Abstract: A scaffolding guard rail post having hooks connected thereto for securing guard rails to the post. The post comprises a longitudinal rod and each hook comprises a longitudinal leg portion connected to the rod and an arm portion. The arm portion has a lower arcuate portion, an upper arcuate portion, a longitudinal web portion intermediate to the lower arcuate portion and the upper arcuate portion, and a longitudinal lip portion. A corner guard rail post has a pair of upper hooks connected thereto and a pair of lower hooks connected thereto. The guard rail posts are secured to a scaffolding frame during usage thereof.

Abstract: A safety device for securing a scaffold to the side of a building in order to prevent movement thereof is disclosed. Such securing of the scaffold is achieved by placing a lanyard around the rope supporting the scaffold and securing the lanyard to a stud on the side of a building through the use of a yoke.

Abstract: A net for use as an embarkation-debarkation net having spacer blocks provided integrally therewith for maintaining the plane of the net configuration spaced forwardly of a rear portion of the respective distributed spacer blocks. Securing elements are provided at less than all of the crossing positions of the longitudinal and transverse lines of the net. An improved spreader structure is provided utilizing a tubular cross member and short tubular vertical members for receiving the longitudinal lines of the net. The spacer blocks provide a self-fending action when the net is used as an embarkation-debarkation net, and provide cushioning of cargo where the net is used as a cargo net.

Abstract: A device and method for safely removing occupants of multi-story buildings under conditions of fire and catastrophe by allowing one occupant at a time to don a harness attached to the device and safely jump, with his rate of descent controlled so that he reaches the ground safely. The device has a rigid frame in which a rotatable shaft is positioned. On the shaft are mounted two drums. On each drum is wound enough cable to reach the ground from the height of installation of the device. Each drum has its cable wound in a direction of rotation opposite from that of its mate. A drag element acts on the shaft to limit the rotational velocity of the shaft, and thereby the rate of fall of the escaping occupant, to a speed which will not injure the occupant on contacting the earth. Only one user at a time will be able to occupy the apparatus since the cable end of the second cable is hidden under the first cable and is not accessible until the first cable has been completely unwound.

Abstract: A fire escape device enabling a person to escape from a multi-story building. The fire escape device of the invention comprises two sets of planetary gears which operatively interconnect a winding drum to the main shaft of a fan assembly. During operation, as the cable is unwound from the drum, the sets of planetary gears cause the shaft of the fan and correspondingly, the fan blades themselves to rotate at great speed thereby braking and hence controlling the rate at which the cable is released from the winding drum.

Abstract: A work platform for buildings having a guard rail having, at one end, a movable part pivotally mounted for movement about a horizontal axis between a working position and an upright safety position the guard rail including a mechanism carrying switch means arranged in the working position of the said movable part to be positioned to contact a member on an adjacent platform to control a circuit to stop the platform moving in a vertical direction and the movable part being controlled by said mechanism which also positions said switch means to prevent the platform passing one another when the end frame movable part is in any position except the safety position.

Abstract: In accordance with the present invention a handhold (10) is provided including a base handhold member (12) including a first fastening flange portion (16) and a longitudinally extending rod portion (14). The length of the longitudinal portion is sufficient to meet most if not all distances between fasteners utilized on railway cars and other transportation vehicles. A second handhold member (30) includes a base portion (32) having an opening 34 and an upwardly extending flange portion (40). The base portion slidingly receives the rod portion and thus enables adjustment of the distance between the flange portions. The rod portion thus may be cut at the installation site to meet desired length. In one embodiment the distance D.sub.2 of the second flange above or below the rod may be varied by utilizing a selected member having this desired distance. Also different second members may have selected distances D.sub.1 from the vehicle body.

Abstract: Improved ladders for attachment to the transoms of boats comprise a platform section that includes horizontal planking and depending tubular frame members and a ladder step section pivoted on the tubular frame members below the planking for movement between a retracted position wherein the step is raised above the planking inboard of the rear end of the platform and an extended position wherein the step is lowered below and aft of the planking. The step is structured so as to limit the extent it will lower below the planking. The new ladder design enables the platform to be free of any elements, such as brackets, etc., and for the step to be aft of the boat's propeller, rudder, etc. When the step is in the extended position to eliminate possible snagging of gear worn by the ladder user or other interference to the user of the free use of the full area of the platform or of the ladder.

Abstract: A shoring system having base frames with legs preferably of extruded aluminum in oval cross-section (for optimal support with minimal use of materials) and optionally having three T-slots formed integrally therewith and extending the length thereof (for versatility in bracing), and preferably in combination with telescoping extension frames formed of extruded aluminum and adjustably inter-connected with respective uppermost base frames by U-pins fastened through dual locating holes spaced in pairs along each extension frame leg. The dual locating holes are formed in thickened walls on either side of a central hollow core in each extension frame leg (to accommodate retraction of a jack screw mounted on the leg).

Abstract: A novel controlled descent device is disclosed which not only aids in the ascent of a human being from a lower elevation to an upper elevation but also provides for the safe descent of a human being from the upper level to the lower level. The apparatus comprises a round cable, a counterweight, a controlled descent pulley having a ratchet and pawl brake system and a conventional pulley; all operating conjunctly dependently on the position and situation of the human being. The controlled descent pulley and conventional pulley are held in a plate structure which is secured to the upper elevation. The counterweight is raised and lowered from the upper elevation to the lower elevation and vice-versa by means of a guy wire which is anchored and held in relatively taught position between said upper elevation and said lower elevation.

Abstract: A ladder attachment consisting of two triangular plates with holes and connecting rods. When connected through the rungs of a conventional extension ladder it forms a frame on the outsides of the ladder that can be adjustably extended over the ridge of a roof.The attachment allows the ladder to conform to the roof's pitch and be secured to the roof's ridge.

Abstract: A body support for use in berry picking, garden weeding and the like for supporting the weight of a person's upper torso when in a kneeling or stooping position. The support includes a ground engaging foot, an elongated support member mounted on the foot, and a chest-supporting rest mounted on the upper end of the support member.

Abstract: This invention relates to new and useful improvements in a platform for stairs, and the principal object of the invention is to provide a device which may be effectively employed as a scaffold structure for stairs, or a step-up platform to reach portions of the ceiling and the walls of a room.

Abstract: The outline of a wall hanging object is cut out of a flexible sheet of material to form a transfer blank adapted to be positioned on a wall surface and adhesively held thereon at a desired location. The hanging point on the object is located and transferred to the transfer blank by a marking tool. The hanger device for the object is nailed to the wall surface through the transfer blank at the hanging point marked thereon, after which the transfer blank is removed.

Abstract: A portable folding ladder comprising a plurality of U-shaped modules having a rung and two vertical portions, the modules movable connected to each other, and when opened becoming progressible narrower as they approach the top of the ladder, when folded the narrower modules fitting inside of the next wider modules and locking means to lock the modules in a rigid manner when the ladder is extended and open.

Abstract: A work support unit convertible between work horse and buck horse modes, the unit comprising a set of three generally horizontal cross bars, four depending legs and bracket means coupling the cross bars and legs and maintaining the same in a fixed spatial relationship. In the work horse mode, a replaceable work board is secured to cross bars to provide a working surface and in the buck horse mode the board is removed. In a knockdown condition for transport and/or storage the legs are removed from the brackets and are conveniently strapped to the cross bars.

Abstract: Combi-equipment functioning as transport cart and ladder, particularly boat-ladder, said equipment comprising a main frame (1) supported by wheels (9, 10) and a load-carrying member, said main frame comprising two elongate, substantially parallel side frame pieces (2, 3) and upper and lower end frame pieces (4, 5), joining the side frame pieces, as well as a number of transverse stays between the side frame parts.

Abstract: A levelling device for ladders has a pair of locking bars (24, 32, 51, 52) pivotally mounted on the ladder (28, 31, 42). A support arc (16, 33, 48), having feet (19, 34) at each end, passes through apertures (50) in the locking bars (24, 33, 51, 52). Springs (25, 46) interconnecting each locking bar (24, 32, 51, 52) and the ladder (28, 31, 42) urge the locking bars (24, 32, 51, 52) to an unlocked position where the support arc (16, 33, 48) is free to pass through the apertures (50). When weight is applied to the ladder (28, 31, 42), the locking bars (24, 32, 51, 52) are urged to a locked position, against the springs (25, 46), where the sides of the apertures (50) engage the support arc (16, 33, 48) to lock it against further movement. By adjustment of the support arc (16, 33, 48), the feet (19, 34) may be raised or lowered to accommodate any irregularities in the support surface so that the ladder (28, 31, 42) will stand vertically.

Abstract: A portable tree climbing device for use by a hunter or observer waiting on game and using as the case may be, a bow and arrow, gun or camera. It comprises two assemblies, a main body supporting assembly and a foot supporting assembly, each assembly having a two piece tubular frame with respective telescoping arms that cooperatively encircle the tree or pole. The main body supporting assembly has a seat and a pivotably movable seat back member adapted to be moved between a position perpendicularly adjacent the seat outwardly from the tree wherein a user may be seated on the seat facing toward the tree and a position abutting the tree spaced forwardly from and horizontally above and parallel to the seat for user seating on the seat back member facing away from the tree.

Abstract: This invention is directed to mechanical staging for use in the construction of a building.Normally, in the construction of a frame building, there is used staging and which staging is made from wood. This invention is directed to the use of mechanical supports for wooden cants and wooden planks.There is a stud gripper. The stud gripper can be placed on studs in a wall and a cant supported on the stud gripper. With two spaced apart walls and having stud grippers for supporting cants it is possible to place planks on the cants. A workman can stand on the planks and be supported for further work in the building.In conjunction with the stud gripper there can be used an adapter bracket. The adapter bracket is supported on the stud gripper. Cants can be supported on the adapter bracket. With spaced apart walls it is possible to have stud grippers and adapter brackets on the studs of the walls and to run cants between the stud grippers and the adapter brackets.