An improved reel for dispensing threaded-pipe sealing tape is disclosed, wherein a tape retarding element is provided and mounted for circular movement about the periphery of the reel. The tape retarding element is mounted between the side flanges of the reel so that an applied force must be tangentially directed thereto to overcome the friction between the tape retarding element and the side flange portions between which the tape retarding element is mounted. The tape retarding element allows f...

A tray forming machine comprising an infeed station for accepting a blank of corrugated plastic, and a transfer mechanism which automatically conveys the blank along a plane into a blank receiving station between a tray forming ram and a forming tool frame. The tray forming ram moves downward along a vertical path carrying the blank through the forming tool frame, during which the blank is folded into a generally upright tray configuration by a series of vertically displaced side and end forming...

Nonblocking oil-swellable oil-insoluble synthetic resinous particle are prepared using isobornyl methacrylate as major monomer.

Stepladders having good lateral stability comprise a pair of channel members of fixed length pivoted at their top end to the side rails of the front ladder section to swing between a closed position and an extended position. The bottom ends of each channel member carries a foot member which always extends below the bottom end of the front section side rails so that the front section is supported in use of the ladder exclusively upon said foot members and not upon the bottom ends of the side rail...

Combination step, stair well and extension ladders are characterized by a single bracket member by which a bucket rack and the top rear section are pivoted to the front step section, the bucket rack is supported by telescoping channel members, spring-biased hooks are pivoted on the top rear section to make locking engagement with the top step of the ladder's front step section and snap pin units are carried by brackets on the lower rear section to interlock with holes in the sides of the top rea...

A extension ladder formed of interlocked top and bottom sections has ladder leveler means comprising a pair of sleeve members that slideably encompass the lower end of the bottom section siderails. A short flange on each sleeve member is captivated by a guide member carried on the inside of each lower siderail permitting the sleeve members to be securely retained in operative position on the bottom of the ladder without interference with the free sliding of the ladder top section along the botto...

An article of manufacture comprising a substrate in the form of a tube, sheet, plate or the like having at least on part of the surface thereof an adherent layer of solid catalytic metal and a layer of the catalytic metal in finely divided form firmly adherent to the surface of said catalytic metal. The article of manufacture is made by either forming an engineering shape from catalytic metal or coating an engineering shape with catalytic metal such as by electroplating, depositing a layer of al...

A package containing a hazardous liquid is provided. The package comprises a container which is generally impermeable to a hazardous liquid contained therein, the container being subject to discharge of its contents when subjected to impact. The container is disposed within a first jacket of a liquid permeable material of sufficient strength to contain fragments of the container on rupture thereof. A second jacket is provided over first jacket, the second jacket having at least an inner wall and...

Water containing traces of oil is cleaned by passing the oil containing water through a foraminous body, the foraminous body having a coating on the surface thereof of an oil-imbibing, oil-swellable latex polymer in a quantity sufficient to blind the foraminous body when the latex is oil swollen.

Water containing traces of oil is cleaned by passing through a porous bed containing oleophilic bodies and oil imbibing bodies. Oil is collected on the surface of the oleophilic bodies and removed from the oleophilic bodies by the oil imbibing bodies. Such beds have a high capacity for oil retention while maintaining separating efficiency.