One of our subscribers, who is an attorney-at-law in a thrifty village in Pennsylvania, writes to us in the following sensible manner : "I am strictly orthodox, and I would as soon think of raising my family without the Bible in the house, as doing business without ( your paper in my office. I have been a regu- : lar subscriber to the SCIEUTIFIC AMERICAN ( for a number of years. Patent Claims Issued from the United States Patent Office FOE THB WEEK ENDING APRIL 20, 1858. {.Reported officially for the Scientific American.' HORSE HAT RAKES—N. E. Allen, of Trenton, Wis. : 1 am aware that rakes have been held until released by the operator, but heretofore the rake teeth, or their equivalents, must be in contact with the ground, so that contact rotated them, and even then the rotation was not positively certain. I lay no claim to any such contrivance. But I claim so connecting a lever, H, which actuates the dog, c, with a clutch that gears with the driving wheel, D, as that one operation throws out the dog and throws in the clutch, and vice versa, which makes a positive and compulsory rotation of the rake by the means set forth and described. GEARING FOR HORBE POWER—Cyrus Avery, of Tunk-hnnnock. Pa. : I claim, first, forming the main wheel with a wide periphery oast whole or in sections, so that any desired number of series ot intermediate wheels may work within it, one series above another, and each series to gear into the main wheel, thus enabling me, by slipping on or shipping off one or more series of intermediate wheels, to produce a very low, very high, or medium velocity. Second, I claim the method by which the main wheel is kept in position, viz., by means of a thimble attached to the center of the bed plate in connection with the flanges upon the lower intermediate wheels, and by the flange upon the outside of the main wheel in connection with the circle around and above it, and by the pivot at the top ot the main shaft. Third, I claim fie method by which any desired velocity is obtained, namely, by removing or adding one or more series of mtermed iate wheels, as described. LIFE BOAT—Leverett Ball, of Auburn, N. Y. : I claim the combination of the described doors with the life boat, for the purpose of preserving the lives of shipwrecked passengers, substantially as set forth. DRESSING SAWS—Job Batchelor, of Gamden, N. Y. : I claim the horizontal disk file, a, for the purposes described, and its connection and combination with the movable parts of the machine by which the same is operated as described, the whole being combined, arranged and operating substantially in the manner set forth. SEWINO MACHINES—Chas. F. Bosworth. of Petersham, Mass. : I claim the jointed rocking feed hand constructed and arranged as described, so as to play freely between and upon two fulcra when operating from beneath the sewing table, in combination with the pressure pad above said table, in the manner and for the purpose specified. I also claim regulating the angle of vibration of the feed hand constructed, arranged, and operating as herein described, by means of two stop?, one of which is so adjustable as to allow the fulcrum upon which the said feed hand moves to be raised or lowered, thereby diminishing or increasing the feed at pleasure, substantially as set forth. RUNNERS OF SLEDS—Silas Bullard, of Hartland, Mich. : I do not claim giving a movement to eleigh runners independent of the load that is above them. Nor do I claim giving the runner on one side a movement independent of that of the other. Nor do I claim the use of the link joint for connecting sleigh runners to the frame-work of a sleigh. But I claim constructing the rear runners of sleighs in separate frames, each frame being hung by link joints to the cross-bar, H, so as to admit of a fore and alt rising and pitching movement in each runner which shall be independent of the movement of the opposite runner as set forth. I also claim the construction of the tie beam, H, go contrived as to hold the separate forward runnerframes atihe proper distance apart by the fastening bolts, B h, near its ends, and at the same time to allow the independent rising and pitching movement in each runner by making the mortise holes in H', so large as to admit the bars, E" E", to play loosely therein, so as to allow of a slight rolling motion on the axis of H\ whenever the runners rise or pitch from the irregularities of the ground. AIE PUMP AND GASOMETER—Samuel Chichester, of Poughkeepsie, N. Y. : I claim a machine composed of a reservoir and two pumps, whose pistons having their weight proportioned as described, are combined with a shaft, K, or its equivalent, to which the power of a spring or weight, or other constant first mover i applied by means of a cord or chain, f, connecting them with a loose pulley on the aaid shaft, a wheel, M, fast upon the saidshaft, a stop for acting on the saidwheel to stop tfae shaft, and a proper contrivance for engaging the loose pulley with, and disengaging it from the shaft, the whole operating substantially as described, for the purpose set forth. [See a description in another portion of this paper.] SHARPENING DEVICE FOR ROTARY CUTTEES—Edward Conroy, of Boston, Mass. : I do not claim broadly the idea of rendering revolving cutters self-sharpening by bringing their edges into contact with a sharpening instrument. But I claim the sharpening device, H, when arranged and employed, substantially in the manner shown and described. [A notice of this invention will be found on another page.] CROSS-CUT SAWING MACHINE—Richard M. Cosby, of Indianapolis. Ind.: I claim no gain of power by leverage, nor any of the parts described, when taken separately, as new. But I claim the combination of the rocking lever, K, spring, c, and weight, J, with the saw frame as described and shown. COOLING AND DRYING MEAL—John Deuchfleld, of Oswego, N. Y.: I do not claim forcing a current of air between a pair of mill-stones, while the same are in operation, for the purpose of keeping the stones in a cool state and preventing the heating ol the grain, tor such means, although not very efficient, have been previously used. But I am not aware that parts arranged as herein shown, so as to allow the meal to be subjected to the blast during its entire, or nearly entire pasaage from the stones to the bolts, and insure the perfect cooling and drying of the meal, have been previously used. I claim, therefore, the arrangement and combination of the chests, D J: shafts, F K, elevators, F\ fan, G, and spout, I, substantially as and for the purpose shown and described. [A description will be found on another page.] PORTABLE INVALID BEDSTEADS—Zebuion C. Favor, of Chicago, 111. : I claim the arrangement in an invalid cot bedstead embracing the following several features, to wit. : two slotted straps, G G 1, two stop pins, j j, two loops, k, turning thimble eyes, D D, punctured strips, e e, beveled rails, A A, obliquely set pivoted legs, B, and turning thimble stop catchea, C, in the manner spe- K cified, and for the purpose of producing an improved / new article of manufacture of the character set forth. t^ CSee another page for a description of this improve- PLATFORM SCALES— Chas. H. Earle, of Green Bay, Wis. : I claim, first, supporting the platform by plates, 111, arranged as Bhown,and connecting the platform with the beam, Q, by means of the bent lever, O, rod, N, and arm, M, or an equivalent device, for the purpose specified. Second, The auxiliary weight formed of the chain, U, in connection with the cup, T, arranged as shown, or in any equivalent way to operate as and for the purpose r/This invention consists in a peculiar arrangement o^ means employed for connecting the scale beam with the platform, whereby the construction of the platform scales is simplified,'the parts made less liable to get out of repair, and the operation more perfect than usual.] DRIVING WHEELS OF LOCOMOTIVE ENGINES—John F. Elliott, of New Haven, Conn.: I claim the combination with the legs, E E, operated as described, of the feet, D D, jointed to the said legs, and connected together by chains, to operate substantially as set forth. [A description of this invention will be found on another page.] BRNisHER^Chas. Frampton, of Brooklyn, N. Y. : I claim a burnisher for spinning screws, whose operative extremity is formed substantially in the manner described. LIFE-PRESERVING BCKET-RAFT—Chas. French, of Jersey City, N- J. : I do not claim the construction of buckets with air chambers in them to make them serve as lloats or life-preservers. But I claim furnishing buckets with encircling gaskets or grummets, d d, or their equivalents, applied substantially asdescribed, so that two or more of such buckets may be combined to constitute a float or raft, as set forth. [These buckets are provided with a gasket or grummet around their lower part, so that when a number of these buckets are pushed one into the other, they form a raft or life-preserver, on account of the air inclosed in the air-tight space between each bucket Theyare excessively convenient, and are ready for instant use, not being at all in the way, and taking very few moments to put them together so as to form a raft of large dimensions and great buoyant power.] FIEI.D FENpE—Benedict Gabriel, of Elmira, N. Y.: I claim constructing the post halves, A A, with points, f f, having their inner edges wedging, so as to force said points further apart in the act, driving the post into the ground, arranged in combination with the step, BB, substantiallyinthemannerandforthe purpose specified. TREATMENT OF SULPHURETTED ORES—Isaac Gattman, of Philadelphia, Pa.: I am aware that caustic, carbonate, and sulphate of potash or soda have been used before in the working of the native metallic sulphurets, and I therefore do not claim their use as such exclusively. But I claim the use of sulphuric acid in connection with the hydrate, carbonate, or sulphate of potash or aoda, or with any compound thereof, in the mode of working the native metallic sulphurets, substantially in the manner set forth, and for the purpose specified. RAILS FOR STREET RAILROADS—John B. Henck, of Boston, Mass.: I claim in a cast-iron rail the combination of the supporting lap and dove-tailed dowel, the said dove-tail being cast on the said lap as set forth, whereby the rails are rigidly locked and1 prevented from rising or falling, or moving m either lateral direction. CLENCHING HORSE-SHOE NAILS—James Houck, of Green Castle, Ind.: I claim the use of the poat, A, when constructed with the cap,C,and band, B, io the manner and for the purposes described in my specification. RUNNERS OF SLEDS—John Hoyt, of Fishkill, N. Y. I claim, first, tho combination ot the T-headed noddle pin. P, with the dog joints, D D\ and the front bob, A, as described, and for the purposes set forth. Second, The combination of the noddle pin, P, with the jointed reach, Rl constructed and operated as and for the purpose described. Third, The attachment of the rear bob, X, to the double cranked axle, F, and to the body of the sleigh, in the manner and for the purposes set forth. STEAM GOVERNOR—Roswell D. Jacobus, of Newark, N. J.: I claim using a distinct motive power from the main engine with the motive power of the main engine to operate a governor in combination with machinery constructed in the same or similar manner, and for the purposes specified. CENTER-BOARDS OF NAVIGABLE VESSELS—Benjamin Joline, of Westfield, N. Y.: I do not claim broadly suspending a center board within its trunk by chains or ropes, for this has been previously done. But I claim suspending the front end of the center board, C, within its trunk, A, by means of the bridle, D, in combination with the bolt, e, and slot, d, or their equivalents, to serve as a guide, the parts being arranged to operate substantially as and for the purpose set forth. OPERATING BLACKSMITHS HAMMER—James W. Kerr, of Rochester. N. Y. ; I do* not claim the various parts of my automatic blacksmith separately considered. Bat I claim the combination and arrangement of the eccentric, H, with the slotted reciprocating gate, I, and bellows, K, whereby the required motions for successfully operating the bellows are obtained by the revolutions of the balance wheel, G, in the manner and for the purpose herein set forth. I also claim the combined operation of the wheel, G, with cam or cams, o, lever bar, M, hammer lever, f, hammer, L, and spring, d, whereby the power may be reciprocatingly employed between the actions of the bellows and trip hammer, so that the power released from one is expended on the other, and vice versa, substantially in the manner and for the purpose described, UMBRELLAS—Henry Kurth, of Brooklyn, N. Y. : I claim making the rib by coiling the wire into loop?, which serve, like ordinary holes in the rib, for the joints, and attaching the stretcher to the middle loop without the interposition of intermediate links, substantially in themanner and for the purpose as described. HARVESTERS—Henry Marcellus, of Amsterdam, N. Y.: I do not claim the pole plank, E, with castor wheel, G, attached for relieving the draft pole of the weight of the front end of the machine when the sickle is raised, for that has been previously used. Nor do I claim attaching the draft pole to the pole plank, irrespective of the particular arrangement, or the point where the pole is attached, as shown and described. But I claim connecting the draft bars, a a, of the draft pole to the pole plank, E, at point intermediate between its castor wheel, G, at the front end of the pole plank and the point of connection of the pole plank with the machine, substantially as shown and described for the purpose set forth. [This invention relates to an improvement in that class of harvesters in which a pole plank is employed to serve as a rest for a lever by which the cutting device is raised and lowered. The invention consists in attaching the draft pole to the pole plank at a point intermediate between the castor wheel at the outer end of the pole plank and the point where the pole plank is connected with the machine, whereby many advantages are obtained.] COMBINED COAL SCUTTLE AND ASH SIFTER—Archibald McNeil!, of Washington, D. C: I do not claim any of the parks described, separately. But I claim a coal scuttle, A, provided with the extended scoop-shaped piece, D, slide, C, screen, E, and cover, G, all arranged and operating substantially and tor the purpose as set forth and described. POTATO PLANTEE—F. S. McWhorter, of Smyrna, Del. : I claim the employment of a transverse hopper, i, having an inclined bottom, and arranged on one side of the endless chain conveyor, O, in combination with a longitudinal guide and retaining box, G H, which has its rear portion incl ined and its front portion horizontal, and a brusht K, which brushes off any surplus pieces of potatoes which may collect in the cells or chambers of the endless conveyor, substantially as and for the purposes set forth. [This machine consists of an endless chain of conveyors wbich continuously receive the pieces of potato from a side hopper, and carry them to a planting tube which conducts them into the ground. This is a simple arrangement and has been found in practice to be very well adapted for the purpose above named. DOMESTIC MANGLE—^Samuel Nowlan, of New York City : I do not confine myself to the application of mangles conducted and arranged as described, to bureaus only, as substantially thesame principle of construction can be applied to any kind of furniture, such as wardrobes, tables, desks, etc. I claim the mechanism of a mangle constructed and arranged in relation to and in combination with parts of any suitable articles of furniture in the manner and for the purposes specified. CORN SHELLERS—Elmon Parker,of Baltimore, Md.: I claim the combination of the cylinder, A, the spring back, d, and rollers, e, when they are constructed and arranged with respect to each other, as set forth for the purpose specified. SECURING TIRES TO RAILROAD CAB WHEELS—Lea Pusey, of Philadelphia, Pa.: I do not claim constructing locomotive and car wheels with plates or ringsrivet-ed to centers and tires, as these have been previously used. But I claim the slotted ring, b, forming a series of openings to admit corresponding parts of the tire,c, passing through said openings for the purpose specified and set forth. PORTABLE FIELD FENCE—L. S. Robison, of Gypsum, N. Y.: I claim any method of constructing a fence which will be portable and easily put u p by means of the panels constructed substantially as described, with the cross bars, B, and the blocks, e e, on the end of the projecting horizontal bars. OPERATING SEWING MACHINES—P. J. Steer, of Washington, D C. I disclaim the employment of a pawl and ratchet for the purpose of revolving a shaft continuously in one direction, as this is not new. But I claim the arrangement of the devices for starting sewing machines always in a right direction, and to prevent backward motion with the knee and foot of the operator, and without using the hand for that purpose, as set forth and described. RAILROAD RAILS—E. Wf Stephens and Richard Jenkins, of Covington, Ky. : We claim constructing a tubular Trail when the walls, BB, are welded, forced or pressed together from C to C, or from the base of the rail up, as represented and before described, (or so near together, that when the weight is placed on the rail in using it, the walls will force together), combined, with the walls made concaving on their outside at d d, from near the top of the rail down, a short distance below where they are made to meet for the purpose of making the walls brace inwards, with which combined structure and form of rail we can make a stronger one with the same quaniity of metal as mentioned and described in the specification. CATCH LATCH FOR FABM GATES—Joseph Summers of Raleigh, Va. : I claim the peculiar formed spring plate, K g, in combination with the spring bolt, D, as an attachment for farm gates, arranged and operating in the manner set forth, for the purpose of accomplishing the result specified. [With this arrangement the end of the spring latch is prevented from projecting out beyond the closing face of the front batten of the gate, when the gate is opened, and thus the annoyance of having the reins, gearing or garments catching upon the same in passing through the gate is completely avoided. Those who have been subjected to this inconvenience will readily appreciate the utility of this simple and neat contrivance.] HOLLOW CAST IRON COOKING UTENSILS—A. V. Van Hovenbergh, of Southside, N. Y.; I claim as anew and improved article ot manufacture, to wit, hollow cast iron cooking utensils, kettles, griddles, &c, having the interior surface which comes in contact with the cooking material polished by any of the usual processes for polishing metals. BIT-HOLDER—David H. Whittemore, of Worcester Mass. : I claim the holder, C E. with its cam, when applied in the manner and for the purpose set forth. METALLIC SHOES FOR THE BRACES OF TRUSS GIRDERS —T. B. White, of New Brighton, Pa. ; I do not claim the double shoes irrespective of the mode of construction, and combining the same with truss bracing. But I claim the combination with the diagonal braces, C C, in a truss girder of the peculiarly constructed metal male and female shoes, b c, and wedges, d d, substantially as specified, for the purposes of setting up the braces to give camberto, or to raise the girder as set forth. [With this simple arrangement in truss girders for bridges, the diagonal braces can be set up so as to give the girder any amount of camber, or to raise it in case of settling too low, by the introduction of wedges between the male and female shoes without danger of ' crushing the ends of the braces, and without liability of their getting out of place or having a chance to play-laterally or longitudinally. This is an important improvement in truss bridges.] QUARTZ MILLS—L, W. Williams, of Nevada City, Caf. : I do not claim the circular battery, that being by no means new. But I claim constructing the inside bottom of circular batteries (in which quartz is to be crushed) of a series of inclined planes or curved surfaces commencing at any desired base, and produced to any required hight, and over and in contact with which stampers or wheels are made to revolve and by theirrevolution over such inclines are alternately raised and let fall, substantially in the manner and for the purpose described. CURTAIN FIXTURES—T. R. Work, of Hartford, Conn.: I do not claim, broadly, the application of friction rollers to the shade roller, nor do I claim any of the parts separately. But I claim, first. The specified arrangement consisting of rollers, h h, bar, c. pin, e, yoke, c, case, A, endless band, F, roller, D, for the purpose set forth. Second, I claim, in combination with the above, the plates, A A', constructed with projecting ears, a, as shown, so that the plates may be attached either to the front side of the window casing as may be desired. [This invention consists in a novel application of friction rollers to a semi-circular yoke, the rollers and yoke being fitted within or to a case, and the whole arranged so that the shade or curtain may be retained at any desired point by friction produced by the pressure of the friction rollers on the shade roller, and the shade roller relieved of the friction whenever it is turned by the band ; the friction rollers causing the band to encircle the roller to an extent fully sufficient to ensure the rotation of the same, and the case which contains the friction rollers and yoke being so constructed that they may be applied at either side of the window, and either at the front or side of the window casing as may be desirable, ] SEED PLANTING HOES—Samuel Woodruff of Sparta, N. J. : I am aware that seed distributing devices have been attached to hoes, and arranged in various ways, in orderthattheseed may be distributed, the holesmade to receive it, and the seed covered at one operation, and I therefore do not claim separately any of the parts shown and described. But I claim the box, B, provided with the valve, C, and plunger, D, attached to the hoe, and used in connection with the sack or receptacle, G, placed on the opefator, and communicating with the box, B, by means of the flexible tube, E, the whole being arranged substantially as and for the purpose set forth. [This invention consists in the employment of a small box attached to the back of the hoe, provided with a valve and plunger, and used in connection with a seed receptacle or sack which is slung around the shoulder of the operator, and made to communicate with the distributing device by means of a flexible tube. The device may be readily applied to any ordinary hoe, and used by the operator with the greatest facility, the seed being planted and covered by the implement equally as quick as the ordinary process of covering alone by means of thehoe.] LIME KILNS—BernardZwart, of Keokukt Iowa: I claim the construction of a division wall, B, in combination with the two adjoining fire-placea, E, and walle, g , to secure the oven burning of both sides when desired. I claim the combination of the solid spherical triangle I, in connection with the form of the canals from R down to K, for the uses and purposes as above more fully described. I claim the particular construction of the hot air conductors, X, in combination with the division wall, B, and in combination with the draught flues, y, to procure the horizontal draft of hot air, and make the same serviceable, so as to act direct on the limestone in the manner and for the uses as fully described. MACHINE FOR MAKING WOODEN DOWEL PINS—A. H. Boyd (assignor to S. F. Chase), of Saco, Me. : I claim, first. The slotted clamp carriage or bed-piece, in combination with a gang of two or more circular saws for splitting or cutting off wood, substantially as specified. Second, The arrangement and adaptation of said circular cutters, in combination with said clamp carriages and circular saws, substantially as specified for the purpose specified. REAPING MACHINES—J. W. Brokaw (assignor to W. Brokaw and child), of Springfield, O.: I claim the combination of anauxjliary platform, H, with the platform for the reception of the grain as it is cut, when arranged, constructed and operated in a space between the latter and the driving wheel, in the manner substantially as and for the purposes set forth. SMOOTHING AND POLISHING IRON—F. A. Cannon (assignor to John Phillips), of Brooklyn, N. Y. : I claim the application and arrangement of rollers or cylinders to smoothing and polishing irons as described, by which a high degree of polish is imparted to lim n and other fabrics with the least expenditure of muscular power. MEAT CDTTEBS—P. Demeure, of Brooklyn. N. Y., assignor to Chas Chepy, of New York City: I do not claim the original invention of S. Millet. But what I claim as an improvement on theTsaid patent of S. Millet, of May 24,185a, is, first, The opening 1, in the cover, e, placed near the front part of said cover for the purposes and as specified. Second. I claim the arrangement of the hinged cover, e, and latches, 5 5, in connection with the removable basin, d*, for the purposes and as specified. Third, I claim the arrangement of the cutters, i i, acting throngh slots in the cover, e, in opposite directions on the meat, &c, to be cut as the same is presented by the revolving ba4in, substantially as and for the purposes specified. MANUFACTURE OF LEATHER, PASTEBOARD, AND PAPEE—-A. N. Mathieu, of Paris, France, aasignorto M. J. A. Guiet, of New Yark City. Patented in France. Apoil 13, 1855 : I do not claim the employment of leather in making pasteboard, &c, when the same is made to pass through a process of maceration with lime, or like substances, or when leather scraps are mixed with resinous or glutinous compounds to cause it to adhere, for all such modes are too expensive for practical use. But I claim manufacturing pasteboard or paper of leather Bhavings by simply washing and grinding and mixing the same with vegetable fibers, without the ad-tion of other manipulation or material, by which I make a cheap and merchantable article when heretofore the process was too expensive for its profitable use. METHOD OF VENTILATING RAILROAD CARS—Calvin Pepper (assignor to N. R. Scovel). of Albany, N. Y. : I claim the manner specified of purifying the air as it enters the car, by passing the same through the pneuno-meter composed of the tubes, b and c. in the water chamber, C,for the purposes and substantially as specified. CASTING CAR WHEELS—Robert Poole (assignor to himselfandG. H. Hunt), of Baltimore, Md. ; 1 claim the base, A, of the flask made in sections, BO that the center one may be removed without disturbing the remaining one, for the purpose aet forth. I also claim the sectional cope, C, so made that either section may be removed without disturbing the other one, for the purposes set forth. I also claim, in combination with the sectional base and cope, the central member, B, of the flask, with a lining of some non-conducting material, substantially in the manner and for the purpose described. HORSE SHOE MACHINE— Elwin Shaw, of Providence, R. I., and Calvin Carpenter, Jr., of Pawtucket, Mass., assignors to themselve3,and G. B. Justram, of said Providence : We claim varying the point at which the pressure for narrowing and thickening the heel commences, by moving the mold, K, in or out in the manner substantially as described. CORN PLANTERS—George Taylor, of Richmond, Ind., assignor to himself and J. W. Free, of Laporte, Ind. : Now I do not claim any particular method for the distri-bntion of the g.ain ; but I disclaim the method shown, and all other methods of distribution, for I hold that what is strictly my invention is applicable to many or most methods or devices for distribution now in use. Neither do I claim the devicesshown for operating the distributing apparatus by means of inclined planes, j j, held in contact with cam, j, by means of a spring, S- as this contrivance is already before the public. Nor yet do I broadly claim the use of either springs or weights for operating the marking contrivance. Butlclaim, first, The combination of parts, j'j'l, shaft, L, and wheel, K, with slide, G, for the purpose of correcting the machine, and making it plant in line with work already done. Second, I claim the weighted spring arms, p p, operated as shown, in combination with the devices sliown for correcting the machine, when said spring arms are so situated as to mark midway between the rows of planting. CHURN—James Macnisb, of Berlin, Win. : I claim the combination of a central spiral flanched or winged agitating shaft, C, with a Beries of encircling expressing rollers, A A, a portion of which have a direct motion in one direction, while the others have an indirect motion in an opposite direction, EE-IS8CE. POWER PRINTING PRESS—Isaac Adams, of Boston, Mass. Patented Oct 4,1830—extended for seven years from Oct. 4,1844—extended by Congress from Aug. 16, 1856, to March 2,1864—re-issue April 20,1858 : I claim, first, The method described, or any other aubstantially * the same, for giving the bed its properperiods of motion 1 aad rest, and producing impressions by means of the r combination consisting of the crank, D, the pitman, D', ) the declension lever, i 5 i 6, and the toggle joints, e' e'. ' Second, I also claim the described method or any g equivalent mechanism for giving the proper periods of motion and rest to the frlakct carriage, and each and all the parti attached to it by means of the combination consisting of the arm, o 4, the rocking bar, o 3. the incline plane by which said bar is disengaged, the shaft, O, and the crank, n, 13. Third, I also claim the combination of one or more feed frames, with the frisket or friskets or mechanism for receiving the sheet to be printed, the same being substantially as set forth. Fourth, I alao claim the described mode or any other essontially the same of securing against the platen the sheet to be printed, whereby it ia not only kept steady and prevented from bagging, but it is also, after the production of an impression upon it separated from the types in a proper and safe manner. Fifth, I also claim constructing the pitman as described, or in any manner substantially the same, the bearing surface, i 1, the shoulder, i 2, and the joint, h 5, constituting its essential characteristics, so as to allow said pitman to be operated and to produce effects in the manner substantially as specified. Sixth, I also claim, in combination with the described mechanism for producing the impressions, the treadle, K 4, or its equivalent, to prevent impressions being taken or produced while other parts of the press are in motio n whenever such prevention may be desirable. Seventh, I also claim the combination of the double frisket carriage, the bed, platen, and the rollers for inking the type with two sets of inking mechanism, the wholebeing made to operate together substantially as explained, and the several parts being constructed and connected substantially as set forth. Eighth, I also claim the combination consisting of the platen (tvhpn constructed substantially as stated), the bed and distribution cylinders. Ninth, I also claim the combination of a crank with the carriage, n 6, for the purpose of carrying the inking rollers over the form, and for giving the f riskets, n', their proper motions and periods of rest. Tenth, I also claim the mode of constructing the winter, E, or bottom bar, as shown in Figs. 8 and 34, or any equivalent device, by which inconvenient hight in the machine is avoided, said winter being made with a ledge or shoulder near its lower part upon which the togglejointsare sustained, substantially as described. Eleventh, I also claim the combination of the fountain with one or more distribution cylinders, and a traveler, L, the same being forthe supply and distribution of the ink, substantially as described. Twelfth, I also claim placing the apparatus for the supply and distribution of ink, so that the distribution cylinders rest over or nearly over the fountain, the roller which takes the ink from the fountain roller being placed between the fountain and the cylinders, K 6, K 5, in the manner substantially as shown. Thirteenth, I also claim the mode described of laying the ink upon the types by passing the rollers, K 5, K 6. between the bed and platen, said rollers being brought to a stand in their horizontal movement for the purpose of receiving their supply of ink from a cylinder or cylinders substantially as stated. Fourteenth, I also claim the described mode by which the nuts, g' g', which sustain the impression are brought to their proper positions and secured there, that is, by the hoops, g 2, set scrows, g3, and pins, g 5, substantially as specified. Fifteenth, I also claim the mode of producing the im-presaions by means of toggle joints applied to the under or reverse side of the bed, substantially as described. Sixteenth, I also claim the combination of the rocker shaft, d 2, and the levers, d', with the bed, the same being for the purpose of keeping the bed level, substantially as described. EXTENSION. MACHINES FOE SPLITTING LXATHBB—Alpha Richardson, of Boston, Mass. Patented April 16,1844—extended April 16,1858 : I claim the arrangement specified of the gage and feed rollers of a leather splitting machine, so that the bilge of the lower side, or the axis of the former shall be directly over or in the same vertical plane with the edge of the knife, wolle the axis of the latter is a little distance out of said vertical plane, and its upper bilge is a little atxre the level of the edge of the knife for the purposes recited in the specification.