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"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 7293524 | Indicator device for indicating whether a no-back device is operable An indicator device for use in indicating whether or not a no-back device is operable, the indicator device comprising an indicator member 42 moveable between a first position and a second position, a biassing arrangement 56 being provided to urge the ... | 11/13/2007 |
| 7168533 | Rotor brake as well as rotor and rotary-wing aircraft with such a rotor brake A rotor brake includes a braking force absorption element non-rotatably connected to a rotor shaft; a stationary brake actuator for actuating a braking force transmission element that is functionally coupled to the braking force absorption element so as to exert a b... | 01/30/2007 |
| 6983829 | Motor actuated park brake for a vehicle The problem of reliably locking an electrically actuated park brake is resolved through the use of a jaw-tooth clutch operatively installed between the shaft and the housing of a drive motor, for engaging the brake. The brake may be locked and unlocked by selectivel... | 01/10/2006 |
| 6929105 | Fully filled wet clutch with hydrodynamic cooling A fluid clutch includes a housing having an interior that can be filled with fluid, an output element that can be rotated relative to the housing, a first friction surface arrangement coupled to the housing, a second friction surface arrangement coupled to the outpu... | 08/16/2005 |
| 6923295 | Friction brake The present invention relates to a friction brake, in particular a disc brake, for a motor vehicle with a friction element, e.g. a brake disc, coupled to the rotation of a vehicle wheel, forming a friction pairing of the friction brake with at least one associated b... | 08/02/2005 |
| 6877594 | Disc brake to be opened by torque A disc brake to be opened by torque is arranged between a drive shaft and a driven shaft and comprising a brake wheel arrangement arranged between the drive shaft and the driven shaft, a friction surface arrangement arranged to co-operate with the brake wheel arrang... | 04/12/2005 |
| 6615958 | Integrated aircraft wheel, brake and axle for all-electric aircraft braking system An integrated wheel, brake and axle structure for an aircraft comprises a tubular axle, and a wheel hub rotatably mounted interiorly of the tubular axle and accessible at an axial end thereof for mounting of a wheel thereto. A brake disk stack, having fro... | 09/09/2003 |
| 6508336 | Reduced drag wet disc brake assembly A disc brake assembly includes a stationary member, a rotating member defining an axis of rotation, a plurality of stationary discs spaced axially along the axis of rotation within the stationary member, and a plurality of movable discs interspaced with t... | 01/21/2003 |
| 6352140 | Disc brake to be opened by torque The invention relates to a disc brake to be opened by torque, the disc brake being arranged between a drive shaft (3) and a driven shaft (11) and comprising a brake wheel (12) arranged on the driven shaft (3) non-rotatably in the peripheral direction; a f... | 03/05/2002 |
| 6305505 | Reduced friction wet disc brake An improve wet disc brake incorporates a two part rotating disc. One of the two parts is selectively rotatable, and the other part is constantly rotating with the rotor. The rotor carries an air supply which creates an air bearing between the constantly r... | 10/23/2001 |
| 6082504 | Friction brake device utilizing dual ball ramp devices A friction brake assembly for applying a braking torque to a rotating shaft such as a transmission output shaft utilizing a primary ball ramp mechanism having a control ring and activation ring with opposed variable depth grooves and rolling members dispo... | 07/04/2000 |
| 6039158 | Powered locomotive parking brake A power-actuated parking brake is provided that produces sufficient force to set a parking brake for a locomotive. A powered drive train rotates a sheave over which a brake chain is positioned. Rotation of the sheave draws up the brake chain that is conne... | 03/21/2000 |
| 5586734 | Spinning reel having an anti-reverse mechanism A spinning reel has a rotor mounted forwardly of a reel body, and an anti-reverse mechanism for preventing the rotor from rotating in a line unwinding direction. The anti-reverse mechanism includes teeth formed on an element rotatable with the rotor, and ... | 12/24/1996 |
| 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 |
| 5547140 | Spinning reel having an anti-reverse mechanism A spinning reel has a rotor mounted forwardly of a reel body, and an anti-reverse mechanism for preventing the rotor from rotating in a line unwinding direction. The anti-reverse mechanism includes teeth formed on an element rotatable with the rotor, and ... | 08/20/1996 |
| 5485969 | Reverse rotation preventive mechanism for fishing reel A reverse rotation preventive mechanism for preventing the reverse rotation of a rotor of a fishing reel. A frictional engagement member and a disk are provided for preventing the reverse rotation of the rotor with their mutually contactable surfaces havi... | 01/23/1996 |
| 5388669 | Brake actuator with electromagnet, cam, and hydraulic piston components A disk brake having an electromagnetic friction clutch that can be brought into controllable frictional engagement with a brake disk. The friction clutch can act on a device for generating hydraulic pressure independent of the direction of rotation, and t... | 02/14/1995 |
| 5358036 | Safety disc brake assembly A relatively simple hydraulically operated disc brake mechanism for drive systems which store reactive torque by reason of being under torsion is disclosed. Certain drive systems such as the drive strings for deep well submersible pumps store considerable... | 10/25/1994 |
| 5322146 | Friction brake for vehicles A disk brake has an electromagnetic friction clutch that is brought into controllable frictional engagement with a brake disk. The friction clutch is in form-fitting rotational engagement with a piston of a clamping device for the friction linings associa... | 06/21/1994 |
| 4949824 | High production, torque limiting, one-way clutch A torque limiting one-way clutch assembly including a bearing housing having a central bore and a number of grooves around the bore, each groove including a recess at one end, a ramp inclined toward the recess, a roller in each of the grooves, a spring as... | 08/21/1990 |
| 4848522 | Safety device to prevent accidental unwinding of a rolling shutter or rolling overhead door wound on a shaft A safety device for preventing accidental unrolling of a rolling shutter or overhead door comprising a cogwheel which has uniformly distributed on the circumference opening outward for containing radially movable tumblers, a cage which surrounds the cogwh... | 07/18/1989 |
| 4846313 | Fall-arrest apparatus A fall-arrest apparatus comprises a cable drum (2) and a friction brake including a rotatable brake disc (14) which is pressed against a stationary brake ring (15). In the event that the drum accelerates in the unwinding direction to a certain speed, pawl... | 07/11/1989 |
| 4804150 | Apparatus for measuring the drag-force of a fishing reel A drag force measuring apparatus for fishing reels wherein a drag device is provided for imparting an undetermined drag force to a fishing-line carrying spool as estimatedly decided by a fisherman based on considerating involving the character of the line... | 02/14/1989 |
| 4762205 | Flight control surface actuator for aircraft including remote braking failure detection An actuator system for positioning a flight control surface on an aircraft in which a primary braking device provides a continuous braking action to the actuator screw shaft by means of a load bearing disc brake wheel and a pair of rachet wheels contiguou... | 08/09/1988 |
| 4717087 | Apparatus for continuously supplying a web of sheet material Apparatus for drawing a web of sheet material from a roll wound on a core which is supported to rotate freely about its axis as the web is drawn off the roll. A brake has a movable element connected to a shaft which is rotatable about the axis of the core... | 01/05/1988 |
| 4667779 | Unidirectional high gain brake stop This invention relates to a unidirectional high gain brake arrangement that includes in combination a shaft mounted for rotation within a housing. The shaft is rotatable in either direction. A brake is selectively releasably coupled to the housing and to ... | 05/26/1987 |
| 4657120 | Flywheel mechanisms for anti-skid braking systems In a flywheel mechanism of the axially expanding type a clutch plate which is rotatable with a shaft and from which the mechanism is driven, is provided on pitch circles of greater and smaller diameters with outer and inner clutch faces with which complem... | 04/14/1987 |
| 4640397 | Electromechanical friction brake for actuating and stopping a rotating element in predetermined positions An electromechanical friction clutch and brake unit is disclosed for actuating and stopping a rotating element for example, an actuating shaft of the needle of a sewing machine. The clutch and brake unit has inside it a plurality of friction elements whic... | 02/03/1987 |
| 4616888 | Safety brake for mobile storage apparatus A mobile storage system includes a safety brake for smoothly stopping a moving carriage. The brake is operated from readily assessible positions in the aisles between carriages, thus minimizing the risk of injury to persons in the aisles if another person... | 10/14/1986 |
| 4567965 | Propeller brake A propeller brake for an engine having a propeller shaft includes a housing (10) and a brake shaft (18) rotatably mounted in the housing (10). The brake shaft (18) is coupled to the propeller shaft to rotate therewith. Also included is a brake (64,74) and... | 02/04/1986 |
| 4513843 | Railway car retarder for shunting purposes A brake or retarder for braking rolling railway cars preferably for shunting purposes incorporates an actuating member adapted to be given a movement by a passing railway car wheel, which movement via a speed-dependent coupling is transferred to a mechani... | 04/30/1985 |
| 4432440 | Electrically actuated aircraft brakes Apparatus for electrically controlling the application and release of aircraft brakes. In one embodiment, the invention includes a slurry clutch controlling a reciprocating member which is operatively connected to the pressure plate. In another embodiment... | 02/21/1984 |
| 4408746 | Hydraulically actuated winch assembly A hydraulically actuated winch assembly having a dual planetary gear system for driving a common ring gear from a power input shaft. Power from the shaft is divided through the two planetary gear systems for driving the common ring gear which is attached ... | 10/11/1983 |
| 4216848 | Centrifugal braking device Centrifugally activated members adapted to project outwardly by centrifugal forces when the rotational speed of a shaft to be braked reaches a predetermined level are brought into contact with a brake shoe to impart a rotational force thereto. When rotate... | 08/12/1980 |
| 4170350 | Mail handling apparatus A noise and impact reduction arrangement for a mail handling system wherein successive mail pieces of varying thicknesses may be fed to and through a mail processing work station in an efficient and rapid manner. The arrangement includes a feed assembly w... | 10/09/1979 |
| 4128145 | Combination failsafe brake and one-way clutch A combination fluid power disc brake and one-way clutch unit is offered. An inner shaft is journalled in a stationary housing, and an outer shaft is journalled upon the inner shaft. A one-way clutch between the shafts causes the inner and outer shafts to ... | 12/05/1978 |
| 4044868 | Slipping coupling for a recording and/or playback apparatus A slipping clutch which comprises a first sliping clutch section and, coaxial therewith, a second slipping clutch section pivotably journalled to a counter-bearing. An annular bearing part is coaxial with the second slipping clutch section so as to allow ... | 08/30/1977 |
| 4010827 | Clutch engaged brake mechanism A friction brake includes a clutch device operable to connect friction plates to a rotary shaft so that they rotate with the shaft when the brake is to be operated by engaging said friction plates with a set of stator plates interleaved therewith.... | 03/08/1977 |
| 3990792 | Reciprocating movement control device In a copying apparatus having an original carriage and an optical system, a reciprocating movement control device comprises a drive source for driving a photosensitive medium and drive transmission means effective only during forward movement to transmit ... | 11/09/1976 |
| 3986588 | Brake-clutch assembly for a winch An automobile mounted winch having a clutch-brake assembly comprising a disc shaped ratchet plate positioned between two friction shoes, acting as a clutch in one direction and a speed governor in another direction, and a stationary brake. A plurality of ... | 10/19/1976 |
