Abstract: A roof structure and its components comprises a series of metal panels having flanges that interlock when the panels are laid side by side and which are subsequently tightly seamed together to convert the individual panels into an integrated roof forming membrane. The roof structure may be insulated through the use of a blanket vapor barrier and insulation under the panels preferably along with thermal blocks located over the purlins. The roof structure includes unique flexible panel mounting clips that attach the panels to the purlins in such a way as to permit the panels to expand or contract in response to temperature and pressure changes, thereby minimizing roof stressing.

Abstract: An improvement in and pertaining to cranes for stripping and/or handling cast metal ingots. The improvement is disclosed in the illustrative environment of a crane capable of performing both functions and operations with big-end-down ingots and molds. The improvement is embodied in a horizontally disposed component of a vertical, crane-suspended, ingot working mechanism. Said component serves as a shock absorber and dampener during a stripping operation, and serves as a resilient energy reservoir in aid of an ingot handling operation. Said component takes a horizontal drum-shaped form with centrally apertured, resilient, spring tempered steel discs disposed like the heads of a drum normal to said mechanism wherein, however, the inner peripheries of said apertures engage parts of the mechanism between which there is relative vertical motion in one direction incident to stripping the ingot from the mold, and in the opposite direction when gripping the ingot to handle it.

Abstract: The primary components of a roof structure comprise a series of substantially identical metal panels having flanges that interlock when the panels are laid side by side and which are subsequently tightly seamed together to convert the individual panels into an integrated roof forming membrane. The interlock joints between adjacent panels are adapted for connection to flexible panel mounting clips that attach the panels to the purlins in such a way as to permit the panels to expand or contract in response to temperature and pressure changes, thereby minimizing roof stressing.

Abstract: A roof structure and its components comprises a series of metal panels having flanges that interlock when the panels are laid side by side and which are subsequently tightly seamed together to convert the individual panels into an integrated roof forming membrane. The roof structure may be insulated through the use of a blanket vapor barrier and insulation under the panels preferably along with thermal blocks located over the purlins. The roof structure includes unique flexible panel mounting clips that attach the panels to the purlins in such a way as to permit the panels to expand or contract in response to temperature and pressure changes, thereby minimizing roof stressing.

Abstract: A panel mounting clip is adapted to connect metal roof panels to roof purlins and comprises a base part that is fastened to the purlin and a flexible tab part that is resiliently and slidably connected at one end to the base and at the other end is interlocked with the seamed sidewalls of the roof panels.

Abstract: An improved upright frame element for fluid operated drop hammers which are fabricated from low carbon steel plates, slabs and forgings welded together and forming a massive, integrated weldment of multiple boxlike fabrications having strong horizontal internal and external reinforcing structures welded to the essential upstanding parts of the frame and lending strength against the several forces and components in torsion, bending, shear and against vibration to which drop hammer frames are subjected violently in normal use. All the upstanding end members and side plates are welded to and integrated with a firm horizontal base member at their lower ends and to and with a heavy horizontal top member at their upper ends. The base and top members close the uppermost and lowermost of the several boxlike fabrications with the nearest of the several horizontal reinforcing structures mentioned above.