Heating – With apparatus repair or assembly means
Patent
1989-09-14
1990-09-25
Yuen, Henry C.
Heating
With apparatus repair or assembly means
432 3, 432248, 110336, F27D 2300
Patent
active
049590120
ABSTRACT:
An apparatus for securing loose wall brick or refractory lining in process heaters eliminates the need for the assistance of personnel outside the heater. Also, the requirement for scaffolding outside the heater is eliminated. Brick or refractory lining on process heater walls becomes loose and pulls away from the skin because of expansion and contraction over a period of time. The holdback plate assembly may comprise a rod of stainless steel which is threaded at one end (access end) and slotted at the other end (non-access end). A piece of flat bar is pivotally attached off center in the slotted end of the rod thereby allowing it to rotate freely for 90.degree. when unrestrained. The rod is inserted through a hole drilled through the brick and heater wall then positioned such that the flat bar rotates 90.degree. in the slot. A stainless steel plate is then placed over the threaded end of the rod inside the heater and secured snugly in place against the brick by a stainless steel nut thereby preventing further movement of the brick.
REFERENCES:
patent: 2101786 (1937-12-01), Wise
patent: 2611330 (1952-09-01), Kirk
patent: 4143708 (1979-03-01), Haynes
patent: 4432289 (1984-02-01), Norman et al.
Shell Oil Company
Yuen Henry C.
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