Abstract: A breech-loading neutron gun providing neutrons to stimulate the release of energy from nuclear materials in a containment vessel in a regulated fashion includes a chamber among a plurality of chambers located in a breech where one or more of the plurality of chambers are configured and arranged to load with a neutron source, and a mechanism for controllably moving the breech or the chamber relative to an access cavity of the containment vessel and exposing the nuclear materials to neutrons from the chamber when the chamber containing the neutron source aligns with the access cavity.

Abstract: A motion control apparatus in the form of a sealed rotary table (10) includes a first annular seal (54) located between a bearing cap (48) of a case and an inner diameter of a cylindrical flange (60), and a second annular seal (56) located between a seal ledge (22) of an annular wall (18) of the case and the outer diameter of the cylindrical flange (60). An enclosure (24), the annular wall (18) and a planar annular disc (16) are integrally formed as a single piece part of homogenous material. A drive station (12) includes a rotor (110) rotatably mounted inside an annular sleeve (118) by a bearing (140) inside an annular end cap (136) at an axial extent less than that of the annular sleeve (118). An encoder (150) is located within the annular end cap (136) and within the axial extent of the annular sleeve (118).

Abstract: It is an object of the invention to provide a new push bar type of index apparatus which can hold and machine the work exactly while the machining center machines the work having a predetermined length even if the work is long. An index apparatus comprises first and second index tables 4a and 4b configured to hold a work 1. The apparatus comprises a push bar transmission mechanism configured to rotate the first index table 4a in response to the movement of the push bar 7. The work 1 and the second index table 4b are rotated by the rotation of the first index table 4a integrally so as to index the work 1.

Abstract: A tool revolver unit for a machine tool for machining workpieces has a housing (1) and a tool drive rotatable relative to the housing about an axis (3), has a rotary drive (13, 15) for a rotational motion of the tool disk, and has another rotary drive (19, 23). The other rotary drive (19, 23) is a servomotor for controlling a locking device (5, 31, 37) enabling a releasable rotary lock between the housing (3) and the tool disk.

Abstract: In a rotary index device for a machine tool, in which the index position of, for example, a circular table is maintained by normally clamping a clamp disc with a clamping mechanism and in which, for example, the circular table is unclamped by an unclamping mechanism when an indexing operation is performed, the clamping mechanism includes a fixing portion, a resiliently deformable supporting portion, and an urging mechanism. The fixing portion is fixed to a housing of the rotary index device for the machine tool. One end of the supporting portion is secured to the fixing portion, and a pressing portion having a face that opposes the clamp disc is secured to the other end of the supporting member. The urging mechanism normally urges the supporting portion towards the clamp disc to realize a state in which the clamp disc is pressed by the pressing portion.

Abstract: When a finishing operation is performed while rotating a workpiece at a main shaft drive of a machine tool, pulsation occurring in a rotation of the main shaft drive is restricted and the rigidity of a main shaft is increased without increasing the size of a bearing. A rotation-resistance device of a main shaft drive in a machine tool has the following structure in the main shaft drive including a main shaft 4, a rotating body 65, and a driving device 6, the main shaft 4 being supported so as to be rotatable with respect to a frame body 2, the rotating body 65 being secured to an end of the main shaft 4, the driving device 6 rotationally driving the rotating body (65).

Abstract: Disclosed are a tool indexer assembly, a computer numerically controlled machine that includes such tool indexer assembly, and associated methods. The assembly in one embodiment includes a turret and an indexer, the indexer including a portion that is movable with respect to the turret and that includes plural tool station configured to receive plural tool structures. The tool indexer is disposed on a facet of the turret, and, in some embodiments includes a table that is rotatable about an axis that is generally orthogonal to the axis of rotation of the turret. In another embodiment, a tool indexer includes a clamping mechanism having a source of pressurized fluid and a piston that is hydraulically actuated by the pressurized fluid and movable to a clamping position. The assembly further includes a conduit for delivery of the pressurized fluid proximal the tool structure as coolant fluid.

Abstract: A system (22) for orienting an object (28) relative to a base (24) to which the object (28) is rotatably coupled includes a braking surface (46) in fixed relation with the base (24). A brake (48) is engaged with the braking surface (46). A linear actuator (82) has a body (86) in fixed attachment with the object (28) via a strap member (84) and a coupling element (80). The linear actuator (82) also includes a rod (88) in fixed communication with the brake (48) through an elongate member (90) that flexes in response to a braking force (66) imposed on the braking surface (46) by the brake (48). The linear actuator is activated to generate linear motion (120) of the rod (88). The linear motion (120) of the rod (88) causes rotational motion (122) of the object (28). The strap member (84) is enabled to flex as the object (28) rotates.

Abstract: An indexing tool turret assembly is disclosed including a rotatable indexable turret tooling plate having mounted thereon stationary as well as live tooling. A single drive motor is utilized in order to perform indexing as well as to drive the live tooling. A plurality of live tools can be simultaneously mounted on the turret tooling plate and the single drive motor is selectively engageable with each of the live tools so that only one of the plurality of live tools is driven at a given time. The selective live tool drive train includes an axially movable drive shaft and bevel drive gear for selectively engaging the driven bevel gear of the desired live tool. The axially movable shaft assembly includes a mechanism for adjusting the backlash between the driving and driven bevel gears when these gears are engaged with one another.

Abstract: A rotary compressor includes a rotor rotatably disposed to be eccentric to an inner peripheral surface of a housing, a rotation shaft for transmitting rotation force of an engine to the rotor, and a connection member through which the rotation shaft is connected to the rotor so that the rotation force is transmitted from the rotation shaft to the rotor. When a rotation speed of the rotation shaft is lower than a predetermined valve, the connection member is connected to the rotation shafts at the rotation force of the rotation shaft that is transmitted to the rotor. On the other hand, when the rotation speed of the rotation shaft is equal to or higher than the predetermined value, the rotation force from the rotation shaft to the rotor is interrupted, so that the rotary compressor is stopped. Therefore, useless load applied to the engine can be restricted.

Abstract: A pressing device for an apparatus for imparting a friction resistance to a rotary shaft driving an engine-output control device directly or indirectly to apply a resistance to an operation of an accelerator. The pressing device is a molded product made of a resinous material whose flexural strength is 50 MPa or higher and flexural modulus of elasticity is 3,300 MPa or higher. When a friction plate is formed compositely with a plate-shaped member to form the pressing device, friction plate is formed of a fluorocarbon resin; and at least one ingredient selected from a whisker whose Mohs hardness is 5 or less, a carbon fiber, and a hard resinous powder.

Abstract: An indexing device and method is provided to selectively orient work pieces at predetermined angular positions and hold the work pieces at those positions. The indexing device has a rotary member rotatably coupled to a support and a trigger pivotally coupled to the support. The rotary member holds a fixture and has a plurality of index pins extending from the rotary member at equally spaced about the axis of rotation. The trigger operates a stop assembly to engage holes in the rotary member to position the working holding fixture at the desired position. The indexing device is constructed such that the trigger and one of the index pins can be simultaneously contacted by a control member. The trigger includes an elongated contact surface along which the control member translates to contact the index pins and rotate the rotary member.

Abstract: An indexing tool turret assembly is disclosed including a rotatable indexable turret tooling plate having mounted thereon stationary as well as live tooling. A single drive motor is utilized in order to perform indexing as well as to drive the live tooling. A plurality of live tools can be simultaneously mounted on the turret tooling plate and the single drive motor is selectively engageable with each of the live tools so that only one of the plurality of live tools is driven at a given time. The selective live tool drive train includes an axially movable drive shaft and bevel drive gear for selectively engaging the driven bevel gear of the desired live tool. The axially movable shaft assembly includes a mechanism for adjusting the backlash between the driving and driven bevel gears when these gears are engaged with one another.

Abstract: An indexing apparatus for indexing an article about an axis. The indexing apparatus is adapted to be removably attached to the article and is constructed to axially displace the article along the axis to a disengaged position upon the initial application of a rotary force to an indexing assembly housed within the indexing apparatus. When in the disengaged position, the article can be selectively rotated about the axis by the further application of rotary force to the indexing assembly so that the article may be positioned in a predetermined angular position. The indexing apparatus further includes locking pins for locking the article in a plurality of predetermined angular positions when the application of rotational force to the indexing assembly is discontinued.

Abstract: An indexable workholding apparatus. The apparatus has a column member with at least one pair of workholding jaws operably attached thereto. The column member is rotatably and axially supported on a shaft member that is operably attached to an indexing assembly. The indexing assembly is constructed to axially displace the column along a longitudinal axis to a disengaged position upon the initial application of a rotary force to the shaft member. When in the disengaged position, the column can be selectively rotated about the axis by the further application of rotary force to the shaft member so that the column may be positioned in a predetermined angular position. A damping apparatus is attached to the shaft member and column for damping the return axial and rotary motion of the column and shaft member when the application of rotary force is discontinued.

Abstract: An indexing apparatus for indexing an article about an axis. The indexing apparatus is adapted to be removably attached to the article and is constructed to axially displace the article along the axis to a disengaged position upon the initial application of a rotary force to an indexing assembly housed within the indexing apparatus. When in the disengaged position, the article can be selectively rotated about the axis by the further application of rotary force to the indexing assembly so that the article may be positioned in a predetermined angular position. The indexing apparatus further includes a device for locking the article in a plurality of predetermined angular positions when the application of rotational force to the indexing assembly is discontinued.

Abstract: A rotating device possesses a fixed portion and a movable portion equipped with a rotary shaft, and is equipped with a rotor that can be fastened in an integrated manner to the rotary shaft via a fastening device. Said rotating device is composed of a driving device which directly rotates the rotary shaft, a fluid bearing device which reduces the friction between the fixed portion and the movable portion, a disk provided on the movable portion which is elastically deformable in the direction of thrust, a clamping device provided on the fixed portion which stops the rotation of a turntable by clamping the disk, a positioning jig which makes fine changes in the position of the rotor in the radial direction with respect to the rotary shaft, and a monitoring device which monitors the status of rotation of the rotor.

Abstract: A combustion cleaning machine for removing coatings on the interior of combustion chambers for jet engines is provided and includes a rotatable turntable for carrying a plurality of the generally cylindrical combustors to and from at least one work station where a fluid, liquid or mixture is projected at a combustor under high pressure to remove the interior coating.The machine includes a revolvable main turntable or wheel having a plurality of individual minor turntables for supporting the combustor cylinders and rotating them. A computer or microprocessing control means is provided for monitoring and controlling various machine functions including the means for indexing the main turntable, the means for rotating the individual turntables and the combustors mounted thereunder, and the means for directing or spraying the material at the cylinders.

Abstract: Angular regions (A, B) for turning a trunk body (12) of an industrial robot can be changed in accordance with an operation of the industrial robot by setting movable stoppers (18, 20). Turning movement can be stopped by an electrical means (LS1, LS2, LS3, LS4, LS5) to protect a drive motor and a drive mechanism, just before a stopper (22) fixed on the trunk body collides with mechanical stoppers (14, 16, 18, 20). An accident based on an error operation of the movable stoppers can be prevented by disposing proximity detectors (PS1, PS2, PS3, PS4).

Abstract: A rotary indexing mechanism for indexing a shaft or shaft mounted member in precise rotary increments and with precise end-of-movement positioning includes a reciprocable rack and pinion mechanism coupled to a rotatably mounted shaft. The pinion is coupled to the shaft through a one-way clutch so that movement of the rack in a first direction is coupled through the clutch to cause a corresponding rotation of the shaft with the clutch uncoupling the shaft during movement of the rack in the opposite direction. A first stop member(s) is carried by the shaft for movement along a path that orbits the shaft axis. A second stop member is carried by the rack along a linear path that intersects the orbit of the first stop member. As the rack rotates the shaft through a rotary increment, the rack-carried second member is positioned in the orbit of the first stop member with the two members engaging to halt further rotary movement.

Abstract: In a device for indexing a work attached to a cutting device of a machine center, the device for indexing comprises an indexing plate connected to a driving shaft of an indexing table and held by a stopper on the normal position on a base, a push bar interlocking operatively with an extra action other than the normal action of a tool to move linearly relative to the base, an actuating member for rotating the indexing plate by engaging the push bar operatively. The device is so constructed to disengage a stoppage of the indexing plate by the stopper and rotate the indexing at fixed angles with the aid of the actuating member when indexing a work.

Abstract: The combination of an index table journaled upon a support upon a vertical axis and a computer controlled hydraulic drive including a hydraulic motor connected to the index table. A manifold is mounted upon the support and has a pressurized hydraulic chamber with a hydraulic accumulator mounted upon the manifold in communication with its chamber. A hydraulic power supply is connected to the manifold for pressurizing the accumulator at a pre-set level. An electro-hydraulic proportional valve having a power connector and a hydraulic directional control valve has an intake connected to the accumulator and a pair of outlet feed conduits connected to the hydraulic motor for selectively receiving pressurized hydraulic fluid from the proportional valve for feeding the motor at a predetermined flow, rate and duration for controlled rotational speed, acceleration and duration of incremental rotation of the motor and index table.

Abstract: An index head provided with a long rack and a short rack which are slided alternatively towards an index table by the movement of a pinion of a piston rod. The long rack which is characterized to move at a speed twice a forwarding speed of the piston rod, gives to the index table a revolution corresponding to desired divisions. Immediately upon the completion of said revolution of the index table, the short rack which becomes then movable at a speed twice the forwarding speed of the piston rod, brings about, in cooperation of the rotary movement of the pinion, the engagement of the piston rod with the index table, whereby inertia given to the index table through its revolution by the long rack is prevented so as to attain accurate divisions.

Abstract: A workpiece indexing assembly which causes incremental rotation of a turntable from one work station position to another being actuated by a linearly translating driver. The mechanism includes an indexing hub having a number of radially spaced notches, a one-way clutch dog, a locking pawl and a driving dog. Upon retraction of the driver the driving dog becomes disengaged from one notch and is rotated until engagement occurs with another notch. Retraction also causes disengagement of the locking pawl. Rotation of the table is prevented during retraction by the one-way clutch. Upon extension of the actuator, the one-way clutch allows rotation. When the next work station position is reached, the locking pawl and the one-way clutch are reseated into hub notches. The driver is connected to the driving dog by a link featuring overcenter travel to insure firm locking of the turntable at a work station position.

Abstract: A drive mechanism for the assembly table of an electrical component insertion machine having a motor driven roller engaging the peripheral edge of a disc on the table. A latch mechanism is located on the table for engaging a latch block on the table disc, the latch mechanism being releasable in response to a program control to permit the table disc to rotate and at the same time energize the motor driven roller to rotate the table disc. The disc can be rotated in either direction.

Abstract: A rotatable member to be indexed in a machine is intermittently rotated through specific angular displacements between predesignated indexing positions by an indexing mechanism driven by a hydraulic motor and is positively locked in each indexing position by a positive clutch coupling comprising a movable plate fixed to the rotatable member and a mating stationary plate fixed to a stationary part of the machine, the clutch coupling being engaged and disengaged by a hydraulic cylinder. The hydraulic motor and hydraulic cylinder are controllably and coordinately operated by a common hydraulic system including pipe and tank lines and at least one electromagnetic changeover valve of the two-position, four-connection type.

Abstract: In an indexing system for a member such as a turret head of a lathe, in which the member after undergoing an indexing movement is locked by a locking bolt thrust by spring force into a bolt hole in a plate coaxially fixed to the member, a hydraulic cylinder is used to exert a great force for holding the locking bolt positively and unmovably in each bolt hole against any reactive counter force from the side of the member due to a great load. The hydraulic cylinder is controllably actuated by a single hydraulic system containing also a hydraulic motor for driving the member in its indexing movement and a solenoid valve.

Abstract: An indexable machine tool turret comprising a body having a chamber, an opened end, a closed end and a central longitudinal axis; an axially displaceable rotatable turret top plate having a number of angularly spaced apertures for holding tools, said top plate being co-axial with said body axis; an axially displaceable and extending rotatable shaft connected to said top plate, said shaft co-axial with said top plate; two opposed annular face gears for seating said top plate to said body, said gears co-axial with and concentric with said top plate, one of said gears mounted in said top plate for engaging said other gear, said other gear mounted in said body; said shaft including a ring gear mounted concentrically thereto; means for displacing said shaft and thereby said top plate for causing said face gears to engage and disengage; drive means for engaging said ring gear for rotating said shaft when said face gears are disengaged; cushioned stopping means for stopping said shaft rotation; and, angular rotation

Abstract: Provided is a rotary indexing table comprising a circular plate having a peripheral race mounted to a base. A notched Geneva disk is provided with a plurality of cam followers which ride in the plate race. Between the plate and the disk is a dual slotted slide capable of periodically engaging at least one and preferably two of said cam followers to provide work station locking. Rotary means is also provided which bears a crescent shaped second cam follower lock and also a needle bearing cam follower member which is slidable in a second slot in said slide, said needle bearing cam follower sequentially engages and disengages said notches to effect Geneva disk rotation and also causes slide translation.

Abstract: An adjustable intermittent incremental advance system is provided having a rotatable shaft for driving a work take-off in a start-stop rotary incremental advance. A clutch disk and brake disk alternately permit or stop rotary motion of the shaft to provide the intermittent advance. A flywheel is attached to the rotary shaft and acts through a crank arm driven by a motor to provide rotary power to the shaft for predetermined incremental movement. First and second sensors provide timed application of the clutch and brake disks to provide accurate incremental advance and prevent accumulated error in length of advance during prescribed periods of operation of the system.

Abstract: In processing apparatus, especially fruit processing machinery, incorporating two functional subassemblies with movements which are synchronous with respect to one another, there is provided a fail safe indexing mechanism which prevents operation of one or the other of such subassemblies should for any reasons apparatus operational sequencing or synchronization be interrupted. The fail safe means utilizes a ratchet having a locking means to prevent over-travel thereof. In addition, a signalling means is associated with the locking means which allows operation of one subassembly only during a limited period of each machine cycle, provided all assemblies and sub-assemblies are in their normal location for that period of the timing cycle.

Abstract: A rotatable turret for bringing any selected one of a plurality of tool holders into operative position relative to a workpiece, is characterized in that the turret can be rotated in either direction so that it need follow only the shortest path between the location of the old tool holder and the location of the new tool holder when changing from tool to tool. For this purpose, the turret has a rotatable hub with a plurality of blocks on its periphery slidable relative thereto in directions parallel to the axis of rotation, into and out of slots on a fixed member, the location of the slots corresponding to the operative locations of the tool holders. The blocks are all secured to the keeper ring of an annular electromagnet, whose strength is sufficient to retain the keeper ring attracted when the blocks are out of the slots, but whose strength is insufficient to retain the keeper ring when the blocks are in the slots.

Abstract: In an apparatus for manipulating workpieces in an electron beam drilling machine, workpieces are mounted on rotatable disks which in turn are mounted on a housing which is rotatable and translatable. Each disk, as a fixture holding the workpiece, is unlocked, rotated, and locked in a new position by the motion of a single driving member and associated elements. The single driving members associated with each workpiece indexing assembly are driven through a system of gears from a single central shaft which passes through the vacuum chamber wall to externally mounted actuators and controls.

Abstract: A high torque reversible stepping actuator for valves can drive in small increments in response to fluid pressue pulses. The stepping actuator has oppositely facing ratchet wheels on a common shaft linked to the stepping actuator output. A pair of operator means can drive the ratchet wheels in opposite directions. Each operator means comprises a fluid pressure actuator connected to a drive pawl for driving one of the ratchet wheels in one direction. A pair of locking pawls normally engage the ratchet wheels preventing rotation in either direction. The fluid pressure actuator disengages one of the locking pawls sequentially before engaging the drive pawl with the ratchet wheel, thereby permitting advance of the ratchet wheel. The other locking pawl remains engaged and prevents back drive of the ratchet wheels and stepping actuator due to elastic deformation of the drive train connecting the ratchet wheel with the valve or other mechanism being driven.

Abstract: An indexing apparatus operated by a unidirectionally rotating drive shaft. The drive shaft and a driven member are rotatingly supported by a base in a spaced apart manner. An interconnecting link extends between the drive shaft and the driven member and is pivotally pinned in an offset manner at a first end to the drive shaft. A second end of the interconnecting link is pivotally pinned in an offset manner to the driven member. When the drive shaft rotates it oscillates the driven member in opposite first and second directions through an arc. A releasable engaging device carried by the driven member releasably engages an index member rotatably carried by the base.

Abstract: The invention pertains to rotary volumetric apparatus comprising a stationary framework and a rotary assembly mounted thereon. The rotary assembly includes a rotary shaft. The apparatus further includes a reciprocating drive engine and a driven member connected to the rotary shaft. A linkage system drivingly connects the driven member to the engine for rotation in a first direction upon reciprocating movement of the engine in a first directional mode and for rotation in a second direction opposite the first direction upon reciprocating movement of the engine in a second directional mode opposite the first mode. A clutch interconnects the driven member and the shaft and is operative upon rotation of the driven member in the first direction to cause rotation of the shaft therewith, and upon rotation of the driven member in the second direction, to permit relative rotation between the driven member and the shaft, whereby the shaft is rotated by the drive engine in temporally spaced increments.

Abstract: An indexing drive apparatus comprises a cam assembly connected to a drive source, a cam follower turret adapted to follow the rotation of the cam assembly to be swung, a turret shaft having the turret assembly fixedly mounted thereon and adapted to be rotated in an oscilatory manner in correspondence to the swinging movement of the turret, an output shaft extending in parallel with the turret, and interlocking unit for operatively connecting the turret shaft and the output shaft. The interlocking unit includes a first swing arm secured to the turret shaft, a slide member supported in the first arm slidably in the axial direction thereof, a second swing arm secured to the output shaft, a connecting member pivotally connecting the slide member to the second swing arm, and adjusting means provided in association with the slide member for varying the ratio of a swing angle of the second swing member to that of the first swing arm by adjusting the position of the slide member relative to the first arm.

Abstract: An automatic turret for a lathe and the like comprises a fixed base, a control screw mounted to be rotatable and axially non-displaceable, a nut connected to a tool-carrying body, two basic toothed crowns and at least one latch for arresting the tool-carrying body.

Abstract: An indexing rotary actuator for applying the torque of a rotatable pivot arm to rotate a member between plural index positions. The forward stroke of the pivot arm drives a slider crank linkage through a four bar linkage to unlock the rotatable member and rotate the member to its next index position. On the return stroke of the pivot arm a spring biased locking arm on the rotatable member is interlocked with the actuator to lock the rotatable member in the index position. Interlock switches are provided to indicate when a rotated member is in a valid index position.

Abstract: The improved locking means includes a pair of shaft mounted gears that are in mesh with the thread on the exterior of the feed screw mounted in the housing of a positive feed drill. On the opposite ends of the shafts are mounted gears which rotate with the shafts. When the drill tool holder is not to be advanced, the gears and shafts rotate as the feed screw is being rotated and thus do not cause axial movement of the feed screw as the feed screw rotates. A rack gear is located in the housing adjacent the spur gears. A pressure actuated piston is provided to move the rack gear into engagement with the spur gears to lock the spur gears and shafts against rotation. When this occurs, the gears in mesh with the thread on the feed screw act as a fulcrum so that the feed screw and tool holder are moved axially as the feed screw rotates.

Abstract: An indexing mechanism for the rotatable element of a machine tool wherein a shaft is coaxial with the element and has formed thereon a helicoidal groove. A control member is engaged in said groove and moves alternately therein to transmit an oscillating rotative movement to the shaft to effect go-and-back movements along the groove in a direction parallel to the axis of rotation of the rotatable element. A control cam effects go-and-back movements which are synchronized with the movements of the control member. A driving member is mounted on the shaft for rotation therewith and is capable also of axial movement between one position in which it is rigid with the element and a second non-rigid position. The axial movement of the driving member is controlled by the cam. Accordingly, during the go movements of the control member and of the cam, the driving member is rigid with the element.

Abstract: Disclosed is an auxiliary mechanism for rapidly imparting rotational energy to electrical switch components. An insulator connects an electrical switch component to an output shaft mounted for rotation in the mechanism housing. A lever arm assembly is mounted on the shaft and a link member is pivotably connected between the lever arm assembly and a first arm extending from a bellcrank member. The bellcrank member is mounted for rotation in the housing and has a second arm that is operably connected to one or more solenoids. Initially the link member and first arm are in an overcenter toggle position so that the insulator cannot be accidentally rotated. Energization of the solenoid causes rapid rotation of the insulator because the mechanical advantage of the system in such that maximum force is applied initially.

Abstract: A control shaft extends through and is rotatable in a housing parallel to a stub shaft therein which has one end extending through one wall thereof. Within the housing are four bevel gears, one being keyed or fixed to the control shaft, a second rotatable on and relative to the control shaft, and the remaining two meshing with the first and second ones and carried on a block that is rotatable on and relative to the control shaft. The second bevel gear is keyed to the larger of a pair of meshing spur gears, such larger gear being rotatable relative to the control shaft and the smaller spur gear being fixed to the stub shaft. Respective discs are fixed on the adjacent ends of the two shafts, and articulated holding devices are operable to alternately hold and release the discs.

Abstract: An apparatus is disclosed herein for driving and selectively stopping a platform at predetermined work stations which includes a frame rotatably supporting the platform and a index wheel coupled to the platform in fixed relationship therewith. A drive wheel of lesser diameter is offset from the index wheel so as to overlap edge portions thereof and further includes a pin carried on its edge portion slidably engageable with one of a plurality of slots provided in the edge marginal region of the index wheel. The drive wheel is powered so that the pin enters and leaves each slot in a driving relationship whereby the index wheel and the platform are rotatably moved thereby. A spring biased dog operated by a cam mechanism selectively engages with the index wheel to register the platform at each of the respective work stations.

Abstract: A rotary index table wherein a detent oscillating about the table axis of rotation is translated radially inwardly during indexing and retracted radially outwardly during the return stroke of the detent, both actions being accomplished through a positive acting toggle link arrangement. The positive detent engagement with the table during indexing prevents table overtravel, and a locking detent is utilized to produce final table orientation. The table also includes expansible chamber motor means axially translating the table into a frictional locking engagement with its base.

Abstract: A horizontal shaft, to one end of which there is affixed a tool-carrying turret, is rotatably mounted in a part of the frame of the lathe. The above shaft is parallel to the axis of the spindle of the lathe, such spindle being rotatably mounted in the head stock. The shaft and the turret are reciprocated longitudinally of the axis of the shaft by a longitudinal advancing mechanism, such shaft also being rotated in steps, that is, indexed around its axis by a transverse feeding mechanism.

Abstract: A pair of turrets of a punch press are rotatably coupled to a common drive shaft by chains and sprockets. Releasable couplers are placed between the chains and the drive shaft to allow relative, limited movement between the turrets and the common drive shaft during the insertion into the turrets of alignment shot pins. The limited relative movement allows the turrets to independently, accurately position during insertion of the shot pins without placing strain on the chains, drive shaft or power source.