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5.--SORGHUM MOLa.s.sES.--How can I separate the mola.s.ses from the sugar, in sorghum sugar mush, to make a dry merchantable sugar?
6.--FLUX FOR ALUMINUM.--Will some of your readers tell me, through your columns, the best flux to use in melting and mixing aluminum and copper?
INVENTIONS PATENTED IN ENGLAND BY AMERICANS.
[Compiled from the Commissioners of Patents' Journal.]
APPLICATIONS FOR LETTERS PATENT.
350.--BREECH-LOADING FIRE-ARMS.--Eli Whitney, New Haven, Conn.
February 10, 1871.
352.--GOVERNOR.--Stilliman B. Allen, ----, Ma.s.s. February 10, 1871.
357.--WINDMILL.--A. P. Brown, New York city. February 11, 1871.
332.--FURNITURE CASTERS.--F. A. Gardner and H. S. Turrell, Danbury Conn. February 8, 1871.
339.--WIRE FABRICS FOR MATTRESSES.--Samuel Rogers, New York city.
February 9, 1871.
340.--SCREW PROPELLER Ca.n.a.l BOATS.--Thomas Main, Pierpoint, N. Y.
February 9, 1871.
362.--FLYER FOR SPINNING MACHINERY.--Thomas Mayor and Geo. Chatterton, Providence, R. I. February 14, 1871.
373.--TELEGRAPHIC APPARATUS AND DETECTORS.--W. B. Watkins, Jersey City, N. J. February 14, 1871.
381.--STEAM AND OTHER SAFETY VALVES.--Walter Dawson Scranton, Pa.
February 15, 1871.
388.--IRON RAILS AND BARS, AND MODES OF MANUFACTURING THE SAME.--Eldridge Wheeler, Philadelphia, Pa. February 15, 1871.
OFFICIAL LIST OF PATENTS.
ISSUED BY THE U. S. PATENT OFFICE.
FOR THE WEEK ENDING MARCH 7, 1871.
_Reported Officially for the Scientific American._
SCHEDULE OF PATENT FEES
On each Caveat $10 On each Trade-Mark $25 On filing each application for a Patent, (seventeen years) $15 On issuing each original Patent $20 On appeal to Examiners-in-Chief $10 On appeal to Commissioner of Patents $20 On application for Reissue $30 On application for Extension of Patent $50 On granting the Extension $50 On filing a Disclaimer $10 On an application for Design (three and a half years) $10 On an application for Design (seven years) $15 On an application for Design (fourteen years) $30
_For Copy of Claim of any Patent issued within 30 years_ $1 _A sketch from the model or drawing, relating to such portion of a machine as the Claim covers, from_ $1 _upward, but usually at the price above-named._
_The full Specification of any patent issued since Nov. 20, 1866 at which time the Patent Office commenced printing them_ $1.25
_Official Copies of Drawings of any patent issued since 1836, we can supply at a reasonable cost, the price depending upon the amount of labor involved and the number of views._
_Full information, as to price of drawings, in each case, may be had by addressing_
MUNN & CO., PATENT SOLICITORS, 37 PARK ROW, NEW YORK.
112,309.--HOSE SPRINKLER.--William Anderson, San Francisco, Cal.
112,310.--LOCOMOTIVE SPARK ARRESTER.--J. G. Armstrong, New Brunswick, N. J.
112,311.--TOOL FOR CARRIAGE MAKERS' USE.--George Atkinson, San Francisco, Cal.
112,312.--POTATO PROBE.--John A. Beal, Waterford, N. Y.
112,313.--HINGE FOR CARRIAGE DOORS.--George W. Beers, Bridgeport, Conn.
112,314.--STOVE LEG.--James Birckhead, Jr., Baltimore, Md.
112,315.--CLOTHES PIN.--Orris A. Bishop, Chicago, Ill.
112,316.--MANUFACTURE OF ROCh.e.l.lE SALTS AND BORAX.--V. G. Bloede, Brooklyn, N. Y.
112,317.--BEEHIVE.--Felix Brewer, Waynesville, Mo.
112,318.--THILL COUPLING.--Theodore Burr (a.s.signor to Allen Muir and Henry Muir), Battle Creek, Mich.
112,319.--EVAPORATING PAN FOR SACCHARINE LIQUIDS.--F. C. Butler, Bellows Falls, Vt., a.s.signor to himself and James B. Williams, Glas...o...b..ry, Conn.
112,320.--DOOR SECURER.--William H. Caldwell, Wheeling, W. Va.
112,321.--TOE-CALK BAR.--R. B. Caswell, Springfield, Ma.s.s. Antedated March 2, 1871.
112,322.--GLa.s.s FLATTENING FURNACE AND LEER.--James Clabby, Lenox, Ma.s.s.
