Abstract: The present latch apparatus includes a swinging piece having first and second independent latches or sliders sliding in first and second slots. The first and second sliders slide independently of each other. The first and second sliders engage an undersurface of an extension of a first object such as a gate. If either the first or second slider is engaged on the undersurface, the swinging piece is locked and is not swingable such that the first object such as the gate cannot itself swing away from a second object such as a barrier section. Only when each of the first and second sliders has been slid beyond the undersurface can the swinging piece swing to permit the first object such as the gate to be released and thus swingable itself relative to the second object such as the barrier section.

Abstract: A steam autoclave (steam sterilization system) has a door for opening and closing an opening that defines the entrance to and exit from a steam sterilization chamber. The door may be latched and locked and pneumatically sealed when in a closed position. Preferably, the door has a convex portion that projects into the sterilization chamber when the door is in a closed position for aiding in providing an even distribution of steam throughout the sterilization chamber during operation of the steam autoclave.

Abstract: An unlock mechanism for a rotary door operator of a transit vehicle includes a pivotally disposed lock member adapted for rotating into an unlock position and activating a valve for discharging the fluid pressure from a drive cylinder to enable a manual opening of the door. A spring is provided for biasing the lock member into a lock position. The lock member may be moved into the unlock position either with a cable or a lever handle.

Abstract: An unlock mechanism for a rotary door operator of a transit vehicle includes a pivotally disposed unlock member adapted for rotating a lock member into an unlock position and activating a valve for discharging the fluid pressure from the drive cylinder to enable manual opening of the door. A spring is provided for biasing the unlock member to a non-activated position. The unlock member may be activated either with a cable or a lever handle. A lock sensing switch provides a feedback on the lock condition to the transit vehicle control system. Additionally, a guiding bracket is provided for securing the cable in proximity of the unlock member.

Abstract: A lift gate latch is used in connection with a lift gate and a handrail on a boat. The handrail has a jamb, and the lift gate has at least one stile. The lift gate latch has left and right side walls spaced apart and disposed adjacent the deck of the boat. Reinforcing ribs extend along both side walls, which straddle the jamb and the stile. A transverse member and a base member extend between the side walls. A portion of the right side wall has a height lower than the left side wall height, so that the stile can pass easily over it when opening and closing the gate. Fasteners pass through holes in the side walls and attach to the deck. Bosses are juxtaposed with the holes. The fasteners and bosses strengthen the side wall adjacent each hole.

Abstract: A modular solvent recovery device (30) includes an enclosure (34) mounted to a frame (32) to enclose a tank (70) having a solvent section (72) and a waste fluid section (73), a still (40) in which waste photopolymer fluid is distilled by application of heat and vacuum pressure to the waste photopolymer fluid to distill a solvent from the waste photopolymer fluid and reduce the waste photopolymer fluid to a coalescing concentrated residue, and a flash-point-increasing agent delivery system (95) to supply a flash-point-increasing agent to the concentrated residue in an amount sufficient to raise the flash point temperature of the coalescing concentrated residue to a predetermined temperature. The still has a manhole device (46) comprising a pivotally and telescopically mounted closure (47) having wheels (51) rotatably mounted thereto and tracks (52) mounted to the still to engage the wheels and raise the closure vertically above a manhole (42) of the still upon pivotal movement of the closure.

Abstract: An structurally simplified actuation mechanism for swinging an aircraft door from a frame on an aircraft fuselage. The actuation mechanism includes a cantilever rotatably mounted to the frame and including a receiving region, a universal joint supported in the receiving region, and an actuation device disposed on the cantilever. The universal joint defines a vertical axis of rotation and is configured to receive a door fitting. The actuation device includes an output drive connected to the universal joint at the vertical axis of rotation.

Abstract: A device for removing spa covers and putting them aside while the spa is in use, and returning them to cover the spa after use. This invention lifts the cover in the flat position, then the cover may be rotated clockwise or counter clockwise to uncover the spa for use.

Abstract: A device for removing spa covers and putting them aside while the spa is in use, and returning them to cover the spa after use. This invention lifts the cover in the flat position, then the cover may be rotated clockwise or counter clockwise to uncover the spa for use. It is not necessary for the user to fold the cover at the half-way seam as required by many previous designs.

Abstract: A hatch closure system for loading of material through a top hatch into a mobile or stationary pressurized carrier includes a support frame pivotally attached to carrier for actuated movement between an loading position wherein said support frame is located remote from said hatch and a closure position overlying hatch, a cover carried by the frame member for actuated movement between a raised unsealed position above the hatch and a lowered sealed position engaging the hatch, and a locking member having a latched condition maintaining the sealed position and an unlatched position permitting movement of the hatch to the raised position.

Abstract: A safety fence for a square hatched formed in a slab of a building is provided. The fence has lids pivotable about opposed sides of the hatch, and has such a size that about half of the opening of the hatch is closed by each of the lids. Side frames having a predetermined height are pivotable about opposed sides of the hatch. A plurality of gear mechanisms is provided, with each mechanism comprising a first gear and a second gear in mesh with each other, a first shaft supporting the first gear, a second shaft supporting the second gear, the first and second shafts extending parallel to the opposed ends of the hatch, the first gears being secured to lower ends of the lids, and counterweights mounted to one of the second shafts. The safety fence is set up by erecting the lids and the side frames. A plurality of brackets each having a pair of bracket portions secured to the inner wall of the hatch.

Abstract: A door system, particularly for a passenger plane, includes bearing and guiding device which operates between the door leaf and the door frame, as well as a lifting device which is arranged between the bearing and guiding device and the door leaf. The lifting device moves the door leaf at the end of the closing movement transversely to the moving path (B) of the guiding device with a form-locking engagement with door-frame-fixed receiving elements into the completely closed position and, at the start of the opening operation, in the opposite lifting direction (A) out of the form-locking engagement. The lifting device contains lifting kinematics for the control of the door blade lifting movement and an assigned lifting drive.

Abstract: A safety barrier such as, for example, children or pets, is adapted to be removable secured between two opposed supports, with the barrier including a frame structure and an openable gate. The frame structure includes a rigid lower horizontally extending beam and, at one side thereof, a vertically extending pillar. The gate is hinged to one side of the pillar and, on the other side, to a grid. The frame structure is secured between supports by expanding securing means, with the gate having a locking device expandable against one of the supports.

Abstract: A device is provided for opening and closing a door (5) in a doorway (7) of a structure (9) in a railway or bus car comprising an upper ejection assembly, a lower ejection assembly and a translation assembly, the upper ejection assembly further comprising a translation slide bar. The upper and lower ejection assemblies comprise rotation arms (1, 11) joined at one side to the fixed structure (9) by hinges (13) mounted through curved slots on respective brackets (15), and at the other side to a frame which is integral with the door (5). A slide bar (37) passes through the doorway (7) and is pivoted at one end to a movable end of the upper arm (1), and at the other end to a fixed bracket (47) on the other side of the doorway (7).

Abstract: A cabinet unit (10) with a flipper door (12) is described. The unit is formed by a top wall (10A), a bottom wall (10B) and two sidewalls (10C and 10D). A pair of brackets (14) having apertures (14A) are mounted on the inside surface (12C) of the flipper door. An axle (16) having two ends (16A) extends through the apertures Pinion gears (18) are mounted onto the two ends. A pair of U-shaped unitary members (30) which form a pair of racks (22) and a pair of guide ledges (26) are mounted on the inner surface (10I and 10J) of each sidewall. The pinion gears are provided with first teeth (18K) which rotatably engage the second teeth (22C) of the rack for allowing movement of the flipper door. The gears are also provided with second extensions (18D) which protrude into the U-shaped unitary piece just below the guide ledge to assist in stabilizing the flipper door during movement.

Abstract: A dispensing-type display cabinet includes a frame and a door which is mounted to the frame such that the door is pivotally movable toward and away from the cabinet frame and is also vertically slidable. The cabinet frame includes a plurality of horizontal shelves for receiving product to be displayed and dispensed, and the door includes a plurality of vertically extending spaced partitions which define dispensing slits therebetween equal in number to the number of shelves. The door is vertically slidable between a position in which the slits are aligned with corresponding shelves so that product may be dispensed to a position in which the slits are not aligned with the shelves and product is inaccessible.

Abstract: A hinge for a cabinet having a box and a door in an opening of that box, includes a hinge rod having a first offset end portion and a corresponding second offset end portion opposite that first offset end portion and an intermediate rod portion between these first and second offset end portions. A first mounting clip for the first offset end portion is connected either to the box or to the door near the cabinet opening. A second mounting clip for the second offst end portion is connected either to the box or to the door near the cabinet opening. At least one hinge rod mounting bracket for the intermediate rod portion is connected either to the door or to the box. A first slot for either the first offset end portion or for the intermediate rod portion is either in the first mounting clip or in the hinge rod mounting bracket, and a corresponding second slot for either the second offset end portion or for the intermediate rod portion is either in the second mounting clip or in the hinge rod mounting bracket.

Abstract: An apparatus and method are described for opening, closing, and sealing the door of a sterilizer. The apparatus includes a clamping device for compressing a compressible gasket between the door and the chamber of the sterilizer, and the clamping device can provide variable clamping pressure. Further, the clamping device is self-locking and once in a clamped position it requires the positive application of hydraulic pressure to move it to an unclamped state. The apparatus also includes hydraulic mechanisms for opening and closing the door and raising and lowering the door against the face of the sterilizer. Each of these hydraulic mechanisms may be adjusted to vary the amount of force used to open and close the door or to raise and lower the door. In addition, the hydraulic mechanisms used for clamping the door, opening and closing the door, or raising and lowering the door are adapted so that they can be operated during a loss of electrical power.

Abstract: A personnel door for sealing a room having a source of Radio Frequency (RF) radiation. The door when swung into a closed position can be energized to be partially disposed in an opening below floor level directly beneath the door. Sealing between the door and the door frame of the room can occur around the borders of the door including the part disposed in the opening below floor level. A step up into the room or use of a ramp to gain access to the room is thereby eliminated. In the preferred embodiment, the door is retained above the opening below floor level by springs and energized to move vertically downward into the opening against the force of the springs by an air cylinder.

Abstract: A single key multi locking system for a display case for jewelry and other items to be displayed comprising a housing with transparent flat walls for containing a stand for display. A door hinged along one edge forms one of the walls of the housing. The housing is provided with upper and lower door jambs against which the door is closed. The upper door jamb has a projection spaced away from it a sufficient distance to accomodate the thickness of the door. The lower door jamb is provided with a ledge on the inside of the housing. The door is provided with a lock having a tongue on the inside to raise the door when the tongue is turned down behind the lower jamb and comes in contact with the ledge. With the use of a single lock and key the door is locked top and bottom with a single turn of the key, the upper edge of the door being wedged between the projection and the upper jamb in the locking position.

Abstract: A vehicle cab 10 with a window aperture 11 closed by a pivotable glazing panel 12. The window aperture is of vertically tapering form such that the width `W` of the lower regions of the aperture is less than higher regions of the aperture and the glazing panel 12 is of a similar vertically tapering form. A glazing panel mounting structure 13 allows the glazing panel to be moved from a generally upright closed position to a generally horizontal open position 12' by raising the panel in a vertical sense so that the lower narrower portion of the panel is in alignment with a wider higher portion of the aperture and then pivoting the lower narrower portion of the glazing panel about a first generally horizontal axis 21 through the wider higher portion of the aperture to its generally horizontal open position.

Abstract: A rotating drive mechanism for operating the wing of a swinging door, especially of a vehicle. The wing is articulated by pivoting arms to a rotating post, which it rotates along with. When the door is closed, the wing can be raised by axial displacement of the post into a locked position, where locking components on the stationary door frame and on the wing of the door engage each other. The post is driven by a strictly linear mechanism that is controlled by pressure medium and its linear motion is converted into a rotation by a helical transmission.

Abstract: A chamber door lock for a roller lock system wherein a vertically reciprocable locking bar is provided with a series of rollers and a vertically reciprocable chamber door is provided with spaced block weldments. The chamber door lock includes a cam beam pivotably mounted on the chamber and coupled to the locking bar. Upward movement of the locking bar to its uppermost position clears the rollers from the door block weldments and swings the cam beam away from the top of the door to a clearance position whereby the chamber door can be raised and swung to an open position. Downward movement of the locking bar to its lowermost position moves the rollers into engagement with striker plates on the door block weldments thereby urging the door against the chamber face so as to compress the door gasket and seal the chamber face.

Abstract: Bath tub comprising a side wall openable towards the outside by pivoting about a hinge having a vertical axis to provide an aperture for opening to access the bath tub, characterized in that the width of the opening, measured horizontally, continuously increases from bottom to top, in that the contour of the opening on the wall of the body of the bath tub has a fillister turned towards the inside of the bath tub, in that the contour cooperating with the door has a complementary fillister turned towards the outside of the bath tub, a sealing joint being provided between both fillisters, and in that the door is fitted with a handle and with a mechanism capable, under the action of the operating handle, to lift the door from its low closed position to vertically disengage both fillisters from each other at least in their remote articulation area and enable the free opening pivoting of the door towards the outside.

Abstract: A tailgate is hingedly mounted for movement about a vertical axis rearwardly and outwardly offset from a vertical post adjacent the rear corner of the load carrying bed of a vehicle. The tailgate is mounted upon the post by a hinge assembly which accommodates vertical movement of the gate relative to the vehicle bed along the hinge axis to enable vertical stakes projecting downwardly from the tailgate to be inserted into and removed from upwardly opening apertures in the vehicle bed to accommodate hinging movement of the gate to and from a positively maintained closed position.

Abstract: A door which may undergo rotational as well as vertical and horizontal movement relative to a door frame is provided. The door is provided with a lifting means which includes a slide plate which may be vertically displaced relative to the door. A lever is pivotally mounted on the door with one end having a roller which engages a slot on the slide plate and the other end having a roller which engages a block mounted on the door frame. The vertical displacement of the slide plate causes the lever's roller to ride in the slot until the roller reaches the end of the slot at which point the slide plate causes the lever to lift the door relative to the door frame. To accommodate such door movement, the door is provided with a hinge which includes a clevis mounted on the door frame which includes a lower section having a bearing surface and an upper section having an internal cavity. The internal cavity includes an internal shoulder area and slots which communicate with the lower area of the upper clevis section.

Abstract: A combat vehicle, especially an armored vehicle, with a rotating turret on a hull and with an entry-and-exit hatch that can be closed with a cover and that is mounted in the roof of the hull. The parts of the roof of the hull in the vicinity of the hatch consist of a circular plate that rotates on an axis perpendicular to the roof and in which the hatch is positioned in the plate eccentric to its axis of rotation. To make the hatch as small as possible, while permitting exit from the vehicle at all turret positions, the position of the hatch can be varied.

Abstract: A device for securing the locked position of a motor-vehicle door activated by a rotating post and that is locked or unlocked by raising and lowering the post has a disk attached to the post and a rotating support in the form of a double-armed lever mounted below the disk on a stationary section of the frame so that the support can be displaced into a position in which the disk rests on the top of one of the lever arms. The axis of rotation of the support is positioned on the frame section and lies in a plane that is perpendicular to the direction in which the rotating post is raised and lowered. The bottom of the second lever arm of the support rests on and is forced by a compression spring against a stop on the frame section and the bottom of the first arm of the support has a recess. A rotating locking element, which is also a double-armed lever with two support surfaces on one arm, engages the recess.

Abstract: A locking mechanism for coach door leaves of the type which are rotated and then driven axially upward by a powered door operating mechanism. Male and female locking bodies at the top of the door leaf shaft move together and apart axially without being radially engaged as the door leaf moves in or out at final closed position. Any external outward pushing force on the door leaf radially engages the locking bodies to prevent door opening.

Abstract: A piston and geared rack assembly are moved by pressurized air in opposite directions within a power cylinder housing as the vehicle operator registers door closing and opening commands in a solenoid valve. This lateral movement is converted to rotary movement by a pinion gear driven by the rack and coupled to turn a spindle shaft which drives the door. At full stroke during door closing, the power piston actuates a valve to charge the lower chamber of an auxiliary cylinder to move a lift piston rod, movable within the spindle shaft, to raise the closed door into a locked position. Upon a door-open command, the solenoid valve exhausts the charged cylinder chambers, admits air into the upper chamber of the auxiliary cylinder to move the lift piston and rod to lower and release the door, and slowly charges the associated opening chamber. This enables the delayed movement of the power piston and rack assembly in the opposite direction, reversing the rotation of the pinion and spindle shaft, to open the door.

Abstract: A bracket 18 is illustrated for mounting a light source 24 on a facsimile document scanner 10. The bracket 18 includes a pair of end plates 20, 22 between which the light source 24 is supported. Opposing ends of each plate 20, 22 have hinge pins 30, 30a which engage "L" shaped cutouts 38, 38a in opposing hinge plates 36, 36a mounted on the scanner 10. The hinge pins 30, 30a are held in their respective cutouts 36, 36a by coil springs 60, 60a. The remaining ends of the end plates 20, 22 have lock pins 32, 32a which engage "L" shaped cutouts 42, 42a in lock plates 40, 40a mounted on the scanner 10. Lock clips 50, 50a serves to maintain the lock pins 32, 32a in their respective lock plate cutouts 42, 42a.

Abstract: An improved mechanism is disclosed for use in mounting a door on a pressure vessel for opening and closing movements in a manner permitting minimum clearing distances to be maintained between obstructions and the front or sides of such vessel.

Abstract: An apparatus for locking a door leaf comprising a turnable shaft secured to the door by an arm to drive the door in opening and closing movements under the action of a piston-drive which produces slight axial movement of the shaft as the door approaches the closed position. A first locking element is fixed to the door frame and a second locking element is fixed to the door, the locking elements having wedge-shaped noses which interengage and lock the locking elements when the door is closed and the shaft is lifted. The locking element on the door frame includes an axial extension overlapping the nose of the locking element on the door to form an abutment to limit the degree of angular closure of the door. The axial extension can carry a friction-reducing insert to facilitate relative movement between the noses when the door is lifted at the end of the closure movement.

Abstract: The silo door of the present invention is adapted to fit in closing relation over an opening in the silo wall. The door is connected to the silo by a hinge which permits the door to swing about a vertical axis located adjacent one of the vertical side edges of the opening. A bracket connects the hinge to the door and permits inward tilting movement of the door with respect to the hinge about a horizontal tilt axis. A latch is provided for selectively detachably securing the door to the silo in rigid covering relationship over the opening.

Abstract: A plug type door for a pressurizable aircraft fuselage is mounted by a door hinge assembly for swinging movement into and out of a door opening in the fuselage. The door is composed of three segments that are hinged to each other so that the door can be folded from a fully closed position in which the three segments are serially arranged to completely cover the door opening, into an unplugged position in which the three segments are oriented in a generally Z-shaped configuration. Stop members are mounted on the fuselage adjacent the door opening and cooperate with corresponding stop members on the door to plug or secure the door in the door opening when the door is in a closed position. The stop members on the door and the door opening deregister as the door is folded to free the door for outward swinging movement about the hinge assembly.

Abstract: A fish unloading system for removing fish from the main fish hold of a fishing boat. The lower portion of the main fish hold is filled with water and sufficient salt added to cause the fish to float near the surface of the water. A power-operated self-feeding fish-impelling device having an enclosure arranged in a loop with a discharge aperture formed in its upper portion is lowered into the hold. A plurality of blades or baskets are power driven about the interior of the enclosure. A pump is arranged with its suction in communication with the fish-impelling device to continuously draw water and fish towards the blades or baskets of the impeller so as to continuously propel fish upwardly from the hold. The system is utilized to unload a plurality of auxiliary fish holds connected to the main fish hold by access hatches. Fish in the auxiliary holds are floated through the access hatches by a recirculating flow of water from the main fish hold through the auxiliary holds and back into the main hold.

Abstract: A horizontal pivot window construction. The window includes a window frame having a sill, a head, and a pair of upright jambs which interconnect the ends of the sill with the ends of the head. The window sash is mounted within the frame and the sash includes upper and lower rails and upright stiles which interconnect the opposite ends of the upper and lower rails. Means are provided for supporting the window sash within the window frame for movement of the sash between a closed and locked position and an open and unlocked position. The supporting means includes means for pivotally mounting the sash within the frame for movement about a substantially horizontal axis so as to make the normal exterior side of the window accessible from the interior of the room in which the window is located. The supporting means also includes a member for vertically moving the sash between an upper position and a lower position when the stiles and the jambs are substantially coextensive with each other.

Abstract: A rear door control mechanism for a stack-forming implement having a compressor roof first raises the door vertically to unlatch it and then rotates the door about an elevated and horizontally transverse axis to permit stack unloading. The door control mechanism functions independently of the compression roof and other wagons' mechanical systems and assures positive door unlatching before the opening mechanism attempts to open the door.

Abstract: A locking cam plate for awning windows having a flat body portion adapted to be secured to the side wall frame of the awning window, slots formed on the body portion for pivotal and swinging movement of links connected to the awning window, an open slot formed on the forward edge portion of the body portion for receiving a locking pin mounted on the vent, the open slot forming a lip portion engaged by the locking pin when the vent is in a locked position and wall means connecting the lip portion and the body portion for strengthening the lip portion whereby the vent is prevented from being forcibly opened without actuating the operator.