There are no general laws by which patents can be secured in Canada by American citizens. The power invested in the Canadian government is restricted to resident subjects, who must be inventors. Some change ought to be made so as to enable all to secure patents in Canada and other colonies, as the English Government has denied its own jurisdiction in this respect,—therefore the door is shut against all who are not bound to that Government. List of Patent Claims Reported Officially for the Scientific American Issued from the United States Patent Office for THB WHBK ENDING AUG. 2, 1853 REED MUSICAL INSTRUMENTS—By J. A Bazin,of Canton, Masa : I claim, in the construction of organs, reed, and other similar instruments of mutfc, first, flatting the thirda, sixths, and sevenths of the scale by means of the regulating cylinder, construc-tsd as described, or by any other analogous contrivance, as set forth. Second, the valve, constructed, as described, of the two parts, with the two springs or their equivalents, in combination with the perforated plate, for the purpose of sounding the note flat or sharp, as set forth Third, the combination and arrangement of the sliding bar, the buttons, the bent wires, by which, meana the key board may be unlocked and moved in either direction by one hand, as set forth. Fourth, I claim the use of two or more wind-chests in the same instruments, for the purpose of providing a separate supply of air for the bass and treble notes, as get forth. Fifth, the peculiar arrangement of the bejlows and wind-chests, the latter being placed lielow the former, and communicating with the reed box by means of flexible passages passing up through the bellows, as described, which arrangement of parts enables me to make use of two wind chests, as set forth. Sixth, hanging the pedal with a movable fulcrum to prevent frictijn upon the foot, and to enable it to be operated with more ease and convenience, as set forth. Seventh, the construction and arrangement of the air passages above and below the reed as described, for the purpose of admitting the air, and permitting it to escape at the butt end of the reed, aa set forth Eighth, the presser bar, so constructed and arranged, as to keep down the rear portion of all the valves, while their front portion is left free to be operated by the keys, thereby modifying the tone of all the notes of the instrument, as set forth. SBED PLANNERS—By Q-. W. Brown, of Tylerville III Ante-dated Feb. 2,1853 : I claim, flrat, the os-ciiHtiD horizontal wheels, or distributors, in the bottom of the hoppers, haying slots and holes of various sizes, iu combination with the stationary caps and pins for the discharge of different kinds and quantities of seeds, as set forth. Second, I also claim the arrangement of the covering rollers, mounted as described, and performing the purpose of covering the seed, elevating the cut ters, in turning around, and also in adjusting them to differentdepths, as set forth. SEIICD PLANTERS—By Lebbeas Oaswell, of Harrison, Me.: I claim placing the axle of the gauge wheels on a fulcrum, in an adjustable slide, as described, so as to plant at any desired, and at the same time a uniform depth_ as set forth. WATER REGULATOB FOR STBAM BOILERS—By S. R. Clime, of Philadelphia, Pa.: I claim the water chambers described, and the contrivance and machinery, by which their action is aided and facilitated. ABDOMINAL SUPPORTERS—By H. B. Conant, of! Geneva, Wis- : I claim constructing the supporter with two encompassing springs, attached respectively at their centers to the front and hind pads (the hind spring being slightly curved upwards in the middle, and the front spring correspondingly curved downward, and both springs straight on their flat sides, as described, and uniting said springs at their adjacent ends, with straps of adjustable lengths, whereby ita pressure may be varied at pleasure, and the same supporter worn hy persons of different sizes, as set forth. EAILROAD CAR WHEELS—By T, J. Eddy, of Wa terford, N. Y. : I claim a cast-iron car wheel made in one piece, in which one end of the hub is united to the ritn by means of a disc, and the other by means of a series of spokes, aa set forth. PAPER RULING MACHINE—By C. S. Boynton, of New York City : I claim, first, the employment or use of the guides, by which the paper may be pro perly adjusted upon the apron3 and fed underneath the pens. Second, I claim the guides or stops attached to the selvedge of the endless apron, for the purpose of elevating the pens from the paper, at required distances, according as the guides or stops are adjusted upon the apron, and thereby causing the pa per to be ruled in lioesof the desired length, and having the requisite spaces between themj as described. [This is an excellent improvement on such machines, and has been in successful operation, in this city, for some time.—ED. SUBMARINE TUNNELS—By J. R- Miller, of Jersey City, N J.: I claim constructing eubmarine avenue* by castiog them in short managable sectiocs, hink ing each successively to its place, and uniting their euds successively, by means of flanchea, bolts and packing, as described, when these are combiued with a lip or the end of each eejtion to ensure the bait holas, and other corresponding parts to come and rest opposite to each other, as each sue ceadiog section is sunk to its place; and when th-structure is made to rest upon a graded bottom, as the work pi ogresses, and is held tflereto by supeiiu cumbent weight, when completed. 1 do not claim anj- one, or any number of the elements specified, except in combination with all the oEhera , nor when used fur any other purpose than that specified TEMPLES FOB LOOMS—By J. A. ScholflsH, of Westerly, R I : I claim the application of a sta tiooary ppur plate, to the templej with the pins in said plate inclined at an angle to the breast beam, so as to allow the cloth to be drawn down over the tops of Raid pins, aa tt"e lay beata up, and from their inclination, pseventiDg tae cloth from recediug, du ring the backward motion of the lay, as described. STEAM BOILBBS—by John M. Reeder, of Memphis, Tenn : I claim the application to steam boilers of a stem and the two valves and the mode of their operation, which will, at acy given pressure, allow ihe water ia the boilera, to pass freely on the fire un derneath them, thereby retaining the steam and prevent explosion, as described- L MA0HINK3 FOR MAKING UNKBS—Bj J. R. Rich- ardson, Jas. Waterman, &Ebenezer Wilder, of New Castle, Pa.: We claim, first, the manner of forming the point of the spike, as described, viz , by means of the combination of the wide dies, resting on the discs of the rollers, and the pointing rollers, arranged as set forth. Second, we claim slightly withdrawing the header, after th head ia completed, for the purpose of relieving the jaws from its pressure, before they begin to open, and holding it in that position, with the spikehead therein,untilthe jawa are opened, and the movable jaw and die are nearly or quite withdrawn from the spike, then withdrawing the header to its farthest position from the diea, allowing the spike to fall, thus causing the header to perform the duty of a clearer, as described. Third, we claim the combination of the cutting guide loop, the cutter and the holder, as construct ed and operating with the movable jaw and movable die, for the purpose of cutting ofl" the blank at suf flcient distance from the ends of the dies to leave material for the head, and carrying it over to the stationary jaw, at the same operation, as described Fourth, we also claim attaching the gauge firmly to the carriage of the pointing rollers, so that It will be withdrawn as the point is drawn out by the rollers, and returned to its position, when the pointers are withdrawn without any other mechanism to actuate it, as described. [See description of this excellent machine onpage 188, Vol. 8, Sci. Am] ATMOSPHEKtc TELEGRAPH AND RAILWAY—By I. S. Riehaidson of Boston, Mass. Patented in Eog land Dec 7, 1852 ; I caim, first, the check plate, consisting of three pieces, two being stationary, and the third or middle one, revolviDg between them, air tight, constructed as described, or in any manner substantially the same, and for the purposes get forth. Second, the turn-table constructed as described, of the ring and its station box, in combination with the two rings, or their equivalents, as set forth. Third, the method of announcing the arrival of the plucger, by means of the compression of the air within the cylinder at the instant of the arrival of the plunger, operating" through the orifice in the cy Under, the valve, and the hammer, as described, or in any other manner equivalent thereto, the compressed air beiog the agent. Fourth, I claim the combination of the pendant lever with the valve and spring, or aoologous devices, by which m&&u the valve is drawn up to its seat when no longer kept open by the pressure cf the atmosphere, and firmly locked in that position, until the lever is again tripped by the passing plunger" or load. [See engravings of this invention on page 265, Vol.8] PRINTING PRESSES—By S. P. Rugglea, of Boston, Mass Ante-dated Feb 2, 1853 : I claim the combination of the adjustable gauge with the diverging spriogafor catching and guiding the edge of the sheet when it is eliding to its position, as described. INDICATING THK HEIGHT OP WATER IN STEAM BoiLERa—By Nathan Thompson, Jr., of Williams-burgh, N. Y. : I do not claim either floats or valves, or chambers or levers as my invention, nor the combination of a float within a boiler, with indicators or alarms. I claim the method, as described, of slowing and stopping the main engine, by means of a float, or its equivalent, which is governed in ita position by the height of the water in the boiler, whereby I am enabled to furnish a reliable and not to be diregarded intimation of the level of the water in the boiler. Secondly, I claim a hook and pin, or their equivalents, in combination with a boiler float, Whereby said float is prevented from acting during ordinary fluctuations of the water level, as specified. (The boat is made to work the throttle valve—ED ] MACHINERY FOE MAKING RAILROAD CHAIRS—By Wm. Van Anden, of Poughkeepsie, N. Y : I claim the combination of rollers with adjustable shear stocks for cutting and shaping the lips of wrought-iron railroad chairs, as set forth, and their combination withthedies for that purpose. I alao claim the use of a movable drop,upperhalf or female die, in combination with a stoch, as set forth, and their combination with the discharging apparatus operated as set forth. I also claim the use of adjustable and removable benders, in bender stocks, in combination with the levers and. cams on the main shaft, for operating the same in an oblique and downward direction, and their combination with the dies and cutters for making wrought-iron railroad chairs. OBVIATING THE DANGBR PROM STBAM BOILER EXPLOSIONS—Bj Stephen Waterman, of Wiliiams-burgh, N Y. : I do not confine myself to placing 'he cold water reservoir on the top of the safety-chamber, aa it may be placed in other positions, and instead of communicating with the safety chamber, may communicate with tlie ft earn space of the boiler ; nor do I confine myself to the particular mechanical meana by which the tearing apart of the safety plate is made to open the communications between tha water reservoir and the boiler, and safety chamber But I claim the combination with the safety-chambor and safety plate of a cold water reservoir, which has means of communication at the lower part with th" safety chamber or steam space in the boiler, and at the upper part, with the steam space in the boiler, which said means of communication are closed when the boiler is in proper operation, by cooks, or their equivalents, which arecauaed to open by the tearing apart of the safety plate in any man cer as described, for producing the effect set forth [See notice of this invention on page 204, Vol. 8, Sci. Am ] ARRANGEMENT OP PIPBS FOR HOT BLAST FURNACES-B> Jesse Voung, of Franklin Puroaue, Ohio : I claim the arrangement of a series of aogulachori zontal pipes, three short vertical connecting pipes, which altfo serve as supports or pedestals, and a hollow base, through which the cold air passes into the pipes, and upon which holloir base the pipes* rest, bj> which arrangement the air is made to pass slowly through, the yipefl and bate, aod is exposed a fautiicient length of time to the action of the heat to bbcoma heated with a small expenditure of fuel. [Thisis a valuable invention, and one which will enhance the iron interests at the Weet very extensively. See brief description of this invention on page 107, Vol. 8.) MANUFACTURE OF PAPER STUFF—By J T. Coupler &fll. A C Mullier.of Paris, France Patented in France, Mav 7, 1S51; We do not claim the use of al-kaiies in th e treat ment of vegetable fiber for the preparation of paper pulp ; nor do we claim the individual parts of the apparatus employed in our process But we claim first, the process described,of reducing straw and other similar vegetable matters into pulp for making paper, said process consisting in applying and circnlatmg the solution of the hydrate of fioda or potash in the manner described, aod at or about the strength indicated, in combination witk the apparatus, as described, by which means we ara enabled to effect the reduction of a very large amount of pulp with a comparatively small quantity of liquor, and preserve the requisite strength in the liquor, and also obtain facility for its evaporation We do not claim the use of hypochlorites for bleaching pulp, but we claim5 secondly, the employment of hypochlorites in the process of bleaching straw or similar vegetable matter, when prepared as described, for the purpose of making japer, that is to say, ueingthemat oraboutthe strength set forth, viz ; 3 d"g-ees Baume ; and we claim tnis degree of strength only when employed upon such materials. [This is a singular claim truly.] ELASTIC TYPE FOR PRINTING ON, IRREGULAR SURFACES—By Julios Herriet, of New York City, (assignor to J. Gaylord Wells, of Hartford, Ct :1 claim making by casting in moulds, or by pressure plates with raised characters or figures, the entire substance of such platen being sufficiently elastic as to adapt it to printing, as described. HOT AIR ENGINES—By A. O. Willcox, of Philadel phia. Pa : I do not claim the use of renovating discs outside of the working cylinder, either when alternately travelling through the heated and cold air, or when stationary, and alternately transmitting heated and cold air, as I am aware such have been before used. 1 claim placing the economizing discs within or at tachingthem to the driving piston itself, whereby I am enabled to effect the complete rarefaction of the heated air, while the piston is descending, and before the cold air is again let into the cylinder, as described. [This appears to be like Stirling's Air Piston : see page 668 "Galloway Hietory "—ED.] I also claim enclosing the exhaust end of each single acting working cylinder, with an air tight head, when combined with a self acting valve, wnich opens from said exhaust end of the cylinder into the eduction pipe, in order to exclude the external atmosphere; and also for the double purpose of enabling any degree of rarefaction to take place within the exhaust end of the cylinder, without the return of air from the reservoir, and to allow the spent air finally to escape to said reservoir, as set forth. I alao claim enclosing eachworkiDg cylinder with-in a jacket (of any suitable material), regularly increasing in thicknessfrom the bottom to the top, in auch a manner that when it is surrounded by water or other fluid, the temperature of the working cylinder will be kept reduced to a proper and nearly uniform degree (without much waste of heat), so as not to injare the lubrication fluid inside, wherfcbyl am enabled to apply the heat of the furnace immediately under said cjUnder, thus obviating the use of an expansion heater, as described. ASTI FRICTION BOXES—By Q. T. Parry, ofSpriog Garden, Pa (assignor to John Eice, of Philadelphia, Pa : I claim making the rollers in the form of double frustrums reversed, and united at their bases, and travelling in circular grooves of nearly corresponding form of the surfaces between which the rollers, are interposed aa aet forth. DESIGNS. SEWING BIRD—By A. Gerould & J. H, Ward3 of Middletown,Ct. COOKING STOVE—By Julius Holzer, of Philadelphia, Pa, (assignor to North, Chase & North.