US122485A - Improvement in sieves for thrashing and separating machines - Google Patents
Improvement in sieves for thrashing and separating machines Download PDFInfo
- Publication number
- US122485A US122485A US122485DA US122485A US 122485 A US122485 A US 122485A US 122485D A US122485D A US 122485DA US 122485 A US122485 A US 122485A
- Authority
- US
- United States
- Prior art keywords
- thrashing
- sieves
- improvement
- separating machines
- machines
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010276 construction Methods 0.000 description 4
- 206010022114 Injury Diseases 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
Definitions
- the invention consists in the employment of a single sieve to do away with the three or four now used in thrashing-machines; and in its peculiar formation, to be hereinafter particularly described.
- the important feature of my invention is in the form and arrangement of the slats B. They are made on the bottom with a sharp or feather-edge, a a, gradually widening up to the top, andare there rounded, as shown at b b. This makes the space between each slat or interstice less at the top of the sieve than at the bottom, which accomplishes a very important double purpose-viz., that no grain can possibly lodge on the rounded tops, and the edges being sharp allow double the pressure of air from the bottom, which circulates through and greatly facilitates in clearing the grain of foreign matter. No grain can possibly lodge on or clog between these slats.
- the removable slats B B formed with rounded heads b and knife-edges or points a, and arranged vertically and held in position between the frames A A by means of the removable rods 0 O, the several parts constructed, arranged, and operating as herein shown, for the purpose set forth.
Description
T HOMAS NICHOLSON.
lmprove me nt in Sieve-'for Threshing and Separating M Machines.
No. 122,485. Paiente dj an. 2,1372
, WWW
Um'rnn STATES PATENT @rrron.
THOMAS NICHOLSON, OF TITUSVILLE, PENNSYLVANIA.
IMPROVEMENT IN SIEVES FOR THRASHING AND SEPARATING MACHINES.
Specification forming part of Letters Patent No. 122,485, dated January 2, 1872.
Nature of the Invention.
The invention consists in the employment of a single sieve to do away with the three or four now used in thrashing-machines; and in its peculiar formation, to be hereinafter particularly described.
General Description.
. metal, running through the frame and all the slats, which aid in strengthening them and.
more securely hold them in position. These rods O 0 being removable allow the slats to be taken out and replaced in case of injury.
The N ooelty.
The important feature of my invention is in the form and arrangement of the slats B. They are made on the bottom with a sharp or feather-edge, a a, gradually widening up to the top, andare there rounded, as shown at b b. This makes the space between each slat or interstice less at the top of the sieve than at the bottom, which accomplishes a very important double purpose-viz., that no grain can possibly lodge on the rounded tops, and the edges being sharp allow double the pressure of air from the bottom, which circulates through and greatly facilitates in clearing the grain of foreign matter. No grain can possibly lodge on or clog between these slats.
One sieve of my construction will do all the Work of the several now employed in thrashing-machines, doing away with those sieves entirely.
As is well known the sieves now used clog constantly, and require the attention of one person all the time to clear them. Mine keep themselves free, and when the grain has passed through a thrashing-machine with my sieve it will not be necessary to pass it through a fanning-mill.
In its construction it is extremely light, and can be made entirely of wood. In one hours. work it will save in labor enough to pay for itself; and it will cheapen the price of a machinein which it is used. Itisnoteasily broken, and, with ordinary treatment, will last as long as the thrashingmachine itself.
hat I claim is-- The removable slats B B formed with rounded heads b and knife-edges or points a, and arranged vertically and held in position between the frames A A by means of the removable rods 0 O, the several parts constructed, arranged, and operating as herein shown, for the purpose set forth.
In witness whereof I have hereunto signed my name in the presence oftwo subscribing witnesses.
THOS. NICHOLSON.
Witnesses:
J. R. DRAKE,
JOSEPH TnoMPsoN. (159)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US122485A true US122485A (en) | 1872-01-02 |
Family
ID=2191924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US122485D Expired - Lifetime US122485A (en) | Improvement in sieves for thrashing and separating machines |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US122485A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2420941A (en) * | 1944-09-19 | 1947-05-20 | Milton H Fies | Combined picking table and screen of the drag-conveyor type |
| US4018009A (en) * | 1975-06-09 | 1977-04-19 | Wheelabrator-Frye, Inc. | Vibratory finishing device |
| US20040122296A1 (en) * | 2002-12-18 | 2004-06-24 | John Hatlestad | Advanced patient management for triaging health-related data |
| US20090095661A1 (en) * | 2006-03-10 | 2009-04-16 | Tega Industries Limited | Screening device |
-
0
- US US122485D patent/US122485A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2420941A (en) * | 1944-09-19 | 1947-05-20 | Milton H Fies | Combined picking table and screen of the drag-conveyor type |
| US4018009A (en) * | 1975-06-09 | 1977-04-19 | Wheelabrator-Frye, Inc. | Vibratory finishing device |
| US20040122296A1 (en) * | 2002-12-18 | 2004-06-24 | John Hatlestad | Advanced patient management for triaging health-related data |
| US20090095661A1 (en) * | 2006-03-10 | 2009-04-16 | Tega Industries Limited | Screening device |
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