Abstract: A flower stem cutter for an individual flower includes a liquid filled jar having a cover releasably attached. The liquid includes any antibacterial agent and feed. A flower stem guide is secured to a diametrical slot in the cover and projects inwardly into the liquid. The guide is triangular U-shaped unit defining a base wall in spaced relation to the opposite jar wall. The vertical edge of the guide sidewall projects inwardly. A guillotine cutting unit includes a cutting support blade secured to the lower inner end of the guide and a guillotine blade secured to a shaft journaled in the cover, with the guillotine blade abutting the edges of the U-shaped guide. The guillotine blade is resiliently supported on a shaft journaled in the cover for movement past the support blade to sever the stem under the protective liquid. The shaft is manually operated or connected to a small solenoid on the top of the cover.

Abstract: Apparatus for opening and closing the flexible screen of a greenhouse or the like include an elongated driving shaft rotatably mounted about a fixed axis of rotation, a prime mover such as a reversible motor for selectively rotating the driving shaft in either one of the normal and reverse directions, transmission gear apparatus operatively connected to the driving shaft, an elongated flexible driving shaft operatively connected at one end to the transmission gear apparatus adapted to be rotated through the transmission gear apparatus upon the rotation of the driving shaft, reduction gear apparatus operatively connected to the other end of the elongated flexible driving shaft and a winding rod operatively connected at one end to the reduction gear apparatus and adapted to be rotated through the reduction gear apparatus upon rotation of the flexible driving shaft.

Abstract: A method and device for eradicating vine-type vegetation by which a substantially closed container of liquid herbicide receives a stem of an unwanted plant and retains it immersed in the liquid, causing the plant to ultimately absorb a lethal dose of such herbicide.

Abstract: An auxiliary door opening device comprises an extendible motor driven rotatable output shaft that engages and rotates a pivot shaft of a conventional door closing mechanism. The pivot shaft is drivingly connected to a pair of pivotally connected arms of the door closing mechanism, such that rotation of the pivot shaft causes the arms of the door closing device to pivot, urging the door open. The door opening device is activated by a remote switching device so that a handicapped person may open the door with a minimum of effort. A limit switch causes the motor to shut off and the output shaft to retract out of engagement with the pivot shaft when the door is fully opened. A solenoid apparatus holds the door open long enough to allow a handicapped person to pass through the door before allowing the door closing mechanism to urge the door closed.

Abstract: Automatic base seal constituted of a profile molding destined to be attached to a panel, especially a door, pivoting in a door frame, and having an elongated sealing element able to pivot between a retracted position with respect to the base seal and a position of sealing when extended with respect to the latter under the effect of an actuating device.The profile molding has a section permitting it to be placed in and attached to the inside of a channel made in the bottom edge of the panel.

Abstract: A felt pad having a beveled front end is produced from a workpiece having a flat bottom with an adhesive thereon covered with a strip of paper or the like and a straight front end. The apparatus includes a rotatable shaft having mounted thereon an abrasive wheel and a wire brush wheel including a cylindrical portion of the same diameter as the abrasive wheel abutting the abrasive wheel and a tapered portion extending toward the shaft axis. A shear plate provides a cutting surface with the abrasive wheel. The workpiece is mounted on a table and fed parallel to the shaft axis with its forward end also parallel thereto. The rotating brush bevels the front end of the pad and fuzz still attached to the pad is removed as it passes between the abrasive wheel and shear plate. A shroud surrounds the wheels and a suction is applied thereto to draw off the materials removed from the workpiece.

Abstract: Broach sharpening machine in which a slide mobile in a direction transverse to the longitudinal axis of a broach to be sharpened supports a sharpening slide provided with a grinding wheel head, and a feeler unit arranged to determine the position of each broach tooth relative to the grinding wheel and comprising an articulated parallelogram in which a drag link is provided with a coupling element arranged to cooperate with the broach teeth, and is connected by two resilient cranks to a frame so that it rotates with this latter about a horizontal axis perpendicular to the broach axis; the feeler unit comprising a sensor for detecting the movements of the frame about its axis of rotation and the axial movements of said drag link, and a resilient element arranged to rotate said parallelogram so as to move said coupling element towards the broach.

Abstract: A method for producing or forming cutting surfaces at the cutter blade head portion of a cutter blade formed of hardened steel is disclosed. The hardened steel blades, provided with a cutter blade head portion, are contemplated to be used in the cutter head of a gear cutting machine. In order to form the surfaces of the cutter blade head in a relatively short amount of time, without impermissible heating of the cutter blade steel, there is formed during a first step a pre-profile of the blade head by means of a cutting-off device containing a cutting-off grinding disk. During a further step the pre-formed surfaces of the pre-profile are ground into cutter blade surfaces at the heretofore conventionally used grinding machine. An apparatus for performing the method contains a rotatable bearing or support unit, adjustable into different positions, in which there is mounted the cutting-off grinding disk.

Abstract: A structure for trapping hazardous dust in a work place which also serves as a walkway is disclosed. A removable cover member (12) includes a frame and a central support member (18), the frame and central support member (18) being covered with expanded metal mesh (22). The cover rests upon a shallow pan (10), the pan (10) having a raised central ridge (28) which is aligned with the central support member (18) in the cover (12) when the cover (12) is placed on the pan (10). The central support member (18) and the central raised ridge (28) cooporate to limit the deflection of the expanded metal mesh (22) under the weight of a user. The lower pan (10) is provided with a hook (34), for engaging other similar pans (10) for assembling a walkway or other desired configuration of dust collecting pans. The pan may be filled with a non-evaporating liquid to permanentaly retain dust falling into the pan, and also dust being scraped from the shoes of a user by the expanded metal mesh.

Abstract: An outer heat insulating structure on a building roof comprises a plurality of covering layer panels provided with a heat insulating layer and female screw members secured at corner portions in the covering layer panel in alignment with through-apertures provided therein with threaded rods capable of being threadedly engaged with the female screw members. Rubbery elastic members are arranged on a waterproof layer provided on the building roof and members which are secured to the rubbery elastic members and support rotatably lower ends of the threaded rods. A heat insulating layer is defined between the covering layer panel and the waterproof layer.

Abstract: A locking post comprising a vertical post with two spaced horizontal plates attached to the bottom portion of the post. Each plate is reinforced and supported by a steel rod passing through the post and running parallel and beneath the plate. The upper plate is positioned above the lower plate and is disposed in a direction which is generally at right angles to the disposition of the lower plate. The post is set in a hole in the ground with the plates being disposed beneath the surface of the ground. When the assembled parts are covered with dirt, the crossed plates will prevent removal of the post.

Abstract: A mobile house support system is described which provides an adjustable foundation for mobile homes which is resistant to earth movements such as is caused by earthquakes and to high wind forces. The support system unitizes a double wide mobile home by securing each section of the structure to the support members. Multiple I-beams are secured at right angles to the main support structure of the mobile home, a plurality of adjustable legs are carried by the support beam and connected to the main support structure of the mobile home and bearing blocks support the legs.

Abstract: A reinforcing tendon assembly for use in a concrete structure is disclosed which includes a pair of tendon anchorages, an elongated reinforcing tendon extending between and anchored by the anchorages and an electrically insulating conduit mounted on the tendon and extending between the anchorages. The improvement in the assembly is comprised of electrically insulating anchorage envelopes mounted at each of the anchorages in sealed relation to the conduit. The envelopes extend around the anchorages and isolate the tendon assembly from the concrete structure. Several isolating envelope constructions are disclosed, which include collars that encircle the tendon and are sealed to the tendon conduit and anchorage surrounding portions which extend from the bearing surface side around the outwardly facing side of the anchorage. A method for forming an electrically insolated tendon assembly is also disclosed.

Abstract: A two-part composite insulated masonry building block assembled as to both of its parts at the site of manufacture and transportable in assembled form to the construction site and including, as a first part, a block of concrete or other cementitious material having spaced outer and opposite side walls together with a trio of spaced transverse webs connecting between the side walls and defining a pair of equal cells or cavities, with at least two of the webs being provided with tapered air gaps or thermal breaks extending upwardly from the lower horizontal plane of the block, and as a second part, a longitudinally-extending insulative element of molded polystyrene or other suitable rigid foam material being complementarily configured with strategically-located tapered slots extending downwardly for the seating of the insulative element between and in general parallelism with the block side walls and into the tapered air gaps in interdigitating relationship and defining additionally an insulation capacity at ea

Abstract: An insulated roof includes a deck which acts as a diaphragm and a plurality of interlocked roof panels which carry vertical loads. A layer of insulation is also included, as are bearing plates.

Abstract: A pre-fabricated consumable spacer extender on locking plate for use with a consumable wall assembly for forming a concrete wall in order to form a column or pilaster. A plate or plates are adapted to engage and lock two or more tie members of the wall assembly in an extended length greater than the normal width of a wall block assembly which is usually one tie member in width.The consumable locking plate includes preformed slots to mate with projections on said tie members wherein when assembled the projections may be distorted to fixedly lock the tie members together creating a rigid strength member to assure proper columns when the assembly is filled with concrete.

Abstract: The invention herein is drawn to a plurality of structural products comprising segregated slabs, a process of making such structural products, and apparatus for performing such process of making such products and structures incorporating such products.The product comprises a plurality of slabs connected to each other only by an array of steel bar members extending therebetween and firmly attached thereto, whereby the slabs are movable relative to each other in directions transverse to the length of said bar members to the limit of flexibility of said steel bar members, so that many undesirable yet usually developed stresses and strains and failures developed in conventional reinforced concrete structures are obviated, and a light, strong, low-cost, thermal insulating structure is provided.

Abstract: A starter strip for anchoring, to a wall, the bottom margins of the lowermost course of an array of horizontally elongated siding panels each secured to the wall along its top margin and each having an inwardly projecting, upwardly opening channel flange along its bottom margin. The starter strip includes a leg mountable on the wall, a locking flange arranged to be received within the channel flanges of the panels, and resilient biasing means such as a spring leg for acting against the inner surfaces of the panels to urge the bottom margins of the panels outwardly and thereby to hold the inner legs of their channel flanges against the inner edge of the locking flange.

Abstract: A relatively flat sheet metal structural web member for interconnecting a pair of generally parallel spaced-apart chord members to form a floor truss or the like. The web member is generally V-shaped, comprising first and second legs integrally joined at one of their respective ends, and a plurality of teeth struck from opposite ends of the legs for being driven into the chord members. The teeth struck from of each leg are oriented to present their relatively wide surfaces generally broadside within the range of 45.degree.-90.degree. with respect to the central longitudinal plane of the leg for maximizing the resistance of the teeth to movement through the wood chord members so as to increase the load-holding capacity of the web member.

Abstract: Disclosed is a packaging machine which forms, fills, and seals bags in vertical orientation, and includes a heat sealing and severing jaw mechanism located below a vertical forming and filling tube. One of the sealing jaws includes a defective package detector which responds to resistance to pressure exerted on the filled package.

Abstract: A Method and Apparatus for automatically packaging granular or powdered material in envelopes wherein a belt supported horizontal column of material of uniform cross section is intermittently advanced longitudinally toward an envelope filling station in such equal increments that during each advance a leading end column section of predetermined volume falls into an envelope newly positioned at said station.

Abstract: A case opening and sealing apparatus comprises a magazine having a plurality of flattened case blanks stacked therein, a conveyor underlying the magazine, and a plurality of suction cups for opening each case into tubular form for subsequent filling. Each forward case blank in the magazine is precisely ejected into proximity with the suction cups for opening purposes by a shuttle mechanism which functions to sequentially (1) engage a lower edge of the case blank to initially prevent removal thereof from the magazine, (2) move the case blank upwardly to release the lower edge thereof from the magazine, and (3) push the case blank downwardly onto the conveyor and into close proximity with the suction cups which function to open the case into tubular form.

Abstract: The tiedown strap is formed of neoprene or other suitable resilient material and has a rear extension having a slot for detachably engaging the rowel, a front loop stretchable onto the front of the boot heel and side extensions having holes for detachably engaging a button on the corresponding side of the spur. The instep strap is formed of similar material and has an enlargement at each end for detachable engagement with the spur buttons. When the instep strap and tiedown strap are used together, the side buttons of the spur may be pivotal between upper and lower positions.

Abstract: A self-propelled crop harvesting combine having a variable speed crop threshing and separating rotor. The crop material is delivered from a conventional cleaning system into a grain holding tank. A system is provided to determine the ratio of damaged to undamaged grain from predetermined amounts of grain delivered to the grain tank. An electronic control system varies the speed of the rotor in response to changes in the ratio whereby the speed of the threshing mechanism is automatically varied to minimize grain damage in the threshing process.

Abstract: A cotton harvester for mounting on a tractor or similar vehicle, wherein a transversely extending cross auger frame is supported by a lift frame assembly rearwardly of the rear tractor wheels. Individual cotton harvesting units are supported above the ground by the cross auger frame and include plant passages located generally rearwardly of the rear wheels. The lift frame assembly is pivotally connected to the tractor adjacent the rear axle and includes four-bar linkage structure for positioning the row units in the desired attitude as the cross auger frame is pivoted up and down. The linkage permits the row units to be positioned closely adjacent the rear wheels without interfering with them as the cross auger frame is raised or lowered. A cotton receiving basket is supported directly above the tractor.

Abstract: A pair of generally flat, horizontally disposed mowing rotors at the front of the machine sever the standing crops as the machine is advanced and, by creation of an air stream as well as through a physical throwing force, the rotors propel the severed crops rearwardly through a centrally disposed passage to a conditioning zone adjacent the rear of the machine where such severed crops are treated by the conditioner to expedite curing of the crops when they are thereafter directed onto the ground in a swath or windrow.

Abstract: An apparatus for making a doubled yarn draws a core yarn off a core-yarn supply, pulls the core yarn longitudinally in a travel direction along a yarn path, and drafts the core yarn longitudinally along this path. A tube through which the yarn passes longitudinally extends along the path downstream of the drafting station has relative to the yarn-travel direction an upstream portion and a downstream portion. A current of air is passed longitudinally in the travel direction through the upstream tube portion and another current is passed longitudinally opposite the travel direction through the downstream portion. Thus upstanding fibers are first laid against the core yarn to be integrated into it as same twists in the upstream tube portion and any remaining fibers are laid back against it so that a winder yarn can be wound around the core yarn immediately downstream of the tube to bind in these fibers too.

Abstract: A method and an apparatus for the production of fancy yarn includes the supply of elongate fancy material pieces (17) by gas under pressure to suction-loaded spinning cylinders (10) which spin the fancy material pieces together with separately supplied basic yarn pieces to form fancy yarn. The fancy material pieces are flung by means of the gas under pressure, which is preferably generated in a jet injector (14), against a screen (7) which is located in the region of the nip between the spinning cylinders. Elongate fancy material pieces which have become rolled together during transport to the screen (7) are straightened out after impingement against the screen (7) by the suction prevailing in the nip of the spinning cylinders (10) whereby the fancy material pieces are given the desired elongate form in the fancy yarn.

Abstract: The invention relates to a spinning or twisting machine with a plurality of upright textile spindles, wherein the spindle shaft of each textile spindle is coaxially firmly attached to the rotor shaft of an electromotor and wherein the housing of the electromotor includes upper and lower bearing brackets that are disposed on a spindle rail and for the purpose of simple and precise centering of the electromotor housing these bearing brackets are radially adjustable on the spindle rail independently of one another.

Abstract: The invention relates to jewelry chains by electro-forming wherein a jewelry chain as an original material is thickened by an electro-forming to obtain fattened chain links thereof such that the fattened chain links not only make the distance between interlinked pivotting points of each chain link of the chain relatively smaller to make the chain in a denser construction but also adapt the chain for subsequent various processes such as pressing, swaging and the like to obtain more novel chains in design and style. Further, it relates to an apparatus suitable for the electro-forming process.

Abstract: In the present invention, a second expansion chamber which includes a second diffuser is provided in pneumatic connection with the prior art first expansion chamber of an exhaust system for a two-cycle engine. The second expansion chamber creates a second pressure drop or relative vacuum substantially adjacent the point of pneumatic connection between the first and second expansion chambers, which acts to draw-out the exhaust gases present at the rear-cone shaped portion of the first diffuser. The second pressure drop or relative vacuum created by the second expansion chamber of the present invention thus overcomes the deficiencies caused by the pressure increase produced by the rear-cone shaped portion of the first diffuser. Several embodiments of the present invention are disclosed.

Abstract: A method and apparatus uses energy in an energy output system having a main power source, an energy transmission system and a mechanical output. A first portion of energy generated with the main power source is used to drive the mechanical output under operating conditions. The unused second portion of the energy is diverted to an energy storing means. The second portion of energy is then stored and regenerated on demand. The energy may be used directly to augment the energy requirements in the energy output system during peak periods. In a specific embodiment, a compressed air system is used for storing the energy not used in driving a mechanical output connected to the power source by an energy transmission assembly. The energy transmission in the energy output system is a hydraulic fluid transmission system. A hydraulic fluid diverting mechanism is used to maintain the flow of hydraulic fluid to the mechanical output and to the compressed air energy storage system.

Abstract: A tank assembly for a hydraulic system including a hydraulic load device and a transmission. The tank assembly comprises a tank, a weir mounted on the bottom wall of the tank, which weir functions as a partition wall for dividing the inside of the tank into a first and a second reservoirs and allows fluid to overflow from the first reservoir to the second reservoir, the first reservoir being adapted to receive fluid from both the hydraulic load device and the transmission, a dust collector mat disposed on the bottom wall of the tank for collecting dust from drained fluid, and a strainer mounted inboard on one of the side walls of the tank and extending within the second reservoir.

Abstract: A gear machine comprises two helical gears (1, 2) in mutual mesh for compressing or pumping a fluid. The suction side of the machine can be made conventionally. The outlet port (4) of the machine is made as a plurality of holes (14), extending in towards the meshing zone at one side of the gear pair. The plurality of holes opens at one end (14a) within a Y-shaped area comprising the union of the surfaces which are each defined by the respective gear top and bottom circles (K, L) between a plane (P) through the axes of the gears and a gear radius (R) forming an angle to the axis plane at most attaining B .times. (1/R) .times. tangent .beta., where B is the width of the gear pair, R is the outside circle radius of the respective gear, and .beta. is the helix angle of the gears. At their other ends (14b), said holes are connected to a duct (6) at axially separated places in the duct, in the same order as they in the peripheral direction of the gears, open out onto said end surface.

Abstract: A master cylinder for a vehicular brake includes a cylinder closed at one end and open at the other end, a sleeve slidably received within the cylinder, a piston assembly including a pair of pistons integrally connected together, a stop on the cylinder for confining the piston assembly within the cylinder, and a spring disposed between the sleeve and piston assembly for normally biasing one end of the sleeve against the closed end of the cylinder and the piston assembly against the stop. One of the pistons and the closed end of the cylinder define a first pressure chamber therebetween and the pistons define a second pressure chamber therebetween. In operation, the sleeve is moved towards one of the pistons in response to a difference in the amount of remaining oil between the two pressure chambers against the force of the spring.

Abstract: The invention relates to a method for treating moist pulverulent material and is particularly useful for removing the moisture from such material. In one aspect of the invention, the material is hot foundry sand, where the sand is first moistened by the addition of water and then the moist sand is treated in a vibrating container under vacuum.

Abstract: An absorption refrigeration system is used as the cooling load for a process such as a stripping operation by operating the system in response to the heat supplied. Because heat supply is determinative, the system is falsely loaded by bypassing refrigerant back to the solution.

Abstract: The resonant frequency of an electroacoustic transducer controls the frequency of an oscillating circuit while the transducer vibratile element remains unobstructed. An extended small area portion of the vibratile element is mounted at a fixed distance from the sub-freezing surface of a freezer compartment on which a specified layer of frost is to be detected. When the frost layer builds up to the specified thickness it makes contact with the extended vibratile tip portion of the vibratile element and inhibits the vibration of the vibratile element thus causing the oscillator circuit to stop oscillating. The detected change in the circuit condition is used to initiate the defrost cycle.

Abstract: A temperature probe for use with an air conditioning device of the type including a heat exchanger subject to possible freeze-up, such as an evaporator tube array. The probe includes a substantially rigid support member having an elongated portion with a temperature sensor mounted thereto, as within a recess therein, for insertion into the tube array. Electrical temperature signals from the sensor are transmitted, as by electrical leads, to a use location and device. The rigid support member of the probe includes a limiting portion extending transversely of the elongated portion for limiting insertion into the tube array and thereby positioning the sensor. A second temperature sensor may be located on the support member so as to be external of the tube array for developing the air temperature signal. Both sensors may be thermistors. The elongated portion of the support member is sized for close-fitting insertion between a pair of fins which normally extend transversely of the tube runs.

Abstract: A transport refrigeration machine for conditioning the interior of a trailer comprising a refrigerant compressor, a condenser assembly including a condenser fan, and an evaporator assembly including an evaporator fan. The machine further comprises a fan shaft for driving the condenser and evaporator fans, an engine for driving the compressor and the fan shaft, and a frame supporting the refrigeration machine. The frame includes a box sub-frame, a condenser assembly support sub-frame, an evaporator assembly support sub-frame, and a shaft support sub-frame rotatably supporting the fan shaft.

Abstract: A storage bin for bulk ice has upper and lower sections that completely enclose a space in which ice cubes are stored. These ice cubes are produced by an ice making machine and are delivered to the ice bin by a conveyor which is inclined upwardly away from the ice making machine. One of the walls on the upper section of the ice bin is inclined to accommodate the inclination of the conveyor and this wall has an opening through which the ice cubes are discharged into the enclosed space. The lower section of the bin has an opening through which the ice cubes are withdrawn for bagging, while the upper section has another opening that provides access to the interior of the bin for breaking up ice jams. Both of these openings are normally closed by doors. Refrigeration equipment extracts heat from the enclosed space of the bin, and the water line that leads to the ice making machine passes through the space so that the water is precooled, thus rendering the ice making machine considerably more efficient.

Abstract: An apparatus for refrigeration treatment is used in cryomedical treatment for applying gas of extremely low temperature onto an affected portion of a patient. In the flow system of the apparatus, there are a liquefied gas source, a temperature controlled bath and a conduit pipe having a cup at its end to be placed over the affected portion. The bath contains a liquid medium of high specific heat in which are immersed a mixing cylinder and an evaporator which are mutually connected with a plurality of tubes. The liquefied gas supplied from the source to the evaporator is vaporized and flowed through the tubes to the cylinder where the vaporized gas is mixed with a liquefied gas directly supplied from the source at an optimum gas temperature.

Abstract: The disclosure concerns a multiple-spline hub that is particularly useful for a telescopic shaft for transmitting torque. There is a thin-walled tube section which is developed as a toothed profile tube having teeth of trapezoidal cross-section. There is a thicker-walled tube to which the connecting element of the telescopic shaft, such as a joint fork, is attached. The toothed tube section is inserted in the bore of the thicker-walled tube and the crests of the teeth of the tube section engage the interior surface of the bore of the tube. The crests of the teeth are bonded by brazing to the bore of the thicker-walled tube.

Abstract: In an automotive drive shaft assembly including a joint housing with a flanged, open end, there is provided according to the present invention a closure member for closing the open end, which closure member comprises a covering portion placed on the outer side face of the flange. The periphery of the covering portion is formed with a plurality of arms defining cantilever springs and the free ends of the arms are inturned to define detents engaging the inner side face of the flange. The closure member can be readily installed on the flange with a snap or resilient action to close the open end.

Abstract: A weft thread laying apparatus for warp knitting machines includes a carriage having a plurality of thread guides disposed thereon perpendicular to a pair of endless transfer chains which carry the weft threads from a pickup area to a delivery area proximate the needed bed of the machine. The transfer chains are additionally accelerated in the pick-up area when the carriage, moving transversely to the chains, is on the outer side of the transfer chains, thereby permitting thread guides to lay thread around holding elements disposed on the transfer chains without requiring the carriage to move in more than one plane. The carriage is provided with a plurality of thread guides which have a skirt portion larger than its stem portion to insure that the threads do not become entangled when laid around the holding elements on the transfer chains.

Abstract: An automatic towel dispenser whose housing contains a washing and a drying chamber for an endless towel which can pass therethrough and has a cleaned section available for use and extending from the housing between a delivery slot and an inlet slot of the housing. The towel is movable from the inlet slot to the washing chamber and from the drying chamber to the delivery slot, and the housing also contains a first supply chamber for variably stacking a plurality of soiled towel sections and a second supply chamber for variably stacking a plurality of cleaned towel sections. The washing chamber has at least one wash and at least one rinsing tub through which the towel can pass in the form of loops. The dispenser is further provided with a water feed valve and a water discharge valve connected to the washing chamber. The water feed valve is actuatable at the start of a washing cycle and the water discharge valve is actuatable on completion of the washing cycle.

Abstract: The present invention relates to a kind of mechanism of combination locks applied to suitcases with changeable combinations to secure high accuracy of positioning and reduce the probability of disordered combination, and is characterized by its simple structure modeled by one-piece pattern casting.

Abstract: The security device of the present invention is mounted in the floor of a building adjacent the hinge side of a door to be made secure. The security device has elements which can be elevated from their storage position to engage against the inner face of the door to prevent the door from being opened beyond a minimum amount. A lock is provided for holding the elements in their elevated position.

Abstract: A key holder which includes a body and a key pivotably mounted on the body and movable between an operating position in which the key is disposed outside of the body and a non-operating position in which the key is housed within the body. The key holder may also include a biasing member for maintaining the key at the operating position thereof or the non-operating position thereof and the key may include a stopper member disposed thereon which is engageable with the body to maintain the key at the non-operating position thereof.

Abstract: A key holder which includes a body and a key pivotably mounted on the body and movable between an operating position in which the key is disposed outside of the body and a non-operating position in which the key is housed within the body. The key holder may also include a biasing member for maintaining the key at the operating position thereof or the non-operating position thereof and the key may include a stopper member disposed thereon which is engageable with the body to maintain the key at the non-operating position thereof.