer clamping sleeve has the shape of a tubular wall having an inner surface abutting the inner clamping sleeve and an outer surface abutting the propeller. Both the inner surface of the outer clamping sleeve and the outer surface of the inner clamping sleeve are cylindrical along the axial clamping length.

Abstract: A ball stud (21) for a ball joint (20) having an annular body (22) pressed onto the ball stud (21). The annular body (22) is held fast to the ball stud (21) by at least one circumferential securing element to prevent loosening, that acts between the ball stud (21) and the annular body (22) and is in the form of a deformation edge (23). The at least one deformation edge (23) is formed integrally with the ball stud (14). A ball joint (20) that has a housing (36) in which a ball stud (21) is held.

Abstract: A constant velocity joint boot assembly includes a boot-can having an axially extending main cylindrical body, a radially extending transition portion, an axially extending and generally cylindrical mounting portion. The radially extending transition portion intersects the axially extending main cylindrical body and the generally cylindrical mounting portion. A flexible boot member may be attached to an inner surface of at least two of the cylindrical body, the transition portion and the mounting portion at a coupling region. A method of forming the flexible boot member includes first forming the boot in an outwardly extending conical shape, and then rolling and/or inverting a portion of the boot so that the boot arcs inwardly upon itself and forms a diaphragm.

Abstract: The present invention provides a coupling device for coupling an input shaft to an output shaft. The coupling device includes a housing having a first end and a second end. The coupling device further includes a first and second set of splines defined along the inner wall of the housing. The first set of splines is disposed near the first end and is configured for engaging splines of the input shaft. The second set of splines is disposed near the second end of the housing and is configured for engaging splines of the output shaft. The length of the first set of splines is substantially the same as the length of the second set of splines.

Abstract: A clamping assembly which includes a first member that has a housing and a plunger that reciprocates within the housing. The first member further includes a first biasing member that biases the plunger in a first direction and a second biasing member that biases the plunger in a second direction that is opposite to the first direction. The first member further includes a bearing positioned within a cavity in the housing such that the bearing reciprocates within the cavity in a third direction that is partially orthogonal to the first and second directions. The plunger includes a first surface that applies a first force to the bearing that is at least partially in the third direction. The clamping assembly further includes a second member that includes a second surface that engages the bearing. The bearing applies a second force to the second surface of the second member that is at least partially in the second direction.

Abstract: An articulation and/or bearing device (1) with a pivot pin (2) whose head area (3), in the assembled condition, is held in a receiving joint cup (4) and, together with the latter, can move axially relative to an accommodating space that acts as a housing (5), is designed such that in relation to the axial movement of the joint cup (4) within the housing (5), the articulation or bearing device (1) acts as a gas pressure spring and/or damper.

Abstract: The present invention provides a coupling device for coupling an input shaft to an output shaft. The coupling device includes a housing having a first end and a second end. The coupling device further includes a first and second set of splines defined along the inner wall of the housing. The first set of splines is disposed near the first end and is configured for engaging splines of the input shaft. The second set of splines is disposed near the second end of the housing and is configured for engaging splines of the output shaft. The length of the first set of splines is substantially the same as the length of the second set of splines.

Abstract: In a cold superconducting joint, a joint cup is provided. Lengths of superconducting filaments are placed in the joint cup. A superconducting material fills the joint cup in contact with the superconducting filaments and in thermal and mechanical contact with a pipe carrying a cryogen. The pipe extends into the joint cup and the superconducting material extends around the pipe within the joint cup.

Abstract: A method of joining multiple powder metal components to form a powder metal component assembly using an adhesive is disclosed. By machining at least one of the powder metal components prior to the adhesive joining, otherwise difficult to machine features can be more easily machined for less cost and at higher production rates. Unlike high temperature joining techniques, the adhesive joins the powder metal components at room temperature. This room temperature adhesive joining eliminates the thermal distortions in pre-joined machined features common to high temperature joining techniques such as brazing or welding that bring these features out of specification during joining.

Abstract: A passage block coupling apparatus is provided with a bolt insertion hole 13 and a pin insertion hole 14 formed in an upper-stage passage block 3, a screw hole 15 and a non-screw hole 16 that are formed in a lower-stage passage block 4, a bolt 11 that is inserted into the bolt insertion hole 13, and threaded with the screw hole 15, and a positioning pin 12 that is inserted to the pin insertion hole 14, with its lower end portion being fitted to the non-screw hole 16. A cut-out section 17 is formed near the lower end portion of the positioning pin 12, and a protruding portion 18 to be fitted to the cut-out section 17 is formed on the opening portion of the non-screw hole 16. A tightening force exerted by the bolt 11 and a force exerted by the lower end portion of the positioning pin 12 to press the protruding portion 18 of the non-screw hole 16 upward are balanced with each other so that an evenly fastened state is achieved so that the passage blocks 3 and 4 are coupled with each other.

Abstract: Method and device for lubricating a connection. A housing is configured to house a crankshaft adapter that connects an oil pump to a compressor. The housing includes a shell forming a round cavity configured to receive the crankshaft adapter; an oil feed conduit configured to enter through the shell into the round cavity and to deliver oil; a first drain conduit, opposite to the oil feed conduit, and configured to enter through the shell into the round cavity; a plug provided in the first drain conduit; and a second drain conduit configured to enter through the shell into the round cavity. The second drain conduit is located between the oil feed conduit and the first drain conduit, substantially between 50 and 130 degrees relative to the first drain conduit on a periphery of the shell.

Abstract: An accessory for profiles used for making frames for sliding windows or doors comprising, amongst other things, a fixed frame formed by two crosspieces and two stiles; the profile forming the first lower crosspiece comprises two sliding tracks, parallel with one another, presented by a lower base body, and heat insulation elements; this profile having an element for connecting and joining two halves of the profile, transversally separate relative to the length of the tracks and together forming the whole of the lower crosspiece; this connecting and joining element also has heat insulation properties.

Abstract: A modular crankshaft features a connection system between modules that features opposed female receptacles. A pin having opposed beveled ends and hydraulic passages with it is inserted into the opposed receptacles. A pair of seals is disposed on the beveled ends and straddles a hydraulic fluid outlet. The crankshaft wall that defines each receptacle is designed to flex in response to applied hydraulic pressure between the seals on the tapered pin portion. A notch at the base of the receptacle in the crankshaft reduces stress concentration and enables the wall defining the crankshaft receptacle to come back when hydraulic pressure through the pin is removed. The opposed crankshaft receptacles are flanged to allow them to be pulled together over the pin. An interference fit results around the pin after the flanges are mated and the hydraulic pressure is removed.

Abstract: A passage block coupling apparatus including a bolt insertion hole 13 and a pin insertion hole 14 formed in an upper-stage passage block 3, a screw hole 15 and a non-screw hole 16 that are formed in a lower-stage passage block 4, a bolt 11 that is inserted into the bolt insertion hole 13, and threaded with the screw hole 15, and a positioning pin 12 that is inserted to the pin insertion hole 14, with its lower end portion being fitted to the non-screw hole 16. A cut-out section 17 is formed near the lower end portion of the positioning pin 12, and a protruding portion 18 to be fitted to the cut-out section 17 is formed on the opening portion of the non-screw hole 16. A tightening force exerted by the bolt 11 and a force exerted by the lower end portion of the positioning pin 12 to press the protruding portion 18 of the non-screw hole 16 upward are balanced with each other so that an evenly fastened state is achieved so that the passage blocks 3 and 4 are coupled with each other.

Abstract: A joinery connection assembly for joining frame members together at a joint includes spigot mounting, spigot with cam surfaces and cam lock having cam surfaces thereon. The spigot is slidably inter fitted with the spigot mounting to provide a spigot portion protruding there from. The cam surfaces slidably inter lock with each other, such that one frame member is pulled to another frame member to form the joint assembly. A method of assembly is also included.

Abstract: Upper coupler assemblies for mounting coupling devices to trailers, and methods for inspecting upper coupler assemblies. The upper coupler assemblies include a housing having first and second members that define a cavity therebetween. At least the second member has a through-hole adapted to receive a coupling device, such as a kingpin. The cavity contains at least one fluid-tight chamber, more preferably multiple gas-tight and liquid-tight chambers by walls within the cavity. The coupler assembly has at least one fluid inlet for introducing and/or withdrawing a fluid (liquid and/or gas) from one or more of the chambers. The integrity of the upper coupler assembly can be evaluated by introducing or removing a gas from the one or more chambers and detecting the presence of any gas leaks in the one or more chambers.

Abstract: A shrink disc unit including a rotating body with a peripheral outer surface and a hub surrounding the rotating body with a peripheral inner surface. The peripheral inner surface and the peripheral outer surface form a separating line between the rotating body and the hub at an angle to a rotational axis of the rotating body. A fluid channel leads through the rotating body or the hub for pressurization of the separating line with a pressure fluid. A fixing device, formed from one of the rotating body or the hub, alone or in combination with the other, may be used to fix a tool for the assembly or disassembly of the hub at a given angular position on the rotating body and/or the hub.

Abstract: This invention provides a pin assembly that is self-lubricating and includes a pin, a pin insert that is received within the pin and a quantity of lubricating agent. The present invention also provides an insert for a pin that may be used in a pin joint that contains an automatic lubrication dispensing mechanism.

Abstract: A socket assembly including a housing having a bore; an insert member disposed in the bore, the insert member defining a socket; and a cap attached to the housing proximate an inlet of the bore and having an opening to receive a connecting member that extends into the socket.

Abstract: A universal joint has a ball retainer having a retainer body made of a structurally rigid material and a relatively soft elastomeric seal bonded to the body at an axial end in a recess so as to wipe lubricant back on the ball that is retained by the body. Cavity plates in a housing of the universal joint partially close off lubricant reservoir recesses to retain lubricant in the reservoirs and act as wear plates that stabilize the centering plate orbiting in the recess. Seals can be provided between the retainer and the ball socket, between the centering plate and the wear plates and between the wear plates and the cavity plates. Passageways connect the center cavity of the housing with the ball sockets through an orifice.

Abstract: An arrangement for cooling or heating of a flange bolt for turbines comprises one or more boreholes, that extend through the bolt, and inlet and outlet pipes that are connected to each end of the borehole. A cooling or heating medium such as air, steam or any other fluid flows through an inlet pipe into and through the borehole thereby cooling or heating the bolt, and exits from the borehole via an outlet pipe. The cooling or heating arrangement enables direct cooling or heating of the bolt itself and ensures stable bolting forces throughout the operation of the turbine. The flange bolts with this arrangement may be applied to gas turbines or steam turbines operated at elevated steam temperatures and pressures.

Abstract: A swivel joint apparatus for supplying utilities to a rotating building rotatable about a central axis has an inner, fixed spindle for securing to a fixed base of the building to extend co-axially with a central axis of rotation of the building, and an outer casing rotatably mounted on the spindle for securing to the rotatable part of the building. The spindle has a series of spaced annular flanges defining a series of annular chambers and at least one ring seal mounted on the peripheral edge of each flange for rotatable sealing engagement with the outer casing so that the casing forms an outer wall of each of the annular chambers. A lower end wall of the spindle has a plurality of ports for connection to fixed utility lines in the base for fluid supply to and from the building, each port connected through the spindle to a respective annular chamber.

Abstract: An improved articulated pin joint for a track chain used on track laying work machines is provided. The articulated pin joint includes a plug positioned in a central cavity of a track pin. The plug includes an axial passage in which a needle can be inserted to inject grease into the central cavity. The invention facilitates replenishing grease in the field without removing the track chain from the track laying work machine.

Abstract: A ball-and-socket joint, preferably for motor vehicles, in which a joint ball formed on a pivot pin is mounted movably in a bearing shell consisting of a plastic, is presented. The bearing shell has recesses accommodating lubricant on its inner jacket surface facing the joint ball and is itself inserted into a housing. According to the present invention, the recesses may be grooves as a structural system with groove sections or depressions of microscopic size extending obliquely in relation to the central longitudinal axis of the ball-and-socket joint. Due to this novel design, a pumping effect is achieved during movements of the joint ball over the groove sections, and this pumping effect draws the lubricant present in the groove sections into the gap between the joint ball and the bearing shell, so that improved lubrication of the ball-and-socket joint compared with the state of the art is guaranteed under all operating conditions.

Abstract: An adjustable clamping mechanism includes a slider block annularly disposed about a rod device within a mechanical press. The mechanism utilizes a press or interference fit connection between the components. During operation, high-pressure oil is injected into the location between the slider block and rod, thereby relieving the press fit and making it possible to have relative movement therebetween. An actuator causes selective linear displacement of the slider block along the longitudinal axis of the stationary rod during the release condition. Once the slider block is repositioned, the high-pressure oil is removed, which reactivates the press fit connection and causes the slider block to once again lock up against the rod and prevent movement therebetween.

Abstract: An improved hydraulic cylinder construction having a feature thereon facilitating operative connection with a service kit to enable a quick and injury free removal thereof from a location whereat the hydraulic cylinder is spring biased in a shock absorber installation, particularly for use in a scraper blade mounting assembly.

Abstract: A hydraulic connector assembly is provided to couple an extension rod to a piston rod in a reciprocating pump. The connector assembly utilizes a single hydraulic ram to provide the compressive connecting force between the two rods. The connector assembly includes a mechanism for mechanically locking the hydraulic ram in place so that loss of hydraulic power does not uncouple the assembly. The piston rod and the connector rod can be coupled and uncoupled without the use of heavy wrenches, hammers, or impact tools.

Abstract: The invention relates to a composite body which is assembled of at least two bodies. The first body is made of a first material and the second body is made of a second material. Each of the two bodies has at least one connecting surface and these connecting surfaces are mutually adjacent. The two connecting bodies are wrung upon each other on at least one connecting surface. The two connecting surfaces are connected to each other by wringing and on at least one of these two surfaces, one or more recesses are provided for an adhesive location or an adhesive gap. An adhesive ensures an additional adhesive connection of the two connecting surfaces at the adhesive location between the two bodies. These recesses of the adhesive locations lie at least essentially in the wringing surface.

Abstract: A device for automatically locking a wheel onto a front end of a balancing machine shaft includes a hollow profiled body provided with a frontal member on which the rim of the wheel to be balanced bears. The profiled body acts as a housing for a slider positioned coaxial to the shaft and extends beyond the bearing member where it presents a threaded portion arranged to receive a ring nut for locking said wheel rim. The housing is intended to be connected to a pressurized fluid source in such a manner that the slider is able to slide between a withdrawn locking position in which the ring nut urges the wheel rim against the bearing member, and an advanced release position in which the ring nut is disengaged from the wheel rim.

Abstract: A holding device for a filter element is disclosed. More particularly, the holding device includes a body having upper and lower surfaces. The lower surface is sized and shaped so as to engage an end of an associated filter element. The holding device also includes a compressible member, which is positioned on the upper surface of the body, and a connecting mechanism for directly and movably connecting the body to a body of at least one other identical holding device.

Abstract: A rigid connection of structural parts of a motor vehicle and a tool and for establishing the connection are provided. The structural parts are fixed together after a coating during their assembly to one another in a simple, joined and effective manner without plastically deforming the respective exterior structural part and damaging the coating in the process and therefore visually impairing the visible side of the structural parts. The two structural parts to be connected are designed as oblong hollow bodies with one structural part having axially spaced radial cross-sectional reductions along the length of the connection in which the other structural part is held on it while forming a releasable plug-type connection and in that the first structural part--starting from the plug-in position. Because of the expansion between the plug-type connection points, during an internal high-pressure deforming, the parts are locked in a form-fitting manner.

Abstract: An apparatus (10) for coupling a cutting tool (12) to a vehicle (14) such as a tractor that permits the cutting tool (12) to pivot to a released position when it contacts an obstruction (38) and that returns the cutting tool (12) to its cutting position at a controlled speed after the cutting tool has cleared the obstruction is disclosed. The coupling apparatus (10) includes a frame (18) pivotally coupled to the vehicle (14) and fixedly coupled with the cutting tool(12) and a rotary actuator (18) for pivoting the frame (16) and the cutting tool (12) between their cutting and released positions at a controlled speed.

Abstract: In order to improve the security and ease of operation of a safety lock, especially for vehicle fuel tanks, comprising a plug (3) with a sealing section (3a) which can be fitted on the aperture of a connector nipple (2), a locking device (5), especially in the form of clamping jaws by means of which the plug (3) fitted on the connector nipple (2) can be releasably secured thereto, an actuating device (7), especially in the form of a push-on sleeve, and a vent (10) to release pressure which is connected to the connector nipple (2) in the region of the sealing section (3a). It is proposed that inside the safety lock (1) be fitted an axially movable piston (8) coupled to a locking component (9), for the actuating device (7).

Abstract: The locking ring includes a body having an axis and a hole along the axis. The body receives a shaft in the hole. The body includes a cavity, a first passageway communicating with the cavity, and a locking mechanism for releasably locking the body to a portion of the shaft disposed in the hole. The locking ring further includes a piston member having a piston head and a piston rod connected to the piston head. The piston head is disposed in the cavity, and the piston rod projects from the cavity in a direction parallel to the axis. The piston member moves relative to the body when pressure is supplied to the cavity via the first passageway.

Abstract: A pneumatic coupling for connecting a driven machine member, such as a gantry type carriage of a measuring machine, to a drive member whereby the driven member is moved along a given axis; the coupling substantially comprising a bracket integral with the driven member and defining two facing wallsperpendicular to the aforementioned axis; and a drive element integral with the drive memberand located between the walls of the bracket via the interposition of respective air padsfitted to the walls via respective spherical supports.

Abstract: A friction clamping apparatus includes: a rod; a plurality of friction clamping units serially connected in the axial direction of the rod, each of the friction clamping units including a radially elastically transformable sleeve and a ram into which the sleeve is fittingly inserted, the rod being fittingly inserted through the respective sleeves of the friction clamping units; and restraint pressure chambers defined by an inner circumferential surfaces of the ram and outer circumferential surfaces of the sleeve respectively, so that an oil pressure is made to act upon the restraint pressure chambers to restrain the rod with the sleeves or the oil pressure is made so as not to act upon the restraint pressure chambers to release the rod from the sleeves.

Abstract: A friction clamping apparatus includes: a rod; a plurality of friction clamping units serially connected in the axial direction of the rod, each of the friction clamping units including a radially elastically transformable sleeve and a ram into which the sleeve is fittingly inserted, the rod being fittingly inserted through the respective sleeves of the friction clamping units; and restraint pressure chambers defined by an inner circumferential surfaces of the ram and outer circumferential surfaces of the sleeve respectively, so that an oil pressure is made to act upon the restraint pressure chambers to restrain the rod with the sleeves or the oil pressure is made so as not to act upon the restraint pressure chambers to release the rod from the sleeves.

Abstract: A rolling apparatus having a width adjustment function includes a horizontal sleeve roll divided into two rolls in the axial direction and shrink-fitted over an arbor. Internal threads are formed in the inner circumference of one of the divided sleeve rolls. The arbor includes fluid passages for loading a fluid under high pressure between the sleeve roll and the arbor. A width-adjusting sleeve is movably mounted over the axial end portion of the arbor and external threads for formed in the inner side portion of the width-adjusting sleeve. The external threads of the width-adjusting sleeve are threadedly engaged with the internal threads of the sleeve roll. A clutch mechanism fixes the width-adjusting sleeve in a fixed position when a roll width adjustment is performed.

Abstract: A ball and socket joint for a vehicle steering control system, which includes an inner ball head received in a ball socket which simultaneously serves as an outer ball head and is received in a casing which has a shank connected to a drag link of a vehicle steering control system. The ball socket has a unitary connecting rod connected to a wheel steering knuckle arm. A holder plate and a spring are respectively set in the casing to support the inner and outer ball heads for free positioning of the inner ball head in the outer ball head so that steering control operation can be more smoothly performed.

Abstract: A hydraulically actuatable shrinking disc, especially for a force transmitting connection of a hub having a cylindrical outer surface with a shaft comprises an inner ring arranged to be located on a cylindrical outer surface of a hub and having a double-conical outer peripheral surface, two pressure rings which are arranged axially opposite to one another in a displaceable and clampable manner on the inner ring and have inner conical surfaces which corresponds to the outer peripheral surface of the inner ring, the pressure rings forming therebetween a pressure chamber for a pressure fluid, the pressure rings being mirror-symmetrical in their cross-section and each formed with a cylindrical outer peripheral surface, the pressure rings being provided with openings which serve as pressure medium passages, a clamping ring which serves as an abutment for the pressure rings and surrounds the latter, the clamping ring having an outer peripheral surface which is provided with a connecting opening for the pressure flu

Abstract: The apparatus transmits a high shifting force reliably and has a simple and rapid assembly. The axial shifting occurs by a clamping device which is in releasable working connection with the roll stub shaft of a rolling-mill roll or the rotating shaft. The disengageable clamping junction is formed between the clamping device and roll stub shaft shaped to fit together. Especially the clamping device is formed as a compact unit comprising a clamping head with at least one axially precompressed compressible spring which acts on a plurality of clamping disks working as a clamping body. The clamping disks force a radially elastic clamping sleeve to grip the roll stub shaft. The clamping disks are releasable from a clamped position by a hydraulic pressurized medium against the action of the compressible spring. The clamping disks are supported axially on the one side on a portion of a housing of the clamping head and on the other side by an axially slidable hollow cylinder acted on by the compressible spring.

Abstract: A spline connection which comprises a spline boss having inward spline teeth; and a spline shaft engaged slidably with the spline boss and having outward spline teeth is disclosed. A header passage for a lubricant is formed along a core of the spline shaft and oil passages are further formed in the spline shaft in such a manner as to pierce therethrough radially from the header passage. At least one of the outward spline teeth of the spline shaft is provided at the top thereof with a groove crossing transversely the outer spline tooth so as to have the open end of the oil passage disposed in the groove.

Abstract: A disengagable coupling comprising a first part (1) affording a bore (3) and a second part (2) comprising a sleeve (5) and a drive flange (6). The sleeve (5) fits in the bore (3) and contains an insert (8) with collars (9,10) between which is defined a chamber (4) for the reception of oil under pressure to expand the sleeve into frictional engagement with the wall of the bore (3) for torque transmission. There may be a pressure release valve response to relative movement between the first and second coupling parts to release the coupling in case of overload.

Abstract: A marine stern drive (10) has an engine output coupler with a coupler hub (56) having an axially splined opening (58) receiving the forward splined end (28) of the output drive shaft (24). The coupler hub has a pair of axial channel passages (60, 62) therein spaced radially outwardly of the splines (58), radial channel passages (64-69) extending radially inwardly from the axial channel passages, and inner circumferential channel passages (70, 72, 74) extending circumferentially around the axial splined opening in the coupler hub and intersecting the splines (59), A grease fitting (76) on the coupler hub communicates with one of the axial channel passages such that grease introduced at the fitting flows through the axial channel passages, through the radial channel passages, and through the circumferential channel passages, to lubricate the splines of the coupler hub and the output drive shaft.

Abstract: A camera supporting tripod is described with a hip to which legs are attached. The legs are adjustable as to length. In addition, the tripod includes a center shaft mounted to the hip for tilting movement. The center shaft is also adjustable as to length. Manually actuated hydraulic mechanisms are provided for releasably holding the legs as to length, for releasably locking the center shaft to the hip to prevent relative tilting, and for releasably holding the shaft at the length to which it is adjusted. An instrument supporting head on the tripod includes friction brake panning and tilting mechanisms designed to apply a variable drag to these motions and also for smooth operation.

Abstract: A rotary actuator for converting a linear reciprocatory movement of a piston into a rotary reciprocatory movement of an output shaft through a connecting member. The rotary actuator includes a cylinder case formed with a pedestal in a position in which the output shaft extends vertically out of the cylinder case. The pedestal is formed with a substantially square elevated portion, and a depressed portion defined by the elevated portion. A plurality of projections spaced apart from each other by a predetermined angle are formed integrally with the pedestal in the depressed portion to constitute dividing lines of a scale for indicating the angle of rotation of the output shaft by means of a pointer.

Abstract: A rapid connector for use between an endoscope and a camera in which a base ring is connectible to a lens mount of the camera and to an ocular cone of the endoscope and comprises a delimiting glass pane with there being an enclosed space between the delimiting glass pane and a glass pane of the endoscope, and in which the enclosed space is placed in communication with a compressed air source via a radial bore in the base ring and a connector tube therein, and with the ambient atmosphere via an oppositely situated radial bore as well as a hole of the base ring.

Abstract: A lubricating spline joint for providing a viscous damping function includes a first member defining an internal spline, a second member defining an external spline engaged therewith, a seal ring between the members at one end of the splines, and a radially inwardly facing chamber at the other end which is exposed to lubrication fluid. The improvement features an internal barrier for assuring a fixed internal radius R and thus a preselected centrifugal pressure head of the fluid mass in the chamber and about the splines, and a plurality of venting passages located radially outwardly of the radius R for continually exhausting fluid from the splines as a result of centrifugal force so that fresh and/or less aerated fluid is circulated through the splines.

Abstract: A stabilizer including a female ring installed on a female tube of the telescopic stand and a male ring installed on a male tube of a telescopic stand. The male ring is put in the female ring and a hole is set on each of two outwardly projecting parallel walls. Inside one of the holes of the female ring is a toothed block which is engageable with another toothed block of a handle so that the tightness and relaxation of the stabilizer is determined by rotating the handle to engage or disengage the two toothed blocks. The male ring further has an opening between the two holes of the male ring in which a spring is set to provide the male ring with a better restoring force.