Abstract: An attachment shackle has an open ring having threaded first and second end-parts arranged facing one another at the opposite ends. A rotary ferrule of tubular shape is fitted with screwing on the second end-part to close or open the space separating the two end-parts. A lock is arranged at the rear of the first end-part. The lock engages in a notch of the ferrule to perform locking in the closed position. Unlocking is performed by a manual releasing action of the lock allowing movement of the rotary ferrule to the open position.

Abstract: A vertical support ‘O’ shaped fastener clip for temporarily securing vertical supplemental support cables to horizontal main support cables within elevated work decks which are temporarily installed upon structures such as a bridge to perform work on said structure. The vertical support ‘O’ shaped fastener clip which can be installed by tightening a single bolt, is comprised of a rod bent in a general shape similar to the letter ‘C’ with a threaded means at least at one end and a hollow tube attached to the other end, a bolt inserted through the hollow tube with a coupling nut threaded onto the end of the bolt. The hollow tube, bolt and coupling nut are aligned so that the coupling nut may be threaded onto the threaded end of the bent rod to close the open side of the ‘C’ shaped rod and form a closed ‘O’ shape.

Abstract: A safety double connector comprising a curved main frame forming the shape of a capital letter “S”. A closing element joins the start of the top end of the frame with a point on its body. Another closing element goes from the other end of the frame and also ends at a point on its body. The ends of the frame end in two notches or stops. The closing elements may be folded back easily by applying slight pressure so as to open the spaces between the body of the frame and the threads so as to enable an item to enter. These closing elements return to their initial position by means of a spring so as to close the space.

Abstract: A collar stay perforating device for perforating a portion of a collar stay and a collar stay storage device for storing the perforated collar stay are provided. The collar stay perforating device comprises a base member having a punch hole and a guide to receive an end of a collar stay. A first lever member pivotally attached to the base member has a punch member that cooperates with the punch hole. A second lever member pivotally attached to the base member bears on the first lever member to bring the punch member into cooperation with the punch hole thereby perforating the collar stay. The perforated collar stay may then be stored on a collar stay storage device comprising an openable ring member having releaseably engageable arms for forming a closed loop. The ring is openable permitting one of the arms to be inserted through the perforated collar stay thereby providing ordered and compact storage of collar stays.