and with a foot valve which discharges into the open air, or into a reservoir of water-by which combination the steam which enters the condenser, escapes partly through the upper valve into the heater to heat the water for the boilers, and carrying with it a portion of the air from the condenser, and partly through the foot valve, carrying with it the water and air of the previous condensation; and when by these operations, the elastic force of the steam is reduced below the atmospheric pressure, the valves are closed, and the remaining steam condensed-all as described.

"I likewise claim the manner of preventing the water from flowing from one boiler into another, when the boat careens, by means of tubes, as described."

The condensation is effected by a jet of water introduced in the usual way. And the manner of preventing the water from flowing from one boiler to another, when the boat careens, is by forming the connexion between the two boilers by a tube, or tubes, which extends nearly to the off side of the two boilers, so that the careening of the boat carries that end of the tube which is in the upper boiler above the level of the water.

S. For an improvement in the manufacture of Salæratus; Edward Chamberlin, Boston, Mass., September 7th.

Instead of suspending common pearl ash in distillers' or brewers' fermenting vats, to be carbonated under the process covered by this patent, it is suspended in a vessel through which the volatile products of the combustion of anthracite coal are passed, by connecting this chamber with a stove or other fire chamber, the pipe between the two being enlarged and provided with sieves to prevent the passage of fire and fire dust, or ashes, which are always found in the flues of fire places. Steam, from a steam boiler, is also, from time to time, introduced into the chamber containing the pearl ash.

Claim. "What I claim consists in the employment and use of anthracite, i. e. its volatile products of combustion, in connexion with steam, without any purifying process of the volatile products of combustion, other than the separation of fine dust, as set forth, the whole being substantially in the manner and for the purpose specified."

9. For improvements in machinery for Combing Wool; George E. Donisthorpe, Bradford, England, September 11, 1844, to run fourteen years from the 25th of November, 1843, the date of the patent in England.

In this machine the teeth on the main or carrying wheel project from the rim of a wheel in lines parallel with the shaft, as in machines previously known and used; and the teeth of the combs that act in connexion with these are made coarse at one end, and gradually finer towards the other, and the fine end is placed nearer to the carrying teeth on the wheel than the other; and the working combs have in addition to their rotary, a movement towards and from the carrying teeth; and the wool is applied to the carrying teeth, by means of feed

rollers, that not only cause the wool to advance, but also lash or lay it on to the teeth.

Claim. "What I claim is arranging the teeth of the working combs at variable and decreasing distances apart, from one end of the comb to the other, as set forth (whether the said comb consists of a straight row of teeth, or several circular rows, or cylinders,) in combination with arranging the said teeth in such manner that as they increase in distance asunder, they shall increase in distance from the teeth of the carrying combs, or in other words, arranging the teeth of the working combs at increasing distances apart from each other, and from the carrying combs, as set forth.

Also, giving to each of the rotary working combs (when revolving and working with the teeth of the endless carrying combs,) a movement towards the common axis of the set of rotary working combs: the same being for the purpose specified.

Also, the manner of discharging wool from the teeth of the working combs, viz. by means of the sliding plates, &c., applied to the said teeth, and operated as set forth. Also, I do not claim the employment of one or more set of feed rollers for supplying the carrying combs with the fibrous material, but that which I do claim consists in the described manner of arranging and operating those feed rollers with respect to the carrying combs (or teeth thereof,) so as to cause them to lash, lay, or apply, the wool upon the said teeth, as specified, the said feed rollers and carrying teeth being arranged with respect to each other, and being operated, or depressed and elevated as described."

10. For improvements in the Argand Lamp ; Edwin B. Horn, Boston, Mass., September 11th.

We have here a patent granted for improvements in that class of Argand lamps in which the oil is forced up from a reservoir in the pedestal, to a fountain surrounding the burner, by a weight or other means of making pressure on the oil, in the reservoir below. The first of these improvements is for regulating the supply of oil to the fountain above, by means of a float provided with a valve which closes the aperture in the pipe through which the oil is forced from below, there being an air and oil passage between the fountain and the burner. And the second is for a device, fully expressed in the claim.

Claim. "I shall claim the combination and arrangement of the burner and fountain, coutaining the float with the air and oil passage between them, substantially in the manner described. Also forming one or more openings through the inner side of the upper part of the fountain, for the escape of the air and surplus oil, in the manner, and for the purpose set forth."

11. For an improvement in the Rotary Steam Engine; Edward Locke, Newport, England, September 11th.

The improvement in question is on an engine patented to J. J. Cordes and Edward Locke, on the 29th of March, 1841, and noticed

in the third series of this Journal, vol. iii, page 345, to which the reader is referred, to enable him to understand fully the following

Claim. "I claim as my invention, the application of a separate steam cylinder, or engine, distinct from the main rotary engine, but which may be worked by steam from the boiler, for working the exhausting apparatus, by which the vacuum is kept sufficiently perfect in the case of the main revolving wheel, instead of depending on the revolution of the main revolving wheel itself, to work the exhausting apparatus for producing the required vacuum for it to revolve in."

12. For a mode of adapting a Circular Saw to a Scow or Vessel for Cutting piles under Water; Erastus E. Cole, Boston, Mass., September 14th.

The journals of the saw shaft work in a frame which slides in ways attached to the scow, or vessel, and provided with a counter weight to balance the saw and sliding frame, so that the motions of the vessel occasioned by waves, &c. in harbors, shall not affect the operation of the saw.

Claim. "I claim the sliding saw in combination with the scow, or other floating body, for the purpose as herein specified."

13. For a machine for making Sand, Glass, or Emery paper; Edmund Morris, Philadelphia, Pa., September 14th.

The paper receives the glue from a rotary brush, that takes it from a distributing roller and vat, and then passes under another rotary brush which spreads it more equally; from this it passes under a sieve to receive the sand, glass, or emery, and then on its way to the roller on which it is rolled up, it is acted upon by the wings of a knocker, which throws off the surplus sand, &c.

Claim. "What I claim is the combination of the knocker with the sieve, or other suitable apparatus, for distributing the sand, glass, emery or other suitable material, and with appropriate rollers and brushes, whether arranged precisely in the manner herein described, or in any other that is substantially the same, producing a like result by analogous means."

14. For an improvement in the Press for Cotton, Hay, &c.; Wm. F. Provost, Barnwell District, South Carolina, September 14th. The follower of this press acts upwards against the head block.— The pressing levers are jointed by their upper ends, to the under side. of the follower, and by their lower ends to two rods called "swinging fulcra," which are jointed to the outer ends of the head block, or cap piece, of the press; and at the junction of the pressing levers and "swinging fulcra," there are rollers, around which ropes pass to draw the lower ends of the levers together, and thus force up the follower.

Claim. "All I claim in the before described arrangement, is suspending the swinging fulcra of the pressing lever of the follower, to the head block, or cap, of the frame, against which the substance is pressed in the manner and for the purpose set forth."

15. For an improvement in Reaction Water Wheels; Roswell Cook, Elkland, Tioga county, Pa., September 4th.

Claim. "What I claim is the peculiar construction of the buckets of the wheel, that is to say, starting from the top of the hub, at the circumference thereof, and diverging from it in a spiral manner to the middle of the bucket, from which point it gradually approaches the next succeeding bucket, till within such distance as is requisite to form a narrow issue descending from the upper edge of the bucket at an angle of about 45 degrees with the bottom thereof, to which it unites near the bottom of the next bucket."

16. For an improvement in Fish Nets; John Carr, Jackson Shannon, and William Carr, Sunbury, Northampton county, Pa., Sept. 14th. The Patentees say,-"The nature of our invention consists in dividing a cylindrical net into different compartments, and furnishing cach with a bait bag, the bait being suited to the different kinds of fish, and the large fish being prevented from entering the compartments of the smaller ones."

Claim. "What we claim as new, is the combination of a series of compartments in the manner and for the purpose described. We also claim the combination there with of the bait bags, as specified."

The different compartments are separated by diaphrams of net work and funnels, the meshes in each succeeding one being smaller, so as to admit the kind of fish to be caught in the second compartment to pass through the first division, those to be caught in the third to pass through the second division, and so on.

17. For improvements in the Process of manufacturing Iron and Steel; Thos. Southall and Charles Crudgington, Kidderminster, England, Sept. 14th.

Claim. "We claim the introduction, into the melted iron, &c., of a compound of sulphur and a nitrate, either alone or combined, with either or all the ingredients enumerated in the foregoing description, as described, whether the proportions hereinbefore given be followed or changed.'

The other ingredients with which the sulphur and nitre may be mixed, are borax, soda, or potash, and alum.

"The materials are broken into a small granular state, and equal parts, by weight, of sulphur, nitre, borax and alum, with half a part, by weight, of soda or potash, are to be well mixed together. These mixed matters are to be made up into parcels of about one and a half pounds each, that quantity being proper for treating about four hundred weight of pig iron, and in like proportion for any quantities of iron in the puddling furnace. These proportions are used when it is wished simply to improve the quality of the iron, but when it is desired to convert the iron into steel, then about four pounds or more of the mixture are required for each four hundred weight of iron."

18. For an improvement in the method of Cutting Raw Hide; Wm. Marshall and John B. Thursby, Brooklyn, N. Y., Sept. 14th.

"The nature of this invention consists in the application of circular cutters or shears, in combination with guards and a traversing pin, made in such manner as to determine the width to be cut, and maintain a circular and lateral movement of the hide in its way towards the shears. The shears, by a circular movement, being brought to act upon and cut a strip from the outside edge of the hide of the requisite size for making rope, or for other use."

Claim. "What we claim, is, first, the application of the circular shears, in combination with the guards, to regulate the hold which the cutters take upon the raw hide, as described; secondly, the application of the traversing pin as an axis for the circular sheet of raw hide to revolve upon, and to carry the hide, by a lateral movement, towards the shears, in combination with the shears and guards, as de

scribed."

19. For an improvement in the mode of Printing in Colors, denominated the Polychromatic Printing; Thomas F. Adams, Philadelphia, Pa., Sept. 17th.

"The nature of this invention consists in combining several ink fountains together, so as to distribute ink therefrom on to the rollers. that pass over the form in strips surrounding said rollers, so that the different lines of type will be inked with different colors."

Claim."What I claim, is the combination of a series of separate and complete inking fountains, constructed and arranged substantially as described, with a common inking apparatus, so as to impart to the ordinary inking roller various colored inks at one operation, in the manner and for the purpose set forth."

20. For an improved Busin or Platform, to be used in connexion with a Dry Dock, for raising vessels and landing them on separate cradles on Railways; Rutherford Moody and Samuel D. Dakiu, New York City, N. Y., Sept. 17th.

This is for an improvement on the mode of employing Floating Dry Docks patented by them on the 24th of November, 1843, and not yet noticed in this journal, which consists in providing a basin to receive the floating Dock when the vessel is floated up, and permit it to sink and rest on the bottom thereof, that the vessel may be drawn off, by means of a cradle, on to a railway on shore, so that the floating Dock may be used for raising any number of vessels and deposit them on the shore. The present patent is granted for the addition of a gate to this basin.

Claim. "What we claim, is the employment of a turning, floating, or swinging, gate, or a gate of any other form, for the purpose of excluding water from the basin above described, to be used in combination with the said basin and the elevating or floating dry dock, above mentioned."

21. For an improvement in the method of Coating Iron or Copper with tin and with zinc, or other metal; Edmund P. Moorewood,