Abstract: A blast cleaning machine for pipes includes means for supporting the pipe in a horizontal position and for rotating the pipe about its axis. The machine also includes an enclosure mounted above the pipe supporting means and the enclosure has a lower opening which is positioned in use close to the upper side of the pipe. A centrifugal blast wheel receives abrasive from a hopper and blasts the abrasive in a downwardly inclined direction through the opening and on to the pipe surface. The spent abrasive rebounds from the pipe surface into a conduit by which the abrasive is conveyed to a reclaim zone in which the abrasive is separated from dirt and other foreign matter and is then returned to the hopper for re-use. The machine can be adjusted for cleaning of pipes of different diameters and in the region of the said lower opening there are interchangeable components by which the size of the opening can be varied according to the pipe diameter.

Abstract: An earthquake resistant, even loaded man-made land structure including an open container provided in the earth, a plate slidably provided in and enclosing the opening of the container, at least one layer of sand provided between the plate and the container, a means for introducing hydraulic fluid into the sand for maintaining the hydraulic fluid under pressure and dirt provided on top of the plate and filling the remainder of the container.

Abstract: Apparatus and method for erecting a mobile home on a preexisting elongated rectangular lot. The home is comprised of four elongated rectangular sections which are erected on the lot so that each pair of sections forms an elongated rectangular dual section, one of the dual sections being erected on the lot so that it abuts the other dual section along about one-half the linear extent thereof thus forming a pair of diagonally opposed generally square areal spaces on the lot eliminating the boxy appearance of conventional mobile home layouts.

Abstract: A series of preconstructed building components consisting of: hollow foundation members generally rectangular in cross-section having a closed bottom with outwardly extending flanges resting on gravel or the like, and a generally "U" shaped plate having slots for joists to rest atop the foundation members; or a foundation of a generally "U" shaped channel having slots for joists; hollow wall cells to rest on either foundation and extend upward therefrom; plates to rest on hollow wall cells for the support of a roof; roofing panels to rest on the plates so as to form a roof for the building; and various other components, as in way of example, lintels and closure panels such as are necessary to the construction of a building.

Abstract: A cornerpiece for multiple pane windows comprises an integrally formed sheet metal piece having orthogonally extending members which are received in the adjacent ends of tubular spacer bars separating the panes of glass in a multiple pane insulating window. The tubular spacer bars form a frame which is interposed between the panes of glass, and the cornerpiece is formed so as to be closely received within the ends of the tubular members, thereby joining adjacent tubular members. The cornerpiece is formed so as to block the ends of the spacer bars to prevent a desiccant that is typically placed in the spacer bars from leaking out of the ends of the spacer bars.

Abstract: What is disclosed is a conversion muntin for use on a glazing muntin to adapt the latter to support light-transmitting plastic panels, including a muntin cover element and a clamping strip. The cover element has a T-shaped configuration including a recessed stem portion and a pair of oppositely extending bearing arms. The stem is recessed to receive a portion of the glazing muntin and has a plurality of longitudinally-extending grooves formed therein. The clamping strip comprises a pair of elongated parallely-extending rails and a hood integrally formed therewith and adapted to receive the stem of the conversion muntin. The rails have oppositely-facing slightly-spaced lips which receive the conversion muntin stem therebetween and which engage said grooves to hold light-transmitting panels against the bearing arms of the conversion muntin.

Abstract: An elongate sheet metal stud having a cross-section including a central web and two oppositely directed flanges on the two sides of the stud extending perpendicularly from the web, and having the ends of the flanges detached from the web and free to straddle the floor and ceiling tracks, permits ease of stacking a plurality of studs and provides firmness while screwing board to the flanges.

Abstract: A reel of flexible sheet material of a width wider than the space between adjacent ones of the purlins in a roof structure is mounted on a support framework over a space between adjacent ones of the purlins. The framework is moved along the purlins and the reel of sheet material is progressively unrolled and the sheet material is formed and guided by the framework down into the space between the adjacent purlins to create a trough in the space between the adjacent purlins. Insulation material is placed in and supported in the trough of sheet material and additional hard insulation can be applied to the upper and lower flanges of the purlins and also can be applied to the purlins to span the space between adjacent ones of purlins. Hard sheets of roofing material are applied to the purlins to cover the roof structure.

Abstract: An improved insulating spacer to reduce the heat transfer between the two panes of glass of double insulated glass comprises an extruded or roll-formed metal spacer together with a plastic insulating element which thermally isolates the metal spacer from the panes of glass while permitting conventional application of the sealant to provide reliable bonding. In one embodiment the plastic insulator comprises an extruded plastic overlay which fits tightly over part of a conventional metal spacer and has projecting contacts which abut the glass.

Abstract: Chucking apparatus is disclosed for engaging articles such as screw-type caps for applying the caps to containers. Caps are bottom or center fed to a fluid operated chuck device which grips the caps and screws them onto a container. The chuck device comprises a plurality of jaw members pivotable to a cap gripping position. An annularly shaped, resilient member surrounds the jaw members. As fluid under pressure is introduced into a chamber in fluid communication with the resilient member, the member is compressed causing the jaw members to pivot to the cap gripping position. The chuck device, which is connected to a constantly operating motor through a torque clutch, screws the cap onto a threaded portion of the container. The torque clutch is set such that when the cap is properly tightened on the container, the resistance to further tightening causes the clutch to disengage.

Abstract: A device for screw-tightening caps on containers such as bottles has a cap chuck head for grasping and holding each cap with holding pawls, a driving shaft, and a friction clutch mechanism constructed separately from the chuck head but mechanically coupling the driving shaft and the chuck head to transmit rotational power to the chuck head at torques below a predetermined maximum torque, at which the cap is screw tightened, friction plates of the clutch mechanism slipping at any higher torque to prevent excessive tightening. The separate construction of the clutch mechanism and the chuck head prevents subsequent engagement of the clutch plates due to reaction forces arising during the screw-tightening operation, thereby preventing excessive tightening.

Abstract: A process is provided for the opening of envelopes made of cellulosic paper by the action of a chemical degradation agent in the presence of radiant heat in which the radiant heat is generated from a source maintained at a temperature high enough to produce a substantial amount of radiation having a wave length of 2 microns or less and by applying to the edges to be opened a darkening material capable of absorbing a substantial portion of the incident radiant energy.

Abstract: Apparatus for harvesting aquatic plants from a body of water includes transporting means, such as a trailer or a floating craft, adapted to move into the body of water. A centrifugal pump mounted on one end of the transported is adapted to be at least partially submerged in the body of water, the pump including a housing having an opening for transmitting water and aquatic plants therein into the housing. The centrifugal pump pumps water and the aquatic plants from the body of water. An envelope surrounds at least a portion of the opening in the housing and extends outward from the housing and the opening for restricting water flow into the opening.

Abstract: A single row corn harvesting unit of a normally multiple unit corn head adapted to be mounted at the forward end of a crop harvesting combine and comprising a pair of "snapping rolls" or stalk rolls extending forwardly in cantilever fashion in contiguous relation to each other from a gear subassembly, the snapping rolls cooperating with each other in the corn harvesting operation. The rearward end of each snapping roll has a driven bevel gear mounted thereon, the two driven bevel gears comprising part of the gear subassembly. A drive shaft is suitably mounted for rotation and a double bevel gear which also forms part of the gear subassembly is mounted on the drive shaft. The double bevel gear has opposed gear faces each respectively adapted to drivingly engage a corresponding driven bevel gear on one of said respective snapping rolls.

Abstract: A fruit picking panel with a certain arrangement of a plurality of parallel disposed rotating spindles and a certain arrangement of a plurality of intermingled parallel disposed stationary spindles. Both the rotating and stationary spindles penetrate the branches of a fruit bearing tree. Each of the rotating spindles is equipped with a plurality of angularly disposed adjoining shank sections lying out of the axis of rotation and including one portion thereof which is covered with an elastomer that includes as an integral portion thereof a paddle-like radial extension. When the rotating spindles on the fruit picking panel are rotated, the elastomer covered angular portions of each spindle moves toward and away from adjacent rotating and stationary spindles. When the elastomer covered sections of adjacent spindles pass each other they create a scissors action so that intermediately disposed fruit is safely and effectively sheared from its tree attachment.

Abstract: An improved knot tying mechanism, primarily for use in the agricultural industry, is disclosed. A twine disc rotatably mounted about a central fixed hub is angularly arranged to position the twine-gripping area for better acceptance of twine from the needle and thereby reduce the incidence of misties due to inadequate gripping. A billhook shaft with a worm gear thereon extends through the fixed hub to properly support the billhook adjacent the twine-gripping area. Cooperating gear teeth on the twine disc are engaged by the worm gear so that rotational power applied to the billhook shaft is transmitted therethrough to provide corresponding movement of the twine disc.

Abstract: A winding machine with a multitwist spindle for textile working of fibres and yarn with a synchronized movement of the multitwist spindle and the winding-on mechanism, both of which are mutually independently supported by a supporting frame.

Abstract: There is disclosed an apparatus for the frictional spinning of yarn on the open-end principle. The apparatus includes a mechanism for supplying separated fibers onto one of frictional surfaces provided on respective rotary carriers inserted one in the other and forming a wedge-like gap therebetween in the mouth of which fibers are twisted due to friction with the two frictional surfaces moving in opposite directions in said wedge-like gap, and a mechanism for withdrawing the yarn from said mouth of said wedge-like gap and adapted to prevent any twist propagation, one frictional surface being concave and the other being convex relative to the yarn building region in the mouth of the wedge-like gap. In accordance with the invention a carrier through its front opening situated opposite its second front opening for delivering yarn withdraw from the mouth of the wedge-like gap.

Abstract: A coherent, bulked, continuous-filament, heather-dyeable yarn having a more natural, spun, wool-like appearance in carpets consists of lighter dyeing filaments which comprise 20-50% of the total yarn filaments and which are 15-45% longer than the darker dyeing filaments in the yarn. The yarn is produced by overfeeding the lighter dyeing filaments to a greater degree than the darker dyeing ones through a turbulent fluid-jet intermingling zone.

Abstract: Device for temporarily stopping the operation of spinning stations of a spinning machine equipped with means for automatic inspection and/or cleaning of the machine after an interruption in the spinning operation at a spinning station and for thereafter restarting the operation of the respective spinning station includes a monitoring device associated with each spinning station having means for producing an intentional interruption of the spinning operation at the respective spinning station when a given value of a characteristic of the uninterrupted spinning process is reached or exceeded and only when no other spinning station serviced by the means for automatic inspection and/or cleaning of the machine is out of operation due to an interruption of the spinning operation performed thereat that requires correction.

Abstract: An open-end spinning machine is provided which includes a plurality of commonly driven spinning units arranged in side-by-side relationship. Each of the spinning units includes a spinning rotor, an opening device for opening fibers, a fiber feed device for feeding fibers from the opening device to the spinning rotor, and vacuum producing means for generating an air current to act on the fibers to aid in the feeding through the fiber feed device. To accommodate start-up operations and restarting in the event of a shut-down spinning unit, piecing apparatus is provided which includes a thread end return device for returning a thread end into the rotor for piecing onto a fiber ring deposited inside of the rotor and for taking off the pieced thread. In preferred embodiments, the piecing apparatus is equipped with additional devices for controlling the rotor speed and the quantity of fibers fed during the piecing step.

Abstract: A multi-range timer comprising an RC oscillator with a variable resistor whose resistance is varied with rotation of a dial. A fixed frequency divider circuit frequency-divides the output of the RC oscillator. A variable frequency divider circuit receives an output of the fixed frequency divider circuit, and a time setting section having a digital switch switches a frequency division ratio of the variable frequency divider circuit. The time limit is changed by switching the digital switch. The time setting section comprises a dial and a plurality of numerical value scales distinguished from one another by color, each of said scales having the same color as the display surface of said digital switch, which indicates a selected time setting range.

Abstract: A supplemental clock dial for a clock comprising an annular transparent disc mounted centrally on a bushing driven to turn the hour hand, an hour hand on the annular disc, said disc rotating once in twelve hours and including the names of countries or cities around the world and showing the time in those places, the names of said countries and cities being mounted on balanced swinging members so that they are always upright; and including separate members showing the AM and PM indications for each of said countries or cities these members being swingingly mounted on the first named members and including means to turn them 180.degree. each twelve hours, and having weights for keeping the same in upright position for a period of twelve hours, whether AM or PM.

Abstract: Waterproofing of a watchcase is achieved by a sealing ring disposed between the periphery of the watch glass and a bezel portion of the case and confined between the glass holder ring on which the watch glass rests and an inturned lip portion of the bezel which retains the watch glass. By being disposed between the periphery of the watch glass and the bezel, the sealing ring is concealed from view by the inturned lip portion of the bezel and a more attractive watch is thereby achieved. A second sealing ring is provided between the bezel portion of the case and the case back to provide a seal therebetween.

Abstract: A combined cycle electric power plant includes gas and steam turbines and a steam generator for recovering the heat in the exhaust gases exited from the gas turbine and for using the recovered heat to produce and supply steam to the steam turbine. Afterburners further heat the exhaust gases from each gas turbine prior to their passage to respective heat recovery sections of the steam generator. The power plant control system provides coordinated plant control or coordinated control of selected turbines and afterburners in both startup and load operations, with load distribution optimized according to the turbines under coordinated control. Transfer between coordinated control and alternate modes of plant control may be done by operator selection or automatically upon sensed conditions.

Abstract: An improved cooling arrangement is provided for cooling a portion of a combustor dome assembly of a gas turbine engine. The improvement is comprised of an annular dome plate having a generally V-shaped cross section and including one or more circumferentially spaced apart, generally radial cooling slots within a surface which is exposed to the combustion zone.

Abstract: An engine includes a generally cylindrical housing divided into inlet, combustion chamber, and power housing portions. A shaft is rotatably mounted in the housing. A compressor element is mounted on the shaft for rotation in the inlet portion, an intake and exhaust valve rotor element is mounted on the shaft for rotation in the combustion chamber portion, and a power element is mounted on the shaft for rotation in the power housing. The valve rotor is provided to regulate the flow of compressed air into and out of the combustion chamber. Fuel injection and ignition are suitably timed to occur generally between intake valve closing and exhaust valve opening. Combustion products exit through the exhaust valve into the power rotor. These products rotate the power rotor to drive the compressor and valve rotors. The working surfaces of the compressor and power rotors are helices. The pitch of the compressor rotor helix decreases between the inlet end of the housing and the combustion chamber.

Abstract: An improved combustor for a gas turbine engine is disclosed. Techniques for reducing the level of noxious pollutants emitted by the combustor are developed. In one embodiment, a combination of serpentine geometried, fuel-mixing tubes discharging to the radially outward area of the combustor and an axially oriented, fuel-mixing tube near the center of the combustor are adapted to generate a strong centrifugal force field within the combustor by swirling the fuel/air mixtures flowing therethrough. The force field promotes rapid mixing and combustion within the chamber to reduce both the magnitude of the combustor temperature and the period of exposure of the medium gases to that temperature. The tube at the center of the combustor is adapted to swirl the medium flowing therefrom in a circumferential direction counter to the direction in which the medium from the serpentine geometried tubes is swirled.

Abstract: A propulsion system for use primarily in V/STOL aircraft is provided with a variable cycle, double bypass gas turbofan engine and a remote augmenter to produce auxiliary lift. The fan is oversized in air-pumping capability with respect to the cruise flight requirements of the remainder of the engine and a variable area, low pressure turbine is capable of supplying varying amounts of rotational energy to the oversized fan, thereby modulating its speed and pumping capability. During powered lift flight, the variable cycle engine is operated in the single bypass mode with the oversized fan at its maximum pumping capability. In this mode, substantially all of the bypass flow is routed as an auxiliary airstream to the remote augmenter where it is mixed with fuel, burned and exhausted through a vectorable nozzle to produce thrust for lifting.

Abstract: A core engine with a single shaft driving both a forward and a rear fan, with the fans discharging into separate nozzles which are variable to direct exhaust gases in either the downward or rearward direction or in any direction therebetween. Separate flow modulating means are provided with the fans to selectively vary the respective thrusts produced. By selective modulation of the nozzles and the flow-varying means, both engine angle control and position control may be obtained in all three planes. A third variable position nozzle is provided to direct the discharge flow of the core turbine between the downward and rear directions to thereby augment the thrust and control functions.

Abstract: A variable cycle turboshaft engine includes a remote fan system and respective high and low pressure systems for selectively driving the fan system in such a manner as to provide VTOL takeoff capability and minimum specific fuel consumption (SFC) at cruise and loiter conditions. For takeoff the fan system is primarily driven by the relatively large low pressure system whose combustor receives the motive fluid from a core bypass duct and, for cruise and loiter conditions, the fan system is driven by both a relativelysmall high pressure core and the low pressure system with its combustor inoperative. A mixer is disposed downstream of the high pressure system for mixing the relatively cold air from the bypass duct and the relatively hot air from the core prior to its flow to the low pressure turbine.

Abstract: A method for decreasing CO and HC emissions in a vehicle exhaust stream during the period of engine warm-up following the start of engine operation, in which the A/F mixture to the engine is pulsed by first using a mixture which is leaner than that otherwise used thus reducing the CO and HC content of the exhaust stream exiting the engine to an amount below that of the CO and HC otherwise present and then using an A/F mixture which is richer than such lean mixture and is substantially that otherwise used thus increasing the amount of CO and HC in the vehicle exhaust stream to substantially the amount otherwise present, passing the pulsed exhaust stream through a catalytic converter adapted to oxidize the CO and HC constituents, and repeating this pulsing continuously through the period of engine warm-up and at a rate sufficient to achieve increased catalytic conversion of CO and HC over that obtained without pulsing, the rate being also sufficiently rapid so as to preclude engine-stall.

Abstract: An exhaust gas purifying apparatus for internal combustion engine of the type having an intake conduit for supplying air-fuel mixture to the engine, an exhaust conduit for conducting exhaust gas discharged from the engine to a catalyst for purifying the exhaust gas, secondary air supply pump driven by the engine for supplying secondary air to the exhaust conduit and detector for detecting oxygen content of the exhaust gas. The negative pressure in the intake conduit is compared with the differential pressure produced across a restriction disposed in the secondary air supply conduit thereby to control the quantity of the secondary air supply so as to be proportional to the quantity of the intake in dependence on the result of the comparison. The output signal of the oxygen detector is utilized for modifying the above control.

Abstract: An apparatus characterized by a first conduit communicating with a fluid-filled first enclosure and having an open end adapted to be immersed in a wave-forming body of fluid for conducting pressure-induced flow toward and away from the first enclosure, a variable volume enclosure disposed within the first enclosure having its lower wall connected to a structure of variable buoyancy, adapted to expand and contract in conformity with the principles of a "Cartesian diver", a second conduit connected for providing a flow of fluid between the first and the variable volume enclosures, and a motor connected in the second conduit and adapted to be driven by the fluid flow therein.

Abstract: A heat engine using as the working medium a non-compressible substance such as a liquid or a solid. The non-compressible substance in an enclosure is moved alternately relative to and between a high temperature zone and a low temperature zone to undergo expansion and contraction, which are transmitted directly or indirectly as mechanical displacement by an output piston. As the non-compressible substance, polyethylene or paraffin is most desirable.

Abstract: An improvement in a turbocharged engine of the type that includes an exhaust turbine driven by exhaust gases from the cylinders of the engine, and which drives a compressor located along an inlet conduit leading to the engine to supply compressed air to the cylinder. The improved system includes a recirculating passage which can carry compressed air from a point along the inlet conduit downstream of the compressor, back to a point along the inlet conduit which is upstream from the compressor turbine, to recirculate the air. A valve located along the recirculating passage, is operated by sensors detecting when the engine is operated at high loads, to then open the valves to cause recirculation of the air pumped by the compressor.

Abstract: An apparatus for generating power from the temperature difference between two bodies of fluid, one of which is heated by trapping solar energy in a dome and the other one of which is cooled by wind passing beneath an airfoil. A pair of heat exchange basins are provided into which hot and cold fluid is supplied, with heat exchange coils disposed therein for developing a differential pressure which is transmitted to opposite sides of a piston. The fluid temperature in each heat exchange basin is reversed by gravitational action so that piston motion can be reversed for pumping action.

Abstract: A method and apparatus for transferring energy from a first fluid flow to a second fluid flow via vortex generating means. Various embodiments and various support means for elements of the apparatus are also disclosed.

Abstract: Fuel is injected through very fine holes normally into a swirled airstream. A finally atomized fuel results and a solid cone of fuel and air passes into the combustion chamber. The injector gives high combustion efficiency at idle conditions reduces smoke at high power conditions.

Abstract: An air conditioning apparatus and method are disclosed. The apparatus includes a chemical dehumidifier which employs an aqueous hygroscopic solution of glycol and a solar energy collector for use in regenerating the solution. Air to be conditioned is circulated through a contactor of the chemical dehumidifier, in contact with cooled glycol solution. Concentrated hygroscopic glycol solution is circulated from a regenerator to the contactor, while dilute solution is circulated from the contactor to the regenerator. Energy from the solar collector is transferred to facilitate concentration thereof. In one disclosed embodiment energy from the solar collector is also transferred to the generator of heat-powered refrigeration apparatus, e.g., absorption or rankine engine driven refrigeration apparatus.

Abstract: A setting and a method for mounting precious stones or the like comprises providing a setting having a top surface, at least one row of at least two adjacent cavities and a connecting portion connecting each pair of adjacent cavities, each cavity configured to receive a precious stone or the like therein from the top surface with a peripheral portion of each stone extending over the associated connecting portions. The deformable enlargeable and compressible securing slots are formed at each connecting portion above the top surface of the setting and receptive of the peripheral portions of the stones. In the method, the slots are deformed to enlarge same and the stones are inserted in the cavities with the peripheral portions in the slots and the slots are compressed to secure the stones in place.

Abstract: A slip clutch of the friction type is described for interposition between a rotary shaft and a driven or driving element on the shaft, such as a gear, cam, pulley, crank or the like, the slip clutch including a split sleeve in engagement with the element or the shaft but retained against movement by a key carried in a keyway on the shaft or in the element, a split tolerance ring being interposed between the split retainer ring and the shaft or the element and retained against rotation with respect to each other and to the shaft or the element in the shaft by the key. The gear, cam, pulley and the like is retained against longitudinal movement along the shaft in any desired manner such as by a shoulder on the shaft and a split retainer ring in a groove on the shaft or by a pair of spaced retainer rings in grooves on the shaft.

Abstract: A needle selection mechanism for an automatic knitting machine, comprising at least two selector levers mounted to a carriage which is adapted to move along a needle retainer in which are disposed a plurality of selectors for knitting needles, wherein each selector is individually engageable with one of the selector levers, and different selectors are engageable with different selector levers, and wherein the selector levers set the selectors to either "knit" or "welt" positions.

Abstract: A straight bar knitting machine for example of the Cotton's Patent type has (see FIG. 1) a shaft (4) which is resistant to torque located inside a knitting head (H) to reduce distortion of a knockover bar (2) located between a needle bar (33) and a sinker bar (30) by means of means (8,10,12) which interconnect the knockover bar and the shaft in such a way that the shaft oscillates concurrently with the reciprocation of the knockover bar.

Abstract: A minimum friction slider needle for use with warp knitting machines includes a shank having a slot provided therein. The bottom portion of the slot is provided with a raised portion which is the only portion of the shank that comes into contact with the slider member in operation.

Abstract: Provided is an automatic washing machine in which the washing, water-draining/dehydrating and rinsing steps are automatically carried out by an electronic control circuit including an electronic timer, arithmetic-operation processor and memory. The machine further includes a transparency detector for detecting at the initial stage of the washing step the transparency of water used in the washing step and supplying an output signal to the electronic timer so as to set the operating time for the washing and rinsing steps.

Abstract: An additional locking system is provided for a combination lock. The combination lock includes a housing, a locking mechanism and a bolt in the housing movable between a first position projecting out of the housing and a second position generally withdrawn in the housing. The bolt can be moved to the second position only when the locking mechanism is in an unlocked condition. The additional locking system provides an additional lock for the bolt in the first position, and a heat responsive member prevents the additional locking system from locking the bolt until the housing is heated above a predetermined temperature. The additional locking system includes a spring with an arm thereon in the housing. The bolt includes a slot and the spring is mounted such that the arm is adjacent the slot, and the spring biases the arm toward the slot. The heat responsive member is a fuse in the housing urging the spring against the biasing to hold the arm out of the slot.

Abstract: An improved cylinder lock which is very difficult to pick has at least one cylinder pin into which a set of shallow grooves has been cut as well as a deeper notch at one end of the pin. A boring is made in the cylinder at an angle to the boring of the cylinder pin and into which is placed an appropriately sized obstructing pin. The obstructing pin is free to drop into a recess made in the lock housing when the cylinder is locked. The process of attempting to pick the lock by rotating the cylinder slightly results in the obstructing pin sliding along the side of the V-shaped recess in the housing and thereby moving toward and engaging the notches in the body of the cylinder pin preventing unauthorized movement of the cylinder pin which would render the associated locking pin inoperative. When a legitimate key has been inserted into the cylinder, the cylinder pin moves to its fully unlocked position before the cylinder rotation is initiated.

Abstract: A steering lock for motor vehicles which consists of a lock cylinder, of a housing and of a cover sleeve of tough material at least partially surrounding the housing, which is adjoined by a cap arranged within the area of the end face of the lock cylinder and which is provided with a recess along the inner wall, into which engages a safety catch against unauthorized removal of the cover sleeve; for the disassembly of the lock cylinder, the safety catch can be disengaged in a predetermined position of the key and therewith of the rotor of the lock cylinder; the cover sleeve is fastened to the housing by a threaded connection secured against an unscrewing and surrounds with play by means of a radially inwardly directed rim, a thick-walled cap retained at the front face of the rotor; the cap in turn is provided only with a closely fitting opening for the insertion of the key.

Abstract: A method of controlling a rolling mill in which eccentricity of the roll assemblies of the mill and variations in the thickness and/or hardness of material entering the mill ordinarily adversely affect the gauge of the material leaving the mill. The method involves the steps of slowly eliminating the cyclic effects of roll eccentricity on the exit gauge of the material while simultaneously correcting for the adverse effects of incoming gauge variations. This is accomplished by continually estimating a change in exit gauge using the standard gaugemeter equation but correcting the equation with continuing estimates of backup roll eccentricity, until the cyclic effects of such on exit gauge are essentially reduced to zero.