Abstract: A raisable and lowerable table comprises a base, and at least one movably extensible vertical column attached to the base having a table top carried on the vertical column. Pivot means may be provided for moving the table top into any of a range of pivoted positions, preferably on both sides of the horizontal position of the table top. Motor are provided for holding the table top in any of the range of pivoted positions.

Abstract: A fume hood having a step baffle system that improves uniformity of flow under different operating conditions, increases draw along the work surface, and, in general, enhances hood performance. An intermediate baffle plate of the baffle system may be pivotally mounted and may be associated with a remote-control mechanism for adjusting its operating position. A rectangular bellmouth collar at the exhaust opening of the hood contributes in achieving a high level of hood efficiency and permits nearly vertical orientation of the fixed uppermost baffle plate, thereby providing greater work space within the upper portion of the hood chamber. Exhaust ports at the top corners of the upper baffle plate promote and control the vertical flow of gases in the upper portion of the hood chamber to aid in the evacuation of fumes from that region.

Abstract: A drafting board having a planar top surface with a peripheral depression. A thin, resilient, cover sheet is removably secured to the top surface by a pressure-sensitive adhesive and extends into the peripheral depression where it is retained by a peripheral retaining rim extending about the panel below the plane of the working surface. The parts are structurally related so that the cover sheet slopes gradually downwardly into the depression without lifting or bulging along the outer limits of the panel's top surface. Replacement of the cover sheet is achieved by removing the retaining rim, stripping away the old cover sheet, adhesively securing a replacement cover sheet, and securing its border within the depression by re-mounting the retaining rim.

Abstract: A clamp particularly suitable for use in removably suspending cabinet units from the support rails of counters and other worktops. The clamp is generally J-shaped with an upstanding stem portion, an upper arm portion, and a hook-shaped lower arm portion. The upper arm portion terminates in a rib that projects towards the lower arm portion and also includes a threaded bore which extends along a line that is generally parallel with the lower arm portion and is spaced above the rib. A screw is threadedly received within the bore and, during use of the clamp, the upper arm portion is hooked over the flange of a support rail and the screw is tightened against the rail to pivot the clamp and to force the top wall of a cabinet unit, supported by the clamp's lower arm portion, upwardly into tight engagement with the rail.

Abstract: A lock release for folding tables and shelves in which the locking mechanism to prevent accidental pivoting of the top from a horizontal unfolded position to a generally vertical folded position includes a pivotal link member with guiding edges or surfaces for slidably directing a connector element along the link as the top is folded and unfolded. Most advantageously, the lock is double-acting--that is, two distinct manipulations are required to release the locking mechanism. In a preferred embodiment, the link member has an L-shaped guide slot with an elongated main portion and a relatively short end portion. When the top is horizontal, the connector element is located within the slot's end portion and, to permit the connector element to enter the elongated main portion of the slot, the link member must be shifted about its pivotal axis by the user.

Abstract: A desk having a planar top panel of generally rectangular outline, a leg or base structure for supporting that panel, at least one support track secured to the underside of the top panel and extending longitudinally therealong, and a modular storage or support unit, such as a drawer unit, movably suspended from the track and capable of being easily clamped in any selected position therealong in accordance with the needs and preferences of a user.

Abstract: A foot control assembly for use with power-driven equipment having reversible electrically-actuated operations such as, for example, power-operated medical examination tables and chairs. The assembly includes a base housing located along a floor surface adjacent to the equipment with which it is operatively connected. A plurality of actuating members are mounted upon the housing, such members being spaced laterally apart to define at least one operating station therebetween. Each station is wide enough to receive at least the front or toe portion of an operator's foot. The actuating members are horizontally movable and are shifted by lateral contact with an operator's foot to actuate either of a pair of reversible power operations associated with each station.

Abstract: A power-operated medical examination table having safety mechanisms for preventing injury or damage should someone or something become entrapped beneath the top of the table as it descends. The table includes a pedestal base having an extendable and retractable column. The top normally rests upon a load-bearing member which may be selectively raised or lowered under power to extend or retract the column. Should the top engage an obstruction during a lowering operation so that a separation occurs between the load-bearing member and the top, a sensor detects such separation and immediately interrupts power to prevent continued retraction of said load-bearing member. The table also includes at least one power-operated outer top section that is hinged to the central top section and is supported by a second load-bearing member and power drive arranged to constitute a secondary safety mechanism.

Abstract: An improved clamp for releasably and adjustably securing accessories, such as hanger rods for parenteral solution containers, to medical tables. The clamp has a generally cylindrical body comprising two main sections arranged in axial alignment: a base section and a cup section. Annular rows of intermeshing teeth are provided along the opposing end faces of the respective sections to prevent relative rotation of those sections unless such movement is accompanied by slight axial separation. The cup section includes a chamber terminating in an enlarged end opening that rotatably receives the cylindrical shank of a first operating knob. The knob is threadedly supported upon a hollow stem which is joined at one end to the base section and which extends axially through the chamber of the cup section.