A steering mechanism may comprise an actuation system for one-fingered operation by a user, the system configured to move at least a distal portion of the medical device such that 360 degree articulation is achievable, and a housing coupled to the system, the housing having proximal and distal ends. The system may comprise a first lever rotatable about a first axis, the first lever coupled to a first cam and configured to move the first cam from a first position to a second position when rotated about the first axis to deflect the distal portion; and a second lever rotatable about a second axis, the second lever coupled to a second cam and configured to move the second cam from a first position to a second position when rotated about the second axis to deflect the distal portion, wherein the first lever is coupled to the second lever.

When the rear axial cylinder (3) is rotated, the cam cylinder (17) is also rotated, thereby the cam protrusion (18a) moves forward by means of the functions of the cam groove (17a) and the slit (18b), so that the slider (18) moves forward to cause the writing body (14) to move forward against a biasing force by the biasing member (15). The cam cylinder (17) and the rear axial cylinder (3) are fixed via the adjustment mechanism of rotational positions (17n).

Surveillance networks are used to observe large areas, like public places, streets, public buildings or private houses, privates premises etc. The surveillance networks often comprise a plurality of surveillance cameras. Such surveillance cameras should be small, robust, trouble-free and have low-maintenance requirements. Subject-matter of the invention is a linear actuator (8) for a linear motion of a component of a camera (1), the linear actuator comprising a supporting structure (6), a motor (10) arranged on the supporting structure for generating a rotational movement, a component carrier (7) for carrying the component and for performing the linear motion relative to the supporting structure, a gear mechanism (11) for transmitting the rotational movement, whereby the last gear of the gear mechanism before the component carrier is a transfer gear (20), whereby the transfer gear comprises a guide way (23a, b, c) extending in rotational direction of the transfer gear with a slope along the guide way whereby the component carrier is coupled with the guide way by resting means (24a, b, c), so that the component carrier is displaced in the linear direction (9) by a rotational movement of the transfer gear due to the slope of the guide way.

An apparatus includes a fixed plate 902 mounted in a bed cabinet 108 and a rotating plate 904, mounted to a bed frame 106, coupled to the fixed plate 902 at a pivot point 906. A first end of a first lever arm 918 is coupled to the fixed plate 902. A first end of a second lever arm 920 is coupled to the first lever arm at a point between the first end and the second end of the first lever arm 918. The second end of the second lever arm 920 is coupled to the rotating plate 904 at a position that is offset a horizontal distance from the pivot point 906. A first end of a gas spring 908 is coupled to the fixed plate 902 and the second end of the gas spring 908 is coupled to the second end of the first lever arm 918.

A jet engine actuation system includes a first ring gearbox, a second ring gearbox and an actuator. The first ring gearbox includes a first ring driveshaft coupled to a first portion of a synchronization ring included in a jet engine. The second ring gear box includes a second ring drive shaft coupled to a second portion of the synchronization ring. The actuator has a first actuator gearbox configured to generate a first rotational output and a second actuator gearbox configured to generate a second rotational output. A first drive shaft transfers the first rotational output to the first ring gearbox and a second drive shaft transfers the second rotational output to the second ring gearbox. The actuator simultaneously controls the first and second actuator gearboxes such that the first and second rotational outputs are simultaneously transferred to the first and second ring gearboxes to rotate the synchronization ring.

A holding device having release mechanisms for securing and releasing one or more ball, dart, and/or plug members from the holding device into a tubular string disposed in a wellbore. The release mechanisms may include a planetary gear arrangement for extending and retracting a plunger member disposed below the ball, dart, and/or plug members. The release mechanisms may include a bevel gear arrangement for extending and retracting a finger support member disposed below the ball, dart, and/or plug members. The release mechanisms may include a pivotable, spring type arrangement for extending and retracting a finger support member disposed below the ball, dart, and/or plug members.

A drive device comprises a housing pipe, a protection pipe, and a linear drive. The housing pipe and the protection pipe can be moved axially relative to each other in a telescopic manner. The housing pipe is arranged with the closed end thereof facing away from the protection pipe on a fixed base member or a movable component, and the protection pipe is arranged with the closed end thereof facing away from the housing pipe on the movable component or the base member. The linear drive is arranged in at least one of the housing pipe and the protection pipe, and configured to drive the housing pipe and the protection pipe such that the housing pipe and the protection pipe are axially movable relative to each other.

A drive device, comprising a first housing part and a second housing part which can be displaced with respect thereto, and comprising a motor assembly, which comprises a rotor, two mounting elements and two permanent magnet shells, and if desired comprising a transmission assembly and/or a sensor unit associated with the motor transmission.

A drive assembly (70) for a drug delivery device (1) comprises a rotation member (21) being configured to be rotated in a first direction (44) during setting of a dose of a drug and to be rotated in a second direction (47) during delivery of the dose, a drive component (20) being configured to follow rotational movement of the rotation member (21) in the second direction (47) during delivery of the dose and a stop member (26) being configured to prevent rotational movement of the drive component (20) in the first direction (44). The drive component (20) comprises a first drive part (71) and a second drive part (72), coupled to each other such that relative rotational movement of the first and second drive parts (71, 72) is prevented and relative axial movement is permitted.

A hopper gate opening/closing mechanism for use in a combination weigher (100) includes an actuator (31) for generating a driving force for opening and closing the hopper gate; and a cam mechanism (40A, 21) for opening and closing the hopper gate (14A) based on the driving force applied by the actuator (31); wherein the cam mechanism (40A, 21) inhibits the hopper gate (14A) from being opened in a position at which the hopper gate (14A) is closed.