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| Number | Title | Issue Date |
| 4554842 | Anti-backlash mechanism for machine drive An anti-backlash mechanism for a machine drive is disclosed, wherein a shaft carries a rotary worm wheel having drive connections to the tangs of two back-to-back clutch units. The first clutch unit is connected to a rotatable shaft, concentric with the w... | 11/26/1985 |
| 4550626 | Servo-motor assembly for machine slides A servo-motor assembly for a machine slide having a rack and pinion drive that includes a servo-motor support with a pinion carrying output shaft all totally supported by and cantilevered on a pair of normally flat parallel springs that bias the motor sup... | 11/05/1985 |
| 4541294 | Drive assembly for an astronomical telescope An extremely accurate and inexpensive true sidereal rate drive assembly for an astronomical telescope, the telescope including a base having a driven gear rotatable about the polar axis of the telescope, and the drive assembly including a housing mounted ... | 09/17/1985 |
| 4532822 | Shaft and gear adjuster An adjustable mounting for a shaft on a thin metal support plate wherein a cylindrical lounting flange is punched out of the plate to form an opening, and a bearing is rotatably mounted within the opening. The bearing has a radial flange engaging the exte... | 08/06/1985 |
| 4532818 | Clutch interlocking mechanism A clutch interlocking mechanism for use in a pushbutton tuner wherein a drive gear provided on a clutch mechanism is meshed with a rack of a memory slide, a support bracket, on which the clutch mechanism is mounted, is supported, at one side thereof, by a... | 08/06/1985 |
| 4530253 | Gear assembly for automobile gear transmission A gear assembly for an automobile gear transmission includes a pair of driving and driven gears permanently in meshing engagement with each other, an additional gear axially slidable and rotatable on a hub projection of the driven gear and being permanent... | 07/23/1985 |
| 4528862 | Precision gear mount A gear arrangement is provided for precisely driving a goniometer in an X-ray apparatus with zero backlash. This arrangement involves structure for maintaining a preload between a driving pinion gear and a spiroid gear rotating an output shaft. The preloa... | 07/16/1985 |
| 4524643 | Epicyclic gear The teeth of the sun pinion, planet wheels and hollow wheel have a profile correction changing continuously along the gear width and varying in opposite directions between the meshing gears. The sun pinion, hollow wheel and planet carrier are so mounted a... | 06/25/1985 |
| 4519264 | Gear assembly for eliminating knocking noises in transmission A gear assembly includes a pair of driving and driven helical gears permanently in meshing engagement with each other to provide a torque transmission therebetween, and an additional plate-like gear formed at its outer periphery with helical teeth the hel... | 05/28/1985 |
| 4519231 | Forming machine including drive mechanism having rack and gear synchronization A forming machine (10) disclosed has an improved drive mechanism (28) for driving a pair of slides (20,22) mounted on upper and lower bases (12, 14) so as to provide forming of a workpiece for forming racks (24, 26) mounted on the slides. Upper and lower ... | 05/28/1985 |
| 4515380 | Vehicle with two steerable wheels To obtain unequal angles of turn for two-steerable wheels of a vehicle inexpensively, each wheel is turned through a gear. The two gears have a center to center distance corresponding to the track of the steerable wheels and are dimensioned to accommodate... | 05/07/1985 |
| 4513635 | Differential gear for automotive vehicles A differential gear for automotive vehicles comprising a washer interposed between the backs of pinions and the inner surface of a differential casing and fitted to a pinion shaft. The washer has at most a thickness of l tan wherein l represents a ... | 04/30/1985 |
| 4493571 | Print guide mechanism A printing mechanism includes a right-angle drive for imparting rotation to a rotary printing element having printing type thereon, rotation of the print element selecting a specific character to be imprinted on a printing medium. The right-angle drive pe... | 01/15/1985 |
| 4492018 | Method of axially positioning a rotating annular member supporting shaft within a support A scheme for accurately and quickly axially positioning a rotatable member such as the axles of a differential or a shaft supported impeller of a centrifugal pump within a housing or similar support for rotation therein with predetermined axial bearing cl... | 01/08/1985 |
| 4487087 | Ball nut having adustable preloading An improved ball nut having adjustable preloading comprises a pair of ball nut halves both in threaded engagement with a ball screw. Only one of the nut halves is secured to a movable machine member, the other nut half being movable to the relative fixed ... | 12/11/1984 |
| 4487091 | Speed reducer and method for reducing blacklash A method and apparatus for minimizing backlash and improving the efficiency of speed reduction mechanisms in which a series of rollers are equally spaced in a circle on a disk to perform operationally somewhat like an internal ring gear. Mounted for eccen... | 12/11/1984 |
| 4480489 | Crank mechanism in a pushbutton tuner A crank mechanism in a pushbutton tuner which comprises a side plate secured on associated one end of crank bars and a crank gear mounted on the outer surface of the side plate, both being supported together by a caulked shaft and one of the crank gear an... | 11/06/1984 |
| 4478102 | Tilt drive for metallurgical vessels A tilt drive is provided for a metallurgical vessel which is mounted on a large sprocket wheel driven by two or more reduction gears. The reduction gears are joined by a torque equalizing apparatus which transmits torque from the pinion of one gear to the... | 10/23/1984 |
| 4458546 | Gear mechanism A load-splitting transmission has its drive shaft journaled with respect to the housing in an axial bearing and supported only by a radial bearing forming part of the clutch connecting said drive shaft to the output shaft of an engine so that the axis of ... | 07/10/1984 |
| 4449417 | Carrier moving mechanism Disclosed is a carrier moving mechanism for preventing occurrence of the backlash between a screw shaft and a carrier transmitted by this screw shaft. This carrier moving mechanism comprises a screw shaft and a carrier having secured thereon first and sec... | 05/22/1984 |
| 4435120 | Arm for a programme controlled manipulator An elephant nose type arm for a programme controlled manipulator, comprises gears meshing with each other, connecting members for connecting the gears to each other and actuator for rotating the one of the gears to bend said arm.... | 03/06/1984 |
| 4434677 | Anti-backlash spring-mounted nut An anti-backlash nut construction wherein a base portion that is adapted to be carried by a machine part, has a bore through which a lead screw can pass. The nut has a threaded portion which is connected to said base portion and which has a bore matching ... | 03/06/1984 |
| 4435110 | Drive train for gear hobbing machine A gear hobbing machine is provided with a hypoid gear set and a spur gear set for reducing the final drive to its work spindle. As a result of this arrangement, a wide range of machine speeds are available and reverse hand hobbing can be carried out.... | 03/06/1984 |
| 4433755 | Elevator apparatus An elevator apparatus comprising a reduction gear unit having reduction mechanism of rotary parts of parallel axial gears, an input shaft and an output shaft as main parts; a main rope suspending a car and a counterweight; a traction sheave which is direc... | 02/28/1984 |
| 4433590 | Anti-backlash nut assembly An anti-backlash nut assembly is disclosed for longitudinal movement along a screw which has an external thread thereon, in response to relative rotational movement between the nut assembly and the screw. The assembly includes a first nut part having an i... | 02/28/1984 |
| 4428398 | Pressure control valve A pressure control valve including a valve, a spring for pressing the valve, and a power input means for compressing the spring further comprises a backup force-generating mechanism for producing and directing a backup force counter to the direction in wh... | 01/31/1984 |
| 4422344 | Load proportional antibacklash gear drive system A novel load proportional antibacklash gear drive system is provided wherein each portion of a split pinion gear is provided with a pressure chamber connected to a torque sensor and servo control unit for controlling the pressure applied individually to e... | 12/27/1983 |
| 4417482 | Diaphragm mounted gear drive detuner A marine drive is shown in which a reverse pinion, which is in continuous mesh with a bull gear, is provided with a detuner to prevent vibration while it idles. The detuner includes a ring gear detuner pinion disposed about the reverse pinion shaft. The d... | 11/29/1983 |
| 4414859 | Bevel gear differential drives and methods for adjusting their tooth engagement A method and apparatus for adjusting tooth flank play between two sun gears and at least two planetary gears of a bevel gear differential drive is provided in which, after establishing the operating positions of both sun gears on their sun gear shaft, eac... | 11/15/1983 |
| 4406174 | Noise reducing arrangement for gears The meshing bevel gears used to drive the vertical axis looptaker of a sewing machine are preloaded with a compressed resilient member which is prevented from deflecting to a position beyond its elastic limit during the running of the gears.... | 09/27/1983 |
| 4399718 | Pivot drive for manipulator A pivot drive for interconnecting a pair of members that are relatively pivotal about a pivot axis has a torsion rod extending along a rod axis and rotatable by an appropriate drive relative to one of the members. This rod has outer ends carrying input ge... | 08/23/1983 |
| 4376401 | Bevel gear drive with means to control backlash for flying ram cutoff machine A flying ram cutoff machine for severing successive lengths of an elongated workpiece continuously moving in the direction of its longitudinal axis employs a bevel gear drive for swinging a ram in synchronization with movement of the workpiece. A motor dr... | 03/15/1983 |
| 4372176 | Tapered tooth helical gear drive train for eliminating the need for end thrust bearings A method and apparatus for eliminating axial thrust and consequently the need for thrust bearings in parallel shaft and crossed-axis helical drive arrangements is disclosed. According to this invention, a gear with helically cut teeth which maintain a con... | 02/08/1983 |
| 4338853 | Means to minimize the backlash of meshing gears A precision power gear train assembly particularly adaptable for use with vehicles having a 360° rotatable turret mounted thereon. The assembly embodies novel spring and stop means to minimize backlash and to limit gear tooth disengagement of the enmeshe... | 07/13/1982 |
| 4331040 | Anti-backlash gearing A gear system adapted to eliminate backlash between a set of reversible gears. The gears are also arranged to perform without backlash when their center distances are changed. One gear of the double helical type fixed to a first shaft is in engagement wit... | 05/25/1982 |
| 4305307 | Anti-backlash gear drive In a gear train where there is backlash, the backlash is prevented by a gear drive which includes an anti-backlash driven pinion which is mounted on, or is otherwise connected to, a torsion spring shaft that is adjustable for twisting, and thereby, loadin... | 12/15/1981 |
| 4297919 | Mechanical power transmission method and means A particularly compact and efficient transmission includes one or more helix-like races having a common axis of rotation, a support member extending along the axis, one or more bearing units axially fixed to the support member and with their peripheries p... | 11/03/1981 |
| 4294159 | Thread delasher in vehicle steering gear Power steering gear with integral rotary valve for directing hydraulic pressure fluid to and from a hydraulically actuated rack piston nut drivingly connected to an output and in which an internal spring device effectively reduces lash in the threaded con... | 10/13/1981 |
| 4292857 | Cylindrical gear with helical tooth wheels A cylindrical gear train comprising first and second gears having helical eth of different thickness with different pitch diameters for the left hand and right hand sides of the teeth and with different nominal angles of inclination and different mesh cor... | 10/06/1981 |
| 4292722 | Renewable nut for a lead screw drive and method of making same In a lead screw drive, such as that used in a lightweight lathe or milling machine for driving the workpiece relative to the cutting tool, the core of a drive nut is made of a material having a relatively low melting temperature, such as babbitt metal or ... | 10/06/1981 |
