In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 7793593 | Hinged gantry crane A gantry crane comprising a bridge communicating with a trolley. The two ends of the bridge are connected to a main column whose lower end is connected to rollers. Various hinged joints allow for movement of the components towards and away from each other which allo... | 09/14/2010 |
| 7793594 | Crane The invention is directed to a crane which comprises a traveling gear which comprises a plurality of traveling gear groups for moving along rails, each traveling gear group having at least two wheels which are rotatably mounted at a subframe so as to be spaced apart... | 09/14/2010 |
| 7597050 | Crane return A crane return system is used for returning a crane component to a home position when there is a loss of power. A crane includes a bridge with a plurality of main wheels adapted to travel along at least one rail. The crane return system includes a plurality of auxil... | 10/06/2009 |
| 7493864 | Carriage and gantry comprising such a carriage A carriage is intended to be disposed transversely between essentially-parallel lateral girders. The carriage comprises stirrups that are disposed at the lateral ends and which each cooperate with a lateral girder in order to enable the movement of the carriage alon... | 02/24/2009 |
| 7320377 | Mobile conveying vehicle The present application relates to a mobile conveying vehicle comprising axles rigidly arranged on a support frame, an operator's cabin and a series of units and additional unit parts such as an engine, pumps, a radiator, hydraulic tank and/or fuel tank. In accordan... | 01/22/2008 |
| 7213971 | Linear roller bearing with roller body orientation A linear roller bearing has a guide rail extending in a longitudinal direction; a guide carriage which is guided longitudinally displaceably on the guide rail; at least two revolving rows of roller bodies, by means of which the guide carriage is guided on the guide ... | 05/08/2007 |
| 7028433 | Aseismatic device An aseismatic device applied to an overhead hoist transport (OHT) system in a fab has a spring pin and a positioning ball installed in a cavity of a first platform. The spring pin has at least a spring for fixing the positioning ball and is mounted on a second platf... | 04/18/2006 |
| 7025555 | Sweep auger with drive assembly A sweep auger having an auger that is rotated about its longitudinal axis by a power means and a drive assembly having at least three reduction gears that operatively connect the auger to a drive wheel such that the drive wheel rotates at a speed that is substantial... | 04/11/2006 |
| 6733635 | Method of repairing a coke oven buckstay and a moving device for use in such method A coke oven buckstay moving device and method which can be used to quickly, reliably, and smoothly repair buckstays compared to conventional methods and devices. The coke oven buckstay moving means includes a main car, a subcar, a frame, and securing means. The main... | 05/11/2004 |
| 6622877 | Overhead crane with adjustable bearing assemblies An overhead crane having an adjustable bearing assembly to adjust a wheel and axle of the crane in a horizontal direction in order to minimize skewing of the crane on a pair of parallel rails. A bearing retainer includes an outer surface sized to fit into... | 09/23/2003 |
| 6367390 | Seismic isolation system for a crane A seismic isolation system is provided with a swing bearing ring consisting of an upper ring and a lower ring, which are rotatable relatively, between a crane body and a traveling means. A lower vertical shaft of a block pivotally supported on saddles of ... | 04/09/2002 |
| 6089164 | Gantry system A gantry system is provided, the gantry system having a gantry cross member supported by at least two essentially parallel support beams supporting the cross member, the axis of movement of the cross member being essentially perpendicular to the at least ... | 07/18/2000 |
| 5992730 | Method for assembling a trolley for an overhead traveling crane A trolley having an inner assembly and trolley sides is assembled by placing the components of the inner assembly in a welding fixture, welding the inner assembly components together, and welding the inner assembly to the trolley sides. The use of the fix... | 11/30/1999 |
| 5934199 | Apparatus for temporarily increasing the load-bearing capacity of bridge girders An apparatus for temporarily increasing the load-bearing capacity of bridge girders during assembly work includes supports with deflection pulleys that are placed in the vicinity of bracing points. A relief cable is made taut over the deflection pulleys a... | 08/10/1999 |
| 5799581 | Articulating suspension system for a bridge of an overhead bridge crane An articulating suspension for the bridge of an overhead bridge crane allows the bridge to be skewed from perpendicular to the parallel runs that support the bridge. The runs are allowed to pivot toward each other on pivot axes above and parallel with eac... | 09/01/1998 |
| 5791257 | Overhead crane with adjustable bearings An overhead crane adapted to be supported on a pair of spaced apart, generally parallel first and second rails, the crane having a frame having opposite first and second ends, a first wheel rotatably mounted on the first end of the frame, the first wheel ... | 08/11/1998 |
| 5694857 | Truss for overhead bridge crane An overhead bridge crane truss having a channel connected to a support beam by vertical connectors is improved in strength by adding wide braces at end regions of the truss, without significantly increasing truss weight or cost. The wide braces are rectan... | 12/09/1997 |
| 5623879 | Travelling mechanism for hoisting equipment A travelling mechanism for hoisting equipment, especially for hoisting equipment which runs on monorail flange beams that have, along with straight sections, elevated and/or laterally curved sections. The travelling mechanism has side shield members locat... | 04/29/1997 |
| 5575220 | Side roller assembly for gantry crane bridge wheels A gantry truck assembly for rolling on a rail (16) where the rail has a top rail surface (42) and a side rail surface (48). The truck has a wheel (38) for rolling on the top rail surface. A flange (44) extends radially from the wheel and can contact the s... | 11/19/1996 |
| 5289780 | Material handling railroad freightcar-mounted gantry and crane with toppling prevention and supplemental support upon derailment A gantry adapted for operation along rails attached to the top of a railroad car includes two pairs of wheels, each pair operating on a respective rail. A base support member is positioned above the rail and between the wheels on each side of the gantry. ... | 03/01/1994 |
| 5076450 | Method and apparatus for reduced radius turning for large rail mounted cranes Method and apparatus for reduced radius turning for large cranes mounted on curved sections of rails or track which is effected by lifting the outboard sets of wheels of the crane supporting bogies which are located at the corners of the cranes disposed o... | 12/31/1991 |
| 4875415 | Rotary jack assembly for a crane There is disclosed a rotary jack assembly which comprises a rotary frame assembly having first and second frames each having frame receiving members, a plurality of pairs of wheel frames are provided under the first frame receiving members at points above... | 10/24/1989 |
| 4836111 | Three dimensional movement of a robot manipulator A system for moving a robot manipulator being mounted on a carriage over a track system which includes a pair of rail carriers for rails and being interconnected to extend parallel to each other in spaced apart relationship; a carrier carriage runs on the... | 06/06/1989 |
| 4773691 | Adjustable wheel mount in crane carriages A crane wheel is adjustably mounted in the web structure of a crane carriage, head carrier, or the like by a bearing holders on each side of the wheel. The bearing holders are individually, pivotably fixed to the web structure by aligned clamping sleeves ... | 09/27/1988 |
| 4576100 | Crane for nuclear waste handling facilities A crane for use in a nuclear waste handling facility is disclosed. The crane includes a bridge of sufficient transverse dimension to span the width of the area being serviced, a bridge drive for moving the bridge along spaced rails extending longitudinall... | 03/18/1986 |
| 4550664 | Track wheel block A track wheel has an axially extended hollow hub with internally directed gear teeth capable of receiving an outer toothed driving shaft. The hub is supported by roller bearings in a bearing box from which the wheel may not be inadvertently removed once t... | 11/05/1985 |
| 4503984 | Telfer carriage The invention concerns a telfer carriage comprising dual end supports a supporting beam, hoisting and displacing machinery and a rope drum. To the end supports has been pivotally affixed the supporting beam lying immediately beside the rope drum and paral... | 03/12/1985 |
| 4421242 | Panel locator A panel locator for moving bundles of panels from one place to another on a roof includes a base section movably mounted on roof purlins, and a tower section extending upwardly from the base section, and a boom section pivotably mounted on the tower secti... | 12/20/1983 |
| 4402414 | Means for distributing load uniformly to wheels An assembly to distribute an extremely heavy load uniformly to wheels when the load is moved slowly on irregular rails. Balancelike distribution links are pivotally mounted on a slewing frame as a truck at certain intervals, and another balancelike distri... | 09/06/1983 |
| 4385562 | Traveling crane with top girders at the end of a bridge girder The disclosure is directed to the construction of a traveling overhead crane, to enable a desired high degree of precision to be maintained in the attachment of wheel-carrying top girders to the opposite ends of a movable bridge girder. The bridge girder ... | 05/31/1983 |
| 4382413 | Earthquake resistant crane An earthquake-resistant crane including a plurality of girders supported on wheels for movement along rails includes a vertical vibration damping device to ensure safe operation of the crane. The vertical vibration damping device includes a resilient supp... | 05/10/1983 |
| 4360112 | Two-way extendable crane trolley A two-way horizontally extendable trolley 22 comprising a trolley frame 51 and wheels 52 for supporting trolley frame 51, a first horizontally elongated trailer frame 54 slidably mounted on frame 51, and a second horizontally elongated trailer frame 55 sl... | 11/23/1982 |
| 4318346 | Biased traveling crane drive An overhead suspension load transporting trolley which is suspended from a track, such as the flange of an I beam, which has a drive wheel suspended below a carriage, which wheel is biased against the I beam by a counterweight on the opposite end of a lev... | 03/09/1982 |
| 4289076 | Self aligning carrier head and truck assembly A carrier head which rides a rail is provided such that when connected by a load carrying member to a second carrier head on a second rail lateral movement is facilitated between the carriers to adjust for differences in distance between the rails. The ca... | 09/15/1981 |
| 4226332 | Equalization system for overhead cranes In a bridge crane, a rigid rectangular crane bridge frame is supported on a main runway by a truck at each corner, and in order to eliminate loadings on the trucks due to distortion of the runway, the trucks on one side of the bridge support the bridge fr... | 10/07/1980 |
| 4220096 | Bogie A wheel-bogie for supporting a crane, said bogie comprising a load-carrying foot, a main frame, at least two intermediate frames and a number of wheel frames; the transfer of the load from the foot to the main frame and from said frame to the intermediate... | 09/02/1980 |
| 4188887 | Multi-directional crane truck A crane mover is arranged to transfer a crane, such as a dockside crane, around a curve from one straight track to another straight track. The mover runs on rails and carries synchronized jacks engageable with lift pads on the crane. The mover also carrie... | 02/19/1980 |
| 4161144 | Restraint means for overhead travelling crane An overhead travelling crane for a structure subject to oscillations resulting from earthquake shocks, comprises a bridge having flanged main wheels at opposite ends which are supported on a circular runway rail attached to the structure. Restraint means ... | 07/17/1979 |
| 4155476 | Hanging reaction frame assembly A hanging reaction frame assembly for moving a reaction frame to and from a pressure vessel. The reaction frame is hung from a carriage that moves on tracks spanning a well. The pressure vessel is supported by a scaffold within the well and has a platform... | 05/22/1979 |
| 4068487 | Method and apparatus for conducting subaqueous operations in ice conditions An improved platform for performing subaqueous operations in ice conditions. A substructure on the platform supports the equipment for performing the subaqueous operation and straddles an aperture through the platform. Means are secured to the underside o... | 01/17/1978 |