Abstract: A cabinet formed from a unitary open-faced cubicle structure having two lateral walls, an upper wall, a bottom wall, and a rear wall. A door closes the open face of the structure. The cabinet has at least one chimney along one lateral wall, the chimney extending from the front, open face to the rear wall of the cabinet. The chimney opens at both the rear wall of the structure and the front face of the structure. The opening at the front face is positioned to receive a lock carried by the door. Therefore, the lock is isolated from the interior of the cabinet, and the interior is protected from entry of dust and moisture. The cabinet also has a flashing system in the vicinity of its edges, which prevents entry of water into the interior of the cabinet. Additionally, the cabinet has edges in the vicinity of the door that provide additional pressure on seals within the door.

Abstract: The invention consists of a slant top cabinet for a video game where the video monitor is located beneath a door. The side edges of the door mate with gutters such that liquid spilled into the seam of the door will drain into the gutters away from the monitor. A rubber seal is attached to and surrounds the monitor such that liquid spilled on the screen or game top will drain into the rubber seal. The rubber seal includes a port that connects to a conduit for draining liquid from the rubber seal away from the monitor.

Abstract: An object of the present invention is to provide a refrigerator showcase enabling to smoothly dispose of dewing occurring on an upper surface of a glass door; the showcase in which the door includes a frame body having a form similar to a picture frame; a transparent glass mounted inside the frame body; a drainage passage formed inside the frame body located in the supported side of the door; and a water collection portion formed in a portion where the frame body contacts the upper surface of the transparent glass in the supported side of the door; whereby the drainage passage connects a space formed above the transparent glass to the machine room, and the water collection portion slopes down to the drainage passage in the open state of the door.

Abstract: An angle stop box includes a generally rectangular housing having a bottom wall and a pair of sidewalls connected to the bottom wall. The bottom wall has a pair of holes extending therethrough. A pair of angle stop valves have their male shanks mounted in corresponding holes in the bottom wall of the housing. A drain fitting receptacle is formed in an upper part of the housing for coupling to a downstream end of a P-trap on a forward side of the drain fitting receptacle and for coupling to drain and vent pipes on a rear side of the drain fitting receptacle. The drain fitting receptacle includes a cylindrical sleeve for receiving a forward end of a pipe fitting, such as a ninety-degree elbow or a T-shaped fitting. The housing has a flange that extends around an entire periphery thereof for facilitating the attachment of the box to one or more studs by nailing therethrough.

Abstract: An improvement in countertop mounted cutting apparatus comprising a bracket adapted to fit into an opening in the countertop for supporting a cutting board, the bracket including a flange portion overlapping the countertop adjacent the opening, characterized by a knife scabbard adjacent the cutting board and supported by the bracket, the knife scabbard having individual slots of varying lengths to receive knives of varying blade widths.

Abstract: The present invention is a catch container for retaining debris or other materials wiped from the edge of a work surface. The present invention catch container includes a receptacle structure, a mounting bracket adjustably attached to the receptacle structure, and a sloped surface descending toward the receptacle from the mounting bracket. The present invention catch container is mounted under a work surface so that debris displaced from the work surface lands upon the sloped surface. The sloped surface then guides the debris into the receptacle without slashing or spillage.

Abstract: This invention relates to a receptacle for receiving umbrellas and in particular to one including a housing provided with a plurality of conical recesses which water may penetrate through, a sleeve enclosing and being separated from each of the conical recesses and having a water outlet thereby forming a passage between the sleeve and each of the conical recesses, a pump disposed under the sleeve, and a container mounted under the water outlet of the sleeve and the pump, whereby the water attached on the umbrellas may be automatically removed and dried.

Abstract: A dishwasher tub and support assembly includes a base having a horizontal base support member with first and second spaced apart apertures being formed therein. A tub includes a pair of pedestal legs having a first and second pair of tabs extending downwardly therefrom. The tabs are positioned so as to register with the spaced apart first and second apertures of the base. The first pair of tabs is inserted into the first apertures of the base, and the tub is pivoted so that the second pair of tabs fit within the second apertures of the base. Both the first and second tabs hold the tub against vertical and horizontal movement relative to the base.

Abstract: An adjustable counterbalance system is provided for an appliance cabinet having a door hinged to the cabinet for movement from a closed to an opened position. A counterbalance spring includes one end connected to the door and another end connected to a movable bracket which is mounted adjacent the lower edge of the cabinet wall. The bracket includes a lead screw which is positioned on the interior of the cabinet wall and which is accessible through an access opening in the front wall of the cabinet. Movement of the bracket toward and away from the door adjusts the tension in the spring.

Abstract: An anti-destruction structure for an automatic vending machine includes a plurality of holes formed through a bottom plate mounted securely on the lower end portion of a housing, and a porous auxiliary plate fixed in the housing just above the bottom plate. The auxiliary plate has a plurality of holes formed therethrough. The holes of the auxiliary plate are communicated with and staggered relative to the holes of the bottom plate.

Abstract: A portable soap caddy assembly with a toiletry receptacle having an opening and a sidewall for holding various toiletries and having means for mounting the receptacle to a vertical wall with opening facing upwardly. This assembly provides an auxiliary receptacle with an opening and sidewalls and a mounting assembly for movably mounting the auxiliary receptacle to the toiletry receptacle between a first open position where the sidewall of the toiletry receptacle closes the opening of the auxiliary receptacle and a second position where the auxiliary opening is opened facing upwardly. A further assembly has an auxiliary receptacle with an opening, sidewall and bottom and means for mounting the auxiliary receptacle to the toilety receptacle to close the opening of the toiletry receptacle.

Abstract: A lottery ticket scratch tray is herein provided to promote the clean and efficient removal of opaque coverings shielding lottery ticket variables. The device includes a square or rectangularly shaped smooth surface surrounded by four walls. Built into the device is a slot through which debris from spent tickets may be deposited. This debris stored beneath the smooth surface and may be disposed of through the removal of a slidable drawer which serves as the storage compartment. The device further contains a novel hook-and-loop fastening system to aid in the storage of the device.

Abstract: A laundry hamper assembly including a housing structured to support several laundry baskets and a soaking tub for the collection and segregated storage of soiled laundry therein prior to washing. The laundry baskets and at least one soaking tub are each similarly configured, being adapted for receipt through and support within openings on a top of the housing. A drip compartment having a water tight construction and drain valve is disposed within the housing having hooks on an inner wall, wherein wet laundry can be hung and allowed to drip dry. A clothes pin tray formed in the top of the housing allows for the storage of clothes pin therein, and a covering lid hingedly attached to the housing is movable between an open and closed position so as to effectively cover the top of the housing.

Abstract: A kitchenware drying rack comprising a central frame, which has outwardly extending arms for holding kitchenware, mounted on a base adapted to rest on a flat surface adjacent a sink basin, and a platform that connects with the base lower end and extends downwardly into the sink basin to stabilize the rack and prevent its tipping.

Abstract: An environmental housing is described and is especially adapted for supporting a video monitor outdoors in connection with a video merchandising system. The video merchandising system advantageously provides point-of-purchase advertising and promotion of various goods or services as a retail establishment such as a gasoline service station. The housing preferably comprises a substantially rectangular cabinet having first and second sides, a top, a bottom and a back. A door is attached to the cabinet and includes a chemically-treated glare-resistant window. A video monitor is supported in the cabinet for displaying television commercials or like programming material under the control of the merchandising system. The housing includes a vent slot in at least one of the sides or back of the cabinet for venting the inside of the cabinet and substantially preventing water from entering the cabinet.

Abstract: A storage cabinet for grinder plates and knives is set forth particularly to be used in a butcher shop. Disk-like grinder plates and multi-edged rotary knives are stored on hooks in a housing having a front door, the door being supported by a long piano hinge at one end to hold the grinder plates and knives in view through a translucent window in said housing. A separate compartment with a separate door with separate hangers is included for dirty grinder plates and knives.

Abstract: An insulation panel for an appliance for reducing one or more undesirable side effects due to the operation of the appliance such as noise, vibration and heat includes a first layer of enclosing material such as polyethylene or polypropylene which has greater tear resistance and configuring this first layer of enclosing material to a size and shape based upon the appliance and the area of the appliance to be covered. Next, a second layer of similar enclosing material is selected and configured so as to having a matching peripheral edge or contour with the first layer. Ultimately these two layers of enclosing material are joined together around their peripheral edges so as to define and completely enclose an interior cavity. Into this interior cavity a blanket of insulating material is dispersed of a generally uniform blanket thickness. In certain applications, the insulating material includes a binder so that the insulating material will not shift or settle relative to the enclosed cavity.

Abstract: A washing machine box for being mounted between two adjacent studs in a wall and for allowing first and second water supply lines and a drain line to be coupled to first and second water hoses and a drain hose, respectively, of a washing machine. The box includes a first side wall; a second side wall; and a base member having a first end attached to the first side wall and having a second end attached to the second side wall.

Abstract: Washing machine connection boxes can be constructed so as to be useful in a variety of "difficult" or "tight" situations by forming the bottoms of such boxes so that a drain pipe and two water supply lines can be installed so as to be connected to said bottom in whatever sequence or series is most advantageous as a result of the way that such a drain pipe and such lines are provided by a plumber adjacent to the box.

Abstract: A strain relief clamp for a washing machine drain hose which includes a pair of hinged clamp members each having a plastic plate with a semi-circular indent adapted for receiving a corrugated drain hose from opposite sides thereby completely surrounding and clamping the drain hose. Each clamp member has a wall which is perpendicular to the plate, which wall members cooperatively form a neck which conforms to the shape of the aperture through which the drain hose exits the washer cabinet. Each wall has a plurality of locking tabs such that when the neck is inserted into the aperture until the plates contact the cabinet panel, the locking tabs snap into place and prevent removal of the strain relief clamp. The hose is thereby securely clamped at its exit through the cabinet panel thereby providing strain relief for the interconnection between the drain hose and the pump.

Abstract: A protective cover for electronic equipment automatically expanding by the spring action of a pair of telescoping arms (24) having a cover (48) of resilient material attached between. The arms (24) are positioned contiguous with a pair of bases (20) that are located parallel with each other on the floor on either side of the electronic equipment with a hinged cover enclosure (50) between the ends forming a "U" shape. The arms (24) are connected on the ends by a strut (26) holding the cover (48). Solenoids (58) retain the arms in a tensioned position and when electrically actuated release them. The spring action pivots the arms with its accompanying cover completely enveloping the equipment. A lever (64) arrangement overrides the solenoid action manually releasing the arms. The device is reset by manually rotating and compressing the arms while folding the cover (48) into the enclosure (50). The object is to protect expensive equipment from fire, smoke and water damage if a fire is in the vicinity.

Abstract: An apparatus for handling hairstyling brushes which includes a pair of end walls, a back wall secured to the end walls, a bottom attached to the end walls and the back wall, an upright support wall connected to the bottom and to the back wall. The apparatus for handling hairstyling brushes additionally includes a cross brace attached to the support wall and to one of the end walls, an upper door pivotally attached to the cross brace, a lower door pivotally connected to the bottom underneath the upper door, and a perforate tray slidably positioned to the upright support wall and to one of the end walls behind the upper door.

Abstract: A surgical case cart having a closed container supported on a chassis. The closed container includes a pair of front door panels hinged to side door panels which in turn are hinged to side wall sections, so that the container can be completely opened with the front and portions of the sides being exposed by the door panels wrapping around the side and back. The door panels are formed of single pan construction so as to avoid cracks and crevices, and yet exhibit rigidity of a double pan door construction. The lower edges of the door panels provide a baffle effect to reduce the movement of contaminated air into the cart. The top of the cart contains an overhang lip to prevent liquids from spilling into the container. Stem mounted casters are utilized to avoid flat horizontal surfaces on which dirt can collect. The intersection between the back, sides and chassis is constructed to avoid the possibility of collecting contamination and bacteria.

Abstract: A modular disc storage and dispensing device is shown, particularly adapted to storing and dispensing discs such as circular saw blades. The device comprises a plurality of disc-holding, pivotal, semicircular cradles positioned between pairs of slotted partition modules connected laterally together by means of fasteners. In their disc storage mode, the cradles are positioned so as to rest on the bottom of the device in an upwardly, concave position. When dispensing of a disc is required, a tab connected to the front of the cradle holding the selected disc is depressed, forcing a boss, also connected to the cradle and positioned in the slot of an adjacent partition, to move downwardly in the slot, causing the cradle to rotate upwardly to a concave forward position. As a result of the cradle's change in position, the contained disc is partially projected beyond the front of the device, where it may easily be grasped and removed.

Abstract: A compartmented kitchen utensil holding caddy having removable partitions is provided in a wall-hung or counter top container capable of holding a wide variety of separated kitchen utensils. Provisions are incorporated into the device for preventing cross contamination of soiled utensils and for removing and retaining unwanted drippings from the utensil area.

Abstract: The invention provides a leg protection device for furniture to prevent insects from entering the furniture. The device includes liquid receptacles which have central sleeves for receiving furniture legs. A liquid such as water can be put into a chamber of each receptacle around each sleeve. Conduit means are provided to intercommunicate the receptacles for conveniently discharging used water or filling fresh water. The liquid receptacles are enclosed below a bottom wall of the furniture so as to avoid contamination of the liquid in the receptacles.

Abstract: A surgical case cart having a closed container supported on a chassis. The closed container includes a pair of front door panels hinged to side door panels which in turn are hinged to side wall sections, so that the container can be completely opened with the front and portions of the sides being exposed by the door panels wrapping around the side and back. The door panels are formed of single pan construction so as to avoid cracks and crevices, and yet exhibit rigidity of a double pan door construction. The lower edges of the door panels provide a baffle effect to reduce the movement of contaminated air into the cart. The top of the cart contains an overhang lip to prevent liquids from spilling into the container. Stem mounted casters are utilized to avoid flat horizontal surfaces on which dirt can collect. The intersection between the back, sides and chassis is constructed to avoid the possibility of collecting contamination and bacteria.

Abstract: A dishwasher door includes a molded plastic control console and a molded plastic inner door that are secured to and interlocked on a metal frame to provide torsional rigidity and strength in the upper portion of the dishwasher door. The resultant torsional rigidity and strength in the upper portion of the dishwasher door improves the perceived quality of the door when open and ensures proper registration of the dishwasher door latch when the dishwasher door is closed. The console includes an integrally molded boss configured to receive and latch with an integrally molded projection of the inner door, thereby maintaining the console and inner door in an interlocked relationship. The console also includes a pair of spaced-apart resilient locking tabs for retaining the console in secure engagement with the metal frame.

Abstract: A vertically disposed article support for dishes, glasses, cups and other eating utensils is provided and includes vertically spaced article support portions from which articles to be gravity drained of rinse water and to be air dried may be supported. The lower portion of the article support defines an upwardly opening catch basin or trough for receiving rinse water drained from articles supported from the support and the catch basin includes a gravity drain outlet equipped with a flexible drain tube whereby the article support may be positioned adjacent a kitchen sink and drain water collected thereby directly into the sink, the article support occupying a relatively small counter plan area adjacent the sink.

Abstract: A reversible side outlet washing machine box for being mounted between two adjacent studs in a wall and for allowing first and second water supply lines and a drain line to be coupled to the first and second water hoses and drain hose, respectively, of a washing machine. The box includes a first side wall; a second side wall; and a base member having a first and a second end; the base member extends between the first and second side walls and is reversible to allow either the first or second end thereof to be attached to either the first or second side wall; the first water supply line and the first water hose being attachable to the base member adjacent the first end thereof, the second water supply line and the second water hose being attachable to the base member intermediate the first and second ends thereof, the drain line and the drain hose being attachable to the base member adjacent the second end thereof.

Abstract: A security housing for storing and preventing the theft of elongated objects such as a windsurfer and its accessories is provided. The housing includes at least one compartment that is partially open at the top so that a portion of the windsurfer passes therethrough. The compartment has two vertical walls in intersecting planes, and a door and a lock that are controlled by a coin-operated apparatus.The windsurfer and its accessories are prevented from being removed by: a top wall having an oblong opening whose length is less than the width of an accessory, such as a wishbone; a ring attached to one vertical wall that holds an accessory, such as a wishbone, in the compartment; and a tie that is extended transversely across the keel shaft of the windsurfer to hold the windsurfer in the compartment.The compartment may be in the shape of a trapezoid or a triangle in cross-section. A plurality of compartments may be attached adjacent to one another in either a linear or circular configuration.

Abstract: The present invention relates to an apparatus for drying hanger mounted clothes, comprising a hanger rod mounted above a drip pan element, where said rod and drip pan assembly may be slidably removed from a drying cabinet so that wet clothing articles may be easily mounted on the hanger rod. In another aspect, the present invention relates to an improved clothing hanger having at least one clothing clip adapted so as to retain an article of clothing to prohibit said article from being removed from said hanger during operations, where said clothing clip may be attached to said hanger by an extension wire. In another aspect, an automatic control is provided so that the drying cycle may be preselected so as to achieve the most efficient drying of the clothing articles.

Abstract: A washing machine outlet box of the type capable of fitting within a wall and attaching to wall studs within this wall is improved by incorporating during the manufacture of said washing machine outlet box a disc as an integral part of the bottom wall, with the disc located over the future drain opening. The disc is attached to the bottom wall by a breakable or severable ring. After installation of the washing machine outlet box to an appropriate drain pipe, the disc serves as a plug for pressure testing of the drain pipe and further serves as a dam to prevent introduction of foreign material into the drain pipe during construction stages of the wall and the like. Upon completion of pressure testing and after completion of construction, a tab attaching to the disc is lifted upwardly so as to sever the ring attaching the disc to the wall to free the disc to form the drain opening in the bottom wall of the washing machine outlet box.

Abstract: The present invention relates to a device for storage of shoes and the like on a shelf. The shelf comprises a number of shelvings positioned on top of each other for the support of the shoes and a back part. The device comprises a rear edge portion of each shelving. The rear edge portions allow passage of removed particles from the shoes like sand, dirt melt water and the like. A chute is positioned between the back part and the rear edge portion and extends from the uppermost shelving and past the lowermost shelving. The chute allows the removed particles to fall downwards. A container is provided for collecting downfalling particles and is positioned below the chute.

Abstract: A weatherproof structure for a double-door closing of an unobstructed door opening has an uninterrupted, continuous, gutter along the top of the door opening. The continuous channel or gutter has an open side facing outwards with the open side having a low wall. A channel at the inner edge of a first door has an open side facing outward, the channel extending inward from the outer surface of the door, the door also having an inturned upper edge. A second door has an inturned upper edge and inner edge, the inturned inner edge entering the channel at the inner edge of the first door. A recess extends into the channel at the inner edge of the first door, from an inner surface, the recess admitting the low wall of the continuous gutter or channel. A slot in the inturned inner edge of the second door fits over the recess in the channel at the inner edge of the first door. Gaskets can be provided to enhance sealing. The structure can be repeated for the bottom of the door opening.

Abstract: This invention relates to a kitchen furnishings wherein a storage cabinet is arranged in an eye-level space above a work top with a sink laterally of the work top, which storage cabinet is provided with front and rear rack assemblies slidable from within the cabinet to above the work top adjacent the sink, a drain tray being provided within the cabinet for catching water drops from items placed on the rack assemblies to dry.

Abstract: A container adapted to be secured to the wall of a bathroom vanity or in a comparable location in a house adjacent to a water supply source. A fire hose has one end connected within the container to plumbing couplings for the supply of water. The fire hose is mounted for easy removal by stringing it through a series of closed rings having diameters substantially greater than the diameter of the hose when filled with water. The hose is accordion folded with the rings positioned at successive loops along one side of the accordion fold. A rod extends through the successive rings and is pivotally supported at one end within the container so that the rod may be pivoted outwardly of the container and the hose pulled from the rod.

Abstract: A bottled chemical handling system having an outer protective housing for supporting an inner shelving and containment module. The inner containment module is provided with a series of bottle shelves arranged at compound angles with respect to horizontal so as to prevent rolling motion of bottles stored on the shelves and to enable any spilled liquid to drain to the rear of the inner module and then down into a sump region at the lower back portion of the inner module. A drain vent interconnects the sump region within the module to the outside of the protective housing, while a fume vent provides a fluid path from the module interior to ambient.The system is provided with castors and a locking foot to facilitate transportation of the system between locations and to stabilize the system when in place.A wide variety of bottle sizes can be stored in the inner module on the angled shelves or on an additional bottom shelf.

Abstract: An oil spout container is described. The container receives and holds an oil spout and provides for drainage from the container of oil dripping from the spout. Drained oil is accumulated; a cap is provided for the container to prevent dirt from contaminating the accumulated oil and the stored spout.

Abstract: A silicone milk bath unit for coating surgical instruments with silicone includes a sink where the instruments are submerged in a silicone solution, and a cabinet for drying the instruments. The drying cabinet is divided into a plurality of compartments one above the other, each having a track for slidably receiving an instrument tray containing the silicone coated instruments. A drip tray is disposed beneath each instrument tray and collects the excess solution that drips from the instruments. The drip tray is inclined downwardly toward the rear of the cabinet and is positioned so that liquid dripping from its rear edge avoids falling onto the instruments located in the lower compartments, but instead falls down to the bottom of the cabinet for disposal.

Abstract: A soap holder comprises a tray-like member for holding a bar of soap. Below the tray-like member there is disposed an actuatable member which is connected to a member for causing the soap to be discharged from the tray-like member into the palm of a user's hand when the actuatable member is actuated. Thus the user does not have to pick up the soap with his fingers and therefore the likelihood of soap becoming embedded under his nails is lessened.

Abstract: A sanitary waste grease and fat disposal system and apparatus includes a novel sanitary storage unit for storage and handling of waste fatty materials, a tank truck for transportation of such materials, and equipment for transferring the stored materials to the truck for transportation to a fatty material processing plant. The sanitary storage unit is an enclosed storage bin of sealed, sanitary construction with a top opening for introduction of fatty materials and a bottom, valved outlet for connection to a hose for pumping to a tank truck for transportation. The top of the storage unit has a spring loaded lid which opens by operation of a pedal and has an interior wall with a strainer for trapping larger contaminating materials from the fatty materials being collected. The contents is kept fluid by a thermostatically controlled heating element in the bottom of the storage unit.

Abstract: A dishwasher tube and frame assembly incorporating an integrally molded plastic tub is provided which employs a very narrow metal collar or main support frame formed from a continuous metal member of U-shaped cross section configured as an inverted U having a base and legs extending downwardly for mounting on the supporting surface or floor; a rigid front cross member; and a pair of rear support members. The main frame surrounds the top and sides of the tub adjacent the front opening of the tub. The rigid front cross member is secured to the legs and extends beneath the front opening of the tub providing vertical support for the tub and enhancing the lateral rigidity of the main support frame.Rear support is provided by the rear support members, each of which extends rearwardly from respective ends of the main support frame legs generally parallel to the supporting surface, and terminates in an upwardly extending portion which supportingly engages the tub bottom.

Abstract: A precious metal filings collection box for use by jewelers or other tradesmen is disclosed which provides a pilfer-proof system for collection of precious metal filings which fall from jewelry or other articles as they are worked. The collection box is shown as being part of a jeweler's bench pan and is formed of a box-like unit having a screen mesh top through which the filings fall, but the openings of the screen are too small to permit the jeweler's hand or finger to pass therethrough. A locked bottom drawer which collects the filings is provided to prevent unauthorized removal of the precious metal filings.

Abstract: A one-piece plastic dishwasher tub assembly which comprises a front-loading tub, a multi-rib frame, and base. The rib frame is integrally formed about the opening to the tub and the base is a box-like structure integrally formed on the bottom whereby the rigidity and cross-sectional shape of the tub are maintained.

Abstract: An enclosure for multiple utility meter such as normally are installed at the rear of commercial buildings including modular sections partitioned by panels in the front thereof, said panels overlapping so that a wrap-around structure is provided to prevent the entry of water or like substances therein.

Abstract: A dishwashing apparatus including a washing chamber having an access door. An air inlet is located in the bottom wall of the washing chamber and includes a motor driven blower for forcing ambient-temperature air into the washing chamber. The air is directed over a heating element to pick up heat, rises through the dishes and flows out of the washing chamber through a vent in the access door. Valves are located in the air inlet and in the vent which are sequentially opened by the forced airflow into the washing chamber. These valves automatically gravitationally close when blower operation ceases.

Abstract: An imperforate container having an open top and including a cover is provided with an attachment mechanism for hanging on or in the vicinity of an outdoor barbecue. The container is adapted to contain a cleaning solution and will receive the removable grill or rack of the barbecue for soaking it clean between periods of use.

Abstract: A portable and stackable storage bin fabricated from lightweight insulating material such as polystyrene and which is rendered portable by a removable caster ring assembly in the bottom thereof. The bin has removable shelves for accommodating produce or the like and also includes a removable cover tray for the display of produce and also for the purpose of strengthening the upper portion of the bin to prevent distortion of the bin.

Abstract: An elongated hollow rear member has front and rear ends with an open front end and a top surface which extends inclinedly downward from its rear end to its front end. An elongated hollow middle member has front and rear ends with an open front end and a top surface which extends inclinedly downward from its rear end to its front end, the maximum height of the top surface of the middle member being less than the minimum height of the top surface of the rear member. A first device cooperates with the rear and middle members to establish a slideable interconnection therebetween. The first device has an extended position at which the rear end of the middle member is disposed adjacent but in front of the front end of the rear member and has a withdrawn position at which the rear end and of at least a substantial adjacent portion of the middle member is disposed within the front end and a substantial adjacent portion of the rear member.