Abstract:
The gate has an exchangeable span that is fixed to the load bearing beam and is connected with pulley bearings and rope-slings to the system of adjustable counterweights. The drive system is fitted with an electric drive with a worm-wheel mounted to the load bearing beam that travels vertically along the worm. The beam, span and the drive travel on adjustable guiderails inside a reinforced concrete pit in the direction opposite to that of counterweights. The load bearing beam is fitted with rollers and retaining rollers mounted to the cover. Emergency (manual) operation of the gate is possible by turning a crank handle connected with the worm, having released the lock that prevents the worm from rotating on its axis.
Abstract:
A smoke and heat evacuator that can be applied at an opening of a generally vertical wall of a closed environment, includes a supporting frame bearing a shutter, which oscillates between a normally closed position and an open position via at least one lateral linkage having a first arm that, in the closed position, extends obliquely, with a top end articulated to the shutter via a slider subject to the downward-thrust action of a spring and with a bottom end articulated to the supporting frame via a second lengthenable arm.
Abstract:
Steuerung für Antriebe von Toren (1) oder dergleichen mit Mitteln zur Veränderung des Drehmomentes des Antriebsmotors (3) während des Ablaufes oder des Anhebens des Tores (1), wobei das Drehmoment des Antriebsmotors (3) in Abhängigkeit vom Drehmomentbedarf des Tores (1) gesteuert wird. Damit werden eine schonende Betriebsweise und ein automatisches Stoppen an Hindernissen erreicht.
Abstract:
PURPOSE: A blind and a manufacturing method thereof are provided to easily produce a blind with improved appearance by folding, attaching and cutting a sheet of certain size. CONSTITUTION: A blind(100) is composed of unit bodies(110) which are arranged in the vertical direction. Each unit body comprises an outer sheet(113) and an inner sheet(111). The inner sheet is formed by folding both sides of a sheet in the shape of an envelope and has first vents on the front and rear ends at regular intervals. The outer sheet is formed by folding both sides of a sheet in the shape of an envelope in which the inner sheet is inserted and has second vents on the front and rear ends at regular intervals. The central portions of the inner and outer sheets in each unit are attached together, and the central portions of the outer sheets of adjacent unit bodies are attached together.
Abstract:
A fireproof screen shutter for an elevator is provided to form an emergency exit in a fire, and to cut off a fire and smoke effectively. A fireproof screen shutter for an elevator comprises is formed by mounting a bottom frame(20) to spread cloth tightly to the bottom of a screen cloth(10) wound on the ceiling of an elevator entrance and ascending or descending by a motor(M), forming a projecting piece to be guided without being separated to a guiderail(30) and attaching many rivets at regular intervals in the upward direction, and setting the guiderail provided with a guide space and bending grooves bent inward to the appointed length to fit a smoke-proof screen tightly to a seating surface of a seating frame(40) installed to be buried under a wall and locking with a locking device.
Abstract in simplified Chinese:一种防火门之门机机构,其包括一被致动之输入端,其经由一输入轴施加驱动力;一负载门片重量之输出端,其负载力经由一输出轴回传至一中心轴上;一离合器机构,恒常地将该中心轴与输入轴链接在一起;一煞车机构,包含一扭簧,集成在该输入端之输入轴上,该扭簧之一端承受着来自中心轴之负载力使其内径缩小而使该输入轴处在不动的状态;或当施加外力于输入端时,该扭簧之另一端以反抗门片自重并致动该扭簧内径放大,进而转动该输入轴;据此,可在火警发生时该离合器机构受控切断中心轴与输入轴之间的链接,使门片由自重落下而关门。