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| Number | Title | Issue Date |
| 7401765 | Winching and drawing machine A winching and drawing machine comprises a drive shaft for driving a load sheave, a pressure receiving member fitted onto the drive shaft, brake plates installed in contact with the pressure receiving member and fitted onto the drive shaft, a pawl wheel interposed b... | 07/22/2008 |
| 7384023 | Capstan anti-reversing pawl An anti-reversing pawl mechanism is claimed that includes a pawl that is engaged by a flexible coupling but that is also biased toward a driven member such that when the engagement of the flexible coupling is removed, the pawl engages the driven member and stops it ... | 06/10/2008 |
| 7159852 | Manual marine winch internal gearing A manual swivel winch of the present invention includes internal drum gearing. The winch has a pair of spaced side plates, a rotating drum supported between the side plates, an internal drum gear coaxially mounted with the rotating drum, and a pinion drive gear enga... | 01/09/2007 |
| 7128307 | Manual marine winch with compound handle A manual swivel winch includes safe loading mechanism. The winch has a pair of spaced side plates, a rotating drum supported between the side plates, a drum gear coaxially mounted with the rotating drum, a pinion drive gear engaging and rotating the drum gear, and a... | 10/31/2006 |
| 6726182 | Manual winch with dual locking dogs A manual winch with dual locking dogs is designed to be easily retrofitted into existing winches. The design of the winch includes a housing supporting a rotatable drum upon which the cable is reeved. A pair of gears are attached to the drum with locking dogs that m... | 04/27/2004 |
| 6431525 | Pawl and ratchet assembly for winch mechanism A winch mechanism that is capable of sustained, heavy load operation comprises a frame, a ratchet, and a pawl for cooperative engagement with a pinion and a drum gear. The frame includes a plurality of apertures positioned proximate to the pawl axle, one ... | 08/13/2002 |
| 6116580 | Reversible winch ratchet mechanism A mechanical winch includes a ratchet lever having a single pawl which may be positioned in either one of two orientations in order to preclude clockwise or counterclockwise movement of the winch, drum or reel. In each orientation, the ratchet lever may a... | 09/12/2000 |
| 5954285 | Driving arrangement for a motorized fishing reel A driving arrangement for a motorized fishing reel has a first or driving gear, a second larger gear, a third or pinion gear, and a fourth gear. The driving gear is mounted to and driven by a shaft of a motor. The second gear is meshed with and driven by ... | 09/21/1999 |
| 5921529 | High line pull winch assembly A hydraulic winch which is capable of generating significant amounts of torque and providing very high line pull even after a significant amount of cable is wrapped onto its spool. The winch spool is also capable of carrying a large amount of thick cable.... | 07/13/1999 |
| 5647576 | Chain lever hoist The most commonly used spring type chain lever hoists suffer from a major drawback in that, if the chain is drawn quickly over the load sheave while it is set for free running operation, the brake will automatically be applied and the free running movemen... | 07/15/1997 |
| 5570872 | Free-rotation control apparatus of hoist and traction machine In a hoist and traction machine including a free rotation control apparatus, a free-rotation spring 19, for urging an operating handle 18 toward a driving member 8 and also urging the driving member 8 in the brake releasing direction, is interposed betwee... | 11/05/1996 |
| 5556078 | Manual hoist and traction machine A manual hoist and traction machine wherein an outer diameter of a first lining plate constituting a mechanical brake is made smaller than an inner diameter of a driven disc of a handwheel. The outer diameter of a second lining plate and of a driven disc ... | 09/17/1996 |
| 5538222 | Chain lever hoist The most commonly used spring type chain lever hoists suffer from a major drawback in that, if the chain is drawn quickly over the load sheave while it is set for free running operation, the brake will automatically be applied and the free running movemen... | 07/23/1996 |
| 5421553 | Lever-type winch idler device An idler device is for use in a lever-type winch having a brake including a hub fixed to a pinion shaft, an actuating member mounted on a threaded portion of the pinion shaft, and a ratchet wheel and two brake plates interposed between the hub and the act... | 06/06/1995 |
| 5305989 | Hoist and traction machine with free rotation control A hoist and traction machine having a mechanical brake, in which an operating handle is non-rotatably and axially movably interposed between a stopper provided at an axial end of a driving shaft and a driving member screwable with the driving shaft. Betwe... | 04/26/1994 |
| 4819913 | Lever type hoisting machine A lever type hoisting machine capable of easily and securely pulling down a lower hook in no-load state. An operation wheel is rotatably supported in contact with a drive shaft and a pressure drive wheel, and an inside collision part and an outside collis... | 04/11/1989 |
| 4771988 | Lifting apparatus for heavy folding doors A single, telescopic tubular steel pole is supported by an elongated steel channel base having rubber wheels on each end. The pole is leaned and supported against the top of a door opening in a building by means of a removable top frame having a longitudi... | 09/20/1988 |
| 4768754 | Manual hoist with overload preventer A manual hoist with overload preventer wherein rotation in the winding direction under overload is automatically arrested; however, when an overload develops after hoisting or pinching of a load, unwinding is possible. The apparatus includes an operation ... | 09/06/1988 |
| 4725043 | Winch A winch has four drive trains of progressively increasing mechanical advantage between its drive shaft (3) and drum (8). If a selector (40) is engaged, rotation of the shaft in successively opposite senses will cause automatically engagement of the first ... | 02/16/1988 |
| 4699360 | Automatic three-speed winch An automatic three-speed winch comprising a base plate (1), a bollard (2) mounted for rotation relative to said base plate and carrying teeth (7) on its inner surface, arranged to cooperate through intermediate gears, with at least one driving gear (5, 6)... | 10/13/1987 |
| 4693453 | Cable drum latching and unlatching mechanism A cable winding drum is provided with a ring gear having internal gear teeth and external ratchet teeth, and the drum and gear are supported in a housing for rotation in opposite directions about a drum axis to achieve winding and unwinding of a cable rel... | 09/15/1987 |
| 4664357 | Overload avoiding arrangement for a hoist In a hand hoist in which a driven member 15 and a biasing drive member 16 are threaded onto a driving shaft 11, an overload avoiding arrangement for the hoist, which is so arranged that a manually rotated member 21 is supported by a support frictional sur... | 05/12/1987 |
| 4512555 | Idling device for lever hoist An idling device is able to bring into an idling condition a lever hoist including a change gear provided on driving member threadedly engaged on a driving shaft for driving a sheave winding-up thereabout a chain or rope for a load, an operating lever roc... | 04/23/1985 |
| 4483519 | Idling device for lever hoist An idling device is able to bring into an idling condition a lever hoist including a change gear provided on driving member threadedly engaged on a driving shaft for driving a sheave winding-up thereabout a chain or rope for a load, an operating lever roc... | 11/20/1984 |
| 4474360 | Idling device for lever hoist An idling device is able to bring a lever hoist into an idling condition including a change gear provided on driving member threadedly engaged on a driving shaft for driving a sheave for winding-up a chain or rope for a load, an operating lever rockably d... | 10/02/1984 |
| 4469308 | Lever hoist A lever hoist comprises a change gear provided in a driving shaft for driving a sheave for winding-up a chain or rope for a load, an operating lever rockably driven by a hand, winding-up and winding-off driving pawls engageable with teeth of the change ge... | 09/04/1984 |
| 4468005 | Lever hoist A lever hoist comprises a change gear for driving a sheave for winding-up a chain or rope for a load, an operating lever rockably driven by a hand, winding-up and winding-off driving pawls engageable with teeth of the change gear and changeable in respons... | 08/28/1984 |
| 4456227 | Dual-handled winch A dual-handled manual winch has a ratchet wheel meshing constantly with a pawl and which is automatically frictionally locked to a drive pinion for the winch drum when the drum starts to overrun. The drive pinion is threaded into a drive shaft on the ends... | 06/26/1984 |
| 4420144 | Manual hoisting and pulling apparatus A hand hoist or pulling apparatus including a drive clutch assembly, and a drive shaft and transmission gears associated with the assembly for pulling a chain on a load sheave by oscillating a lever. A holding member and a stop lever for preventing the me... | 12/13/1983 |
| 4213579 | Fishing reel A fishing reel is disclosed wherein the spool thereof is rotatably and longitudinally slidable on a shaft rotatable via the handle used to rewind the reel. The spool is hollow and engages the shaft via a portion having radial teeth formed on both sides th... | 07/22/1980 |
| 4130176 | Combination safety belt and safety line A safety belt for preventing injury to persons working in high places. The belt has straps for attachment to a window frame, scaffold or derrick or other supporting surface such as a ship's deck or hull. A housing secured to the forward portion of the bel... | 12/19/1978 |
| 4106754 | Cable hauling winch This invention is for a winch having a drum for receiving a line. There are two species of the winch. In the first specie, the winch comprises a drum gear and a drum ratchet. There is a driving means for driving the drum gear and the drum. Also, there is ... | 08/15/1978 |
| 3985342 | Portable hoist This invention relates to a reversible hand operated device having equal utility as a hoist, winch or puller. It features a unique finger operated control housed in an opening of the operating lever of said device, which control may be smoothly shifted fr... | 10/12/1976 |
| 3973755 | Hand operated winch In a multi-speed winch which has automatic uncoupling of a first drive ratio when drive input is reversed, an actuator can have an uncoupling position or one in which the first drive ratio is engaged. The actuator is resiliently urged towards the latter p... | 08/10/1976 |
| 3955792 | Valve actuator mechanism An actuating mechanism for a movable valve member which is spring biased toward a first valve position. A cable is coupled at one portion thereof to the movable valve member and is wound about a drum on another portion thereof. The drum winds the cable th... | 05/11/1976 |
| 3939729 | Pawl and ratchet construction for hand winch The present invention is related to an improvement in a double-acting ratchet and pawl for controlling the operation of a hand winch. The pawl is pivotally mounted and engageable in two different positions with a driving gear which in turn is engaged with... | 02/24/1976 |
