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F. Statement showing amount of fees received and number of applications

and caveats filed during each month of the year 1851.

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Table cxhibiting the business of the office for the last eleren years, and

the necessity of an increase of permanent clerical force.

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The foregoing statistics exhibit a very large increase of business in this office for the last eleven years; and by reference to the table it will be seen that the increase for 1851 is in full proportion with former years. This accumulation of business has been provided for from time to time by Congress, in authorizing necessary additions to the examining force. This force for the present is deemed sufficient. But there are still departinents of the business and labor of the office which have increased in a corresponding ratio with the examinations, and no provision made by Congress to relieve them. Hence the suggestions in relation to an increase of clerical force, in the preceding pages.

Table showing the number of patents, reissues, designs, and additional improvements granted at the Patent Office in

Washington during each month of the year 1851.

Total.

60

75

46

64 1 8

57 5 8 1

57

1 12

81

2 15

76 1 5

72 1 5 1

69 1 4

751 25 90 3

1

11

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44

62

73

71

70

98

61

87

82

79

74

869

Table showing the number of patents issued to citizens of different States during the year 1851.

State.

No.

Stato.

No.

State.

No.

State.

No.

2 2 4 11 18

56
5
7

38
2
4

6
10

Total patents.
Reissues
Designs.
Additional improvements.
Extensions, 9; disclaimers 3;

not included in this table.

9
12
17
121

3
10
8

Maine
Vermont.....
New Hampshire.
Massachusetts.
Rhode Island.
Connecticut..
New York
New Jersey.
Pennsylvania...

Delaware...
Maryland..
Virginia
North Carolina
South Carolina.
Georgia..
Alabama...
Mississippi.
Louisiana..

Arkansas.
Tennessee.
Kentucky
Ohio...
Michigan..
Indiana...
Illinois..
Missouri.

4
8
76

5
13
10
8

Florida..
Texas
Iowa
Wisconsin
District of Columbia
Foreign

53
235
15
77

8
2
1
4

Total..

869

Patents, reissues, designs and additional improvements are all included in this table.

IV.

CLASSIFIED LIST OF PATENTS THAT HAVE EXPIRED IN THE YEAR 1851.

Class I.-Agriculture, including instruments and operations.

Inventions or discoveries.

Patentees.

Residence.

Date of patent.

1837. Corn husking..... Jonathan Cutler....... Putney, Vt.

July 31 Cultivator for thinning cotton plants John Weaver..... Washington, D. C... July 5 Cutting cradle for hemp.. Wilson L. Larimore... Paris, Ky..

April 25 Cutting scythe snath..

Dexter Pierce..... Montague, Mass... Mar. 11 Hulling clover seed .....

William M. Barton.... Clark's Cross Roads, Dec. 20

Tenn. Hulling rice...

C. H. Harvey and E. Poughkeepsie, N. Y. May 30

Tracy. Lime spreading......

Francis H. Smith. Baltimore, Md....... July 5 Lime spreading and sowing. Levi Rice

Cheater, Pa.......

Aug. 31 Plough..

Bancroft Woodcock.... Mount Pleasant, Pa.. June 14 Plough..

Sam. Hartpence and Kingwood, N. J..... July 5

John D. Bowne. Plough..

John C. Smith..... Kingwood, N. J..... July 11 Plough...

John B. Norton.. Philadelphia, Pa... July 17 Plough...

Isaac Snider..... Mount Pleasant, Pa.. | July 17 Plough..... Stephen McCormick.. Auburn, Pa.

Dec. 1 Rake, horse.

David Dewey..

Poultney, Vt..... Nov. 23 Rake, revolving..

Stephen Coais

Shoreham, Vt..... April 17 Smut machine, (antedated August Benjamin M. Smith ... Rcchester, N. Y...

Sep. 8 1, 1837.) Smut machine.

Charles D. Childs. Mount Morris, N. Y. Aug. 15 Smut machine, for garlic.

Henry Staub .... Shepherdstown, Va.. Nov. 11 Strainers for milk-pails....

Isaiah Burmel

Derby, Ct.......

Aug. 18 Straw cutting...

Henry Silliman.... Perry village, N. Y... Mar. 30 Threshing and hulling clover seed.. | Jonathan Brooks.. Brownsburg, Va..... Dec. 15 Threshing machine....

Alexander W. Bowling. Front Royal, Va..... Dec. 26 "Threshing and winnowing. Moses Davenport

Phillips, Mass.... Nov. 23 Threshing and winnowing, (ante- J. A. & Hiram A. Pitts. Winthrop, Maine.... Dec. 29

dated June 29.) Winnowing, separating, &c., wild | Lester Butler.

Coble's hill, N. Y.. June 3 peas from grain. Yoke, horse and oxen.

Gideon Hotchkiss.... Windsor, N. Y...... Aug. 31

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Class Il.-Metallurgy and manufacture of metals.

Inventions or discoveries.

Patentees.

Residence.

Date of patent.

West

1837. Blow pipe for blast furnaces... John Barker...... Baltimore, Md...... Mar. 3 Door plates.....

William C. Austin Greensville, Va..... Jan. 31 Door springs...

Thomas Thorpe.....

Cambridge, Dec. 7

Mass.
Door, springs for shu:ting.... Ithiel S. Richardson.... Boston, Mass.

Oct. 20 Fire proof safe....

Benjamin Sherwood.... New York... May 8 Fire proof safe.

Daniel Fitzgerald.. Mount Morris, N. Y. | Aug. 15 Furnace blast... John Barker.... Baltimore, Mo..

April 20 Furnace for shear steel, &C.... Simeon Broadmeadow.. New York...

April 5 Furnace, smelling ore...

George E. Sellers..... Philadelphia, Pa... April 20 Furnace, smeling ore.... Simeon Broadmeadow.. New York...

April 5 Hinges or butts, double-centred joints! Egbert Hedge. Hartford, Conn.... Nov. 23 IV.- Classified list of patents, fc.-Continued.

Inventions or discoveries.

Patentees.

Residence.

Date of patent.

1837. Iron, carbonating and smelting.... Asa Whitney.

Southfield, N. Y..... July 17 Iron ore, smelting ....

Joseph Lyon...

Pottsville, Pa...... July 31 Iron, &c., washing ores.

Frederick Fredly... Logan Township, Pa. April 20 Joints for rules, double-centred Lemurl Hedge.... Hartford, Conn.... April 29 Knobs, door, drawer, commode, &c. David Holtman... Baltimore, Md. July 31 Knobs, glass, lo metallic sockets, Enoch Robinson & G. Boston, Mass. Oct. 20 attaching.

W. Robinson. Latch mortise.

Charles S. Gay.....

Nashua, N. H. Sep. 28 Latch mortise.

David N. Ropes... Portland, Maine.... Sep. 28 Lock, door........

Turner Whitehouse. Boston, Mass. Sep. 8 Lock, door.....

James McClony....

New York..

June 14 Locks, mail-bag and clasp.. Henry C. Joneg.. Newark, N. J..... Oct. 23 Locks, secret safety.....

William Hobbs. Springfield, Mass.... Dec. 20 Nails and brad culing..

Joseph Berry & Oliver Newmarket, N. H... Mar. 20

P. Rand. Nails, wrought ......

N. W. Bishop & Simo Saybrook and Ches- Sep. 21 eon Brooks.

ter, Comm. Rivets, making.... Levi Severance. Pittsburg, Pa.....

July 11 Screws, cutting

Joseph Blackoll Albany, N. Y..... July 29 Screws, cuting, of screw bedsteads. Palmer Williams..... Towanda, Pa...... Feb. 16 Screws, cutting wood..

Jacob Sloat & Thomas Ramapo and Pough- | Mar. 30
Springstead.

keepsie, N. Y. Screw, wood, turning beads.... Thomas W. Harvey... Poughkeepsie, N. Y.. Mar. 25 Screw, wood...

Clement (). Reed... Providence, R. 1..... Dec. 15 Shoes, horse Barziilai Young & Sam. Brooklyn, Conn.....

July 29 Tilus. Vice, bench, &c......

Linus Dean...

Utica, N. Y....... Feb. 16 Window blinds, fastener.

Elijah Jaquith

Brattleborough, Vt... Dec. 26 Window fastening, combined spring. Philip F. Hazard.. Philadelphia, Pa... July 11 Window sash, spring for upper sash Henry Hammond. Lewisburg, Pa....

Sep. 8 Wire, cutting and heading. Thomas W. Harvey... Poughkeepsie, N. Y.. Mar. 25

Class III.-Manufactures of fibrous and textile substances, including

machines for preparing fibres of wool, cotton, silk, fur, paper, foc.

Inventions or discoveries.

Patentees.

Residence.

Date of patent.

1837. Flax and hemp-breaking.

John Warren..

Westbrook, Me..... June 14 Flax and hemp-breaking.

Harvey Lull..

Ithaca, N. Y.. June 14 Flax and hemp-breaking and clean- David M. Langley and Westbrook, Me..... Sept. 21 ing

Samuel Davis. Flax and hemp-breaking and dress. Chap'n Warner, Abra- Belvidere, N. J...... July 31 ing.

ham F. Mixwell, and

Edwin J. Horn. Flax and hemp-dressing

William and Robert | Armwell, N. J... ... Oct. 12

Britain. Fur-cutting from skins..

Samuel Johnson.... Walnut Lane, N. C. Feb. 24 Gin, cotton

Alexander Jones.. New Orleans, La... April 25 Gin, cotton.

John Stevens...

Poughkeepsie, N. Y. Nov. 25 Gin, cotton.

Lucillius H. Mosely. Poughkeepsie, N. Y. Nov. 25 Gin, cotton, saw-cylinder for. Jacob Idler...

Philadelphia, Pa. Dec. 1 Hair-seating, weaving.

Charles R. Harvey Poughkeepsie, N. Y. Nov. 25 Hat bodies..

Hugh Moore...

New York city....

April 20

IV.Classified list of patents, &c.—Continued.

Inventions or discoveries.

Patentees.

Residence.

Date of patent.

1837. Hat bodies...

Henry A. Wells, J. Brooklyn, N. Y..... Apri: 20

James, and R. W.

Peck. Hat bodies, batting or web for..... Phineas Blanchard... New York city... June 14 Hat bodies, batting or web for.. Henry A. Wells and Brooklyn, N. Y..... Sept. 22

Robert W. Pech. Hemp-hatcheling ....

Phineas G. Rice and Danville, Ky........ July 11

Gabriel Rice. Knitting machine, .....

John McMullin and Sinking Valley and Feb. 11

Joseph Hallen, jr. Logan's Valley, Pa. Loom, (ante dated March 21, 1837). Christian W. Shauberr. Subject of the King May 8

of Saxony. Loom, (ante dated Feb. 10, 1837).. Enoch Burt..... Manchester, Conn... Aug. 8 Loom-power, figure....

William Compton. Taunton, Mass Nov. 25 Loom, regulating yarn beam... Welcome A. Potter.. Cranston, R. I... Nov. 23 Loom shuttle-tongue.... Comfort B. Thorpe.... Smithfield, R. I...

April 17 Loom temple, seli-adjusting..

Samuel P. Mason..... Newport, R. I... July 22 Loom treadles and harness

B. Harford and W. B. Enfield, N. H.... Dec. 29

Tilion. Napping cloth....

Benjamin Swazy. Mt. Vernon, Vt.... Aug. 8 Oil-cloth, drying..

Daniel Sampson.. Winthrop, Me...... May 30 Paper sizing..

John Ames.

Springfield, Mass.... Dec. 1 Spinning woollen roving.

Edgar M. Titcomb. Andover, Mass...... July 29 Thread, preventing from waste, &c. John Golding. Dedham, Mass..... Aug. 15 Thread, waste, reducing to coiton- Ozden Griswold..... Hartford, Conn...... July 17

wool. Thread, waste, reducing to cotton- William Gray ........ Connecticut ........ July 29

wool. Woo!, cleaning...

J. Wolcott and C. W. | Roxbury, Mass. Oct. 18

Brown. Wool, cleaning burr from..... Erastus Traey.. Pougkeepsie, N. Y.. Dec. 20

Class IV.-Chemical processes, manufactures, and compounds, including

medicine, dying, color-making, distilling, soap and candle-making, mortars, cements, fc.

Inventions or discoveries.

Patentecs.

Residence.

Date of patent.

1837. Bitterings from keules, process of David Dear..... Sulina, N. Y........ Oct. 18

separating: Candle-moulding..

J. Moore and S. P. Strasburg, Pa....... Mar. 3

Bower. Candle-moulding......

Joseph H. Tuck...... Nantucket, Mass... July 11 Caoutchouc, divesting of its adhe- Charles Goodyear.... New York

June 17 sive properties. Cement for cisterns... Thomas Coyle...... Baltimore, Md.

Aug. 16 Cement, hydraulic, from basanite.. Ebenezer C. Warner.. Albany, N. Y...

Oct.

6 Coloring-matter, manufacture of.... Henry Stevens........ G. Britain, England.. Oct. 28 Composition mater for fire-brick,&c. Chrisi phr W. Fenton. Bennington, Vi..... Sept. 22 Composition, protecting metallic Edward M. Robinson.. New Bedford..

Aug. 8 sheathing of vessels. Composition, water-proof, for boots, Patrick G. Nagle...... Philadelphia, Pa., ... Feb. 1

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