| 摘要 |
809,878. Making refrigerators; welding by fusion. CARRIER ENGINEERING CO. Ltd. Dec. 19, 1956 [April 23, 1956], No. 38706/56. Classes 83 (2) and 83 (4). [Also in Group XIII] To make a pan within the evaporator of a a refrigerating system (see Group XIII), a U- shaped open-ended trough 55 is passed into slots 65 in end plates 66, the outer ends of the slots being bevelled at 67. The bevelled part is then filled with the weld and the outer surface is ground off flat. Specifications 698,309, 787,298 and 800,249, [all in Group XIII], are referred to. |
