Abstract: The instant invention is an apparatus for introducing resilient forces into a line when the line is tensioned. The apparatus comprises a housing to form and maintain a section of line into a loop or bight portion lying generally in planes substantially parallel to the line portions exterior of the housing when the line is in a tensioned condition. The apparatus further contains a resilient member to maintain the loop or bight in a relatively large diameter condition when the line is not tensioned. The resilient member resists a lessening in diameter of the loop or bight upon tensioning of the line.

Abstract: A sling for support of the arm, comprising an elongated cloth body having a relatively wide central region and relatively narrow end regions, and further having an arm extending outwardly from adjacent the central region. The body is mounted on one shoulder and supports the opposite arm, without the need for any separate arm-containing pouch or pocket. Hook and loop fasteners are provided to secure the ends of the body to each other, and to secure the arm to the body.

Abstract: In accordance with the method, an integrating kaleidoscope and lamps combine to cause heating of a semiconductor wafer to achieve desired effects such as annealing, etc. In one form of the method, the heating of the wafer is such as to achieve rapid annealing by isothermal heating alone. In another form of the method the heating is such as to effect isothermal heating immediately followed by thermal flux heating.

Abstract: The connector hardware portion of each percussive musical instrument or accessory comprises strong, practical, rugged, and economical connector parts, one of which is a clamp adapted to grip solidly onto a tube at any desired rotated and axial position, and the other (second) of which is connected to a percussive instrument or accessory portion and is adapted to lock onto the clamp in a way that prevents both rotational and axial shifting relative thereto. The locking is effected in a readily removable manner, as by means including a set screw, and the relationship is such that there can be only one position of the other (second) part relative to the clamp after locking has occurred. Therefore, once the clamp is initially set at a desired rotated and axial position, there is an automatic rotational and axial "indexing" which permits any number of separations and re-connections of the two parts (and of the percussive instrument or accessory) without permitting the locked positions to change.

Abstract: A "do it yourself" burglar-resident safe is provided at extremely low cost. The present apparatus and method make it possible and practical for almost any person, even a person having a low degree of manual skill and even a low intelligence, to construct his or her own safe with precision.In a preferred embodiment, a plastic liner is precision saw-cut or molded at the factory to provide various slots or grooves adapted to receive the inner edge portions of steel bars having predetermined sizes. The customer purchases the liner and bars in unassembled condition, together with a bottom, a firecap mold, and a strong steel door with associated lock. At any desired region of his home, the customer provides form means sufficiently large to receive the liner and having as much capacity as the customer wishes.

Abstract: An economical and commercially practical reverse-osmosis water purifier system which has no back pressure acting against the semipermeable membrane, so that the filtering rate is maximized. Furthermore, the supply of tap water to the system is shut off automatically as soon as the pure water storage tank is full, use of water thus being greatly reduced. These, and other major advantages, are achieved despite the fact that there is only a single tube extending to the faucet, automatic ice-maker, refrigerated drinking fountain or other point of use.The system uses rugged, long-lasting and economical diaphragm valves, which eliminates the need for sliding seals. Thus, it becomes highly practical to injection-mold the valves of plastic.The long-standing major problem of plugging or fouling of the constricted outlet for waste water is eliminated at low cost and with very little use of water. What water is used provides not only cleaning of the constriction region but also a partial flushing of the filter membrane.

Abstract: A highly stable noninductive film-type cylindrical resistor which can be economically mass-produced, with few rejects, even when the film is one having a very high resistance. This is accomplished by providing, in a silk-screened serpentine film pattern, parallel rows of bend or base regions which are on opposite sides of a longitudinal gap, and which are very wide in comparison to the remainder of the pattern. The exterior of the film is then lapped, until the resistance increases to a desired value, by effecting relative rotation between the resistor and a flexible lapping tape having a desired tension. For high-value resistors, the resistive film is caused to have a value (in ohms per square) higher than would be practical if the lapped bends were not relatively wide.

Abstract: A unique "compass" device for drawing and measuring circles, and employing a template with a center pin and many holes. Indicia are provided on the template to indicate concentric and generally annular zones centered at a certain center, each such zone having its boundary relatively adjacent the center located a first distance from the center (on the particular distance scale employed on the compass), and also having its boundary relatively remote from the center located a second and higher distance from the center on such distance scale. The holes lie along an Archimedes spiral centered at the center, and all holes located a first perdetermined fraction of each whole number (of the particular distance scale) are disposed along one radial line extending from the center; all the holes located a second and next-higher predetermined fraction of each whole number of the particular distance scale are disposed along a second radial line, etc.

Abstract: The synthetic resin ratchet winch has separate pawl plates which are easily and economically mass-producible, and which may be quickly replaced if broken. Each pawl plate comprises at least one pawl and an associated body. It is held against rotation, relative to an adjacent cap or base, by upper or lower bosses. The post for the drum is not formed integrally with the synthetic resin base, being instead inserted therein after molding. The bottom portion of the post is integral with an outwardly-extending flange or protuberant region.

Abstract: The present method and apparatus are believed to be the first to achieve, at least in a practical manner susceptible of widespread use on large numbers of joints, both proper engagement and proper makeup torque between tapered threaded members such as sections of pipe in an oil well or pipeline. In accordance with one embodiment, presently preferred, gage means are employed to determine the actual hand tight plane of each tapered threaded member, and a mark is made on each such member in predetermined relationship to the hand tight plane. Such marks are then employed for field inspection of joints which have been made up to a predetermined, measured, desired makeup torque. In accordance with another embodiment, the members (for example, casing and tubing sections and collars) are made up until the marks on the collar and the pipe are at a predetermined axial distance from each other at a predetermined makeup torque or predetermined desired range of makeup torques.

Abstract: Small-diameter vitreous cylinders, for example glass tubes, are maintained under lateral (radial) compression and are precision rolled through grinding wheels, thus fully separating the cylinders into as many cylindrical components as desired. The rolling is effected by maintaining several glass cylinders in laterally-adjacent relationship between a drive roller and a pressure sheet, the latter being under very substantial tension. Thin grinder wheels extend through slots in the pressure sheet and thereby grind completely through the rolling cylinders. The drive roller and pressure sheet continue to roll the substantially separated cylinders, in precise synchronism, so that there is no breaking but instead only grinding.