US455845A - Sifter - Google Patents
Sifter Download PDFInfo
- Publication number
- US455845A US455845A US455845DA US455845A US 455845 A US455845 A US 455845A US 455845D A US455845D A US 455845DA US 455845 A US455845 A US 455845A
- Authority
- US
- United States
- Prior art keywords
- pan
- corrugations
- perforations
- sifter
- ridges
- 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
- 239000000463 material Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 239000010883 coal ash Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- QEVHRUUCFGRFIF-MDEJGZGSSA-N reserpine Chemical compound O([C@H]1[C@@H]([C@H]([C@H]2C[C@@H]3C4=C(C5=CC=C(OC)C=C5N4)CCN3C[C@H]2C1)C(=O)OC)OC)C(=O)C1=CC(OC)=C(OC)C(OC)=C1 QEVHRUUCFGRFIF-MDEJGZGSSA-N 0.000 description 2
- 230000036633 rest Effects 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
- B07B1/469—Perforated sheet-like material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B15/00—Implements for use in connection with stoves or ranges
- F24B15/007—Ash-sifters
Definitions
- My invention relates to an improved sifting-pan, adapted more particularly for sifting coal-ashes, though applicable to other uses.
- the object of the invention is to provide a simple and cheap sifter which will effectually accomplish its office in the shortest space of time; and it consists in certain peculiarities in the construction of the same, substantially as hereinafter described, and particularly pointed out in the subjoined claims.
- the rectangular pan A is represented as formed entirely of sheet metal, the sides and ends being very effectually connected with the bottom Without the use of rivets, in the manner indicated in the section, the rightangled edges 1) of the bottom B being engaged by the upwardly-bent under edges a of the sides and ends of the pan, and the bottom firmly held, when the seam is closed by means of the shoulder or offset ct.
- the bottom Bis formed of asinglepiece of sheet metal provided with corrugations running with the width of the pan.
- the ridges or elevated portions 0 of the corrugations have each a series of perforations c, and there are also similar perforations f in the hollows or depressionsbetween the ridges, the latter being preferably arranged in staggered relation with the perforations e. All of these perforations, as well as additional ones, if desired, in the sloping faces of the corrugations, maybe made either before or after corrugating the sheet, as preferred.
- the layer of material to be sifted which rests upon the corrugated bottom B, instead of sliding from side to side with comparatively little disturbance, as is the case with a smooth bottom, is repeatedly turned and shaken in passing over the successive ridges and hollows c and d, and the finer particles of the whole mass quickly find their way to the bottom and through the perforations e and f. It is evident, too, that the corrugations at the same time greatly stiffen and strengthen the bottom plate B.
- the bot-tom B may be raised midway of its length, thus providing a general incline from the middle toward either'end, as illustrated.
- the corrugations eX- tend in a direction at right angles to that of the inclination of the bottom, in order to more effectually accomplish their function, which, as stated above, is to turn the ashes over while the same are being sifted.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Seasonings (AREA)
Description
(No Model.) 5
W. T. HAIN'.
SIPTER. No. 455,845. Patented July 14, 1891.
qxhtwe/awo UNITED STATES PATENT OFFICE.
IVILLIAM T. HAIN, OF READING, PENNSYLVANIA.
SIFTER.
- SPECIFICATION forming part of Letters Patent No. 455,845, dated July 14, 1891.
Application filed April 29, 1890.
To all whom it may concern:
Be it known that I, WILLIAM T. I-IAIN, a citizen of the United States, residin g at Reading, in the county of Berks and State of Pennsylvania, have invented certain Improvements in Sifters, of which the following is a specification.
My invention relates to an improved sifting-pan, adapted more particularly for sifting coal-ashes, though applicable to other uses.
The object of the invention is to provide a simple and cheap sifter which will effectually accomplish its office in the shortest space of time; and it consists in certain peculiarities in the construction of the same, substantially as hereinafter described, and particularly pointed out in the subjoined claims.
The accompanying figure of drawing is a perspective View, partly in section, of a sifting-pan involving my invention.'
The rectangular pan A is represented as formed entirely of sheet metal, the sides and ends being very effectually connected with the bottom Without the use of rivets, in the manner indicated in the section, the rightangled edges 1) of the bottom B being engaged by the upwardly-bent under edges a of the sides and ends of the pan, and the bottom firmly held, when the seam is closed by means of the shoulder or offset ct. The bottom Bis formed of asinglepiece of sheet metal provided with corrugations running with the width of the pan. The ridges or elevated portions 0 of the corrugations have each a series of perforations c, and there are also similar perforations f in the hollows or depressionsbetween the ridges, the latter being preferably arranged in staggered relation with the perforations e. All of these perforations, as well as additional ones, if desired, in the sloping faces of the corrugations, maybe made either before or after corrugating the sheet, as preferred.
In operating the pan any suitable handles,
Serial 110,349,883. (No model.)
as g, may be used and the pan reciprocated in the direction of the arrows. The layer of material to be sifted, which rests upon the corrugated bottom B, instead of sliding from side to side with comparatively little disturbance, as is the case with a smooth bottom, is repeatedly turned and shaken in passing over the successive ridges and hollows c and d, and the finer particles of the whole mass quickly find their way to the bottom and through the perforations e and f. It is evident, too, that the corrugations at the same time greatly stiffen and strengthen the bottom plate B. To still further increase this strength and also make the disturbance of the material being sifted more radical and effective, the bot-tom B may be raised midway of its length, thus providing a general incline from the middle toward either'end, as illustrated. As shown in the drawing, the corrugations eX- tend in a direction at right angles to that of the inclination of the bottom, in order to more effectually accomplish their function, which, as stated above, is to turn the ashes over while the same are being sifted.
Having thus fully revealed my invention, I do not limit myself to the exact construction shown; but
What I claim is I p A. rectangular ash-sitter having its bottom inclining in opposite directions from its center and formed with corrugations extending in a direction at right angles to that of its inclination, and also with perforations in the hollows and 011 the ridges of said corrugations, all substantially as described, and for the purposes specified.
In testimony whereof I affix my signature in presence of two witnesses.
- WILLIAM T. HAIN.
W'itnesses:
EDMUND SHEETZ, JAMES R. TY-soN,
Publications (1)
Publication Number | Publication Date |
---|---|
US455845A true US455845A (en) | 1891-07-14 |
Family
ID=2524723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US455845D Expired - Lifetime US455845A (en) | Sifter |
Country Status (1)
Country | Link |
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US (1) | US455845A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2628718A (en) * | 1950-07-21 | 1953-02-17 | James O Dockins | Seed cleaner and grader |
US5944197A (en) * | 1997-04-24 | 1999-08-31 | Southwestern Wire Cloth, Inc. | Rectangular opening woven screen mesh for filtering solid particles |
-
0
- US US455845D patent/US455845A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2628718A (en) * | 1950-07-21 | 1953-02-17 | James O Dockins | Seed cleaner and grader |
US5944197A (en) * | 1997-04-24 | 1999-08-31 | Southwestern Wire Cloth, Inc. | Rectangular opening woven screen mesh for filtering solid particles |
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