Abstract: An assembly for connecting together a pair of structural members disposed in end-to-end relation includes a bridging member having an irregular surface and securing devices for securing the bridging member to the structural members. Each structural member includes a bore with a complementary surface which mates with the irregular surface of the bridging member. The securing devices place the irregular surface of the bridging member in abutting relation with the complementary surfaces of the structural members.

Abstract: An enclosure for a movable furniture partition system is provided which includes an elongate housing disposed at an edge portion of a panel member. This housing contains electrical conduits and outlets or similar devices and defines a trough with a top opening and moveable side walls. A cover normally closes this opening; and a connecting assembly connects the cover with the trough. This assembly allows a user to open the side walls of the trough. It also allows a user to lift the entire cover from a position normally closing the opening to a raised position above the trough. When the user raises the cover above its closed position, he or she may also displace the cover laterally of the trough.

Abstract: A fume hood includes an elongate tubular frame member which defines an elongate chamber, an inlet to the chamber, and an outlet from it. It also includes partitions secured to the frame member. Those partitions define a work space from which the frame member receives gases through its inlet.

Abstract: A clamp particularly suitable for use in removably and adjustably suspending cabinet units from the support rails of counters and other worktops. The clamp has upper and lower jaw members joined by a generally vertical adjustment screw. Each jaw member has a bearing portion at one end that engages a similar bearing portion of the other jaw member when the two members are drawn together by the screw. At their opposite ends, the jaw members are provided with clamping ribs and, because of the greater length of the lower jaw member, the clamping rib of that member is spaced outwardly or distally beyond the clamping rib of the upper jaw member. A retention rib, engagable with the flange of a cabinet unit to be suspended from a support rail, is provided by the lower jaw member to limit forward-rearward movement of the cabinet unit without restraining lateral movement thereof when the screw is only partially tightened.

Abstract: A laboratory fume hood with at least two vertically-movable sashes and with a control in the form of a multifunctional sash lock that may be selectively positioned to allow only one sash to be opened at a time, or to permit both sashes to be opened but only partially, or to allow both sashes to be opened fully.

Abstract: An improved clamp assembly is provided which includes a main body member, at least one locking plate and connecting devices for anchoring the main body member to a supporting surface and for securing the locking plate and the main body member to the structural member. The method for installing this assembly includes: loosely connecting the structural member, the main body member and the locking plate together; adjusting the position of the structural member relative to the main body member; securing the main body member with the structural member using the connecting devices and the locking plates; using the main body member as a template to form openings in the supporting surface; and securing the main body member to the supporting surface using the connecting devices.

Abstract: A movable table is provided which includes a table top; two bench seats; a leg support assembly pivotally connected to the table top and the bench seats; four primary casters disposed below the leg support assembly and mounted to the assembly; and four auxiliary casters. The leg support assembly supports the table top and bench seats in an open and in a closed configuration; and it allows a user to place the table in these two positions. The auxiliary casters stabilize the table in the closed position when it begins to tip over. In addition, these auxiliary casters allow the primary casters to easily skip over obstacles.

Abstract: A corner post assembly particularly useful for joining vertical panels, frames, and the like, in constructing modular work stations for laboratories, offices, and industrial sites. The assembly includes a corner post tube typically having two or more (but at least one) vertically-elongated risers secured to the tube at selected angular positions thereabout. The corner post tube has a plurality of outer bearing faces which, when viewed in a horizontal cross-section of that tube, define a regular polygon in which the included angles between adjacent faces are equal and obtuse. Each vertical riser, which may be a frame component of a partition or movable wall assembly, is releasably but securely connected to the tube at three vertically and laterally spaced traction points, with the planar wall of the riser held in tight surface engagement with one of the bearing faces of the tube.

Abstract: A corner post assembly particularly useful for joining vertical panels, frames, and the like, in constructing modular work stations for laboratories, offices, and industrial sites. The assembly includes a cylindrical corner post tube typically having two or more (but at least one) vertical side members secured to the tube at selected angular positions thereabout. A pair of upper and lower end caps connect each side member to the tube and a vertical riser, which may be a frame component of a partition or movable wall assembly, is secured to each side member. The connecting elements perform multiple operations in use and are sufficiently concealed following assembly to provide a structure of smooth, attractive, and uncluttered appearance.

Abstract: A roller-equipped platform movably supported upon a tabletop having a straight, accessible rear edge, the platform including a straight depending flange received in a guide channel defined by the rear edge of the tabletop and a guide track secured to that rear edge. Stop elements at opposite ends of the track limit the extent of sideways movement of the platform upon the tabletop.

Abstract: A cantilever arm assembly and its associated structure for modular furniture systems, such as laboratory and office furniture systems, in which such cantilever support arms may be connected to slotted standards at selected elevations to support worktops, cabinet units, shelving, and the like. Each arm is rigidly joined to a vertically-elongated mounting member equipped at its upper end with a series of hooks receivable in the slots of the standard. At its lower end, the mounting member is equipped with a locking element movable between extended and retracted positions and, when extended, projects into one of the slots of the standard to secure the mounting member against upward movement that might result in unintentional unlatching of the hooks. In addition, the locking element, when extended, causes slight pivotal movement of the mounting member to force hooks of the vertical series into tight wedging engagement with the slotted standard as well as to adjust the support arm into level condition.

Abstract: A vertically-adjustable leg assembly particularly suitable for a pedestal table, the assembly having telescoping inner and outer tubes of generally rectangular cross section with the external dimensions of the inner tube being sufficiently smaller than the corresponding internal dimensions of the outer tube to define a perimetric space between them. A pair of vertically-elongated, channel-shaped bearing blocks formed of rigid polymeric material are located in the space between the two tubes and are supported by the outer tube adjacent the open end thereof. At least one of the bearing blocks is adjustably mounted and is constructed so that adjustment forces exerted at spaced points will be distributed along the length of the block. The end of the inner tube disposed within the outer tube has channel-shaped bearing shoes, also formed of rigid polymeric material, secured thereto and slidably engagable with the inner surfaces of the outer tube.

Abstract: A medical examination table having a leg and foot support assembly that may be pivoted between a raised position, where it is generally coplanar with the seat section of the table, and any of a variety of lowered positions. The assembly includes a frame pivotally connected to the seat section and a footrest extension which is capable not only of being extended and retracted in the general plane of the frame but also of being pivoted into foot-supporting positions disposed at substantially right angles to the frame. Such adjustments are accomplished without the need for attaching or detaching any components of the assembly. Should the assembly be in a generally vertical position and engage an obstruction as the table is lowered (as where the table is equipped with a power drive for raising and lowering), the support assembly will retract automatically to avoid injury that might otherwise result.

Abstract: An auxiliary air fume hood provided with an improved airflow system for controlling the passage of air through an auxiliary air housing and orienting the flow of air in front of the face of the hood. The hood is designed to capture the auxiliary air through the face of the hood when the temperature of said air is as much as 20.degree. F. higher than the room air temperature.

Abstract: A fume hood having top and rear baffle systems fixedly secured within a housing of the fume hood to provide a passage for lighter than air fumes along the top baffle and a passage for heavier than air fumes along the rear baffle. A movable damper selectively connects these passages with an exhaust of the fume hood, and this movable damper is remotely controlled from outside the fume hood adjacent the work area of the fume hood. An operator can control fume flow within the hood while the work area is closed by a sash.

Abstract: A laboratory fume hood with a horizontally slidable sash that is operatively coupled to and actuates a laterally movable damper in a manner inverse to sash movement. As the sash opens, the damper closes. Conversely, as the sash closes, the damper opens.

Abstract: A method of controlling room air flow into a horizontal sash type laboratory fume hood. The method includes laterally moving a damper across a room air vent by means of horizontal motion of the sash so that the vent opens and closes in an inverse manner to the sash.

Abstract: A laboratory fume hood with at least two vertically movable sashes that are operatively coupled together by a sash lock that prevents both of the sashes from being opened at the same time. Opening of one sash automatically flips a pivoted lock into locking engagement with the other sash. Thus, one of the sashes must be closed before the other can be opened. This prevents the excessive waste of heated or cooled room air being sucked out through the fume hood.