Abstract: A stapler comprised of a base body having an anvil at one end, a staple holder having a slot at one end in the vicinity of an end wall and a staple block consisting of many staples positioned between said wall and a pushing spring, a pushing body having a staple pushing plate at one end for extruding staples one by one through said slot, the other ends of said base body and staple holder being connected by a connecting shaft so that said holder may be positioned between said bodies, the end of the staple holder being detachably connected to the shaft. The base body may also be connected to the pushing body through a resilient connecting part material so as to form a splay mouth, with the return spring being formed integrally on the base body and/or pushing body and a projection provided to contact the top of said integral spring. A guide member may be provided on an upper bottom face of the holder, with the outer face of the guide member constructed to guide a staple block.

Abstract: An auxiliary locking mechanism for a bag or a case especially an attache case, a cupboard etc. having a rigid body and lid for opening and closing the body. The auxiliary locking mechanism provided restricts or limits the opening of the lid at a position particularly when the case is vertical so as to prevent spilling of articles contained in the case due to inadvertent opening of the lid. However, the auxiliary locking mechanism releases the lid when the case is in the horizontal position to allow the lid to open completely.

Abstract: An automatic locking mechanism for a case in which a container having an inclined surface and a ball is mounted along one side of the case and hooks are mounted on the other opposing side. The hooks engage an opening in the container when the two sides of the container are brought together. The hooks also have an inclined surface matching the inclined surface in the container to allow the ball to roll along the inclined surface to a position wedged between the hooks and container when the case is in a vertical position. Laying the case flat or horizontally causes the ball to roll along the inclined surface away from the hooks thereby releasing and unlocking the case.

Abstract: Chain forming dies having inner surfaces shaped to form a desired number of linked chain elements. The dies are adapted to close against one another and a casting gate to each chain element forming section is provided. The connection for the chain elements are formed by a die insert inserted in a groove between each chain element forming section. The die insert simultaneously forms holes on extrusions of each chain element and axial posts on the mating end of each adjacent chain forming element. Means are provided to position the die insert when the chain forming dies are closed against each other. Mating coupler elements are formed by coupler-shaped sections in the chain forming dies.

Abstract: A mechanical pencil comprising a lead feed mechanism built within the body thereof and a lead guide connected to the lead feed mechanism and having a cartridge reception bore of a diameter which is practically the same as the inside diameter of the body, wherein a cartridge containing a plurality of leads and having an outside diameter which is practically the same as the inside diameter of the body and the inside diameter of the cartridge reception bore of the lead guide is detachably fitted in the cartridge reception bore of the lead guide. In replenishing the mechanical pencil with leads, an old cartridge is replaced with a new cartridge.

Abstract: A propelling pencil comprising an outer cylinder made of synthetic resin which can be easily molded as a unitary structure and an engaging member incorporating a chuck device including a lead propelling mechanism, the engaging member being detachably inserted into the outer cylinder from the rear side thereof, and thereby providing excellent appearance and light-touching operation.

Abstract: An extruding device for dispensing the contents of a tube container by compressing the container between bottom and top members. The top member is hingedly connected to the bottom member at one end and closes over and latches at the other end. The bottom and top members form a pair of in-line openings along opposite sides for receiving a tube container. A pivotally mounted locking lever is provided in the top member and may be pressed down against the bottom member to lock the tube container in the extruding device.

Abstract: A bellows which is made up of a plurality of coaxially joined bellows elements each having a plurality of n parallelogram-shaped wall elements of thin plate material joined together and positioned around a common center axis. The upper and lower edges of the thus joined wall elements define spaced parallel congruent planar orthopolygonal shapes each having n sides, n being equal to or greater than 3. Each of the orthopolygonal shapes in angularly offset in a direction around the central axis from the next adjacent orthopolygonal shape. The wall elements each have a fold line between the diagonally opposite vertexes which are the farthest apart. The bellows can have a further bellows with an axial cross-sectional shape in the form of waves joined coaxially thereto.