Roller hearth furnace for glass sheets

Details Roller hearth furnace for glass sheets Roller hearth furnace for glass sheets

C - Chemistry, Metallurgy

03

C

49/46

C03C 27/00 (2006.01) C03B 29/08 (2006.01)

Patent

CA 1058405

ABSTRACT OF THE DISCLOSURE A roller hearth furnace having a plurality of horizon- tally elongated furnace modules aligned with each other in an end-to-end relationship so a roller conveyor may carry glass sheets horizontally through the furnace and thereby heat the glass prior to tempering. Each furnace module has a hollow con- struction with a circular cross-section defined by a semicircular lower housing portion and a semicircular upper housing portion. A separate counterbalance mechanism associated with each upper housing portion supports it independently of the others for movement between a lower closed position immediately over its associated lower housing portion and an upper open position where the interior of its associated lower housing portion is acces- sible. The counterbalance mechanisms each include four chains attached to counterweights in a manner that permits counter- balancing of the associated upper housing portion even if one chain should break. One chain of each counterbalance mechanism is driven by an associated reversible electric motor to raise and lower its upper housing portion, and a separate elongated operator handle extending along the length of each upper housing portion is coupled to the motor thereof so an operator can con- trol the motor operation from any position along the length of the particular furnace module. Each upper housing portion includes end walls that mitigate heat loss when one of them is open while adjacent ones are closed. Upper and lower end walls at each end of the furnace are reinforced to maintain horizontal openings of uniform size where glass enters and leaves the furnace.

243189

Affiliated with

Also associated with

Rating

Roller hearth furnace for glass sheets does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Roller hearth furnace for glass sheets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Roller hearth furnace for glass sheets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1000849