Abstract: A cooking device according to an exemplary embodiment of the present disclosure includes: a main body in which an inner pot is accommodated; a top plate provided in a lid cover coupled to the main body; a locking slide coupled on the top plate so as to be linearly movable in a first direction; and a locking structure including an engagement protrusion which is configured to be engaged with a flange portion of the inner pot. The locking structure is configured to be linearly moved, depending on a position of the locking slide performing a linear movement in the first direction, between a locking position where the engagement protrusion is positioned so as to overlap with the flange portion of the inner pot in a vertical direction and an unlocking position spaced apart from the locking position toward an outside of the top plate.

Abstract: The description relates to device retention assemblies. One example can include a bucket having an open end and defining a volume that contains electronic components. The example can also include a lid positioned over the open end of the bucket. A retention assembly can be configured to bias the lid against the bucket to seal the open end. The retention assembly can include a tab that is secured to the lid with a fastener that extends through the retention assembly into the lid without extending completely through the lid and does not contact the bucket.

Abstract: A tester that can be quickly and easily connected and/or disconnected to a device is described. The tester can check for leaks in the device. The tester can provide a conduit for fluid to flow to the device and a flow meter reading can demonstrate that the device has leakage or no leakage.

Abstract: Proposed is a cover structure with a double cover structure and a shooting case of munition having the same. The cover structure with a double cover structure includes: a shooting case main body having an inner space with an open upper side; a cover member seated on the open upper side of the shooting case main body to seal the open upper side; and a cover fixing member coupled to the shooting case main body to fix a position of the cover member, so that the position of the cover member is strongly fixed while simplifying a structure by the double cover structure to increase an internal pressure of the shooting case, thereby increasing a range of munition and maintaining performance of munition.

Abstract: Designs and methods for using reusable dispenser for use with a vessel containing a fluid.

Abstract: A notification device includes a calculation unit calculating, based on a speed of a vehicle, a vehicle stoppage distance by which the vehicle travels until the vehicle enters a stopped state while performing autonomous driving, a notification unit performing notification about information with respect to an outside of the vehicle, and a notification controller causing the notification unit not to perform notification about information indicating that the vehicle is in the middle of deceleration until the vehicle passes by a first soon-to-cross pedestrian and to cause the notification unit to perform notification about the information after the vehicle passes by the first soon-to-cross pedestrian when a distance between the vehicle and the first soon-to-cross pedestrian is smaller than the vehicle stoppage distance and a distance between the vehicle and a second soon-to-cross pedestrian is equal to or greater than the vehicle stoppage distance.

Abstract: A hydraulic tank for a bicycle that has a compensation chamber within the tank. The tank also has a ventilation hole and a ventilation channel, which is in fluid communication with the ventilation hole, and has an inlet opening arranged on a side wall of the tank.

Abstract: A security case and mounting bracket, including at least some of a base, a cavity defined within at least a portion of the base, a lid pivotable between an open position and a closed position, in the closed position the lid covers the cavity, a receiver extends from two opposing exterior sides of the base, and an elongate receiver groove extends along each receiver; the mounting bracket has a bottom portion and two extending arms, a rail element extends from an interior surface of each extending arm and is mateable with the elongate receiver grooves so as to be slidably received within one of the elongate receiver grooves; various locking mechanisms are controlled by a controller electrically connected to a data input interface, the controller is able to simultaneously or independently control the locking mechanisms to allow the security case to be unlocked and/or removed from the mounting bracket.

Abstract: A fastener assembly for releaseably fastening a first body to a second body is disclosed. The fastener assembly has a manual rotating mechanism to permit closing of the fastener by hand. Once closed, the manual rotating mechanism is not easily accessible to the user by hand. A separate tool operating rotating mechanism is accessible by a tool when the fastening mechanism is in the closed position. The fastening mechanism can be used to fasten a lid to a box in which case the lid has a recess for receiving the manual rotating mechanism.

Abstract: A system for fastening a cover to a body of an explosion-proof enclosure using a plurality of fastening devices. Each fastening device can include a first load distributing member disposed on a body flange of a body of the explosion-proof enclosure, and a second load distributing member disposed on a cover flange of a cover of the explosion-proof enclosure. A fastening device can also include a securing member having a top end disposed on the first load distributing member and a bottom end disposed on the second load distributing member. A fastening device can further include a cam rotatably coupled to and positioned atop the first load distributing member.

Abstract: A disclosed pig trap door device serves as a tool for opening and/or closing a pig trap door of a pipeline. The pig trap door device may be fixed to a hinge portion of the pig trap door at a hinge attachment and may also be movably coupled to the pig trap door with a force actuator at a door attachment. Operation of the force actuator causes the door attachment to rotate the pig trap door with sufficient torque to seal and/or remove the pig trap door.

Abstract: A storm grate locking device and method of use with a lock body. The lock body has at least one hook arm engaged with a latch assembly, a security flange nut engaged with the latch assembly, and a deep well socket. When the lock body is placed into the recessed area of a storm grate; and the hook arm engaged with the latch assembly may be extended to extend under the storm grate thereby preventing removal of the storm grate by rotating the security flange nut.

Abstract: A fastening device for fastening a cover to a body of an explosion-proof enclosure can include a bracket having a back side mechanically coupled to a bottom side at a first angle and to a top side at a second angle, where the top side includes an engagement portion, where the first angle is substantially parallel to an under side of the body flange, and where the second angle is substantially parallel to a top side of the cover flange. The fastening device can also include a cam fixedly coupled to an outer surface of the cover flange and hingedly coupled to the engagement portion. The fastening device can further include a lever fixedly coupled to the cam and having a closed position and an open position.

Abstract: An assemblable and disassemblable container is disclosed wherein a short wall member includes upper corner reinforcing members each formed at a corresponding corner formed by an upper horizontal flange and an endwise vertical side plate portion of the short wall member, and the upper corner reinforcing member includes an inclined coupling rib coupling the vicinity of the end of the upper horizontal flange to the vicinity of the upper end of the endwise vertical side plate portion, and wherein the lower end of the inclined coupling rib is positioned close to an endwise vertical side plate portion side of a lower horizontal rib of a horizontal portion included in a fitting block member. This configuration allows the short wall members and thus the container formed into a box shape to be increased in strength and rigidity, and can be prevented from undergoing torsional deformation.

Abstract: A system includes a container assembly comprising a cover threadingly coupled to a container along a threaded interface portion of an interface and a cover lock assembly. The cover lock assembly includes a lock screw configured to selectively move between a cover lock position and a cover release position. The lock screw extends across the interface to resist threaded rotation of the cover relative to the container in the cover lock position, and the lock screw is recessed away from the interface to enable threaded rotation of the cover relative to the container in the cover release position. The cover lock assembly also includes a lock insert configured to block movement of the lock screw from the cover lock position to the cover release position.

Abstract: Enclosure clamps and clamp systems are provided for fastening a cover to an enclosure body to provide an explosion-proof container, while minimizing the number of bolts used over conventional systems. The enclosure clamps and clamp systems create a sufficient force so as to provide a flamepath between the cover and the enclosure body. The enclosure clamps described include a channel for receiving the cover and a flange on the enclosure body. The enclosure clamp is secured to the enclosure body by one or more bolts and/or by a cam actuated securing mechanism. The clamp systems described include a force distributing plate secured to a cover by cam actuated securing mechanism that is coupled to an enclosure body. The enclosure clamps and clamp systems allow a user to attach or remove the cover from the enclosure body more easily than possible with conventional explosion-proof enclosures.

Abstract: A method and apparatus for connecting a vessel to a carrier system includes a vessel having at least one domed end and an annular bracket having an outer peripheral portion including multiple cutouts and swages extending radially outwardly from the outer peripheral portion for fixedly securing the bracket to the domed end of the vessel, and an inner peripheral portion having a pre-tensioned flange for removably securing the bracket to the vessel.

Abstract: A security cap (1) for selectively closing an open end (3) of a pipe (5). The security cap (1) includes inner and outer cap assemblies (7, 11), at least one latch (17), and a driving assembly (21). The outer cap assembly (11) is rotatable with respect to the inner cap assembly (7), and along with it, is intended to cover the open end (3) of the pipe (5). Each latch (17) is cooperable with the inner and outer cap assemblies (7, 11), and displacable with respect to the cap assemblies (7,11) so as to be operated between first and second configurations, wherein in the first configuration, each latch (17) is drawn away from an outer groove (19) of the open end (3) of the pipe (5) thereby enabling the security cap (1) to be removed from the open end (3) of the pipe (5), and wherein in the second configuration, each latch (17) is engaged with the outer groove (19) thereby preventing the security cap (1) from being removed from the open end (3) of the pipe (5).

Abstract: Disclosed are apparatus and methodology for securing access to an underground device such as a storage tank. A lockable blocking plate is secured to a filler cap for an underground storage tank in a manner to inhibit access to the filler cap. The locking mechanism is configured such that the lock and blocking plate may freely rotate with respect to the filler cap. The blocking plate may include a side skirt extending to cover portions of the filler cap and, optionally, portions of a standpipe and coupling for the filler cap. Free rotation is enabled by way of an annular groove in a portion of the locking mechanism, and into which groove one or more locking portions may be inserted, or by way of a freely moving swivel boss attached to the filler cap.

Abstract: A painting apparatus comprising a paint container and a closure module, the paint container having a screw threaded rim, the closure module having a main housing and an outer ring, the outer ring having a screw thread, in which the outer ring is rotatable relative to the main housing such that the screw thread cooperates with the threaded rim of the paint container to secure the closure module onto the paint container without having to rotate the main housing relative to the paint container.

Abstract: The invention relates to a closure for a container for holding a fluid, more particularly an adhesion promoter composition, provided, having a base element which can be fastened in the region of a pour opening of the container and which has an opening through which the fluid can be withdrawn from the container, having a first closure element which in a closed position thereof effects fluid-tight sealing of the opening of the base element and which in an open position thereof releases the opening of the base element, and having a second closure element, which can be fastened to the base element in such a way as to be repeatedly releasable and which, in a container storage mode, secures the first closure element in its storage position and, for a container dispensing mode, releases the first closure element to bring it from its closed position into the open position.

Abstract: The invention relates to a compressed gas container (10?) comprising a block flange (14) that is provided on an upper opening in its wall (12), a flange cover (15) that is equipped with two extraction valves (22) being screwed onto said flange. The block flange (14) is extended radially beyond the region covered by the flange cover (15) by a solid annular flange (40), whose outer periphery is welded to the wall (12) of the container (10?) and whose inner section lying adjacent to the region covered by the flange cover comprises a peripheral groove (44) in an upper front face (42), for holding the sealing rib (46) of an emergency cap. If required, said cap can be screwed onto the annular flange (40) if a leak occurs in the flange region of the container (10?).

Abstract: An electrical enclosure includes an electrical box and a cover mounted onto the electrical box. A 3/8-7 lag bolt extends through the cover and engages a coil nut for securing the cover to the electrical box or underground enclosure. The coil nut includes a body having two ends with an aperture therebetween. The aperture has a continuous internal thread formed between the first and second ends. The size of the continuous internal thread is seven individual threads per inch such that the distance, or pitch, between first and second centers of first and second threads, respectively is 0.143 inches. The pitch and the diameter determine the seven threads per inch size of the continuous thread by accounting for the minor diameter and the major diameter of the nut.

Abstract: A drum closure which establishes a connection between the body of a drum and lid, wherein the connection will prevent separation of the lid from the body under severe loading conditions such as dropping the drum from a height of thirty (30) feet.

Abstract: Vessels, or housings, and covers therefor are detailed herein. Loads and load-bearing surfaces exist principally at the periphery of the covers, by contrast with centralized loading utilized in other designs. In some versions of the vessels, a cover is sandwiched, at its periphery, between a cap assembly formed of both a jack ring and an upper component or cap and thus carried on and off the associated vessel when the cap is placed onto or removed from the vessel, respectively.

Abstract: A cap for blocking a pipe. The pipe has a rim at an end thereof. The rim defines a pipe aperture. The cap includes a body for blocking the pipe aperture, the body including a bore having a threaded bore portion. A latch is movably mounted on the body for movement between a latched position wherein the latch engages the rim, and an unlatched position wherein the latch disengages the rim. A plug is provided for threaded engagement with the threaded portion and converts a rotational movement of the plug relative to the bore into a translation movement of the plug relative to the bore between a plug first position and a plug second position. The plug is operatively coupled to the latch for moving the latch between the latched and the unlatched positions in response to the plug being moved between the first plug position and a second plug position.

Abstract: A sealable lid assembly for a vacuum distillation apparatus has a lid pivotally and telescopically mounted to the vacuum distillation apparatus. Spaced-apart wheels are rotatably mounted to the lid. Tracks are disposed on the vacuum distillation apparatus in a position to engage the wheels and raise the lid vertically above a manhole of the vacuum distillation apparatus upon pivotal movement of the lid, which is initiated by nominal physical exertion of a single operator. Extending outwardly from and adjacent the manhole is a flange. The flange has a channel to receive a gasket. A protrusion extends outwardly from a bottom of the lid in a position to extend into the channel and sealably engage the gasket when the wheels disengage the tracts. Clamp assemblies are provided to releasably engage the lid with the flange and draw the protrusion into sealable, releasable engagement with the gasket.

Abstract: A lid device for a minnow bucket for converting a conventional bucket into a minnow bucket. The lid device for a minnow bucket includes a panel having a top side, a bottom side and a peripheral edge. The panel has a diameter generally equal to an inner diameter of a bucket. A peripheral lip is coupled to and extends upwardly from the peripheral edge. The peripheral lip has a bottom edge having a slot extending upwardly therein and adapted for receiving a top edge of the bucket, the panel has an opening therein. A door selectively opens and closes the opening. The door has a shape generally identical to a shape of the opening. The door is hingedly, coupled to the panel such that the door may be moved between an open and a closed position. The door has a plurality of holes extending therethrough.

Abstract: A locking lid and method for a valve box. The locking lid has a closure and surrounding external seal, which fit into the valve box opening and close/seal it. The locking mechanism of the locking lid preferably consists of an actuator spindle that extends through the closure, and that is received in an actuator follower positioned therebelow. The actual follower is in pivotal engagement with a plurality of locking pawls, such that turning of the actuator spindle causes movement of the actuator follower and thus pivoting of the locking pawls—moving the locking pawls into a locked or unlocked position relative to a lid seat within the valve box.

Abstract: A steam pressure cooker, includes a pot with a horizontal pouring rim, a lid for closing the pot, and an elastic seal positioned between the lid and the pot. At least two moveable clamps are arranged peripherally in even spaced-apart relationship, for clamping the lid and the pouring rim, when the steam pressure cooker is closed, and clearing the pouring rim, when the steam pressure cooker is opened. The clamps and the lid are covered by a cap which supports a handle comprised of two handle parts, which are respectively connected to the cap and the lid. Actuation of the handle effects a coaxial rotation of the cap relative to the lid between two end positions, whereby in one end position the clamps are moved outwards, until the pouring rim is cleared. A tip clamping mechanism secures the cap relative to the lid in the end positions.

Abstract: A carbonated canned beverage sealing device including a cover member having a circular member for positioning over an upper end of a beverage can. The cover member has an O-ring positionable inside the can rolled lip to effect a seal therewith. The circular ring has radial apertures each having rivets slidably disposed therein to abut the can below the rolled lip. A cap portion has a periphery for positioning over the cover member. Radially disposed tab housings extend outwardly and downwardly from the cap periphery in a spaced relationship corresponding with the rivets. Each tab housing has a hollow opening for receiving a rivet whereby the openings are positioned over the rivets. The cap portion-is rotated so that the rivets are pushed inwardly against the can below the can rolled lip to hold and effect a seal between the O-ring and the upper end of the carbonated beverage can.

Abstract: A device for sealing an open beverage can employs a cap and clamping jaws articulated from the cap which lock into the top lid of the can to push the can into secure contact with the cap. The cap may include a turret and straw for drinking from the can without removing the cap. Insulating sleeves to keep the beverage cold may be part of the cap.

Abstract: A locking mechanism for a box having a cover and a base hingeably connected to each other. The locking mechanism comprises a cover latching mechanism and a base latching mechanism. The cover latching mechanism is in a latching position. The two latching mechanisms are in latching engagement with each other to lock the box closed. An unlatching mechanism is provided which is activated to place the latching mechanism in an unlatching position to disengage the latching mechanisms from each other and unlock the box. An activating mechanism to active the unlatching mechanism. A deactivating mechanism is provided to return the cover latching mechanism back to its latching position so that closing the cover will cause the latching mechanisms to become in locking engagement with each other to lock the box. A box opening assembly in the box which is adapted to open the cover as soon as the latching mechanisms are disengaged from each other.

Abstract: A sealing cap for pressurized gas containers, in particular for 500 kg chlorine containers, has at least two, preferably four, retaining claws, which engage in an existing bead on the pressurized gas container and effect the sealing. The retaining claws are connected to the sealing cap via a rod having a mount, the rod, at the opposite end, having a screw thread with a lock nut. A seal of resistant material is advantageously guided in a groove of the sealing cap. Furthermore, the sealing cap may have a pressure gage, a discharge valve and handles.

Abstract: A pressure vessel having a container, a cover and a control device for closing and opening of the cover of the container, wherein the control device consists of at least two driving arms movably mounted on the cover. A knob is pivotally mounted on a central axis of the cover, and a rotary plate is co-axially fixed at a lower end of the knob. The rotary plate is rotatably movable together with the knob and particularly formed with at least two rotary drivers corresponding to engagement posts formed on driving arms. Jaws fixed at outer ends of the driving arms driven by the rotary drivers of the rotary plate are movable in a radial direction relative to the central axis of the cover between a locking position in which the cover is locked to the container and an unlocking position in which the cover can be removed from the container.

Abstract: A pressure cooker with a safety device to prevent the lid from turning includes a lid handle and a cooking pan handle. The safety device is built-in to the lid handle, and includes a locking mechanism, a vertical sliding pushbutton that actuates a locking member, a residual pressure valve, and a cooker closed condition indicator rod. The pushbutton exerts pressure on a rocker, which moves the locking member horizontally over two opposing slope ramps in the surface of the locking member.

Abstract: The pressure cooker with a system (3) for locking the closure of the lid (2) on the pan comprises an elastic locking collar housed in the recess (2b) in the lid, clamping the rim (1a) of the pan, a release trigger (5) and a transmission mechanism (7) from the trigger (5) to the collar (4), which has a dividing gap (4a), while its section is flat and angled. The transmission mechanism (7) is housed inside the handle (6) of the lid and it has a member (15), jointed to the trigger (5) and connected to the ends of the collar (4), for the expansion of said collar via a rack (15a).

Abstract: A vented hatch cover assembly for a railroad hopper car including top and bottom members having substantially rigid and somewhat dome-shaped bodies which are divided into four quadrants wherein each quadrant includes coacting baffle members extending from the bodies of the top and bottom members which define a plurality of circuitous air passageways to allow air flow into and out of the hopper car while restricting moisture and other contaminants from entering the car. An improved hatch cover lock mechanism for securing a vented or non-vented cover to the hatch is easily adjustable to provide a tight seal between the cover and hatch, and provides a safe controlled opening of a non-vented cover. An improved seal or gasket is arranged between the cover and hatch.

Abstract: A device for automatically locking or unlocking the pressure lid in electric pressure cookers is disclosed. In the above device, a drive gear which is fixed to the output shaft of a reversible motor gears into a spur gear of the lock ring. A contact protrusion which is provided on the peripheral edge of the lock ring selectively comes into contact with either lock or unlock sensing switches in accordance with a rotating motion of the lock ring, thereby turning on the switch and automatically locking or unlocking the inward protrusions of the lock ring relative to the outward protrusions of the pressure lid. The above device is thus convenient to the user. The device does not have any handle lever exposed outside the cooker, thus neither causing a difficulty in packing the cooker nor spoiling the appearance of the cooker.

Abstract: A re-enterable environmentally sealed enclosure for housing circuitry and/or cable components of a communication network employs a removable cover attached to an enclosure base by a pivoting cam-tracking system. The tracking configuration positions the cover in a manner that, as it approaches the enclosure base when being closed, a seal located in the cover is evenly compressed along its entire perimeter against a corresponding mating surface on the base, thereby distributing the compressive force equally across the entire seal, with any shear forces substantially eliminated. A single tensioning system is provided adjacent the cam-tracking system, so that the tracking system does not operate as a counter-lever to the tensioning system, and visa versa, thereby improving the distribution of force across the seal.

Abstract: A monitor case assembly includes a front case section to which a cathode ray tube is fixed; a rear case section fastened to the front case section; and an intermediate case section interposed between the front and rear sections for reenforcing the case and preventing distortion in the case due to the weight of the cathode ray tube. The monitor case assembly also providing a more visually appealing exterior appearance.

Abstract: A safety hatch for tanks, washing machines, industrial machines and the like comprises a frame and an arm having a first end pivotally connected to the frame. A second end of the arm has a surface portion provided with a hole having a circular section communicating with a slot section which extends to an external edge of the arm. A male threaded member is dimensioned to extend through the arm hole and has a first end pivotally connected to the frame and a second end. A female threaded member is adapted for threaded engagement with the male threaded member and has a head section and a shank section. A clamping member is integrally connected to the shank section of the female threaded member and has a tubular portion extending from the shank section.

Abstract: An upper cover 2 is coupled to a junction block 4 by means of a securing member 5. A slant side wall 2h of a groove frame 2c of the upper cover 2 and a rib 1f at an opening rim portion 1e of a lower cover 1 are operated together, so that the opening rim portion 1e is bent to move an engaging protrusion 1c inside. The engaging protrusion 1c is jointed to an engaging concave portion 4a of the junction block 4, so that the lower cover 1, the upper cover 2 and the junction block 4 is secured all-in-one.

Abstract: There is disclosed a hyperbaric chamber in which access may be had to the interior of a pressure vessel in which a patient is received through a door releasably locked to an open end of the vessel to close same.

Abstract: A closure for a pressure vessel having a collar connectable to the pressure vessel and to a cap, a seal disposed in an area where the collar and cap contact each other, and a plurality of clamping elements for generating the surface pressure between the collar and the cap. The collar comprises an integral sealing flange having an upper flat sealing surface and a lower circumferential annular bead at least partially circular in cross-section. A plurality of C-shaped clamps are displaceably, releasably and form-fittingly held on said lower circumferential annular bead. Each C-shaped clamp comprises one pressure screw and constitutes a clamping element. In the operational state of the closure, the C-shaped clamps press on the edge region of the cap resting on the sealing flange of the collar.

Abstract: A device for controlling opening and closing of jaws mounted on a cover of a cooking vessel, the vessel having a central axis and the jaws being movable by drive arms over a radial path relative to the central axis between a locking position in which the cover is locked to a container of the vessel and an unlocking position in which the cover can be removed from the container, the device including a control element mounted on the cover for movement relative to the cover in a radial direction relative to the central axis, the element, during its movement relative to the cover, engaging the drive arms in a manner to control displacement of the drive arms over the radial path.

Abstract: A device to be applied to the top of a metallic container after the top of the container has been completely or partially removed for the purpose of preserving the unconsumed contents of the container. The device includes a seal which is adapted to fit the contour of the top periphery of the container is sealed in place utilizing at least one locking device.

Abstract: The cooking vessel comprises a container (1) and a lid consisting of an inner lid (3) and an outer lid (5). The container comprises a bent peripheral container rim (2) wherein twelve individual hook-like lock elements (21) are effective locking the cooking vessel. The lock elements (21) are arranged peripherically and swivellingly along the inner lid rim (4) so that through pressing the upper lid (5) against the lock elements (21) a swivel movement of said lock elements is obtained. The lock elements are C-shaped with a hook part (32), such that in the swivel position corresponding to the closed state, the ends of this hook part (32) grip under the outer container rim (2). In the swivel position corresponding to the opened state, the ends of said hook part (32) are in a distance from said container rim (2) allowing an unhindered lifting of the inner lid (3) from the container (1).

Abstract: Hinge and latching mechanism for containers having a cover and a base includes a latch which, at its upper portion, is shaped to hook over a strike integrally disposed on the cover. The lower portion of the latch rotates about a pin located between a pair of feet which are provided with hooks to engage a flange extending from a lip on the base. The hinge includes a body and two legs and the former is also shaped to securely engage a second strike also located on the cover. Each leg has a foot which is also hooked to engage the flange of the base. To further secure the hinge and latch, each hook is fastened together and to the container. This structure ensures that hinge and latching mechanism are especially adapted for heavy duty applications while still being light in weight and small in size.

Abstract: A manhole cover apparatus including a collar defining an opening with an inner perimeter is provided with a pivotally mounted cover having an outer perimeter greater than the inner perimeter of the collar. A seal is provided to seal between the cover and the collar. Closure structure is provided to secure the free end of the cover to the collar. A threaded bolt is provided to close the cover. A pivotally mounted lever arm is mounted to the bolt for turning of the bolt. An adjustable threaded hinge is provided to adjust the cover in a longitudinal direction relative to the collar. The manhole cover apparatus is useable on pressure containers, such as those used to pneumatically handle particulate material.