Abstract: A tolerance ring is provided having a plurality of corrugations of different heights to provide different available spring rates even if one or more of the corrugations of one height is crushed. The corrugations of different heights can be in a single row or in a plurality of rows.

Abstract: A flexible mounting for thermocouples for vacuum electric furnaces is described, which is particularly suitable for furnaces for nitrided or carburized case formation to avoid line of sight metallic deposition on the mounting from sputtering in the furnace and which could result in shorting, spaced shields being provided on the thermocouple mounting for this purpose.

Abstract: A ramp and ramp carrier for trucks and the like is disclosed in which the truck body is provided with long rails comprising I-beams which carry the cross members and truck floor, the long rails being adapted to be supported by and secured to the spaced parallel truck frame rails in a conventional manner, the ramp being pivotally connected to a carriage which is supported by a trolley movable in a longitudinal track secured to the cross members of the body, the ramp and carriage being normally stored between the long rails of the truck body and being retractable for use with one end of the ramp hooked into the floor end plate and the other end resting on the ground.

Abstract: Apparatus for area measurement of elongated strips of different widths is described, which strips may be film to be treated, the strip to be measured preferably being initially delivered between driven rolls carried on parallel shafts, the strip passing over a driven roll having grooves at predetermined intervals, small freely rotatable rolls with peripheral projections such as rings thereon being provided which depress the strip into the grooves, the freely rotatable rolls being driven by engagement with the strip, the small rolls engaging actuation rolls having magnets carried therein to activate switches to generate pulses for counting by a counter to give an area indication and for other purposes, or the small rolls directly moving magnets for switch activation. The actuation rolls are preferably counterbalanced to reduce undesired unbalance.

Abstract: Burner heads for incinerating waste combustible gas from refineries and the like are disclosed, for use in flare gas burners wherein a plurality of waste gas burner heads are provided for simultaneous operation at the same level, which heads may be utilized in a ground flare, or utilized in an elevated version of a ground flare burner. The burner heads provide for efficient admixture of gas with air, do not plug up, have a low pressure drop, burn both low and high BTU gases, and provide for smokeless combustion.

Abstract: A ground flare stack is described having a plurality of stages for combustion to accommodate various quantities of combustible waste gas, the stack having a dished base of gravel with a central combustion chamber with an enlarged opening at the bottom for entrance of air to support combustion, the central combustion chamber having an enlargement at its upper end with a converging discharge, a plurality of stages of combustion being provided within the chamber, the central combustion chamber being surrounded by a stack in spaced relation with a converging portion disposed around the combustion chamber enlargement and a cylindrical stack thereabove, with a diode to prevent downflow through the cylindrical stack, an acoustical and wind shielding fence being around the bottom of the stack permitting air to be supplied to the bottom of the stack and of the combustion chamber, additional stages of combustion being provided outwardly of the upper end of the central combustion chamber.

Abstract: Conveyor apparatus for processing photographic materials is disclosed and more specifically equipment for turnaround during processing of an elongated web of photographic material at the midportion of a processing operation, a plurality of parallel inner and outer driven rollers being employed to receive and direct the web for turnaround, the outer rollers being disposed at spaced locations along the outside of the turnaround path, the inner rollers also being disposed along the inside of the turnaround path and being spaced from and having their axes offset from a radial plane through the outer rollers and the center of the turnaround path, the inner and outer rollers being disposed for advancing the web without pinching of the web and free from contact with fixed guides which tend to scratch or mar the surface being processed, an improved and compact drive being provided particularly for the inner rollers.

Abstract: A wrist watch is provided for indicating time. The watch has a case, with a transparent crystal covering a dial which has the hours indicated thereon by numerals and is also provided with variously colored zones between the numerals to designate the time by colors as well as by number.A rotary dial is provided for indicating the hour with a cut out and a stamped arrow which permits color to be viewed for the designated hour with the arrow pointing to the numeral. A conventional minute hand is also provided.

Abstract: A mounting for gaseous fluid filters is disclosed particularly suited for filters of the type which include a rigid box frame within which the filter is carried, the frame having opposite faces open for entrance and exit of the gaseous fluid to be filtered, the mounting including an enclosure with supporting tracks therein for the filter frame, the filter being detachably connected at its upper end to the duct system by a flexible leakproof fabric connection and being sealed at the lower end against leakage.