Abstract: A device for clamping a piece of formwork includes a bar having an end for attachment to a body. The device includes a jaw mounted on the bar and for receiving the piece of formwork, the jaw being movable along the bar.

Abstract: An assembly for clamping formwork boards for forming an elongate slab having a lower base and an upper shaped gutter, includes first and second posts to be disposed on opposite sides of the slab to be formed. There is a formwork board clamping device for mounting to the posts, having jaws, the jaws including a first jaw mounted to the first post for retaining a first formwork board that forms a first side of the slab, and a second jaw mounted to the second post for retaining a second formwork board the forms a second side of the slab and a second side of the gutter. The second jaw has a post mount for a third board holder. The third board holder extends from the second jaw for retaining a third formwork board to be held over the slab to be formed that forms a first side of the gutter.

Abstract: A device for clamping a piece of formwork includes a bar having an end for attachment to a body. The device includes a jaw mounted on the bar and for receiving the piece of formwork, the jaw being movable along the bar.

Abstract: A transformer including a lamination core of band iron and a magnetic screen which consists of a wound iron band arranged around the lamination core (5) and which is secured to the core by means of expansion wedges provided in the space between the core and the screen 13. The expansion wedges (7) extend transversely of or at an angle with respect to the winding direction of the wound iron band.

Abstract: A device for providing closed ring cores with windings. A coil former is rotatably arranged on at least one core leg. Between the coil former and the leg there is provided a guide member which is secured to the leg and which comprises guide paths for the coil former rotatably arranged thereon. The coil former is fixed in position after a coil is wound thereon.