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Document Title |
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4893785 |
Lifting device
Lifting device which is a compact, pantographic-type jack with arms forming a pantograph, and driven by a central spindle. Lower arms are suitably linked to a base, with the upper arms suitably...
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4872230 |
Electrically powered automobile jack and nut remover
A portable automatic automobile jack includes an electrically powered automobile tire nut remover. The jack is powered through a cigarette lighter type plug by the automobile battery, and has an...
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4848733 |
Vehicle jack assembly
A vehicle lifting jack assembly having a pantographic mechanism carrying a head bracket for engagement with a jack point formed in a vehicle body. The head bracket is formed with a first groove...
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4836502 |
Pantograph jack
A pantograph jack for lifting and lowering a vehicle chassis or the like includes a pair of upper arms and a pair of lower arms pivotally connected to each other by a metal member and a nut member,...
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4802653 |
Scissors jack
A scissors jack which has channel link members formed with slots which can be placed over rivets in the jack which have previously been staked in the base or the cap without the channel or link...
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4787600 |
Transmission jack attachment
An attachment for supporting a heavy object, such as an automobile or truck transmission, to a mobile lifting jack of the type having a conventional, generally horizontal saddle member, the...
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4771986 |
Jack of a pantograph type (II)
This invention relates to a jack of a pantograph type, especially to the improvement of pivot joint mechanism of jack comprising screw nut body engaged with screw, metal body having screw bearing...
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4765595 |
Scissor jack
A scissor jack has a leg having a lower end adapted to bear on the ground, a support arm having a lower end pivoted on an opposite upper end of the leg at an intermediate horizontal axis, and a...
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4732366 |
Arm unit for use in pantograph type jack
An arm unit for use in a pantograph type jack wherein a main driving cam having an effective cam face constituted with an arc of a circle is formed to one side plate at the mounting end of a...
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4720081 |
Screw drive six link side lift vehicle jack assembly
A jack assembly which is adapted to engage a side frame of an automotive vehicle for the purpose of raising and lowering the same relative to its adjacent ground surface comprises a base for...
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4720082 |
Guide rod drive method and structure using slidable drive screw nut set for generating drive feeding dependent on the speed change of the load
A drive rod apparatus and method generates a drive feed which is dependent on the speed change of the load. The apparatus and method, which is preferably embodied in a lifting jack, includes a...
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4695036 |
Screw bar for a pantograph-type jack
A screw bar for connecting a nut member and a bearing member of a pantograph-type jack includes a cylindrical-shaped bar member having a joint portion formed integrally with the bar member at one...
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4653727 |
Motor driven scissors jack for automobiles
The invention relates to motor driven scissors jacks for automobiles and is driven by the electric power source from the cigarette lighting socket of any automobile. Its DC motor is driven through...
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4638610 |
Theatrical stage
A theatrical stage, comprising a plurality of side-by-side, screw-operated shearlegs tables, each such table having its own operating mechanism connected to the operating vertical screw. The screw...
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4589621 |
Ergonomic monitor stand
A stand (10) is disclosed for supporting a computer display (8) workstation for easy adjustment without tools to a desired position by rotating the stand, tilting a platform (60) attached to the...
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4586696 |
Vehicle lifting jack with integral stowable crank handle
A vehicle lifting jack of the actuating screw type is provided with an integral stowable crank. The crank comprises an L-shaped member pivotally connected to a crank handle. These elements are...
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4583713 |
Pantograph jack apparatus
A pantograph jack apparatus for elevating a motor vehicle includes first and second upper arms pivotally connected to a supporting plate engageable with the motor vehicle and first and second lower...
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4549721 |
Portable jack for small tractors and like vehicles
In the jack of the invention a chassis member of a small garden tractor, riding lawn mower or like vehicle is engaged by the free ends of a transversely spaced apart set of lifter arms pivoted at...
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4509724 |
Pantagraph type jack
Herein disclosed is a pantagraph type jack in which one of the support portions for supporting an actuating bolt forms a bolt-receiving nut. This bolt-receiving nut is equipped with a dump nut...
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4493478 |
Jack
A jack comprising a screw and a nut member, the displacement of which along the screw produces a change in the distance between the active portions of the jack. The jack has a catch which prevents...
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4457657 |
Integral paper collection and transfer assembly
A ream collection lift table and asssociated transfer conveyor system are contained in a unitary assembly which is mounted beneath a sheet discharge end of a sheeting machine. The lift table...
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4454515 |
Antenna mount
An antenna mount for use with a dish type antenna for variably positioning the antenna towards a predetermined point in the heavens. The mount comprises (a) an upstanding base means, (b) a...
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4366948 |
Car jack
A car jack having a stand column secured at its lower end to a plate-like base and pivotally supporting an arm having a head for engaging a vehicle and adapted to be pivoted by a threaded spindle...
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4289300 |
Car jack
There is provided a car jack comprising a column attached at its bottom to a base, and a load-carrying arm pivoted to the column and movable by a screw spindle. The screw spindle is pivotably...
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RE30640 |
Vehicle lifting jack
A shear-type vehicle jack has an arm articulated to a leg whose foot is provided with a rolling formation adapted to rest upon the ground and a larger locating portion. A crank rotates a thread...
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4194725 |
Vehicle jack
A vehicle jack having a support leg (10) on which is pivotable a support arm (23) by means of a threaded spindle (17) which is pivotally mounted in both the support leg and the support arm. A...
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4180252 |
Vehicle door and bumper lift
A lift for raising and lowering a vehicle door, bumper or other vehicle parts adjacent a vehicle when installing or removing the parts from the vehicle. The lift eliminates the need of physical...
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4165255 |
Nuclear fuel rack lateral support and preload device
A lateral support device for a nuclear fuel rack vertically positioned within a walled enclosure which provides a preload to maintain effective support. The device includes a scissors-jack which is...
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4093182 |
Vehicle jack
A vehicle jack in which a push rod is displaced during the later portions of the operation of the actuating member to tilt the support leg and bring into play an additional support surface for...
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4092012 |
Ratchet type quick feeding mechanism for automobile pantograph jack
A ratchet type quick feeding mechanism for an automobile pantograph jack including a round bar having a ratchet screw portion, a pawl member for engaging the teeth of the ratchet screw portion, a...
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4086828 |
Disc brake pad spreader
A manually-operable tool is provided for insertion between the inboard and outboard caliper-mounted disc brake pads for the purpose of spreading the pads to facilitate placement over the rotor. The...
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4055329 |
Scissors jack
A scissors jack is adapted to be mounted permanently to the bottom frame of a vehicle and enclose the working members of the jack in the closed position. Generally, four of these scissors jacks...
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4025054 |
Arms for pantograph jack
A pantograph jack having two pairs of arms includes gear teeth portions on one end of each of the arms. The gear teeth portions are formed on flange portions of the one end of each of the arms, and...
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4025053 |
Screw actuated scissor jack with a self adjusting bearing surface
There is disclosed a scissor-type screw actuated jack arrangement having a floating load bearing plate centrally situated over supporting lift arms when in the fully extended position and a pair of...
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3976281 |
Variable height work surface
A variable height work surface easily and quickly adjustable from a low profile to a desired level by utilizing double acting scissor legs controlled by a screw drive mechanism.
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3938780 |
Automobile chassis jack
A low profile lifting device having an elongated base, a rotatable shaft extending along said base, an arm having a nut at one end threadably mounted on the shaft and a lifting pad at the other...
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3928946 |
Three axis adjustable disc sander
A three axis, manually adjustable disc sander which may be disposed in a fixed position relative to a horizontal support that includes an elongate guide, and on which support a workpiece is...
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3923296 |
Device for tilting automobile bodies on automobile body assembly lines
Device for tilting automobile bodies during assembly, comprising an underframe movable along the assembly line, e.g. by means of a conveyor. The underframe carries a fastening frame having means to...
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3923286 |
Shoring and jacking rig
A shoring and jacking rig is provided in which a pair of compression members pivoted at one end to a bracket or brackets for engaging a shored member are pivoted at their opposite end to the upper...
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3906777 |
Jack for repairing car body parts
This is a car repair jack for manually or electrically applying pushing or pulling pressure to automobile body or bumper parts which have become bent, as in an accident, to straighten them out as...
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3892132 |
Vehicle jack
A vehicle jack comprising a stand on which a vehicle member may be supported after being raised, the stand being dissociateable from the raising and lowering device to take all the weight exerted...
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3857548 |
PANTOGRAPH-TYPE JACK
A pantograph-type jack comprising a plurality of upper jack arm assemblies each of which includes a pair of opposite jack arms having inner toothed ends pivoted to a movable load support member and...
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3816984 |
AIR FILTER HOUSING FOR FILTERING SUSPENDED SUBSTANCES
An housing having an air filter therein movable by means of a turnbuckle arrangement into sealing contact with a frame-like contact surface of the housing, the turnbuckle arrangement assuring a...
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3797819 |
SUPPORTING TABLE FOR PATIENTS
A supporting table for patients has between its base and the table plate a height raising and lowering mechanism which includes rods forming two parallelogram sections connected one behind the...
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3749365 |
PRIMARY OPENING APPARATUS
Apparatus for forming a primary opening in a collapsed roll of sheet stock. A first pair of longitudinally elongated shoes is arranged on opposite sides of a longitudinal axis which passes through...
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3746307 |
LOAD LIFTING JACKS
A load lifting jack comprising a pair of guide rails connected in parallel relation with each other by a pin and a connecting member at their both ends so that a rectangular frame is provided, a...
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3693937 |
LOAD LIFTING MECHANISM
A load lifting jack comprising a support member, a screw shaft rotatably located within the support member, a lifting arm supported at the substantially middle portion by a link and connected at...
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3679176 |
BELT TIGHTENING TOOL
A belt tightening tool for adjusting the tension in the belt of a belt and pulley drive assembly having an adjustably mounted pulley consisting of a pair of pulley saddles for bearing against the...
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3645501 |
AUTOMOTIVE JACK
A motor drives a threaded rod having a pair of hinged lever arms connected thereto. A pair of hinged lift arms are carried in notches in the terminal edges of the lever arms to increase the lifting...
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3532323 |
INTEGRAL NUT AND BRACKET
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