Apparatus for assembling a frame

Details Apparatus for assembling a frame Apparatus for assembling a frame

1975-05-22

1976-06-22

Larson, Lowell A.

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

Plural or complex apparatus

72384, 72388, B21D 5374

Patent

active

039642887

ABSTRACT:
Apparatus for assembling a frame fabricated from magnetically attractable material forming a strip member, the apparatus comprising a base member, a first pair of arms pivotally mounted on the base member, and a second pair of arms pivotally mounted for movement along the base member. The first pair of arms include magnets for holding the center portions of the strip for movement therewith to form a first corner of the frame. After the first corner is formed, the second pair of arms pivot to move the outer portions of the strip toward each other to enclose the frame structure. Preferably, one of the second pair of arms moves before the other arm so that one end of the strip is engaged in the opposite end of the strip to secure the final corner. Additionally, one of the second pair of arms is provided with a magnet to position a magnetically attractable catch member relative to the frame for movement therewith. Preferably, each of the pivot points is in alignment with an associated corner of the frame so that each of the arms moves an associated side of the frame without any movement therebetween.

REFERENCES:
patent: 2557346 (1951-06-01), Green

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