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A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 8020671 | Elevator installation, a guide rail of an elevator installation, brake equipment of an elevator installation and a method for guiding, holding and braking an elevator installation An elevator installation includes a guide rail and brake equipment for guiding, holding and braking the elevator installation. The brake equipment has a brake lining which co-operates with a brake surface, advantageously with the brake surface of the guide rail, for... | 09/20/2011 |
| 7849972 | Emergency stop device of elevator In an emergency brake device for an elevator, a pair of pivot levers are pivotably provided to a car. Each pivot member is provided with each of a plurality of wedges that can be brought into and out of contact with a car guide rail as the pivot member pivots. A con... | 12/14/2010 |
| 7419033 | Emergency brake device for elevator An emergency brake device for an elevator includes a brake shoe portion provided inside a sheave 1 or deflector sheave of an elevator and having a brake shoe 5a at a lower end of the brake shoe portion, the brake shoe generating a braking force ... | 09/02/2008 |
| 7413060 | Car fall-prevention apparatus An elevator fall-prevention apparatus includes a holding member, which is shaped approximately like a rectangular tube, secured to a base part of an elevator guide rail. The holding member supports a locking support member that is rotatable about a spindle from a st... | 08/19/2008 |
| 7258202 | Creation of temporary safety spaces for elevators The invention provides an elevator having a car movable along guide rails mounted in a shaft. The elevator comprises an inspection control station mounted on top of the car and accessible via a movable control station cover, blocking means for selectively preventing... | 08/21/2007 |
| 7225902 | Elevator In an elevator apparatus, a car that is raised and lowered within a hoistway has a car frame and a cage supported on the car frame. Chamfered portions are provided at corner portions of the cage. The car frame has vertical columns arranged along the chamfered portio... | 06/05/2007 |
| 7134529 | Safety device for an elevator A safety device includes a trigger mechanism for triggering a braking wedges attached to first and second double levers to stop an elevator car. A retaining spring detents with a pin on the first double lever and a tension spring engages either the first double leve... | 11/14/2006 |
| 7117979 | Method for preventing an inadmissibly high speed of the load receiving means of an elevator A method for preventing an inadmissibly high speed of a load receiving unit of an elevator, including the steps of supplying information about an actual position and an actual speed of the load receiving unit in an area of an entire travel way of the load receiving ... | 10/10/2006 |
| 7117978 | Dampening device for an elevator compensating cable and associated system and method A dampening device for a compensating cable operably engaged with an elevator car is provided, wherein the compensating cable includes two linear portions connected by an arcuate portion. A first guide including at least one roller member is disposed within the arcu... | 10/10/2006 |
| 7097003 | Elevator landing door broken chain safety device A vertically sliding freight elevator landing door with a safety brake that deploys when a chain suspending the door breaks. The safety brake is adapted for use on both panels that slide up to open or that slide down to open. The brake, which is simple in constructi... | 08/29/2006 |
| 7080717 | Emergency brake apparatus of elevator In an elevator emergency braking apparatus, a braking device main body has a main body braking surface facing a main rope and positioned at a first side of a main rope array, and a tapered surface facing the main body braking surface on an opposite side of the main ... | 07/25/2006 |
| 7077243 | Elevator installation with a buffer for creating a zone of protection in an elevator installation and a method of creating a zone of protection A buffer creates at least one zone of protection in an elevator installation including an elevator car and a counterweight movable along respective paths in an elevator shaft. The buffer has a movable portion movable into the path of the elevator car and/or into the... | 07/18/2006 |
| 7059451 | Load lowering system A system for mechanically lowering a load from an elevated position to a lower position in a relatively slow and controlled manner using only gravity and frictional forces. The system includes a vertically aligned glide rod, a glide collar that moves longitudinally ... | 06/13/2006 |
| 6796548 | Braking device and hoisting machine having same A braking device includes a brake wheel, a pair of rotation shafts, a pair of brake arms which is rotatably supported through the rotation shafts, a pair of brake pads arranged at one end of the brake arms and contacting and separating from the brake wheel, and a br... | 09/28/2004 |
| 6766883 | Driving apparatus for elevator A driving apparatus for an elevator includes rotary elements disposed in such a manner as to be in contact with a circumferential surface of an input shaft adapted to be rotationally driven by an electric motor device so as to rotate as the input shaft rotates, a cy... | 07/27/2004 |
| 6578672 | Driving apparatus for elevator A driving apparatus for an elevator includes rotary elements disposed in such a manner as to be in contact with a circumferential surface of an input shaft adapted to be rotationally driven by an electric motor device so as to rotate as the input shaft ro... | 06/17/2003 |
| 6516570 | Elevator hoistway An elevator hoistway for a multi-storied building which, to create a vertical travel path for an elevator installation, extends through at least one story floor and has at least one hoistway frame which bounds a hoistway penetration aperture in the story ... | 02/11/2003 |
| 6457569 | Rotary actuated overspeed safety device A rotary actuated overspeed safety device is provided for elevators. The overspeed safety device comprises a pair of pivotally mounted counterweights linked by a pivotally attached coupling rod and a wheel that rollably engages a guide rail. The counterwe... | 10/01/2002 |
| 6318507 | Emergency stop apparatus for elevator An emergency stop apparatus for an elevator having a simple structure as well as effectiveness, which may facilitate to reduce manufacturing and maintaining cost. The emergency stop apparatus for an elevator includes a pair of wedges for stopping the elev... | 11/20/2001 |
| 6315089 | Safety lock device with rotating clover mechanism A safety lock device including a clover mechanism mounted on a rotating shaft to be used with an unbalanced free-fall dog that precludes rotation of the rotating shaft upon rapid acceleration or excessive speed of the rotation of the shaft. The free-fall ... | 11/13/2001 |
| 6293376 | Apparatus including eddy current braking system Eddy current braking apparatus includes a linear array of spaced apart permanent magnets arranged for defining a slot therebetween. A diamagnetic or non-magnetic fin is disposed and sized for movement through the slot. A pivotal linkage enables the magnet... | 09/25/2001 |
| 6193026 | Elevator brake An elevator brake includes a fluid enclosure that provides a force to counter a braking force. In a particular embodiment, the fluid enclosure functions as a fluid pressure amplifier between a controllable actuator and a braking surface. The fluid enclosu... | 02/27/2001 |
| 6131703 | Safety device for a cable hoist A safety device for a platform cable hoist within a latticework tower including a plurality of skid members which are flexed inwardly when there is tension from a lift cable. Brake members are secured to the skid members and, in the event the cable fails,... | 10/17/2000 |
| 6053287 | Linear drive for transportation equipment An apparatus for moving a car along a travel path along guide rails includes a linear drive having a fixed first platform attached to the car and connected by springs with a movable second platform. Holding-units are attached to both platforms for engagin... | 04/25/2000 |
| 5648644 | Brake regulating apparatus for an elevator car An elevator brake regulating apparatus includes brake actuators, a source of pressured fluid and a brake regulating control connected between the actuators and the fluid source. A fastening housing is attached to a carrier frame of a elevator car and has ... | 07/15/1997 |
| 5601157 | Decklock A vertical reciprocating conveyor having an improved safety mechanism for automatically locking the conveyor at an elevated level. The conveyor comprises a cargo-supporting carriage which is guided for movement between a lower level and an upper level on ... | 02/11/1997 |
| 5402863 | Apparatus to automatically adjust spring tension of an elevator brake to maintain brake torque An elevator adjusting apparatus for adjusting a brake torque produced by a brake for braking travel of an elevator cage includes a brake torque adjustment mode setting unit for setting an adjustment mode for the brake torque, a cage position recognizing u... | 04/04/1995 |
| 5235144 | Linear motor driven elevator A linear motor driven elevator including in an elevator shaft, a fixed portion, an upper turning portion, and a lower turning portion. An ascending passage and a descending passage are sectionally formed between both turning portions in the fixed portion ... | 08/10/1993 |
| 5217091 | Mechanical overspeed safety device An overspeed device is provided for an elevator system having an elevator car for travel within a hoistway along a guiderail. The elevator includes a governor rope running from an upper sheave at the top of the hoistway to a governor sheave at the bottom ... | 06/08/1993 |
| 5202539 | Emergency brake apparatus for an elevator An additional emergency brake apparatus is provided for an elevator installation which contains a car, counterweight, hoist ropes, drive sheave, motor, brake and elevator car safety. This additional emergency brake apparatus acts directly at the drive she... | 04/13/1993 |
| 5183979 | Elevator governor rope restraint when elevator car moves with car doors open The governor rope on an elevator is provided with an auxiliary brake which is a fail-safe brake and which operates to stop movement of the governor rope when the elevator car moves away from a landing with its doors open. The brake includes two rope gripp... | 02/02/1993 |
| 5183978 | Elevator governor rope block actuation in low speed emergency situations The governor ropes on an elevator are actuated by an emergency tripping system when motion away from a landing zone of the car is detected while the car doors remain open. If the elevator controller receives a "door open" signal and a "car moving out of l... | 02/02/1993 |
| 5153389 | Two stage electromagnetic braking device for an elevator An electromagnetic brake for arresting the rotation of a driving shaft of an elevator includes a pair of brake shoes and a pair of plungers operated by separate solenoidal coils. Each plunger is in communication with a corresponding break shoe. A brake co... | 10/06/1992 |
| 5014828 | Electromagnetic brake with clamping jaws The electromagnetic brake comprises an electromagnet and a movable armature attracted by this electromagnet when the latter is energized and separated from the latter by spring means when the electromagnet is not energized. The electromagnet and the armat... | 05/14/1991 |
| 4249640 | Corner post platform assembly A corner post platform assembly for supporting an elevator cab having door openings in two adjacent wall portions, including a safety brake assembly, a support frame, and a floating platform. The safety assembly includes mounting plate members at its oppo... | 02/10/1981 |
