I claim the pin, a, secured in the oscillating hook, C, and catching in a slot in the hook, C', substantially as and tor the purpose described. 72,039.--TWEER.--John B. Himberg, Frederick City, Md. I claim a tweer consisting of the box, A, annular cover, C, with a convex under side, and of the removable ring, E, from which the concave plate, F, is suspended, all made and operating substantially as herein shown and described. 72,040.--LAMP FOR BURNING PETROLEUM.--James Hinks and Joseph Hinks, Birmingham, England. We claim, 1st, Constructing the burners of the said lamps substantially in the manner hereinbefore described and illustrated in figs. 1, 2, 3, 4, 5, and 6, of the accompanying drawings, that is to say, the combination in the same burner, of two or more flat or curved wick cases or holders, in which two or more flat wicks are placed, so as to produce thereby two or more flat flames or elliptical of nearly circular flames. 2d, Constructing and arranging the shade holders or galleries of the said lamps for the purpose of admitting air to the flames, substantially in the manner hereinbefore described, and illustrated in figs. 7, 11, 12 13 and 14, of the accompanying drawings. 3d, Supporting the shade holders or galleries in a vase, or cup on the top of the pillar of the lamp, and supplying air to the lamp through the said pillar or vase, or supporting them in a cup or vase without a pillar, the air in this case being supplied through the vase, substantially in the manner hereinbefore described, and illustrated in fig. 7 of the accompanying drawings. 4th, The improvement described and illustrated in figs. 11, 12, 13, and 14, of the accompanying drawings, for isolating the shade from the shade holder or gallery. 5th, The arrangement or combination of the parts of punkah-protectors or wind protectors, substantially in the manner hereinbefore described, and illustrated in figs. 7, 8, 9, 10, 11, 15, and 16, of the accompanying drawings. 72,041.--DEVICE FOR LASHING AND BINDING.--John M. Hirlinger, Red Rock, Pa. I claim the cord, A, provided with the links, B and C, hooked lever, D, and slide, E, with its ring, a, arranged and used as and for the purpose set forth. 72,042.--TOOL FOR OPENING FRUIT CANS.--Horace Holt, New York city. I claim, 1st, A tool for opening sheet metal cans, composed of a hand lever, B, carrying a tooth, c, and connected to tongs, A, or other equivalent means, capable of clamping said tooth-carrying lever to the can, as set forth. 2d, Placing the tooth, c, in an oblique direction, when the same is used in combination with the hand lever, B, and clamping device A, substantially as and for the purpose described. 3d, The raised bearing, d, in combination with the lever, B, and clamping device, A, substantially as and for the purpose set forth. 72,043.--MOP WRINGER.--Zadok Howe, Lowell, Mich.