Abstract: In a conveyance device, first and second travel members that hold pads are arranged alternately and travel along the outer peripheral surface of a stationary drum in conjunction with the rotation of a drive member. One or both of the first and second travel members have a rotatably supported shaft member having an engaging section that engages with a guide section formed in the outer peripheral surface of the stationary drum. The rotation of the shaft member is transmitted to the pads and the pads rotate. When conveyance articles are released from pads that have received conveyance articles having the same orientation, the orientation of conveyance articles released from first pads held by the first travel member is different from the orientation of the conveyance articles released from the second pads held by the second travel member.

Abstract: An apparatus for manufacturing a sleeve for a paper cup and/or a paper cup comprises a machine frame and at least two star wheels, which are rotatably connected with the machine frame and which can be rotated in synchronized cycles. A first star wheel comprises a number of conical mandrels, on each of which one sleeve made of a flat-lying blank can be formed. The star wheels are positioned in one plane and are arranged to a vertical wall of the machine frame with horizontal rotary axes. The star wheels can be connected to at least one drive, whereby the drive is arranged on the side of the machine frame wall facing away from the star wheels.

Abstract: Apparatus for transferring an object from a first station to a second station with a different orientation is provided comprising a stator, a rotor rotatable externally of the stator about an axis of rotation, and at least one retaining member for retaining the object. The retaining member can rotate integrally with the rotor, and is rotatable with respect to the rotor about its own axis of rotation. The stator has a cam profile coupled to and functionally cooperating with at least one axially extending follower which is constrained to the retaining member. The axis of rotation of the retaining member and the axis of extension of the follower are substantially always incident to the axis of rotation of the rotor.

Abstract: The present disclosure is directed to a transfer assembly for transferring discrete articles from or to a moving carrier member. The transfer assembly comprises a frame defining a rotation axis. The frame comprises a track having a circumferential shape surrounding the rotation axis. The transfer assembly comprises transfer members movably engaged with the track, each having a transfer surface. The transfer assembly comprises a wheel engaged with the frame and configured to rotate about the rotation axis. The wheel is engaged with the transfer members. As the wheel rotates about the rotation axis, the transfer members circumnavigate about a path about the rotation axis in correspondence with the track. The shape of the track causes the transfer surfaces to move radially relative to the rotation axis while the transfer surfaces are maintained a substantially constant distance away from the moving carrier member at the point of discrete article transfer.

Abstract: System and methods for providing a transfer of products with the ability to match speed and position, and to change the incoming products from a narrow-edge-leading orientation to broad-edge-leading orientation, and to convey the products to a location to be grouped and transferred.

Abstract: A rotary orienter includes a turret rotatable about a central axis and at least one rotation pad rotatably mounted to the turret and selectively rotatable about a pad axis. The turret rotates to index the rotation pad to a receiving station, a discharge station and at least one actuating station distributed radially about the central axis. The actuating station is intermediate the receiving station and discharge station. The rotation pad indexes from the receiving station in a locked condition such that rotation of the rotation pad is prevented, and is selectively unlocked by the actuating station such that the unlocked rotation pad rotates during indexing of the turret from the actuating station to the discharge station to reorient an object received onto the rotation pad at the receiving station in a received orientation to a predetermined orientation for discharge of the object in the predetermined orientation at the discharge station.

Abstract: The invention relates to a device for treating packaging means, such as bottles, cans or similar containers, comprising a device-internal transport section, on which the treatment of the packaging means is carried out on processing stations (8) in at least two process steps, and further comprising holding and centering elements, by means of which the packaging means (1) are held at least during the respective process step in an orientation on the device-internal transport system necessary for said process step and/or by means of which the packaging means are moved at least during one process step.

Abstract: The invention relates to a revolving treatment machine for treating containers, comprising a rotor element which can be driven to revolve about a vertical machine axis and which is used as a container support or forms a container support. The treatment machine further comprises a support element for at least one functional element of the machine which interacts with the containers, said support element being drivable as to revolve about the vertical machine axis.

Abstract: The invention relates to an article orienting machine for elongate articles, said machine comprising an endless first conveyor by which articles are conveyed with a first predetermined spacing, said elongate articles having their main axes arranged transverse to the direction of movement of said conveyor; at least a first and a second wheel on which the conveyor is supported; a first drive means arranged to rotate one of the wheels on which the conveyor is supported; and opposed pairs of holders attached to said endless conveyor at said first predetermined spacing, each pair of holders being arranged to contact and support an elongate article at opposite ends thereof while the article is received and released by the article orienting machine.

Abstract: The present disclosure is directed to a method of transferring discrete articles from or to a moving carrier member using a transfer assembly. The transfer assembly comprises a frame defining a rotation axis and a transfer member comprising a transfer surface configured to receive one of the discrete articles. The method comprises rotating the transfer member about the rotation axis and maintaining the transfer surface at a substantially constant minimum distance away from the moving carrier member at the point of discrete article transfer.

Abstract: The present disclosure is directed to a method of applying a fluid pressure to a portion of a transfer member of a transfer assembly. The transfer member rotates about a first rotation axis and comprises leading and trailing portions. The portion of the transfer member is rotatable about a second rotation axis between a first position and a second position. The method comprises providing a fluid conduit in fluid communication with the leading or trailing portion of the portion of the transfer member when the portion of the transfer member is in the first position, rotating the portion of transfer member between the first position and the second position, and maintaining the fluid conduit in fluid communication with the same of the leading or trailing portion of the portion of the transfer member after the portion of the transfer member is moved into the second position.

Abstract: The present disclosure is directed to a transfer assembly for transferring discrete articles from or to a moving carrier member. The transfer assembly comprises a frame defining a rotation axis. The frame comprises a track having a circumferential shape surrounding the rotation axis. The transfer assembly comprises transfer members movably engaged with the track, each having a transfer surface. The transfer assembly comprises a wheel engaged with the frame and configured to rotate about the rotation axis. The wheel is engaged with the transfer members. As the wheel rotates about the rotation axis, the transfer members circumnavigate about a path about the rotation axis in correspondence with the track. The shape of the track causes the transfer surfaces to move radially relative to the rotation axis while the transfer surfaces are maintained a substantially constant distance away from the moving carrier member at the point of discrete article transfer.

Abstract: The present disclosure is directed to a transfer assembly for transferring discrete articles from or to a moving carrier member. The transfer assembly comprises a frame defining a rotation axis. The frame comprises a track having a circumferential shape surrounding the rotation axis. The transfer assembly comprises transfer members movably engaged with the track, each having a transfer surface. The transfer assembly comprises a wheel engaged with the frame and configured to rotate about the rotation axis. The wheel is engaged with the transfer members. As the wheel rotates about the rotation axis, the transfer members circumnavigate about a path about the rotation axis in correspondence with the track. The shape of the track causes the transfer surfaces to move radially relative to the rotation axis while the transfer surfaces are maintained a substantially constant distance away from the moving carrier member at the point of discrete article transfer.

Abstract: A passing apparatus for a workpiece associated with an absorbent article receives a first sheet-like workpiece at a receiving position, changes a longitudinal direction of the first sheet-like workpiece to a direction that intersects the longitudinal direction at the time the first sheet-like workpiece is received, and discharges the first sheet-like workpiece with the changed longitudinal direction at a discharge position. The passing apparatus includes: a plurality of holding pads each having a plane section to be in contact with and for holding the first sheet-like workpiece, a revolution mechanism for causing the holding pads to revolve about a revolution axis normal to the plane section, and a spin mechanism for causing the holding pad to spin about a spin axis normal to the plane section. On an orbit of the holding pad determined by the revolution mechanism, the receiving position and the discharge position are set.

Abstract: The present disclosure is directed to a method of applying a fluid pressure to a portion of a transfer member of a transfer assembly. The transfer member rotates about a first rotation axis and comprises leading and trailing portions. The portion of the transfer member is rotatable about a second rotation axis between a first position and a second position. The method comprises providing a fluid conduit in fluid communication with the leading or trailing portion of the portion of the transfer member when the portion of the transfer member is in the first position, rotating the portion of transfer member between the first position and the second position, and maintaining the fluid conduit in fluid communication with the same of the leading or trailing portion of the portion of the transfer member after the portion of the transfer member is moved into the second position.

Abstract: The present disclosure is directed to a method of transferring discrete articles from or to a moving carrier member using a transfer assembly. The transfer assembly comprises a frame defining a rotation axis and a transfer member comprising a transfer surface configured to receive one of the discrete articles. The method comprises rotating the transfer member about the rotation axis and maintaining the transfer surface at a substantially constant minimum distance away from the moving carrier member at the point of discrete article transfer.

Abstract: The present disclosure is directed to a transfer assembly for transferring discrete articles from or to a moving carrier member. The transfer assembly comprises a frame defining a rotation axis. The frame comprises a track having a circumferential shape surrounding the rotation axis. The transfer assembly comprises transfer members movably engaged with the track, each having a transfer surface. The transfer assembly comprises a wheel engaged with the frame and configured to rotate about the rotation axis. The wheel is engaged with the transfer members. As the wheel rotates about the rotation axis, the transfer members circumnavigate about a path about the rotation axis in correspondence with the track. The shape of the track causes the transfer surfaces to move radially relative to the rotation axis while the transfer surfaces are maintained a substantially constant distance away from the moving carrier member at the point of discrete article transfer.

Abstract: An article support is disclosed for movement by a conveyor along a conveying path that has treatment units and turning stations there along. The article support includes a carriage for engagement by a conveyor, and a holder for supporting an article that is rotatably mounted to the carriage. A turning gear is associated with the holder to enable rotation of a supported article about a vertical axis with respect to the carriage. Rotation is effected in response to the article support being moved past a turning station along a conveying path. Indexing means are further operatively arranged between the turning gear and the carriage for indexing at least a first and a second position of incremental rotation. The indexing means include first and second pairs of confronting magnetic elements. The magnetic elements are each positioned in accordance with the relevant first and second incremental rotational positions.

Abstract: A rotating device includes a wind machine, a transmission mechanism, and a vane rotatably mounted to the transmission mechanism. The wind machine is adjacent to the transmission mechanism, used to rotate the vane.

Abstract: An apparatus (1) for unscrambling and aligning bulk plastic containers (2) includes a plurality of pick-up element (3) for picking up containers (2), which are mounted to one or more pull-out turrets (50) of rotary type (4), located at each aperture (5a) the pick-up element (3) being of the type adapted to pull out the container (2) from the pocket (7) at the corresponding aperture (5a) and rotate it neck up; the pull-out action being substantially radial to the position of the container (2) in the ring (7a) of pockets (7). Each pick-up unit (3) has element (14, 40) for adjusting its rotation in a first axis (AA) and its height in one more axis (BB), to change both the pick-up position and the release location according to the type of container (2).

Abstract: An apparatus for transporting a container between stations, for example, from a rotary machine to a conveyor is provided having a rotary apparatus having a plurality of grippers constructed and arranged to receive and retain containers, a mechanism for rotating the grippers by about 90°. For example, the containers can be in a vertical position when received by the grippers and in a horizontal position when released by the grippers. A method for transporting a container between stations is provided. For example, the method can include receiving and retaining containers proximate a rotary machine and rotating the container to by about 90° proximate a conveyor and releasing the container to fall by gravity onto the conveyor.

Abstract: A beverage bottling plant for filling bottles with a liquid beverage material having bottle plate support tables therein. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

Abstract: A device for processing containers with a lip on container support units arranged at regular intervals on a support frame and having at least a container support and a container dish, with the distance from the container support unit to a conveyance plane being changed through variation of the overall height of the container support unit. Also, a method for labeling containers with a support ring, with multiple container support units arranged at regular intervals on the rotating support frame, the container support units having at least a container support and a container dish, with the containers being at least partially clamped between a container support unit and a centering bell during their conveyance through a processing track, and with the distance from a transport plane to the container support unit being varied by changing the overall height of the container support unit according to the size of the containers to be processed.

Abstract: The disclosure relates to an apparatus (10) comprising a turning mechanism which is adapted to change the orientation of a number of packaging containers (12) in motion in a filling machine, from a first orientation (20) to a second orientation (22), comprising a conveyor (26) provided with at least one carrier (28) to which at least one carrier unit is connected. According to the invention, the carrier unit is rotary in relation to the carrier (28) about a geometric axis of rotation and is adapted to carry the packaging container (12) in such a manner that the point of gravity of the packaging container during the change in orientation is substantially located on the geometric axis of rotation, and the point of gravity of the packaging container thereby maintains substantially the same direction and speed from the first to the second orientation (20, 22).

Abstract: A container processing machine (M) with at least one carousel (1, 1?) which defines a multiple-row processing section (2, 2?), processing devices (24, 25) which move concurrently in multiple rows with the carousel, container holding element groups which are attached to sections of a concurrently moving conveyor device (3), holding elements (H), at least within the processing section (2, 2?), that are positioned next to each other transversely to the conveyance direction, and feed and removal systems (Z, A) for the loading and the unloading of the holding elements (H). The feed and removal systems (Z, A) are designed with a single row, while the holding elements (H) of the groups are resettable between a single-row position, in which they are oriented at least approximately parallel to the conveyance direction, and, in the area of the loading and unloading zones (L, E), a position resetting device (U) for the holding elements.

Abstract: A process and a device for picking up, transferring and handling plastic container preforms molded by a special molding machine, wherein gripper pick up and transfers the preforms from the mold or from an ejector to a conveyor device. The preforms are deposited and carried on the conveyor in a standing position. The conveyor device (2) holds the preform in a stable position during handling.

Abstract: A chip transfer apparatus includes a first carrier for feeding chips and a second carrier for carrying works on it. The transfer apparatus also includes a transfer engine including two or more coaxial revolvers, which can revolve coaxially with each other. Each of the coaxial revolvers includes an end-effector for receiving a chip from the first carrier and transferring the received chip onto a work on the second carrier. The end-effectors of the coaxial revolvers are arranged in a circle coaxial with the revolvers. The end-effectors sequentially receive chips from the first carrier at substantially zero speed relative to the first carrier and transfer the received chips onto works on the second carrier at substantially zero speed relative to the second carrier. While the end-effectors are revolving, they undergo periodic speed change control for timing adjustment and speed adjustment for the chip reception and transfer.

Abstract: During assembly of a vehicle door to a vehicle body, a door installation apparatus is mounted to a frame unit, which is movably mounted on a running rail. A synchronous drive unit, controlled by a user via a control panel, includes a drive roller mounted to the frame unit, a roller shift means that selectively contacts the drive roller to the running rail, and a roller drive unit that drives the drive roller such that the frame unit moves along the running rail at a speed equal to that of the vehicle body.

Abstract: A container processing machine (M) with at least one carousel (1, 1?) which defines a multiple-row processing section (2, 2?), processing devices (24, 25) which move concurrently in multiple rows with the carousel, container holding element groups which are attached to sections of a concurrently moving conveyor device (3), holding elements (H), at least within the processing section (2, 2?), that are positioned next to each other transversely to the conveyance direction, and feed and removal systems (Z, A) for the loading and the unloading of the holding elements (H). The feed and removal systems (Z, A) are designed with a single row, while the holding elements (H) of the groups are resettable between a single-row position, in which they are oriented at least approximately parallel to the conveyance direction, and, in the area of the loading and unloading zones (L, E), a position resetting device (U) for the holding elements.

Abstract: A gripper for containers, in particular for bottles, with at least first and second gripper arms (1, 2) which are mounted such that they can pivot and are acted on in the gripping pivoting direction by magnetically interacting permanent magnets, such as permanent magnets which simultaneously repel one another and attract one another are arranged in such a way that the sum of the repelling and attracting forces which act in the gripping pivoting direction on the gripper arms is substantially constant within a predetermined gripping range (d1 to d2) of the gripper which covers different container gripping sizes.

Abstract: The present invention aims to provide an article turning-round apparatus improved so that a series of articles can be successively turned round at a high velocity and there is no restriction imposed on the positions at which the articles are loaded and unloaded.

Abstract: A bottle labeling machine, comprising a rotating carousel provided with a supporting structure for pans on which the bottles rest and comprising input and output star conveyors, the input and output star conveyors being arranged at a fixed elevation, the rotating carousel being provided with means suitable to change the elevation of the pan supporting structure.

Abstract: A carrier for transporting pellet-like objects is disclosed. The carrier has a fixed jaw portion and a movable jaw portion positioned in spaced relation and opposite to the fixed jaw portion. The movable jaw portion is movable between an open and a closed position. When in the closed position, the jaw portions cooperate to grip the pellet-like item. The jaw portions are mounted on a movable conveyor which moves the carriers through a processing station which performs an operation on the pellet-like object while it is gripped by the jaw portions. An actuator extends from the movable jaw portion and is used to actuate the jaw portions into the closed position. A camming surface engages the actuator to close the jaw portions. Parts of the camming surface are sloped so as to gradually close and gradually allow the jaw portions to open.

Abstract: A transfer apparatus 10 includes crank arms 22 each of which is pivotally attached to a driving wheel 21, link levers 23 each of which has its one end pin-linked to the tip of the crank arm 22, and revolving sections 30 each of which is pin-linked to the other end of the link lever 23 and held at a distance from the rotation axis 210 of the driving wheel 21, wherein: the crank arm 22 is provided with a velocity-changing cam roller 223 protruding therefrom at a position spaced apart from the pivot center thereof; the velocity-changing cam roller 223 is guided while being engaged with the velocity-changing cam groove 44 which is formed to be eccentric to the rotation axis 210 of the driving wheel 21, whereby the tip of the crank arm 22 swings during one complete rotation of the driving wheel 21; and, as a result, the angular velocity of the link lever 23 linked to the tip of the crank arm 22 and the revolving section 30 periodically increases/decreases with respect to the angular velocity of the driving wheel 2

Abstract: A device for orienting a number of objects. The device has a holder conveyor with holders for the objects, lifts synchronously co-displaceable with the holders and rotatable relative thereto for lifting the objects out of the holders and rotating the objects into and oriented standing rotational position relative to a standing rotation axis on the holders, a detector for detecting the standing rotational position of each object and a control device for the lifts which is connected to the detector and which activates the lifts for a relevant object as long as is required to rotate the oriented standing rotational position.

Abstract: A workpiece transfer for a decorating machine includes transport conveyors for carrying workpieces to the decorating machine and from the decorating machine. The conveyors support each of the workpieces such that an elongated longitudinal axis of each workpiece is vertically orientated. The decorating machine has a decorator conveyor with spaced workpiece carriers to support a workpiece for rotation about the longitudinal axis of the workpiece in a horizontal orientation. A plurality of workpiece grippers pivotally supported by a drive hub support the workpieces during movement of the longitudinal axis thereof between the vertical orientation and the horizontal orientation. A drive shaft is secured to the drive hub to rotate about an axis forming acute angles with the longitudinal axis of a workpiece in each of the horizontal orientation and the vertical orientation. The acute angles are preferably 45°.

Abstract: A patterning apparatus for advancing packaged baked goods such as loaves of bread, and positioning the packages for precise loading into delivery containers includes an endless conveyor having a horizontally disposed upper flight and a series of turner assemblies spaced along the conveyor. Each turner assembly, when on the upper flight, receives one or more packages, which rest by gravity effect on the turner assembly. The turner assemblies are adapted to rotate the received package in a horizontal plane while also achieving longitudinal conveyance in the direction of motion of the upper flight, and lateral movement transversely to the longitudinal direction.

Abstract: An apparatus for automatically loading socks on forms (1) comprises a suction unit (20) at an inlet, a carousel (10) with several stations (2, 3, 4, 5), a positioning unit (30) of the sock (S), a tucking-up unit (40) and a pick-up robot (50). The carousel has intermediate supports (12) onto which can be put, partially or completely, the socks (S). The carousel (10) brings the intermediate supports (12) through successive stations (2, 3, 4, 5) up to a pick-up station (5), where an arm (52) is connected pivotally (55a) to a carriage sliding on an upright (53). Means are provided for translating (53a) vertically the carriage vertically upwards or downwards, along the upright (53), and for rotating (55a) integrally the arm (52) about said horizontal axis (55). Pick-up fingers (56) are provided at a first end (52b) of said arm (52) associated to means for opening (56a) and closing them.

Abstract: A drum-shaped conveyor rotates about a fixed axis and its core carries a set of angularly distributed sections indexible about axes extending radially of the fixed axis when the core is set in rotary motion. Each section has several parallel flutes for sets of discrete filter cigarettes which are turned end-for-end, as well as moved circumferentially and axially of the core, in response to each revolution of the core. Rotation of successive sections about the respective radial axes takes place at timely spaced intervals and in opposite directions. The conveyor can receive filter cigarettes from a maker and inverts the sets of cigarettes prior to admission of such articles into a packing machine.

Abstract: A vacuum treatment system has a vacuum chamber in which there is at least one part which is driven in rotation and is connected by a gear train which comprises at least two rotating transmission bodies with a motor drive unit. The rotating transmission bodies produce a relative motion in a rolling manner. For this purpose, the bodies have axes of rotation that are not aligned. The rotating transmission bodies are magnetically drive-coupled to each other, and at least one of them is located in the vacuum chamber.

Abstract: A rotary turret has a plurality of rotatable pedestals thereon, each pedestal being controlled by a separate motor. The location of each motor for each pedestal is fixed so that the motors do not change location as the turret rotatesl. There is a separate ring gear for each pedestal, the ring gear being concentrically mounted relative to one another. Each motor is indirectly connected to a different ring gear. As the turret rotates the pedestals rotate independently of the turret and independently of each other. The motors for each pedestal can be wired in a conventional manner.

Abstract: Apparatus (10) for packaging products (P) includes a mechanism (84) for accumulating, metering, and creating an array of products (P) in a pack pattern. The array of products (P) in a conveying orientation is transferred to a tray (36), and the tray (36) and the entire pack pattern of products (P) supported thereon are rotated to a second arrangement where the products (P) in the conveying orientation in the tray (36) are perpendicular to the conveying direction. The products (P) are pushed from the trays (36) moving in the conveying direction into cartons (C) moving at the same speed as the trays (36). In the preferred form, the trays (36) are rotatably mounted to carriers (12) moving along a path defined by roller chains (22). A cam follower (48) on a crank arm (46) extending from a spindle (44) rotatably mounting the tray (36) to the carrier (12) travels in a cam track (50) to rotate the tray (36) relative to the carrier (12) between the first and second arrangements.

Abstract: A vertical conveyor (1) for a palletizing apparatus for stacking products (2), especially books, periodicals or other such printed products on a pallet, including carriers (7) driven by a drive chain (19) on a closed path and guided horizontally by a guiding means (24), in which the carriers (7) have finger-like supports (9) which move vertically through associated open areas (5, 29) of a delivery conveyor (27) and of a stacking apparatus (3) and there pick up and lay down the products (2). The carriers (7) are constructed as a turning device and have four finger-like supports (9) arranged in a cross shape about an axis of rotation (8), which can be rotated about the axis of rotation (8) in steps of 90° in the horizontal plane, and the open areas (5, 29) of the delivery conveyor, which are associated with the finger-like supports (9) of the carriers (7) and the stacking apparatus, are arranged in a cross shape.

Abstract: An applicator to apply a label (11) to an object such as a container (12). Each label (11) is applied by a label applicator (68). More particularly, the apparatus (10) is adapted to apply labels (11) irrespective of whether the container (12) is of circular or non-circular configuration. The container (12) is mounted on a holding plate (23) which is caused to rotate so that the peripheral speed of the container (12) is substantially constant.

Abstract: A plurality of bag making machines 2a and 2b for continuously producing irregular-formed vessels 1 having a flanged mouth plug, a plurality of transportation troughs 11a and 11b connected to the respective plurality of bag making machines 2a and 2b, a single-row transportation trough 4 for combining into a single row and transporting the irregular-formed vessels 1 fed from the respective transportation troughs 11a and 11b, and a plurality of relay movable troughs 15a and 15b capable of containing a predetermined amount of irregular-formed vessel from the corresponding transportation trough, and discharging the contained irregular-formed vessels to the single-row transportation trough are provided, a transportation disk 8 continuously rotating in a horizontal direction for taking up the mouth plug flange part from the tip of the transportation trough 4 and feeding the mouth-plugged irregular-formed vessel 1 to a continuously rotating rotary filling apparatus C is provided, the transportation disk 8 having an

Abstract: A semiconductor wafer pod payload platform is operable for rotation in response to linear movement of the platform by a cam assembly having rollers adapted to engage a cam surface. The payload platform is rotatably attached to a shuttle platform adapted for movement along linear rails. The shuttle platform is supported by shuttle glides adapted to move along the linear rails. A cam follower assembly is connected to the payload platform through a shaft extending through the shuttle platform and operable to rotate the payload platform. A cam surface substantially parallel to the linear rails is adapted to engage rollers on the cam follower assembly. Linear movement of the shuttle platform causes the rollers on the cam follower assembly to engage the cam surface and dispose the cam follower assembly so as to rotate the payload platform via rotation of the shaft.