A method of depositing a coiled member and, optionally, a membrane in a conduit in contact with the walls of the conduit involves placement of the coiled member in the conduit in a longitudinally expanded condition and releasing the force on the coiled member to cause it to contract and expand against the walls of the conduit.

Radiation detectors measuring gamma radiation from radioactive accumulations in an incinerator through low density refractory windows therein for burning combustible, contaminated wastes from nuclear fuel manufacturing activities.

The invention relates to improvements in securing a liner within a flexible container such as an intermediate bulk container. The container has a plurality of first attachment members in the form of connecting ring and mounting straps therefor attached to the exterior of the container adjacent the upper and lower peripheries thereof. The liner has corresponding second attachment members at the top and bottom thereof. Each bottom liner attachment member includes a strap which can pass through a c...

In the printer disclosed herein, shifting of a multi-color ribbon carried on a movable carriage is effected by differentially adjusting the free length of a cable extending parallel to the carriage motion. The cable passes over at least a pair of pulleys on the carriage, at least one of the pulleys being movable with respect to the other in response to changes in the free length of the cable. Solenoids are provided at each end of the cable for controllably changing the free length of the cable, ...

A method of captivating a substrate within a holder for photolithographic processing is shown. A substrate is placed within the aperture of a holder and is sandwiched into place by laminating it with layers of dry film photopolymer resist. Portions of the photopolymer resist are polymerized. Unpolymerized portions are washed away leaving retaining tabs of polymerized resist which hold the substrate within the holder for an etching or plating process.

This specification discloses an indicator device within the viewfinder of a camera for indicating a predetermined range substantially centrally of the viewfinder field frame. The indicator device comprises at least one electro-optical element for indicating the predetermined range, the optical characteristic of the electro-optical element being variable by an electrical signal information, an information circuit for putting out photographing information, and a control circuit for producing an el...

A retaining means for a lamp within a luminaire provides structural support and positive positioning. It comprises a resilient wire formed to a four-sided parallelogram shape with four outboard reverting projections between segments. One pair of diametrically opposed projections encircle bolts which hold the retainer transversely to the lamp axis at the rim of the socket compartment. Another pair of projections are unrestrained and provide extra flexibility in accommodating to variations in lamp...

A method for ventilating spacious public rooms, workshops, industrial halls and the like spaces wherein ventilating medium is supplied in large quantity at low velocity and is circulated within the space by high-velocity jets positioned in series and preferably adjustable to circulate the ventilating medium into the areas of the space which require ventilation. The jets inject only a small quantity of medium which may be separately conditioned or fed from a separate supply. The method is particu...

A gas generator for filling receptacles comprising a sealed, deformable envelope submerged in a liquid in which envelope is placed a product that reacts with the liquid to produce a gas, and means to tear the envelope at the required time, e.g. by an explosive charge in the envelope fired from a distance. This device can be used to expel water contained in ballast tanks of submarines, or to inflate inflation balloons, atmospheric balloons, or the like.

An apparatus for driving devices such as pigs, alignment clamps and mandrels through the inside of a pipe having a pair of counter-rotating drive members with wheels attached thereto at angles, whereby rotation of the drive members produces a driving force to move the apparatus and device through the pipe. The drive wheels are spring loaded for constant and effective engagement with the interior walls of the pipe, and the angle of said wheels can be preset at one of a plurality of angles.