Panel form with removable overhang above well portion

Claim 2

A form for producing, by casting, molding or the like, a panel and the like having a generally planar portion, a thicker portion at one edge of the planar portion and a notch along the outer edge of said thicker portion, said form comprising: plate means corresponding to the contour of both edges of said panel and one side of said planar portion and said thicker portion, said plate means providing a well in which said thicker portion is formed; removable overhang means overhanging said well and corresponding to the contour of said notch; a first longitudinally disposed lip extending laterally and outwardly from the upper outer edge of said well, said overhang means being removably mounted on said first lip; a second longitudinally disposed lip extending laterally and outwardly from the opposite upper edge of said plate means; said plate means provides an upright wall at one edge connected to said second lip, a bevel connecting said wall with a flat comprising the majority of the width of said plate means, a downturn at the opposite edge of said flat and forming one side of said well, a bottom for said well, an opposite end wall forming the opposite side of said well and arcuate corners respectively Between said flat and said downturn, between said downturn and said well bottom and between said well bottom and said opposite end wall; an outer flange depending from the outer edge of each of said first and second lips; a series of gussets extending transversely to and attached respectively to said first lip, said opposite end wall and the corresponding depending flange, and to said second lip, said upright wall and the corresponding depending flange, including a gusset at each end of each said lip; and means closing the ends of the space above said plate means.

Claim 3

A form for producing, by casting or the like, a panel having an outer planar surface, an inner planar surface in spaced parallelism with the outer surface to define the panel thickness, squared, transverse ends, a longitudinal side edge at one side, a longitudinal thickened portion at the other side which is inwardly offset from the inner planar surface and a side notch at the outer side of the thickened portion having a depth corresponding to the thickness of the panel, which comprises: a plate means corresponding to the contour of the first said side edge, the inner planar surface, the thickened portion and the outer side edge of the thickened portion which terminates at the edge of the aforesaid side notch, the plate means at the thickened portion defining a well wherein the thickened portion of the panel is formed; a longitudinally disposed lip extending laterally and outwardly from the first-mentioned side edge at the level of the outer planar surface of the panel to define a striking surface for leveling material poured into the form to the level of the outer planar surface; a second longitudinally disposed lip extending laterally and outwardly from the outer side edge of the well, at the level of the inner planar surface of the panel, and in the plane of that portion of the plate means defining the aforesaid inner planar surface; an angular member having a base flange removably mounted upon the aforesaid second lip to overhang the well to define a face of the aforesaid panel notch and having an upright flange extending from the overhanging edge of the base flange and projecting upwardly to the level of the outer planar surface of the panel to define the base of the notch and a striking edge cooperating with the opposite, first-mentioned lip for leveling material poured into the form; a frame means for rigidly holding the plate means at the inner planar surface portion and at the floor of the well; a retractable holding means carried on the frame means for holding the side edge portion of the plate means and the opposite thickened portion when a panel is being poured into the forms, but to retract to permit these portions to flex when the panel is to be removed from the form; and means for closing the ends of the forms.

Claim 4

A form for producing, by casting or the like, a panel having an outer planar surface, an inner planar surface in spaced parallelism with the outer surface to define the panel thickness, squared, transverse ends, a longitudinal side edge at one side, a longitudinal thickened portion at the other side which is inwardly offset from the inner planar surface and a side notch at the outer side of the thickened portion having a depth corresponding to the thickness of the panel, which comprises: a plate means corresponding to the contour of the first said side edge, the inner planar surface, the thickened portion and the outer side edge of the thickened portion which terminates at the edge of the aforesaid side notch, the plate means at the thickened portion defining a well wherein the thickened portion of the panel is formed; a longitudinally disposed lip extending laterally and outwardly from the first-mentioned side edge at the level of the outer planar surface of the panel to define a striking surface for leveling material poured into the form to the level of the outer planar surface; a second longitudinally disposed lip extending laterally and outwardly from the outer side edge of the well, at the level of the inner planar surface of the panel, and in the plane of that portion of the plate means defining the aforesaid inner planar surface; an angular member having a base flange removably mounted upon the aforesaid second lip to overhang the well to define a face of the aforesaid panel notch and having an upright flange extending from the overhanging edge of the base flange and projecting upwardly to the level of the outer planar surface of the panel to define the base of the notch and a striking edge cooperating with the opposite, first-mentioned lip for leveling material poured into the form; a frame means for rigidly holding the plate means at the inner planar surface portion and at the floor of the well; a retractable holding means carried on the frame means for holding the side edge portion of the plate means and the opposite thickened portion when a panel is being poured into the forms, but to retract to permit these portions to flex when the panel is to be removed from the form; and means for closing the ends of the forms.

Claim 5

In the organization defined in claim 2, wherein: said frame means holds the plate means at the inner planar surface portion and at the floor of the well with outer edge portions of the inner planar surface portion and of the floor of the well being cantilever suspended from the frame means, whereby to facilitate flexing of the side edge portion of the plate means and the opposite thickened portion.

Claim 6

A form as defined in claim 1, wherein: said overhang means comprises an upright flange facing said plate means, a bottom flange resting on said first lip, transverse gussets extending between said flanges and a series of transverse slots in said bottom flange disposed between said gussets; a series of upright members positioned to extend through said slots are attached to said second lip; and means for locking said bottom flange of said overhang means against said first lip is associated with each said upright member.

Claim 7

A form as defined in claim 4, including: a base for supporting said form, which comprises: first and second supporting members disposed longitudinally beneath said well and saId second lip, respectively, said first member having an upright flange whose upper edge is attached to the underside of said well bottom at a position spaced from said opposite end wall; a series of channellike members extending laterally and outwardly from said first supporting member; a series of brackets extending between said second lip and said upright wall and between said first lip and said opposite end wall; a member having an angular flange attached to the upper edge of said second supporting member and attached at the opposite edge to the underside of said flat at a position spaced from said bevel; an angular bracket attached to said angular flange and an angular bracket attached to said channel members, beneath each said first-mentioned bracket; a flexing device extending between each said first-mentioned bracket and the corresponding angular bracket; a series of spreaders, including a spreader at each end, extending transversely between said first and second supporting members and attached thereto and to the underside of said plate means; and a series of longitudinal reinforcing members extending between said end spreaders and attached to the underside of said plate means.

Claim 8

A form as defined in claim 5, wherein: said end closing means comprise a plate detachably connected to each end of said form, said end plates having holes therein; a series of members outstanding from said end spreaders and said end gussets positioned to engage said holes in said end plates; and means for locking said end plates against the ends of said form and associated with said outstanding members.