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Document |
Document Title |
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8136794 |
Tab winch for stage use
A winch with adjustable arms allowing the length to be adjusted. The winch can have a very thin drum to allow it to fit in confined spaces.
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8070134 |
Stabilized single-motor lift system without top rails
A lift system for raising and lowering a load including a rigid platform, four spaced fixed supports positioned around corners of the platform, and a power source connected to a first of the...
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8052123 |
Unified remote control operation of yacht winches
A power operated winch mechanism for handling the running rigging lines of a sailing yacht. The winch includes a winding drum, which winds and stores the line during line retrieving operations and...
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7909307 |
Tab winch for stage use
A winch with adjustable arms allowing the length to be adjusted. The winch can have a very thin drum to allow it to fit in confined spaces.
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7717402 |
Line handling winch for sailing yachts
A power or manually operated winch mechanism for handling the running rigging lines of a sailing yacht. The winch includes a winding drum, operating in conjunction with a level wind mechanism,...
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7712727 |
Air cushion vehicle bow skirt retraction system
A system and method retracts and lets-out a laterally extending flexible bow seal on an air cushion vehicle having a bow ramp. Attachment loops on the forward outside surface of the bow seal...
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7374126 |
Cable guide of a cable winch
A cable guide of a cable winch, such as a cable hoisting winch, includes a cable drum having at least one cable groove and a cable guide having at least two base segments expanding into a ring. The...
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7201365 |
Apparatus and a method for use in handling a load
Apparatus for use in handling a load where a load-bearing rope and a service cable are inter-wound as they are being paid out, having a wrapping device for wrapping a securing member around the...
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6592101 |
Hoist with shock absorbing device for the load
A shock absorbing device is provided for use on a hoist of the type generally used for safety of personnel entering a manhole or the like which has a base for mounting on a support surface at the...
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6086050 |
Apparatus for pulling a traction cable through an underground pipe
A pulling apparatus includes a frame having a securing stirrup for securing a beam. The beam is provided at one end with a return pulley. Due to the structure of the securing stirrup, the tractive...
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4921219 |
Powered sailboat winch
A power sailboat winch mechanism for the high speed gathering of running rigging line under initial low tension with final slow speed gathering of the same line under final high tension combined...
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4601633 |
Hoist
A hoist that includes a winding drum for a load-lift cable mechanism. The um has two drum sections of slightly different diameter; end portions of the cable are wound in different directions on the...
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4523645 |
Method of and apparatus for moving reeled material into and retrieving it from the upper end of a well bore in the earth's surface
Material is supported on rotatable reel means with one end extending therefrom for connection with a well string for a well bore. Movable means support the portion of material extending between the...
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4472180 |
Apparatus for withdrawing blood from a test tube or the like
Blood is transferred from a test tube having a supply of blood covered by a head of foamed blood into a second tube which is provided with a graduated scale and both ends of which are open. An...
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4438903 |
Obstacle detector for a descending or ascending load
An obstacle detector is disclosed, being designed to automatically brake a descending or ascending load suspended on at least two spaced cables, should an obstacle be encountered in the path of the...
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4364545 |
Well servicing apparatus
A suspension structure is disclosed for use in running well hardware such as a pumping assembly by cable into a well and pulling the hardware from the well, the structure including two suspension...
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4296819 |
Cable tensioner for a downcrowding device for earth boring machines
A downcrowding device for an earth boring apparatus has an improved take-up device for taking up slack in the downcrowding cable. The downcrowding device is of the type having a rotatable drum,...
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3967735 |
Cranes with look independent of sheave block
A crane is provided with a sheave-block, a winch for lifting and lowering the sheave-block, a crane hook, spring-loaded catches for demountably attaching the crane hook to the sheave-block, and a...
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3807697 |
HOIST OR THE LIKE
A compact electro-mechanical actuator is disclosed wherein a pair of coaxial winding drums, enclosing mechanism for oppositely and reversely driving them at equal but variable speeds, control a...
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3794298 |
HOISTING MECHANISM FOR ASCENDING AND DESCENDING A CABLE
A novel hoisting mechanism for ascending and descending a freely hanging, single strand of cable that includes a dual drive sheave-pressure wheel assembly combination which provides the safety of...
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3584838 |
ROOF HOISTS
A portable hoist capable of being moved from location to location with but little dismantling and comprising a simple frame with two cable drums geared together, two electric motors allocated...
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RE05204 |
Title is not available
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3313525 |
Hoisting apparatus
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3300187 |
Semi-automatic warping and mooring arrangement
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3227420 |
Apparatus for moving loads
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3226090 |
Materials handling arrangement
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