Metal deforming – By tool-couple embodying nonplanar tool-face – With complementary tool-faces
Patent
1994-02-14
1995-06-27
Crane, Daniel C.
Metal deforming
By tool-couple embodying nonplanar tool-face
With complementary tool-faces
72296, 72305, 72387, 298973, B21D 516, B21D 1702
Patent
active
054269679
ABSTRACT:
An portable apparatus for inexpensively forming plain angle ends of bullnose corner beading includes a base; an external die on the base; a pair of retainers for symmetrically holding opposite leg extremities of the corner bead relative to the external die; an internal die pivotally supported relative to the base for movement between open and closed positions for forming the end portion of the corner bead into the plain angular shape; a handle and link mechanism for operating the internal die; and a stop member rigidly located relative to the base for providing a predetermined length of the end portion. The retainers can be adjustable relative to the external die for accommodating corner bead having different flange widths, the retainers being movable symmetrically relative to a dihedral apex of the external die member. In another aspect of the invention, a method for forming the corner bead includes the steps of providing the corner bead having uniform bullnose cross-section; supporting the end portion of the corner bead against an external die; retaining opposite leg extremities of the corner bead in a laterally symmetric position relative to the external die; and driving an internal die into proximity with the exterior die whereby the planar surfaces of the interior die come into closely spaced relation to the external die over a predetermined distance for forming the end portion of the corner bead.
REFERENCES:
patent: 2638958 (1953-05-01), Norquist
patent: 3583199 (1971-06-01), Speiser
patent: 5311760 (1994-05-01), Thompson
Hamilton Materials Pla-Cor.RTM. Model 8590 brochure; Hamilton Materials, Orange, CA; 1 p.; no date.
LandOfFree
Apparatus and method for forming bullnose corner bead does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for forming bullnose corner bead, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for forming bullnose corner bead will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-280646