"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 |
| 7765849 | Plate-crimping press for making pipe A press for crimping longitudinal edges of a plate for the manufacture of pipe has a closed press frame, an upper press platen, and a lower press platen extending longitudinally through the frame. A pair of transversely spaced and transversely shiftable upper suppor... | 08/03/2010 |
| 7665341 | Negative-angle press-working die To enable formation at a negative angle with deep bending and forming a high-quality panel, a negative-angle press-working die includes an elevatable pad fixed to an upper die, a slide cam supported to be slidable laterally on the upper die or a lower die and having... | 02/23/2010 |
| 7340935 | Equipment for producing corrugate fin The equipment for producing a corrugate fin is capable of forming corrugated sections by one closing action. The equipment comprises: a plurality of punches respectively having projections, each of which is upwardly projected from an upper face of the punch and has ... | 03/11/2008 |
| 7263757 | Electromagnetic trimming, flanging and hemming apparatus and method Electromagnetic (EMF) trimming, flanging and hemming steps are performed at a single workstation in a combined fixture designed to form a hemmed panel assembly, such as a vehicle closure panel. Two or more formed sheets, outer and inner panels, are positioned togeth... | 09/04/2007 |
| 7243523 | Metal unit nesting machine The invention is a machine, machine system, and method of using a machine that alters metal plates to enable rigid stacking of the metal plates. In a preferred embodiment, the machine system includes a machine cabinet, a first altering system secured in the machine ... | 07/17/2007 |
| 7243524 | Negative-angle press-working die Operations for uniting together a fixed support base 4 for fixedly supporting a workpiece W and a support die and for composing and decomposing a negative-angle press-forming die to take out a product processed by a negative-angle press-forming process are pr... | 07/17/2007 |
| 7204118 | Hemming tool die assembly A hemming die tool assembly for use with an anvil supporting a workpiece to be hemmed. A mounting plate is pivotally secured about an axis relative to the anvil while a vertical slide is slidably attached to the mounting plate along a first direction. An elongated c... | 04/17/2007 |
| 7140960 | Boot hanger mounting bracket The present invention relates to duct systems, registers and ductwork components used with floor or ceiling registers employed in warm air heating, ventilating and air conditioning systems, and specifically to improvements for mounting and installing the components ... | 11/28/2006 |
| 7114364 | Cam slider The invention relates to a cam slider with an upper guiding part containing a cam element (20) and a cam guiding element (10), and with a lower guiding part containing a driver element (40), the upper guiding part (10, 20) being holdable ... | 10/03/2006 |
| 7013783 | Slide cam die A slide cam die including a slide cam base, a wedge-shaped slide cam sliding on a guide surface of the slide cam base and mounting a press tool such as a punch or a trimming blade thereon, and an actuating cam driving the slide cam in contact therewith. A press tool... | 03/21/2006 |
| 6990844 | Narrow aerial and die-mount cams Narrow aerial and die-mount cams, each having a cam adapter, a driver and a slide sandwiched between the cam adapter and driver. The narrow aerial cam slide has an elongate primary portion that has a T-shaped cross-section and has a primary bearing surface, and the ... | 01/31/2006 |
| 6983634 | Rotary bending tool and method of manufacture A rotary bending tool having a series of graphite plugs mounted in a saddle recess engaging a rocker surface to lubricate the same. The rocker is machined in an unhardened state and thereafter heat treated to be hardened, with reverse bending of the rocker thereafte... | 01/10/2006 |
| 6978651 | Roller cam A roller cam with pairs of sliding surfaces and wear plates located in an upper plane and with pairs of laterally slanted sliding surfaces and pairs of laterally slanted guiding wear plates located in a lower plane. The guiding wear plates are longitudinally contain... | 12/27/2005 |
| 6941788 | Bending brake for flat blank The invention concerns a brake (1) comprising at least a platen (2) co-operating with a press (3) for immobilizing a blank section to be bent, the platen (2) being extended by a table (4) hinged to the platen (2) via a hinge... | 09/13/2005 |
| 6823707 | Mobile flange press and method A mobile flange press adapted to be mounted on a flange of a workpiece I-beam and moved thereon including at least one clamp that contacts an underside of the flange of the workpiece I-beam, at least one hydraulic cylinder adapted to apply vertical downward pressure... | 11/30/2004 |
| 6715202 | Tube bender for forming serpentine heat exchangers from spine fin tubing An apparatus and method of forming serpentine heat exchanger coils from spine fin tubing involves applying spine fins to a tube while simultaneously forming the tube into a serpentine shape. The bending and fin wrapping occurs while a feed roll continues paying out ... | 04/06/2004 |
| 6266858 | Apparatus for manufacturing a header pipe The end faces of the edge portions of a flat plate, which have been respectively cut into a given shape according to a trimming operation, are then respectively face-struck into a linear shape. Also, in the trimming operation, each of the edge portions of... | 07/31/2001 |
| 6250177 | Cam apparatus A cam apparatus includes: a cam driver having a sliding surface with a V-shaped cross section; a cam slide having a sliding surface of a shape complementary to the sliding surface of the cam driver in such a manner as to be slidably brought into contact w... | 06/26/2001 |
| 6185899 | Metal panel structures A structural panel, suitable for use as slatwalling in retail outlets, comprised of a metal sheet bent to define on each side of the panel a series of channels of re-entrant cross-section extending continuously across the width of the panel. The panel is ... | 02/13/2001 |
| 6182492 | Hemming machine A hemming machine of the type having a base, a nest for supporting a sheet metal part to be hemmed, and at least one die is disclosed in which the nest supporting the part to be hemmed is vertically displaced against the dies in order to form the hem. The... | 02/06/2001 |
| 6145198 | Method of making a spring for earring clip An earring clip spring assembly has a strip of spring metal which is bent to have a pair of spring arms connected to each other by a closed U-shaped portion. An opening through the omega shaped portion receives a pin which holds the spring to an earring c... | 11/14/2000 |
| 6079250 | Adjustable mechanically operated hemming apparatus A hemming apparatus has a stand which is axially and rotatably adjustable, a carrier pivotally connected to the stand and a hemming tool adjustably received on a slide assembly which in turn is slidably received on the carrier. The hemming tool can be rot... | 06/27/2000 |
| 6006549 | Bending mold having side mounted weight assemblies and method of use thereof The invention provides an articulated bending mold for shaping heat softened substrates, e.g., glass sheets, into curved shapes. The bending mold has a central portion with at least one, and preferably two, pivoting end sections. A biasing assembly is mou... | 12/28/1999 |
| 5904064 | Cam assembly for use in a pressing machine Disclosed is an improvement in a cam assembly for use in a pressing machine having a lower cam to be fixed to the base of the pressing machine, a spring-biased sliding cam whose front surface is allotted to fix a machining tool and a cam holder to be fixe... | 05/18/1999 |
| 5884521 | High performance aerial and die mount cams Aerial and die mounted cams are provided with dual opposed wearplates on bearing surfaces.... | 03/23/1999 |
| 5878619 | Laminated punch and die assemblies A laminated punch assembly (20) is adapted for use in a press brake to bend sheet metal (M) interposed between a punch and die when the punch and die are moved relatively toward one another. The improved punch assembly includes a plurality of plate-like m... | 03/09/1999 |
| 5819578 | Process and appartus for producing reinforcement profiles on sheet metal panels There is disclosed a process and apparatus for producing reinforcement profiles on sheet metal panels wherein the profiles are obtained with the same metal sheet which constitutes the body of the finished shelf. The profiles are obtained by performing a d... | 10/13/1998 |
| 5724851 | Method and apparatus for forming a leaf spring eye Apparatus (100) and method are provided for forming an eye at the end of a heated leaf spring blank (2). Apparatus (100) includes a forming plate (16) operative to move angularly downwardly against a cantilevered portion (10) of blank (2) and roll it abou... | 03/10/1998 |
| 5711180 | Pressing cam die A pressing cam die includes a cam slide having a cam surface; a supporting device for supporting the cam slide onto an upper die such that the cam slide is movable in a downwardly inclined direction; a coil spring for urging the cam slide toward its initi... | 01/27/1998 |
| 5593708 | Apparatus for bending plastic pipe A bending process including both preliminary and following steps takes place in one apparatus. A plastic pipe (6) is heated to a temperature in which it can be plastically deformed. The heated pipe is thereafter shoved into a pipe-shaped bending channel (... | 01/14/1997 |
| 5557964 | Double plane bend former A bending apparatus (10) for use in bending moldings (300 and 301) having a decorative outer surface (308) is described. The bending apparatus includes an upper bending member (12) and a lower bending member (52) which are moved together to form intricate... | 09/24/1996 |
| 5487296 | Univers cam unit A universal cam unit for use in a power press comprising a driver assembly, a slide block to which the working tool is mounted, and a mounting bracket for coupling the slide block to the ram for movement therewith. The slide block is slidably mounted to m... | 01/30/1996 |
| 5481897 | Double plane bend former A bending apparatus (10) for use in bending moldings (300 and 301) having a decorative outer surface (308) is described. The bending apparatus includes an upper bending member (12) and a lower bending member (52) which are moved together to form intricate... | 01/09/1996 |
| 5465600 | Die assembly A die assembly (10) for shaping a workpiece (12). The die assembly (10) includes a die shoe (22) within which a channel (24) is provided. A hollow die head (32) may move within the channel. One or more passages are disposed within the die head (32). Withi... | 11/14/1995 |
| 5269167 | Universal aerial cam unit An adjustable aerial cam unit for use in a power press comprising a stationary driver assembly coupled to the press bed, a slide block to which the working tool is mounted, and means for coupling the slide block to the ram of the power press for movement ... | 12/14/1993 |
| 5253502 | Apparatus and method for bending and forming sheet material An apparatus for bending and forming sheet metal into U-shaped channel members is comprised of a support block for supporting a blank of sheet metal in a centered position, a pair of rollers that engage in rolling contact against opposite ends of the shee... | 10/19/1993 |
| 5216913 | Bending machine for skein-shaped material The guideway for each working carriage has a predetermined parking position in a bending machine for skein-shaped material, in which several working carriages can be adjusted in positions determined by a bending program in a working plate and which compri... | 06/08/1993 |
| 5211047 | Die for bending a composite flange having a stretch portion and a straight portion A bending die includes a first die portion for bending a stretch portion of a composite flange and a second die portion for bending a straight portion of the composite flange. The first die portion has a first inclined surface inclined at a first angle wi... | 05/18/1993 |
| 5158121 | Method of bending lead of electric part and bender therefor A method of efficiently bending a lead of an electric part by use of a bender including an upper die and a lower die without denting or scratching the lead and hence causing no peeling of the plating therefrom. The method comprises the steps of: clamping ... | 10/27/1992 |
| 5125259 | Hand tooling for forming electrical contact elements There is disclosed, a kit of parts for a hand tool (2) for forming electrical tabs (T1,T2) projecting from cable end portions (FC1, FC2) to a plurality of different configurations. The kit of parts comprises a plurality of different tab forming dies (14,1... | 06/30/1992 |