A tool for replacing an escalator drive shaft comprises a first tool and a second tool. One side of the first tool is adapted to be assembled on an original shaft adapter, and the other side of the first tool is adapted to be assembled on a new shaft adapter. The second tool is adapted to be assembled on the first tool. A central axis of the first tool coincides with a central axis of the original shaft adapter, a central axis of the second tool coincides with the central axis of the first tool, and the central axis of the first tool coincides with a central axis of the new shaft adapter. A positioning reference of the original drive shaft is accurately transferred to the new drive shaft by the first and second tools, so that the new drive shaft may be accurately assembled to the position of the original drive shaft with respect to the truss after replacement.

A tool for replacing an escalator drive shaft comprises a first tool and a second tool. One side of the first tool is adapted to be assembled on an original shaft adapter, and the other side of the first tool is adapted to be assembled on a new shaft adapter. The second tool is adapted to be assembled on the first tool. A central axis of the first tool coincides with a central axis of the original shaft adapter, a central axis of the second tool coincides with the central axis of the first tool, and the central axis of the first tool coincides with a central axis of the new shaft adapter. A positioning reference of the original drive shaft is accurately transferred to the new drive shaft by the first and second tools, so that the new drive shaft may be accurately assembled to the position of the original drive shaft with respect to the truss after replacement.

The present invention is a device for moving people or items on the Jewish Sabbath and certain Jewish holidays in a manner that is widely acceptable within Jewish Law through powering and controlling this invention with municipal water. The invention includes applying this technology to elevators, escalators, dumbwaiters, conveyors, stair lifts, porch lifts, and more. Within the invention are certain components and groups of components that are unique in their arrangement and purpose.

A polygon compensation coupling system (30; 40; 60) comprises a first rotatable element (31; 41; 61), a second rotatable element (32; 42; 62a, 62b), and at least one linkage coupling the first rotatable element (31; 41; 61) with the second rotatable element (32; 42; 62a, 62b). The linkage comprises at least one first coupling element (34a; 44a; 64a) pivotably coupled to the first rotatable element (31; 41; 61) and at least one second coupling element (34b; 44b; 64b) pivotably coupled to the second rotatable element (32; 42; 62b). The first and second coupling elements (34a, 34b; 44a, 44b; 64a, 64b) are pivotably coupled to each other at a hinge point, the hinge point is configured to move along a compensation curve varying the coupling between the first rotatable element (34a; 44a; 64a) and the second rotatable element (32; 42; 62b).

A people conveyor (2) comprises at least one belt (4) extending in a longitudinal conveying direction, a plurality of webs (6) attached to the belt (4), and a plurality of transportation elements (14). Each of the transportation elements (14) comprises at least one connection portion (20). The connection portions (20) extend laterally from the transportation elements (14) and are configured for being connected with at least one of the webs (6) for attaching the respective transportation element (14) to the belt (4).

A passenger conveyor (10) comprises a plurality of treads (16) interconnected to form an endless tread band (17), the passenger conveyor (10) comprising a chain and sprocket drive system including at least two drive sprockets (24a, 24b), each drive sprocket (24a, 24b) drivingly coupled to a respective drive chain (20a, 20b), each drive sprocket (24a, 24b) having a predetermined number of drive sprocket teeth (38a, 38b) positioned at a predetermined drive sprocket teeth pitch (αa, αb) with respect to each other, wherein the drive sprockets (24a, 24b) are configured to rotate with the same angular velocity, but at a predetermined phase difference (β) with respect to each other.

A structural health monitoring system is provided. The system includes a drive system having a first drive member a second drive member 38 operationally connected to the first drive member, and a tension member 39 operationally connecting the first drive member to the second drive member. At least one sensor 50 is configured to monitor a characteristic of at least one of the first drive member and the second drive member. A processor 54, in communication with the at least one sensor, is configured to determine if the structural health of the tension member is compromised based on the monitored characteristic. The processor is further configured to perform a safety response action when the structural health of the tension member is determined to be compromised.

A structural health monitoring system is provided. The system includes a drive system having a first drive member a second drive member 38 operationally connected to the first drive member, and a tension member 39 operationally connecting the first drive member to the second drive member. At least one sensor 50 is configured to monitor a characteristic of at least one of the first drive member and the second drive member. A processor 54, in communication with the at least one sensor, is configured to determine if the structural health of the tension member is compromised based on the monitored characteristic. The processor is further configured to perform a safety response action when the structural health of the tension member is determined to be compromised.

A fixing module (2) for fixing a pallet (8) of a pallet conveyor, in particular a people conveyor, to a pallet chain (40; 50; 90) comprises a pallet side (4) comprising a connection portion (6), which is configured to be fixed in a non-rotatable manner to a pallet (8) of a pallet conveyor; a pallet chain side (10), which is configured for facing the pallet chain (40; 50; 90) and for receiving at least one fixing element (47) protruding from the pallet chain (40; 50; 90); and a securing mechanism (12, 14, 16), comprising at least one moveable securing element (12) which is configured for securing the at least one fixing element (47) within the fixing module (2) so that the fixing module (2) is non-rotatably fixed to the pallet chain (40; 50; 90).

A pallet conveyor (70), in particular a people conveyor, comprises a plurality of pallets (8) interconnected to form an endless pallet band which is moveable in a conveying direction, and a pallet chain (50) drivingly coupled to the pallet band. The pallet chain (50) comprises a plurality of pallet chain links (42; 44); the pitch of the pallet band is larger than the pitch of the pallet chain (50); and each pallet is (8) non-rotatably connected to or integrally formed with at least one of the pallet chain links (42; 44).