Abstract: An operable panel for an appliance includes a top panel that defines a hinge receptacle. A lid includes a hinge housing. A hinge is disposed within the hinge housing and extends between the lid and the top panel. A retainer includes a cap and a resilient portion. The retainer partially surrounds the hinge and the cap encloses the hinge housing. The resilient portion of the retainer biases the hinge toward the cap and the hinge receptacle.

Abstract: A first moulding element is arranged on a vertical edge of a door leaf, and at least one second moulding element is arranged on a vertical strut of a door frame, wherein the first moulding element and the second moulding element intermesh automatically only in the closed position of the door leaf in such a manner that a direct or indirect form fit is automatically produced between the first moulding element and the second moulding element, as seen in a direction perpendicular to the plane of the door leaf, but such a form fit is automatically removed in a position of the door leaf differing from the closed position.

Abstract: A method and apparatus for reconfiguring a lavatory area. An apparatus comprises a first lavatory area, a second lavatory area, a first door for the first lavatory area, and a second door for the second lavatory area. The first door and the second door are configured to move between an open position and a closed position. A single passageway is present in both the first lavatory area and the second lavatory area when the first door and the second door are in the open position.

Abstract: A frameless window module allows operable windows to be placed in any location of a wood stud frame wall without compromising the load bearing capability of the studs thereof. By using lift-off pivot hinges, two (2) panes of glass are respectively pivotally mounted to the exterior and interior surfaces of the wood stud frame wall. Pneumatic gaskets enable to controllably regulate the air interspace captured thereby to provide a variable-insulation aperture. Interconnection hinges cause the two (2) glass panes of a module to move in concert and/or serve to securely lock them in their closed position.

Abstract: A closure is shown for an equipment sub. A closure door is carried by a sub body and movable thereto between open and closed positions for providing access to a pressure vessel. Various improvements are disclosed including a new mechanism for positioning wedge shaped arcuate segments between the door and the sub body, a retainer mechanism for guiding movement of cross bars, a split hinge adjustment mechanism for adjusting planarity and concentricity between the closure door and the sub body, an increased annular wall body thickness region surrounding the sealing surface for reducing warpage during welding, a pressure lock rod member which also engages a combination of cross bars and a crank for driving the cross bars, and a pry bar that can facilitate better manually operated leveraging of the closure door.

Abstract: A waterproof mechanism includes a base wall, at least one door plate, a first waterproof seal, and at least one return spring. The base wall is formed with an opening. The door plate is connected to the base wall for closing the opening in the base wall. The door plate is pushable to perform a motion relative to the base wall to thereby open the opening. The first waterproof seal is disposed between the base wall and the door plate and around the opening so as to establish a water-tight seal between the base wall and the door plate. The return spring is disposed between the base wall and the door plate for biasing the door plate to close the opening.

Abstract: A cover-type apparatus with a simplified locking structure includes a first body, a second body and an interlocking mechanism for fastening the second body and the first body together. The interlocking mechanism includes a hook disposed on the first body, and an elastic member disposed on the second body and being engageable with the hook. The elastic member deforms elastically in response to a force exerted thereon by the hook.

Abstract: An assembly of a frame and doors with a lifting device to position the assembly in an open end of a storage container for conversion to access from opposing ends, the frame including side plates and end plates that abut respective side walls and end edges of end of the storage container from which an end panel is removed, and the lifting device attached to the assembly to hold the assembly in the end while rigidly connecting the assembly to the storage container. A method of converting a storage container for dual opposing access is disclosed.

Abstract: An image forming apparatus includes a main body unit which has an image forming unit; a door unit which couples with the main body unit to open and close the main body unit, and has a projection at one side thereof; a mid-transfer unit which couples with the door unit; a coupling knob which is provided in the main body unit and rotates in cooperation with pressure of the projection when the door unit is closed; and a coupling apparatus which is provided in the main body and transmits a driving force from the main body unit to the mid-transfer unit in cooperation with the rotation of the coupling knob.

Abstract: A bulk material handling system comprising an enclosure, a door frame, and an access door. The door frame is secured to a wall of the enclosure adjacent an access opening. The exterior surface of the door frame is devoid of horizontal surface portions when the enclosure is oriented with the wall of the enclosure in a vertical position. The access door is releasably secured to the door frame and is movable between a closed position and an open position. The exterior surface of the door is devoid of horizontal surface portions when the access door is in the closed position and the enclosure is oriented with the wall of the enclosure in the vertical position.

Abstract: A closure is shown for an equipment sub. A closure door is carried by a sub body and movable thereto between open and closed positions for providing access to a pressure vessel. Various improvements are disclosed including a new mechanism for positioning wedge shaped arcuate segments between the door and the sub body, a retainer mechanism for guiding movement of cross bars, a split hinge adjustment mechanism for adjusting planarity and concentricity between the closure door and the sub body, an increased annular wall body thickness region surrounding the sealing surface for reducing warpage during welding, a pressure lock rod member which also engages a combination of cross bars and a crank for driving the cross bars, and a pry bar that can facilitate better manually operated leveraging of the closure door.

Abstract: Described is an animal door for providing an animal a passageway through a structure and for reducing thermal transfer through the passageway. The animal door defines the passageway, which is sufficiently large for the animal to pass through, and is adapted to be secured to the structure such that the animal can pass through the structure by passing through the passageway. The animal door includes at least three flaps disposed at the passageway. The flaps are constructed and configured to reduce thermal transfer through the passageway by reducing both thermal convection and thermal conductivity at the passageway.

Abstract: A track and arm type door controller assembly. A channel member and a gripping member each having a toothed surface are provided, with the gripping member slidably disposed in the channel member. When the pin is retracted, the gripping member teeth are spaced from the channel member teeth, and the gripping member may freely slide along the track. When the pin is advanced, the teeth engage and the gripping member is in a fixed, non-sliding position. An elongated spring and a spring clip or a latch may be provided that releasably engage to hold the door open. A set screw may adjust the tightness of the engagement of the elongated spring and spring clip of latch. A friction assembly may be provided to slow the motion of the door.

Abstract: A gate having a latching mechanism which requires two distinctly different unlatching movements which occur in distinctly different directions, but where both of these unlatching movements can be performed with the use of only one hand. In addition, timer/alarm capabilities are provided to emit an alert signal in situations where the gate has been opened and has not been reclosed within a given time interval after the gate was opened. The gate has a self-closing spring assembly arranged within a pivot assembly. All of the above capabilities are obtained through a greatly simplified design which is extremely rugged and provides highly reliable service.

Abstract: An aircraft servicing pit that defines a subsurface chamber below a surface across which aircraft travel when not airborne is formed of a prefabricated pit body atop which a pit lid is mounted for rotation. Within the enclosure of the pit beneath the surface across which the aircraft travel a counterweight system is connected by gears to pit lid supporting arms. The pit lid supporting arms have proximal ends rigidly joined to pit lid gears, which are meshed with counterweight gears rigidly joined to counterweight arms supporting counterweights within the enclosure of the pit. The pit lid and counterweight arms move in counterrotation when the pit lid is opened and closed, with the gravitational force acting upon the counterweights acting in opposition to the force of gravity upon the pit lid.

Abstract: A hatch or door system secures and seals an opening in a surrounding structure, such as a horizontal or vertical surface of a marine vessel. A panel having at least two straight edges is rotatably mountable to the surrounding surface. An operating mechanism is mounted on the surrounding structure, rather than on the panel, to retain the panel in the closed position. The operating mechanism includes dogging members configured to apply a force along at least a portion extending continuously along each of the two straight edges when in a panel-securing position. A gasketing mechanism is included to seal the panel in the closed position.

Abstract: A computer chassis includes a door mounted on the chassis. A hinge pivotally interconnects the door and the chassis. The hinge has a first end connected to the chassis and a second end connected to the door. A pair of spaced apart resilient receivers are provided on the chassis. A cam extension on the hinge is engaged for flexing the resilient receivers in response to pivotal movement of the hinge.

Abstract: A lifting apparatus for a two-leaf folding flap, whose upper leaf is hinged to a top or partition wall of a cupboard around a horizontal first axle and whose lower leaf is pivotally connected to the upper leaf around a second axle parallel to the first axle, comprises at least one two-armed lever which is pivotally mounted to a side body part around a horizontal pivot axle and whose longer arm is linked to the lower leaf. One end of the compressing spring element is pivotally connected to the body part and the other end is pivotally connected to the lever. To prevent the leaf from coming into contact with the end surfaces of body parts of the cupboard closed by the folding flap, the lever is guided in a longitudinally displaceable manner on its pivot axle and the shorter lever arm is guided in a cam guide fixed to the body via a slide block or a roller.

Abstract: The invention relates to a device for preventing insertion from the outside of instruments that could pivot the control bar situated on the inside of the skylight. The device is constituted by a box and two narrow strips positioned in an offset manner so as to form a baffle preventing any instrument being inserted while leaving a free passage for ventilation air. Spacers serve to stiffen the assembly. A cap protects the control lever for opening the lock of the skylight, and a fork enables the latch existing on the skylight to be moved.

Abstract: A window sash (3) is mounted on a stationary frame (2) so as to be only rotatable about a horizontal axis but not tiltable using a lower corner bearing (5) such as is also used for turning-tilting fittings, and using an upper hinge bearing (9), which is connected to the sash via a support arm (11). The support arm (11) is sufficiently flexible in the vertical direction in order to be able to follow the vertical adjustment movements of the sash which are carried out at the corner bearing (5). Using a guide part (29a) engaging in the rabbet groove of the sash (3), the support arm (11) is guided vertically and is supported against motions perpendicular to the sash plane.

Abstract: A truck comprises a motorized body including a chassis and a cab. The cab includes opposed sidewalls, one of which includes an access opening having front and rear edge portions. The door that covers the access opening comprises upper and lower panels. The lower panel is pivotally attached to the front edge portion of the opening to rotate about a first substantially vertical axis of rotation between open and closed positions. The upper panel is hinged to the rear edge portion of the opening to rotate about a second substantially vertical axis of rotation between open and closed positions. The upper and lower panels are sized and configured such that, when each is rotated to its closed position, each spans the opening of the cab, and the upper panel is disposed above the lower panel. In such a configuration, the lower panel can be closed to protect the driver, and the upper panel can be moved to its open position to provide ventilation.

Abstract: A double egress frame and door unit comprising: a first jamb having a first jamb stop thereon and having a soffit adjacent the stop; a second jamb having a second jamb stop thereon and having a soffit adjacent the stop; a first door swinging in a first direction and being connected to the first jamb by hinges; a second door swinging in a second direction opposite to the first direction and being connected to the second jamb by hinges; a header connected to an upper end of the first and second jambs, the header having first and second header stops thereon, the first header stop being coplanar with the first jamb stop, the second header stop being coplanar with the second jamb stop; and the hinges connecting the first door to the first jamb and connecting the second door to the second jamb permitting each door to swing clear of the soffit of the jambs when the doors are in an open position.

Abstract: A modular window electronic sign is provided for outdoor use. The sign is provided with a walk-in cabinet or housing with a forward facing informational display surface viewable through an opening in the cabinet. The window is comprised of a series of vertically elongated transparent lenses which have a truncated U-shaped cross section. The legs of the lenses extend rearwardly from the front face of the lens to behind the display surface. Water is prevented from entering into the enclosure through the window by seals on the legs of the lenses out of sight behind the display surface. A method of maintaining the sign from the interior of the cabinet is also provided by flexing and rotating the lenses, the front of the window may be cleaned from the interior of the cabinet. A method of maintaining and replacing modular electronic components of the sign from within the cabinet is also provided.

Abstract: For refrigeration units such as walk-in coolers and freezers, a shell, door frame and door panel assembly adapted to enclosed insulative panel constructions wherein the shell confines a selected standard and/or oversize door frame. The door frames are of composite plastic and steel construction including lightweight external plastic hardtracks forming top, sides and screed bottom, the purposes of the external construction being to confine frame elements which are formed of steel, such that by virtue of the separation of elements forming jamb frames and header frames, applied insulation to the overall assembly is rendered most effective. The standard and oversize door panel assemblies are adapted to encompass a precut retainer by means of inside and outside panels, the latter of which contains backup plates for hinges and for door closers and the like.

Abstract: An improved door structure for a refrigerator capable of increasing usable space of refrigerator by removing an intermediate insulation wall of a refrigerating compartment and of preventing cooled air in the refrigerating compartment from discharging to the outside of the refrigerator by providing a door sealing member which includes a door sealing member hinged to the door so as to prevent a cooled air from discharging to the outside of the system and vertically rotatable in the door opening direction, wherein a cam provided at both sides of the door sealing member and a cam guide provided at a side wall of the refrigerating compartment, so that the door sealing member is rotatable in cooperation with the cam and the cam guide.

Abstract: A glass front merchandiser having a refrigerated cabinet with a product zone normally closed by a glass front panel having a hinging side margin, the glass front panel including an outer glass pane and a structural frame member secured adjacent to the peripheral edge thereof along its hinging side margin, a hinge directly connected to the structural frame member and being constructed and arranged for hinging movement of the glass front panel on the refrigerated cabinet to open up the product zone, the outer peripheral edge of the structural frame member overhanging the hinge in a closed sealing position of the glass front panel with the merchandiser cabinet, and other seals constructed and arranged along the side margins of the glass front panel.

Abstract: The present invention relates to a two way animal door adapted to be installed in an existing door to allow two way travel of household pets. More specifically, the present invention pertains to a frame which is inserted into a rectangular aperture formed within an existing door. The frame carries a centrally located post which serves to divide the frame into two equal portions. Within the frame are position a first and a second door. The first door is openable only in one direction, while the second door is openable only the opposite direction. Each of the doors is mounted to the surrounding frame by way of adjustable spring biased hinges. The various components of the present invention and the manner in which they interrelate will be described in greater detail hereinafter.

Abstract: A low drag tailgate is shown which can be installed within a tailgate opening at the trailing end of the open top cargo compartment of a vehicle. A louver retaining frame is mounted as a portion of the conventional tailgate which has an outer extent mounted generally flush with the exterior sidewall of the tailgate and having an inner extent which provides an opening for the passage of air from the vehicle cargo compartment through the frame. Louvers are pivotally mounted within the louver retaining frame. At least selected ones of the louvers have a counterweight installed thereon which determines the position of the louver as the tailgate is raised and lowered.

Abstract: The mini storage silo comprises a tall, enclosed, octagonal structure which has a conical roof, two doors that swing away from one another to create a large opening into the interior thereof, an elevated floor, and a plurality of adjustable shelves therein. Optionally, the lower portion of the silo may serve as a dog house, with a canine entry being set into one of the walls just above the level of the floor.

Abstract: A door framing spacer apparatus (41, 41a) and method for use with a pre-hung door (21, 21a) to enable installation of the door in a door opening (31). The spacer assembly (41, 41a) is formed for positioning between the door (21) and a door jamb member (27) or the door (21) and another door (21a). The portion of the spacer (41, 41a) between the door (21) and jamb member (27) has a thickness dimension (t) therebetween substantially equal to a desired reveal space (29) to be maintained between the door (21) and jamb (27). The spacer (41, 41a) can include a door portion (46, 46a) which is secured by a fastener (43, 43a) to the door and a jamb portion (47, 47a) which is secured by a fastener (42, 42a) to the jamb. The spacer additionally includes a connecting portion (48) between the door and jamb portions which couples the two together as a unit and in turn couples the door (21) to the jamb assembly (23) to enable manipulation of the assembly during installation.

Abstract: An angulated door assembly affording reduced entry and exit time and motion therethrough. Each door is angulated relative to the adjacent walls and/or the conventional path of ingress/egress therethrough. Such an assembly configuration affords increased sealing capacity as well as convenience for the user. The door opens and closes faster by swinging less than a conventional door, which presents itself orthogonally to the path of ingress/egress. By utilizing a pair of angulated doorways, the doors self-seal against each other while providing the advantages of angulated disposition relative to the path of ingress/egress.

Abstract: A basement vent includes a frame and a screened opening. A plurality of louvers cover said frame. The louvers each include tabs which slide within slots in the frame. The tabs each include a detent section that permit the louvers to be held in an open position for use in the summer months and permit the louvers to be closed during the winter months.

Abstract: A pickup truck bed has a split tailgate construction having a first gate member pivotally mounted in a parallel relationship relative to a second gate member positioned above the first gate member. The first gate member is arranged for pivotment to provide for airfoil orientation of the second gate member, with the first gate member arranged to permit pivotment of the first gate member against the floor of the pickup truck bed to permit airflow therethrough.

Abstract: In a window for installation in an inclined roof (1) the main frame (2; 3) includes a top-hinged upper window frame (12) and a bottom-hinged lower window frame (4) to be opened outwards into horizontal and vertical positions to form a shedroof above and a breast wall of a balcony-like enlargement. The lower frame (4) is hinged to the main frame (2; 3) in such a manner that its bottom section (4') in the open position is displaced downwards from the bottom section (2 ) of the main frame to reduce the height of the top edge of the frame above the latter bottom section.

Abstract: A novel TARGA top assembly which is of a lightweight folding configuration adapted to be installed in the roof of a vehicle of the type having a rear roof portion and a forward roof portion. The TARGA top assembly of the present invention comprises a pair of fiberglass, contour-shaped panels having a ridge along the periphery thereof and being shaped to conform to the accessible region between the forward and rear roof portions of the vehicle. A fabric-type covering similar to those fabrics used for vinyl or convertible vehicle tops may be used on the exterior surface of the roof assembly of the present invention, primarily for aesthetic appearance purposes but also to prevent the spaced region between the two panels from admitting any rain or air during vehicle operation.

Abstract: A backhoe loader has an enclosed cab, the opposite sides of which are essentially formed by large side windows. Each side window is formed by front and rear window panels that are mirror images of one another and are joined at their inner edges by a vertical hinge structure that permits either the front or rear window panel to swing 180.degree. from a closed to an open position, one window panel being closed while the other is fully opened. The hinge structure is formed by a pair of pivots respectively attached to the upper and lower portions of the window frame and a pair of relatively narrow hinge elements swingable on the pivot pins.

Abstract: A modular assembly for an indoor shutter includes fully functional louvers and is assembled from extruded and/or injection molded plastic components designed to provide complete symmetry to the assembly, both side-to-side and bottom-to-top. Two identical bottom (or top) half frame members are secured together with a pair of connector members. A pair of side rail channels are slid down over the ends of the bottom frame members and enclose the connector members therein. A pivotal louver and a pair of louver supports are alternately slid into the side rail channels with the louver pivots captured between cylindrical notches on the upper and lower faces of vertically adjacent louver supports. The top frame member is connected and closed off in the same manner as the bottom frame, utilizing identical components. Common uniform control of the position of the louvers is provided by a control arm disposed within the open interior of a side frame member and completely hidden after the shutter is assembled.

Abstract: A modular assembly for an indoor shutter includes fully functional louvers and is assembled from extruded and/or injection molded plastic components designed to provide complete symmetry to the assembly, both side-to-side and botom-to-top. Two identical bottom (or top) half frame members are secured together with a pair of connector members. A pair of side rail channels are slid down over the ends of the bottom frame members and enclose the connector members therein. A pivotal louver and a pair of louver supports are alternately slid into the side rail channels with the louver pivots captured between cylindrical notches on the upper and lower faces of vertically adjacent louver supports. The top frame member is connected and closed off in the same manner as the bottom frame, utilizing identical components.

Abstract: The passage of a scupper drain is normally maintained in a closed position by a pair of spring-biased semi-circular pivotal flaps which are mounted within a housing provided with an associated cap, thus permitting the flaps to only pivot downwardly for opening the drain to water discharge and preventing vermin from leaving the drain when the flaps are disposed in the closed position.

Abstract: Apparatus is disclosed for mounting a plurality of doors to the weapons bay of an aircraft such that each door is pivotal about one of two hinge lines. Generally, the apparatus includes a door-operating assembly for displacing each of said plurality of doors. A journal assembly is provided for supporting each said door such that the door is pivotal about either a first or second axis. The journal assembly includes a housing portion which is fixed to an end wall of the weapons bay and a bearing portion which is fixed to the door. The operating mechanism is responsive to an input signal for selectively displacing the door such that the door pivots about either the first or second axis.

Abstract: The product display device of the present invention comprises a cabinet frame having a front opening therein. Two or more doors are positioned in covering relation over the front opening so as to form an enclosed compartment within the cabinet frame. Each of the doors includes an upper edge, a lower edge, a latching edge, a hinge edge, a front face and a rear face. The doors are arranged in side-by-side relationship with one another with the hinge edge of one door being adjacent the latching edge of the other door. The hinge edges of the doors are hinged at their upper and lower ends to the cabinet frame. A stop member is attached to the hinge edge of the first door and includes a latch surface extending laterally from the hinge edge and being in facing relationship to the rear face of the latching edge of the other door. A seal is attached to the rear face of the second door and sealingly engages the latch surface of the stop member of the first door to form a seal therebetween.

Abstract: An agricultural wagon protective cover as set forth formed of relatively rigid material such as reinforced fiber glass. The invention maintains its geometric integrity throughout its working environment. Formed with a single open hatch or alternatively of plural hatches, my cover enables filling of a single or compartmentalized agricultural wagon. A catwalk is provided for accessibility to the covers and access to the interior of said wagon. Optional limit switches are provided to enable indication of complete closure of the pivoting individual or several hatches.

Abstract: An oven especially--but not exclusively--for baking French bread has a single loading opening which is closed by a principal door having a fill opening therein which, in turn, is closed by a series of small longitudinal, superimposed folding doors. One edge of each folding door covers the adjacent edge of the folding door immediately next to it. The small doors either pivot over an arc 180.degree. or slide laterally. The back of the oven may be equipped with a set of doors, such as the small doors. A gap separates the front edge of plates for supporting the bread and the plane of the interior side of the small doors. The plates are relatively thin, movable perforated sheets. The ends of a latch or hook-up bar may slide into supports on the stiles of the loading opening or be held in struts provided on each side of the small doors.

Abstract: In combination a shower stall structure for bathtubs or shower basins having a top and bottom comprising at least one opening extending from top to bottom defined by a multiplicity of stiles each stile extending in both a horizontal and vertical direction abutting an adjacent wall or stile, wherein at least one opening is closed by more than one closure member spanning across the at least one opening, having pivot mechanisms carried by both the multiplicity of stiles and the more than one closure member at the peripheral extremities thereof wherein the pivot mechanisms are adjustable in position along the respective peripheral edges of at least one of the multiplicity of stiles and the more than one closure member, allowing for dimensional variation of such as the at least one opening with respect to the dimensions of the corner in which the shower stall is installed.

Abstract: A mechanism for opening and closing a lid is disclosed, which includes a rotary damper and an auxiliary rotary damper. An input gear of the rotary damper is in mesh with an output gear of a lid. An input gear of the auxiliary rotary damper is in mesh with the output gear of the lid or the input gear of the rotary damper. Thus, the lid can be sufficiently braked during the opening and closing operations.

Abstract: A window to be used as a skylight or a front window and comprising a frame (1) and two window wings (2, 3) situated above one another on the outside of said frame and being pivotably openable about mutually parallel, especially horizontal axes (17, 18), and which in their open positions can be situated closely below one another in the upper opening of the frame. The two window wings (2, 3) are mutually separated and separately movable and are positioned completely outside the frame (1) both in their closed as well as in their open positions.In this manner a window is obtained which is inexpensive to manufacture and which allows many adjustment possibilities including a completely open position with a clear view and a great emergency exit, and where the loads on each wing are relatively insignificant.

Abstract: A freight container for bulk and non-bulk cargoes comprising a substantially box-like structure with at least one hatch in the roof through which bulk cargo can be loaded and two main doors (4,5) to one end of the container through which non-bulk cargo can be loaded and unloaded. A latch (6) extends substantially the full width of the end of the container and is incorporated in one of the two main doors (4,5) through which bulk cargo can be unloaded.

Abstract: A skylight assembly including a frame for securement within an opening in a pitched roof, and a window supported within the frame. Water flowing down the roof is directed, such as by a specially shaped flashing, to flow on to the window, and water flowing down the window is directed, such as by another specially shaped flashing, to flow on to the roof below the skylight frame. No part of the window projects outwardly beyond the outer edge of the skylight frame, and the window pivots inwardly to open the slylight. A window screen automatically advances to cover the opening when the window is opened, and shades of different types can be pulled across the window.

Abstract: Loading doors for a container such as a transfer container for domestic waste which cooperates with a compactor loader having a horizontally reciprocating ram comprise a plurality of flaps which effectively close an opening sized to correspond with a spigot of the compactor loader the doors being opened by mechanical connection with a part of the compactor loader and resulting from relative movement between it and the door.

Abstract: A window with a pivotable frame having different inclinations with respect to the sun when in closed condition. There are two inclined fixed casings whose planes cross each other along a straight line which serves as pivoting axis for a window frame. In the closed state of the frame in the first casing the frame is parallel to the rays of the sun on fht day of the summer solstice, and in the second casing it is perpendicular to the rays on the day of the winter solstice.