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Riser quits the institutional foods business; works out swap of warehouses with Sysco Food. (Riser Foods Inc.; Sysco Food Services of Cleveland Inc.)

Riser Foods Inc. has exited the institutional food supplies business by exchanging its Bedford Heights warehouse for the smaller Cuyahoga Heights warehouse of Sysco Food Services of Cleveland Inc. in a complicated real estate swap. "It was a real estate and business transaction that was good for

Publication: Crain's Cleveland Business

Blind risers: why they don't always work; part 1 of 3. (Cast Facts)

Blind risers have been in widespread use in the steel foundry industry since the 1940 patent by John Williams that used a sand core to provide a hole in the metal skin of a blind riser. Blind risers work on the principle of using a "firecracker" core to puncture a hole in the steel shell that sets

Publication: Modern Casting

Evaluating Riser Height Tolerances for Concrete Stairs

A procedure for measuring stairs is needed, as are data that can help to better define reasonable stair tolerances Tolerances for building construction have sometimes been set without concern for the builder's ability to meet them or the effects of an out-of-tolerance condition on the

Publication: Concrete International

Blind risers: cold necks and hot risers - part 3 of 3. (Cast Facts)

If a blind riser is to feed a steel casting properly, it is important that the riser neck stay open until the casting solidifies. The neck should in turn solidify before the riser so that proper directional solidification is achieved. If this sequence of events does not occur, the blind riser has

Publication: Modern Casting

Calculating riser size, location via CAD models. (Technology in Progress).

A fundamental problem facing foundries is developing an adequate riser design for feeding a casting. The classical approach to riser size estimation is to calculate the volume and cooling surface area of various parts of the casting and use those measurements to derive the modulus. Regions of the

Publication: Modern Casting