Abstract: This disclosure is directed to product merchandising systems that and designed to prevent brute force attempts to steal a product on display. The merchandising systems include security features that enhances the strength of the connection between a puck assembly and a base assembly and between the base assembly and a display surface. The merchandising systems are suited for withstanding brute force pulling attacks on the puck assembly and the base assembly.

Abstract: The device is designed for sewing buttons (28) using common household sewing machines. To simplify button sewing with household sewing machines, the invention proposes a button-sewing foot (10) which can be snapped into the pressure-foot holder (14) of the sewing machine. By means of retaining elements (26, 30) the button (28) can be pressed against the button-sewing foot (10) in such fashion that, independent of the position of the latter, the needle of the sewing machine can be aligned with a given button perforation (32).

Abstract: The device is designed for sewing buttons (28) using common household sewing machines. To simplify button sewing with household sewing machines, the invention proposes a button-sewing foot (10) which can be snapped into the pressure-foot holder (14) of the sewing machine. By means of retaining elements (26, 30) the button (28) can be pressed against the button-sewing foot (10) in such fashion that, independent of the position of the latter, the needle of the sewing machine can be aligned with a given button perforation (32).

Abstract: In order to arrange molded parts such as bumpers or their trim for automotive vehicles with maximum integration into the body, i.e. in order to attain a most extensively contour-hugging transition from the sheet-metal to the plastic geometry of the vehicles, the juncture between the topside of the molded part and the body panel located thereabove must be kept as narrow as possible. For this purpose, a guide rail to be attached to the body panel of the vehicle is provided which has an elongated slot formed between two webs. The molded part is inserted with a sliding seat with its strip-shaped projection into the elongated slot. The thickness of the top web determines the dimension of the juncture, i.e. the web serves as a spacer.

Abstract: An oil-less gas compressor comprises at least one cylinder block mounted on a crankcase, the outer end of the cylinder block being closed by a cylinder head. A piston in the cylinder block bore is reciprocated by a motor-driven crankshaft in the crankcase. The cylinder blocks and cylinder heads are generally square in cross section. On all four sides of the cylinder block and cylinder head there are spaced cooling fins which extend in an axial direction. Axially extending cooling air passages between the fins communicated at their lower ends with the interior of the crankcase. Air drawn into the crankcase by a fan on the crank shaft flows into and through these cooling air passages to cool the cylinder block and head. In one corner portion of the cylinder block and head there is an integral axially extending suction bore containing a filter. In an adjacent corner portion of the cylinder block there is an axially extending compressed air bore.

Abstract: In a torque transmitting coupling between a cylindrical shaft and a female member having a bore to receive the shaft, the shaft has a secant face and the female member has a connecting bolt bore which intersects the shaft bore and faces the secant face of the shaft. A connecting bolt in the bolt bore of the female member has a secant face which tightly engages the secant face of the shaft. In one embodiment, the shaft axis, secant faces of the shaft and bolt and the bolt bore are all parallel. In another embodiment the axis of the bolt bore is inclined at a small angle to the secant face, the bolt being of wedge form. A screw extending through a hole in the female member and screwed into a tapped hole in the bolt is rotatable to move the bolt axially and thereby wedge the secant face of the bolt against the secant face of the shaft. The secant faces of the shaft and bolt may have intermeshing longitudinally extending serrations.