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4765651 |
Adjustable anchoring slide block assembly
An adjustable seat belt system having a plurality of anchor fittings where one or more anchoring slide block fittings comprise a gear mounted to the anchoring slide block for positioning the...
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4763539 |
Mechanical converter from rotational to linear movement
This disclosure relates to an apparatus for converting rotational movement into linear movement. The apparatus includes a roller unit and a rotatable screw. The roller unit is adapted to be...
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4760907 |
Variable lead differential travel limiting mechanism
An apparatus is provided for limiting the relative rotation between coaxial shafts, including a helical thread about one of the shafts, a nut having a follower received in the helical thread, a...
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4760635 |
Method of forming a helical ball screw member
A method of forming a ball screw member from an elongated workpiece having an outer cylindrical surface, as well as the ball screw member formed by the method. A helical ball screw thread is...
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4759398 |
Operator for venetian blinds combination operator and venetian blind, and method of operating venetian blinds
A venetian blind incorporating a wand having an operator thereon at any desired position. The operator is nonrotatably associated with the wand, and the wand and operator are so constructed that...
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4759283 |
Value selection mechanism for postal franking machines
To enable a single motor in a franking machine to set the printing wheels in a printing drum in addition to rotating the drum and feeding items of mail through the machine, four carriages, each...
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4753124 |
Screw and nut device for taking up clearance
Device comprising a screw (6) and a nut (8) subjected to an axial force which alternates in opposite directions, the thread (7) of the screw having a given helix angle and a given pressure angle...
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4753122 |
Screw-nut type mechanism
A screw-nut type driving mechanism having a rotatable screw shaft, a nut engaged with the screw shaft and a driven member secured to the nut. The nut has an axially tapered outer surface which is...
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4750378 |
Ball screw mechanism
An easily fabricated and assembled ball-screw mechanism of compact design comprises a cylindrical member having a helical guideway on its inner circumferential surface. The cylindrical member is...
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4750067 |
Head positioning mechanism for data cartridge recorder
A head positioning add mechanism for a multitrack data cartridge recorder including a stepper motor, a lead screw driven by the stepper motor and a head mounting slide engaged with the lead screw...
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4748866 |
Linear helical actuator
A fluid-powered linear actuator having a body, and an output shaft with a piston portion disposed within the body. The shaft is axially movable in a first direction in response to fluid pressure on...
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4747320 |
Screw and nut drive with rotation lock
In a device for producing self-locking properties of a screw and nut device the nut co-operates with a torque-transmitting part which is rotatable in relation to the nut. Torque is transmitted via...
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4741220 |
Hydrostatic pressure worm-rack devices
In a hydrostatic pressure worm-rack device of the type comprising a worm formed with operating oil supply opening at the opposite flanks of respective teeth of the worm, opposite flanks of...
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4741221 |
Feed and rapid return means for machine tools
The combination of a lead screw and a multi-ball nut. The balls are disposed around the axis of the lead screw. The balls are mounted on the nut either to be received and retained in the valley of...
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4739673 |
Electrically operated tiltable vehicle steering mechanism
An electrically operated tiltable vehicle steering mechanism includes an electric motor of a reversible type which is adapted to drive through a speed reduction mechanism a screw shaft of a...
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4738415 |
Hinge line flight actuator
A fluid-powered rotary actuator particularly well suited for use in operating an aircraft flight control surface. The body has a stationary body portion and a rotatable body portion with an...
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4730503 |
Linear differential mechanism
A differential mechanism including a housing, an elongate shaft disposed in the housing which is coupled to an object to be moved with the shaft defining a ring-handed thread along a first portion...
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4729250 |
Lead screw for moving a head
A lead screw for moving, for example, a printing head or a magnetic head. The screw is molded from plastics by a split mold comprising a plurality of longitudinally extending sections. It has on...
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4726247 |
Gear for converting a rotational into a translational motion
An actuator has a worm gear which drives a pair of flexible parts into a guide where they are united to form a rigid transmission member. The parts have interlocking teeth which cooperate with each...
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4723486 |
Device for automatic angular positioning of a plurality of indexable rotary machine elements, and a machine comprising a device of this type, especially a postal franking machine
A device for automatic angular positioning of indexable rotary elements, ecially for postal franking machines and the like comprises a common indexing-control gear-wheel rigidly fixed to a...
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4715262 |
Ballistic tolerant dual load path ballscrew and ballscrew actuator
Ballscrew actuators are well known for use as a primary flight control actuator for operating a flight control surface. The operation of the ballscrew actuator is critical to the success of an...
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4700251 |
Head carriage moving mechanism of disk recording reproducing device
A disk recording-reproducing device having a carriage with a read/write head, a screw shaft to shift the carriage with an engaging element through coupling between a spiral groove of the screw...
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4695233 |
Screw rotor mechanism
A pair of dry-sealed screw rotors for compressors which includes rotor tooth profiles in which an inter-tooth gap at a profile point on male and female rotor of a normal temperature is determined...
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4688440 |
Member for intermittent feed motion
An intermittent feed member adapted for an intermittent feed mechanism comprises a shaft provided having a plurality of individually groove portions which are formed in its outer periphery along...
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4685345 |
Apparatus for converting rotary motion to translatory motion
An apparatus for converting rotary motion to translatory motion. The apparatus contains shaped rollers located therein so that the longitudinal axis of the rollers forms an acute angle with the...
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4685344 |
Helical ball gearing
A helical ball gearing for converting axial or linear motion into rotary motion and vice versa. In a helical ball gearing including a rotor having at least one helical groove, a non-rotatable but...
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4683767 |
Rotary actuator with backlash elmination
A fluid-powered helical actuator including a cylindrical body; a rotatable output member supported for rotation relative to the body and connectable to an external device; first and second...
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4680982 |
Circulating-ball drive
A spindle or leadscrew and an associated nut, forming part of a driving assembly of the circulating-ball type, have helical threads of symmetrical profiles in the shape of pointed arches whose...
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4677869 |
Linear actuator
A linear actuator comprising a ball screw, ball nut, and an endless ball circuit disposed between the two has an improved end closure body having a guide portion extending to approximately one...
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4674349 |
Locking mechanism
A mechanism (10) engageable with a threaded shaft (12) which includes a pair of nut halves (16,18) movable into and out of engagement with the shaft (12). The nut halves (16,18) are received within...
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4671751 |
Screw rotor tooth profile
A screw rotor tooth profile which comprises a pair of male and female rotor tooth profiles engaging each other. The screw rotor tooth profile is configured such that at least one of the male and...
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4669781 |
Linear type seat recliner
The present invention provides an incremental linear vehicle recliner seat. The invention utilizes a polygonal rod with threaded apices which is pivotally connected with the seat back. The rod is...
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4667524 |
Carriage driving machanism
Herein disclosed is a carriage driving mechanism for use with a floppy disc drive or the like to drive a carriage carrying a magnetic head so that the magnetic head may be driven to a desired track...
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4665765 |
Anti-friction worm gear speed reducer and needle screw
An anti-friction worm-worm gear type speed reducer torque converter is disclosed. The speed reducer has a rotatably mounted worm gear adapted to mesh with a rotatably mounted worm incorporating a...
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4656884 |
Power transmission mechanism
A power transmission mechanism in which a small rotatable screw thread is arranged symmetrically with a large rotatable screw thread. The pitch and the pitch circle diameter of the large screw...
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4655100 |
Rolling element jackscrew
An improved rolling element jackscrew includes at least three planetary rollers interposed between an inner shaft and an outer nut, wherein one of the shaft and nut is formed with grooved threads...
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4651969 |
Valve actuator
A valve actuator for a subsea oil well installation includes a rotatable adjusting member (53) for engagement with the valve spindle, and a linear fluid actuator (17) coaxial with the adjusting...
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4651587 |
Ring gear/pinion gear design
A design for a series of ring gear and pinion gear right angle gear-sets (100) utilizing a single common ring gear (114) and a plurality of pinion gears (112A-D), each having different numbers of...
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4649764 |
Hoist elevating means
A clothes hoist comprising a bearing block secured to the outer surface of the fixed lower standard of a clothes hoist but having an annular projection which extends through an aperture in the wall...
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4649814 |
Rotary value selector device
A postage meter has a print drum with print wheels which are shiftable to select the value of the postage. The positions of the print wheels are controlled by the positions of axially displaceable...
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4648285 |
Apparatus for converting rotational motion to linear motion
Apparatus is provided for converting rotational motion to linear motion which includes a screw shaft and nut surrounding the screw shaft, each having a helical thread. A plurality of threaded...
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4643041 |
Preloaded ball nut and screw assembly and method of manufacture
A ball nut and screw assembly preadjusted and preloaded by injecting a liquefied pressurized thermoset resin through a mold and into the area between adjacent ball nuts and allowing the thermoset...
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4641806 |
Screw slide system having a manual or electric control or the like
The slide comprises two fixed lower sections and two upper sections. A gear-down mechanism is rigidly connected to one of the upper sections, the fixed lower section having an inner face provided...
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4638677 |
Intermittent drive member
An intermittent drive member comprises a shaft with a spiral groove formed in the outer periphery of the shaft. The spiral groove includes a plurality of groove portions each having a linear bottom...
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4637200 |
Container forming apparatus for packaging machine
A container forming apparatus for packaging machine by which a vertical tube filled with contents is sealed over a required width at a spacing corresponding to the length of one container and is...
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4628753 |
Lightweight ring gear for a differential
Lightweight ring gear for an epicyclic gear differential. The ring gear is fastened to a radially outwardly extending flange and includes inner and outer perimeters and a surface which is adapted...
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4624288 |
Mechanism to control the movements of weft insertion members in shuttleless weaving looms
In a mechanism to control the movements of the weft carrying grippers in shuttleless weaving looms--of the type wherein a gearwheel controlling the grippers carrying strap is caused to rotate...
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4623859 |
Remote control circuit breaker
An electric circuit breaker capable of being opened and closed from a remote location. The circuit breaker includes a stationary contact, a movable contact mounted on a carrier and a trip mechanism...
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4615229 |
Device for translating a rotary motion to a linear one
A device for translating a rotary motion to a linear one consisting of a first elongate body (1) provided with screw threads extending along the body and a second body (5) rotatable coaxially with...
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4615230 |
Gear transmission comprising two worms
The driving shaft (11) is equipped with two oppositely threaded worms (13a, 13b) with which respectively mesh on opposite sides two worm-wheels (14a, 14b) of a first kinematic channel and two...
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