Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 4054047 | Device for receiving and discharging rolled bars and the like A discharge device for the reception in the axial direction of advancing rolled bars or the like and the discharge of same, this discharge device comprising essentially two rotating drums, opposed to another in a way so as to be rotated on parallel axles ... | 10/18/1977 |
| 4047985 | Method and apparatus for symmetrically cooling heated workpieces The disclosure pertains to an arrangement for cooling a heated workpiece, such as, strip or slab as it issues from a rolling mill or continuous slab caster. The longitudinally moving workpiece is caused to pass between a number of coolant discharge header... | 09/13/1977 |
| 4044585 | Entry rollerway for a cooling bed for elongate rolled stock An entry rollerway for a cooling bed for elongate rolled stock in which all parts necessary for guiding and laterally ejecting the rods are carried by lantern-shaped cast members which also constitute the bearings for the rollerway rollers, so that the lo... | 08/30/1977 |
| 4043166 | Removing crust of oxide from profiled wire rod Removing the crust of oxide formed on the surface of a continuously casted copper bar by projecting a liquid (water or a rolling emulsion) under pressure of between 20 and 60 atmospheres against the periphery of the bar, the flow of the liquid under press... | 08/23/1977 |
| 4041742 | Apparatus and method for cold working metal powder An apparatus and method for cold working metal powder to produce a metal powder highly suited for consolidation wherein the apparatus comprises a cold rolling mill including a pair of driven rolls mounted within a sealed work chamber for receiving and def... | 08/16/1977 |
| 4041752 | Rolling mills having hydraulic forces exerted on the exterior roll surfaces Rolls of a rolling mill have hydraulic pressure exerted on the exterior surfaces thereof by hydrostatic pressure devices which produce hydraulic pressure in the gaps between bearing surfaces of the devices and the roll, and a flow of the hydraulic fluid i... | 08/16/1977 |
| 4036243 | Apparatus for cooling hot slabs Rows of stakes rising from several parallel beams in a soaking pit form a multiplicity of compartments each designed to receive one or more slabs coming to rest on a pair of such beams. The slabs are carried hot to the pit and cold from the pit by a railb... | 07/19/1977 |
| 4024745 | Rod cooling and coiling system An improved rod coiling and cooling system includes a coiler which receives hot rod from a rod rolling stand. A guide or repeater section is provided between the rolling stand to effect a bending of the rod to guide it into the coiler. The coiled rod is t... | 05/24/1977 |
| 4023392 | Method and apparatus for cooling hot rolled rod A method and apparatus for cooling a rod of a coil form, immediately after the hot-rolling thereof and within which the rod, whose loops are spaced a given pitch from one another, is laid flat upon a chain conveyor, and more particularly upon rails thereo... | 05/17/1977 |
| 4022047 | Hose reel for piercer and reeler outlet tables The disclosure generally relates to a positive drive hose reel apparatus for a cooling system mounted on the linearly movable thrust block of a piercing or reeling mill. The thrust block means is adapted to move along a path between a working position and... | 05/10/1977 |
| 4019846 | Rolls in a briquetting machine or like machines An arrangement for controlling the temperature of an arbor-sleeve type roll employed in a rolling process such as in a briquetting machine by transporting temperature control medium to the extremities of the working surface of a removable sleeve by provid... | 04/26/1977 |
| 4000625 | Method of cooling a moving strand of hot material Water-cooling tubes are extensively used for cooling hot moving strands, for instance hot-rolled rod. In order to avoid the braking action of the water within the tubes, the invention provides for the water to be expelled from the tubes before the leading... | 01/04/1977 |
| 3998084 | Cooling spray system for rolling mill Rolling mills require uniform temperature control across the width of the sheet in order to roll a flat metal sheet of uniform gauge. This invention provides a rolling mill with spray nozzles that operate in groups to maintain substantially uniform temper... | 12/21/1976 |
| 3994151 | Method for cooling the rolls of rolling mills In a rolling mill for reducing metal, having upper and lower work rolls between which the metal is passed and at least one back-up roll for the upper work roll, the combination of means for applying coolant to the surface of the upper work roll only on th... | 11/30/1976 |
| 3990257 | Method for cooling workpieces in a liquid bath A cooling system for cooling steel slabs or the like comprises an elongated tank with parallel rollers for conveying the heated slab horizontally beneath the surface of a water bath. Water curtains from angularly directed upper and lower nozzles seal the ... | 11/09/1976 |
| 3977224 | Conveying systems A rod treatment line consists of a rod conveyor on which the rod is carried in open loop form, a coil forming device for forming the rod into coils, and a coil loader for moving the coils from the coil forming device to a loading station with the axes of ... | 08/31/1976 |
| 3968671 | Cooling bed method A movable rack cooling bed for receiving hot metal strands from a rolling mill and having a dual strand run-in table and means for selectively transferring a strand from either portion of the run-in table to cooling bed holding notches for single or two-s... | 07/13/1976 |
| 3949585 | Process for cooling rolled wire In a process for cooling rolled wire a coolant tube is mounted directly behind a pair of grooved rollers used to roll wire stock into wire, the coolant being introduced into the tube in a direction opposite the direction of wire movement through the tube.... | 04/13/1976 |
| 3946586 | Process and apparatus for rolling seamless tubes In the rolling of seamless tubes using a mandrel which is inserted in a hollow bloom as it is advanced through a rolling mill, the cooling of the mandrel after the tube rolling stage is effected, for example by passing the mandrel through a cooling bath, ... | 03/30/1976 |
| 3940967 | Apparatus for controlled cooling hot rolled steel rod in direct sequence with rod mill Apparatus for conveying an elongated hot-rolled steel rod in overlapping off-set ring form over a controlled cooling conveyor. The conveyor is provided with a plurality of nozzles through which cooling air is supplied to the edges of the rings and with a ... | 03/02/1976 |
| 3940961 | Apparatus for cooling hot rolled steel rod by forced air convection or by supplying heat Apparatus is provided for uniformly cooling hot rolled rod over a continuous range of cooling rates from less than 0.5° C/sec. to about 20° C/sec. together with a mechanism for removing scale accumulated therein in a confined and safe manner. The contex... | 03/02/1976 |
