Our New York Civic Fathers, have been taught a lesson which we hope will serve as a memento to future Aldermen. Sturtevant has been sentenced to 15 days imprisonment, and fined $250, the others are fined $250 and $102 costs and expenses. We congratulate our readers that such has been the case, namely, that the law has been triumphant, and that villany, although sitting in high places, is yet amenable to the decrees of justice. They have been found guilty of contempt of court, and punished accordingly. Fiat justi-tia mat clum. Many of the Baltimore Mechanics are still on the strike for higher wages. Some of the shops will not give the wages asked, and it is stated that numbers of the men are not able to stand out much longer. List of Patent Claims Issued from the United States Patent Office FOR THE WEEK ENDING MARCH 8, 1853 PRINTING PRESSES—By Seth Adams, of Boston, Mass. : I claim, first, the combination of the vibrating platen with the sheet holders, arranged as specified, so as to be kept up a little distance from the platen when in position to receive the sheet, and moving with said platen to the form, in order to hold the sheets thereon and draw them from the types, also with the gauges for registering the sheets. Second, the mode for keeping the sheet holdersup from the platen when the sheet is to be placed. Said means consisting of an arm on each end of tharod {on which said holders are fixed and with which they turr) ,and stops, against which said arms strike the arrangements and operation, being substantially as set forth. Third, the apparatus for delivering or taking off the sheets from the platen after it is printed, con sisting of the moving or sliding tympan cloth, in combination with the turning segment, to which an intermittent and reciprocating rotary motion is im parted by the catch, ratchet, and spiral spring, operating as specified. CANE JUICE EVAPORATORS—By Henry Bessemer, of Baxter House, England. Patented in England, Feb. 24,1852: I claim the combination of a hollow and perforated shaft, connected with an air blast apparatus, a series of plates, or a screw plate (placed around and on the Bhaft) and a reservoir, trough or basin, for holding the liquor to be evaporated. Also, the combination of a hot water vessel and its heating apparatus, the cistern for holding the saccharine liquor and the apparatus for effecting its evaporation by means of hot air blown on thin or extended surfaces, a screw or plates, as specified FILTERS FOR CANE JUICE—By Henry Bessemer, of Baxter House, England. Patented in England, Feb.24, 1862: I claim the combination of the receiving vessel, iotating filtering drum (placed with in the said vessel), gutters (within the drum), the hollow axle or shaft (connected with said gutters), and the sci-aper applied to the outer surface of the revolving drum, the whole being arranged and made to operate together, substantially as specified. BREAKING AND DRESSING FLAX—By S. A. Cle-mans, of Springfield, Mass. : I do not claim simply the double action of beaters, as that is well known in a great variety of machines for various purposes. What I claim is the method of breaking and dressing flax or other fibrous substances, by a beater constructed in the manner described (vibrating on a central axis), between the faces of which the flax, &e , passes as described, when this is combined with one or two pairs of rests placed in close proximity to the edges of the beaters between which the flax passes, as specified Also, in combination with the beater and rests for breaking and dressing, as described, the employment of a pair of rollers each of which is grooved in the direction of its periphery, and one of which ismade to vibrate in the direction of its axis, for the purpose of opening and softening the fibres, as described. MAGNETIC MACHINE TOR WASHING AND SEPARATING GOLD—By Samuel Gardiner, of New York City : I do not claim to have invented a rotary cylin der of magnets, for the purpose of separating magnate particles from ores or metals ; but I claim separating gold or other metal from earthy and magnetic particles, by means of a rotary cylinder of magnets, which magnets, at the same time as they collect the magnetic particles, serve as agitators for agitating the water and the metal and earthy and other foreign raatterwhich is mixed, for the purpose of washing away the said earthy and other foreign matter, the said cylinder of magnets being constructed and arranged in relation to the trough, contain ing aforesaid mixture in any way, substantially as set forth. (See engravings in No. 50, Vol. 7, Sci. Am ] DAGUERREOTYPE CASES—By J. F. Mascher, of Philadelphia, Pa : I do not claim the invention of a Sterescope. for that has been previously discover ed; bat I claim constructing a daguerreotye case with an adjustable flap or supplementary lid, said flip or lid being within the case and having two ordinary lenses placed in it; by which, upon adjusting the flap or lid, a sterescope is formed of the case and the two daguerreotypes, by binocular vision are apparently formed into a life-like figure. (This is a very excellent improvement, well worthy the attention of daguerrean artists). MOULDING IN FLASKS—By L. A Orcutt, of Alba ny, N. Y. : I claim, in combination with a flask having a continuous or reciprocating rotary motion, the rammer or rammers, so arranged as to be made, at any time during their operation, to work in any portion of the flask, whilst, at the same time, they have an automatic adjustment, so as to rise as the flask is filled and rammed, and adjust themselves vertically in regard to the flask, the whole being accomplished as described. MOULDING OR CAST-IRON PLATES—By Thaddeus A. Smith, of Albany, ? Y. : I claim the process of moulding the recesses in the tops of stove plates in tended for the reception of the lifters by which such plates are handled (which recesses are required to be dovetailed) by employing pattern cups, shaped to form such recesses, divided by a vertical cut into tvo parts, so that the said cups can be removed from the core formed by them, by moving each division of it horizontally from the core before raising it off the sand, and by fitting the cup pattern, into the pattern of the stove plate so that the plate pattern can be lifted from the sand, leaving the cup behind it, as set forth. MACHINES FOR DRESSING SHINGLES—By Joel Tiffany, of Cleveland, Ohio: I claim the combination of parts consisting of the pinions, with the intermediate gears The levers and joint levers and sections, with the connecting rods, and cam, for the purpose of operating the arms, as described, turning and removing shingles, at the same time, from one side of a reciprocating bed, to the other, and then, when its second face is dressed, throwing it from the machine in a finished state CANNON SIGHT—By John A. Wagener, of Charleston- C. : I claim the sighting apparatus, consisting of the corresponding pendula, as described, hung between the graduated side pieces or uprights, in connection with the protecting and regulating slide, with its rifle sights, said pendula haviDg free sway, by means of the rotary mounting of the uprights and upper part of the apparatus on the screws and pivots, and the whoe being attached and fchiftedinto horizontal position on the cannon by means of the movable spring clasps, all constructedand combined as set forth BE ISSUE. SPLINTS FOR FRACTURES—By Adam Hays, of Pittsburgh, Pa, Patented Aug. 13, 1850: I claim the cutting out a portion of the splint, to afford an opportunity for dressing as often as may be necessa ry, the upper and lower portions of the splint being kept firmly united by means of the brace, so as, by extension and counter extension, to keep throughout the treatment the proper relative position of the parts concerned, the slide beiDg replaced after each dressing, or any other device substantially thesame.