Abstract: The invention provides a device for securing the upper terminal position of a liftable and lowerable object, comprising cable means having a hoist-side end and an object-side end; a stationary bracket having an aperture disposed in a substantially horizontal plane; a housing supported by the object-side end of the cable means and carrying the object, the housing having a lower portion and an upper portion, at least the upper portion being configured to pass through the aperture, a first opening at the top of the upper portion and a second opening at the bottom of the lower portion facilitating the passage of the cable means through the housing, and two oppositely located, elongated slots extending along at least parts of the upper portion; lever means located inside, and extending through a substantial portion of, the housing, the lever means being pivotably mounted in the lower portion of the housing and being provided with catch means and camming means, the lever means having a first limit position in which

Abstract: The invention provides a device for securing the upper terminal position of a liftable and lowerable object, comprising cable means having a hoist-side end and an object-side end; a stationary bracket having an aperture disposed in a substantially horizontal plane; a housing supported by the object-side end of the cable means and carrying the object, the housing having a lower portion and an upper portion, at least the upper portion being configured to pass through the aperture, a first opening at the top of the upper portion and a second opening at the bottom of the lower portion facilitating the passage of the cable means through the housing, and two oppositely located, elongated slots extending along at least parts of the upper portion; lever means located inside, and extending through a substantial portion of, the housing, the lever means being pivotably mounted in the lower portion of the housing and being provided with catch means and camming means, the lever means having a first limit position in which

Abstract: The invention provides a device for securing the upper terminal position of a liftable and lowerable object, comprising cable means having a hoist-side end and an object-side end; a stationary bracket having an aperture disposed in a substantially horizontal plane; a housing supported by the object-side end of the cable means and carrying the object, the housing having a lower portion and an upper portion, at least the upper portion being configured to pass through the aperture, a first opening at the top of the upper portion and a second opening at the bottom of the lower portion facilitating the passage of the cable means through the housing, and two oppositely located, elongated slots extending along at least parts of the upper portion; lever means located inside, and extending through a substantial portion of, the housing, the lever means being pivotably mounted in the lower portion of the housing and being provided with catch means and camming means, the lever means having a first limit position in which

Abstract: A space partition having an inner volume for accommodating electrical wires and the like, and providing convenient access thereto. The space partition is generally formed by a framework having a pair of vertical members with a cross member connecting therebetween. The cross member includes a pair of connectors, each engaging one of the vertical members, and a linking element connecting the connectors to each other, the linking element including a pair of parallel rods. Features are provided for facilitating temporary removal of panels and covers of the space partition, thereby enabling easy access to the inner volume of the space partition.

Abstract: A framework for a space partition of the type used in dividing up an open space into individual offices which can be easily made of any desirable dimensions. The framework is made up of a pair of vertical members and a cross member connecting the vertical members. The cross member is, in turn, made up of a pair of connectors, each of which can engage one of the vertical members and which are connected to each other by a rod which is cut to a precise length so as to create a framework of a desired size.

Abstract: A lifting device for cradle supported goods includes cradle engaging lifting arms pivoted to a wheeled chassis. A lever element located between one of the lift arms and the chassis is positioned by a winch and cable to raise the lift arms. An emergency stop block is provided in the event of cable breakage.

Abstract: A drip irrigation emitter is located in the wall (IV) of a flexible irrigation pipe. It contains a flow control chamber (15) which communicates with the pipe interior through a filter (II) and with the outside through an outlet passage (17) extending radially through the top portion (11). The chamber (15) is formed by two parallel side walls (20, 20'), a ribbed rear wall (22), and an arched front wall (21) which is incised along its center by a deep channel (23') merging with the arched portion (21) in the shape of two sloping banks (23"). The channel (23') merges at its upper end with the outlet passage (17). Control of the water outflow is made by a thin, rectangular and resilient plate (III) which fits and moves freely between the side walls and is pressed onto the arched front wall (21) by water pressure. Increasing pressure gradually urges the plate onto the banks (23") and into the channel (23'), thereby diminishing the throughflow cross-section and increasing flow resistance.

Abstract: Lifting apparatus and a wheeled vehicle upon which it can be mounted. There is provided in accordance with an embodiment of the present invention lifting apparatus comprising a scissors mechanism including scissor arms having formed thereon a curved cam path, a cam disposed between the scissor arms for engagement therewith and selectable separation thereof for producing lifting motion thereof, a load support mounted onto the scissor arms and apparatus for selectably tilting the load support with respect to the scissors mechanism.