Abstract: A coupling particularly for use with colliery roadway supports. The coupling between an upright channel section or `I` beam and a crown beam of a similar cross-section is formed from two plates. At least a first of the plates is formed so as to lie between opposed flanges of the upright and opposed other of the two plates. The first plate extends beyond the head of the upright to a lip portion hooking all its width over the lower flange of the crown beam with preferably a bolt passing through the lip portion, the crown beam and opposed other plate. The clamping of the two plates together by the bolt or bolts securing the upright to the crown beam achieves a high resistance to lateral loading on the assembled beams to form a support.

Abstract: A bicycle handlebar drop stem is disclosed wherein the step is manufactured from a single piece sheet metal blank. The blank is configured by a series of dies such that it is formed into a cylindrical post having an integral neck section and handlebar receiving head. The neck and head extend downwardly at an acute angle to the cylindrical post. To accommodate this downward angulation of the neck relative to the post, the blank is notched at the interface of the neck and cylindrical post sections of the blank and depending flanges of the configured stem are welded to the cylindrical post.

Abstract: A fence connector and a method for connecting round wooden posts to round wooden rails to make a fence. The connector is a unitary sheet metal connector having a central bridge portion and a pair of connection flanges, one at each end of the bridge portion. The central bridge portion is apertured for fastening to the post or rail and the connection flanges are apertured for fastening to the other fence part (i.e. the rail or post). The connector may be preformed with its connection flanges formed into an arc about an axis parallel to the length of the connector to generally conform to the periphery of a rail or post or, in accordance with the method of the invention, the flanges may be bent around the rail or post to form the arc as the fence is being assembled.

Abstract: There is disclosed a table upright connector member or T-joint useful for joining tubular members comprising a tubular cross-member and a tubular stem member and to a process for effecting the same. The T-joint comprises a tubular segment complementary with the tubular cross-member and rigidly secured to the end of the tubular stem member and having a diameter slightly less than that of the tubular cross-member. The tubular segment is drawn up tight against the tubular cross-member by draw bolts to give a rigid structure.

Abstract: A connection coupling or socket arrangement contains two coupling parts each possessing a bore and arranged at an angle with respect to one another. In order to be able to interconnect rods or the like with one another, without the use of further components, the one coupling part serving for receiving one of the rods is continuously lengthwise slotted over the length of its bore. The end regions of this one coupling part bounding at such lengthwise or longitudinal slot each carry a respective portion or section of the other coupling part which is divided into such two portions or sections transversely with respect to its bore. These portions are subjected to the action of a resilient or spring force which strives to mutually shift both of these portions with respect to one another transversely in relation to its bore.

Abstract: A clip for telescoping shelf supports for use in anchoring shelving, such as in forming a metallic shelf framework, providing means for erecting and maintaining shelf supports without the use of screws or bolts. A base member is anchored to the outer wall of a male section of the framework, as by welding, and an anchor member is mounted on the frame at a point where the cross member is to be mounted, and is held in place by means of a tension plate, which engages the anchor member and on which are formed outwardly extending lips which receive the side margins of the base member mounted on the cross bar. The frame is composed of telescoping male and female sections having spring loaded stops adapted to extend upwardly through spaced openings in the other and adjoining member.

Abstract: A connector for affixing the top rail of a wire fabric fence to the fence posts thereof is described. The connector consists of a resilient metallic strip fabricated into a loop portion from which depend leg portions which extend inward, substantially parallel, then outward. When inserted into a fence post the connector legs enter into yielding frictional engagement with the inner walls thereof, said engagement being enhanced by the engagement of said parallel portions with one another thereby increasing the resiliency of the connector.

Abstract: A wall framing bracket for retaining alignment of a floor plate and framing stud of a stud wall at the floor level of a passageway through that stud wall. The framing bracket is of generally U-shaped configuration, the bracket's longitudinal axis being aligned with a floor plate's longitudinal axis to embrace the floor plate and a framing stud during use. The bracket is connected directly to the floor by flanges that flare outwardly from the bracket's bottom edge.

Abstract: A hand and guard rail system has a clamp member made up of two identical elements which have semi-circular sectional portions at right angles to one another. The elements co-operate in clamping so that each portion forms a tubular portion to locate a pair of tubular rail members at right angles to each other.

Abstract: A coupling for joining tubing together in the manufacture of furniture and the like comprising a pair of sleeves mounted one on the other in coplanar relation with their axes at right angle to each other and a wall mounted at the inner end of one of the sleeves with an opening in the wall for receiving a screw and the like for fastening the tubing that extends through the other sleeve.

Abstract: A connector assembly for connecting adjacent horizontal beams of a storage rack to an imperforate post substantially without permanently deforming and damaging the imperforate post. The connector assembly includes a pair of connectors that have support plates which are welded or otherwise secured to the beams and interlockingly engageable fingers that substantially prevent the connector assembly from being pulled apart when the beams are under load. A supplementary fastener connects the support plates and firmly clamps the connector assembly to the post.

Abstract: A clip for attaching printing unit guide rails to a printing apparatus guide rail support member. The clip is held to the print frame by spring tension between a spring foot and a guide rail retainer. The guide rail is held in place in the clip by spring tension between a leaf spring and the guide rail retainer.

Abstract: The tube end fixture is formed with an eye or a tongue integral with the shank of circular shape, the whole being formed as a section of an extrusion. The extrusion in a long length is cut off at intervals to form the desired fixtures. By this means it is possible to use the same alloy for the fixtures as for the tubes which is not possible when the fixtures are castings.The fixtures and tubes are welded together to form frames for staging.

Abstract: A propulsion unit for driving water craft, particularly those of the floating lounge type, is disclosed as including a fin made from a flexible material with a first end formed to define a foil into which the lower end of an oscillatory drive member projects downwardly in a fixedly secured relationship and with a second flexible fin end that extends from the foil end to provide a flapping movement through the water upon oscillation of the drive member in order to propel the water craft. Movement of the drive member through the water is facilitated by the foil shape of the first fin end which is also more rigid than the second flexible end so as to increase the moment arm about the drive member where the flexible flapping movement is concentrated. Flexible sheet plastic is preferably used to form the fin with a folding operation at a score line to define the foil shape.

Abstract: A suspension ceiling system is disclosed which includes main tee members and cross tee members which can be assembled in a variety of relationships. The main tee members are provided with similar first end connections at each end and the cross tee members are provided with similar second end connectors at each end. The main tee and cross tee members can be end connected to produce main runs consisting of alternate main tee members and cross tee members. The cross tees can also be assembled through openings provided in the webs of both types of members to produce cross runs consisting solely of cross tee members. In the illustrated embodiment the second end connectors of the cross tees can be connected in three ways. They can be connected to first end connectors of the main tees, connected through a cross tee opening without a similar second end connector extending from the other side and can be connected to a second end connector extending in the opposite direction through the same cross tee opening.

Abstract: Loading ramps for a truck having stake rack pockets are dimensioned to extend between adapters registerable with the pockets for non-use storage in a position where they function as side racks or vertical extensions thereof. The ramps are provided with a unique coupling means for engagement with the truck tail gate when in use.

Abstract: A storage rack assembly comprises laterally spaced vertical units defining a storage area therebetween and each having a base provided by a W-configured truss and three co-planar posts secured to and extending upwardly from the top of the truss. Spacers maintain the posts in fixed relationship within each vertical unit. Spreaders and shelving members extending between the vertical units are secured to sleeves which in turn are detachably secured to the posts thereof in tightly fitting engagement therewith. Each sleeve comprises a pair of interfitting sections having interfitting oppositely dispoed L-shaped fingers along the vertical edges thereof. Resiliently deformable S-configured clamping members each have offset hook portions which engage recesses in the bases of each pair of interfitting fingers to prevent inadvertent disassembly of the sleeve sections.

Abstract: A fiber reinforced, non-corrosive, non-conductive, plastic handrail system having a continuous handrail member secured to a plurality of upright posts by an improved bisectional collar. A midrail member can be secured to the posts by a second bisectional collar as a continuous segment or a linking segment. Such bisectional collars are also used in joints such as for attachment of railings adjacent stairways.

Abstract: A pipe coupler has a pair of gripping members with corresponding angularly displaced channels and planar webs. The gripping members are adapted to clasp the pipes between corresponding channels with the gripping members in a spaced apart relationship. Means are also provided for cooperation with the webs to draw the gripping members into closer spaced apart relationship so as to rigidly secure the pipes in the channels.

Abstract: An improved portable Safety Barrier may be used to prevent accidental entry into dangerous areas. According to a preferred embodiment the barrier comprises a bar means and a pair of attaching means, typically clamps, connected at the two ends of the bar means. A C-type clamp may be employed to connect the bar means to a U-shaped support or a two plate clamp means may be used to attach the bar to the point where two U-shaped struts converge in a T. The attaching means can also comprise a shackle type clamp for attachment to rounded objects or it may be a pointed tip suitable for attachment to a surface having receiving holes therein.The bar means may comprise a telescoping assembly in which one member is slideably received in the other so that the length of the assembly is adjustable to match various width passageways. Alternatively, two pipes or bars of different diameters may be attached together by a suitable diameter reducing means.