Abstract: Fire escape apparatus for egress from a multi-storied building structure from an upper level thereof is provided. The apparatus includes an elongate mesh tube, the tube being substantially longer than the structure height from which escape is required, and sufficiently long to enable extension of the tube downwardly to the ground. The building structure has permanently attached thereto a guide wire or cable extending at a desired angle from the upper level to the ground. The elongate mesh tube has affixed thereto, at spaced-apart intervals along its length, a plurality of supporting blocks-and-pulleys engaging the guide wire or cable. When escape is required, the mesh tube is deployed from the upper level to the ground, riding upon the pulleys, thereby permitting escape to ground level through the tube by persons entering the tube from the upper level.

Abstract: Fire escape apparatus for egress from a multi-storied building structure from an upper level thereof is provided. The apparatus includes an upper, supporting entry ring member detachably anchored to the structure at an exit location such as on the roof. The entry ring member has attached to it one end of an elongate mesh tube, the mesh tube being substantially longer than the structure height from which escape is required, and sufficiently long to enable extension of the tube downwardly from the exit location to the ground. The mesh tube has a lower, exit-opening support ring member attached thereto at its other end. The building structure has permanently attached thereto, adjacent the upper exit location, one end of a guide wire or cable extending from this upper location on the structure at a desired angle to the ground. The elongate mesh tube has affixed thereto, at spaced-apart intervals along its length, a plurality of supporting blocks-and-pulleys engaging and riding upon the guide wire or cable.

Abstract: Fire escape apparatus for egress from a multi-storied building structure from an upper level thereof is provided. The apparatus includes an elongate mesh tube, the tube being substantially longer than the structure height from which escape is required, and sufficiently long to enable extension of the tube downwardly to the ground. The building structure has permanently attached thereto a guide wire or cable extending at a desired angle from the upper level to the ground. The elongate mesh tube has affixed thereto, at spaced-apart intervals along its length, a plurality of supporting blocks-and-pulleys engaging the guide wire or cable. When escape is required, the mesh tube is deployed from the upper level to the ground, riding upon the pulleys, thereby permitting escape to ground level through said tube by persons entering the tube from the upper level.

Abstract: A process is disclosed for the manufacture of product compounds of the formula HC(R.sup.1).sub.2 C(R.sup.1).sub.2 C(R.sup.2).sub.2 H wherein each R.sup.1 is independently selected from the group consisting of H, F, Cl, CN, R, OR, CO.sub.2 R, C(O)R, OC(O)R, R.sup.f, OR.sup.f, CO.sub.2 R.sup.f, C(O)R.sup.f and OC(O)R.sup.f where R is a hydrocarbyl group and R.sup.f is a C.sub.1 to C.sub.10 polyfluoroalkyl group, provided that at least one R.sup.1 is F, and wherein each R.sup.2 is independently selected from the group consisting of H, F, Cl, CN, R, OR, CO.sub.2 R, C(O)R, OC(O)R, R.sup.f, OR.sup.f, CO.sub.2 R.sup.f, C(O)R.sup.f, OC(O)R.sup.f and difunctional linkages where an R.sup.2 group on each of two adjacent carbon atoms together form a link selected from the group consisting of --CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH(CH.sub.3)--, --CH.sub.2 CH(CH.sub.3)CH.sub.2 --, --C(O)OC(O)--, and norborndiyl.

Abstract: Zirconium and hafnium boride precursor complexes are prepared by deposition from solution, and yield metal borides upon heating at mild temperatures and ambient pressure.

Abstract: This invention relates to a liquid phase process for the preparation of R.sub.f CHXY by the homogeneous catalytic hydrodechlorination of R.sub.f CClXY wherein X and Y are independently H, F, Cl or R.sub.f ' provided X and Y are not both Cl, R.sub.f and R.sub.f ' are independently F, CF.sub.3, (CF.sub.2).sub.n Cl or (CF.sub.2).sub.n CF.sub.3, and n is 1-4, by reacting the R.sub.f CClXY with hydrogen while in solution with a Periodic Table Group 6-10 metal complex catalyst which contains tertiary Periodic Table Group 15 ligands without added base.

Abstract: This invention relates to a liquid phase process for the preparation of R.sub.f CHCl.sub.2 by the selective homogeneous catalytic hydrodechlorination of R.sub.f CCl.sub.3 wherein R.sub.f is F, CF.sub.3, (CF.sub.2).sub.n Cl or (CF.sub.2).sub.n CF.sub.3 by reacting the compound with hydrogen while in solution with a Periodic Table Group 8-10 metal complex catalyst which contains tertiary Periodic Table Group 15 ligands, without added base.

Abstract: This invention relates to a low-temperature process for the preparation of group III-group V semiconducting material. More particularly, in the present process at least one group III compound is reacted with at least one group V compound in an aprotic solvent to form a precursor, which is then heated to form the semiconducting material.

Abstract: A portable fire escape is provided comprising an entry support member and a mesh fire escape tube attached at one of its ends to the upper support member and at the other end to a lower exist-opening ring support member. The entry support member is affixed in the shape of a suitcase into which the mesh tube and lower exit opening support member can be placed for easy, portable transportation for use when travelling and staying in, for example, a hotel. Other components of the suitcase structure include easy opening side flaps and telescoping struts which permit rapid deployment of the fire escape chute and alignment in virtually any window configuration. The traveller who has this portable fire escape with him on his travels is assured of means of escape from his room in the event of a fire.

Abstract: A fire escape means is provided comprising a moveable cart for storing and, when needed, moving a fire escape into position for deployment out of a building, the fire escape having an upper, supporting entry ring member and a mesh tube attached to this upper support member, the mesh tube being substantially longer than the building height from which escape is necessary, and a lower, exit-opening support ring member attached to the lower end of the mesh tube. During storage, the fire escape is folded into the cart. The building is provided with at least one opening through which the fire escape is to be deployed. To the building near this opening is permanently attached a guide wire which extends from the opening at a desired angle to the ground where it is permanently affixed to a rigid support on the ground. To the lower ring support member, one end of a leash means is attached, the leash means having a snap-on mechanism removeably engageable to the guide wire attached to the other end.

Abstract: A combination fire escape tube and rescue vehicle is provided. The fire escape comprises an upper, supporting entry ring member and a mesh tube attached to this upper support member, the mesh tube being substantially longer than the building height from which escape is necessary, and a lower, exit-opening support ring member attached to the lower end of the mesh tube. The rescue vehicle has boom-like, height-adjustable apparatus, to the upper end of which is affixed a universal joint to which the supporting entry ring member is attached, thereby providing for flush alignment of the entry ring member against the wall of the building at a window or other opening at a desired height, regardless of the angle of approach of the boom to the building. The lower exit-opening support ring member can be adjustably attached to the mesh tube near the ground by ground support personnel.

Abstract: A fire escape is provided having an upper, supporting entry member and a mesh tube attached to this upper support member, the mesh tube being substantially longer than the building height from which escape is necessary, and a lower, exit-opening support member attached to the lower end of the mesh tube. The mesh openings have a maximum dimension of about two inches. In use, the maximum dimension of the upper entry member is larger than the window or other opening through which escape is necessary. In use, the lower support member and attached mesh tube are lowered to the ground through the window through which escape is to be made. The fire escape is held in place by the upper support member which cannot pass through the window. A person escapes the building by entering the upper entry support member and lowering himself to the ground safely by means of his hands engaging the mesh.