B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
18/1170, 18/538
B29D 23/03 (1980.01)
Patent
CA 1106570
ABSTRACT OF THE DISCLOSURE Apparatus for temperature-conditioning workpieces such as bottles. The apparatus has a series of bar assemblies for supporting a number of elongated molded parts in side-by- side relationship, heat transfer assemblies including horizon- tally spaced panels extending along a chamber, a conveying com- ponent for the parts supported in the bar assemblies through the chamber between the panels and rotating component opera- tively interconnected with the conveying component and bar assemblies for turning the parts. Infeed means sequentially release loaded bar assemblies at regular intervals to the chamber while metering means preferably driven through down- stream equipment continuously release bar assemblies to the discharge end of the chamber. Reciprocable gate means allow temperature-conditioned parts to drop out of the bar assemblies to collection equipment. There is also disclosed a process for forming hollow articles in which process improvements in- clude (a) varying parts conditioning time by varying the number of bar assemblies in the fixed length chamber; (b) maintaining a temperature gradient between circumferentially uneven thick and thin sections of a preform wall to be reshaped into a molecularly oriented article in order to even out wall thick- ness reductions occurring during stretching in the article forming step. - 1 -
347891
Berggren Loring J.
Chin Charles L.d.
Reilly Joseph R.
Mcfadden Fincham
Monsanto Company
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