Jtieutifit �tueritau. [AUGUST 30, J 879. in cost. The price of glass is altogether saved and the labor I A Couple 01' Clock.s. then plastered on both sides to fill up all interstices, so that, reduced to a minimum, a band of several yards being coated i Dr. J. L. Blair, of Abingdon, Illinois, has recently com-practically, a fire-resisting partition is the result. Our sys' in the most, perfect manner in a few minutes. I hope to re-pleted a clock which is locally regarded as one of the most tern

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... f brick-nogging is a somewhat analogous operation, turn to the subject again as the experiments of my friend wonderful pieces of mechanism .ever made. This clock is 81 and answers tolerably well if properly done. In France the proceed, and trust that, meanwhile, other workers will turn , feet 2 inches high, 3 feet 4 inches wide, and 10 inches deep usual operation is as foll\lws: The framed partition is in their attention in this direction, as the greater the number' -lower half. The upper half is 6 inches deep and has a cir-closed on both sides by strong oak batten laths allout three who put their hands and heads to the work the sooner will cle top. The largest wheel is 13 inches in diameter. The inches wide, nailed horizontally about six inches apart; the desirable end be accomplished.-.Tohn Nicol, Ph. D., in ,longest shafting is 3 feet. Weight of clock, 118 pounds; of within this the spaces are loosely packed with rough stone, the British Journal of Photography. I weights-two in number-8 and 22 pounds. The case and and a strong mortar or plaster of Paris is laid on from both .. � • , .. I works are made mostly of walnut wood In addition to its sides at the same time, and pressed through the interstices, MECHANICAL INVENTIONS. j time-keeping capacity, this clock minutely illustrates (it is so that the rubble becomes embedded in the mortar, con-An improvement in the class of cotton presses whose fol-: claimed) the composition and movemenls of the solar system. solidating both it and the timber. The surfaces are also lowers are operated by a screw or screws, and are provided, Time is indicated at the center of the sun, a ball 15 inches covered so that the laths are hidden entirely. In this way with an automatic mechanism for shifting the driving belt, I in diameter. Around the sun the planets circle in their re-a thoroughly concrete partition is formed, more effective and thus arresting the follower either in its ascent or descent, ' spective orbits. The earth is 3 inches in diameter, turns on and self-supporting than the bri(;k wall; certainly superior has been patented by Mr. George Cooper, of Augusta, Ga. its axis once a day, and goes round the sun in an orbit 9 and more durable than the English brick-nog partition, and Its construction cannot be readily described without an en-: feet in circumference once a year. In its daily revolution throwing all ordinary pla�tered partitions into the shade. graving. I the earth indicates the time of day everywhere, shows day The brick-nog partition often fails; when the timber decays An improved form of ax1e box and journal for vehicles has and night, longitude, and so on. the bricks are not held together by a strong, and indepenbeen patented by Mr. James A. Manning, of Danville, Ind., The moon, 1M inch in diameter, accompanies the earth dent thickness of plaster. Thl' common hollow plastered It prevents rattling, and it may be adjusted to compensate I with its proper motion, illustrating its phases, eclipses, and partition becomes a nest for mice and a receptacle for for wear; the journal will retain the oil or grease, and the I ' the rest. The motion and phases of Venus are illustrated in vermin and dirt, and when a fire occurs it forms the box is prevented from wedging up0n the journal. like manner, and similarly the orbits and motions of other means of communication, between the floors, and affords a An improvement in side-bar wagons has been patented planets. Halley's comet, 7 inches long, traverses an orbit 14 channel for the supply of air. It is strange that although by Messrs. W ' illiam and Cyrus R. Fenstermacher, of Ship-feet in circumference, with a period of 76 years. these facts are patent to every practical builder, architects pensburg, Fa. The invention consists in combining with, At the right of the clock a skeleton, 10 inches high, strikes and builders still adhere in an obstinate fashion to the the king bolt and fifth wheel a stay or brace having rear I the hours. At the left another skeleton plays a tune as often plastered partition and the hollow wooden floor. We branches secured to side bars passing up on the inside of as required. A skeleton" Father Time" swings his scythe have constantly advocated floors, Rtaircases, and landings, fifth wheel, and having the front branches fastened to the at the center of the lower half of the clock Above are places particularly, of concreted and incombustible materials, bolster.