Abstract: A robot includes a gripping section and a main body section to which the pair of finger sections are attached, having one end sections of the pair of finger sections rotatably connected to each other around a first rotating shaft disposed at a position separate from the main body section, and adapted to open and close the pair of finger sections by swinging the other side of the pair of finger sections on a plane parallel to a mounting surface on which an object is mounted centered on the first rotating shaft to thereby grip the object, a moving device adapted to relatively move the object and the gripping section, and a control device adapted to control the moving device to move the gripping section relatively toward the object, and grip the object with the gripping section at at least three contact points.

Abstract: A spring reaction force converting apparatus has first and second members arranged to be in parallel with and opposed to each other and to be capable of being moved toward and apart from each other, a spring element arranged to be extended between the first and second members in parallel thereto, a link mechanism holding the spring element between the first and second members such that the spring element is capable of being expanded and contracted, the link mechanism being connected to the first and second members; a stopper member maintaining the spring element held by the link mechanism in a condition in which the spring element is compressed by a predetermined amount in an initial condition, and an arrangement thereof in which a reaction force of the spring element is converted to a different type of force transmitted to the first and second members through the link mechanism.

Abstract: A toggle press is provided with two levers (14, 16) which are pivotably connected by means of a joint (18), the first of which (14) is connected at its free end to a pressing tool (22) and the second of which (16) is rotation-resistantly mounted at its free end on a shaft (28) which can be rotated by a drive unit. The rotation-resistant connection between the second lever (16) and shaft (28) is releasable when the toggle lever reaches the extended position. The second lever (16) is disposed on a section of shaft (28) contrived as an eccentric cam (44).

Abstract: A side-by-side robot workcell includes two tables each of which is movable from a work position to a load position. Linkages are connected to the tables and cause the tables to have a slow speed at the time the tables approach either the load or the work position, and a faster speed in the middle of the movement between the work and load positions.

Abstract: In machines for opening of a tapping hole, for example in tapping hole boring machines, carriage holder (4) with boring bar and boring machine is swung up via four-bar linkage (5) by a lifting cylinder (10) out of an optionally obliquely sloped working or boring position into a neutral position out of the area of a runner. The boring angle is adjustable on connecting rod (7) of four-bar linkage (5). To securely keep the lifting device for automatic changing of the boring bar always in the horizontal neutral position, piston rod (11) of lifting cylinder (10) is linked to the free end of angle lever (13) which is pivoted around axis (16) located stationary on lifting frame (8). The angle lever is hinged via link plate (14) to upper short lever arm (15) of lifting arm (6). Link plate (14) with short lever arm (15) and angle lever (13) in the horizontal neutral position of the lifting device forms self-locking knee link (18).

Abstract: A device with a pivoting work arm for carrying and positioning a tool which is moved by a modified Watts linkage powered by a linear actuator is provided with shock absorption adjacent both the fully extended and fully retracted work arm positions. The modified Watts linkage engages a pawl which rotates a lever arm in the same direction to actuate the same shock absorber(s) when the work arm is moved to both its fully extended and fully retracted positions.

Abstract: A hand lever apparatus (throttle lever) (10) is provided which has an automatic restoring function (automatic idle rotation opening position restoring function) to cope with an accident and which can perform normal operation lightly and swiftly. The hand lever apparatus (10) has a rotationally operable operating lever (30) and a toggle mechanism (T). The operating lever (30) is operated to actuate, through the toggle mechanism (T), a cable (20) connected to a driven member (CV) so as to pull the cable (20).

Abstract: A transfer device includes a transfer tool which is activated by a rectilinear guide, i.e. by a mechanism made such that a point of attachment of the transfer tool describes a rectilinear trajectory when the guide is activated. A drive element for activating the guide is provided with non-rectilinear motion, and in particular with angular motion. Preferably, the rectilinear guide consists of an articulated oscillating linkage. The transfer device is used in a packaging machine for cigarettes or the like, in which, whenever possible, for each transfer of product into the processing path of the machine, rectilinear transfer units for the products are used, which transfer units are actuated by transfer devices activated by articulated oscillating linkages.

Abstract: A retraction mechanism is disclosed for retracting and engaging the pumping mechanism assembly of an infusion pump with an infusate flow path. The retraction mechanism provides a linkage which converts rotary motion of a handle about an axis to linear motion along a line parallel to the axis. The linkage is connected to the pumping mechanism assembly to cause the pumping mechanism assembly to retract from or engage with the flow path via a disposable cassette. The retraction mechanism is biassed toward the engaged position to prevent free flow of infusates on the flow path. The retraction mechanism is operable in two steps: first, the handle is pulled out against the biassing force; second, the handle is rotated until it locks into the retracted position. The mechanism includes a toggle linkage which aids in locking the mechanism in the retracted position and in biassing the mechanism to the engaged position when the handle is moved out of the locked retraction position.

Abstract: A steering and control system is disclosed which includes a steering wheel that not only allows for the operator to accomplish the steering of a vehicle, but also allows the operator to merely exert a force on the steering to control the braking mechanism of a vehicle. The steering wheel, acting as a unitary device for controlling two of the principal operations of a vehicle, provides the operator with improved handling capabilities and does so without the operator needing to use his/her feet which makes the control system of the vehicle particularly suited for handicapped individuals.

Abstract: A linkage assembly includes a first link connected at a first point to a translation mechanism attached to a support structure. The translation mechanism is arranged to allow the first point of the first link to translate along a substantially straight axis. A second link is pivotally connected at a first point to the support structure, and at a second point to the first link. A second point of the first link travels on or near an arc of substantially constant finite radius when the first link pivots with respect to the second link.

Abstract: An actuating device intended for spacially moving a mobile part in relation to a fixed point, characterized in that it includes a motor (1) driving, around its shaft (2), a winding element (4) pulling a mobile lifting element (9) connected to a fixed point (22) used as anchoring point for the flexible element (4) and sliding, perpendicularly to the axis of the thus constituted pulley block mechanism, in a tube-shaped guide (15) inside which it is housed and compressing a return spring (10) ensuring the return in extension of the mobile element (9), in such a way that this device works in traction and without any buckling stresses.

Abstract: A camless lap nipping mechanism for use in a comber is disclosed. A nipper frame (3) is provided above a combing cylinder (1). A cushion plate (4) is mounted on a distal end of the nipper frame (3). The cushion plate (4) nips a lap (Lp) in cooperation with a nipper member (7). Two stationary pivots (14,15) are provided, one above and one below the nipper frame (3). A four-node link mechanism, having two movable pivots (20,21) with a following lever (19) located therebetween, is provided between the stationary pivots (14,15). The front portion of the nipper frame (3) is pivotably linked to the following lever (19). A nipper shaft (11), and the four-node link mechanism (17,18,19) cooperate in rocking the nipper frame (3).

Abstract: An apparatus comprising a rotating element, a rotary to linear converter, a linearly moving element that linearly extends and retracts when the rotating element rotates in first and second directions, a rotary sensor assembly, integrally constructed with the rotating element, for determining relative movement of the rotating element and for thereby determining relative movement of the linearly moving element, a linear sensor assembly, integrally constructed with the linearly moving element, for providing an absolute position signal each time that the linearly moving element extends or retracts to a predetermined position.

Abstract: A linkage controlled spring powered feed system for maintaining a virtually constant force against a linearly movable member such as the feed member of a honing machine or other device, the system including a lever member having one end which bears against the linearly movable member and an opposite end, the lever member being pivotally mounted at a location between the opposite ends thereof on the machine frame, a linkage assembly bearing against the opposite end of the lever member in a direction to apply force against the linearly movable feed member, the linkage assembly including a first expandable link member having a compression spring for exerting force against the lever member and a second link member for adjusting the position where the linkage assembly engages the lever member as the lever member moves about the pivotal support to change the effectiveness of the compression spring in applying force to the linearly movable member.

Abstract: A handle linkage including two handle arms rotatably secured to each other, while one handle arm is attached to the body of a tool and the other handle arm is attached to an actuatable member of the tool. One or more links connect the actuatable member to the second handle arm allowing for substantially linear movement of the actuatable member into the body of the tool.

Abstract: An iris drive mechanism has two slidable diaphragms which are operatively connected with a motor through a lever arrangement which, for a given motor output shaft rotational speed moves the diaphragms slowly at their extreme positions wherein the aperture is small and large respectively, and more quickly at an intermediate stage. The slower movement when the aperture is small improves the F number resolution.

Abstract: In a drive apparatus for a toggle-type mold clamping mechanism of a vertical injection molding machine, a drive motor movably supported on a guide table via rollers moves horizontally following the vertical movement of a ball screw, when a mold is opened or closed, with keeping the distance between the ball screw and the output shaft of the drive motor constant by means of connecting plates. As the ball screw is rotated by the drive motor via a first pulley, a second pulley and a belt wound around the first and second pulleys, a toggle arm of each of a pair of symmetrical toggle clamping mechanisms is bent to close or open the mold.

Abstract: A force actuator arrangement comprises a force generating member performing an oscillating movement, preferably a rod (7) of magnetostrictive material, force transmitting means-in a disc brake arrangement a caliper (4,5)-, and a device (8,9) for transforming the oscillating movement to a unidirectional application movement of the force transmitting means. The oscillation frequency of the force generating member is higher than the natural frequency of the force transmitting means for enabling the movement transforming device to transmit the movement only during each oscillation stroke in the application direction.

Abstract: A device with a pivoting work arm for carrying and positioning a tool which is moved by a modified Watts linkage powered by a linear actuator having a true straight line motion. The modified Watts linkage has relatively short links resulting in the center of the middle link following an arcuate path. The center of the middle link is drivingly connected to the linear actuator by a pivoting link or a cam. To provide shock absorption for the work arm as it reaches its fully extended position, the modified Watts linkage is coupled to a follower arm yieldably biased by a spring.

Abstract: An articulated arm transfer device employs a rhomboidal link structure defined by two separated pairs of forearms pivotally joined at the elbows and at the wrists. Each wrist supports a holding structure and the elbows are driven in mirror-image semicircular paths by a pair of upper arms which are superimmposed alternately under each pair of forearms as the upper arms are rotated about mutually adjacent shoulder joints. The motion is such that at any time one holding structure is moving rapidly between an extended position and a park position while the other holidng structure is slowly traveling a negligible distance between a park position and a retracted position.

Abstract: A device for producing reciprocating motion is provided and consists of a rotating weight that is forwardly driven along an elongated track to a suspended triangular frame track member thereby causing the triangular frame track member to move down and up in a vertical reciprocating motion which can then be transferred to an external member to perform useful work.

Abstract: The component mounting plate of a control console for an appliance such as a washer or dryer is retractable so that the console's knobs are flush with the appliance's outer trim panel.

Abstract: A releasable mechanical abutment consisting of a profile made of a resilient, thin, and elongated material (1, 30, 42, 70, 90, 107) at least partly bent over itself along a longitudinal axis, a force or effort being applied and exerted on ends of the profile, and at least one triggering element (22, 46, 64, 76, 93, 113) adapted for acting generally perpendicularly on one or several determined sections (10, 38, 50) of the profile by creating a deformation of the profile which materializes a preferential flexural zone, in a manner that abrupt buckling of the profile according to the zone and section is such that it does not exceed the resilient limit of the material, and causes the immediate relaxation of the applied force or effort.

Abstract: A drive mechanism for actuating the fingers of a peristaltic pump has a base, and a drive member reciprocally mounted on the base. A jointed arm is pivotally attached at one end to the drive member and at the other end to a fixed point on the base. A rotary cam actuator is mounted on the base to urge against the arm to reciprocate the drive member.

Abstract: An apparatus has on each side of a conveyor (12) a rotating conveying segment (16, 17) for lifting packs from the conveyor (12) to form a stack (13) of packs (11). An oscillating holding segment (18, 19) oscillates about a common axis with each conveying segment (16, 17) but at a lesser radial distance from the axis then the conveying segment. The holding segments hold the stack (13), but separate to permit a new pack (11) to be added to the bottom of the stack.

Abstract: A cocking device for a compressed air weapon employing pre-compressed air, wherein a cocking member acts on a compression piston via an articulated linkage, wherewith the articulated linkage is in the form of a six-point articulated linkage configured such that the cocking member is swingably mounted to the firing system via the first articulation point, and has a link member swingably connected to it at a second articulation point borne on said cocking member, wherewith the other end of the link member engages one end of a rod (which is a piston rod or piston plunger) which rod bears a fourth articulation point via which it engages a toggle arm the other end of which toggle arm is connected to the said firing system via a fifth articulation point, and wherewith the sixth articulation point is provided either on the other end of the piston-rod or piston-plunger rod or on the bottom of the cylinder of the pressure-producing piston-and-cylinder device.

Abstract: A reverse shift mechanism includes a reverse shift bracket which is reciprocatively movable between a neutral position and a reverse shifting position in response to shift effort applied thereto from a control lever. During movement of the reverse shift bracket from the neutral position to the reverse shifting position, shift effort is transmitted directly from the reverse shift bracket to a reverse fork lever by way of a direct pin, reducing friction loss and transmission loss and reducing the effort required for shifting. During movement of the shift bracket from the reverse shifting position to the neutral position, the reverse fork lever is drivingly connected to the reverse shift bracket by way of a reverse shift plate and a reverse shift arm. While the reverse shift bracket is in the reverse shifting position, the mechanism is prevented from slipping out of reverse by a stopper pin which engages a stopper pin engaging portion of the reverse shift plate.

Abstract: A positioning device having a rotatable and tiltable work table for placing components to be worked on. The device has a frame and a support mounted on the frame having bearings for rotatably supporting a housing. Pivotable linkage arms extend between the frame and the support for positioning the support between upper and lower positions. The support has the work table associated therewith which is rotatable and tiltable relative to the support. The work table is also rotatably mounted relative to the housing. A hydraulic motor and a gear operatively associated therewith are associated with the housing wherein the motor communicates with a hydraulic fluid tank provided at a position spaced from the support. A double-acting piston and cylinder assembly is provided to effect tilting movement of the work table through the housing. The cylinder is pivotably connected to the support.

Abstract: An acceleration control device for a hydraulic drive unit having a rotatable control shaft movable between an on position and an off position. An arm is connected to the control shaft for rotating the shaft between the off and on positions. A motive apparatus is movable between a first position which corresponds to the off position of the control shaft and a second position which corresponds to the on position of the control shaft. A mechanical linkage is connected between the motive apparatus and the arm. The linkage imparts movement to the arm in response to movement of the motive apparatus to cause the control shaft to move between the off and on positions as the motive apparatus moves between the first and second positions, respectively. The linkage is configured to provide a substantially nonlinear relationship between the speed of the arm and the speed of the motive apparatus.

Abstract: A sliding load for calibrating a microwave network analyzer provides an alignment of its center conductor relative to a reference plane defined by its outer conductor. The sliding load includes a latching assembly which in an unlatched condition allows the center conductor to move freely in an axial direction relative to the outer conductor. The center conductor can then project forward of the outer conductor for visual alignment with a mating center conductor of a network analyzer connector. Once the center conductors are mated, the outer conductor of the sliding load and the connector can be butted at the reference plane. The latching assembly can then be rotated into its latched condition in which a spring is compressed. The compressed spring forces the center conductor to retract against a screw stop. The screw stop is adjusted so that when the center conductor is forced against it, the desired alignment of the center conductor and the reference plate is achieved.

Abstract: A load return mechanism is provided having an actuator for driving a load, a load adapted to be driven by the actuator, a first lever driven by the actuator, a second lever attached to the load, and an apparatus for locking the two levers together so that the load can be driven by the actuator and for unlocking the two levers to return the load to a predetermined position upon power interruption.

Abstract: An auger swivel for a concrete mixer includes a channel mounted to a bowl. A center member is pivotally connected to a pivot point near the channel and near an outer surface of the bowl. The center member includes a pair of first wings that extend from the pivot point, opposite each other and away form the bowl. Two slides are received in the channel and are positioned away from each other by a ring. Two second wings are provided. One of the second wings is pivotally connected to one of the first wings at one of its ends and pivotally connected to one of the slides at its other end. The other second wing is similarly connected to the other first wing and the other slide. An actuator rotates the center member about the pivot point and causes the slides to rotate around the outer surface of the bowl and about a longitudinal axis passing through the bowl.

Abstract: In a two-cylinder viscous liquid pump with a pipe switch, which by means of a swing pipe alternately connects one of the pump cylinders with the conveyor pipe and releases the other pump cylinder, and which swing pipe is moved along its path of travel by a sliding pin drive via a rocking shaft at varying speeds, powered by one or more hydraulic cylinders, the invention provides a link in the transmission of motion from the drive output to the sliding pin drive, which link serves to change the distance of the connecting element of the sliding pin drive to the axis of the rocking shaft, going from a maximum distance at the beginning and end of the link travel to a minimum distance at the center of the link travel.

Abstract: Wherever large forces have to be applied over short distances it is useful to employ a force multiplier device. Very large transmission ratios are, according to the present invention, obtained by interruption of the axis of rotation (2) and insertion of an only slightly displaced force transmission axis (4). The force transmission axis (4) can be continuously displaced to both sides of the axis of rotation (2) by means of positioning facilities, preferable an adjusting screw (5) or two wedges. This way variable force generation is obtained with a widely variable range of transmission ratio.The invention can be employed e.g. for the manufacture and operation of presses, clamping, bending and tension devices.

Abstract: An apparatus for replaceably mounting a pouring tube in engagement with a discharge nozzle of a vessel includes an arm mounted for pivotal movement about a vertical axis and for tilting movement about a horizontal axis. A first end of the arm has a fixture for supporting a pouring tube. An operating member is mounted adjacent a second end of the arm to tilt the arm about the horizontal axis between a clamping position, where the pouring tube is pressed against a discharge nozzle of a vessel, and an open position, where the pouring tube is spaced from the discharge nozzle. When the arm is in the open position it may be pivoted about the vertical axis between a first position, where the pouring tube is aligned with the discharge nozzle, and a second position, where the pouring tube is spaced from the discharge nozzle.

Abstract: A vertical movement and fixture device to be used for, for instance, a dental tomograph for photographing entire jaw including a vertical support having a vertical groove inside, a block base which is slidably fit in the groove and is fixed to a slider and a means for fixing and releasing the block base at any desired position in the groove, the means for fixing and releasing the base block comprising a horizontal shaft, a pair of links each one end of which is swingably connected to one end of the horizontal shaft respectively, a pair of brake shoes which are respectively secured to the other ends of the links, and an operation member which supports and vertically moves the other end of the horizontal shaft. According to the device, the block base can be firmly fixed to and released from the support simply by applying slight control force and the cost of the device is low since its construction is entirely mechanical.

Abstract: A low-to-high pressure, fusion-welding, press mechanism for vertical packing machines which seals packed products using packing film. The press mechanism comprises a cylinder, a cylinder rod, a circular disc, a plurality of pairs of levers and a pair of sealing substrates having a pair of sealing blades, these members being interconnected to each other to fusion-weld packed products with said pair of sealing blades under desired sealing pressure.

Abstract: A vehicle has container handling apparatus at each end. This apparatus has a pedestal with track arms which with the pedestal form a lateral trackway on which a carriage can run, for lifting, traversing and lowering a container. Each track arm in the operative position is supported by an over-center toggle-jointed arm. The toggle arms are moved by relatively small and relatively low pressure hydraulic rams. In the over-center position of the arms each is locked by a short shaft mounted by the lower toggle joint and engaging with an edge of the upper toggle joint.

Abstract: The invention is directed to an angle-measuring instrument such as a theodolite, tacheometer or the like having a coarse-fine drive arrangement for presetting a circle part of a graduated circle to a predetermined read-out value. In a preferred embodiment, a coaxial coarse-fine drive arrangement is actuated by a single control knob which is part of an adjustable drive which can be operated in two positions. In the first position, the adjustable drive functions as a coarse drive and includes a spur gear that meshes with a gear on the carrier of the graduated circle to permit adjusting the circle part to obtain a coarse setting thereof. When the control knob and adjustable drive are moved into the second position, the drive becomes completely disengaged from the carrier and functions as a fine drive that operates on a plane-parallel plate pivotally mounted in the read-out optical transmission path of the instrument to finely adjust the light rays passing therealong.

Abstract: A drive means for an oscillating spout is presented which includes a control mechanism which directs a control arm to perform the movement required by the spout and a transmission device which acts to transmit the control arm movement and reproduce it as spout movement. The control mechanism consists of a driving rod pivotally connected to an intermediate lever arm and a universal joint connecting the lever arm to the control arm. A novel movable torque means is associated with the universal joint and enables the spout to be moved in and out of a vertical orientation by overcoming the tendency of the components of the control mechanism to become axially locked in a 180.degree. angle. The movable torque means accomplishes this result by reducing the angle between the intermediate lever and control arm when that angle reaches 180.degree..

Abstract: A rigid marine sail comprises a vertical mast secured onto a deck of a ship; at least one pivot shaft provided substantially in parallel with the mast; a left sail portion and a right sail portion pivotally secured respectively to the left side and the right side of the mast in parallel therewith through the at least one pivot shaft; and at least one drive mechanism for symmetrically pivoting the left sail portion and the right sail portion relative to the mast around the pivot shaft between a deployed position and a folded position.

Abstract: Dumping apparatus is illustrated wherein a novel compound linkage system is employed in which a first link is pivoted to move a receptacle and the like as to be dumped to an intermediate position and thereafter through movement of a second link the receptacle is raised to dumping position, but only after a latch mechanism to positively position the receptacle is secured through a novel lost motion coupling.

Abstract: A seat brake is provided for use in a vehicle having a seat movable between a lower position when weight is placed on the seat and an upper position when weight is removed from the seat, and having a brake selectively engageable to brake the vehicle. The seat brake causes the brake to be engaged when the seat moves to the upper position and causes the brake to be disengaged when the seat moves to the lower position. The seat brake also includes a lockout assembly for selectively causing the brake to be locked in disengagement.

Abstract: A holding mechanism for holding a workpiece in position during an operation being performed by an operating device (7) passing along the workpiece includes a toggle linkage (1, 2, 3), a projecting member (9) attached to the device, and a cam track (2) connected to one part of the toggle linkage, the arrangement being such that, towards the end of the pass of the device, after it has completed its operation on the workpiece, the projecting member (9) engages the cam track (2), further movement of the device causes the projecting member (9) to move the middle pivot (3) of toggle linkage to release it and, hence, release the workpiece as the device completes its pass. Preferably the toggle linkage is arranged as an over-center toggle linkage with its other component formed by a telescopic arm (1).

Abstract: A mounting device for mounting the exhaust casing of a turbojet engine on a rigid support structure connected with an aircraft, there being at least two flows, i.e., a primary flow in the exhaust casing and a secondary flow in a shroud which surrounds the casing and which is fastened to the support structure by a rigid ring. The device consists of a plurality of arms each having means to control its orientation.

Abstract: A brake mechanism (10) operable to maintain an air operable control drive mechanism (12) in position in the event of failure of the air supply is disclosed. A first rack section (22) is attached to a control lever (16) of the control drive mechanism (12) and is engagable in any operable position of the control lever (16) by a second arcuate rack section (24). A compression spring (62) acting on a toggle mechanism (28) biases the racks into engagement, and an air cylinder assembly (26) acting on the toggle mechanism (28) against the compression spring (62) maintains the second rack section (24) out of engagement with the first rack section (22) so long as the air supply to the air cylinder assembly (26) is maintained.

Abstract: A heating element for use in an electric blanket or the like including conductors spaced apart in a positive temperature coefficient (PTC) material which serves as a self-limiting heater. The conductors are separated by a spacer which prevents the conductors from engaging each other when the PTC material softens or melts during annealing thereof. A coating of material having a higher melting point than the PTC material is placed over the PTC material to maintain its shape during the annealing process.

Abstract: In a leverage system, a four-member articulated linkage pivoted at one extremity on a support, one linkage member being rigid with a load arm carrying a gripper assembly for holding a tool, is connected via a pair of force-transferring levers to a pneumatic cylinder for counterbalancing gravitational moments. One lever is articulated at one end to a pivot of the four-member linkage and at another end in a toggle link to the piston of the cylinder, while the other lever is pivotally connected at one end to the piston and the toggle lever and at an opposite end to an arm of a bell crank forming a linkage member.

Abstract: Apparatus for moving an injection cylinder of a molding machine between an injection position and a teeming position comprises a drive means, a link mechanism disposed between a pin on the side of the injection cylinder and a stationary pin secured to a lower platen so as to be expanded and collapsed by the drive means, a cam plate secured to oppose the side of the injection cylinder and provided with guide slot comprised of a longitudinal slot parallel with the axis of the injection cylinder when it is in the injection position and an inclined slot contiguous with the longitudinal slot, a first roller mounted on the side of the injection cylinder to be moved along the guide slot in accordance with the operation of the link mechanism, a guide member including a guide slot for moving the injection cylinder in the axial direction at the injection position, and a second roller positioned in the guide slot to act as a center of swinging of the injection cylinder.