Apparatus for placement of angle plates in transverse duct flang

Metal working – Means to assemble or disassemble – With means to regulate operation by use of templet – tape,...

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29709, 29818, 292435, 29252, B23P 1900, B23Q 710

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active

052839443

ABSTRACT:
An apparatus for and method of installing angle plates at the corners of ducts which has at the opposite ends of each panel of the duct channel shaped flanges into which is installed an angle plate with the angle plates being utilized to secure adjacent ducts together utilizing fasteners. The angle plates are configurated so as to be automatically fed by way of a supply hopper and associated machinery is constructed whereby a lowermost angle plate in a stack is automatically fed into position overlying duct channel flanges after the duct has been clamped in place followed by the forcing of the angle plate into the duct channel flanges and the securement of the angle plate in place. There is a notch in each corner of the duct between adjacent channel flanges and the angle plate is initially positioned with a corner portion thereof tilted downwardly into the notch, after which the angle plate is pressed into the two channel flanges. The machine may place two angle flanges into two corners of one end of the duct and, further, there may be two sets of machinery so as to simultaneously place angle plates into the channel flanges at both the bottom and top of a duct. Finally, the duct may come with two portions joined by a seam which is automatically locked together at the time of the placement of the angle plates.

REFERENCES:
patent: 4332203 (1982-06-01), Flowers
patent: 4507836 (1985-04-01), Hiromitsu
patent: 4870749 (1989-10-01), Roy et al.

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