Abstract: The object of the present invention is to clip and collect seedlings easily and effectively from runners of a parent plant such as strawberry. To attain this object, a method for raising seedlings comprising; planting a parent plant in a plant bed disposed in a high position, growing plural runners linked mutually to hang from said parent plant in said plant bed, attaching water absorbing block to each rooting part between runners hanging in midair, supplying water to each water block to grow root and seedling from said rooting part, and clipping and collecting the resulting seedlings from runners is provided.

Abstract: A one-way self closing gate such as may be used in retail stores, airports or libraries is provided with an inclined helical ramp mechanism by which opening of the gate also causes lifting of the gate arm relative to the gate base. When released the gate will tend to close itself under the force of gravity. To augment this gravity force a spring is provided which is compressed as the arm rises relative to the base. So that the gate does not close too quickly a screw presses a nylon slug against the turning shaft of the gate. When the gate is closed a force applied to open the gate in the contrary direction to that intended is resisted by abutment of a generously welded internal stop against a generously welded internal upright. In an alternate form this resistance function in the closed position is performed by an adjacent post positioned to intercept the motion of the moving barrier. In all cases the internal mechanism of the gate is enclosed in a housing to prevent injury to children's fingers.

Abstract: A tent flooring system including a support structure having two separately inflatable bladder members; and a fastener assembly for securing the support structure beneath a tent. The first bladder member is provided with a non-slip surface for contact with the existing tent floor. The second bladder member has a plurality of multi-directional channeling structure protrusions extending therefrom for allowing water to pass under the first bladder member during a rainstorm or the like.

Abstract: A roof window has a locking device (1) for locking the sash (4) in open positions relative to the casing (3); a device for opening the sash including spring arms (2) extending at a right angle to the window casing (3) at least in the closed condition of the roof window, and the spring arms (2) support the window sash (4) on said casing (3) in the open position thereof, the spring arms (2) are operatively connected both to the casing (3) and the window sash (4) by pivot bearings (5, 6), and one of the pivot bearings (6) is disposed on a spring-operated slide (8) movable in a guide (7). The slide being lockable by the locking device (1) which is operatable by a handle (9, 9').

Abstract: A roof includes a roof deck and a plurality of roofing shingles where the roofing shingles have the appearance of a wooden shake shingle and comprise organic, resinous material in, preferably a plastic material, an amount within the range of from about 16 to about 24 percent by weight, and a filler material in an amount within the range of from about 76 to about 84 percent by weight. The roof provides a Class A fire barrier when tested according to ASTM test E108-93 for flame spread, burning brand and intermittent flame.

Abstract: A masthead and spreader bird roosting guard having unique prongs consisting of copper tacks having elongated cut sharp points combined with a self adhesive strip on a metal strip for providing a continuous guard device directed to maritime use on a masthead members including mastheads and spreaders.

Abstract: Disclosed is a rigid, thermoplastic foam board useful in below-grade residential and commercial insulating and drainage applications. The board defines a plurality of oriented channels extending therein along the board. The channel extends into the board through a relatively narrow first opening at the face into a relatively wide first zone. The channel then further extends into the board from the first zone through a relatively narrow second opening into a second zone. The board provides superior water drainage, and protects a below-grade building wall from excessive moisture. Further disclosed is a method for using the foam board in below-grade applications.

Abstract: An inexpensive drain assembly for draining water from flat roofs, balconies, decks and other flat or low sloping surfaces that are covered with a water-tight single layer synthetic roofing and waterproofing membrane. The drain assembly includes a grate having a strainer and a connecting collar, a flanged boot that is contoured to fit snugly around the collar of the grate and is sealed via the flange to the synthetic membrane, and a pipe connector that connects the grate and contoured boot to a standard drain pipe. The flanged boot is made from elastomer that is identical to or compatible with and sealably attachable to the synthetic membrane. The elastomer and the synthetic membrane are made of materials selected from a group consisting of synthetic rubber, rubber-like materials, plastic, and plastic-like materials.

Abstract: A roof tile formed of a sheet metal, preferably steel, in which the sheet material tile is strengthened by integral flanges (11) raised bosses (14) and depressions (15). The raised bosses (14) in use act as supports between one tile and an overlapping portion of another tile.

Abstract: A load bearing structure having a set of uniform voids functions to resolve the forces imposed by developing compression in the material having the voids and minimizing the amount of tension developed in the material. For the voids to have this function, they must be deployed in a particular fashion. The voids are deployed to encompass a particular set of points. The set of points are such that each point in the matrix is spaced an equal distance from twelve and only twelve adjacent points of the matrix. The distance between the points does not matter as long as all are uniformly distanced in accordance with that rule. If the structure is considered to be composed of a closely packed set of hypothetical rhombic dodecahedra (RD) and the four edge vertices of each of those hypothetical RDs is truncated, the result will be a set of cubic voids.

Abstract: The border blocks of the invention include a plurality of hollow plastic blocks fillable through push-cap openable holes at their top with sand and employing various tongue-and-groove interlocks extending from the left and right sides thereof to join with similar adjacent blocks--whether linear or curved--and with the individual blocks also being provided with apertures at their bottom to mate with projections as part of the push-cap openable holes so as to stack one atop the other in forming several courses of block and in which the blocks forming the bottom course incorporate a tie-down arrangement for securement to the ground.

Abstract: An applicator tool for applying cementitious materials such as joint compound to corners. The tool has a handle and a head which is curved. The handle and head are integrally formed preferably from plastic. A flexible elastomeric blade projects from the forward edge of the head to smooth the compound. A one-piece molded corner cap in a general trihedral shape is provided and when using the tool results in a smooth, uniform finished corner. In use, the one-piece molded corner cap is applied over the corner beads to achieve a snug fit. Cementitious compound is applied over the corner cap and bead resulting in a smooth finished surface with a high quality appearance.

Abstract: The present invention discloses a packing tape sticking apparatus for jointing butt portions of two pieces of a sealing machine or a box construction machine and for jointing butt portions of two pieces of corrugated fibreboard containers, wherein a cutter is usually escaped to a storing position and is protruded to a cutting position only when a sealing operation is performed. When a tape sticking plate is located in a sticking position of the packing tape through a third elastic member, a first elastic member arranged between the cutter and a tape pressing member is under a natural condition which is not elastically transformed, and the cutter is escaped to the storing position by an urging force of a second elastic member arranged between the cutter and a side plate.

Abstract: A decorative assembly for a floral grouping comprising a floral holding material and a sheet of material. The floral holding material is constructed of a material capable of receiving a portion of a floral grouping and supporting the floral grouping. The sheet of material is extended about a portion of the floral holding material and a crimped portion is formed in the sheet of material with the crimped portion cooperating to hold the sheet of material about the floral holding material to provide a decorative covering.

Abstract: A wrapping material for providing a decorative covering for an item wherein the wrapping material has a width and at least a first end. The first end of the wrapping material is positioned on the outer peripheral surface of the item to be wrapped and the wrapping material is wrapped about the outer peripheral surface of the item while moving the wrapping material generally over the outer peripheral surface of the item until the wrapping material covers at least a portion of the outer peripheral surface of the item.

Abstract: A method and apparatus for covering portions of an object having an outer peripheral surface with a sheet of material having an upper surface and a lower surface with a pressure sensitive adhesive on at least a portion of the lower surface by wrapping the sheet of material about portions of the outer peripheral surface and positioning the sheet of material so that the pressure sensitive coating either contacts portions of the outer peripheral surface of the object and is bonded thereto or contacts overlapping portions of the sheet of material and is bonded to other adjacent portions of the sheet of material having the pressure sensitive coating thereon or overlapping portions of the sheet of material are bonded by the pressure sensitive adhesive.

Abstract: A plant packaging system comprising a combination of a protective sleeve portion and a decorative cover portion having a base and skirt for packaging a potted plant. The protective sleeve can be detached from the decorative portion of the package system once the protective function of the sleeve has been completed, thereby exposing the decorative cover and allowing the skirt portion to extend angularly from the base. The protective sleeve and decorative cover components may comprise a unitary construction or may comprise separate components which are attached together by various bonding materials.

Abstract: A goods accommodation method and apparatus in which a container is set such that its opening is directed horizontally, and box-shaped goods are stacked on a slide such that their surfaces facing the opening of the container are aligned with each other. The goods are transferred into the container while they are held in the stacked state by inserting the slide together with the goods stacked thereon into the container and then quickly pulling the slide out of the container at a speed higher than the speed of insertion such that the stacked goods remain in the container. The container is then turned up such that its opening is directed upward.

Abstract: A method and a device for packing continuously conveyed printed products being conveyed one of individually and in groups by enveloping a product insert with a packing element. The product insert includes one of a single product, a plurality of products supplied in succession and a group of products. A plurality of substantially V-shaped insertion compartments being continuously conveyed in a compartment conveying direction along a closed conveying path are provided, together with a plurality of prefolded packing elements each having a fold in a substantially continuously conveyed stream of packing elements. A respective packing element is successively introduced into each insertion compartment such that the fold of the respective packing element is introduced into a corresponding insertion compartment first. It is then ensured that each respective packing element is in an open position thereby providing open packing elements. Thereafter, a product insert is inserted into each open packing element.

Abstract: A strapping machine is disclosed which enables a prolonged life of the driving force supplying means for feeding/tightening a band such as an electric motor to be realized, and which enables maintenance operations such as replacement and adjustment of the parts to be carried out with ease, and whose structure can be rendered simple and inexpensive as a whole, and yet which enables energy saving to be realized. The strapping machine comprising a band feeding/tightening means F adapted to conduct feeding, primary tightening, secondary tightening of a band B to be looped around a periphery of an object to be strapped and the like operation; wherein said band feeding/tightening means F is so constructed as to carry out feeding, primary tightening and secondary tightening of the band B by driving a roller 8 by means of a driving means M2 which is capable of being controlled among rotation, reverse rotation and stopped state.

Abstract: In a first embodiment, the crownpiece strap of a halter is subdivided, and Velcro-type hook-and-loop fastener material is affixed to the subdivided ends of the crownpiece, and the ends pressed together. Accordingly, the crownpiece will open, and release the haltered horse, if the halter becomes snared or entangled. In an alternative embodiment, a halter strap has the hook-and-loop fastener material on a terminating end thereof, with the hook material and the loop material separated therebetween. Then the strap is looped or folded over a halter ring, with the hook material and loop material adhered together. Again, upon the halter being strained, with tensile force being applied to the looped or folded over strap, the same will open to free the horse from any entanglement.

Abstract: An electricity driven device for rotating a rotary object to increase the rotational inertia of the rotary object. The device includes a fixed and non-rotating main shaft. A fixed element is secured with the main shaft. A rotary element is arranged so as to rotate about the fixed element at a periphery of the fixed element. A coupler is secured with the rotary object. The device also includes an electromagnetic field generating device that includes a first part and a second part. A plurality of coils and a plurality of permanent magnets are provided between the first part and the second part such that an electromagnetic field is generated therebetween when the coils are supplied with electric current, so that the first part and the second part perform relative rotation. The first part of the electromagnetic field generating device is secured on the fixed element. The second part of the electromagnetic field generating device is secured on the rotary element.

Abstract: A weeder which a user can use in a standing posture, comprises an operating shaft having a longitudinal bore and a grip provided at an upper end thereof, the operating shaft having a length long enough to allow the user to operate the operating shaft in the standing posture while grasping the grip, a support rod telescoped in the longitudinal bore of the operating shaft, a chuck mechanism arranged at a lower end portion of the shaft for pulling out the weeds by the roots, the chuck mechanism including a pair of first and second frames and a pair of first and second chuck pawls for pinching the roots of the weeds, the first frame supported to a lower end portion of the rod, the second frame pivotally supported to the first frame, the first chuck pawl provided at a lower end of the first frame, the second chuck pawl provided at a lower end of the second frame, each of the first and second chuck pawls having a lower sharp end and adapted to be stuck into the ground when the shaft is pushed down against the groun

Abstract: A cutting blade for a rotary lawn mower to increase the mulching effectiveness of the mower comprises a generally rectangular blade having a central portion and radially outermost end portions. The blade is curved over its entire length to have a concavely curved upper surface across the width thereof from one end to the other. In addition, the radially outermost end portions of the blade are twisted reversely relative to one another to cause the leading edges thereof to slant downwardly as they extend from the central portion of the blade to the tip portions of the blade.

Abstract: A rotary cutting head adapted for attachment to a conventional line trimmer including a cutting disk having a circular plate and a peripheral side wall integral with the circular plate. The peripheral side wall has a pair of integral gussets, each having a pair of radial bores passing therethrough. A flexible cutting filament is frictionally engaged within each pair of radial bores such that one end of the cutting filament extends outwardly from the peripheral side wall.

Abstract: A round baler having a main frame, a bale forming chamber on the main frame, a pickup for feeding crop material into the chamber, and a tailgate pivotally connected to the main frame for rearwardly discharging completed bales. The chamber is defined by an apron extending around a plurality of guide rolls on the periphery of the chamber, the tailgate, and a floor. The bale forming chamber varies in size from a core starting position to a full bale position. A crop loading monitor, having sensors in the bale forming chamber, provides signals representing compactness of the crop material during bale formation. The signals are utilized in a system that displays information in a bar graph format that enables the operator to enhance his capabilities for making properly shaped bales.

Abstract: A "V" rake is provided that comprises:a first rigid support frame;a second articulated frame sliding on the first frame, made up of a plurality of mobile arms hinged to each other and to the first frame;at least one joint to slide the second frame on the first frame for opening and closing of said arms;a plurality of fingered wheels arranged on the plurality of mobile arms; anda plurality of bearing wheels for transport of the rake; in which said joint comprises:support elements for sliding of the second frame on the first frame, constituted of:anti-friction support plates made of a material with a low friction coefficient; andbolts and relative spacer sleeves to position and contain the anti-friction support plates on said support elements.

Abstract: In a gas turbine combustion chamber cooled by means of impingement and convection cooling or pure convection cooling, a compensating flow of the cooling air is guided between adjacent cooling ducts (2) in such a way that the flow velocity in the cooling duct (2) always exceeds a critical limiting value even downstream of a local damage location (6) so that the temperature is less than a critical limiting value. The compensating flow is led past the combustion chamber outer wall. Connecting openings (5) are arranged between adjacent cooling ducts (2) and are respectively offset on the opposite sides of the cooling duct (2).

Abstract: A system is disclosed for regulating oil and fuel temperatures in a turbojet engine having an engine accessory driven at constant speed by a power transmission which is driven by the turbojet engine. The system has a first closed oil circuit for circulating oil through the turbojet engine, a second closed oil circuit for circulating oil through the power transmission, a fuel circuit for supplying fuel to the turbojet engine, an air/oil heat exchanger connected to the first closed oil circuit to pass oil in heat exchange relationship with air, an oil/fuel heat exchanger connected to the fuel circuit and to the first closed oil circuit downstream of the air/oil heat exchanger to pass oil and fuel in heat exchange relationship, and an oil/oil heat exchanger connected to the first and second closed oil circuits to pass oil in heat exchange relationship, the connection to the first closed oil circuit being downstream of the oil/fuel heat exchanger.

Abstract: A pulse detonator particularly for an aircraft power supply has a tubular housing. A valve sleeve rotates within the bore of the housing. The valve sleeve and housing have ports which align with each other at least once per revolution. A manifold is mounted to the exterior of the housing. The manifold has outer valves which open to admit fuel and oxygen simultaneously with the alignment of the valve sleeve ports with the housing ports. The fuel and oxygen flow into a detonation chamber where they mix. Igniters ignite the mixture to create a detonation wave which passes out the downstream end.

Abstract: A thrust reverser for a fan-type turbojet engine is disclosed for use in a turbojet engine structure having an engine housing defining a primary gas flow duct and a fan housing generally coaxially arranged about the jet engine housing and defining therebetween a generally annular secondary gas flow duct. The thrust reverser has at least one thrust reverser door attached to the fan housing by a forward linkrod pivotally attached to a forward portion of the thrust reverser door and pivotally attached to the fan housing, and a rear linkrod pivotally attached to a rear portion of the thrust reverser door and also pivotally attached to the engine housing. The linkrod attaching mechanism enables the thrust reverser door to be movable between a forward thrust position wherein the door outer surface is substantially flush with an outer surface of the fan housing and a reverse thrust position wherein the thrust reverser door redirects the gases flowing through the secondary gas flow duct to provide a reverse thrust.

Abstract: An air-fuel ratio control system for an internal combustion engine includes a LAF sensor and an O2 sensor arranged in an exhaust pipe at respective locations upstream and downstream of a catalytic converter. A desired air-fuel ratio coefficient used in calculating an amount of fuel supplied to the engine is calculated based on operating conditions of the engine, and corrected based on output from the O2 sensor. The air-fuel ratio of a mixture supplied to the engine is feedback-controlled to a stoichiometric air-fuel ratio based on the corrected desired air-fuel ratio coefficient. When the output from the O2 sensor falls within a predetermined range, the desired air-fuel ratio coefficient is not corrected, but held at an immediately preceding value thereof.

Abstract: In a vehicle, a floor has a lower side face. A tubular shell is disposed beneath the lower side face of the floor. The tubular shell defines an exhaust path and receives a catalyst module. An oxygen sensor includes a sensing element, a holder supporting the sensing element, and a protector covering the sensing element. The sensing element, holder and protector cooperate to define a space communicating with the exhaust path. The protector has a drain hole which is so disposed as to discharge water out of the space owing to gravity.

Abstract: A secondary air pump control system for an internal combustion engine having an air pump for supplying secondary air to the exhaust passage, comprises a voltage detector for detecting voltage applied to the air pump, a current detector for detecting current flowing through the air pump, and a switch for making a changeover between supply of electric power to the air pump and cutoff of same. The flow rate of secondary air supplied by the air pump is detected based on an output from the voltage detector and an output from the current detector. The operation of the switch is controlled based on the flow rate thus detected.

Abstract: A hydraulic circuit has a first PV pump connected to a valve group for powering a plurality of hydraulic mechanisms connected to the group, and a second PF pump connected in the circuit. In the improvement, a hydraulic line extends between the second pump and the valve group and there is a conductor sensing a mechanism load pressure. A valve network directs flow from the second pump to the valve group when the difference between the pressure in the hydraulic line and the load pressure declines below a predetermined value. Such decline "signals" that the mechanisms require more fluid than is available from the first pump alone. A new method for supplementing the flow of a first pump with that of a second pump is also disclosed.

Abstract: A supercharged diesel engine (1) with a mechanical supercharger (5) and a turbocharger (4) connected in series so that the pressure side of the supercharger is connected to the suction side of the turbocharger. The supercharger and the turbocharger each have an intake conduit (20, 25) which exits a common expansion chamber (22). The conduit (25) to the suction side of the mechanical supercharger (5) contains a nozzle (28), whilst the conduit (26) from its pressure side contains a double nozzle with an intermediate expansion chamber (30) which, together with the expansion chamber (22) and the first-mentioned nozzle, serve to suppress noise from the supercharger.

Abstract: A fuel injector for a gas turbine conbustor, the injector operating on gas and liquid fuels selectively. The injector has a central liquid fuel duct and jets, an annular gas duct and gas jets, and an outer annular combustion air duct. Operation on the liquid fuel tends to cause combustion products to be ingested into the gas orifices so impeding efficient gas combustion. The invention provides apertures (17) between the outer air duct and the intermediate gas duct whereby during operation on liquid fuel air bleeds into the gas duct and purges the gas orifices. As an added advantage, in a transition from liquid fuel to gas, the gas pressure is increased to a point where the air bleed is reversed and gas bleeds into the air duct. The pre-mixed gas/air is then emitted from swirlers surrounding the ring of gas jets. More efficient gas combustion results.

Abstract: A free-piston Vuilleumier heat pump in which displacers having a spring-operated resonance system, controls the heating energy and cooling energy outputs by controlling strokes of a hot displacer and a cold displacer. The control of the displacer strokes is performed by controlling the working gas temperature in a hot working space. Furthermore, the control of the displacer strokes may be performed by controlling a motor output while keeping the operation frequency of the motor mounted for at least one of the hot displacer and the cold displacer, in the vicinity of a resonance frequency which is determined by the driving system of the hot displacer and the cold displacer.

Abstract: A cooling apparatus especially for cooling high-temperature-superconducting lectronic components includes a cold gas cooling machine, such as a Stirling machine, thermally connected to a pressure vessel serving as a cold reservoir vessel. The pressure vessel contains a working medium having a triple point in the temperature range from about 60K to about 90K and a critical temperature at least as high as the maximum operating room temperature of the apparatus. The working medium is propane, for example. A cooling surface of the electronic component is thermally connected to the pressure vessel. In the method of operating the apparatus, the electronic component does not require continuous cooling. During a charging or refrigerating phase, the cooling machine freezes the working medium. Then during a useful cooling phase, the cooling machine is switched off and the electronic component is operated while being cooled by the frozen working medium.

Abstract: A device and method for laser cooling of a solid to extremely low temperature is disclosed, the device including an active cooling structure having a high purity surface passivated direct band gap semiconductor crystal of less than about 3 microns thick and a transparent hemispherical body in optical contact with the crystal. The crystal is itself cooled when illuminated with a laser beam tuned to a frequency no greater than the band gap edge frequency of the crystal. Cooling is caused by emission of photons of higher energy than photons entering the crystal, the additional energy being accounted for by process of absorption of thermal phonons from the crystal lattice.

Abstract: A freezing system for processing frozen edible product includes a freezing section, an inlet section, a product discharge section, and a recirculation section that selectively recycles processed product through at least a portion of the outlet section back to the freezing section.

Abstract: An automotive air conditioning system comprises a heat pump type refrigerant circuit charged with a first refrigerant and includes first and second internal heat exchangers disposed within an air conditioning duct and an external heat exchanger located outside the duct. A plurality of electromagnetic valves are selectively operated so that in one operational state the external heat exchanger performs as an evaporator and the second internal heat exchanger performs as a condenser, and such that in another operational state the external heat exchanger and the first internal heat exchanger perform as evaporators and the second internal heat exchanger performs as a condenser. A first pressure equalizing type expansion valve mechanism associated with the external heat exchanger has a P-T characteristic curve wherein a static superheat curve intersects with a saturated first refrigerant vapor curve when the temperature of the first refrigerant immediately upstream of the external heat exchanger is in a low range.

Abstract: A method and system for liquifying natural gas using a cryogenic process is described. The method is well suited for producing high methane purity natural gas which can be used as a vehicle fuel. The invention utilizes residue gas from a cryogenic plant as a natural gas feedstock. The natural gas feedstock is condensed by heat exchange with overhead gas from the demethanizer of the cryogenic plant. In the preferred embodiment of the invention the pressure of the condensed natural gas is reduced to a level at which it can be readily stored and transported by expansion through one or more Joule-Thomson valves.

Abstract: An apparatus for the production of knitted goods having integrated weft and/or warp threads, comprising a knitting machine having at least one needle bed, a guide extending along the needle bed in the vicinity of a knitting region of the knitting machine for the controlled movement of a control-actuatable thread carrier independently of a thread guide of a knitting feed system of the knitting machine, a guide carriage of the thread carrier which carriage is movable on the guide, a thread feed member provided on the thread carrier and having a feed region from which at least one thread is fed to the knitting region, and a control for the actuating of the guide carriage of the thread carrier.

Abstract: A knit slide fastener comprises: a warp-knit fastener tape having along one longitudinal edge a fastener-element-mounting marginal portion; and a row of continuous fastener elements knitted in the fastener-element-mounting marginal portion simultaneously with the knitting of the warp-knit fastener tape; the fastener-element-mounting marginal portion including anchoring chain stitches knitted of a plurality of parallel knitting yarns for pressing down successive legs of the continuous fastener elements, and a plurality of anchoring weft inlaid yarns laid in weftwise in a zigzag pattern and between the parallel knitting yarns of the anchoring chain stitches, the anchoring weft inlaid yarns being interlaced with the chain stitches.

Abstract: A door locking device with an antitheft mechanism comprises a main lock lever linked to a key cylinder and changed over from an unlock position to an antitheft position through a lock position, a sub lock lever linked to an inside lock button of the door and changed over to an unlock position and a lock position, and a linkage member having sufficient elasticity to connect the lock levers with each other between the lock position and unlock position. As the main lock lever is displaced from the lock position to the antitheft position the linkage member is elastically deformed and permits the sub lock lever to be left at the lock position, and as the main lock lever is displaced to the antitheft position the sub lock lever is composed so that it can not change over the main lock lever.

Abstract: A key with a blade portion which is bitted for actuating the tumbler pins of a cylinder lock has improved cross-sectional strength despite deep cut bittings which extend well into the thickness of the blade. The key is generally flat with upper and lower surfaces and opposite short side edges. The bittings are cut across at least one of the surfaces so as to extend arcuately through the thickness of the blade and one of the side edges. The volume of key blank material which is adjacent the deep cut bittings after the key is cut is substantially more than conventional keys and provides the key blade with increased strength to prevent breakage. The bittings are cut into the key blade by a rotary cutter wheel which is dimensioned to form an arcuate bitting surface rather than a flat surface.

Abstract: An improved security cylinder lock and key for operating the cylinder lock are disclosed. The cylinder lock has conventional tumbler locking structure and a secondary locking bar that operates independently of the tumblers. The secondary locking bar prevents operation of the cylinder lock until a properly configured key is placed in the keyway of the cylinder lock.

Abstract: An exterior door lock cover (22) comprising a flexible sleeve (24) which fits over an exterior exposed lock member (10) having a keyhole (12) on an exterior door (16). The flexible sleeve (24) will stop any contaminants (20) from entering the keyhole (12) in the lock member (10) which can accumulate and clog the lock member (10) and prevent the proper insertion of a key (26) into the keyhole (12) for operating the lock member (10).

Abstract: In a bender (e.g., press brake), work (plate material) can be bent by a bending tool composed of a pair of punch and die. A position detector (17) mounted on a movable side of the bending tool generates a limit point pulse (ULi) whenever the tool reaches a limit point. A timer (29) measures a time interval between the two limit point pulses (ULi). A time compare discriminate section (31) compares the time interval measured by the time with a reference time interval (TR), and further discriminates the current bending as trial bending when the time interval is longer than the reference time but as an actual bending when shorter than the reference time. Further, an arithmetic section 33 calculates a sum total number of times of the bending and the sum total time period spent in the bendings, separately in both of the trial and actual bendings. The obtained bending data are displayed or recorded to obtain an accurate man-hour in the bending processing.