Abstract: An air passage or outlet for imparting a spin flow to air passing therethrough, is economically produced of only two basic sheet metal components. The sheet metal has a good fire resistance capability and can be easily coated with an individual paint color. One sheet metal component is a sheet metal plate (4) with punched-out tongue-shaped air guide vanes (2) that are arranged at a spacing concentrically around a central axis perpendicular to the plane of the plate (4). A central hub area (3) remains connected to an outer area of plate (4) by spoke-type lands separating the air flow holes. The other sheet metal component of the air passage is a connector piece (5) having, e.g., a cylindrical neck (6) surrounded at its lower end by a collar (7). The inner diameter of the connector piece (5) is so dimensioned that radially outer edges of the guide vanes (2) are held in place by a press-fit against the inner sides of the cylindrical neck of the connector piece (5).

Abstract: A ventilated sliding closure having a ventilator integral with the frame head. The closure includes a frame which consists of a frame head, a sill and two vertical jambs. The frame supports two or more panels, at least one of which is a horizontally sliding panel. The frame head includes two parallel spaced apart support rails which engage longitudinal grooves in the top rails of each panel. The support rails include apertures which provide an air flow path through the frame head. A closure of the hit-and-miss type for the apertures is preferably included in the frame head to provide selective control of the ventilation.

Abstract: For an outdoor display of items for sale and for protecting such items against environmental elements such as dust, dirt, moisture, sunlight and temperature variations and the like, a lightweight box-like structure is formed of radiation reflecting material and is provided with venting apertures and includes manually movable transparent closure means formed in at least one side wall of the enclosing structure for affording ready visibility and access to items disposed within the enclosure.

Abstract: A baking apparatus includes cover molds and pan molds having recesses adapted to be engaged to define baking chamber as the cover and pan molds engage, a device for feeding dough into the recesses of the molds and a device for shaping the doughs in the recesses of the molds into desired shape. The engaged cover and pan molds containing shaped doughs are fed into an oven for baking treatment and discharged therefrom for air cooling and separating the cover mold from the pan mold for unloading baked confections.

Abstract: The invention relates to a sheet-fed rotary printing press for multi-color printing with an in-line arrangement of the printing units. Each printing unit comprises a plate cylinder, a blanket cylinder and an impression cylinder, all of a single diameter, as well as three sheet-transfer drums. The sheet-transfer drums of single diameter are provided for printing jobs using a one-sided multi-color printing process. On the other hand, the design for recto-and-verso printing is provided with a storage drum and a turning drum, with the storage drum being of double diameter. Depending on the job structure, the printing press according to the invention can later be converted at the printing shop from one design to the other.

Abstract: An ink distributor roll is made of base rubber and two soft rubber helixes. When the ink distributor roll is used adjacent another roll, the soft rubber helixes deform to form pockets between the ink distributor roll and the other roll. The pockets move ink from the end portions of the ink distributor roll toward the center portion of the roll to prevent a buildup of ink at the end portions of the roll.

Abstract: A rotary printing press is used for printing standard pages and for double truck printing of the centerfold page. This is accomplished by mounting side by side printing plates to locking devices in the rotary printing press. The printing plates are positioned by two registrations which are selectively movable toward and away from each other to one of at least two predetermined fixed positions. In one of the fixed positions, the standard printing takes place, and in the other fixed position, the printing press is used for double truck printing.

Abstract: A safing and arming device for a munition fuze operates without the use of stored energy. The safing and arming device is controlled by a solenoid rotating a rotor and shutter in a ratchet fashion. As the shutter is rotated, a detonating device is brought into position over an explosive lead charge. The design of the rotor and shutter ensures that the detonator is not aligned with the lead charge until after several safety steps have been completed, after which the shutter quickly arms the fuze. Energy is generated for fuze arming during the completion of the safety steps. The design of the safing and arming device minimizes power requirements for safing and arming the fuze.

Abstract: A bomblet projectile includes a projectile body, a fuse housing on the body at the rear end thereof; and an unwindable stabilization band for stabilizing the position of the projectile while dropping. The band forms, in the deployed state, a loop having leg portions terminating in fastening regions secured to the fuse housing and a dome portion flanked by the leg portions. The band has a length and different widths along the length. The band has its greatest width in the dome portion and its smallest width in the leg portions, externally of the fastening regions.

Abstract: In a missile for setting down a load ejected from the missile after its launch, with at least one parachute that is attached to the load being packed in a container mounted in the missile, and with the cords of the load-carrying parachute being attached to an intermediate member coupled to the load, the intention is to reduce the size of the operational parts to be transported with the missile and improve the operation thereof during the setting down process. For this purpose it is envisaged that the container should be in the form of a two-part casing having an upper part which can be sprung open, and a plate-shaped lower part having a portion fixedly connected to the load and a support disk as the intermediate member attached to cords of the parachute. The support disk is capable of being folded out from the lower part portion while remaining connected thereto by a connecting element.

Abstract: A mine assembly comprises at least one charge module having a cylindrical shape, and an upper and lower circular surface end. An activating module for detonating the at least one charge module is operatively connected thereto. The activating module has at least a lower cylindrical end and interconnecting means provided at the upper circular end of the charge module. The interconnecting means includes a ring-shaped element having an inner diameter which corresponds to an outer diameter of the lower end of the activating module and to a diameter of other charge modules. The ring-shaped element forms an upwardly extending projection along the circular upper end surface of the charge module to provide a space thereon adapted for receiving a cylindrical end of one of the modules.

Abstract: A practice round and firearm system wherein the round [10] includes a casing [11] forming a cavity [16] to receive a movable insert [20]. The insert forms a recess holding a projectile [30] and by detonation of a primer cap [36], the resulting expanding gases propel the insert and projectile forward toward the barrel passage until the insert strikes the chamber forward wall [46 to allow the projectile to continue through the barrel passage. The casing and insert thereafter move rearward with the slide [50 for automatic extraction of the spent casing from the chamber [44].

Abstract: A round for placement and firing in the barrel of a large caliber gun, the round comprising a cartridge case defining a cylindrical chamber having axially opposed open and closed ends, a plurality of axially-adjacent annualr explosive charges coaxially-disposed in the chamber, the charges defining a bore coaxial with said chamber and each charge being shaped to generate on detonation a predetermined shock wave in the case, a projectile disposed in the chamber proximate the closed end, the projectile having a trailing end shaped to convert shock waves generated by detonation of the annular charges to projectile acceleration, an explosive in the case for initially propelling the projectile axially through the bore toward the open, end, an electrical detonator for each annular charge responsive to an electrical signal, and a power source and circuit for generating the electrical signal in response to axial movement of the projectile in the bore.

Abstract: A sabot bullet having a bullet body and sabot segments defining an outer cylindrical surface in surrounding relationship to the bullet body. The bullet body has a pair of spaced conical parts interconnected by a central part of cylindrical configuration. The central part increases the strength of the bullet body and assures that the bullet body will not break at the central part during penetration of the bullet body in a target. Another embodiment of the sabot bullet includes a bullet body having a front part of metallic material and a rear part of a second material, such as plastic or the like. The second part, being lighter in weight than the first part, reduces the overall weight of the bullet body to assure a higher velocity of travel of the bullet body with greater accuracy due to its lighter weight. An armor piercing sabot bullet is also disclosed.

Abstract: A track installation for vehicles of a transport installation comprises a track supporting the vehicles at their vehicle carriages and possessing an inbound side and an outbound side for the vehicles. A conveyor is operatively associated with the track and contains entrainment members for entraining coaction with the vehicles. The track constitutes a generally or essentially horizontal track structure and extends along the complete length of the conveyor. Vehicle stops defining stop or parking positions for the vehicles are distributively arranged along the track. Each stop is provided with an actuation element and each stop or parking position has a vehicle sensor as well as an interrupter for disabling the entrainment of the there parked vehicle by the conveyor. The vehicle sensor of each stop or parking position is connected with the actuation element of the stop and also with the interrupter of the preceding or upstream located stop or parking position viewed in the vehicle conveying direction.

Abstract: A portable amusement ride incorporates a multi-functional trailer which can serve for hauling the amusement ride, when disassembled, and serve as an elevated track portion of the ride, when assembled. Electrically powered vehicles are guided and powered over an electrified track having a main enclosed path, and an alternate loading area for discharge and pick up of passengers. Automatic launch and vehicle exit features between the main path and loading area prevent vehicle collisions, with minimum requisite operator activity. A pick-up assembly carried on the vehicle both guides and electrically powers the vehicle as it moves over the track. The track has an electrified pair of members also forming a guidance channel in which the pick-up assembly from the vehicle is received. The configuration of the pick-up assembly and its interaction with the electrified guidance channel causes proper electrical pick-up substantially regardless of the terrain formed by the track over which the vehicle travels.

Abstract: A greenhouse transport system for moving plants and plant trays through a greenhouse comprising a cart including a carriage assembly having at least one roller extending upwardly from the cart, an overhead track assembly including at least one track channel to selectively receive the roller to support the cart thereon, and at least one lift station including a lift member movable between a lower and upper position having a lift channel formed thereon to receive the roller therein and an alignment assembly such that when the lift member is in the lower position the roller is operatively disposed in the lift channel and the lift channel is axially aligned relative to the track channel by the alignment assembly as the lift member is moved from the lower position to the upper position to permit the cart to be moved from the lift channel to the track channel whereby the roller is disposed within the track channel for movement through the greenhouse on the overhead track assembly.

Abstract: A closed loop transit system that transports passengers in vehicles to a destination of their choice where they exit a main line to a shunt line and station. The system has automatic means for bypassing vehicles past stations that are full and moving excess empty vehicles from one station to a next station that does not have excess vehicles.

Abstract: Two embodiments of monorail conveyor systems wherein the conveyor is operated by a drive motor that has its center of gravity positioned between the vertical sides of the monorail so as to improve stability and to permit the use of a single friction driven wheel. A gripping device is carried by the conveyor mechanism by a cable system so that it can be raised and lowered through a wide variety of heights.

Abstract: This invention relates to a convertible road/rail power vehicle including a tractor unit provided with retractable wheel sets and rail equipment that enable it to be operated on either highways or railway tracks and when on rail to pull a multiplicity of loaded or unloaded railway cars.

Abstract: For displaying items at a point of purchase, a pair of separate upright supports are arranged disjointably to engage shelf ends secured to the ends of shelves which themselves constitute a plurality of transversely severable components whereby shelf length may be reduced together with pivots for disjointably securing each shelf end to one of the upright supports so that the effective length and capacity of the shelves are rendered adaptable for particular applications.

Abstract: The device, fashioned, for example, as a cashier's safe (3), has two openings (12) for the issuance of paper currency (2) and valuable objects, stored in strongboxes (1), from the interior (4) of the safe. A pivotable member equipped with conveying means takes over the strongboxes (1) and, respectively, the bills (2) from respectively one conveyor arranged in the interior (4) of the safe and pushes them through one of the openings (12). After having been emptied or loaded, the strongboxes (1) are again retracted by the member and transferred to the conveyor (23).

Abstract: A regenerative incinerator comprises a combustion chamber, a regenerator having a plurality of discrete segments each of which has a heat exchange material therein and a valve for sequentially directing contaminated gas, purge air and cleansed gas to and from discrete segments of said regenerator, selectively.

Abstract: Seedlings are planted in dry areas containing water at a lower level by i) determining the depth of the water-containing level; ii) selecting a seedling breeder having a length corresponding to the depth of the water-containing level, said breeder comprising an elongated cylindrical body having an opened upper end, a plurality of openings in the periphery of at least the lower portion of the body, a length which corresponds to the depth of water-containing soil in said planting place, means covering said plurality of openings and a thin tube extending to the deep portion of said body for supplying water thereto; iii) filling said seedling breeder with culture soil; iv) planting the seedling in the seedling breeder; v) breeding the planted seedling in the breeder until the roots of the seedling reach said plurality of openings; vi) removing said cover means; and vii) implanting the breeder in a seedling planting place by inserting the breeder into the ground of said planting place.

Abstract: For the purpose of attaching a strip of cloth provided with a zip-fastener component to a trouser forepart, first a rim of the strip of cloth and then the rim of the trouser forepart are folded over. The strip of cloth is arranged above the trouser forepart. Both folded-over rims are brought into a position relative to each other which they occupy after being joined together. Then they are brought into mutual contact and joined together with only a single seam in only one sewing operation. Thus very simple handling of the parts to be sewn together is achieved along with a very simple design of the required sewing units.

Abstract: In the sewing machine of this invention, the operator can confirm on the selected-mode display M9 provided in the display M4 that the selected mode is for writing the pattern and whether the selected pattern is for only one use or the selected pattern is to be stored in the nonvolatile storage M7. The pattern selector M2 selects at least two patterns from the pattern-data storage M1. The arrangement of the selected patterns is stored in the pattern storage M3. The stored arrangement of the patterns is stored in the nonvolatile storage M7. Through specified processes, the patterns reader M8 develops the arrangement of the pattern stored in the nonvolatile storage M7 into the pattern storage M3. The controller M6 sequentially reads the arrangement of the patterns developed in the pattern storage M3 and drives the sewing mechanism M5 to form the arrangement of the patterns on fabric. When the pattern to be used repeatedly is thus once entered, the pattern can repeatedly be stitched on fabric.

Abstract: A lift for water vehicles comprising a pair of vertical pipes or tracks attached adjacent their upper ends to one side only of a dock sructure which is positioned alongside a body of water, a tank assembly having a roller assembly thereon for engaging the sides of the pipes for rolling upwardly and downwardly thereon, the tank assembly having a tank mounted thereon and an upper opening for introducing air into the tank to displace water therefrom through a lower opening at the bottom of the tank so as to cause the tank to rise, the tank assembly having a pair of spaced padded blocks for supporting a water vehicle thereon, the roller assembly having rollers thereon adapted to rise along the inboard sides of the pipes when the tank assembly moves vertically in response the introduction of air to and removal of air from the tank, whereby, when a water vehicle is supported on the padded blocks and the tank assembly is in its lowermost position, air can be introduced into the tank while water is forced outwardly f

Abstract: A boat hull having inner ribs and outer chines interconnected by an inverted V-shaped planer surface and with the ribs and outer chines being pronounced at both sides of the stern of the hull and gradually disappearing as they converge and form strakes extending towards the bow of the hull. With the keel of the hull as level, the outer chines extend downwardly from the hull to be below the outermost extremities of the ribs.

Abstract: The device comprises a thruster assembly which consists of a housing, thruster motor, thruster propeller, and thruster motor control device. When integrated into a stern mounted main drive, the thruster housing becomes integral with the main drive. The thruster is situated on the transom just above the bottom line of the hull with its axis in line with the transom, horizontal with the water line, and at right angles to the main drive. The thruster control device is connected to the boat's steering wheel linkage so that when the wheel is turned the thruster is activated. Turning the steering wheel causes the thruster to push the boat's stern at right angles to the main drive thus causing the boat to turn. The direction the wheel is turned determines the direction of thrust (right or left) and therefore, the direction the boat turns. Additionally, thruster control can be achieved by connecting the thruster control device to the throttle/shift lever.

Abstract: A boat fender provided with a reel about which the line, or rope, from which the boat fender is normally suspended when in use, is wound for containment and storage when such line, or rope, is not in use. The storage reel provides a means for the quick, facile storage of the line used to suspend the fender, and for release of the line as required.

Abstract: A mechanical interlock system is disclosed having an interlock segment that s mechanically coupled to the breech door, to the slide valve, and to the muzzle door of an associated torpedo tube in such a way that the interlock segment positively prevents opening, or the initiation of the opening sequence, of the breech door if either the corresponding muzzle door or slide valve for a particular torpedo tube is open, and that positively prevents opening, or the initiation of the opening sequences for, either the corresponding slide valve or muzzle door of a particular torpedo tube, if and as soon as the breech door is free to open, is opened or if its opening sequence is once initiated. The interlock segment and mechanical coupling of the interlock system of the present invention exhibits improved breech door stress performance and reduced manufacturing, inventory, repair and other costs.

Abstract: A sea anchor comprising a hollow body having a front part and a rear part and at least one water outlet located adjacent to the rear end of the front part. The front part has water inlet openings, and the rear part is moveable relative to the front part between first and second positions. In the first position, the forward end of the rear part engages the rear end of the front part to close at least one water outlet. In the second position, the forward end of the rear part is separated from the rear end of the front part to define the water outlet. The front part contains attachment means for attaching a line for towing the body in a forward direction.

Abstract: A modular sliding-seat rowing shell that is relatively inexpensive and that can be constructed to provide any of three rowing configurations. The shell includes a bow section, a stern section and a center section. The bow and stern sections have the same number (e.g., 2) of rowing stations, and the center section has twice as many (e.g., 4) rowing stations. At each of the rowing stations in all of the sections the beam of the shell is the same (e.g. 22 inches), and the sections are designed and constructed such that the bow section and the stern section may be connected directly to each other to form a shell having one conventional rowing configuration (e.g., a four-oared shell), and the central section can be connected between the bow and stern sections to form a shell having a second conventional rowing configuration (e.g., an eight-oared shell). Two eight-oared configurations may be joined by two jokes to form a shell having a third conventional rowing configuration (e.g., a sixteen-oared training shell).

Abstract: A boat has a top retractable from a normal, relative high position, to a retracted relatively low position via a plurality of supports arranged as parallel linkages. The boat carries an upright structure that normally projects above the level of the retracted roof and that would form an obstacle to passage of the boat under low bridges, for example. The upright structure may be a head or galley having a hinged upper part that retracts along with the retracting roof, thus diminishing the height of the structure to about the level of the retracted roof.

Abstract: The combination bookmark and writing instrument holder includes a generally planar marking strip and an integrally molded retaining clip at one end of the marking strip. In the preferred embodiment, the retaining clip includes a pair of generally symmetrical, outwardly jaws that together present a writing instrument retaining channel. The channel includes a writing instrument retaining portion, and an outwardly flared mouth portion for guiding the writing instrument into the retaining portion.

Abstract: A developing device for developing an electrostatic latent image formed on an image carrier includes a roller which carries toner particles to the developing position and a porous foam member of a material such as urethane resin which contacts the roller. The porous foam member comes in contact with either a developing roller or a toner supply roller which supplies toner particles to the developing roller. Toner particles supported in the holes of the porous foam member are charged as the particles rub against the developing roller or toner supply roller, causing the particles to be readily transferred to the roller. The porous foam member causes the amount of toner particles supported on the surface of the developing roller or the toner-supply roller to be sufficient to prevent a reduction in the density of the toner image even directly after a larger amount of toner particles are consumed for developing a solid toner region for example.

Abstract: A continuous vacuum processing apparatus including a slit-type sealing portion and a guide roller for guiding an object to be processed. The guide roller is provided at each of the two sides of the sealing portion or at one side thereof. Tension is applied to the object to be processed by another device provided between the guide rollers while the object is being conveyed, so as to enable it to be processed without being damaged.

Abstract: A modular continuous vapor deposition system for the fabrication of semiconductor devices having a plurality of deposition modules isolated from each other by isolation modules which prevent the cross contamination of the different processing gases used in the deposition modules. Each of the deposition modules has a flow of a decomposable processing gas therethrough at a desired pressure, and means for generating a continuous glow discharge. The glow discharge decomposes the processing gas to deposit a layer of amorphous semiconductor material on the discrete substrate sheets as they are transported through each of the deposition modules. A plurality of gate valves effectively seal the interfaces between adjacent modules to isolate them from their immediate neighbors and are opened in a predetermined sequence to allow the substrate sheets to be transported from one module to the next. The isolation modules are connected to a vacuum source and a back-fill gas source.

Abstract: In a method of manufacturing a thin film of a compound oxide, different types of materials for forming the compound oxide are evaporated in vacuum. The evaporated materials are heated and deposited on a substrate to form a thin film. An oxygen ion beam having energy of 10 to 200 eV is implanted in the thin film which is being formed on the substrate. Alignment of the constituting elements is performed on the basis of a substrate temperature and energy of the oxygen ion beam, thereby causing epitaxial growth.

Abstract: The present invention relates to a plasma apparatus, in which a plasma is generated by the use of an electron cyclotron resonance, said plasma being introduced into a sample chamber where a sample is housed through a plasma outlet window by the use of a magnetic field for use in the electron cyclotron resonance, and said sample being subjected to a film-formation or an etching, characterized by that the distribution of magnetic flux density on a surface of the sample can be improved to uniform the plasma density, whereby subjecting the sample with the film-formation of uniformly thick or a uniform etching, by disposing a magnetic field forming means capable of forming a magnetic field, wherein the magnetic flux density at the peripheral edge portion of the sample is higher than that at the central portion of the sample, on a side opposite to the plasma outlet window relatively to the sample.

Abstract: A microwave plasma CVD apparatus for forming a functional deposited film comprises a film-forming chamber having a discharge space, a substrate holder, and apparatus for introducing a film-forming raw material gas into the film-forming chamber, for transmitting microwaves into the film-forming chamber to apply microwave energy to the raw material gas so that the raw material gas is converted into plasma, and for simultaneously applying a bias voltage to the plasma generated in the discharge space from an external system to control the plasma potential. A mechanism is provided for temporarily suspending the application of the bias voltage in the case when abnormal discharge occurs, while monitoring the fluctuation of the bias voltage to be applied to the plasma, to thereby inhibit the occurrence of abnormal discharge.

Abstract: An apparatus for forming films by evaporation in vacuum has a chamber for evaporating a coating material containing a coating material (10), and a heating element (2) positioned outside this chamber. A collimating chamber (3), which is identically constructed, communicates with the chamber (1), and each of the chambers (1,3) has a pair of ports (4, 5) aligned on an axis (8), a socket pipe (6,7) being received in one of the ports, respectively, the socket pipe (6) of the evaporation chamber (1) being received in the port (5) of the collimating chamber (3), the evaporation chamber (1) having a sealing member (9) provided in the other port (4) of the chamber (1).

Abstract: A heat treatment apparatus used in the manufacturing of semiconductor devices and the like, for treating with a reaction gas substrates placed in a reaction tube of the apparatus. A support table is provided within the reaction tube, for supporting substrates during a treatment process, and is rotated during each treatment by a motor, via a shaft penetrating the reaction tube. That portion of the reaction tube which is penetrated by the shaft is provided with a journal bearing and a magnetic fluid seal member. The seal member is surrounded by an enclosing space which substantially separates the seal member from the reaction space within the reaction tube, the enclosing space and the reaction space communicating with each other via a narrow passage. During a heat treatment, a shield gas is supplied into the enclosing space, the pressure within the enclosing space being maintained at a higher level than that within the reaction space.

Abstract: The invention provides, in one embodiment, an odor controlling animal litter comprising:a) adsorbent or absorbent particles; andb) an ammonia-controlling-effective amount of pine oil carried onto said particles via an aqueous liquid dispersion and a dispersion aid therefor.The litter can also include further adjuncts, such as fragrances, other antimicrobial additives, and the like.

Abstract: An automatic milk counter of a milking unit in which a programming unit and a yield sensor of each quarter of the cow's udder is made as a microprocessor device wherein a milking timer is provided with a sensitive element while each continuous milk flow receiving chamber includes a milk flow start and end sensor comprising a float with a magnet which enables the float to engage in reciprocating motion along an air drawoff pipe during the filling of a continuous milk flow receiving chamber. A drain hole is provided in the chamber which has a cross-sectional area corresponding to the milk flow rate at the milk flow start and end moments of each quarter of the cow's udder.

Abstract: A collapsible carrying container for animals includes top, bottom and opposed side walls which are in hinged assembly by means of four elongate hinges that extend substantially the entire length of the container. The top, bottom and side walls are capable of forming a rectangular animal enclosure and are enabled by the hinges to collapse in the manner of a parallelogram to a substantially flat condition. Opposed end walls are hingedly connected to the bottom wall and include out-turned structural flanges on the top, bottom and sides thereof for enhancement of the structural integrity of the end portions of the animal carrier unit. The hinges are connected to the outer edges of the lower out-turned structural flanges, thus permitting the end walls to be positioned within the rectangular enclosure. Locks are provided at the end portions of the top wall and include hooks that engage about the superposed ends of the top wall and out-turned structural flanges to thereby lock the end walls in place.

Abstract: A birdhouse includes a one-way viewing wall or window which allows the birds to be viewed inside the birdhouse without allowing them to see their observer. The birdhouse can be mounted on a window sill such that the one-way viewing wall is adjacent to a window pane, thereby allowing any number of observers to simultaneously view the birds in their natural environment without intruding on their privacy. Thus, the birdhouse functions as an observatory.

Abstract: A pet or animal food package and dispenser includes a food container having a bottom portion which defines a discharge opening. A removable closure or seal is secured to the container for retaining a pet food product therein. A dispensing tray includes a forward portion defining a feeding area and a rear portion defining a container mounting area. The portions are joined by a sloping ramp. A cooperating track and groove arrangement on the container and tray removably mount the container to the dispensing tray.

Abstract: This invention relates to a hanging type or ground supported bird observation enclosure, selectively limiting, squirrel resistant, provisioned with means for installation of at least one feed or drink receptacle within interior confines. Comprising the enclosure is an open mesh body structure, ported by an plurality of circular openings, sealed by a closure on one end, the other having at least one cover, for feed or drink replenishment.

Abstract: A separate U-shaped safety lock is provided for use with a trigger drinker utilizing a bayonet type coupler. In poultry and small animal trigger drinker watering systems the U-shaped safety lock restricts telescopically interfitting components from rotation. The lock is inserted through one component and partially surrounds a boss on a second component to prevent both clockwise and counterclockwise rotation of the components relative to one another. The safety lock can break upon reaching a pre-determined torque.