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Patents: 353 of 530	UNITED STATES PATENT OFFICE. HENRY F. BELCHER, OF NEW YORK, N. Y., ASSIGNOR TO THE LUXFER PRISM PATENTS COMPANY, OF CHICAGO, ILLINOIS.	Henry F. Belcher 16 of 20
FRAMING PRISM LIGHTS OR TILES. SPECIFICATION forming part of Letter Patent No. 586,229, dated July 13, 1897. Application filed April 19, 1897. Serial No. 632,706. (No model.)

To all whom it may concern:     Be it known that I, HENRY F. BELCHER, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Framing Prism Lights or Tiles, of which the following is a specification.     My invention relates to framing prism lights, tiles, or the like, and has for its object to provide a new and improved frame by means of which said prism lights, tile, or the like may be firmly secured together.     My invention is illustrated in the accompanying drawings, wherein—     Figure 1 is a view of a prism-plate embodying my invention. Fig. 2 is a view similar to that shown in Fig. 1 after the joints in the connecting-pieces of the frame have been soldered together. Fig. 3 is a view showing the separated ends of the connecting-pieces of the frame. Fig. 4 is a similar view with the ends of the connecting-pieces connected together. Fig. 5 is a sectional view showing the parts in the relation indicated in Fig. 4. Fig. 6 is a view similar to Fig. 5 after the connecting-pieces have received a blow, showing the parts riveted together. Fig. 7 is a view similar to Fig. 5, showing a somewhat-modified construction. Fig. 8 is an enlarged view similar to Fig. 5 after the joint has been soldered. Fig. 9 is a view similar to Fig. 3, showing a modified construction of the ends of the connecting-pieces. Fig. 10 shows a further modification. Fig. 11 is a perspective view showing the joint after completion.     Like letters refer to like parts in the several figures.     I have illustrated my invention in connection with the framing of prism-lights.     As shown in Fig. 1, a series of prism-lights A A are formed into a prism-plate and are separated by the warps C and the cross-pieces D, preferably made of comparatively thin metal. The warps C extend the length of the plate and the cross-pieces D are inserted between said warps and are provided at their ends with the lugs or enlarged portions D', which engage the corners of the prism-lights and by which the several cross-pieces are

connected together. Fig. 1 shows the prism-plate before the joints between the connecting-pieces are soldered, and Fig. 2 shows the prism-plate after the joints have been soldered. The warps C pass between the lugs or enlarged parts E' on the cross-pieces D, as shown, for example, in Figs. 3 and 4. Most of these cross-pieces are formed with the lugs at one end only, the other end being formed with the projections D². The lugs D' are provided with the openings D³ to receive these projections. Said lugs are sprung apart to allow the projections to enter the openings D³ and then spring back to their normal position, thus connecting the ends of the connecting-pieces together.     As illustrated in Fig. 3, the projections D² are provided with beveled faces D4; but it is of course evident that these beveled faces may be dispensed with, as indicated, for example, in Fig. 7. After the ends of the cross-pieces D have been connected together, as shown in Figs. 4 and 5, the projections D² are bent or mutilated in any convenient manner so as to engage the lugs D', thus forming a strong and durable joint, as shown, for example, in Fig. 6. The riveting of these projections forces the ends of the cross-pieces against the warp C, thereby producing a tight and secure joint. After the joints between the cross-pieces have been formed, as shown in Fig. 6, the prism-plate may then be immersed in an electrolytic bath and the frame completed by depositing metal upon the warps C and the cross-pieces D. The riveting of the ends of the cross-pieces brings the several parts into intimate contact, so as to form them into a continuous electrical conductor.     If desired, the several joints may be soldered before the plate is put into the electrolytic bath.     On heating the joint (shown, for example, in Fig. 6) to prepare it for the solder the soldering-iron comes in contact with the several parts united at the joint, so that such parts may be thoroughly heated, thereby allowing the solder to be effectively applied, so as to join all the parts together. This joint after being soldered is illustrated in Fig. 5, and I find that an exceedingly strong and durable