A coupling, arranged to form a frictional joint between two mechanical elements, comprising a tubular contact member, arranged to take up a non-deformative frictional contact with an element to be attached by means of a first peripherical surface when force transforming ring having a conical contact surface is moved against a co-acting conical contact surface at the opposed peripherical surface of the contact member by means of a manually operated and linearly movable force applying member, ther...

A bowsight is provided for an archery bow including a support bracket for attachment generally parallel to the length of the archery bow. A plurality of sights are connected to and are longitudinally spaced along the support bracket. Each of the sights defines an outer longitudinal height and a smaller inner longitudinal height. The outer heights are successively smaller from sight to sight. Each of the outer longitudinal heights are positioned so that the bow will be properly aimed at a target ...

Precipitation of solids from a liquid is effected in a confined contact zone by passing the liquid downwardly through a rising stream of hot gas. A number of light weight spheres are confined within and freely movable throughout the zone. The upper and lower limits of the zone are defined by partitions each composed of a horizontal foraminous divider and an imperforate wall. The imperforate wall extends upwardly and outwardly from the divider and terminates at a wall defining the side limit of t...

The invention concerns locking means for a connection between structural components in which a projecting part for effecting locking by engaging through holes in connected components is adapted for fracturing under a predetermined loading in two stages or at two locations and in such a manner as too indicate visibly that failure of the locking means has occurred. Advantageously the locking part is of a U-shape and arranged to fracture near the roots of the limbs of that shape. The failure indica...

A coupling for pivotally releasably interconnecting a windshield wiper blade with an oscillating arm having a U-shaped end, includes a U-shaped resilient member having a base pivotally connected to the back mounting of the windshield wiper blade. A back portion of the coupling member extends from the base thereof, and a front portion is connected to the end of the back portion away from the base portion. A projection on the outer side of the back portion engages an aperture in the end of the U-s...

A coupling, arranged to form a frictional joint between two mechanical elements, comprising of a tubular contact member, arranged to take up a non-deformative frictional contact with an element to be attached by means of a first peripherical surface when a mainly plane spring ring, extending from the opposed peripherical surface mainly perpedicularly to the length axis of the element to be attached, is twisted or tilted by means of a manually operated force applying member to an inclined relatio...

A coupling arrangement to removably interconnect pipes in a well, below ground level. The coupling comprises a head with a lateral connecting branch intended to sealingly engage a seat formed on the water pipe leading to the pump. An actuating rod with an eccentric thereon is rotatably mounted on said coupling head, said eccentric is arranged, when turned in one direction by the rod to displace said coupling head laterally until the connecting branch thereon engages in said seat, and when turned...

A connection between two elements (10, 11) in furniture or the like. A straight rod (15) extends with the two end portions thereof into a bore in one element and the other, respectively. It is locked, by means of a cross-pin (24) in a transverse bore (18) in one element (10) against withdrawal from this element, and it is locked, by means of a cross-rod (20) which has a considerably greater length than the cross-dimension of the straight rod (15) and is received in a transverse bore (19) in the ...

A multiprocessor system includes two microprogrammed processors, each having a different instruction repertoire and capable of executing separate programs or portions thereof independently. Both processors share a common memory unit and communicate through established groups of memory storage locations. One processor is word-oriented and processes data using a fixed word format while the other processor is character-oriented and processes data using a variable length format. The microprogrammabl...

An apparatus such as a hot gas engine and a compressor has a rolling diaphragm seal between adjacent walls of a piston and cylinder and supported by a liquid, and has an additional piston ring seal between the diaphragm seal and gas space above, this ring seal having an operative diameter equal to the effective diameter of the diaphragm seal for maintaining constant the volume above said diaphragm seal.