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586,229 · Belcher · "Framing Prism Lights or Tiles" · Page 2
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joint is produced. When the joint is soldered, the projections D² may be dispensed with, if desired. Such a construction is shown in Fig. 9, wherein the lugs D' on one end of the cross-pieces are provided with the openings D³, while the ends of the cross-pieces that fit between these lugs are plain, as shown in said figure. These ends are placed in position, and a small soldering-iron is inserted in the opening D³, so as to make contact with the warp and both connecting-pieces. All three pieces are thus easily and quickly heated, and a perfect soldered joint may then be formed.
    Instead of providing both the lugs D' with the openings D³, I may only provide an opening in one of the lugs, as shown, for example, in Fig. 10.
    I have described my invention in connection with prism-lights; but it is of course evident that it may be used in connection with any other suitable material.
    It is also evident that the several parts which I have described may be varied in form and construction without affecting the result desired, and I therefore do not wish to be limited in any manner by the construction shown.
    I claim—
    1. A frame for connecting separate pieces into a plate, comprising a surrounding outer frame, provided with a series of cross-pieces, a series of connecting-pieces between said cross-pieces and extending across the frame at an angle thereto, some of said connecting-pieces provided at one end with enlarged parts or lugs adapted, when the connecting-pieces are in position, to engage said cross-pieces; the other end of said connecting-pieces adapted to fit between the lugs or enlarged parts on the adjoining connecting-piece, one of said lugs on each cross-piece being perforated so as to expose the connecting-piece and cross-piece engaged thereby.
    2. A frame for connecting separate pieces into a plate, comprising a surrounding outer frame, provided with a series of cross-pieces, a series of connecting-pieces between said cross-pieces and extending across the frame at an angle thereto, some of said connecting-pieces provided at one end with enlarged parts or lugs adapted, when the connecting-pieces are in position, to engage said cross-pieces; the other end of said connecting-pieces adapted to fit between the lugs or enlarged parts on the adjoining connecting-piece, and provided with projections, which project through openings in said lugs so as to connect the parts together.
    3. A frame for connecting separate pieces into a plate, comprising a surrounding outer frame, provided with a series of cross-pieces, a series of connecting-pieces between said cross-pieces and extending across the frame at an angle thereto, some of said connecting-pieces provided at one end with enlarged parts
or lugs adapted, when the connecting-pieces are in position, to engage said cross-pieces; the other end of said connecting-pieces adapted to fit between the lugs or enlarged parts on the adjoining connecting-piece, and provided with projections, which project through openings in said lugs so as to connect the parts together, said projections each provided with a beveled or inclined face.
    4. A frame for connecting separate pieces into a plate, comprising a surrounding outer frame, provided with a series of cross-pieces, a series of connecting-pieces between said cross-pieces and extending across the frame at an angle thereto, some of said connecting-pieces provided at one end with enlarged parts or lugs adapted, when the connecting-pieces are in position, to engage said cross-pieces; the other end of said connecting-pieces adapted to fit between the lugs or enlarged parts on the adjoining connecting-piece, one of said lugs on each cross-piece being perforated so as to expose the connecting-piece and cross-piece engaged thereby, said parts being fastened together by means of solder inserted through said opening.
    5. A frame for connecting separate pieces into a plate, comprising a surrounding outer frame, provided with a series of cross-pieces, a series of connecting-pieces between said cross-pieces and extending across the frame at an angle thereto, some of said connecting-pieces provided at one end with enlarged parts or lugs adapted, when the connecting-pieces are in position, to engage said cross-pieces; the other end of said connecting-pieces adapted to fit between the lugs or enlarged parts on the adjoining connecting-piece, and provided with projections, which project through openings in said lugs so as to connect the parts together, said projections being battered or riveted so as to lock the parts in position.
    6. A frame for connecting separate pieces into a plate, comprising a surrounding outer frame, provided with a series of cross-pieces, a series of connecting-pieces between said cross-pieces extending across the frame at an angle thereto, some of said connecting-pieces provided at one end with enlarged parts or lugs adapted, when the connecting-pieces are in position, to engage said cross-pieces; the other end of said connecting-pieces adapted to fit between the lugs or enlarged parts on the adjoining connecting-piece, and provided with projections, which project through openings in said lugs so as to connect the parts together, said projections being battered or riveted so as to lock the parts in position, and a quantity of solder engaging the several parts so as to form the finished joint.
    7. A joint for frames and the like, comprising a cross-piece, a connecting-piece provided at its end with projecting lugs, between which said cross-piece passes, one of said lugs provided with an opening through which said